(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Cucumber = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
module.exports = require('./register')().Promise

},{"./register":3}],2:[function(require,module,exports){
"use strict"
    // global key for user preferred registration
var REGISTRATION_KEY = '@@any-promise/REGISTRATION',
    // Prior registration (preferred or detected)
    registered = null

/**
 * Registers the given implementation.  An implementation must
 * be registered prior to any call to `require("any-promise")`,
 * typically on application load.
 *
 * If called with no arguments, will return registration in
 * following priority:
 *
 * For Node.js:
 *
 * 1. Previous registration
 * 2. global.Promise if node.js version >= 0.12
 * 3. Auto detected promise based on first sucessful require of
 *    known promise libraries. Note this is a last resort, as the
 *    loaded library is non-deterministic. node.js >= 0.12 will
 *    always use global.Promise over this priority list.
 * 4. Throws error.
 *
 * For Browser:
 *
 * 1. Previous registration
 * 2. window.Promise
 * 3. Throws error.
 *
 * Options:
 *
 * Promise: Desired Promise constructor
 * global: Boolean - Should the registration be cached in a global variable to
 * allow cross dependency/bundle registration?  (default true)
 */
module.exports = function(root, loadImplementation){
  return function register(implementation, opts){
    implementation = implementation || null
    opts = opts || {}
    // global registration unless explicitly  {global: false} in options (default true)
    var registerGlobal = opts.global !== false;

    // load any previous global registration
    if(registered === null && registerGlobal){
      registered = root[REGISTRATION_KEY] || null
    }

    if(registered !== null
        && implementation !== null
        && registered.implementation !== implementation){
      // Throw error if attempting to redefine implementation
      throw new Error('any-promise already defined as "'+registered.implementation+
        '".  You can only register an implementation before the first '+
        ' call to require("any-promise") and an implementation cannot be changed')
    }

    if(registered === null){
      // use provided implementation
      if(implementation !== null && typeof opts.Promise !== 'undefined'){
        registered = {
          Promise: opts.Promise,
          implementation: implementation
        }
      } else {
        // require implementation if implementation is specified but not provided
        registered = loadImplementation(implementation)
      }

      if(registerGlobal){
        // register preference globally in case multiple installations
        root[REGISTRATION_KEY] = registered
      }
    }

    return registered
  }
}

},{}],3:[function(require,module,exports){
"use strict";
module.exports = require('./loader')(window, loadImplementation)

/**
 * Browser specific loadImplementation.  Always uses `window.Promise`
 *
 * To register a custom implementation, must register with `Promise` option.
 */
function loadImplementation(){
  if(typeof window.Promise === 'undefined'){
    throw new Error("any-promise browser requires a polyfill or explicit registration"+
      " e.g: require('any-promise/register/bluebird')")
  }
  return {
    Promise: window.Promise,
    implementation: 'window.Promise'
  }
}

},{"./loader":2}],4:[function(require,module,exports){
(function (Buffer,process){
// Copyright (c) 2012, Mark Cavage. All rights reserved.
// Copyright 2015 Joyent, Inc.

var assert = require('assert');
var Stream = require('stream').Stream;
var util = require('util');


///--- Globals

/* JSSTYLED */
var UUID_REGEXP = /^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$/;


///--- Internal

function _capitalize(str) {
    return (str.charAt(0).toUpperCase() + str.slice(1));
}

function _toss(name, expected, oper, arg, actual) {
    throw new assert.AssertionError({
        message: util.format('%s (%s) is required', name, expected),
        actual: (actual === undefined) ? typeof (arg) : actual(arg),
        expected: expected,
        operator: oper || '===',
        stackStartFunction: _toss.caller
    });
}

function _getClass(arg) {
    return (Object.prototype.toString.call(arg).slice(8, -1));
}

function noop() {
    // Why even bother with asserts?
}


///--- Exports

var types = {
    bool: {
        check: function (arg) { return typeof (arg) === 'boolean'; }
    },
    func: {
        check: function (arg) { return typeof (arg) === 'function'; }
    },
    string: {
        check: function (arg) { return typeof (arg) === 'string'; }
    },
    object: {
        check: function (arg) {
            return typeof (arg) === 'object' && arg !== null;
        }
    },
    number: {
        check: function (arg) {
            return typeof (arg) === 'number' && !isNaN(arg);
        }
    },
    finite: {
        check: function (arg) {
            return typeof (arg) === 'number' && !isNaN(arg) && isFinite(arg);
        }
    },
    buffer: {
        check: function (arg) { return Buffer.isBuffer(arg); },
        operator: 'Buffer.isBuffer'
    },
    array: {
        check: function (arg) { return Array.isArray(arg); },
        operator: 'Array.isArray'
    },
    stream: {
        check: function (arg) { return arg instanceof Stream; },
        operator: 'instanceof',
        actual: _getClass
    },
    date: {
        check: function (arg) { return arg instanceof Date; },
        operator: 'instanceof',
        actual: _getClass
    },
    regexp: {
        check: function (arg) { return arg instanceof RegExp; },
        operator: 'instanceof',
        actual: _getClass
    },
    uuid: {
        check: function (arg) {
            return typeof (arg) === 'string' && UUID_REGEXP.test(arg);
        },
        operator: 'isUUID'
    }
};

function _setExports(ndebug) {
    var keys = Object.keys(types);
    var out;

    /* re-export standard assert */
    if (process.env.NODE_NDEBUG) {
        out = noop;
    } else {
        out = function (arg, msg) {
            if (!arg) {
                _toss(msg, 'true', arg);
            }
        };
    }

    /* standard checks */
    keys.forEach(function (k) {
        if (ndebug) {
            out[k] = noop;
            return;
        }
        var type = types[k];
        out[k] = function (arg, msg) {
            if (!type.check(arg)) {
                _toss(msg, k, type.operator, arg, type.actual);
            }
        };
    });

    /* optional checks */
    keys.forEach(function (k) {
        var name = 'optional' + _capitalize(k);
        if (ndebug) {
            out[name] = noop;
            return;
        }
        var type = types[k];
        out[name] = function (arg, msg) {
            if (arg === undefined || arg === null) {
                return;
            }
            if (!type.check(arg)) {
                _toss(msg, k, type.operator, arg, type.actual);
            }
        };
    });

    /* arrayOf checks */
    keys.forEach(function (k) {
        var name = 'arrayOf' + _capitalize(k);
        if (ndebug) {
            out[name] = noop;
            return;
        }
        var type = types[k];
        var expected = '[' + k + ']';
        out[name] = function (arg, msg) {
            if (!Array.isArray(arg)) {
                _toss(msg, expected, type.operator, arg, type.actual);
            }
            var i;
            for (i = 0; i < arg.length; i++) {
                if (!type.check(arg[i])) {
                    _toss(msg, expected, type.operator, arg, type.actual);
                }
            }
        };
    });

    /* optionalArrayOf checks */
    keys.forEach(function (k) {
        var name = 'optionalArrayOf' + _capitalize(k);
        if (ndebug) {
            out[name] = noop;
            return;
        }
        var type = types[k];
        var expected = '[' + k + ']';
        out[name] = function (arg, msg) {
            if (arg === undefined || arg === null) {
                return;
            }
            if (!Array.isArray(arg)) {
                _toss(msg, expected, type.operator, arg, type.actual);
            }
            var i;
            for (i = 0; i < arg.length; i++) {
                if (!type.check(arg[i])) {
                    _toss(msg, expected, type.operator, arg, type.actual);
                }
            }
        };
    });

    /* re-export built-in assertions */
    Object.keys(assert).forEach(function (k) {
        if (k === 'AssertionError') {
            out[k] = assert[k];
            return;
        }
        if (ndebug) {
            out[k] = noop;
            return;
        }
        out[k] = assert[k];
    });

    /* export ourselves (for unit tests _only_) */
    out._setExports = _setExports;

    return out;
}

module.exports = _setExports(process.env.NODE_NDEBUG);

}).call(this,{"isBuffer":require("../is-buffer/index.js")},require('_process'))
},{"../is-buffer/index.js":236,"_process":255,"assert":5,"stream":298,"util":309}],5:[function(require,module,exports){
(function (global){
'use strict';

// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
// original notice:

/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
function compare(a, b) {
  if (a === b) {
    return 0;
  }

  var x = a.length;
  var y = b.length;

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i];
      y = b[i];
      break;
    }
  }

  if (x < y) {
    return -1;
  }
  if (y < x) {
    return 1;
  }
  return 0;
}
function isBuffer(b) {
  if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
    return global.Buffer.isBuffer(b);
  }
  return !!(b != null && b._isBuffer);
}

// based on node assert, original notice:

// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

var util = require('util/');
var hasOwn = Object.prototype.hasOwnProperty;
var pSlice = Array.prototype.slice;
var functionsHaveNames = (function () {
  return function foo() {}.name === 'foo';
}());
function pToString (obj) {
  return Object.prototype.toString.call(obj);
}
function isView(arrbuf) {
  if (isBuffer(arrbuf)) {
    return false;
  }
  if (typeof global.ArrayBuffer !== 'function') {
    return false;
  }
  if (typeof ArrayBuffer.isView === 'function') {
    return ArrayBuffer.isView(arrbuf);
  }
  if (!arrbuf) {
    return false;
  }
  if (arrbuf instanceof DataView) {
    return true;
  }
  if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
    return true;
  }
  return false;
}
// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.

var assert = module.exports = ok;

// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
//                             actual: actual,
//                             expected: expected })

var regex = /\s*function\s+([^\(\s]*)\s*/;
// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
function getName(func) {
  if (!util.isFunction(func)) {
    return;
  }
  if (functionsHaveNames) {
    return func.name;
  }
  var str = func.toString();
  var match = str.match(regex);
  return match && match[1];
}
assert.AssertionError = function AssertionError(options) {
  this.name = 'AssertionError';
  this.actual = options.actual;
  this.expected = options.expected;
  this.operator = options.operator;
  if (options.message) {
    this.message = options.message;
    this.generatedMessage = false;
  } else {
    this.message = getMessage(this);
    this.generatedMessage = true;
  }
  var stackStartFunction = options.stackStartFunction || fail;
  if (Error.captureStackTrace) {
    Error.captureStackTrace(this, stackStartFunction);
  } else {
    // non v8 browsers so we can have a stacktrace
    var err = new Error();
    if (err.stack) {
      var out = err.stack;

      // try to strip useless frames
      var fn_name = getName(stackStartFunction);
      var idx = out.indexOf('\n' + fn_name);
      if (idx >= 0) {
        // once we have located the function frame
        // we need to strip out everything before it (and its line)
        var next_line = out.indexOf('\n', idx + 1);
        out = out.substring(next_line + 1);
      }

      this.stack = out;
    }
  }
};

// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);

function truncate(s, n) {
  if (typeof s === 'string') {
    return s.length < n ? s : s.slice(0, n);
  } else {
    return s;
  }
}
function inspect(something) {
  if (functionsHaveNames || !util.isFunction(something)) {
    return util.inspect(something);
  }
  var rawname = getName(something);
  var name = rawname ? ': ' + rawname : '';
  return '[Function' +  name + ']';
}
function getMessage(self) {
  return truncate(inspect(self.actual), 128) + ' ' +
         self.operator + ' ' +
         truncate(inspect(self.expected), 128);
}

// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.

// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided.  All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.

function fail(actual, expected, message, operator, stackStartFunction) {
  throw new assert.AssertionError({
    message: message,
    actual: actual,
    expected: expected,
    operator: operator,
    stackStartFunction: stackStartFunction
  });
}

// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;

// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.

function ok(value, message) {
  if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;

// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);

assert.equal = function equal(actual, expected, message) {
  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};

// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);

assert.notEqual = function notEqual(actual, expected, message) {
  if (actual == expected) {
    fail(actual, expected, message, '!=', assert.notEqual);
  }
};

// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);

assert.deepEqual = function deepEqual(actual, expected, message) {
  if (!_deepEqual(actual, expected, false)) {
    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
  }
};

assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
  if (!_deepEqual(actual, expected, true)) {
    fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
  }
};

function _deepEqual(actual, expected, strict, memos) {
  // 7.1. All identical values are equivalent, as determined by ===.
  if (actual === expected) {
    return true;
  } else if (isBuffer(actual) && isBuffer(expected)) {
    return compare(actual, expected) === 0;

  // 7.2. If the expected value is a Date object, the actual value is
  // equivalent if it is also a Date object that refers to the same time.
  } else if (util.isDate(actual) && util.isDate(expected)) {
    return actual.getTime() === expected.getTime();

  // 7.3 If the expected value is a RegExp object, the actual value is
  // equivalent if it is also a RegExp object with the same source and
  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
    return actual.source === expected.source &&
           actual.global === expected.global &&
           actual.multiline === expected.multiline &&
           actual.lastIndex === expected.lastIndex &&
           actual.ignoreCase === expected.ignoreCase;

  // 7.4. Other pairs that do not both pass typeof value == 'object',
  // equivalence is determined by ==.
  } else if ((actual === null || typeof actual !== 'object') &&
             (expected === null || typeof expected !== 'object')) {
    return strict ? actual === expected : actual == expected;

  // If both values are instances of typed arrays, wrap their underlying
  // ArrayBuffers in a Buffer each to increase performance
  // This optimization requires the arrays to have the same type as checked by
  // Object.prototype.toString (aka pToString). Never perform binary
  // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
  // bit patterns are not identical.
  } else if (isView(actual) && isView(expected) &&
             pToString(actual) === pToString(expected) &&
             !(actual instanceof Float32Array ||
               actual instanceof Float64Array)) {
    return compare(new Uint8Array(actual.buffer),
                   new Uint8Array(expected.buffer)) === 0;

  // 7.5 For all other Object pairs, including Array objects, equivalence is
  // determined by having the same number of owned properties (as verified
  // with Object.prototype.hasOwnProperty.call), the same set of keys
  // (although not necessarily the same order), equivalent values for every
  // corresponding key, and an identical 'prototype' property. Note: this
  // accounts for both named and indexed properties on Arrays.
  } else if (isBuffer(actual) !== isBuffer(expected)) {
    return false;
  } else {
    memos = memos || {actual: [], expected: []};

    var actualIndex = memos.actual.indexOf(actual);
    if (actualIndex !== -1) {
      if (actualIndex === memos.expected.indexOf(expected)) {
        return true;
      }
    }

    memos.actual.push(actual);
    memos.expected.push(expected);

    return objEquiv(actual, expected, strict, memos);
  }
}

function isArguments(object) {
  return Object.prototype.toString.call(object) == '[object Arguments]';
}

function objEquiv(a, b, strict, actualVisitedObjects) {
  if (a === null || a === undefined || b === null || b === undefined)
    return false;
  // if one is a primitive, the other must be same
  if (util.isPrimitive(a) || util.isPrimitive(b))
    return a === b;
  if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
    return false;
  var aIsArgs = isArguments(a);
  var bIsArgs = isArguments(b);
  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
    return false;
  if (aIsArgs) {
    a = pSlice.call(a);
    b = pSlice.call(b);
    return _deepEqual(a, b, strict);
  }
  var ka = objectKeys(a);
  var kb = objectKeys(b);
  var key, i;
  // having the same number of owned properties (keys incorporates
  // hasOwnProperty)
  if (ka.length !== kb.length)
    return false;
  //the same set of keys (although not necessarily the same order),
  ka.sort();
  kb.sort();
  //~~~cheap key test
  for (i = ka.length - 1; i >= 0; i--) {
    if (ka[i] !== kb[i])
      return false;
  }
  //equivalent values for every corresponding key, and
  //~~~possibly expensive deep test
  for (i = ka.length - 1; i >= 0; i--) {
    key = ka[i];
    if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
      return false;
  }
  return true;
}

// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);

assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
  if (_deepEqual(actual, expected, false)) {
    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
  }
};

assert.notDeepStrictEqual = notDeepStrictEqual;
function notDeepStrictEqual(actual, expected, message) {
  if (_deepEqual(actual, expected, true)) {
    fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
  }
}


// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);

assert.strictEqual = function strictEqual(actual, expected, message) {
  if (actual !== expected) {
    fail(actual, expected, message, '===', assert.strictEqual);
  }
};

// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);

assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
  if (actual === expected) {
    fail(actual, expected, message, '!==', assert.notStrictEqual);
  }
};

function expectedException(actual, expected) {
  if (!actual || !expected) {
    return false;
  }

  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
    return expected.test(actual);
  }

  try {
    if (actual instanceof expected) {
      return true;
    }
  } catch (e) {
    // Ignore.  The instanceof check doesn't work for arrow functions.
  }

  if (Error.isPrototypeOf(expected)) {
    return false;
  }

  return expected.call({}, actual) === true;
}

function _tryBlock(block) {
  var error;
  try {
    block();
  } catch (e) {
    error = e;
  }
  return error;
}

function _throws(shouldThrow, block, expected, message) {
  var actual;

  if (typeof block !== 'function') {
    throw new TypeError('"block" argument must be a function');
  }

  if (typeof expected === 'string') {
    message = expected;
    expected = null;
  }

  actual = _tryBlock(block);

  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
            (message ? ' ' + message : '.');

  if (shouldThrow && !actual) {
    fail(actual, expected, 'Missing expected exception' + message);
  }

  var userProvidedMessage = typeof message === 'string';
  var isUnwantedException = !shouldThrow && util.isError(actual);
  var isUnexpectedException = !shouldThrow && actual && !expected;

  if ((isUnwantedException &&
      userProvidedMessage &&
      expectedException(actual, expected)) ||
      isUnexpectedException) {
    fail(actual, expected, 'Got unwanted exception' + message);
  }

  if ((shouldThrow && actual && expected &&
      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
    throw actual;
  }
}

// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);

assert.throws = function(block, /*optional*/error, /*optional*/message) {
  _throws(true, block, error, message);
};

// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
  _throws(false, block, error, message);
};

assert.ifError = function(err) { if (err) throw err; };

var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    if (hasOwn.call(obj, key)) keys.push(key);
  }
  return keys;
};

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"util/":309}],6:[function(require,module,exports){
'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.default =


canonicalize;var _has_property = require('./has_property');var _has_property2 = _interopRequireDefault(_has_property);var _type = require('./type');var _type2 = _interopRequireDefault(_type);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}function canonicalize(value, stack) {
  stack = stack || [];

  function withStack(fn) {
    stack.push(value);
    var result = fn();
    stack.pop();
    return result;
  }

  if (stack.indexOf(value) !== -1) {
    return '[Circular]';
  }

  switch ((0, _type2.default)(value)) {
    case 'array':
      return withStack(function () {
        return value.map(function (item) {
          return canonicalize(item, stack);
        });
      });
    case 'function':
      if (!(0, _has_property2.default)(value)) {
        return '[Function]';
      }
    /* falls through */
    case 'object':
      return withStack(function () {
        var canonicalizedObj = {};
        Object.keys(value).sort().map(function (key) {
          canonicalizedObj[key] = canonicalize(value[key], stack);
        });
        return canonicalizedObj;
      });
    case 'boolean':
    case 'buffer':
    case 'date':
    case 'null':
    case 'number':
    case 'regexp':
    case 'symbol':
    case 'undefined':
      return value;
    default:
      return value.toString();}

}
},{"./has_property":7,"./type":11}],7:[function(require,module,exports){
"use strict";Object.defineProperty(exports, "__esModule", { value: true });exports.default = hasProperty;function hasProperty(obj) {
  for (var prop in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, prop)) {
      return true;
    }
  }
  return false;
}
},{}],8:[function(require,module,exports){
'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.default =



inlineDiff;var _diff = require('diff');var _padRight = require('pad-right');var _padRight2 = _interopRequireDefault(_padRight);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}function inlineDiff(actual, expected, colorFns) {
  var msg = errorDiff(actual, expected, colorFns);

  // linenos
  var lines = msg.split('\n');
  if (lines.length > 4) {(function () {
      var width = String(lines.length).length;
      msg = lines.map(function (str, i) {
        return (0, _padRight2.default)(i + 1, width, ' ') + '|' + ' ' + str;
      }).join('\n');})();
  }

  // legend
  msg = '\n    ' +
  colorFns.diffRemoved('actual') +
  ' ' +
  colorFns.diffAdded('expected') +
  '\n\n' +
  msg.replace(/^/gm, '    ') +
  '\n';

  return msg;
}


function errorDiff(actual, expected, colorFns) {
  return (0, _diff.diffWordsWithSpace)(actual, expected).map(function (str) {
    if (str.added) {
      return colorFns.diffAdded(str.value);
    }
    if (str.removed) {
      return colorFns.diffRemoved(str.value);
    }
    return str.value;
  }).join('');
}
},{"diff":169,"pad-right":250}],9:[function(require,module,exports){
'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.default =



jsonStringify;var _repeatString = require('repeat-string');var _repeatString2 = _interopRequireDefault(_repeatString);var _type = require('./type');var _type2 = _interopRequireDefault(_type);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}function jsonStringify(object, depth) {
  depth = depth || 1;

  switch ((0, _type2.default)(object)) {
    case 'boolean':
    case 'regexp':
    case 'symbol':
      return object.toString();
    case 'null':
    case 'undefined':
      return '[' + object + ']';
    case 'array':
    case 'object':
      return jsonStringifyProperties(object, depth);
    case 'number':
      if (object === 0 && 1 / object === -Infinity) {
        return '-0';
      } else {
        return object.toString();
      }
    case 'date':
      return jsonStringifyDate(object);
    case 'buffer':
      return jsonStringifyBuffer(object, depth);
    default:
      if (object === '[Function]' || object === '[Circular]') {
        return object;
      } else {
        return JSON.stringify(object); // string
      }}

}


function jsonStringifyBuffer(object, depth) {var _object$toJSON =
  object.toJSON(),data = _object$toJSON.data;
  return '[Buffer: ' + jsonStringify(data, depth) + ']';
}


function jsonStringifyDate(object) {
  var str = void 0;
  if (isNaN(object.getTime())) {
    str = object.toString();
  } else {
    str = object.toISOString();
  }
  return '[Date: ' + str + ']';
}


function jsonStringifyProperties(object, depth) {
  var space = 2 * depth;
  var start = (0, _type2.default)(object) === 'array' ? '[' : '{';
  var end = (0, _type2.default)(object) === 'array' ? ']' : '}';
  var length = typeof object.length === 'number' ? object.length : Object.keys(object).length;
  var addedProperties = 0;
  var str = start;

  for (var prop in object) {
    if (Object.prototype.hasOwnProperty.call(object, prop)) {
      addedProperties += 1;
      str += '\n' + (0, _repeatString2.default)(' ', space) + (
      (0, _type2.default)(object) === 'array' ? '' : '"' + prop + '": ') +
      jsonStringify(object[prop], depth + 1) + (
      addedProperties === length ? '' : ',');
    }
  }

  if (str.length !== 1) {
    str += '\n' + (0, _repeatString2.default)(' ', space - 2);
  }

  return str + end;
}
},{"./type":11,"repeat-string":273}],10:[function(require,module,exports){
'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.default =



stringify;var _canonicalize = require('./canonicalize');var _canonicalize2 = _interopRequireDefault(_canonicalize);var _json_stringify = require('./json_stringify');var _json_stringify2 = _interopRequireDefault(_json_stringify);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}function stringify(value) {
  return (0, _json_stringify2.default)((0, _canonicalize2.default)(value)).replace(/,(\n|$)/g, '$1');
}
},{"./canonicalize":6,"./json_stringify":9}],11:[function(require,module,exports){
(function (Buffer){
'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.default = type;function type(value) {
  if (value === undefined) {
    return 'undefined';
  } else if (value === null) {
    return 'null';
  } else if (typeof Buffer !== 'undefined' && Buffer.isBuffer(value)) {
    return 'buffer';
  }
  return Object.prototype.toString.call(value).
  replace(/^\[.+\s(.+?)\]$/, '$1').
  toLowerCase();
}
}).call(this,require("buffer").Buffer)
},{"buffer":40}],12:[function(require,module,exports){
'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.default =

unifiedDiff;var _diff = require('diff');function unifiedDiff(actual, expected, colorFns) {
  var indent = '    ';
  function cleanUp(line) {
    if (line.length === 0) {
      return '';
    }
    if (line[0] === '+') {
      return indent + colorFns.diffAdded(line);
    }
    if (line[0] === '-') {
      return indent + colorFns.diffRemoved(line);
    }
    if (line.match(/\@\@/)) {
      return null;
    }
    if (line.match(/\\ No newline/)) {
      return null;
    }
    return indent + line;
  }
  function notBlank(line) {
    return typeof line !== 'undefined' && line !== null;
  }
  var msg = (0, _diff.createPatch)('string', actual, expected);
  var lines = msg.split('\n').splice(4);
  return '\n' + indent +
  colorFns.diffAdded('+ expected') + ' ' +
  colorFns.diffRemoved('- actual') +
  '\n\n' +
  lines.map(cleanUp).filter(notBlank).join('\n');
}
},{"diff":169}],13:[function(require,module,exports){
'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.










format = format;var _inline_diff = require('./helpers/inline_diff');var _inline_diff2 = _interopRequireDefault(_inline_diff);var _stringify = require('./helpers/stringify');var _stringify2 = _interopRequireDefault(_stringify);var _type = require('./helpers/type');var _type2 = _interopRequireDefault(_type);var _unified_diff = require('./helpers/unified_diff');var _unified_diff2 = _interopRequireDefault(_unified_diff);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}function identity(x) {return x;}function format(err, options) {
  if (!options) {
    options = {};
  }
  if (!options.colorFns) {
    options.colorFns = {};
  }
  ['diffAdded', 'diffRemoved', 'errorMessage', 'errorStack'].forEach(function (key) {
    if (!options.colorFns[key]) {
      options.colorFns[key] = identity;
    }
  });

  var message = void 0;
  if (err.message && typeof err.message.toString === 'function') {
    message = err.message + '';
  } else if (typeof err.inspect === 'function') {
    message = err.inspect() + '';
  } else if (typeof err === 'string') {
    message = err;
  } else {
    message = JSON.stringify(err);
  }

  var stack = err.stack || message;
  var startOfMessageIndex = stack.indexOf(message);
  if (startOfMessageIndex === -1) {
    stack = '\n' + stack;
  } else {
    var endOfMessageIndex = startOfMessageIndex + message.length;
    message = stack.slice(0, endOfMessageIndex);
    stack = stack.slice(endOfMessageIndex); // remove message from stack
  }

  if (err.uncaught) {
    message = 'Uncaught ' + message;
  }

  var actual = err.actual;
  var expected = err.expected;

  if (err.showDiff !== false && (0, _type2.default)(actual) === (0, _type2.default)(expected) && expected !== undefined) {
    if (!((0, _type2.default)(actual) === 'string' && (0, _type2.default)(expected) === 'string')) {
      actual = (0, _stringify2.default)(actual);
      expected = (0, _stringify2.default)(expected);
    }

    var match = message.match(/^([^:]+): expected/);
    message = options.colorFns.errorMessage(match ? match[1] : message);

    if (options.inlineDiff) {
      message += (0, _inline_diff2.default)(actual, expected, options.colorFns);
    } else {
      message += (0, _unified_diff2.default)(actual, expected, options.colorFns);
    }
  } else {
    message = options.colorFns.errorMessage(message);
  }

  if (stack) {
    stack = options.colorFns.errorStack(stack);
  }

  return message + stack;
}
},{"./helpers/inline_diff":8,"./helpers/stringify":10,"./helpers/type":11,"./helpers/unified_diff":12}],14:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/array/from"), __esModule: true };
},{"core-js/library/fn/array/from":66}],15:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/get-iterator"), __esModule: true };
},{"core-js/library/fn/get-iterator":67}],16:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/is-iterable"), __esModule: true };
},{"core-js/library/fn/is-iterable":68}],17:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/assign"), __esModule: true };
},{"core-js/library/fn/object/assign":69}],18:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/create"), __esModule: true };
},{"core-js/library/fn/object/create":70}],19:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/define-property"), __esModule: true };
},{"core-js/library/fn/object/define-property":71}],20:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/object/set-prototype-of"), __esModule: true };
},{"core-js/library/fn/object/set-prototype-of":72}],21:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/symbol"), __esModule: true };
},{"core-js/library/fn/symbol":73}],22:[function(require,module,exports){
module.exports = { "default": require("core-js/library/fn/symbol/iterator"), __esModule: true };
},{"core-js/library/fn/symbol/iterator":74}],23:[function(require,module,exports){
"use strict";

exports.__esModule = true;

exports.default = function (instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
};
},{}],24:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _defineProperty = require("../core-js/object/define-property");

var _defineProperty2 = _interopRequireDefault(_defineProperty);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function () {
  function defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      (0, _defineProperty2.default)(target, descriptor.key, descriptor);
    }
  }

  return function (Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();
},{"../core-js/object/define-property":19}],25:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _defineProperty = require("../core-js/object/define-property");

var _defineProperty2 = _interopRequireDefault(_defineProperty);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (obj, key, value) {
  if (key in obj) {
    (0, _defineProperty2.default)(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
};
},{"../core-js/object/define-property":19}],26:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _assign = require("../core-js/object/assign");

var _assign2 = _interopRequireDefault(_assign);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _assign2.default || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};
},{"../core-js/object/assign":17}],27:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _setPrototypeOf = require("../core-js/object/set-prototype-of");

var _setPrototypeOf2 = _interopRequireDefault(_setPrototypeOf);

var _create = require("../core-js/object/create");

var _create2 = _interopRequireDefault(_create);

var _typeof2 = require("../helpers/typeof");

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : (0, _typeof3.default)(superClass)));
  }

  subClass.prototype = (0, _create2.default)(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      enumerable: false,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf2.default ? (0, _setPrototypeOf2.default)(subClass, superClass) : subClass.__proto__ = superClass;
};
},{"../core-js/object/create":18,"../core-js/object/set-prototype-of":20,"../helpers/typeof":31}],28:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _typeof2 = require("../helpers/typeof");

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (self, call) {
  if (!self) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return call && ((typeof call === "undefined" ? "undefined" : (0, _typeof3.default)(call)) === "object" || typeof call === "function") ? call : self;
};
},{"../helpers/typeof":31}],29:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _isIterable2 = require("../core-js/is-iterable");

var _isIterable3 = _interopRequireDefault(_isIterable2);

var _getIterator2 = require("../core-js/get-iterator");

var _getIterator3 = _interopRequireDefault(_getIterator2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function () {
  function sliceIterator(arr, i) {
    var _arr = [];
    var _n = true;
    var _d = false;
    var _e = undefined;

    try {
      for (var _i = (0, _getIterator3.default)(arr), _s; !(_n = (_s = _i.next()).done); _n = true) {
        _arr.push(_s.value);

        if (i && _arr.length === i) break;
      }
    } catch (err) {
      _d = true;
      _e = err;
    } finally {
      try {
        if (!_n && _i["return"]) _i["return"]();
      } finally {
        if (_d) throw _e;
      }
    }

    return _arr;
  }

  return function (arr, i) {
    if (Array.isArray(arr)) {
      return arr;
    } else if ((0, _isIterable3.default)(Object(arr))) {
      return sliceIterator(arr, i);
    } else {
      throw new TypeError("Invalid attempt to destructure non-iterable instance");
    }
  };
}();
},{"../core-js/get-iterator":15,"../core-js/is-iterable":16}],30:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _from = require("../core-js/array/from");

var _from2 = _interopRequireDefault(_from);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (arr) {
  if (Array.isArray(arr)) {
    for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) {
      arr2[i] = arr[i];
    }

    return arr2;
  } else {
    return (0, _from2.default)(arr);
  }
};
},{"../core-js/array/from":14}],31:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _iterator = require("../core-js/symbol/iterator");

var _iterator2 = _interopRequireDefault(_iterator);

var _symbol = require("../core-js/symbol");

var _symbol2 = _interopRequireDefault(_symbol);

var _typeof = typeof _symbol2.default === "function" && typeof _iterator2.default === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj; };

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = typeof _symbol2.default === "function" && _typeof(_iterator2.default) === "symbol" ? function (obj) {
  return typeof obj === "undefined" ? "undefined" : _typeof(obj);
} : function (obj) {
  return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj === "undefined" ? "undefined" : _typeof(obj);
};
},{"../core-js/symbol":21,"../core-js/symbol/iterator":22}],32:[function(require,module,exports){
module.exports = require("regenerator-runtime");

},{"regenerator-runtime":271}],33:[function(require,module,exports){
'use strict';
module.exports = balanced;
function balanced(a, b, str) {
  if (a instanceof RegExp) a = maybeMatch(a, str);
  if (b instanceof RegExp) b = maybeMatch(b, str);

  var r = range(a, b, str);

  return r && {
    start: r[0],
    end: r[1],
    pre: str.slice(0, r[0]),
    body: str.slice(r[0] + a.length, r[1]),
    post: str.slice(r[1] + b.length)
  };
}

function maybeMatch(reg, str) {
  var m = str.match(reg);
  return m ? m[0] : null;
}

balanced.range = range;
function range(a, b, str) {
  var begs, beg, left, right, result;
  var ai = str.indexOf(a);
  var bi = str.indexOf(b, ai + 1);
  var i = ai;

  if (ai >= 0 && bi > 0) {
    begs = [];
    left = str.length;

    while (i >= 0 && !result) {
      if (i == ai) {
        begs.push(i);
        ai = str.indexOf(a, i + 1);
      } else if (begs.length == 1) {
        result = [ begs.pop(), bi ];
      } else {
        beg = begs.pop();
        if (beg < left) {
          left = beg;
          right = bi;
        }

        bi = str.indexOf(b, i + 1);
      }

      i = ai < bi && ai >= 0 ? ai : bi;
    }

    if (begs.length) {
      result = [ left, right ];
    }
  }

  return result;
}

},{}],34:[function(require,module,exports){
'use strict'

exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function placeHoldersCount (b64) {
  var len = b64.length
  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // the number of equal signs (place holders)
  // if there are two placeholders, than the two characters before it
  // represent one byte
  // if there is only one, then the three characters before it represent 2 bytes
  // this is just a cheap hack to not do indexOf twice
  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
}

function byteLength (b64) {
  // base64 is 4/3 + up to two characters of the original data
  return (b64.length * 3 / 4) - placeHoldersCount(b64)
}

function toByteArray (b64) {
  var i, l, tmp, placeHolders, arr
  var len = b64.length
  placeHolders = placeHoldersCount(b64)

  arr = new Arr((len * 3 / 4) - placeHolders)

  // if there are placeholders, only get up to the last complete 4 chars
  l = placeHolders > 0 ? len - 4 : len

  var L = 0

  for (i = 0; i < l; i += 4) {
    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
    arr[L++] = (tmp >> 16) & 0xFF
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = tmp & 0xFF
  }

  if (placeHolders === 2) {
    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[L++] = tmp & 0xFF
  } else if (placeHolders === 1) {
    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var output = ''
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    output += lookup[tmp >> 2]
    output += lookup[(tmp << 4) & 0x3F]
    output += '=='
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
    output += lookup[tmp >> 10]
    output += lookup[(tmp >> 4) & 0x3F]
    output += lookup[(tmp << 2) & 0x3F]
    output += '='
  }

  parts.push(output)

  return parts.join('')
}

},{}],35:[function(require,module,exports){
/*
 * Copyright (c) 2017. becke.ch - All Rights Reserved.
 * Use is subject to (MIT-style) License terms.
 * You may obtain a copy of the License at http://becke.ch/tool/becke-ch--regex--s0-v1/becke-ch--regex--s0-v1--license.txt
 */

/**
 * Created by raoul-becke--s0-v1 on 08.12.16. A JavaScript Regular Expression library, extending the standard RegExp
 * class with missing functionality.
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp-regular-expression-objects
 */

//Fixes issue for browsers (IE, Safari - respective in general WebKit based browsers e.g. JavaFX) not supporting
// JavaScript "Symbol"
Symbol = (typeof Symbol === "undefined") ? [] : Symbol;

/**
 * This class is an extension of the standard {@linkcode RegExp} class adding missing functionality.
 * For further descriptions see the corresponding overridden methods.
 * @param {string|RegExp} [pattern]
 * @param {string} [options]
 * @constructor
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp-regular-expression-objects
 */
function Regex(pattern, options) {
    var patternInstanceofRegExp = false;
    if (pattern instanceof RegExp) {
        pattern = pattern.source;
        patternInstanceofRegExp = true;
    }
    if (pattern) {
        this.regexGroupStructure = getRegexCompleteGroupingStructure(pattern);
        if (patternInstanceofRegExp) {
            this.source = pattern;
        } else {
            this.source = this.regexGroupStructure[2][0];
        }
        try {
            this.regex = new RegExp(this.regexGroupStructure[0][2], options);
        } catch (e) {
            new RegExp(pattern, options);
        }
    } else {
        this.regex = new RegExp(pattern, options);
        this.source = this.regex.source;
    }
    this.flags = this.regex.flags;
    this.global = this.regex.global;
    this.ignoreCase = this.regex.ignoreCase;
    this.multiline = this.regex.multiline;
    this.sticky = this.regex.sticky;
    this.unicode = this.regex.unicode;
    this.lastIndex = this.regex.lastIndex;
}

Regex.prototype = Object.create(RegExp.prototype, {
    flags: {
        value: null,
        enumerable: true,
        configurable: true,
        writable: true
    },
    global: {
        value: null,
        enumerable: true,
        configurable: true,
        writable: true
    },
    ignoreCase: {
        value: null,
        enumerable: true,
        configurable: true,
        writable: true
    },
    multiline: {
        value: null,
        enumerable: true,
        configurable: true,
        writable: true
    },
    source: {
        value: null,
        enumerable: true,
        configurable: true,
        writable: true
    },
    sticky: {
        value: null,
        enumerable: true,
        configurable: true,
        writable: true
    },
    unicode: {
        value: null,
        enumerable: true,
        configurable: true,
        writable: true
    }
});

Regex.prototype.constructor = Regex;

/**
 * Returns the same string format as {@linkcode RegExp#toString} for the initial pattern that was provided to the
 * {@linkcode Regex} constructor.<br>
 * The string is constructed as follows: "/"+{@linkcode Regex#source}+"/"+{@linkcode Regex#flags}
 * @return {string}
 */
Regex.prototype.toString = function () {
    return ('/' + this.source + '/' + this.flags);
}

/**
 * Simply invokes the inherited method {@linkcode RegExp#test}.
 * @param {string} [str]
 * @return {boolean}
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/test
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.test
 */
Regex.prototype.test = function (str) {
    return this.regex.test(str);
}

/**
 * Simply invokes the inherited method {@linkcode RegExp[Symbol.search]}.
 * @param {string} str
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/@@search
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype-@@search
 * @alias Regex.search
 */
Regex.prototype[Symbol.search] = function (str) {
    return this.regex[Symbol.search](str);
}

/**
 * Simply invokes the inherited method {@linkcode RegExp[Symbol.split]}.
 * @param {string} str
 * @param {number} [limit]
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/@@split
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype-@@split
 * @alias Regex.split
 */
Regex.prototype[Symbol.split] = function (str, limit) {
    return this.regex[Symbol.split](str);
}

/**
 * Full indexed exec method: Based on {@linkcode RegExp#exec} but instead of simply getting "index" in the return which
 * only tells the starting of the first group (0 group) we are getting "index[0..n]" which tells us the starting index
 * of each matching group.<br>
 * <code>
 * Syntax: <b>(new Regex(pattern, flags)).exec(string) = {string[0..n], index:number[0..n], input:string}</b><br>
 * Example:<br>
 * //Retrieve content and position of: opening-, closing tags and body content for: non-nested html-tags.
 * var pattern = '(&lt;([^ &gt;]+)[^&gt;]*&gt;)([^&lt;]*)(&lt;\\/\\2&gt;)';<br>
 * var str = '&lt;html&gt;&lt;code class="html plain"&gt;first&lt;/code&gt;&lt;div class="content"&gt;second&lt;/div&gt;&lt;/html&gt;';<br>
 * var regex = new Regex(pattern, 'g');<br>
 * var result = regex.exec(str);<br>
 * <br>
 * console.log(5 === result.length);<br>
 * console.log('&lt;code class="html plain"&gt;first&lt;/code&gt;'=== result[0]);<br>
 * console.log('&lt;code class="html plain"&gt;'=== result[1]);<br>
 * console.log('first'=== result[3]);<br>
 * console.log('&lt;/code&gt;'=== result[4]);<br>
 * console.log(5=== result.index.length);<br>
 * console.log(6=== result.index[0]);<br>
 * console.log(6=== result.index[1]);<br>
 * console.log(31=== result.index[3]);<br>
 * console.log(36=== result.index[4]);<br>
 * </code>
 * <br>
 * @param {string} [str]
 * @return {Object} {string[0..n], index:number[0..n], input:string}
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.exec
 */
Regex.prototype.exec = function (str) {
    var result = [];
    result.index = [];
    var resultRegex = this.regex.exec(str);
    this.lastIndex = this.regex.lastIndex;

    if (!resultRegex) {
        return resultRegex;
    }
    result[0] = resultRegex[0];
    result.index[0] = resultRegex.index;
    result.input = str;

    var execInternal = function (strPosition, regexGroupStructureChildren) {
        var currentStrPos = strPosition;
        for (var i = 0; i < regexGroupStructureChildren.length; i++) {
            var index = regexGroupStructureChildren[i][0];
            var originalIndex = regexGroupStructureChildren[i][1];
            if (originalIndex) {
                result[originalIndex] = resultRegex[index];
                if (typeof result[originalIndex] === "undefined") {
                    result.index[originalIndex] = undefined;
                } else {
                    result.index[originalIndex] = currentStrPos;
                }
            }
            if (regexGroupStructureChildren[i][3]) {
                execInternal(currentStrPos, regexGroupStructureChildren[i][3]);
            }
            if (typeof resultRegex[index] !== "undefined") {
                currentStrPos += resultRegex[index].length;
            }
        }
    };
    if (this.regexGroupStructure && this.regexGroupStructure[0][3]) {
        execInternal(resultRegex.index, this.regexGroupStructure[0][3]);
    }
    return result;
};

/**
 * Full detailed match. Based on {@linkcode RegExp[Symbol.match]} with some improvements regarding the return value. Analogue to the base
 * method {@linkcode RegExp[Symbol.match]} internally the method {@linkcode Regex#exec} is called. And there are 2
 * improvements related to this: First improvement is that {@linkcode Regex#exec} returns the index for all matching
 * groups and Second improvement is that we always return a 2-dimensional array independent of whether the global 'g'
 * flag is set or not. If the 'g' flag is not set then first dimension only contains one element which is the result
 * of {@linkcode Regex#exec} and if the flag is set the size of the first dimension equals the number of matches we had
 * and each match contains the {@linkcode Regex#exec} result for the corresponding execution.
 * @param [str] {String}
 * @return {Object} Array[{string[0..n], index:number[0..n], input:string}]
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/@@match
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype-@@match
 * @alias Regex.match
 */
Regex.prototype[Symbol.match] = function (str) {
    this.lastIndex = 0;
    this.regex.lastIndex = 0;

    var resultExec = this.exec(str);
    if (!resultExec) {
        return null;
    }

    var resultExecArray = [];

    while (resultExec) {
        resultExecArray.push(resultExec);
        if (resultExec[0].length === 0) {
            this.regex.lastIndex++;
        }
        if (!this.global) {
            break;
        }
        resultExec = this.exec(str);
    }

    this.lastIndex = 0;
    this.regex.lastIndex = 0;
    return resultExecArray;
}

/**
 * Group based search & replace. Based on {@linkcode Regex.prototype[Symbol.replace]} but instead of only being able to provide a
 * single "replacement substring" or "replacement function" for replacement of the entire match (aka matching-group[0])
 * we can provide an array [0..n] of "replacement substring" or "replacement function" elements for replacement of
 * each matching group [0..n].
 * <br>
 * Important: If we don't want a group to be replaced we provide the corresponding "replacement substring/function"
 * array element as undefined or null!
 * <br>
 * Important: If we provide a "replacement substring/function" for a parent group-element then (obviously) no
 * replacement is performed on its child-group-elements. E.g. if we provide a "replacement substring/function"
 * for group 0 then the entire match is replaced and (obviously) no replacement of the further child-groups
 * takes place!
 * <br>
 * <br>
 * <code>
 * Syntax: <b>(new Regex(pattern))[Symbol.replace](string, [array of replacement strings])</b><br>
 * Alternative Syntax: For browsers supporting "Symbol": Chrome & Firefox: string.replace(new Regex(pattern), [array of replacement strings])<br>
 * Example:<br>
 * //Convert plain text to html: Replace special characters (multiple spaces, tabs, ...) in plain text with their html "equivalent":<br>
 * var CONVERT_TEXT_SPECIAL_CHARACTER_TO_HTML_ESCAPE_CHARACTER_PATTERN = "( {2})|(\t)|(&)|(<)|(>)|(\n)";<br>
 * var CONVERT_TEXT_SPECIAL_CHARACTER_TO_HTML_ESCAPE_CHARACTER_PATTERN_REPLACE_STRING = [undefined, "&amp;nbsp;&amp;nbsp;", "&amp;emsp;", "&amp;amp;", "&amp;lt;", "&amp;gt;", "&lt;br&gt;"];<br>
 * var regex = new Regex(CONVERT_TEXT_SPECIAL_CHARACTER_TO_HTML_ESCAPE_CHARACTER_PATTERN, 'g');<br>
 * var result = regex[Symbol.replace](myPlainText,CONVERT_TEXT_SPECIAL_CHARACTER_TO_HTML_ESCAPE_CHARACTER_PATTERN_REPLACE_STRING);<br>
 * //Alternative Syntax: For browsers supporting "Symbol": Chrome & Firefox<br>
 * var resultAlternative = myPlainText.replace(regex,CONVERT_TEXT_SPECIAL_CHARACTER_TO_HTML_ESCAPE_CHARACTER_PATTERN_REPLACE_STRING);
 * </code>
 * <br>
 * <br>
 * Special (in addition to the standard search and replace): We support in the "new substring" as well $0 as replacement
 * pattern which is basically the entire match.
 * And accordingly for the "new function" we call it as well with p0 as parameter which is the entire match.
 *
 * @param [str] {String}
 * @param [newSubstringFunctionArray] {String[]|function[]|String|function}
 * @return {string}
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/@@replace
 * @see http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype-@@replace
 * @alias Regex.replace
 */
Regex.prototype[Symbol.replace] = function (str, newSubstringFunctionArray) {
    this.lastIndex = 0;
    this.regex.lastIndex = 0;
    if (!str) {
        return str;
    }
    // if (!newSubstringFunctionArray && newSubstringFunctionArray !== "") {
    //     return newSubstringFunctionArray;
    //     // newSubstringFunctionArray = '' + newSubstringFunctionArray;
    //     // console.log(newSubstringFunctionArray);
    // }

    var resultExec = this.exec(str);
    if (!resultExec) {
        return str;
    }

    if (!(newSubstringFunctionArray instanceof Array)) {
        newSubstringFunctionArray = [newSubstringFunctionArray];
    }

    var resultString = '';
    var resultStringPosition = 0;

    var computeSubstringFunction = function (newSubstringFunctionIndex) {
        var computedString = '';
        var charAt = '';
        var newSubstringFunction = newSubstringFunctionArray[newSubstringFunctionIndex];
        // if(!newSubstringFunction){
        //     newSubstringFunction += '';
        // }
        if (typeof newSubstringFunction === 'string') {
            for (var i = 0; i < newSubstringFunction.length; i++) {
                charAt = newSubstringFunction.charAt(i);
                if (charAt === '$') {
                    i++;
                    charAt = newSubstringFunction.charAt(i);
                    if (charAt === '$') {
                        computedString += '$';
                    } else if (charAt === '&') {
                        computedString += resultExec[newSubstringFunctionIndex];
                    } else if (charAt === '`') {
                        computedString += str.substring(0, resultExec.index[newSubstringFunctionIndex]);
                    } else if (charAt === "'") {
                        computedString += str.substring(resultExec.index[newSubstringFunctionIndex] + resultExec[newSubstringFunctionIndex].length);
                    } else if (charAt >= '0' && charAt <= '9') {
                        var int = charAt;
                        i++;
                        charAt = newSubstringFunction.charAt(i);
                        while (charAt >= '0' && charAt <= '9') {
                            int += charAt;
                            i++;
                            charAt = newSubstringFunction.charAt(i);
                        }
                        i--;
                        if (resultExec[int]) {
                            computedString += resultExec[int];
                        } else {
                            computedString += '$' + int;
                        }
                    } else {
                        //strange not sure whether this is correct - initially it was: computedString += charAt;
                        //but unit tests in NPM told differently!...
                        computedString += '$' + charAt;
                    }
                } else {
                    computedString += charAt;
                }
            }
        } else if (newSubstringFunction instanceof Function) {
            var args = [resultExec[newSubstringFunctionIndex]];
            for (var j = 0; j < resultExec.length; j++) {
                args.push(resultExec[j]);
            }
            for (var k = 0; j < resultExec.index.length; k++) {
                args.push(resultExec.index[k]);
            }
            args.push(str);
            computedString += newSubstringFunction.apply(this, args);
        }
        return computedString;
    }

    var traverseRegexGroupStructure = function (regexGroupStructureChildren) {
        for (var i = 0; i < regexGroupStructureChildren.length; i++) {
            var originalIndex = regexGroupStructureChildren[i][1];
            if (originalIndex) {
                if (newSubstringFunctionArray[originalIndex] || newSubstringFunctionArray[originalIndex] === "") {
                    if (resultExec[originalIndex] || resultExec[originalIndex] === "") {
                        resultString += str.substring(resultStringPosition, resultExec.index[originalIndex]) + computeSubstringFunction(originalIndex);
                        resultStringPosition = resultExec.index[originalIndex] + resultExec[originalIndex].length;
                    }
                } else if (regexGroupStructureChildren[i][3]) {
                    traverseRegexGroupStructure(regexGroupStructureChildren[i][3]);
                }
            } else {
                traverseRegexGroupStructure(regexGroupStructureChildren[i][3]);
            }
        }
    };
    while (resultExec) {
        if (newSubstringFunctionArray[0] || newSubstringFunctionArray[0] === "") {
            resultString += str.substring(resultStringPosition, resultExec.index[0]) + computeSubstringFunction(0);
            resultStringPosition = resultExec.index[0] + resultExec[0].length;
        } else if (this.regexGroupStructure && this.regexGroupStructure[0][3]) {
            traverseRegexGroupStructure(this.regexGroupStructure[0][3]);
        }
        // 20170415 - avoid infinite loop according to specification!
        if (resultExec[0].length === 0) {
            this.regex.lastIndex++;
        }
        if (!this.global) {
            break;
        }
        resultExec = this.exec(str);
    }

    this.lastIndex = 0;
    this.regex.lastIndex = 0;
    return resultString + str.substring(resultStringPosition, str.length);
}

/**
 * Takes the regular expression "regex" as input and puts all the non-grouped regex characters before a group
 * opening "(") into additional groups: "(xyz)" so in the end all relevant parts of the regular expression
 * (relevant in the sense that they are required to calculate the starting position of each group) are grouped.
 * AND finally returns the group structure of this regex:
 * [[index, originalIndex, 'regexForThisGroup', [[child01Index, child01OriginalIndex, 'regexForThisChild01Group', [...]], [child02Index, child02OriginalIndex, ..., [...]], ...]]].
 * The array elements are:
 * - index: This is the group index in the regular expression
 * - originalIndex: This is the groups index in the initial/original regular expression. "originalIndex" is "undefined"
 * if this group was the result of the group completion.
 * - regexForThisGroup: The regular expression of this group including its parantheses
 * - child-array: An array containing the child regular expressions
 *
 * SPECIAL: indexMap: The first element contains one more array element: [1]: indexMap: This array maps the
 * original-index [0..n] to the actual-index [0..m]
 *
 * SPECIAL: source: The first element contains one more array element: [2]: source: This is the initial regular
 * expression pattern and the only reason this is required is because in RegExp.source the slash "/" needs to be
 * escaped.
 *
 * Rule for group parsing: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
 * And: http://www.ecma-international.org/ecma-262/6.0/#sec-regexp-regular-expression-objects
 * The capturing groups are numbered according to the order of left parentheses of capturing groups, starting from 1.
 * The matched substring can be recalled from the resulting array's elements [1], ..., [n] or from the predefined
 * RegExp object's properties $1, ..., $9.
 * The good thing is that the regular expression rules around groups (and as well in most other parts of the regular
 * expression) did not change between the different ECMA Script versions respective did not have any impact on the
 * group parsing and therefore this function is compatible between the different browsers!
 *
 * @param {String} [regex]
 * @returns {*}
 */
function getRegexCompleteGroupingStructure(regex) {
    if (!regex) {
        console.error('The "regex" is empty! Returning empty array!');
        return [];
    }
    var indexMap = [];
    var source = [''];
    var containsBackReference = [];
    containsBackReference[0] = false;
    var getRegexCompleteGroupingStructureInternalResult = getRegexCompleteGroupingStructureInternal(regex, [0, 0, 0], true, indexMap, source, containsBackReference);
    if (containsBackReference[0]) {
        var fixIndexOnGroupingStructure = function (groupingStructureElement) {
            var regexForThisGroup = '';
            var charAt;
            for (var i = 0; i < groupingStructureElement[2].length; i++) {
                charAt = groupingStructureElement[2].charAt(i);
                regexForThisGroup += charAt;
                if (charAt === '\\') {
                    if (i + 1 === groupingStructureElement[2].length) {
                        continue;
                    }
                    i++;
                    charAt = groupingStructureElement[2].charAt(i);
                    var int = '';
                    while (charAt >= '0' && charAt <= '9') {
                        int += charAt;
                        i++;
                        charAt = groupingStructureElement[2].charAt(i);
                    }
                    if (int) {
                        regexForThisGroup += indexMap[int];
                        i--;
                    } else {
                        regexForThisGroup += charAt;
                    }
                    continue;
                }
                if (charAt === '[') {
                    if (i + 1 === groupingStructureElement[2].length) {
                        continue;
                    }
                    i++;
                    charAt = groupingStructureElement[2].charAt(i);
                    while ((charAt !== ']' || (groupingStructureElement[2].charAt(i - 1) === '\\' && groupingStructureElement[2].charAt(i - 2) !== '\\')) && i < groupingStructureElement[2].length) {
                        regexForThisGroup += charAt;
                        i++;
                        charAt = groupingStructureElement[2].charAt(i);
                    }
                    regexForThisGroup += charAt;
                    continue;
                }
            }
            groupingStructureElement[2] = regexForThisGroup;
            for (var j = 0; j < groupingStructureElement[3].length; j++) {
                fixIndexOnGroupingStructure(groupingStructureElement[3][j]);
            }
        }
        fixIndexOnGroupingStructure(getRegexCompleteGroupingStructureInternalResult);
    }
    return [getRegexCompleteGroupingStructureInternalResult, indexMap, source];
}
/**
 * Description see getRegexCompleteGroupingStructure.
 * @param regex
 * @param posIndexOrigIndex - this array has 3 values:
 * [0]:position: while iterating through the regular expression the parsing position is incremented starting at 0
 * [1]:index: the index of the current group we are parsing
 * [2]:original index: the original index the group had before we added additional groups
 * @param isCapturingGroup - tells us whether this group of characters enclosed within parantheses is a capturing group
 * or not. If not it could be a non capturing group (?:xyz) or an assertion which starts as well with a group bracket
 * "(" character but is followed with a "?=" or "?!" and tells us that this is not a capturing group
 * @param indexMap this array maps the original-index [0..n] to the actual-index [0..m]
 * @param source This is the initial regular expression pattern and the only reason this is required is because in
 * RegExp.source the slash "/" needs to be escaped.
 * @returns {*}
 */
function getRegexCompleteGroupingStructureInternal(regex, posIndexOrigIndex, isCapturingGroup, indexMap, source, containsBackReference) {
    var groupStructure;
    if (isCapturingGroup) {
        groupStructure = [posIndexOrigIndex[1], posIndexOrigIndex[2], '', []];
        indexMap[posIndexOrigIndex[2]] = posIndexOrigIndex[1];
    } else {
        groupStructure = [undefined, undefined, '', []];
    }
    var tmpStr = '';
    var charAt;
    for (posIndexOrigIndex[0]; posIndexOrigIndex[0] < regex.length; posIndexOrigIndex[0]++) {
        charAt = regex.charAt(posIndexOrigIndex[0]);
        if (charAt === '\\') {
            //handle escape character
            if (posIndexOrigIndex[0] + 1 === regex.length) {
                tmpStr += '\\';
                source[0] += '\\';
                continue;
            }
            posIndexOrigIndex[0]++;
            charAt = regex.charAt(posIndexOrigIndex[0]);
            //check whether we have a back-reference and adjust it according to the shift in the index-map
            var int = '';
            //Back references above \9 behave strange and different in every language. In
            // Java-Script they are treated as back-reference if the group is existing otherwise they are treated
            // as character escape sequence.
            while (charAt >= '0' && charAt <= '9') {
                int += charAt;
                posIndexOrigIndex[0]++;
                charAt = regex.charAt(posIndexOrigIndex[0]);
            }
            if (int) {
                if (indexMap[int]) {
                    //if a group exists then back-reference to the group
                    //20170416 - bug the index map can change later if additional surrounding paranthesis are added
                    //Therefore this calculation needs to be done in the end!
                    //tmpStr += '\\' + indexMap[int];
                    tmpStr += '\\' + int;
                    containsBackReference[0] = true;
                } else {
                    if (int.indexOf('8') >= 0 || int.indexOf('9') >= 0) {
                        //if it is a non octal digit then treat it as simple number
                        tmpStr += int;
                    } else {
                        //otherwise it is a character escape
                        tmpStr += '\\' + 'x' + ("0" + (parseInt(int, 8).toString(16))).slice(-2).toUpperCase();
                    }
                }
                source[0] += '\\' + int;
                posIndexOrigIndex[0]--;
            } else {
                tmpStr += '\\' + charAt;
                source[0] += '\\' + charAt;
            }
            continue;
        }
        if (charAt === '[') {
            //parse character set
            tmpStr += '[';
            source[0] += '[';
            if (posIndexOrigIndex[0] + 1 === regex.length) {
                continue;
            }
            posIndexOrigIndex[0]++;
            charAt = regex.charAt(posIndexOrigIndex[0]);
            while ((charAt !== ']' || (regex.charAt(posIndexOrigIndex[0] - 1) === '\\' && regex.charAt(posIndexOrigIndex[0] - 2) !== '\\')) && posIndexOrigIndex[0] < regex.length) {
                tmpStr += charAt;
                source[0] += charAt;
                posIndexOrigIndex[0]++;
                charAt = regex.charAt(posIndexOrigIndex[0]);
            }
            tmpStr += charAt;
            source[0] += charAt;
            continue;
        }
        if (charAt === '|') {
            //finalize pending tmp group string if any
            //20170327 - this is not necessary
            // if (tmpStr && groupStructure[3].length > 0) {
            //     //complete grouping: put trailing and pending characters sequences into groups
            //     posIndexOrigIndex[1]++;
            //     tmpStr = '(' + tmpStr + ')';
            //     groupStructure[3].push([posIndexOrigIndex[1], , tmpStr, []]);
            // }
            groupStructure[2] += tmpStr + '|';
            tmpStr = '';
            source[0] += '|';
            continue;
        }
        if (charAt === ')') {
            //handle group ending
            //20170327 - not required to group here because it is already contained in a parent group
            // if (tmpStr && groupStructure[3].length > 0) {
            //     //complete grouping: put trailing and pending characters sequences into groups
            //     posIndexOrigIndex[1]++;
            //     tmpStr = '(' + tmpStr + ')';
            //     groupStructure[3].push([posIndexOrigIndex[1], , tmpStr, []]);
            // }
            groupStructure[2] += tmpStr + ')';
            source[0] += ')';
            return groupStructure;
        }
        if (charAt === '(') {
            //handle group start
            if (tmpStr) {
                //complete grouping: put trailing and pending characters sequences into non remembering groups
                posIndexOrigIndex[1]++;
                tmpStr = '(' + tmpStr + ')';
                groupStructure[3].push([posIndexOrigIndex[1], undefined, tmpStr, []]);
            }
            posIndexOrigIndex[0]++;
            var regexGroupStructureInternal;
            var idx = posIndexOrigIndex[1] + 1;
            isCapturingGroup = true;
            // check whether group is an assertion
            if (regex.charAt(posIndexOrigIndex[0]) === '?' && posIndexOrigIndex[0] + 1 < regex.length && (regex.charAt(posIndexOrigIndex[0] + 1) === '=' || regex.charAt(posIndexOrigIndex[0] + 1) === '!' || regex.charAt(posIndexOrigIndex[0] + 1) === ':')) {
                //Handle assertion
                posIndexOrigIndex[0]++;
                var assertionChar = regex.charAt(posIndexOrigIndex[0]);
                posIndexOrigIndex[0]++;
                //we only set isCapturingGroup to false in case it is a non capturing group. For assertion groups
                //i.e. positive-/negative-lookahead the parser steps back after the parsing of the lookahead and
                //therefore (see if statement further down) we don't need to set the assertion groups into additional
                //paranthesis.
                //In other words at the end of a lookahead or a lookbehind, the regex engine hasn't moved on the string.
                // You can chain three more lookaheads after the first, and the regex engine still won't move.
                if (assertionChar === ':') {
                    isCapturingGroup = false;
                }
                source[0] += '(?' + assertionChar;
                regexGroupStructureInternal = getRegexCompleteGroupingStructureInternal(regex, posIndexOrigIndex, false, indexMap, source, containsBackReference);
                regexGroupStructureInternal[2] = '(?' + assertionChar + regexGroupStructureInternal[2];
            } else {
                posIndexOrigIndex[1]++;
                posIndexOrigIndex[2]++;
                source[0] += '(';
                regexGroupStructureInternal = getRegexCompleteGroupingStructureInternal(regex, posIndexOrigIndex, true, indexMap, source, containsBackReference);
                regexGroupStructureInternal[2] = '(' + regexGroupStructureInternal[2];
            }

            //20170327 - special handling if we have a capturing group with a quantifier then we need to
            //put the quantified group into additional paranthesis otherwise only the first group matches!
            var quantifierStart = posIndexOrigIndex[0];
            var quantifierString = '';
            if (posIndexOrigIndex[0] + 1 < regex.length) {
                //parse quantifier
                charAt = regex.charAt(posIndexOrigIndex[0] + 1);
                if (charAt === '*') {
                    posIndexOrigIndex[0]++;
                    quantifierString = '*';
                } else if (charAt === '+') {
                    posIndexOrigIndex[0]++;
                    quantifierString = '+';
                } else if (charAt === '?') {
                    posIndexOrigIndex[0]++;
                    quantifierString = '?';
                } else if (charAt === '{') {
                    posIndexOrigIndex[0]++;
                    quantifierString = '{';
                    posIndexOrigIndex[0]++;
                    charAt = regex.charAt(posIndexOrigIndex[0]);
                    while (charAt >= '0' && charAt <= '9' && posIndexOrigIndex[0] < regex.length) {
                        quantifierString += charAt;
                        posIndexOrigIndex[0]++;
                        charAt = regex.charAt(posIndexOrigIndex[0]);
                    }
                    if (charAt === '}') {
                        quantifierString += '}';
                    } else {
                        if (charAt === ',') {
                            quantifierString += ',';
                            posIndexOrigIndex[0]++;
                            charAt = regex.charAt(posIndexOrigIndex[0]);
                            while (charAt >= '0' && charAt <= '9' && posIndexOrigIndex[0] < regex.length) {
                                quantifierString += charAt;
                                posIndexOrigIndex[0]++;
                                charAt = regex.charAt(posIndexOrigIndex[0]);
                            }
                            if (charAt === '}') {
                                quantifierString += '}';
                            } else {
                                quantifierString = '';
                            }
                        } else {
                            quantifierString = '';
                        }
                    }
                }
                if (quantifierString.length > 0) {
                    regexGroupStructureInternal[2] += quantifierString;
                    source[0] += quantifierString;
                    if (regex.charAt(posIndexOrigIndex[0] + 1) === '?') {
                        posIndexOrigIndex[0]++;
                        regexGroupStructureInternal[2] += '?';
                        source[0] += '?';
                    }
                } else {
                    posIndexOrigIndex[0] = quantifierStart;
                }
            }
            //20170327 - special handling if we have a non capturing group then we need to put this group into
            // additional paranthesis otherwise we don't know the size of the group !
            if (quantifierString.length > 0 || !isCapturingGroup) {
                incrementRegexGroupStructureIndex(regexGroupStructureInternal, indexMap);
                regexGroupStructureInternal = [idx, undefined, '(' + regexGroupStructureInternal[2] + ')', [regexGroupStructureInternal]];
                posIndexOrigIndex[1]++;
            }

            groupStructure[2] += tmpStr + regexGroupStructureInternal[2];
            groupStructure[3].push(regexGroupStructureInternal);
            tmpStr = '';
        } else {
            charAt = regex.charAt(posIndexOrigIndex[0]);
            tmpStr += charAt;
            if (charAt === '/') {
                source[0] += '\\' + charAt;
            } else {
                source[0] += charAt;
            }
        }
    }
    //we only get here in the top-most iteration i.e. for matching group 0 which has no enclosing paranthesis
    groupStructure[2] += tmpStr;
    return groupStructure;
}

function incrementRegexGroupStructureIndex(regexGroupStructure, indexMap) {
    if (regexGroupStructure[0]) {
        regexGroupStructure[0]++;
        if (regexGroupStructure[1]) {
            indexMap[regexGroupStructure[1]] = regexGroupStructure[0];
        }
    }
    for (var i = 0; i < regexGroupStructure[3].length; i++) {
        incrementRegexGroupStructureIndex(regexGroupStructure[3][i], indexMap);
    }
}

function initialize() {
    if (!(typeof module === "undefined")) {
        module.exports = Regex;
    }
}
initialize();
},{}],36:[function(require,module,exports){
(function (process,global){
/* @preserve
 * The MIT License (MIT)
 * 
 * Copyright (c) 2013-2017 Petka Antonov
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */
/**
 * bluebird build version 3.5.1
 * Features enabled: core, race, call_get, generators, map, nodeify, promisify, props, reduce, settle, some, using, timers, filter, any, each
*/
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.Promise=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof _dereq_=="function"&&_dereq_;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof _dereq_=="function"&&_dereq_;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise) {
var SomePromiseArray = Promise._SomePromiseArray;
function any(promises) {
    var ret = new SomePromiseArray(promises);
    var promise = ret.promise();
    ret.setHowMany(1);
    ret.setUnwrap();
    ret.init();
    return promise;
}

Promise.any = function (promises) {
    return any(promises);
};

Promise.prototype.any = function () {
    return any(this);
};

};

},{}],2:[function(_dereq_,module,exports){
"use strict";
var firstLineError;
try {throw new Error(); } catch (e) {firstLineError = e;}
var schedule = _dereq_("./schedule");
var Queue = _dereq_("./queue");
var util = _dereq_("./util");

function Async() {
    this._customScheduler = false;
    this._isTickUsed = false;
    this._lateQueue = new Queue(16);
    this._normalQueue = new Queue(16);
    this._haveDrainedQueues = false;
    this._trampolineEnabled = true;
    var self = this;
    this.drainQueues = function () {
        self._drainQueues();
    };
    this._schedule = schedule;
}

Async.prototype.setScheduler = function(fn) {
    var prev = this._schedule;
    this._schedule = fn;
    this._customScheduler = true;
    return prev;
};

Async.prototype.hasCustomScheduler = function() {
    return this._customScheduler;
};

Async.prototype.enableTrampoline = function() {
    this._trampolineEnabled = true;
};

Async.prototype.disableTrampolineIfNecessary = function() {
    if (util.hasDevTools) {
        this._trampolineEnabled = false;
    }
};

Async.prototype.haveItemsQueued = function () {
    return this._isTickUsed || this._haveDrainedQueues;
};


Async.prototype.fatalError = function(e, isNode) {
    if (isNode) {
        process.stderr.write("Fatal " + (e instanceof Error ? e.stack : e) +
            "\n");
        process.exit(2);
    } else {
        this.throwLater(e);
    }
};

Async.prototype.throwLater = function(fn, arg) {
    if (arguments.length === 1) {
        arg = fn;
        fn = function () { throw arg; };
    }
    if (typeof setTimeout !== "undefined") {
        setTimeout(function() {
            fn(arg);
        }, 0);
    } else try {
        this._schedule(function() {
            fn(arg);
        });
    } catch (e) {
        throw new Error("No async scheduler available\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
};

function AsyncInvokeLater(fn, receiver, arg) {
    this._lateQueue.push(fn, receiver, arg);
    this._queueTick();
}

function AsyncInvoke(fn, receiver, arg) {
    this._normalQueue.push(fn, receiver, arg);
    this._queueTick();
}

function AsyncSettlePromises(promise) {
    this._normalQueue._pushOne(promise);
    this._queueTick();
}

if (!util.hasDevTools) {
    Async.prototype.invokeLater = AsyncInvokeLater;
    Async.prototype.invoke = AsyncInvoke;
    Async.prototype.settlePromises = AsyncSettlePromises;
} else {
    Async.prototype.invokeLater = function (fn, receiver, arg) {
        if (this._trampolineEnabled) {
            AsyncInvokeLater.call(this, fn, receiver, arg);
        } else {
            this._schedule(function() {
                setTimeout(function() {
                    fn.call(receiver, arg);
                }, 100);
            });
        }
    };

    Async.prototype.invoke = function (fn, receiver, arg) {
        if (this._trampolineEnabled) {
            AsyncInvoke.call(this, fn, receiver, arg);
        } else {
            this._schedule(function() {
                fn.call(receiver, arg);
            });
        }
    };

    Async.prototype.settlePromises = function(promise) {
        if (this._trampolineEnabled) {
            AsyncSettlePromises.call(this, promise);
        } else {
            this._schedule(function() {
                promise._settlePromises();
            });
        }
    };
}

Async.prototype._drainQueue = function(queue) {
    while (queue.length() > 0) {
        var fn = queue.shift();
        if (typeof fn !== "function") {
            fn._settlePromises();
            continue;
        }
        var receiver = queue.shift();
        var arg = queue.shift();
        fn.call(receiver, arg);
    }
};

Async.prototype._drainQueues = function () {
    this._drainQueue(this._normalQueue);
    this._reset();
    this._haveDrainedQueues = true;
    this._drainQueue(this._lateQueue);
};

Async.prototype._queueTick = function () {
    if (!this._isTickUsed) {
        this._isTickUsed = true;
        this._schedule(this.drainQueues);
    }
};

Async.prototype._reset = function () {
    this._isTickUsed = false;
};

module.exports = Async;
module.exports.firstLineError = firstLineError;

},{"./queue":26,"./schedule":29,"./util":36}],3:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, INTERNAL, tryConvertToPromise, debug) {
var calledBind = false;
var rejectThis = function(_, e) {
    this._reject(e);
};

var targetRejected = function(e, context) {
    context.promiseRejectionQueued = true;
    context.bindingPromise._then(rejectThis, rejectThis, null, this, e);
};

var bindingResolved = function(thisArg, context) {
    if (((this._bitField & 50397184) === 0)) {
        this._resolveCallback(context.target);
    }
};

var bindingRejected = function(e, context) {
    if (!context.promiseRejectionQueued) this._reject(e);
};

Promise.prototype.bind = function (thisArg) {
    if (!calledBind) {
        calledBind = true;
        Promise.prototype._propagateFrom = debug.propagateFromFunction();
        Promise.prototype._boundValue = debug.boundValueFunction();
    }
    var maybePromise = tryConvertToPromise(thisArg);
    var ret = new Promise(INTERNAL);
    ret._propagateFrom(this, 1);
    var target = this._target();
    ret._setBoundTo(maybePromise);
    if (maybePromise instanceof Promise) {
        var context = {
            promiseRejectionQueued: false,
            promise: ret,
            target: target,
            bindingPromise: maybePromise
        };
        target._then(INTERNAL, targetRejected, undefined, ret, context);
        maybePromise._then(
            bindingResolved, bindingRejected, undefined, ret, context);
        ret._setOnCancel(maybePromise);
    } else {
        ret._resolveCallback(target);
    }
    return ret;
};

Promise.prototype._setBoundTo = function (obj) {
    if (obj !== undefined) {
        this._bitField = this._bitField | 2097152;
        this._boundTo = obj;
    } else {
        this._bitField = this._bitField & (~2097152);
    }
};

Promise.prototype._isBound = function () {
    return (this._bitField & 2097152) === 2097152;
};

Promise.bind = function (thisArg, value) {
    return Promise.resolve(value).bind(thisArg);
};
};

},{}],4:[function(_dereq_,module,exports){
"use strict";
var old;
if (typeof Promise !== "undefined") old = Promise;
function noConflict() {
    try { if (Promise === bluebird) Promise = old; }
    catch (e) {}
    return bluebird;
}
var bluebird = _dereq_("./promise")();
bluebird.noConflict = noConflict;
module.exports = bluebird;

},{"./promise":22}],5:[function(_dereq_,module,exports){
"use strict";
var cr = Object.create;
if (cr) {
    var callerCache = cr(null);
    var getterCache = cr(null);
    callerCache[" size"] = getterCache[" size"] = 0;
}

module.exports = function(Promise) {
var util = _dereq_("./util");
var canEvaluate = util.canEvaluate;
var isIdentifier = util.isIdentifier;

var getMethodCaller;
var getGetter;
if (!true) {
var makeMethodCaller = function (methodName) {
    return new Function("ensureMethod", "                                    \n\
        return function(obj) {                                               \n\
            'use strict'                                                     \n\
            var len = this.length;                                           \n\
            ensureMethod(obj, 'methodName');                                 \n\
            switch(len) {                                                    \n\
                case 1: return obj.methodName(this[0]);                      \n\
                case 2: return obj.methodName(this[0], this[1]);             \n\
                case 3: return obj.methodName(this[0], this[1], this[2]);    \n\
                case 0: return obj.methodName();                             \n\
                default:                                                     \n\
                    return obj.methodName.apply(obj, this);                  \n\
            }                                                                \n\
        };                                                                   \n\
        ".replace(/methodName/g, methodName))(ensureMethod);
};

var makeGetter = function (propertyName) {
    return new Function("obj", "                                             \n\
        'use strict';                                                        \n\
        return obj.propertyName;                                             \n\
        ".replace("propertyName", propertyName));
};

var getCompiled = function(name, compiler, cache) {
    var ret = cache[name];
    if (typeof ret !== "function") {
        if (!isIdentifier(name)) {
            return null;
        }
        ret = compiler(name);
        cache[name] = ret;
        cache[" size"]++;
        if (cache[" size"] > 512) {
            var keys = Object.keys(cache);
            for (var i = 0; i < 256; ++i) delete cache[keys[i]];
            cache[" size"] = keys.length - 256;
        }
    }
    return ret;
};

getMethodCaller = function(name) {
    return getCompiled(name, makeMethodCaller, callerCache);
};

getGetter = function(name) {
    return getCompiled(name, makeGetter, getterCache);
};
}

function ensureMethod(obj, methodName) {
    var fn;
    if (obj != null) fn = obj[methodName];
    if (typeof fn !== "function") {
        var message = "Object " + util.classString(obj) + " has no method '" +
            util.toString(methodName) + "'";
        throw new Promise.TypeError(message);
    }
    return fn;
}

function caller(obj) {
    var methodName = this.pop();
    var fn = ensureMethod(obj, methodName);
    return fn.apply(obj, this);
}
Promise.prototype.call = function (methodName) {
    var args = [].slice.call(arguments, 1);;
    if (!true) {
        if (canEvaluate) {
            var maybeCaller = getMethodCaller(methodName);
            if (maybeCaller !== null) {
                return this._then(
                    maybeCaller, undefined, undefined, args, undefined);
            }
        }
    }
    args.push(methodName);
    return this._then(caller, undefined, undefined, args, undefined);
};

function namedGetter(obj) {
    return obj[this];
}
function indexedGetter(obj) {
    var index = +this;
    if (index < 0) index = Math.max(0, index + obj.length);
    return obj[index];
}
Promise.prototype.get = function (propertyName) {
    var isIndex = (typeof propertyName === "number");
    var getter;
    if (!isIndex) {
        if (canEvaluate) {
            var maybeGetter = getGetter(propertyName);
            getter = maybeGetter !== null ? maybeGetter : namedGetter;
        } else {
            getter = namedGetter;
        }
    } else {
        getter = indexedGetter;
    }
    return this._then(getter, undefined, undefined, propertyName, undefined);
};
};

},{"./util":36}],6:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, PromiseArray, apiRejection, debug) {
var util = _dereq_("./util");
var tryCatch = util.tryCatch;
var errorObj = util.errorObj;
var async = Promise._async;

Promise.prototype["break"] = Promise.prototype.cancel = function() {
    if (!debug.cancellation()) return this._warn("cancellation is disabled");

    var promise = this;
    var child = promise;
    while (promise._isCancellable()) {
        if (!promise._cancelBy(child)) {
            if (child._isFollowing()) {
                child._followee().cancel();
            } else {
                child._cancelBranched();
            }
            break;
        }

        var parent = promise._cancellationParent;
        if (parent == null || !parent._isCancellable()) {
            if (promise._isFollowing()) {
                promise._followee().cancel();
            } else {
                promise._cancelBranched();
            }
            break;
        } else {
            if (promise._isFollowing()) promise._followee().cancel();
            promise._setWillBeCancelled();
            child = promise;
            promise = parent;
        }
    }
};

Promise.prototype._branchHasCancelled = function() {
    this._branchesRemainingToCancel--;
};

Promise.prototype._enoughBranchesHaveCancelled = function() {
    return this._branchesRemainingToCancel === undefined ||
           this._branchesRemainingToCancel <= 0;
};

Promise.prototype._cancelBy = function(canceller) {
    if (canceller === this) {
        this._branchesRemainingToCancel = 0;
        this._invokeOnCancel();
        return true;
    } else {
        this._branchHasCancelled();
        if (this._enoughBranchesHaveCancelled()) {
            this._invokeOnCancel();
            return true;
        }
    }
    return false;
};

Promise.prototype._cancelBranched = function() {
    if (this._enoughBranchesHaveCancelled()) {
        this._cancel();
    }
};

Promise.prototype._cancel = function() {
    if (!this._isCancellable()) return;
    this._setCancelled();
    async.invoke(this._cancelPromises, this, undefined);
};

Promise.prototype._cancelPromises = function() {
    if (this._length() > 0) this._settlePromises();
};

Promise.prototype._unsetOnCancel = function() {
    this._onCancelField = undefined;
};

Promise.prototype._isCancellable = function() {
    return this.isPending() && !this._isCancelled();
};

Promise.prototype.isCancellable = function() {
    return this.isPending() && !this.isCancelled();
};

Promise.prototype._doInvokeOnCancel = function(onCancelCallback, internalOnly) {
    if (util.isArray(onCancelCallback)) {
        for (var i = 0; i < onCancelCallback.length; ++i) {
            this._doInvokeOnCancel(onCancelCallback[i], internalOnly);
        }
    } else if (onCancelCallback !== undefined) {
        if (typeof onCancelCallback === "function") {
            if (!internalOnly) {
                var e = tryCatch(onCancelCallback).call(this._boundValue());
                if (e === errorObj) {
                    this._attachExtraTrace(e.e);
                    async.throwLater(e.e);
                }
            }
        } else {
            onCancelCallback._resultCancelled(this);
        }
    }
};

Promise.prototype._invokeOnCancel = function() {
    var onCancelCallback = this._onCancel();
    this._unsetOnCancel();
    async.invoke(this._doInvokeOnCancel, this, onCancelCallback);
};

Promise.prototype._invokeInternalOnCancel = function() {
    if (this._isCancellable()) {
        this._doInvokeOnCancel(this._onCancel(), true);
        this._unsetOnCancel();
    }
};

Promise.prototype._resultCancelled = function() {
    this.cancel();
};

};

},{"./util":36}],7:[function(_dereq_,module,exports){
"use strict";
module.exports = function(NEXT_FILTER) {
var util = _dereq_("./util");
var getKeys = _dereq_("./es5").keys;
var tryCatch = util.tryCatch;
var errorObj = util.errorObj;

function catchFilter(instances, cb, promise) {
    return function(e) {
        var boundTo = promise._boundValue();
        predicateLoop: for (var i = 0; i < instances.length; ++i) {
            var item = instances[i];

            if (item === Error ||
                (item != null && item.prototype instanceof Error)) {
                if (e instanceof item) {
                    return tryCatch(cb).call(boundTo, e);
                }
            } else if (typeof item === "function") {
                var matchesPredicate = tryCatch(item).call(boundTo, e);
                if (matchesPredicate === errorObj) {
                    return matchesPredicate;
                } else if (matchesPredicate) {
                    return tryCatch(cb).call(boundTo, e);
                }
            } else if (util.isObject(e)) {
                var keys = getKeys(item);
                for (var j = 0; j < keys.length; ++j) {
                    var key = keys[j];
                    if (item[key] != e[key]) {
                        continue predicateLoop;
                    }
                }
                return tryCatch(cb).call(boundTo, e);
            }
        }
        return NEXT_FILTER;
    };
}

return catchFilter;
};

},{"./es5":13,"./util":36}],8:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise) {
var longStackTraces = false;
var contextStack = [];

Promise.prototype._promiseCreated = function() {};
Promise.prototype._pushContext = function() {};
Promise.prototype._popContext = function() {return null;};
Promise._peekContext = Promise.prototype._peekContext = function() {};

function Context() {
    this._trace = new Context.CapturedTrace(peekContext());
}
Context.prototype._pushContext = function () {
    if (this._trace !== undefined) {
        this._trace._promiseCreated = null;
        contextStack.push(this._trace);
    }
};

Context.prototype._popContext = function () {
    if (this._trace !== undefined) {
        var trace = contextStack.pop();
        var ret = trace._promiseCreated;
        trace._promiseCreated = null;
        return ret;
    }
    return null;
};

function createContext() {
    if (longStackTraces) return new Context();
}

function peekContext() {
    var lastIndex = contextStack.length - 1;
    if (lastIndex >= 0) {
        return contextStack[lastIndex];
    }
    return undefined;
}
Context.CapturedTrace = null;
Context.create = createContext;
Context.deactivateLongStackTraces = function() {};
Context.activateLongStackTraces = function() {
    var Promise_pushContext = Promise.prototype._pushContext;
    var Promise_popContext = Promise.prototype._popContext;
    var Promise_PeekContext = Promise._peekContext;
    var Promise_peekContext = Promise.prototype._peekContext;
    var Promise_promiseCreated = Promise.prototype._promiseCreated;
    Context.deactivateLongStackTraces = function() {
        Promise.prototype._pushContext = Promise_pushContext;
        Promise.prototype._popContext = Promise_popContext;
        Promise._peekContext = Promise_PeekContext;
        Promise.prototype._peekContext = Promise_peekContext;
        Promise.prototype._promiseCreated = Promise_promiseCreated;
        longStackTraces = false;
    };
    longStackTraces = true;
    Promise.prototype._pushContext = Context.prototype._pushContext;
    Promise.prototype._popContext = Context.prototype._popContext;
    Promise._peekContext = Promise.prototype._peekContext = peekContext;
    Promise.prototype._promiseCreated = function() {
        var ctx = this._peekContext();
        if (ctx && ctx._promiseCreated == null) ctx._promiseCreated = this;
    };
};
return Context;
};

},{}],9:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, Context) {
var getDomain = Promise._getDomain;
var async = Promise._async;
var Warning = _dereq_("./errors").Warning;
var util = _dereq_("./util");
var canAttachTrace = util.canAttachTrace;
var unhandledRejectionHandled;
var possiblyUnhandledRejection;
var bluebirdFramePattern =
    /[\\\/]bluebird[\\\/]js[\\\/](release|debug|instrumented)/;
var nodeFramePattern = /\((?:timers\.js):\d+:\d+\)/;
var parseLinePattern = /[\/<\(](.+?):(\d+):(\d+)\)?\s*$/;
var stackFramePattern = null;
var formatStack = null;
var indentStackFrames = false;
var printWarning;
var debugging = !!(util.env("BLUEBIRD_DEBUG") != 0 &&
                        (true ||
                         util.env("BLUEBIRD_DEBUG") ||
                         util.env("NODE_ENV") === "development"));

var warnings = !!(util.env("BLUEBIRD_WARNINGS") != 0 &&
    (debugging || util.env("BLUEBIRD_WARNINGS")));

var longStackTraces = !!(util.env("BLUEBIRD_LONG_STACK_TRACES") != 0 &&
    (debugging || util.env("BLUEBIRD_LONG_STACK_TRACES")));

var wForgottenReturn = util.env("BLUEBIRD_W_FORGOTTEN_RETURN") != 0 &&
    (warnings || !!util.env("BLUEBIRD_W_FORGOTTEN_RETURN"));

Promise.prototype.suppressUnhandledRejections = function() {
    var target = this._target();
    target._bitField = ((target._bitField & (~1048576)) |
                      524288);
};

Promise.prototype._ensurePossibleRejectionHandled = function () {
    if ((this._bitField & 524288) !== 0) return;
    this._setRejectionIsUnhandled();
    var self = this;
    setTimeout(function() {
        self._notifyUnhandledRejection();
    }, 1);
};

Promise.prototype._notifyUnhandledRejectionIsHandled = function () {
    fireRejectionEvent("rejectionHandled",
                                  unhandledRejectionHandled, undefined, this);
};

Promise.prototype._setReturnedNonUndefined = function() {
    this._bitField = this._bitField | 268435456;
};

Promise.prototype._returnedNonUndefined = function() {
    return (this._bitField & 268435456) !== 0;
};

Promise.prototype._notifyUnhandledRejection = function () {
    if (this._isRejectionUnhandled()) {
        var reason = this._settledValue();
        this._setUnhandledRejectionIsNotified();
        fireRejectionEvent("unhandledRejection",
                                      possiblyUnhandledRejection, reason, this);
    }
};

Promise.prototype._setUnhandledRejectionIsNotified = function () {
    this._bitField = this._bitField | 262144;
};

Promise.prototype._unsetUnhandledRejectionIsNotified = function () {
    this._bitField = this._bitField & (~262144);
};

Promise.prototype._isUnhandledRejectionNotified = function () {
    return (this._bitField & 262144) > 0;
};

Promise.prototype._setRejectionIsUnhandled = function () {
    this._bitField = this._bitField | 1048576;
};

Promise.prototype._unsetRejectionIsUnhandled = function () {
    this._bitField = this._bitField & (~1048576);
    if (this._isUnhandledRejectionNotified()) {
        this._unsetUnhandledRejectionIsNotified();
        this._notifyUnhandledRejectionIsHandled();
    }
};

Promise.prototype._isRejectionUnhandled = function () {
    return (this._bitField & 1048576) > 0;
};

Promise.prototype._warn = function(message, shouldUseOwnTrace, promise) {
    return warn(message, shouldUseOwnTrace, promise || this);
};

Promise.onPossiblyUnhandledRejection = function (fn) {
    var domain = getDomain();
    possiblyUnhandledRejection =
        typeof fn === "function" ? (domain === null ?
                                            fn : util.domainBind(domain, fn))
                                 : undefined;
};

Promise.onUnhandledRejectionHandled = function (fn) {
    var domain = getDomain();
    unhandledRejectionHandled =
        typeof fn === "function" ? (domain === null ?
                                            fn : util.domainBind(domain, fn))
                                 : undefined;
};

var disableLongStackTraces = function() {};
Promise.longStackTraces = function () {
    if (async.haveItemsQueued() && !config.longStackTraces) {
        throw new Error("cannot enable long stack traces after promises have been created\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    if (!config.longStackTraces && longStackTracesIsSupported()) {
        var Promise_captureStackTrace = Promise.prototype._captureStackTrace;
        var Promise_attachExtraTrace = Promise.prototype._attachExtraTrace;
        config.longStackTraces = true;
        disableLongStackTraces = function() {
            if (async.haveItemsQueued() && !config.longStackTraces) {
                throw new Error("cannot enable long stack traces after promises have been created\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
            }
            Promise.prototype._captureStackTrace = Promise_captureStackTrace;
            Promise.prototype._attachExtraTrace = Promise_attachExtraTrace;
            Context.deactivateLongStackTraces();
            async.enableTrampoline();
            config.longStackTraces = false;
        };
        Promise.prototype._captureStackTrace = longStackTracesCaptureStackTrace;
        Promise.prototype._attachExtraTrace = longStackTracesAttachExtraTrace;
        Context.activateLongStackTraces();
        async.disableTrampolineIfNecessary();
    }
};

Promise.hasLongStackTraces = function () {
    return config.longStackTraces && longStackTracesIsSupported();
};

var fireDomEvent = (function() {
    try {
        if (typeof CustomEvent === "function") {
            var event = new CustomEvent("CustomEvent");
            util.global.dispatchEvent(event);
            return function(name, event) {
                var domEvent = new CustomEvent(name.toLowerCase(), {
                    detail: event,
                    cancelable: true
                });
                return !util.global.dispatchEvent(domEvent);
            };
        } else if (typeof Event === "function") {
            var event = new Event("CustomEvent");
            util.global.dispatchEvent(event);
            return function(name, event) {
                var domEvent = new Event(name.toLowerCase(), {
                    cancelable: true
                });
                domEvent.detail = event;
                return !util.global.dispatchEvent(domEvent);
            };
        } else {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("testingtheevent", false, true, {});
            util.global.dispatchEvent(event);
            return function(name, event) {
                var domEvent = document.createEvent("CustomEvent");
                domEvent.initCustomEvent(name.toLowerCase(), false, true,
                    event);
                return !util.global.dispatchEvent(domEvent);
            };
        }
    } catch (e) {}
    return function() {
        return false;
    };
})();

var fireGlobalEvent = (function() {
    if (util.isNode) {
        return function() {
            return process.emit.apply(process, arguments);
        };
    } else {
        if (!util.global) {
            return function() {
                return false;
            };
        }
        return function(name) {
            var methodName = "on" + name.toLowerCase();
            var method = util.global[methodName];
            if (!method) return false;
            method.apply(util.global, [].slice.call(arguments, 1));
            return true;
        };
    }
})();

function generatePromiseLifecycleEventObject(name, promise) {
    return {promise: promise};
}

var eventToObjectGenerator = {
    promiseCreated: generatePromiseLifecycleEventObject,
    promiseFulfilled: generatePromiseLifecycleEventObject,
    promiseRejected: generatePromiseLifecycleEventObject,
    promiseResolved: generatePromiseLifecycleEventObject,
    promiseCancelled: generatePromiseLifecycleEventObject,
    promiseChained: function(name, promise, child) {
        return {promise: promise, child: child};
    },
    warning: function(name, warning) {
        return {warning: warning};
    },
    unhandledRejection: function (name, reason, promise) {
        return {reason: reason, promise: promise};
    },
    rejectionHandled: generatePromiseLifecycleEventObject
};

var activeFireEvent = function (name) {
    var globalEventFired = false;
    try {
        globalEventFired = fireGlobalEvent.apply(null, arguments);
    } catch (e) {
        async.throwLater(e);
        globalEventFired = true;
    }

    var domEventFired = false;
    try {
        domEventFired = fireDomEvent(name,
                    eventToObjectGenerator[name].apply(null, arguments));
    } catch (e) {
        async.throwLater(e);
        domEventFired = true;
    }

    return domEventFired || globalEventFired;
};

Promise.config = function(opts) {
    opts = Object(opts);
    if ("longStackTraces" in opts) {
        if (opts.longStackTraces) {
            Promise.longStackTraces();
        } else if (!opts.longStackTraces && Promise.hasLongStackTraces()) {
            disableLongStackTraces();
        }
    }
    if ("warnings" in opts) {
        var warningsOption = opts.warnings;
        config.warnings = !!warningsOption;
        wForgottenReturn = config.warnings;

        if (util.isObject(warningsOption)) {
            if ("wForgottenReturn" in warningsOption) {
                wForgottenReturn = !!warningsOption.wForgottenReturn;
            }
        }
    }
    if ("cancellation" in opts && opts.cancellation && !config.cancellation) {
        if (async.haveItemsQueued()) {
            throw new Error(
                "cannot enable cancellation after promises are in use");
        }
        Promise.prototype._clearCancellationData =
            cancellationClearCancellationData;
        Promise.prototype._propagateFrom = cancellationPropagateFrom;
        Promise.prototype._onCancel = cancellationOnCancel;
        Promise.prototype._setOnCancel = cancellationSetOnCancel;
        Promise.prototype._attachCancellationCallback =
            cancellationAttachCancellationCallback;
        Promise.prototype._execute = cancellationExecute;
        propagateFromFunction = cancellationPropagateFrom;
        config.cancellation = true;
    }
    if ("monitoring" in opts) {
        if (opts.monitoring && !config.monitoring) {
            config.monitoring = true;
            Promise.prototype._fireEvent = activeFireEvent;
        } else if (!opts.monitoring && config.monitoring) {
            config.monitoring = false;
            Promise.prototype._fireEvent = defaultFireEvent;
        }
    }
    return Promise;
};

function defaultFireEvent() { return false; }

Promise.prototype._fireEvent = defaultFireEvent;
Promise.prototype._execute = function(executor, resolve, reject) {
    try {
        executor(resolve, reject);
    } catch (e) {
        return e;
    }
};
Promise.prototype._onCancel = function () {};
Promise.prototype._setOnCancel = function (handler) { ; };
Promise.prototype._attachCancellationCallback = function(onCancel) {
    ;
};
Promise.prototype._captureStackTrace = function () {};
Promise.prototype._attachExtraTrace = function () {};
Promise.prototype._clearCancellationData = function() {};
Promise.prototype._propagateFrom = function (parent, flags) {
    ;
    ;
};

function cancellationExecute(executor, resolve, reject) {
    var promise = this;
    try {
        executor(resolve, reject, function(onCancel) {
            if (typeof onCancel !== "function") {
                throw new TypeError("onCancel must be a function, got: " +
                                    util.toString(onCancel));
            }
            promise._attachCancellationCallback(onCancel);
        });
    } catch (e) {
        return e;
    }
}

function cancellationAttachCancellationCallback(onCancel) {
    if (!this._isCancellable()) return this;

    var previousOnCancel = this._onCancel();
    if (previousOnCancel !== undefined) {
        if (util.isArray(previousOnCancel)) {
            previousOnCancel.push(onCancel);
        } else {
            this._setOnCancel([previousOnCancel, onCancel]);
        }
    } else {
        this._setOnCancel(onCancel);
    }
}

function cancellationOnCancel() {
    return this._onCancelField;
}

function cancellationSetOnCancel(onCancel) {
    this._onCancelField = onCancel;
}

function cancellationClearCancellationData() {
    this._cancellationParent = undefined;
    this._onCancelField = undefined;
}

function cancellationPropagateFrom(parent, flags) {
    if ((flags & 1) !== 0) {
        this._cancellationParent = parent;
        var branchesRemainingToCancel = parent._branchesRemainingToCancel;
        if (branchesRemainingToCancel === undefined) {
            branchesRemainingToCancel = 0;
        }
        parent._branchesRemainingToCancel = branchesRemainingToCancel + 1;
    }
    if ((flags & 2) !== 0 && parent._isBound()) {
        this._setBoundTo(parent._boundTo);
    }
}

function bindingPropagateFrom(parent, flags) {
    if ((flags & 2) !== 0 && parent._isBound()) {
        this._setBoundTo(parent._boundTo);
    }
}
var propagateFromFunction = bindingPropagateFrom;

function boundValueFunction() {
    var ret = this._boundTo;
    if (ret !== undefined) {
        if (ret instanceof Promise) {
            if (ret.isFulfilled()) {
                return ret.value();
            } else {
                return undefined;
            }
        }
    }
    return ret;
}

function longStackTracesCaptureStackTrace() {
    this._trace = new CapturedTrace(this._peekContext());
}

function longStackTracesAttachExtraTrace(error, ignoreSelf) {
    if (canAttachTrace(error)) {
        var trace = this._trace;
        if (trace !== undefined) {
            if (ignoreSelf) trace = trace._parent;
        }
        if (trace !== undefined) {
            trace.attachExtraTrace(error);
        } else if (!error.__stackCleaned__) {
            var parsed = parseStackAndMessage(error);
            util.notEnumerableProp(error, "stack",
                parsed.message + "\n" + parsed.stack.join("\n"));
            util.notEnumerableProp(error, "__stackCleaned__", true);
        }
    }
}

function checkForgottenReturns(returnValue, promiseCreated, name, promise,
                               parent) {
    if (returnValue === undefined && promiseCreated !== null &&
        wForgottenReturn) {
        if (parent !== undefined && parent._returnedNonUndefined()) return;
        if ((promise._bitField & 65535) === 0) return;

        if (name) name = name + " ";
        var handlerLine = "";
        var creatorLine = "";
        if (promiseCreated._trace) {
            var traceLines = promiseCreated._trace.stack.split("\n");
            var stack = cleanStack(traceLines);
            for (var i = stack.length - 1; i >= 0; --i) {
                var line = stack[i];
                if (!nodeFramePattern.test(line)) {
                    var lineMatches = line.match(parseLinePattern);
                    if (lineMatches) {
                        handlerLine  = "at " + lineMatches[1] +
                            ":" + lineMatches[2] + ":" + lineMatches[3] + " ";
                    }
                    break;
                }
            }

            if (stack.length > 0) {
                var firstUserLine = stack[0];
                for (var i = 0; i < traceLines.length; ++i) {

                    if (traceLines[i] === firstUserLine) {
                        if (i > 0) {
                            creatorLine = "\n" + traceLines[i - 1];
                        }
                        break;
                    }
                }

            }
        }
        var msg = "a promise was created in a " + name +
            "handler " + handlerLine + "but was not returned from it, " +
            "see http://goo.gl/rRqMUw" +
            creatorLine;
        promise._warn(msg, true, promiseCreated);
    }
}

function deprecated(name, replacement) {
    var message = name +
        " is deprecated and will be removed in a future version.";
    if (replacement) message += " Use " + replacement + " instead.";
    return warn(message);
}

function warn(message, shouldUseOwnTrace, promise) {
    if (!config.warnings) return;
    var warning = new Warning(message);
    var ctx;
    if (shouldUseOwnTrace) {
        promise._attachExtraTrace(warning);
    } else if (config.longStackTraces && (ctx = Promise._peekContext())) {
        ctx.attachExtraTrace(warning);
    } else {
        var parsed = parseStackAndMessage(warning);
        warning.stack = parsed.message + "\n" + parsed.stack.join("\n");
    }

    if (!activeFireEvent("warning", warning)) {
        formatAndLogError(warning, "", true);
    }
}

function reconstructStack(message, stacks) {
    for (var i = 0; i < stacks.length - 1; ++i) {
        stacks[i].push("From previous event:");
        stacks[i] = stacks[i].join("\n");
    }
    if (i < stacks.length) {
        stacks[i] = stacks[i].join("\n");
    }
    return message + "\n" + stacks.join("\n");
}

function removeDuplicateOrEmptyJumps(stacks) {
    for (var i = 0; i < stacks.length; ++i) {
        if (stacks[i].length === 0 ||
            ((i + 1 < stacks.length) && stacks[i][0] === stacks[i+1][0])) {
            stacks.splice(i, 1);
            i--;
        }
    }
}

function removeCommonRoots(stacks) {
    var current = stacks[0];
    for (var i = 1; i < stacks.length; ++i) {
        var prev = stacks[i];
        var currentLastIndex = current.length - 1;
        var currentLastLine = current[currentLastIndex];
        var commonRootMeetPoint = -1;

        for (var j = prev.length - 1; j >= 0; --j) {
            if (prev[j] === currentLastLine) {
                commonRootMeetPoint = j;
                break;
            }
        }

        for (var j = commonRootMeetPoint; j >= 0; --j) {
            var line = prev[j];
            if (current[currentLastIndex] === line) {
                current.pop();
                currentLastIndex--;
            } else {
                break;
            }
        }
        current = prev;
    }
}

function cleanStack(stack) {
    var ret = [];
    for (var i = 0; i < stack.length; ++i) {
        var line = stack[i];
        var isTraceLine = "    (No stack trace)" === line ||
            stackFramePattern.test(line);
        var isInternalFrame = isTraceLine && shouldIgnore(line);
        if (isTraceLine && !isInternalFrame) {
            if (indentStackFrames && line.charAt(0) !== " ") {
                line = "    " + line;
            }
            ret.push(line);
        }
    }
    return ret;
}

function stackFramesAsArray(error) {
    var stack = error.stack.replace(/\s+$/g, "").split("\n");
    for (var i = 0; i < stack.length; ++i) {
        var line = stack[i];
        if ("    (No stack trace)" === line || stackFramePattern.test(line)) {
            break;
        }
    }
    if (i > 0 && error.name != "SyntaxError") {
        stack = stack.slice(i);
    }
    return stack;
}

function parseStackAndMessage(error) {
    var stack = error.stack;
    var message = error.toString();
    stack = typeof stack === "string" && stack.length > 0
                ? stackFramesAsArray(error) : ["    (No stack trace)"];
    return {
        message: message,
        stack: error.name == "SyntaxError" ? stack : cleanStack(stack)
    };
}

function formatAndLogError(error, title, isSoft) {
    if (typeof console !== "undefined") {
        var message;
        if (util.isObject(error)) {
            var stack = error.stack;
            message = title + formatStack(stack, error);
        } else {
            message = title + String(error);
        }
        if (typeof printWarning === "function") {
            printWarning(message, isSoft);
        } else if (typeof console.log === "function" ||
            typeof console.log === "object") {
            console.log(message);
        }
    }
}

function fireRejectionEvent(name, localHandler, reason, promise) {
    var localEventFired = false;
    try {
        if (typeof localHandler === "function") {
            localEventFired = true;
            if (name === "rejectionHandled") {
                localHandler(promise);
            } else {
                localHandler(reason, promise);
            }
        }
    } catch (e) {
        async.throwLater(e);
    }

    if (name === "unhandledRejection") {
        if (!activeFireEvent(name, reason, promise) && !localEventFired) {
            formatAndLogError(reason, "Unhandled rejection ");
        }
    } else {
        activeFireEvent(name, promise);
    }
}

function formatNonError(obj) {
    var str;
    if (typeof obj === "function") {
        str = "[function " +
            (obj.name || "anonymous") +
            "]";
    } else {
        str = obj && typeof obj.toString === "function"
            ? obj.toString() : util.toString(obj);
        var ruselessToString = /\[object [a-zA-Z0-9$_]+\]/;
        if (ruselessToString.test(str)) {
            try {
                var newStr = JSON.stringify(obj);
                str = newStr;
            }
            catch(e) {

            }
        }
        if (str.length === 0) {
            str = "(empty array)";
        }
    }
    return ("(<" + snip(str) + ">, no stack trace)");
}

function snip(str) {
    var maxChars = 41;
    if (str.length < maxChars) {
        return str;
    }
    return str.substr(0, maxChars - 3) + "...";
}

function longStackTracesIsSupported() {
    return typeof captureStackTrace === "function";
}

var shouldIgnore = function() { return false; };
var parseLineInfoRegex = /[\/<\(]([^:\/]+):(\d+):(?:\d+)\)?\s*$/;
function parseLineInfo(line) {
    var matches = line.match(parseLineInfoRegex);
    if (matches) {
        return {
            fileName: matches[1],
            line: parseInt(matches[2], 10)
        };
    }
}

function setBounds(firstLineError, lastLineError) {
    if (!longStackTracesIsSupported()) return;
    var firstStackLines = firstLineError.stack.split("\n");
    var lastStackLines = lastLineError.stack.split("\n");
    var firstIndex = -1;
    var lastIndex = -1;
    var firstFileName;
    var lastFileName;
    for (var i = 0; i < firstStackLines.length; ++i) {
        var result = parseLineInfo(firstStackLines[i]);
        if (result) {
            firstFileName = result.fileName;
            firstIndex = result.line;
            break;
        }
    }
    for (var i = 0; i < lastStackLines.length; ++i) {
        var result = parseLineInfo(lastStackLines[i]);
        if (result) {
            lastFileName = result.fileName;
            lastIndex = result.line;
            break;
        }
    }
    if (firstIndex < 0 || lastIndex < 0 || !firstFileName || !lastFileName ||
        firstFileName !== lastFileName || firstIndex >= lastIndex) {
        return;
    }

    shouldIgnore = function(line) {
        if (bluebirdFramePattern.test(line)) return true;
        var info = parseLineInfo(line);
        if (info) {
            if (info.fileName === firstFileName &&
                (firstIndex <= info.line && info.line <= lastIndex)) {
                return true;
            }
        }
        return false;
    };
}

function CapturedTrace(parent) {
    this._parent = parent;
    this._promisesCreated = 0;
    var length = this._length = 1 + (parent === undefined ? 0 : parent._length);
    captureStackTrace(this, CapturedTrace);
    if (length > 32) this.uncycle();
}
util.inherits(CapturedTrace, Error);
Context.CapturedTrace = CapturedTrace;

CapturedTrace.prototype.uncycle = function() {
    var length = this._length;
    if (length < 2) return;
    var nodes = [];
    var stackToIndex = {};

    for (var i = 0, node = this; node !== undefined; ++i) {
        nodes.push(node);
        node = node._parent;
    }
    length = this._length = i;
    for (var i = length - 1; i >= 0; --i) {
        var stack = nodes[i].stack;
        if (stackToIndex[stack] === undefined) {
            stackToIndex[stack] = i;
        }
    }
    for (var i = 0; i < length; ++i) {
        var currentStack = nodes[i].stack;
        var index = stackToIndex[currentStack];
        if (index !== undefined && index !== i) {
            if (index > 0) {
                nodes[index - 1]._parent = undefined;
                nodes[index - 1]._length = 1;
            }
            nodes[i]._parent = undefined;
            nodes[i]._length = 1;
            var cycleEdgeNode = i > 0 ? nodes[i - 1] : this;

            if (index < length - 1) {
                cycleEdgeNode._parent = nodes[index + 1];
                cycleEdgeNode._parent.uncycle();
                cycleEdgeNode._length =
                    cycleEdgeNode._parent._length + 1;
            } else {
                cycleEdgeNode._parent = undefined;
                cycleEdgeNode._length = 1;
            }
            var currentChildLength = cycleEdgeNode._length + 1;
            for (var j = i - 2; j >= 0; --j) {
                nodes[j]._length = currentChildLength;
                currentChildLength++;
            }
            return;
        }
    }
};

CapturedTrace.prototype.attachExtraTrace = function(error) {
    if (error.__stackCleaned__) return;
    this.uncycle();
    var parsed = parseStackAndMessage(error);
    var message = parsed.message;
    var stacks = [parsed.stack];

    var trace = this;
    while (trace !== undefined) {
        stacks.push(cleanStack(trace.stack.split("\n")));
        trace = trace._parent;
    }
    removeCommonRoots(stacks);
    removeDuplicateOrEmptyJumps(stacks);
    util.notEnumerableProp(error, "stack", reconstructStack(message, stacks));
    util.notEnumerableProp(error, "__stackCleaned__", true);
};

var captureStackTrace = (function stackDetection() {
    var v8stackFramePattern = /^\s*at\s*/;
    var v8stackFormatter = function(stack, error) {
        if (typeof stack === "string") return stack;

        if (error.name !== undefined &&
            error.message !== undefined) {
            return error.toString();
        }
        return formatNonError(error);
    };

    if (typeof Error.stackTraceLimit === "number" &&
        typeof Error.captureStackTrace === "function") {
        Error.stackTraceLimit += 6;
        stackFramePattern = v8stackFramePattern;
        formatStack = v8stackFormatter;
        var captureStackTrace = Error.captureStackTrace;

        shouldIgnore = function(line) {
            return bluebirdFramePattern.test(line);
        };
        return function(receiver, ignoreUntil) {
            Error.stackTraceLimit += 6;
            captureStackTrace(receiver, ignoreUntil);
            Error.stackTraceLimit -= 6;
        };
    }
    var err = new Error();

    if (typeof err.stack === "string" &&
        err.stack.split("\n")[0].indexOf("stackDetection@") >= 0) {
        stackFramePattern = /@/;
        formatStack = v8stackFormatter;
        indentStackFrames = true;
        return function captureStackTrace(o) {
            o.stack = new Error().stack;
        };
    }

    var hasStackAfterThrow;
    try { throw new Error(); }
    catch(e) {
        hasStackAfterThrow = ("stack" in e);
    }
    if (!("stack" in err) && hasStackAfterThrow &&
        typeof Error.stackTraceLimit === "number") {
        stackFramePattern = v8stackFramePattern;
        formatStack = v8stackFormatter;
        return function captureStackTrace(o) {
            Error.stackTraceLimit += 6;
            try { throw new Error(); }
            catch(e) { o.stack = e.stack; }
            Error.stackTraceLimit -= 6;
        };
    }

    formatStack = function(stack, error) {
        if (typeof stack === "string") return stack;

        if ((typeof error === "object" ||
            typeof error === "function") &&
            error.name !== undefined &&
            error.message !== undefined) {
            return error.toString();
        }
        return formatNonError(error);
    };

    return null;

})([]);

if (typeof console !== "undefined" && typeof console.warn !== "undefined") {
    printWarning = function (message) {
        console.warn(message);
    };
    if (util.isNode && process.stderr.isTTY) {
        printWarning = function(message, isSoft) {
            var color = isSoft ? "\u001b[33m" : "\u001b[31m";
            console.warn(color + message + "\u001b[0m\n");
        };
    } else if (!util.isNode && typeof (new Error().stack) === "string") {
        printWarning = function(message, isSoft) {
            console.warn("%c" + message,
                        isSoft ? "color: darkorange" : "color: red");
        };
    }
}

var config = {
    warnings: warnings,
    longStackTraces: false,
    cancellation: false,
    monitoring: false
};

if (longStackTraces) Promise.longStackTraces();

return {
    longStackTraces: function() {
        return config.longStackTraces;
    },
    warnings: function() {
        return config.warnings;
    },
    cancellation: function() {
        return config.cancellation;
    },
    monitoring: function() {
        return config.monitoring;
    },
    propagateFromFunction: function() {
        return propagateFromFunction;
    },
    boundValueFunction: function() {
        return boundValueFunction;
    },
    checkForgottenReturns: checkForgottenReturns,
    setBounds: setBounds,
    warn: warn,
    deprecated: deprecated,
    CapturedTrace: CapturedTrace,
    fireDomEvent: fireDomEvent,
    fireGlobalEvent: fireGlobalEvent
};
};

},{"./errors":12,"./util":36}],10:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise) {
function returner() {
    return this.value;
}
function thrower() {
    throw this.reason;
}

Promise.prototype["return"] =
Promise.prototype.thenReturn = function (value) {
    if (value instanceof Promise) value.suppressUnhandledRejections();
    return this._then(
        returner, undefined, undefined, {value: value}, undefined);
};

Promise.prototype["throw"] =
Promise.prototype.thenThrow = function (reason) {
    return this._then(
        thrower, undefined, undefined, {reason: reason}, undefined);
};

Promise.prototype.catchThrow = function (reason) {
    if (arguments.length <= 1) {
        return this._then(
            undefined, thrower, undefined, {reason: reason}, undefined);
    } else {
        var _reason = arguments[1];
        var handler = function() {throw _reason;};
        return this.caught(reason, handler);
    }
};

Promise.prototype.catchReturn = function (value) {
    if (arguments.length <= 1) {
        if (value instanceof Promise) value.suppressUnhandledRejections();
        return this._then(
            undefined, returner, undefined, {value: value}, undefined);
    } else {
        var _value = arguments[1];
        if (_value instanceof Promise) _value.suppressUnhandledRejections();
        var handler = function() {return _value;};
        return this.caught(value, handler);
    }
};
};

},{}],11:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, INTERNAL) {
var PromiseReduce = Promise.reduce;
var PromiseAll = Promise.all;

function promiseAllThis() {
    return PromiseAll(this);
}

function PromiseMapSeries(promises, fn) {
    return PromiseReduce(promises, fn, INTERNAL, INTERNAL);
}

Promise.prototype.each = function (fn) {
    return PromiseReduce(this, fn, INTERNAL, 0)
              ._then(promiseAllThis, undefined, undefined, this, undefined);
};

Promise.prototype.mapSeries = function (fn) {
    return PromiseReduce(this, fn, INTERNAL, INTERNAL);
};

Promise.each = function (promises, fn) {
    return PromiseReduce(promises, fn, INTERNAL, 0)
              ._then(promiseAllThis, undefined, undefined, promises, undefined);
};

Promise.mapSeries = PromiseMapSeries;
};


},{}],12:[function(_dereq_,module,exports){
"use strict";
var es5 = _dereq_("./es5");
var Objectfreeze = es5.freeze;
var util = _dereq_("./util");
var inherits = util.inherits;
var notEnumerableProp = util.notEnumerableProp;

function subError(nameProperty, defaultMessage) {
    function SubError(message) {
        if (!(this instanceof SubError)) return new SubError(message);
        notEnumerableProp(this, "message",
            typeof message === "string" ? message : defaultMessage);
        notEnumerableProp(this, "name", nameProperty);
        if (Error.captureStackTrace) {
            Error.captureStackTrace(this, this.constructor);
        } else {
            Error.call(this);
        }
    }
    inherits(SubError, Error);
    return SubError;
}

var _TypeError, _RangeError;
var Warning = subError("Warning", "warning");
var CancellationError = subError("CancellationError", "cancellation error");
var TimeoutError = subError("TimeoutError", "timeout error");
var AggregateError = subError("AggregateError", "aggregate error");
try {
    _TypeError = TypeError;
    _RangeError = RangeError;
} catch(e) {
    _TypeError = subError("TypeError", "type error");
    _RangeError = subError("RangeError", "range error");
}

var methods = ("join pop push shift unshift slice filter forEach some " +
    "every map indexOf lastIndexOf reduce reduceRight sort reverse").split(" ");

for (var i = 0; i < methods.length; ++i) {
    if (typeof Array.prototype[methods[i]] === "function") {
        AggregateError.prototype[methods[i]] = Array.prototype[methods[i]];
    }
}

es5.defineProperty(AggregateError.prototype, "length", {
    value: 0,
    configurable: false,
    writable: true,
    enumerable: true
});
AggregateError.prototype["isOperational"] = true;
var level = 0;
AggregateError.prototype.toString = function() {
    var indent = Array(level * 4 + 1).join(" ");
    var ret = "\n" + indent + "AggregateError of:" + "\n";
    level++;
    indent = Array(level * 4 + 1).join(" ");
    for (var i = 0; i < this.length; ++i) {
        var str = this[i] === this ? "[Circular AggregateError]" : this[i] + "";
        var lines = str.split("\n");
        for (var j = 0; j < lines.length; ++j) {
            lines[j] = indent + lines[j];
        }
        str = lines.join("\n");
        ret += str + "\n";
    }
    level--;
    return ret;
};

function OperationalError(message) {
    if (!(this instanceof OperationalError))
        return new OperationalError(message);
    notEnumerableProp(this, "name", "OperationalError");
    notEnumerableProp(this, "message", message);
    this.cause = message;
    this["isOperational"] = true;

    if (message instanceof Error) {
        notEnumerableProp(this, "message", message.message);
        notEnumerableProp(this, "stack", message.stack);
    } else if (Error.captureStackTrace) {
        Error.captureStackTrace(this, this.constructor);
    }

}
inherits(OperationalError, Error);

var errorTypes = Error["__BluebirdErrorTypes__"];
if (!errorTypes) {
    errorTypes = Objectfreeze({
        CancellationError: CancellationError,
        TimeoutError: TimeoutError,
        OperationalError: OperationalError,
        RejectionError: OperationalError,
        AggregateError: AggregateError
    });
    es5.defineProperty(Error, "__BluebirdErrorTypes__", {
        value: errorTypes,
        writable: false,
        enumerable: false,
        configurable: false
    });
}

module.exports = {
    Error: Error,
    TypeError: _TypeError,
    RangeError: _RangeError,
    CancellationError: errorTypes.CancellationError,
    OperationalError: errorTypes.OperationalError,
    TimeoutError: errorTypes.TimeoutError,
    AggregateError: errorTypes.AggregateError,
    Warning: Warning
};

},{"./es5":13,"./util":36}],13:[function(_dereq_,module,exports){
var isES5 = (function(){
    "use strict";
    return this === undefined;
})();

if (isES5) {
    module.exports = {
        freeze: Object.freeze,
        defineProperty: Object.defineProperty,
        getDescriptor: Object.getOwnPropertyDescriptor,
        keys: Object.keys,
        names: Object.getOwnPropertyNames,
        getPrototypeOf: Object.getPrototypeOf,
        isArray: Array.isArray,
        isES5: isES5,
        propertyIsWritable: function(obj, prop) {
            var descriptor = Object.getOwnPropertyDescriptor(obj, prop);
            return !!(!descriptor || descriptor.writable || descriptor.set);
        }
    };
} else {
    var has = {}.hasOwnProperty;
    var str = {}.toString;
    var proto = {}.constructor.prototype;

    var ObjectKeys = function (o) {
        var ret = [];
        for (var key in o) {
            if (has.call(o, key)) {
                ret.push(key);
            }
        }
        return ret;
    };

    var ObjectGetDescriptor = function(o, key) {
        return {value: o[key]};
    };

    var ObjectDefineProperty = function (o, key, desc) {
        o[key] = desc.value;
        return o;
    };

    var ObjectFreeze = function (obj) {
        return obj;
    };

    var ObjectGetPrototypeOf = function (obj) {
        try {
            return Object(obj).constructor.prototype;
        }
        catch (e) {
            return proto;
        }
    };

    var ArrayIsArray = function (obj) {
        try {
            return str.call(obj) === "[object Array]";
        }
        catch(e) {
            return false;
        }
    };

    module.exports = {
        isArray: ArrayIsArray,
        keys: ObjectKeys,
        names: ObjectKeys,
        defineProperty: ObjectDefineProperty,
        getDescriptor: ObjectGetDescriptor,
        freeze: ObjectFreeze,
        getPrototypeOf: ObjectGetPrototypeOf,
        isES5: isES5,
        propertyIsWritable: function() {
            return true;
        }
    };
}

},{}],14:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, INTERNAL) {
var PromiseMap = Promise.map;

Promise.prototype.filter = function (fn, options) {
    return PromiseMap(this, fn, options, INTERNAL);
};

Promise.filter = function (promises, fn, options) {
    return PromiseMap(promises, fn, options, INTERNAL);
};
};

},{}],15:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, tryConvertToPromise, NEXT_FILTER) {
var util = _dereq_("./util");
var CancellationError = Promise.CancellationError;
var errorObj = util.errorObj;
var catchFilter = _dereq_("./catch_filter")(NEXT_FILTER);

function PassThroughHandlerContext(promise, type, handler) {
    this.promise = promise;
    this.type = type;
    this.handler = handler;
    this.called = false;
    this.cancelPromise = null;
}

PassThroughHandlerContext.prototype.isFinallyHandler = function() {
    return this.type === 0;
};

function FinallyHandlerCancelReaction(finallyHandler) {
    this.finallyHandler = finallyHandler;
}

FinallyHandlerCancelReaction.prototype._resultCancelled = function() {
    checkCancel(this.finallyHandler);
};

function checkCancel(ctx, reason) {
    if (ctx.cancelPromise != null) {
        if (arguments.length > 1) {
            ctx.cancelPromise._reject(reason);
        } else {
            ctx.cancelPromise._cancel();
        }
        ctx.cancelPromise = null;
        return true;
    }
    return false;
}

function succeed() {
    return finallyHandler.call(this, this.promise._target()._settledValue());
}
function fail(reason) {
    if (checkCancel(this, reason)) return;
    errorObj.e = reason;
    return errorObj;
}
function finallyHandler(reasonOrValue) {
    var promise = this.promise;
    var handler = this.handler;

    if (!this.called) {
        this.called = true;
        var ret = this.isFinallyHandler()
            ? handler.call(promise._boundValue())
            : handler.call(promise._boundValue(), reasonOrValue);
        if (ret === NEXT_FILTER) {
            return ret;
        } else if (ret !== undefined) {
            promise._setReturnedNonUndefined();
            var maybePromise = tryConvertToPromise(ret, promise);
            if (maybePromise instanceof Promise) {
                if (this.cancelPromise != null) {
                    if (maybePromise._isCancelled()) {
                        var reason =
                            new CancellationError("late cancellation observer");
                        promise._attachExtraTrace(reason);
                        errorObj.e = reason;
                        return errorObj;
                    } else if (maybePromise.isPending()) {
                        maybePromise._attachCancellationCallback(
                            new FinallyHandlerCancelReaction(this));
                    }
                }
                return maybePromise._then(
                    succeed, fail, undefined, this, undefined);
            }
        }
    }

    if (promise.isRejected()) {
        checkCancel(this);
        errorObj.e = reasonOrValue;
        return errorObj;
    } else {
        checkCancel(this);
        return reasonOrValue;
    }
}

Promise.prototype._passThrough = function(handler, type, success, fail) {
    if (typeof handler !== "function") return this.then();
    return this._then(success,
                      fail,
                      undefined,
                      new PassThroughHandlerContext(this, type, handler),
                      undefined);
};

Promise.prototype.lastly =
Promise.prototype["finally"] = function (handler) {
    return this._passThrough(handler,
                             0,
                             finallyHandler,
                             finallyHandler);
};


Promise.prototype.tap = function (handler) {
    return this._passThrough(handler, 1, finallyHandler);
};

Promise.prototype.tapCatch = function (handlerOrPredicate) {
    var len = arguments.length;
    if(len === 1) {
        return this._passThrough(handlerOrPredicate,
                                 1,
                                 undefined,
                                 finallyHandler);
    } else {
         var catchInstances = new Array(len - 1),
            j = 0, i;
        for (i = 0; i < len - 1; ++i) {
            var item = arguments[i];
            if (util.isObject(item)) {
                catchInstances[j++] = item;
            } else {
                return Promise.reject(new TypeError(
                    "tapCatch statement predicate: "
                    + "expecting an object but got " + util.classString(item)
                ));
            }
        }
        catchInstances.length = j;
        var handler = arguments[i];
        return this._passThrough(catchFilter(catchInstances, handler, this),
                                 1,
                                 undefined,
                                 finallyHandler);
    }

};

return PassThroughHandlerContext;
};

},{"./catch_filter":7,"./util":36}],16:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise,
                          apiRejection,
                          INTERNAL,
                          tryConvertToPromise,
                          Proxyable,
                          debug) {
var errors = _dereq_("./errors");
var TypeError = errors.TypeError;
var util = _dereq_("./util");
var errorObj = util.errorObj;
var tryCatch = util.tryCatch;
var yieldHandlers = [];

function promiseFromYieldHandler(value, yieldHandlers, traceParent) {
    for (var i = 0; i < yieldHandlers.length; ++i) {
        traceParent._pushContext();
        var result = tryCatch(yieldHandlers[i])(value);
        traceParent._popContext();
        if (result === errorObj) {
            traceParent._pushContext();
            var ret = Promise.reject(errorObj.e);
            traceParent._popContext();
            return ret;
        }
        var maybePromise = tryConvertToPromise(result, traceParent);
        if (maybePromise instanceof Promise) return maybePromise;
    }
    return null;
}

function PromiseSpawn(generatorFunction, receiver, yieldHandler, stack) {
    if (debug.cancellation()) {
        var internal = new Promise(INTERNAL);
        var _finallyPromise = this._finallyPromise = new Promise(INTERNAL);
        this._promise = internal.lastly(function() {
            return _finallyPromise;
        });
        internal._captureStackTrace();
        internal._setOnCancel(this);
    } else {
        var promise = this._promise = new Promise(INTERNAL);
        promise._captureStackTrace();
    }
    this._stack = stack;
    this._generatorFunction = generatorFunction;
    this._receiver = receiver;
    this._generator = undefined;
    this._yieldHandlers = typeof yieldHandler === "function"
        ? [yieldHandler].concat(yieldHandlers)
        : yieldHandlers;
    this._yieldedPromise = null;
    this._cancellationPhase = false;
}
util.inherits(PromiseSpawn, Proxyable);

PromiseSpawn.prototype._isResolved = function() {
    return this._promise === null;
};

PromiseSpawn.prototype._cleanup = function() {
    this._promise = this._generator = null;
    if (debug.cancellation() && this._finallyPromise !== null) {
        this._finallyPromise._fulfill();
        this._finallyPromise = null;
    }
};

PromiseSpawn.prototype._promiseCancelled = function() {
    if (this._isResolved()) return;
    var implementsReturn = typeof this._generator["return"] !== "undefined";

    var result;
    if (!implementsReturn) {
        var reason = new Promise.CancellationError(
            "generator .return() sentinel");
        Promise.coroutine.returnSentinel = reason;
        this._promise._attachExtraTrace(reason);
        this._promise._pushContext();
        result = tryCatch(this._generator["throw"]).call(this._generator,
                                                         reason);
        this._promise._popContext();
    } else {
        this._promise._pushContext();
        result = tryCatch(this._generator["return"]).call(this._generator,
                                                          undefined);
        this._promise._popContext();
    }
    this._cancellationPhase = true;
    this._yieldedPromise = null;
    this._continue(result);
};

PromiseSpawn.prototype._promiseFulfilled = function(value) {
    this._yieldedPromise = null;
    this._promise._pushContext();
    var result = tryCatch(this._generator.next).call(this._generator, value);
    this._promise._popContext();
    this._continue(result);
};

PromiseSpawn.prototype._promiseRejected = function(reason) {
    this._yieldedPromise = null;
    this._promise._attachExtraTrace(reason);
    this._promise._pushContext();
    var result = tryCatch(this._generator["throw"])
        .call(this._generator, reason);
    this._promise._popContext();
    this._continue(result);
};

PromiseSpawn.prototype._resultCancelled = function() {
    if (this._yieldedPromise instanceof Promise) {
        var promise = this._yieldedPromise;
        this._yieldedPromise = null;
        promise.cancel();
    }
};

PromiseSpawn.prototype.promise = function () {
    return this._promise;
};

PromiseSpawn.prototype._run = function () {
    this._generator = this._generatorFunction.call(this._receiver);
    this._receiver =
        this._generatorFunction = undefined;
    this._promiseFulfilled(undefined);
};

PromiseSpawn.prototype._continue = function (result) {
    var promise = this._promise;
    if (result === errorObj) {
        this._cleanup();
        if (this._cancellationPhase) {
            return promise.cancel();
        } else {
            return promise._rejectCallback(result.e, false);
        }
    }

    var value = result.value;
    if (result.done === true) {
        this._cleanup();
        if (this._cancellationPhase) {
            return promise.cancel();
        } else {
            return promise._resolveCallback(value);
        }
    } else {
        var maybePromise = tryConvertToPromise(value, this._promise);
        if (!(maybePromise instanceof Promise)) {
            maybePromise =
                promiseFromYieldHandler(maybePromise,
                                        this._yieldHandlers,
                                        this._promise);
            if (maybePromise === null) {
                this._promiseRejected(
                    new TypeError(
                        "A value %s was yielded that could not be treated as a promise\u000a\u000a    See http://goo.gl/MqrFmX\u000a\u000a".replace("%s", String(value)) +
                        "From coroutine:\u000a" +
                        this._stack.split("\n").slice(1, -7).join("\n")
                    )
                );
                return;
            }
        }
        maybePromise = maybePromise._target();
        var bitField = maybePromise._bitField;
        ;
        if (((bitField & 50397184) === 0)) {
            this._yieldedPromise = maybePromise;
            maybePromise._proxy(this, null);
        } else if (((bitField & 33554432) !== 0)) {
            Promise._async.invoke(
                this._promiseFulfilled, this, maybePromise._value()
            );
        } else if (((bitField & 16777216) !== 0)) {
            Promise._async.invoke(
                this._promiseRejected, this, maybePromise._reason()
            );
        } else {
            this._promiseCancelled();
        }
    }
};

Promise.coroutine = function (generatorFunction, options) {
    if (typeof generatorFunction !== "function") {
        throw new TypeError("generatorFunction must be a function\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    var yieldHandler = Object(options).yieldHandler;
    var PromiseSpawn$ = PromiseSpawn;
    var stack = new Error().stack;
    return function () {
        var generator = generatorFunction.apply(this, arguments);
        var spawn = new PromiseSpawn$(undefined, undefined, yieldHandler,
                                      stack);
        var ret = spawn.promise();
        spawn._generator = generator;
        spawn._promiseFulfilled(undefined);
        return ret;
    };
};

Promise.coroutine.addYieldHandler = function(fn) {
    if (typeof fn !== "function") {
        throw new TypeError("expecting a function but got " + util.classString(fn));
    }
    yieldHandlers.push(fn);
};

Promise.spawn = function (generatorFunction) {
    debug.deprecated("Promise.spawn()", "Promise.coroutine()");
    if (typeof generatorFunction !== "function") {
        return apiRejection("generatorFunction must be a function\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    var spawn = new PromiseSpawn(generatorFunction, this);
    var ret = spawn.promise();
    spawn._run(Promise.spawn);
    return ret;
};
};

},{"./errors":12,"./util":36}],17:[function(_dereq_,module,exports){
"use strict";
module.exports =
function(Promise, PromiseArray, tryConvertToPromise, INTERNAL, async,
         getDomain) {
var util = _dereq_("./util");
var canEvaluate = util.canEvaluate;
var tryCatch = util.tryCatch;
var errorObj = util.errorObj;
var reject;

if (!true) {
if (canEvaluate) {
    var thenCallback = function(i) {
        return new Function("value", "holder", "                             \n\
            'use strict';                                                    \n\
            holder.pIndex = value;                                           \n\
            holder.checkFulfillment(this);                                   \n\
            ".replace(/Index/g, i));
    };

    var promiseSetter = function(i) {
        return new Function("promise", "holder", "                           \n\
            'use strict';                                                    \n\
            holder.pIndex = promise;                                         \n\
            ".replace(/Index/g, i));
    };

    var generateHolderClass = function(total) {
        var props = new Array(total);
        for (var i = 0; i < props.length; ++i) {
            props[i] = "this.p" + (i+1);
        }
        var assignment = props.join(" = ") + " = null;";
        var cancellationCode= "var promise;\n" + props.map(function(prop) {
            return "                                                         \n\
                promise = " + prop + ";                                      \n\
                if (promise instanceof Promise) {                            \n\
                    promise.cancel();                                        \n\
                }                                                            \n\
            ";
        }).join("\n");
        var passedArguments = props.join(", ");
        var name = "Holder$" + total;


        var code = "return function(tryCatch, errorObj, Promise, async) {    \n\
            'use strict';                                                    \n\
            function [TheName](fn) {                                         \n\
                [TheProperties]                                              \n\
                this.fn = fn;                                                \n\
                this.asyncNeeded = true;                                     \n\
                this.now = 0;                                                \n\
            }                                                                \n\
                                                                             \n\
            [TheName].prototype._callFunction = function(promise) {          \n\
                promise._pushContext();                                      \n\
                var ret = tryCatch(this.fn)([ThePassedArguments]);           \n\
                promise._popContext();                                       \n\
                if (ret === errorObj) {                                      \n\
                    promise._rejectCallback(ret.e, false);                   \n\
                } else {                                                     \n\
                    promise._resolveCallback(ret);                           \n\
                }                                                            \n\
            };                                                               \n\
                                                                             \n\
            [TheName].prototype.checkFulfillment = function(promise) {       \n\
                var now = ++this.now;                                        \n\
                if (now === [TheTotal]) {                                    \n\
                    if (this.asyncNeeded) {                                  \n\
                        async.invoke(this._callFunction, this, promise);     \n\
                    } else {                                                 \n\
                        this._callFunction(promise);                         \n\
                    }                                                        \n\
                                                                             \n\
                }                                                            \n\
            };                                                               \n\
                                                                             \n\
            [TheName].prototype._resultCancelled = function() {              \n\
                [CancellationCode]                                           \n\
            };                                                               \n\
                                                                             \n\
            return [TheName];                                                \n\
        }(tryCatch, errorObj, Promise, async);                               \n\
        ";

        code = code.replace(/\[TheName\]/g, name)
            .replace(/\[TheTotal\]/g, total)
            .replace(/\[ThePassedArguments\]/g, passedArguments)
            .replace(/\[TheProperties\]/g, assignment)
            .replace(/\[CancellationCode\]/g, cancellationCode);

        return new Function("tryCatch", "errorObj", "Promise", "async", code)
                           (tryCatch, errorObj, Promise, async);
    };

    var holderClasses = [];
    var thenCallbacks = [];
    var promiseSetters = [];

    for (var i = 0; i < 8; ++i) {
        holderClasses.push(generateHolderClass(i + 1));
        thenCallbacks.push(thenCallback(i + 1));
        promiseSetters.push(promiseSetter(i + 1));
    }

    reject = function (reason) {
        this._reject(reason);
    };
}}

Promise.join = function () {
    var last = arguments.length - 1;
    var fn;
    if (last > 0 && typeof arguments[last] === "function") {
        fn = arguments[last];
        if (!true) {
            if (last <= 8 && canEvaluate) {
                var ret = new Promise(INTERNAL);
                ret._captureStackTrace();
                var HolderClass = holderClasses[last - 1];
                var holder = new HolderClass(fn);
                var callbacks = thenCallbacks;

                for (var i = 0; i < last; ++i) {
                    var maybePromise = tryConvertToPromise(arguments[i], ret);
                    if (maybePromise instanceof Promise) {
                        maybePromise = maybePromise._target();
                        var bitField = maybePromise._bitField;
                        ;
                        if (((bitField & 50397184) === 0)) {
                            maybePromise._then(callbacks[i], reject,
                                               undefined, ret, holder);
                            promiseSetters[i](maybePromise, holder);
                            holder.asyncNeeded = false;
                        } else if (((bitField & 33554432) !== 0)) {
                            callbacks[i].call(ret,
                                              maybePromise._value(), holder);
                        } else if (((bitField & 16777216) !== 0)) {
                            ret._reject(maybePromise._reason());
                        } else {
                            ret._cancel();
                        }
                    } else {
                        callbacks[i].call(ret, maybePromise, holder);
                    }
                }

                if (!ret._isFateSealed()) {
                    if (holder.asyncNeeded) {
                        var domain = getDomain();
                        if (domain !== null) {
                            holder.fn = util.domainBind(domain, holder.fn);
                        }
                    }
                    ret._setAsyncGuaranteed();
                    ret._setOnCancel(holder);
                }
                return ret;
            }
        }
    }
    var args = [].slice.call(arguments);;
    if (fn) args.pop();
    var ret = new PromiseArray(args).promise();
    return fn !== undefined ? ret.spread(fn) : ret;
};

};

},{"./util":36}],18:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise,
                          PromiseArray,
                          apiRejection,
                          tryConvertToPromise,
                          INTERNAL,
                          debug) {
var getDomain = Promise._getDomain;
var util = _dereq_("./util");
var tryCatch = util.tryCatch;
var errorObj = util.errorObj;
var async = Promise._async;

function MappingPromiseArray(promises, fn, limit, _filter) {
    this.constructor$(promises);
    this._promise._captureStackTrace();
    var domain = getDomain();
    this._callback = domain === null ? fn : util.domainBind(domain, fn);
    this._preservedValues = _filter === INTERNAL
        ? new Array(this.length())
        : null;
    this._limit = limit;
    this._inFlight = 0;
    this._queue = [];
    async.invoke(this._asyncInit, this, undefined);
}
util.inherits(MappingPromiseArray, PromiseArray);

MappingPromiseArray.prototype._asyncInit = function() {
    this._init$(undefined, -2);
};

MappingPromiseArray.prototype._init = function () {};

MappingPromiseArray.prototype._promiseFulfilled = function (value, index) {
    var values = this._values;
    var length = this.length();
    var preservedValues = this._preservedValues;
    var limit = this._limit;

    if (index < 0) {
        index = (index * -1) - 1;
        values[index] = value;
        if (limit >= 1) {
            this._inFlight--;
            this._drainQueue();
            if (this._isResolved()) return true;
        }
    } else {
        if (limit >= 1 && this._inFlight >= limit) {
            values[index] = value;
            this._queue.push(index);
            return false;
        }
        if (preservedValues !== null) preservedValues[index] = value;

        var promise = this._promise;
        var callback = this._callback;
        var receiver = promise._boundValue();
        promise._pushContext();
        var ret = tryCatch(callback).call(receiver, value, index, length);
        var promiseCreated = promise._popContext();
        debug.checkForgottenReturns(
            ret,
            promiseCreated,
            preservedValues !== null ? "Promise.filter" : "Promise.map",
            promise
        );
        if (ret === errorObj) {
            this._reject(ret.e);
            return true;
        }

        var maybePromise = tryConvertToPromise(ret, this._promise);
        if (maybePromise instanceof Promise) {
            maybePromise = maybePromise._target();
            var bitField = maybePromise._bitField;
            ;
            if (((bitField & 50397184) === 0)) {
                if (limit >= 1) this._inFlight++;
                values[index] = maybePromise;
                maybePromise._proxy(this, (index + 1) * -1);
                return false;
            } else if (((bitField & 33554432) !== 0)) {
                ret = maybePromise._value();
            } else if (((bitField & 16777216) !== 0)) {
                this._reject(maybePromise._reason());
                return true;
            } else {
                this._cancel();
                return true;
            }
        }
        values[index] = ret;
    }
    var totalResolved = ++this._totalResolved;
    if (totalResolved >= length) {
        if (preservedValues !== null) {
            this._filter(values, preservedValues);
        } else {
            this._resolve(values);
        }
        return true;
    }
    return false;
};

MappingPromiseArray.prototype._drainQueue = function () {
    var queue = this._queue;
    var limit = this._limit;
    var values = this._values;
    while (queue.length > 0 && this._inFlight < limit) {
        if (this._isResolved()) return;
        var index = queue.pop();
        this._promiseFulfilled(values[index], index);
    }
};

MappingPromiseArray.prototype._filter = function (booleans, values) {
    var len = values.length;
    var ret = new Array(len);
    var j = 0;
    for (var i = 0; i < len; ++i) {
        if (booleans[i]) ret[j++] = values[i];
    }
    ret.length = j;
    this._resolve(ret);
};

MappingPromiseArray.prototype.preservedValues = function () {
    return this._preservedValues;
};

function map(promises, fn, options, _filter) {
    if (typeof fn !== "function") {
        return apiRejection("expecting a function but got " + util.classString(fn));
    }

    var limit = 0;
    if (options !== undefined) {
        if (typeof options === "object" && options !== null) {
            if (typeof options.concurrency !== "number") {
                return Promise.reject(
                    new TypeError("'concurrency' must be a number but it is " +
                                    util.classString(options.concurrency)));
            }
            limit = options.concurrency;
        } else {
            return Promise.reject(new TypeError(
                            "options argument must be an object but it is " +
                             util.classString(options)));
        }
    }
    limit = typeof limit === "number" &&
        isFinite(limit) && limit >= 1 ? limit : 0;
    return new MappingPromiseArray(promises, fn, limit, _filter).promise();
}

Promise.prototype.map = function (fn, options) {
    return map(this, fn, options, null);
};

Promise.map = function (promises, fn, options, _filter) {
    return map(promises, fn, options, _filter);
};


};

},{"./util":36}],19:[function(_dereq_,module,exports){
"use strict";
module.exports =
function(Promise, INTERNAL, tryConvertToPromise, apiRejection, debug) {
var util = _dereq_("./util");
var tryCatch = util.tryCatch;

Promise.method = function (fn) {
    if (typeof fn !== "function") {
        throw new Promise.TypeError("expecting a function but got " + util.classString(fn));
    }
    return function () {
        var ret = new Promise(INTERNAL);
        ret._captureStackTrace();
        ret._pushContext();
        var value = tryCatch(fn).apply(this, arguments);
        var promiseCreated = ret._popContext();
        debug.checkForgottenReturns(
            value, promiseCreated, "Promise.method", ret);
        ret._resolveFromSyncValue(value);
        return ret;
    };
};

Promise.attempt = Promise["try"] = function (fn) {
    if (typeof fn !== "function") {
        return apiRejection("expecting a function but got " + util.classString(fn));
    }
    var ret = new Promise(INTERNAL);
    ret._captureStackTrace();
    ret._pushContext();
    var value;
    if (arguments.length > 1) {
        debug.deprecated("calling Promise.try with more than 1 argument");
        var arg = arguments[1];
        var ctx = arguments[2];
        value = util.isArray(arg) ? tryCatch(fn).apply(ctx, arg)
                                  : tryCatch(fn).call(ctx, arg);
    } else {
        value = tryCatch(fn)();
    }
    var promiseCreated = ret._popContext();
    debug.checkForgottenReturns(
        value, promiseCreated, "Promise.try", ret);
    ret._resolveFromSyncValue(value);
    return ret;
};

Promise.prototype._resolveFromSyncValue = function (value) {
    if (value === util.errorObj) {
        this._rejectCallback(value.e, false);
    } else {
        this._resolveCallback(value, true);
    }
};
};

},{"./util":36}],20:[function(_dereq_,module,exports){
"use strict";
var util = _dereq_("./util");
var maybeWrapAsError = util.maybeWrapAsError;
var errors = _dereq_("./errors");
var OperationalError = errors.OperationalError;
var es5 = _dereq_("./es5");

function isUntypedError(obj) {
    return obj instanceof Error &&
        es5.getPrototypeOf(obj) === Error.prototype;
}

var rErrorKey = /^(?:name|message|stack|cause)$/;
function wrapAsOperationalError(obj) {
    var ret;
    if (isUntypedError(obj)) {
        ret = new OperationalError(obj);
        ret.name = obj.name;
        ret.message = obj.message;
        ret.stack = obj.stack;
        var keys = es5.keys(obj);
        for (var i = 0; i < keys.length; ++i) {
            var key = keys[i];
            if (!rErrorKey.test(key)) {
                ret[key] = obj[key];
            }
        }
        return ret;
    }
    util.markAsOriginatingFromRejection(obj);
    return obj;
}

function nodebackForPromise(promise, multiArgs) {
    return function(err, value) {
        if (promise === null) return;
        if (err) {
            var wrapped = wrapAsOperationalError(maybeWrapAsError(err));
            promise._attachExtraTrace(wrapped);
            promise._reject(wrapped);
        } else if (!multiArgs) {
            promise._fulfill(value);
        } else {
            var args = [].slice.call(arguments, 1);;
            promise._fulfill(args);
        }
        promise = null;
    };
}

module.exports = nodebackForPromise;

},{"./errors":12,"./es5":13,"./util":36}],21:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise) {
var util = _dereq_("./util");
var async = Promise._async;
var tryCatch = util.tryCatch;
var errorObj = util.errorObj;

function spreadAdapter(val, nodeback) {
    var promise = this;
    if (!util.isArray(val)) return successAdapter.call(promise, val, nodeback);
    var ret =
        tryCatch(nodeback).apply(promise._boundValue(), [null].concat(val));
    if (ret === errorObj) {
        async.throwLater(ret.e);
    }
}

function successAdapter(val, nodeback) {
    var promise = this;
    var receiver = promise._boundValue();
    var ret = val === undefined
        ? tryCatch(nodeback).call(receiver, null)
        : tryCatch(nodeback).call(receiver, null, val);
    if (ret === errorObj) {
        async.throwLater(ret.e);
    }
}
function errorAdapter(reason, nodeback) {
    var promise = this;
    if (!reason) {
        var newReason = new Error(reason + "");
        newReason.cause = reason;
        reason = newReason;
    }
    var ret = tryCatch(nodeback).call(promise._boundValue(), reason);
    if (ret === errorObj) {
        async.throwLater(ret.e);
    }
}

Promise.prototype.asCallback = Promise.prototype.nodeify = function (nodeback,
                                                                     options) {
    if (typeof nodeback == "function") {
        var adapter = successAdapter;
        if (options !== undefined && Object(options).spread) {
            adapter = spreadAdapter;
        }
        this._then(
            adapter,
            errorAdapter,
            undefined,
            this,
            nodeback
        );
    }
    return this;
};
};

},{"./util":36}],22:[function(_dereq_,module,exports){
"use strict";
module.exports = function() {
var makeSelfResolutionError = function () {
    return new TypeError("circular promise resolution chain\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
};
var reflectHandler = function() {
    return new Promise.PromiseInspection(this._target());
};
var apiRejection = function(msg) {
    return Promise.reject(new TypeError(msg));
};
function Proxyable() {}
var UNDEFINED_BINDING = {};
var util = _dereq_("./util");

var getDomain;
if (util.isNode) {
    getDomain = function() {
        var ret = process.domain;
        if (ret === undefined) ret = null;
        return ret;
    };
} else {
    getDomain = function() {
        return null;
    };
}
util.notEnumerableProp(Promise, "_getDomain", getDomain);

var es5 = _dereq_("./es5");
var Async = _dereq_("./async");
var async = new Async();
es5.defineProperty(Promise, "_async", {value: async});
var errors = _dereq_("./errors");
var TypeError = Promise.TypeError = errors.TypeError;
Promise.RangeError = errors.RangeError;
var CancellationError = Promise.CancellationError = errors.CancellationError;
Promise.TimeoutError = errors.TimeoutError;
Promise.OperationalError = errors.OperationalError;
Promise.RejectionError = errors.OperationalError;
Promise.AggregateError = errors.AggregateError;
var INTERNAL = function(){};
var APPLY = {};
var NEXT_FILTER = {};
var tryConvertToPromise = _dereq_("./thenables")(Promise, INTERNAL);
var PromiseArray =
    _dereq_("./promise_array")(Promise, INTERNAL,
                               tryConvertToPromise, apiRejection, Proxyable);
var Context = _dereq_("./context")(Promise);
 /*jshint unused:false*/
var createContext = Context.create;
var debug = _dereq_("./debuggability")(Promise, Context);
var CapturedTrace = debug.CapturedTrace;
var PassThroughHandlerContext =
    _dereq_("./finally")(Promise, tryConvertToPromise, NEXT_FILTER);
var catchFilter = _dereq_("./catch_filter")(NEXT_FILTER);
var nodebackForPromise = _dereq_("./nodeback");
var errorObj = util.errorObj;
var tryCatch = util.tryCatch;
function check(self, executor) {
    if (self == null || self.constructor !== Promise) {
        throw new TypeError("the promise constructor cannot be invoked directly\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    if (typeof executor !== "function") {
        throw new TypeError("expecting a function but got " + util.classString(executor));
    }

}

function Promise(executor) {
    if (executor !== INTERNAL) {
        check(this, executor);
    }
    this._bitField = 0;
    this._fulfillmentHandler0 = undefined;
    this._rejectionHandler0 = undefined;
    this._promise0 = undefined;
    this._receiver0 = undefined;
    this._resolveFromExecutor(executor);
    this._promiseCreated();
    this._fireEvent("promiseCreated", this);
}

Promise.prototype.toString = function () {
    return "[object Promise]";
};

Promise.prototype.caught = Promise.prototype["catch"] = function (fn) {
    var len = arguments.length;
    if (len > 1) {
        var catchInstances = new Array(len - 1),
            j = 0, i;
        for (i = 0; i < len - 1; ++i) {
            var item = arguments[i];
            if (util.isObject(item)) {
                catchInstances[j++] = item;
            } else {
                return apiRejection("Catch statement predicate: " +
                    "expecting an object but got " + util.classString(item));
            }
        }
        catchInstances.length = j;
        fn = arguments[i];
        return this.then(undefined, catchFilter(catchInstances, fn, this));
    }
    return this.then(undefined, fn);
};

Promise.prototype.reflect = function () {
    return this._then(reflectHandler,
        reflectHandler, undefined, this, undefined);
};

Promise.prototype.then = function (didFulfill, didReject) {
    if (debug.warnings() && arguments.length > 0 &&
        typeof didFulfill !== "function" &&
        typeof didReject !== "function") {
        var msg = ".then() only accepts functions but was passed: " +
                util.classString(didFulfill);
        if (arguments.length > 1) {
            msg += ", " + util.classString(didReject);
        }
        this._warn(msg);
    }
    return this._then(didFulfill, didReject, undefined, undefined, undefined);
};

Promise.prototype.done = function (didFulfill, didReject) {
    var promise =
        this._then(didFulfill, didReject, undefined, undefined, undefined);
    promise._setIsFinal();
};

Promise.prototype.spread = function (fn) {
    if (typeof fn !== "function") {
        return apiRejection("expecting a function but got " + util.classString(fn));
    }
    return this.all()._then(fn, undefined, undefined, APPLY, undefined);
};

Promise.prototype.toJSON = function () {
    var ret = {
        isFulfilled: false,
        isRejected: false,
        fulfillmentValue: undefined,
        rejectionReason: undefined
    };
    if (this.isFulfilled()) {
        ret.fulfillmentValue = this.value();
        ret.isFulfilled = true;
    } else if (this.isRejected()) {
        ret.rejectionReason = this.reason();
        ret.isRejected = true;
    }
    return ret;
};

Promise.prototype.all = function () {
    if (arguments.length > 0) {
        this._warn(".all() was passed arguments but it does not take any");
    }
    return new PromiseArray(this).promise();
};

Promise.prototype.error = function (fn) {
    return this.caught(util.originatesFromRejection, fn);
};

Promise.getNewLibraryCopy = module.exports;

Promise.is = function (val) {
    return val instanceof Promise;
};

Promise.fromNode = Promise.fromCallback = function(fn) {
    var ret = new Promise(INTERNAL);
    ret._captureStackTrace();
    var multiArgs = arguments.length > 1 ? !!Object(arguments[1]).multiArgs
                                         : false;
    var result = tryCatch(fn)(nodebackForPromise(ret, multiArgs));
    if (result === errorObj) {
        ret._rejectCallback(result.e, true);
    }
    if (!ret._isFateSealed()) ret._setAsyncGuaranteed();
    return ret;
};

Promise.all = function (promises) {
    return new PromiseArray(promises).promise();
};

Promise.cast = function (obj) {
    var ret = tryConvertToPromise(obj);
    if (!(ret instanceof Promise)) {
        ret = new Promise(INTERNAL);
        ret._captureStackTrace();
        ret._setFulfilled();
        ret._rejectionHandler0 = obj;
    }
    return ret;
};

Promise.resolve = Promise.fulfilled = Promise.cast;

Promise.reject = Promise.rejected = function (reason) {
    var ret = new Promise(INTERNAL);
    ret._captureStackTrace();
    ret._rejectCallback(reason, true);
    return ret;
};

Promise.setScheduler = function(fn) {
    if (typeof fn !== "function") {
        throw new TypeError("expecting a function but got " + util.classString(fn));
    }
    return async.setScheduler(fn);
};

Promise.prototype._then = function (
    didFulfill,
    didReject,
    _,    receiver,
    internalData
) {
    var haveInternalData = internalData !== undefined;
    var promise = haveInternalData ? internalData : new Promise(INTERNAL);
    var target = this._target();
    var bitField = target._bitField;

    if (!haveInternalData) {
        promise._propagateFrom(this, 3);
        promise._captureStackTrace();
        if (receiver === undefined &&
            ((this._bitField & 2097152) !== 0)) {
            if (!((bitField & 50397184) === 0)) {
                receiver = this._boundValue();
            } else {
                receiver = target === this ? undefined : this._boundTo;
            }
        }
        this._fireEvent("promiseChained", this, promise);
    }

    var domain = getDomain();
    if (!((bitField & 50397184) === 0)) {
        var handler, value, settler = target._settlePromiseCtx;
        if (((bitField & 33554432) !== 0)) {
            value = target._rejectionHandler0;
            handler = didFulfill;
        } else if (((bitField & 16777216) !== 0)) {
            value = target._fulfillmentHandler0;
            handler = didReject;
            target._unsetRejectionIsUnhandled();
        } else {
            settler = target._settlePromiseLateCancellationObserver;
            value = new CancellationError("late cancellation observer");
            target._attachExtraTrace(value);
            handler = didReject;
        }

        async.invoke(settler, target, {
            handler: domain === null ? handler
                : (typeof handler === "function" &&
                    util.domainBind(domain, handler)),
            promise: promise,
            receiver: receiver,
            value: value
        });
    } else {
        target._addCallbacks(didFulfill, didReject, promise, receiver, domain);
    }

    return promise;
};

Promise.prototype._length = function () {
    return this._bitField & 65535;
};

Promise.prototype._isFateSealed = function () {
    return (this._bitField & 117506048) !== 0;
};

Promise.prototype._isFollowing = function () {
    return (this._bitField & 67108864) === 67108864;
};

Promise.prototype._setLength = function (len) {
    this._bitField = (this._bitField & -65536) |
        (len & 65535);
};

Promise.prototype._setFulfilled = function () {
    this._bitField = this._bitField | 33554432;
    this._fireEvent("promiseFulfilled", this);
};

Promise.prototype._setRejected = function () {
    this._bitField = this._bitField | 16777216;
    this._fireEvent("promiseRejected", this);
};

Promise.prototype._setFollowing = function () {
    this._bitField = this._bitField | 67108864;
    this._fireEvent("promiseResolved", this);
};

Promise.prototype._setIsFinal = function () {
    this._bitField = this._bitField | 4194304;
};

Promise.prototype._isFinal = function () {
    return (this._bitField & 4194304) > 0;
};

Promise.prototype._unsetCancelled = function() {
    this._bitField = this._bitField & (~65536);
};

Promise.prototype._setCancelled = function() {
    this._bitField = this._bitField | 65536;
    this._fireEvent("promiseCancelled", this);
};

Promise.prototype._setWillBeCancelled = function() {
    this._bitField = this._bitField | 8388608;
};

Promise.prototype._setAsyncGuaranteed = function() {
    if (async.hasCustomScheduler()) return;
    this._bitField = this._bitField | 134217728;
};

Promise.prototype._receiverAt = function (index) {
    var ret = index === 0 ? this._receiver0 : this[
            index * 4 - 4 + 3];
    if (ret === UNDEFINED_BINDING) {
        return undefined;
    } else if (ret === undefined && this._isBound()) {
        return this._boundValue();
    }
    return ret;
};

Promise.prototype._promiseAt = function (index) {
    return this[
            index * 4 - 4 + 2];
};

Promise.prototype._fulfillmentHandlerAt = function (index) {
    return this[
            index * 4 - 4 + 0];
};

Promise.prototype._rejectionHandlerAt = function (index) {
    return this[
            index * 4 - 4 + 1];
};

Promise.prototype._boundValue = function() {};

Promise.prototype._migrateCallback0 = function (follower) {
    var bitField = follower._bitField;
    var fulfill = follower._fulfillmentHandler0;
    var reject = follower._rejectionHandler0;
    var promise = follower._promise0;
    var receiver = follower._receiverAt(0);
    if (receiver === undefined) receiver = UNDEFINED_BINDING;
    this._addCallbacks(fulfill, reject, promise, receiver, null);
};

Promise.prototype._migrateCallbackAt = function (follower, index) {
    var fulfill = follower._fulfillmentHandlerAt(index);
    var reject = follower._rejectionHandlerAt(index);
    var promise = follower._promiseAt(index);
    var receiver = follower._receiverAt(index);
    if (receiver === undefined) receiver = UNDEFINED_BINDING;
    this._addCallbacks(fulfill, reject, promise, receiver, null);
};

Promise.prototype._addCallbacks = function (
    fulfill,
    reject,
    promise,
    receiver,
    domain
) {
    var index = this._length();

    if (index >= 65535 - 4) {
        index = 0;
        this._setLength(0);
    }

    if (index === 0) {
        this._promise0 = promise;
        this._receiver0 = receiver;
        if (typeof fulfill === "function") {
            this._fulfillmentHandler0 =
                domain === null ? fulfill : util.domainBind(domain, fulfill);
        }
        if (typeof reject === "function") {
            this._rejectionHandler0 =
                domain === null ? reject : util.domainBind(domain, reject);
        }
    } else {
        var base = index * 4 - 4;
        this[base + 2] = promise;
        this[base + 3] = receiver;
        if (typeof fulfill === "function") {
            this[base + 0] =
                domain === null ? fulfill : util.domainBind(domain, fulfill);
        }
        if (typeof reject === "function") {
            this[base + 1] =
                domain === null ? reject : util.domainBind(domain, reject);
        }
    }
    this._setLength(index + 1);
    return index;
};

Promise.prototype._proxy = function (proxyable, arg) {
    this._addCallbacks(undefined, undefined, arg, proxyable, null);
};

Promise.prototype._resolveCallback = function(value, shouldBind) {
    if (((this._bitField & 117506048) !== 0)) return;
    if (value === this)
        return this._rejectCallback(makeSelfResolutionError(), false);
    var maybePromise = tryConvertToPromise(value, this);
    if (!(maybePromise instanceof Promise)) return this._fulfill(value);

    if (shouldBind) this._propagateFrom(maybePromise, 2);

    var promise = maybePromise._target();

    if (promise === this) {
        this._reject(makeSelfResolutionError());
        return;
    }

    var bitField = promise._bitField;
    if (((bitField & 50397184) === 0)) {
        var len = this._length();
        if (len > 0) promise._migrateCallback0(this);
        for (var i = 1; i < len; ++i) {
            promise._migrateCallbackAt(this, i);
        }
        this._setFollowing();
        this._setLength(0);
        this._setFollowee(promise);
    } else if (((bitField & 33554432) !== 0)) {
        this._fulfill(promise._value());
    } else if (((bitField & 16777216) !== 0)) {
        this._reject(promise._reason());
    } else {
        var reason = new CancellationError("late cancellation observer");
        promise._attachExtraTrace(reason);
        this._reject(reason);
    }
};

Promise.prototype._rejectCallback =
function(reason, synchronous, ignoreNonErrorWarnings) {
    var trace = util.ensureErrorObject(reason);
    var hasStack = trace === reason;
    if (!hasStack && !ignoreNonErrorWarnings && debug.warnings()) {
        var message = "a promise was rejected with a non-error: " +
            util.classString(reason);
        this._warn(message, true);
    }
    this._attachExtraTrace(trace, synchronous ? hasStack : false);
    this._reject(reason);
};

Promise.prototype._resolveFromExecutor = function (executor) {
    if (executor === INTERNAL) return;
    var promise = this;
    this._captureStackTrace();
    this._pushContext();
    var synchronous = true;
    var r = this._execute(executor, function(value) {
        promise._resolveCallback(value);
    }, function (reason) {
        promise._rejectCallback(reason, synchronous);
    });
    synchronous = false;
    this._popContext();

    if (r !== undefined) {
        promise._rejectCallback(r, true);
    }
};

Promise.prototype._settlePromiseFromHandler = function (
    handler, receiver, value, promise
) {
    var bitField = promise._bitField;
    if (((bitField & 65536) !== 0)) return;
    promise._pushContext();
    var x;
    if (receiver === APPLY) {
        if (!value || typeof value.length !== "number") {
            x = errorObj;
            x.e = new TypeError("cannot .spread() a non-array: " +
                                    util.classString(value));
        } else {
            x = tryCatch(handler).apply(this._boundValue(), value);
        }
    } else {
        x = tryCatch(handler).call(receiver, value);
    }
    var promiseCreated = promise._popContext();
    bitField = promise._bitField;
    if (((bitField & 65536) !== 0)) return;

    if (x === NEXT_FILTER) {
        promise._reject(value);
    } else if (x === errorObj) {
        promise._rejectCallback(x.e, false);
    } else {
        debug.checkForgottenReturns(x, promiseCreated, "",  promise, this);
        promise._resolveCallback(x);
    }
};

Promise.prototype._target = function() {
    var ret = this;
    while (ret._isFollowing()) ret = ret._followee();
    return ret;
};

Promise.prototype._followee = function() {
    return this._rejectionHandler0;
};

Promise.prototype._setFollowee = function(promise) {
    this._rejectionHandler0 = promise;
};

Promise.prototype._settlePromise = function(promise, handler, receiver, value) {
    var isPromise = promise instanceof Promise;
    var bitField = this._bitField;
    var asyncGuaranteed = ((bitField & 134217728) !== 0);
    if (((bitField & 65536) !== 0)) {
        if (isPromise) promise._invokeInternalOnCancel();

        if (receiver instanceof PassThroughHandlerContext &&
            receiver.isFinallyHandler()) {
            receiver.cancelPromise = promise;
            if (tryCatch(handler).call(receiver, value) === errorObj) {
                promise._reject(errorObj.e);
            }
        } else if (handler === reflectHandler) {
            promise._fulfill(reflectHandler.call(receiver));
        } else if (receiver instanceof Proxyable) {
            receiver._promiseCancelled(promise);
        } else if (isPromise || promise instanceof PromiseArray) {
            promise._cancel();
        } else {
            receiver.cancel();
        }
    } else if (typeof handler === "function") {
        if (!isPromise) {
            handler.call(receiver, value, promise);
        } else {
            if (asyncGuaranteed) promise._setAsyncGuaranteed();
            this._settlePromiseFromHandler(handler, receiver, value, promise);
        }
    } else if (receiver instanceof Proxyable) {
        if (!receiver._isResolved()) {
            if (((bitField & 33554432) !== 0)) {
                receiver._promiseFulfilled(value, promise);
            } else {
                receiver._promiseRejected(value, promise);
            }
        }
    } else if (isPromise) {
        if (asyncGuaranteed) promise._setAsyncGuaranteed();
        if (((bitField & 33554432) !== 0)) {
            promise._fulfill(value);
        } else {
            promise._reject(value);
        }
    }
};

Promise.prototype._settlePromiseLateCancellationObserver = function(ctx) {
    var handler = ctx.handler;
    var promise = ctx.promise;
    var receiver = ctx.receiver;
    var value = ctx.value;
    if (typeof handler === "function") {
        if (!(promise instanceof Promise)) {
            handler.call(receiver, value, promise);
        } else {
            this._settlePromiseFromHandler(handler, receiver, value, promise);
        }
    } else if (promise instanceof Promise) {
        promise._reject(value);
    }
};

Promise.prototype._settlePromiseCtx = function(ctx) {
    this._settlePromise(ctx.promise, ctx.handler, ctx.receiver, ctx.value);
};

Promise.prototype._settlePromise0 = function(handler, value, bitField) {
    var promise = this._promise0;
    var receiver = this._receiverAt(0);
    this._promise0 = undefined;
    this._receiver0 = undefined;
    this._settlePromise(promise, handler, receiver, value);
};

Promise.prototype._clearCallbackDataAtIndex = function(index) {
    var base = index * 4 - 4;
    this[base + 2] =
    this[base + 3] =
    this[base + 0] =
    this[base + 1] = undefined;
};

Promise.prototype._fulfill = function (value) {
    var bitField = this._bitField;
    if (((bitField & 117506048) >>> 16)) return;
    if (value === this) {
        var err = makeSelfResolutionError();
        this._attachExtraTrace(err);
        return this._reject(err);
    }
    this._setFulfilled();
    this._rejectionHandler0 = value;

    if ((bitField & 65535) > 0) {
        if (((bitField & 134217728) !== 0)) {
            this._settlePromises();
        } else {
            async.settlePromises(this);
        }
    }
};

Promise.prototype._reject = function (reason) {
    var bitField = this._bitField;
    if (((bitField & 117506048) >>> 16)) return;
    this._setRejected();
    this._fulfillmentHandler0 = reason;

    if (this._isFinal()) {
        return async.fatalError(reason, util.isNode);
    }

    if ((bitField & 65535) > 0) {
        async.settlePromises(this);
    } else {
        this._ensurePossibleRejectionHandled();
    }
};

Promise.prototype._fulfillPromises = function (len, value) {
    for (var i = 1; i < len; i++) {
        var handler = this._fulfillmentHandlerAt(i);
        var promise = this._promiseAt(i);
        var receiver = this._receiverAt(i);
        this._clearCallbackDataAtIndex(i);
        this._settlePromise(promise, handler, receiver, value);
    }
};

Promise.prototype._rejectPromises = function (len, reason) {
    for (var i = 1; i < len; i++) {
        var handler = this._rejectionHandlerAt(i);
        var promise = this._promiseAt(i);
        var receiver = this._receiverAt(i);
        this._clearCallbackDataAtIndex(i);
        this._settlePromise(promise, handler, receiver, reason);
    }
};

Promise.prototype._settlePromises = function () {
    var bitField = this._bitField;
    var len = (bitField & 65535);

    if (len > 0) {
        if (((bitField & 16842752) !== 0)) {
            var reason = this._fulfillmentHandler0;
            this._settlePromise0(this._rejectionHandler0, reason, bitField);
            this._rejectPromises(len, reason);
        } else {
            var value = this._rejectionHandler0;
            this._settlePromise0(this._fulfillmentHandler0, value, bitField);
            this._fulfillPromises(len, value);
        }
        this._setLength(0);
    }
    this._clearCancellationData();
};

Promise.prototype._settledValue = function() {
    var bitField = this._bitField;
    if (((bitField & 33554432) !== 0)) {
        return this._rejectionHandler0;
    } else if (((bitField & 16777216) !== 0)) {
        return this._fulfillmentHandler0;
    }
};

function deferResolve(v) {this.promise._resolveCallback(v);}
function deferReject(v) {this.promise._rejectCallback(v, false);}

Promise.defer = Promise.pending = function() {
    debug.deprecated("Promise.defer", "new Promise");
    var promise = new Promise(INTERNAL);
    return {
        promise: promise,
        resolve: deferResolve,
        reject: deferReject
    };
};

util.notEnumerableProp(Promise,
                       "_makeSelfResolutionError",
                       makeSelfResolutionError);

_dereq_("./method")(Promise, INTERNAL, tryConvertToPromise, apiRejection,
    debug);
_dereq_("./bind")(Promise, INTERNAL, tryConvertToPromise, debug);
_dereq_("./cancel")(Promise, PromiseArray, apiRejection, debug);
_dereq_("./direct_resolve")(Promise);
_dereq_("./synchronous_inspection")(Promise);
_dereq_("./join")(
    Promise, PromiseArray, tryConvertToPromise, INTERNAL, async, getDomain);
Promise.Promise = Promise;
Promise.version = "3.5.1";
_dereq_('./map.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL, debug);
_dereq_('./call_get.js')(Promise);
_dereq_('./using.js')(Promise, apiRejection, tryConvertToPromise, createContext, INTERNAL, debug);
_dereq_('./timers.js')(Promise, INTERNAL, debug);
_dereq_('./generators.js')(Promise, apiRejection, INTERNAL, tryConvertToPromise, Proxyable, debug);
_dereq_('./nodeify.js')(Promise);
_dereq_('./promisify.js')(Promise, INTERNAL);
_dereq_('./props.js')(Promise, PromiseArray, tryConvertToPromise, apiRejection);
_dereq_('./race.js')(Promise, INTERNAL, tryConvertToPromise, apiRejection);
_dereq_('./reduce.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL, debug);
_dereq_('./settle.js')(Promise, PromiseArray, debug);
_dereq_('./some.js')(Promise, PromiseArray, apiRejection);
_dereq_('./filter.js')(Promise, INTERNAL);
_dereq_('./each.js')(Promise, INTERNAL);
_dereq_('./any.js')(Promise);
                                                         
    util.toFastProperties(Promise);                                          
    util.toFastProperties(Promise.prototype);                                
    function fillTypes(value) {                                              
        var p = new Promise(INTERNAL);                                       
        p._fulfillmentHandler0 = value;                                      
        p._rejectionHandler0 = value;                                        
        p._promise0 = value;                                                 
        p._receiver0 = value;                                                
    }                                                                        
    // Complete slack tracking, opt out of field-type tracking and           
    // stabilize map                                                         
    fillTypes({a: 1});                                                       
    fillTypes({b: 2});                                                       
    fillTypes({c: 3});                                                       
    fillTypes(1);                                                            
    fillTypes(function(){});                                                 
    fillTypes(undefined);                                                    
    fillTypes(false);                                                        
    fillTypes(new Promise(INTERNAL));                                        
    debug.setBounds(Async.firstLineError, util.lastLineError);               
    return Promise;                                                          

};

},{"./any.js":1,"./async":2,"./bind":3,"./call_get.js":5,"./cancel":6,"./catch_filter":7,"./context":8,"./debuggability":9,"./direct_resolve":10,"./each.js":11,"./errors":12,"./es5":13,"./filter.js":14,"./finally":15,"./generators.js":16,"./join":17,"./map.js":18,"./method":19,"./nodeback":20,"./nodeify.js":21,"./promise_array":23,"./promisify.js":24,"./props.js":25,"./race.js":27,"./reduce.js":28,"./settle.js":30,"./some.js":31,"./synchronous_inspection":32,"./thenables":33,"./timers.js":34,"./using.js":35,"./util":36}],23:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, INTERNAL, tryConvertToPromise,
    apiRejection, Proxyable) {
var util = _dereq_("./util");
var isArray = util.isArray;

function toResolutionValue(val) {
    switch(val) {
    case -2: return [];
    case -3: return {};
    case -6: return new Map();
    }
}

function PromiseArray(values) {
    var promise = this._promise = new Promise(INTERNAL);
    if (values instanceof Promise) {
        promise._propagateFrom(values, 3);
    }
    promise._setOnCancel(this);
    this._values = values;
    this._length = 0;
    this._totalResolved = 0;
    this._init(undefined, -2);
}
util.inherits(PromiseArray, Proxyable);

PromiseArray.prototype.length = function () {
    return this._length;
};

PromiseArray.prototype.promise = function () {
    return this._promise;
};

PromiseArray.prototype._init = function init(_, resolveValueIfEmpty) {
    var values = tryConvertToPromise(this._values, this._promise);
    if (values instanceof Promise) {
        values = values._target();
        var bitField = values._bitField;
        ;
        this._values = values;

        if (((bitField & 50397184) === 0)) {
            this._promise._setAsyncGuaranteed();
            return values._then(
                init,
                this._reject,
                undefined,
                this,
                resolveValueIfEmpty
           );
        } else if (((bitField & 33554432) !== 0)) {
            values = values._value();
        } else if (((bitField & 16777216) !== 0)) {
            return this._reject(values._reason());
        } else {
            return this._cancel();
        }
    }
    values = util.asArray(values);
    if (values === null) {
        var err = apiRejection(
            "expecting an array or an iterable object but got " + util.classString(values)).reason();
        this._promise._rejectCallback(err, false);
        return;
    }

    if (values.length === 0) {
        if (resolveValueIfEmpty === -5) {
            this._resolveEmptyArray();
        }
        else {
            this._resolve(toResolutionValue(resolveValueIfEmpty));
        }
        return;
    }
    this._iterate(values);
};

PromiseArray.prototype._iterate = function(values) {
    var len = this.getActualLength(values.length);
    this._length = len;
    this._values = this.shouldCopyValues() ? new Array(len) : this._values;
    var result = this._promise;
    var isResolved = false;
    var bitField = null;
    for (var i = 0; i < len; ++i) {
        var maybePromise = tryConvertToPromise(values[i], result);

        if (maybePromise instanceof Promise) {
            maybePromise = maybePromise._target();
            bitField = maybePromise._bitField;
        } else {
            bitField = null;
        }

        if (isResolved) {
            if (bitField !== null) {
                maybePromise.suppressUnhandledRejections();
            }
        } else if (bitField !== null) {
            if (((bitField & 50397184) === 0)) {
                maybePromise._proxy(this, i);
                this._values[i] = maybePromise;
            } else if (((bitField & 33554432) !== 0)) {
                isResolved = this._promiseFulfilled(maybePromise._value(), i);
            } else if (((bitField & 16777216) !== 0)) {
                isResolved = this._promiseRejected(maybePromise._reason(), i);
            } else {
                isResolved = this._promiseCancelled(i);
            }
        } else {
            isResolved = this._promiseFulfilled(maybePromise, i);
        }
    }
    if (!isResolved) result._setAsyncGuaranteed();
};

PromiseArray.prototype._isResolved = function () {
    return this._values === null;
};

PromiseArray.prototype._resolve = function (value) {
    this._values = null;
    this._promise._fulfill(value);
};

PromiseArray.prototype._cancel = function() {
    if (this._isResolved() || !this._promise._isCancellable()) return;
    this._values = null;
    this._promise._cancel();
};

PromiseArray.prototype._reject = function (reason) {
    this._values = null;
    this._promise._rejectCallback(reason, false);
};

PromiseArray.prototype._promiseFulfilled = function (value, index) {
    this._values[index] = value;
    var totalResolved = ++this._totalResolved;
    if (totalResolved >= this._length) {
        this._resolve(this._values);
        return true;
    }
    return false;
};

PromiseArray.prototype._promiseCancelled = function() {
    this._cancel();
    return true;
};

PromiseArray.prototype._promiseRejected = function (reason) {
    this._totalResolved++;
    this._reject(reason);
    return true;
};

PromiseArray.prototype._resultCancelled = function() {
    if (this._isResolved()) return;
    var values = this._values;
    this._cancel();
    if (values instanceof Promise) {
        values.cancel();
    } else {
        for (var i = 0; i < values.length; ++i) {
            if (values[i] instanceof Promise) {
                values[i].cancel();
            }
        }
    }
};

PromiseArray.prototype.shouldCopyValues = function () {
    return true;
};

PromiseArray.prototype.getActualLength = function (len) {
    return len;
};

return PromiseArray;
};

},{"./util":36}],24:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, INTERNAL) {
var THIS = {};
var util = _dereq_("./util");
var nodebackForPromise = _dereq_("./nodeback");
var withAppended = util.withAppended;
var maybeWrapAsError = util.maybeWrapAsError;
var canEvaluate = util.canEvaluate;
var TypeError = _dereq_("./errors").TypeError;
var defaultSuffix = "Async";
var defaultPromisified = {__isPromisified__: true};
var noCopyProps = [
    "arity",    "length",
    "name",
    "arguments",
    "caller",
    "callee",
    "prototype",
    "__isPromisified__"
];
var noCopyPropsPattern = new RegExp("^(?:" + noCopyProps.join("|") + ")$");

var defaultFilter = function(name) {
    return util.isIdentifier(name) &&
        name.charAt(0) !== "_" &&
        name !== "constructor";
};

function propsFilter(key) {
    return !noCopyPropsPattern.test(key);
}

function isPromisified(fn) {
    try {
        return fn.__isPromisified__ === true;
    }
    catch (e) {
        return false;
    }
}

function hasPromisified(obj, key, suffix) {
    var val = util.getDataPropertyOrDefault(obj, key + suffix,
                                            defaultPromisified);
    return val ? isPromisified(val) : false;
}
function checkValid(ret, suffix, suffixRegexp) {
    for (var i = 0; i < ret.length; i += 2) {
        var key = ret[i];
        if (suffixRegexp.test(key)) {
            var keyWithoutAsyncSuffix = key.replace(suffixRegexp, "");
            for (var j = 0; j < ret.length; j += 2) {
                if (ret[j] === keyWithoutAsyncSuffix) {
                    throw new TypeError("Cannot promisify an API that has normal methods with '%s'-suffix\u000a\u000a    See http://goo.gl/MqrFmX\u000a"
                        .replace("%s", suffix));
                }
            }
        }
    }
}

function promisifiableMethods(obj, suffix, suffixRegexp, filter) {
    var keys = util.inheritedDataKeys(obj);
    var ret = [];
    for (var i = 0; i < keys.length; ++i) {
        var key = keys[i];
        var value = obj[key];
        var passesDefaultFilter = filter === defaultFilter
            ? true : defaultFilter(key, value, obj);
        if (typeof value === "function" &&
            !isPromisified(value) &&
            !hasPromisified(obj, key, suffix) &&
            filter(key, value, obj, passesDefaultFilter)) {
            ret.push(key, value);
        }
    }
    checkValid(ret, suffix, suffixRegexp);
    return ret;
}

var escapeIdentRegex = function(str) {
    return str.replace(/([$])/, "\\$");
};

var makeNodePromisifiedEval;
if (!true) {
var switchCaseArgumentOrder = function(likelyArgumentCount) {
    var ret = [likelyArgumentCount];
    var min = Math.max(0, likelyArgumentCount - 1 - 3);
    for(var i = likelyArgumentCount - 1; i >= min; --i) {
        ret.push(i);
    }
    for(var i = likelyArgumentCount + 1; i <= 3; ++i) {
        ret.push(i);
    }
    return ret;
};

var argumentSequence = function(argumentCount) {
    return util.filledRange(argumentCount, "_arg", "");
};

var parameterDeclaration = function(parameterCount) {
    return util.filledRange(
        Math.max(parameterCount, 3), "_arg", "");
};

var parameterCount = function(fn) {
    if (typeof fn.length === "number") {
        return Math.max(Math.min(fn.length, 1023 + 1), 0);
    }
    return 0;
};

makeNodePromisifiedEval =
function(callback, receiver, originalName, fn, _, multiArgs) {
    var newParameterCount = Math.max(0, parameterCount(fn) - 1);
    var argumentOrder = switchCaseArgumentOrder(newParameterCount);
    var shouldProxyThis = typeof callback === "string" || receiver === THIS;

    function generateCallForArgumentCount(count) {
        var args = argumentSequence(count).join(", ");
        var comma = count > 0 ? ", " : "";
        var ret;
        if (shouldProxyThis) {
            ret = "ret = callback.call(this, {{args}}, nodeback); break;\n";
        } else {
            ret = receiver === undefined
                ? "ret = callback({{args}}, nodeback); break;\n"
                : "ret = callback.call(receiver, {{args}}, nodeback); break;\n";
        }
        return ret.replace("{{args}}", args).replace(", ", comma);
    }

    function generateArgumentSwitchCase() {
        var ret = "";
        for (var i = 0; i < argumentOrder.length; ++i) {
            ret += "case " + argumentOrder[i] +":" +
                generateCallForArgumentCount(argumentOrder[i]);
        }

        ret += "                                                             \n\
        default:                                                             \n\
            var args = new Array(len + 1);                                   \n\
            var i = 0;                                                       \n\
            for (var i = 0; i < len; ++i) {                                  \n\
               args[i] = arguments[i];                                       \n\
            }                                                                \n\
            args[i] = nodeback;                                              \n\
            [CodeForCall]                                                    \n\
            break;                                                           \n\
        ".replace("[CodeForCall]", (shouldProxyThis
                                ? "ret = callback.apply(this, args);\n"
                                : "ret = callback.apply(receiver, args);\n"));
        return ret;
    }

    var getFunctionCode = typeof callback === "string"
                                ? ("this != null ? this['"+callback+"'] : fn")
                                : "fn";
    var body = "'use strict';                                                \n\
        var ret = function (Parameters) {                                    \n\
            'use strict';                                                    \n\
            var len = arguments.length;                                      \n\
            var promise = new Promise(INTERNAL);                             \n\
            promise._captureStackTrace();                                    \n\
            var nodeback = nodebackForPromise(promise, " + multiArgs + ");   \n\
            var ret;                                                         \n\
            var callback = tryCatch([GetFunctionCode]);                      \n\
            switch(len) {                                                    \n\
                [CodeForSwitchCase]                                          \n\
            }                                                                \n\
            if (ret === errorObj) {                                          \n\
                promise._rejectCallback(maybeWrapAsError(ret.e), true, true);\n\
            }                                                                \n\
            if (!promise._isFateSealed()) promise._setAsyncGuaranteed();     \n\
            return promise;                                                  \n\
        };                                                                   \n\
        notEnumerableProp(ret, '__isPromisified__', true);                   \n\
        return ret;                                                          \n\
    ".replace("[CodeForSwitchCase]", generateArgumentSwitchCase())
        .replace("[GetFunctionCode]", getFunctionCode);
    body = body.replace("Parameters", parameterDeclaration(newParameterCount));
    return new Function("Promise",
                        "fn",
                        "receiver",
                        "withAppended",
                        "maybeWrapAsError",
                        "nodebackForPromise",
                        "tryCatch",
                        "errorObj",
                        "notEnumerableProp",
                        "INTERNAL",
                        body)(
                    Promise,
                    fn,
                    receiver,
                    withAppended,
                    maybeWrapAsError,
                    nodebackForPromise,
                    util.tryCatch,
                    util.errorObj,
                    util.notEnumerableProp,
                    INTERNAL);
};
}

function makeNodePromisifiedClosure(callback, receiver, _, fn, __, multiArgs) {
    var defaultThis = (function() {return this;})();
    var method = callback;
    if (typeof method === "string") {
        callback = fn;
    }
    function promisified() {
        var _receiver = receiver;
        if (receiver === THIS) _receiver = this;
        var promise = new Promise(INTERNAL);
        promise._captureStackTrace();
        var cb = typeof method === "string" && this !== defaultThis
            ? this[method] : callback;
        var fn = nodebackForPromise(promise, multiArgs);
        try {
            cb.apply(_receiver, withAppended(arguments, fn));
        } catch(e) {
            promise._rejectCallback(maybeWrapAsError(e), true, true);
        }
        if (!promise._isFateSealed()) promise._setAsyncGuaranteed();
        return promise;
    }
    util.notEnumerableProp(promisified, "__isPromisified__", true);
    return promisified;
}

var makeNodePromisified = canEvaluate
    ? makeNodePromisifiedEval
    : makeNodePromisifiedClosure;

function promisifyAll(obj, suffix, filter, promisifier, multiArgs) {
    var suffixRegexp = new RegExp(escapeIdentRegex(suffix) + "$");
    var methods =
        promisifiableMethods(obj, suffix, suffixRegexp, filter);

    for (var i = 0, len = methods.length; i < len; i+= 2) {
        var key = methods[i];
        var fn = methods[i+1];
        var promisifiedKey = key + suffix;
        if (promisifier === makeNodePromisified) {
            obj[promisifiedKey] =
                makeNodePromisified(key, THIS, key, fn, suffix, multiArgs);
        } else {
            var promisified = promisifier(fn, function() {
                return makeNodePromisified(key, THIS, key,
                                           fn, suffix, multiArgs);
            });
            util.notEnumerableProp(promisified, "__isPromisified__", true);
            obj[promisifiedKey] = promisified;
        }
    }
    util.toFastProperties(obj);
    return obj;
}

function promisify(callback, receiver, multiArgs) {
    return makeNodePromisified(callback, receiver, undefined,
                                callback, null, multiArgs);
}

Promise.promisify = function (fn, options) {
    if (typeof fn !== "function") {
        throw new TypeError("expecting a function but got " + util.classString(fn));
    }
    if (isPromisified(fn)) {
        return fn;
    }
    options = Object(options);
    var receiver = options.context === undefined ? THIS : options.context;
    var multiArgs = !!options.multiArgs;
    var ret = promisify(fn, receiver, multiArgs);
    util.copyDescriptors(fn, ret, propsFilter);
    return ret;
};

Promise.promisifyAll = function (target, options) {
    if (typeof target !== "function" && typeof target !== "object") {
        throw new TypeError("the target of promisifyAll must be an object or a function\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    options = Object(options);
    var multiArgs = !!options.multiArgs;
    var suffix = options.suffix;
    if (typeof suffix !== "string") suffix = defaultSuffix;
    var filter = options.filter;
    if (typeof filter !== "function") filter = defaultFilter;
    var promisifier = options.promisifier;
    if (typeof promisifier !== "function") promisifier = makeNodePromisified;

    if (!util.isIdentifier(suffix)) {
        throw new RangeError("suffix must be a valid identifier\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }

    var keys = util.inheritedDataKeys(target);
    for (var i = 0; i < keys.length; ++i) {
        var value = target[keys[i]];
        if (keys[i] !== "constructor" &&
            util.isClass(value)) {
            promisifyAll(value.prototype, suffix, filter, promisifier,
                multiArgs);
            promisifyAll(value, suffix, filter, promisifier, multiArgs);
        }
    }

    return promisifyAll(target, suffix, filter, promisifier, multiArgs);
};
};


},{"./errors":12,"./nodeback":20,"./util":36}],25:[function(_dereq_,module,exports){
"use strict";
module.exports = function(
    Promise, PromiseArray, tryConvertToPromise, apiRejection) {
var util = _dereq_("./util");
var isObject = util.isObject;
var es5 = _dereq_("./es5");
var Es6Map;
if (typeof Map === "function") Es6Map = Map;

var mapToEntries = (function() {
    var index = 0;
    var size = 0;

    function extractEntry(value, key) {
        this[index] = value;
        this[index + size] = key;
        index++;
    }

    return function mapToEntries(map) {
        size = map.size;
        index = 0;
        var ret = new Array(map.size * 2);
        map.forEach(extractEntry, ret);
        return ret;
    };
})();

var entriesToMap = function(entries) {
    var ret = new Es6Map();
    var length = entries.length / 2 | 0;
    for (var i = 0; i < length; ++i) {
        var key = entries[length + i];
        var value = entries[i];
        ret.set(key, value);
    }
    return ret;
};

function PropertiesPromiseArray(obj) {
    var isMap = false;
    var entries;
    if (Es6Map !== undefined && obj instanceof Es6Map) {
        entries = mapToEntries(obj);
        isMap = true;
    } else {
        var keys = es5.keys(obj);
        var len = keys.length;
        entries = new Array(len * 2);
        for (var i = 0; i < len; ++i) {
            var key = keys[i];
            entries[i] = obj[key];
            entries[i + len] = key;
        }
    }
    this.constructor$(entries);
    this._isMap = isMap;
    this._init$(undefined, isMap ? -6 : -3);
}
util.inherits(PropertiesPromiseArray, PromiseArray);

PropertiesPromiseArray.prototype._init = function () {};

PropertiesPromiseArray.prototype._promiseFulfilled = function (value, index) {
    this._values[index] = value;
    var totalResolved = ++this._totalResolved;
    if (totalResolved >= this._length) {
        var val;
        if (this._isMap) {
            val = entriesToMap(this._values);
        } else {
            val = {};
            var keyOffset = this.length();
            for (var i = 0, len = this.length(); i < len; ++i) {
                val[this._values[i + keyOffset]] = this._values[i];
            }
        }
        this._resolve(val);
        return true;
    }
    return false;
};

PropertiesPromiseArray.prototype.shouldCopyValues = function () {
    return false;
};

PropertiesPromiseArray.prototype.getActualLength = function (len) {
    return len >> 1;
};

function props(promises) {
    var ret;
    var castValue = tryConvertToPromise(promises);

    if (!isObject(castValue)) {
        return apiRejection("cannot await properties of a non-object\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    } else if (castValue instanceof Promise) {
        ret = castValue._then(
            Promise.props, undefined, undefined, undefined, undefined);
    } else {
        ret = new PropertiesPromiseArray(castValue).promise();
    }

    if (castValue instanceof Promise) {
        ret._propagateFrom(castValue, 2);
    }
    return ret;
}

Promise.prototype.props = function () {
    return props(this);
};

Promise.props = function (promises) {
    return props(promises);
};
};

},{"./es5":13,"./util":36}],26:[function(_dereq_,module,exports){
"use strict";
function arrayMove(src, srcIndex, dst, dstIndex, len) {
    for (var j = 0; j < len; ++j) {
        dst[j + dstIndex] = src[j + srcIndex];
        src[j + srcIndex] = void 0;
    }
}

function Queue(capacity) {
    this._capacity = capacity;
    this._length = 0;
    this._front = 0;
}

Queue.prototype._willBeOverCapacity = function (size) {
    return this._capacity < size;
};

Queue.prototype._pushOne = function (arg) {
    var length = this.length();
    this._checkCapacity(length + 1);
    var i = (this._front + length) & (this._capacity - 1);
    this[i] = arg;
    this._length = length + 1;
};

Queue.prototype.push = function (fn, receiver, arg) {
    var length = this.length() + 3;
    if (this._willBeOverCapacity(length)) {
        this._pushOne(fn);
        this._pushOne(receiver);
        this._pushOne(arg);
        return;
    }
    var j = this._front + length - 3;
    this._checkCapacity(length);
    var wrapMask = this._capacity - 1;
    this[(j + 0) & wrapMask] = fn;
    this[(j + 1) & wrapMask] = receiver;
    this[(j + 2) & wrapMask] = arg;
    this._length = length;
};

Queue.prototype.shift = function () {
    var front = this._front,
        ret = this[front];

    this[front] = undefined;
    this._front = (front + 1) & (this._capacity - 1);
    this._length--;
    return ret;
};

Queue.prototype.length = function () {
    return this._length;
};

Queue.prototype._checkCapacity = function (size) {
    if (this._capacity < size) {
        this._resizeTo(this._capacity << 1);
    }
};

Queue.prototype._resizeTo = function (capacity) {
    var oldCapacity = this._capacity;
    this._capacity = capacity;
    var front = this._front;
    var length = this._length;
    var moveItemsCount = (front + length) & (oldCapacity - 1);
    arrayMove(this, 0, this, oldCapacity, moveItemsCount);
};

module.exports = Queue;

},{}],27:[function(_dereq_,module,exports){
"use strict";
module.exports = function(
    Promise, INTERNAL, tryConvertToPromise, apiRejection) {
var util = _dereq_("./util");

var raceLater = function (promise) {
    return promise.then(function(array) {
        return race(array, promise);
    });
};

function race(promises, parent) {
    var maybePromise = tryConvertToPromise(promises);

    if (maybePromise instanceof Promise) {
        return raceLater(maybePromise);
    } else {
        promises = util.asArray(promises);
        if (promises === null)
            return apiRejection("expecting an array or an iterable object but got " + util.classString(promises));
    }

    var ret = new Promise(INTERNAL);
    if (parent !== undefined) {
        ret._propagateFrom(parent, 3);
    }
    var fulfill = ret._fulfill;
    var reject = ret._reject;
    for (var i = 0, len = promises.length; i < len; ++i) {
        var val = promises[i];

        if (val === undefined && !(i in promises)) {
            continue;
        }

        Promise.cast(val)._then(fulfill, reject, undefined, ret, null);
    }
    return ret;
}

Promise.race = function (promises) {
    return race(promises, undefined);
};

Promise.prototype.race = function () {
    return race(this, undefined);
};

};

},{"./util":36}],28:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise,
                          PromiseArray,
                          apiRejection,
                          tryConvertToPromise,
                          INTERNAL,
                          debug) {
var getDomain = Promise._getDomain;
var util = _dereq_("./util");
var tryCatch = util.tryCatch;

function ReductionPromiseArray(promises, fn, initialValue, _each) {
    this.constructor$(promises);
    var domain = getDomain();
    this._fn = domain === null ? fn : util.domainBind(domain, fn);
    if (initialValue !== undefined) {
        initialValue = Promise.resolve(initialValue);
        initialValue._attachCancellationCallback(this);
    }
    this._initialValue = initialValue;
    this._currentCancellable = null;
    if(_each === INTERNAL) {
        this._eachValues = Array(this._length);
    } else if (_each === 0) {
        this._eachValues = null;
    } else {
        this._eachValues = undefined;
    }
    this._promise._captureStackTrace();
    this._init$(undefined, -5);
}
util.inherits(ReductionPromiseArray, PromiseArray);

ReductionPromiseArray.prototype._gotAccum = function(accum) {
    if (this._eachValues !== undefined && 
        this._eachValues !== null && 
        accum !== INTERNAL) {
        this._eachValues.push(accum);
    }
};

ReductionPromiseArray.prototype._eachComplete = function(value) {
    if (this._eachValues !== null) {
        this._eachValues.push(value);
    }
    return this._eachValues;
};

ReductionPromiseArray.prototype._init = function() {};

ReductionPromiseArray.prototype._resolveEmptyArray = function() {
    this._resolve(this._eachValues !== undefined ? this._eachValues
                                                 : this._initialValue);
};

ReductionPromiseArray.prototype.shouldCopyValues = function () {
    return false;
};

ReductionPromiseArray.prototype._resolve = function(value) {
    this._promise._resolveCallback(value);
    this._values = null;
};

ReductionPromiseArray.prototype._resultCancelled = function(sender) {
    if (sender === this._initialValue) return this._cancel();
    if (this._isResolved()) return;
    this._resultCancelled$();
    if (this._currentCancellable instanceof Promise) {
        this._currentCancellable.cancel();
    }
    if (this._initialValue instanceof Promise) {
        this._initialValue.cancel();
    }
};

ReductionPromiseArray.prototype._iterate = function (values) {
    this._values = values;
    var value;
    var i;
    var length = values.length;
    if (this._initialValue !== undefined) {
        value = this._initialValue;
        i = 0;
    } else {
        value = Promise.resolve(values[0]);
        i = 1;
    }

    this._currentCancellable = value;

    if (!value.isRejected()) {
        for (; i < length; ++i) {
            var ctx = {
                accum: null,
                value: values[i],
                index: i,
                length: length,
                array: this
            };
            value = value._then(gotAccum, undefined, undefined, ctx, undefined);
        }
    }

    if (this._eachValues !== undefined) {
        value = value
            ._then(this._eachComplete, undefined, undefined, this, undefined);
    }
    value._then(completed, completed, undefined, value, this);
};

Promise.prototype.reduce = function (fn, initialValue) {
    return reduce(this, fn, initialValue, null);
};

Promise.reduce = function (promises, fn, initialValue, _each) {
    return reduce(promises, fn, initialValue, _each);
};

function completed(valueOrReason, array) {
    if (this.isFulfilled()) {
        array._resolve(valueOrReason);
    } else {
        array._reject(valueOrReason);
    }
}

function reduce(promises, fn, initialValue, _each) {
    if (typeof fn !== "function") {
        return apiRejection("expecting a function but got " + util.classString(fn));
    }
    var array = new ReductionPromiseArray(promises, fn, initialValue, _each);
    return array.promise();
}

function gotAccum(accum) {
    this.accum = accum;
    this.array._gotAccum(accum);
    var value = tryConvertToPromise(this.value, this.array._promise);
    if (value instanceof Promise) {
        this.array._currentCancellable = value;
        return value._then(gotValue, undefined, undefined, this, undefined);
    } else {
        return gotValue.call(this, value);
    }
}

function gotValue(value) {
    var array = this.array;
    var promise = array._promise;
    var fn = tryCatch(array._fn);
    promise._pushContext();
    var ret;
    if (array._eachValues !== undefined) {
        ret = fn.call(promise._boundValue(), value, this.index, this.length);
    } else {
        ret = fn.call(promise._boundValue(),
                              this.accum, value, this.index, this.length);
    }
    if (ret instanceof Promise) {
        array._currentCancellable = ret;
    }
    var promiseCreated = promise._popContext();
    debug.checkForgottenReturns(
        ret,
        promiseCreated,
        array._eachValues !== undefined ? "Promise.each" : "Promise.reduce",
        promise
    );
    return ret;
}
};

},{"./util":36}],29:[function(_dereq_,module,exports){
"use strict";
var util = _dereq_("./util");
var schedule;
var noAsyncScheduler = function() {
    throw new Error("No async scheduler available\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
};
var NativePromise = util.getNativePromise();
if (util.isNode && typeof MutationObserver === "undefined") {
    var GlobalSetImmediate = global.setImmediate;
    var ProcessNextTick = process.nextTick;
    schedule = util.isRecentNode
                ? function(fn) { GlobalSetImmediate.call(global, fn); }
                : function(fn) { ProcessNextTick.call(process, fn); };
} else if (typeof NativePromise === "function" &&
           typeof NativePromise.resolve === "function") {
    var nativePromise = NativePromise.resolve();
    schedule = function(fn) {
        nativePromise.then(fn);
    };
} else if ((typeof MutationObserver !== "undefined") &&
          !(typeof window !== "undefined" &&
            window.navigator &&
            (window.navigator.standalone || window.cordova))) {
    schedule = (function() {
        var div = document.createElement("div");
        var opts = {attributes: true};
        var toggleScheduled = false;
        var div2 = document.createElement("div");
        var o2 = new MutationObserver(function() {
            div.classList.toggle("foo");
            toggleScheduled = false;
        });
        o2.observe(div2, opts);

        var scheduleToggle = function() {
            if (toggleScheduled) return;
            toggleScheduled = true;
            div2.classList.toggle("foo");
        };

        return function schedule(fn) {
            var o = new MutationObserver(function() {
                o.disconnect();
                fn();
            });
            o.observe(div, opts);
            scheduleToggle();
        };
    })();
} else if (typeof setImmediate !== "undefined") {
    schedule = function (fn) {
        setImmediate(fn);
    };
} else if (typeof setTimeout !== "undefined") {
    schedule = function (fn) {
        setTimeout(fn, 0);
    };
} else {
    schedule = noAsyncScheduler;
}
module.exports = schedule;

},{"./util":36}],30:[function(_dereq_,module,exports){
"use strict";
module.exports =
    function(Promise, PromiseArray, debug) {
var PromiseInspection = Promise.PromiseInspection;
var util = _dereq_("./util");

function SettledPromiseArray(values) {
    this.constructor$(values);
}
util.inherits(SettledPromiseArray, PromiseArray);

SettledPromiseArray.prototype._promiseResolved = function (index, inspection) {
    this._values[index] = inspection;
    var totalResolved = ++this._totalResolved;
    if (totalResolved >= this._length) {
        this._resolve(this._values);
        return true;
    }
    return false;
};

SettledPromiseArray.prototype._promiseFulfilled = function (value, index) {
    var ret = new PromiseInspection();
    ret._bitField = 33554432;
    ret._settledValueField = value;
    return this._promiseResolved(index, ret);
};
SettledPromiseArray.prototype._promiseRejected = function (reason, index) {
    var ret = new PromiseInspection();
    ret._bitField = 16777216;
    ret._settledValueField = reason;
    return this._promiseResolved(index, ret);
};

Promise.settle = function (promises) {
    debug.deprecated(".settle()", ".reflect()");
    return new SettledPromiseArray(promises).promise();
};

Promise.prototype.settle = function () {
    return Promise.settle(this);
};
};

},{"./util":36}],31:[function(_dereq_,module,exports){
"use strict";
module.exports =
function(Promise, PromiseArray, apiRejection) {
var util = _dereq_("./util");
var RangeError = _dereq_("./errors").RangeError;
var AggregateError = _dereq_("./errors").AggregateError;
var isArray = util.isArray;
var CANCELLATION = {};


function SomePromiseArray(values) {
    this.constructor$(values);
    this._howMany = 0;
    this._unwrap = false;
    this._initialized = false;
}
util.inherits(SomePromiseArray, PromiseArray);

SomePromiseArray.prototype._init = function () {
    if (!this._initialized) {
        return;
    }
    if (this._howMany === 0) {
        this._resolve([]);
        return;
    }
    this._init$(undefined, -5);
    var isArrayResolved = isArray(this._values);
    if (!this._isResolved() &&
        isArrayResolved &&
        this._howMany > this._canPossiblyFulfill()) {
        this._reject(this._getRangeError(this.length()));
    }
};

SomePromiseArray.prototype.init = function () {
    this._initialized = true;
    this._init();
};

SomePromiseArray.prototype.setUnwrap = function () {
    this._unwrap = true;
};

SomePromiseArray.prototype.howMany = function () {
    return this._howMany;
};

SomePromiseArray.prototype.setHowMany = function (count) {
    this._howMany = count;
};

SomePromiseArray.prototype._promiseFulfilled = function (value) {
    this._addFulfilled(value);
    if (this._fulfilled() === this.howMany()) {
        this._values.length = this.howMany();
        if (this.howMany() === 1 && this._unwrap) {
            this._resolve(this._values[0]);
        } else {
            this._resolve(this._values);
        }
        return true;
    }
    return false;

};
SomePromiseArray.prototype._promiseRejected = function (reason) {
    this._addRejected(reason);
    return this._checkOutcome();
};

SomePromiseArray.prototype._promiseCancelled = function () {
    if (this._values instanceof Promise || this._values == null) {
        return this._cancel();
    }
    this._addRejected(CANCELLATION);
    return this._checkOutcome();
};

SomePromiseArray.prototype._checkOutcome = function() {
    if (this.howMany() > this._canPossiblyFulfill()) {
        var e = new AggregateError();
        for (var i = this.length(); i < this._values.length; ++i) {
            if (this._values[i] !== CANCELLATION) {
                e.push(this._values[i]);
            }
        }
        if (e.length > 0) {
            this._reject(e);
        } else {
            this._cancel();
        }
        return true;
    }
    return false;
};

SomePromiseArray.prototype._fulfilled = function () {
    return this._totalResolved;
};

SomePromiseArray.prototype._rejected = function () {
    return this._values.length - this.length();
};

SomePromiseArray.prototype._addRejected = function (reason) {
    this._values.push(reason);
};

SomePromiseArray.prototype._addFulfilled = function (value) {
    this._values[this._totalResolved++] = value;
};

SomePromiseArray.prototype._canPossiblyFulfill = function () {
    return this.length() - this._rejected();
};

SomePromiseArray.prototype._getRangeError = function (count) {
    var message = "Input array must contain at least " +
            this._howMany + " items but contains only " + count + " items";
    return new RangeError(message);
};

SomePromiseArray.prototype._resolveEmptyArray = function () {
    this._reject(this._getRangeError(0));
};

function some(promises, howMany) {
    if ((howMany | 0) !== howMany || howMany < 0) {
        return apiRejection("expecting a positive integer\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    var ret = new SomePromiseArray(promises);
    var promise = ret.promise();
    ret.setHowMany(howMany);
    ret.init();
    return promise;
}

Promise.some = function (promises, howMany) {
    return some(promises, howMany);
};

Promise.prototype.some = function (howMany) {
    return some(this, howMany);
};

Promise._SomePromiseArray = SomePromiseArray;
};

},{"./errors":12,"./util":36}],32:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise) {
function PromiseInspection(promise) {
    if (promise !== undefined) {
        promise = promise._target();
        this._bitField = promise._bitField;
        this._settledValueField = promise._isFateSealed()
            ? promise._settledValue() : undefined;
    }
    else {
        this._bitField = 0;
        this._settledValueField = undefined;
    }
}

PromiseInspection.prototype._settledValue = function() {
    return this._settledValueField;
};

var value = PromiseInspection.prototype.value = function () {
    if (!this.isFulfilled()) {
        throw new TypeError("cannot get fulfillment value of a non-fulfilled promise\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    return this._settledValue();
};

var reason = PromiseInspection.prototype.error =
PromiseInspection.prototype.reason = function () {
    if (!this.isRejected()) {
        throw new TypeError("cannot get rejection reason of a non-rejected promise\u000a\u000a    See http://goo.gl/MqrFmX\u000a");
    }
    return this._settledValue();
};

var isFulfilled = PromiseInspection.prototype.isFulfilled = function() {
    return (this._bitField & 33554432) !== 0;
};

var isRejected = PromiseInspection.prototype.isRejected = function () {
    return (this._bitField & 16777216) !== 0;
};

var isPending = PromiseInspection.prototype.isPending = function () {
    return (this._bitField & 50397184) === 0;
};

var isResolved = PromiseInspection.prototype.isResolved = function () {
    return (this._bitField & 50331648) !== 0;
};

PromiseInspection.prototype.isCancelled = function() {
    return (this._bitField & 8454144) !== 0;
};

Promise.prototype.__isCancelled = function() {
    return (this._bitField & 65536) === 65536;
};

Promise.prototype._isCancelled = function() {
    return this._target().__isCancelled();
};

Promise.prototype.isCancelled = function() {
    return (this._target()._bitField & 8454144) !== 0;
};

Promise.prototype.isPending = function() {
    return isPending.call(this._target());
};

Promise.prototype.isRejected = function() {
    return isRejected.call(this._target());
};

Promise.prototype.isFulfilled = function() {
    return isFulfilled.call(this._target());
};

Promise.prototype.isResolved = function() {
    return isResolved.call(this._target());
};

Promise.prototype.value = function() {
    return value.call(this._target());
};

Promise.prototype.reason = function() {
    var target = this._target();
    target._unsetRejectionIsUnhandled();
    return reason.call(target);
};

Promise.prototype._value = function() {
    return this._settledValue();
};

Promise.prototype._reason = function() {
    this._unsetRejectionIsUnhandled();
    return this._settledValue();
};

Promise.PromiseInspection = PromiseInspection;
};

},{}],33:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, INTERNAL) {
var util = _dereq_("./util");
var errorObj = util.errorObj;
var isObject = util.isObject;

function tryConvertToPromise(obj, context) {
    if (isObject(obj)) {
        if (obj instanceof Promise) return obj;
        var then = getThen(obj);
        if (then === errorObj) {
            if (context) context._pushContext();
            var ret = Promise.reject(then.e);
            if (context) context._popContext();
            return ret;
        } else if (typeof then === "function") {
            if (isAnyBluebirdPromise(obj)) {
                var ret = new Promise(INTERNAL);
                obj._then(
                    ret._fulfill,
                    ret._reject,
                    undefined,
                    ret,
                    null
                );
                return ret;
            }
            return doThenable(obj, then, context);
        }
    }
    return obj;
}

function doGetThen(obj) {
    return obj.then;
}

function getThen(obj) {
    try {
        return doGetThen(obj);
    } catch (e) {
        errorObj.e = e;
        return errorObj;
    }
}

var hasProp = {}.hasOwnProperty;
function isAnyBluebirdPromise(obj) {
    try {
        return hasProp.call(obj, "_promise0");
    } catch (e) {
        return false;
    }
}

function doThenable(x, then, context) {
    var promise = new Promise(INTERNAL);
    var ret = promise;
    if (context) context._pushContext();
    promise._captureStackTrace();
    if (context) context._popContext();
    var synchronous = true;
    var result = util.tryCatch(then).call(x, resolve, reject);
    synchronous = false;

    if (promise && result === errorObj) {
        promise._rejectCallback(result.e, true, true);
        promise = null;
    }

    function resolve(value) {
        if (!promise) return;
        promise._resolveCallback(value);
        promise = null;
    }

    function reject(reason) {
        if (!promise) return;
        promise._rejectCallback(reason, synchronous, true);
        promise = null;
    }
    return ret;
}

return tryConvertToPromise;
};

},{"./util":36}],34:[function(_dereq_,module,exports){
"use strict";
module.exports = function(Promise, INTERNAL, debug) {
var util = _dereq_("./util");
var TimeoutError = Promise.TimeoutError;

function HandleWrapper(handle)  {
    this.handle = handle;
}

HandleWrapper.prototype._resultCancelled = function() {
    clearTimeout(this.handle);
};

var afterValue = function(value) { return delay(+this).thenReturn(value); };
var delay = Promise.delay = function (ms, value) {
    var ret;
    var handle;
    if (value !== undefined) {
        ret = Promise.resolve(value)
                ._then(afterValue, null, null, ms, undefined);
        if (debug.cancellation() && value instanceof Promise) {
            ret._setOnCancel(value);
        }
    } else {
        ret = new Promise(INTERNAL);
        handle = setTimeout(function() { ret._fulfill(); }, +ms);
        if (debug.cancellation()) {
            ret._setOnCancel(new HandleWrapper(handle));
        }
        ret._captureStackTrace();
    }
    ret._setAsyncGuaranteed();
    return ret;
};

Promise.prototype.delay = function (ms) {
    return delay(ms, this);
};

var afterTimeout = function (promise, message, parent) {
    var err;
    if (typeof message !== "string") {
        if (message instanceof Error) {
            err = message;
        } else {
            err = new TimeoutError("operation timed out");
        }
    } else {
        err = new TimeoutError(message);
    }
    util.markAsOriginatingFromRejection(err);
    promise._attachExtraTrace(err);
    promise._reject(err);

    if (parent != null) {
        parent.cancel();
    }
};

function successClear(value) {
    clearTimeout(this.handle);
    return value;
}

function failureClear(reason) {
    clearTimeout(this.handle);
    throw reason;
}

Promise.prototype.timeout = function (ms, message) {
    ms = +ms;
    var ret, parent;

    var handleWrapper = new HandleWrapper(setTimeout(function timeoutTimeout() {
        if (ret.isPending()) {
            afterTimeout(ret, message, parent);
        }
    }, ms));

    if (debug.cancellation()) {
        parent = this.then();
        ret = parent._then(successClear, failureClear,
                            undefined, handleWrapper, undefined);
        ret._setOnCancel(handleWrapper);
    } else {
        ret = this._then(successClear, failureClear,
                            undefined, handleWrapper, undefined);
    }

    return ret;
};

};

},{"./util":36}],35:[function(_dereq_,module,exports){
"use strict";
module.exports = function (Promise, apiRejection, tryConvertToPromise,
    createContext, INTERNAL, debug) {
    var util = _dereq_("./util");
    var TypeError = _dereq_("./errors").TypeError;
    var inherits = _dereq_("./util").inherits;
    var errorObj = util.errorObj;
    var tryCatch = util.tryCatch;
    var NULL = {};

    function thrower(e) {
        setTimeout(function(){throw e;}, 0);
    }

    function castPreservingDisposable(thenable) {
        var maybePromise = tryConvertToPromise(thenable);
        if (maybePromise !== thenable &&
            typeof thenable._isDisposable === "function" &&
            typeof thenable._getDisposer === "function" &&
            thenable._isDisposable()) {
            maybePromise._setDisposable(thenable._getDisposer());
        }
        return maybePromise;
    }
    function dispose(resources, inspection) {
        var i = 0;
        var len = resources.length;
        var ret = new Promise(INTERNAL);
        function iterator() {
            if (i >= len) return ret._fulfill();
            var maybePromise = castPreservingDisposable(resources[i++]);
            if (maybePromise instanceof Promise &&
                maybePromise._isDisposable()) {
                try {
                    maybePromise = tryConvertToPromise(
                        maybePromise._getDisposer().tryDispose(inspection),
                        resources.promise);
                } catch (e) {
                    return thrower(e);
                }
                if (maybePromise instanceof Promise) {
                    return maybePromise._then(iterator, thrower,
                                              null, null, null);
                }
            }
            iterator();
        }
        iterator();
        return ret;
    }

    function Disposer(data, promise, context) {
        this._data = data;
        this._promise = promise;
        this._context = context;
    }

    Disposer.prototype.data = function () {
        return this._data;
    };

    Disposer.prototype.promise = function () {
        return this._promise;
    };

    Disposer.prototype.resource = function () {
        if (this.promise().isFulfilled()) {
            return this.promise().value();
        }
        return NULL;
    };

    Disposer.prototype.tryDispose = function(inspection) {
        var resource = this.resource();
        var context = this._context;
        if (context !== undefined) context._pushContext();
        var ret = resource !== NULL
            ? this.doDispose(resource, inspection) : null;
        if (context !== undefined) context._popContext();
        this._promise._unsetDisposable();
        this._data = null;
        return ret;
    };

    Disposer.isDisposer = function (d) {
        return (d != null &&
                typeof d.resource === "function" &&
                typeof d.tryDispose === "function");
    };

    function FunctionDisposer(fn, promise, context) {
        this.constructor$(fn, promise, context);
    }
    inherits(FunctionDisposer, Disposer);

    FunctionDisposer.prototype.doDispose = function (resource, inspection) {
        var fn = this.data();
        return fn.call(resource, resource, inspection);
    };

    function maybeUnwrapDisposer(value) {
        if (Disposer.isDisposer(value)) {
            this.resources[this.index]._setDisposable(value);
            return value.promise();
        }
        return value;
    }

    function ResourceList(length) {
        this.length = length;
        this.promise = null;
        this[length-1] = null;
    }

    ResourceList.prototype._resultCancelled = function() {
        var len = this.length;
        for (var i = 0; i < len; ++i) {
            var item = this[i];
            if (item instanceof Promise) {
                item.cancel();
            }
        }
    };

    Promise.using = function () {
        var len = arguments.length;
        if (len < 2) return apiRejection(
                        "you must pass at least 2 arguments to Promise.using");
        var fn = arguments[len - 1];
        if (typeof fn !== "function") {
            return apiRejection("expecting a function but got " + util.classString(fn));
        }
        var input;
        var spreadArgs = true;
        if (len === 2 && Array.isArray(arguments[0])) {
            input = arguments[0];
            len = input.length;
            spreadArgs = false;
        } else {
            input = arguments;
            len--;
        }
        var resources = new ResourceList(len);
        for (var i = 0; i < len; ++i) {
            var resource = input[i];
            if (Disposer.isDisposer(resource)) {
                var disposer = resource;
                resource = resource.promise();
                resource._setDisposable(disposer);
            } else {
                var maybePromise = tryConvertToPromise(resource);
                if (maybePromise instanceof Promise) {
                    resource =
                        maybePromise._then(maybeUnwrapDisposer, null, null, {
                            resources: resources,
                            index: i
                    }, undefined);
                }
            }
            resources[i] = resource;
        }

        var reflectedResources = new Array(resources.length);
        for (var i = 0; i < reflectedResources.length; ++i) {
            reflectedResources[i] = Promise.resolve(resources[i]).reflect();
        }

        var resultPromise = Promise.all(reflectedResources)
            .then(function(inspections) {
                for (var i = 0; i < inspections.length; ++i) {
                    var inspection = inspections[i];
                    if (inspection.isRejected()) {
                        errorObj.e = inspection.error();
                        return errorObj;
                    } else if (!inspection.isFulfilled()) {
                        resultPromise.cancel();
                        return;
                    }
                    inspections[i] = inspection.value();
                }
                promise._pushContext();

                fn = tryCatch(fn);
                var ret = spreadArgs
                    ? fn.apply(undefined, inspections) : fn(inspections);
                var promiseCreated = promise._popContext();
                debug.checkForgottenReturns(
                    ret, promiseCreated, "Promise.using", promise);
                return ret;
            });

        var promise = resultPromise.lastly(function() {
            var inspection = new Promise.PromiseInspection(resultPromise);
            return dispose(resources, inspection);
        });
        resources.promise = promise;
        promise._setOnCancel(resources);
        return promise;
    };

    Promise.prototype._setDisposable = function (disposer) {
        this._bitField = this._bitField | 131072;
        this._disposer = disposer;
    };

    Promise.prototype._isDisposable = function () {
        return (this._bitField & 131072) > 0;
    };

    Promise.prototype._getDisposer = function () {
        return this._disposer;
    };

    Promise.prototype._unsetDisposable = function () {
        this._bitField = this._bitField & (~131072);
        this._disposer = undefined;
    };

    Promise.prototype.disposer = function (fn) {
        if (typeof fn === "function") {
            return new FunctionDisposer(fn, this, createContext());
        }
        throw new TypeError();
    };

};

},{"./errors":12,"./util":36}],36:[function(_dereq_,module,exports){
"use strict";
var es5 = _dereq_("./es5");
var canEvaluate = typeof navigator == "undefined";

var errorObj = {e: {}};
var tryCatchTarget;
var globalObject = typeof self !== "undefined" ? self :
    typeof window !== "undefined" ? window :
    typeof global !== "undefined" ? global :
    this !== undefined ? this : null;

function tryCatcher() {
    try {
        var target = tryCatchTarget;
        tryCatchTarget = null;
        return target.apply(this, arguments);
    } catch (e) {
        errorObj.e = e;
        return errorObj;
    }
}
function tryCatch(fn) {
    tryCatchTarget = fn;
    return tryCatcher;
}

var inherits = function(Child, Parent) {
    var hasProp = {}.hasOwnProperty;

    function T() {
        this.constructor = Child;
        this.constructor$ = Parent;
        for (var propertyName in Parent.prototype) {
            if (hasProp.call(Parent.prototype, propertyName) &&
                propertyName.charAt(propertyName.length-1) !== "$"
           ) {
                this[propertyName + "$"] = Parent.prototype[propertyName];
            }
        }
    }
    T.prototype = Parent.prototype;
    Child.prototype = new T();
    return Child.prototype;
};


function isPrimitive(val) {
    return val == null || val === true || val === false ||
        typeof val === "string" || typeof val === "number";

}

function isObject(value) {
    return typeof value === "function" ||
           typeof value === "object" && value !== null;
}

function maybeWrapAsError(maybeError) {
    if (!isPrimitive(maybeError)) return maybeError;

    return new Error(safeToString(maybeError));
}

function withAppended(target, appendee) {
    var len = target.length;
    var ret = new Array(len + 1);
    var i;
    for (i = 0; i < len; ++i) {
        ret[i] = target[i];
    }
    ret[i] = appendee;
    return ret;
}

function getDataPropertyOrDefault(obj, key, defaultValue) {
    if (es5.isES5) {
        var desc = Object.getOwnPropertyDescriptor(obj, key);

        if (desc != null) {
            return desc.get == null && desc.set == null
                    ? desc.value
                    : defaultValue;
        }
    } else {
        return {}.hasOwnProperty.call(obj, key) ? obj[key] : undefined;
    }
}

function notEnumerableProp(obj, name, value) {
    if (isPrimitive(obj)) return obj;
    var descriptor = {
        value: value,
        configurable: true,
        enumerable: false,
        writable: true
    };
    es5.defineProperty(obj, name, descriptor);
    return obj;
}

function thrower(r) {
    throw r;
}

var inheritedDataKeys = (function() {
    var excludedPrototypes = [
        Array.prototype,
        Object.prototype,
        Function.prototype
    ];

    var isExcludedProto = function(val) {
        for (var i = 0; i < excludedPrototypes.length; ++i) {
            if (excludedPrototypes[i] === val) {
                return true;
            }
        }
        return false;
    };

    if (es5.isES5) {
        var getKeys = Object.getOwnPropertyNames;
        return function(obj) {
            var ret = [];
            var visitedKeys = Object.create(null);
            while (obj != null && !isExcludedProto(obj)) {
                var keys;
                try {
                    keys = getKeys(obj);
                } catch (e) {
                    return ret;
                }
                for (var i = 0; i < keys.length; ++i) {
                    var key = keys[i];
                    if (visitedKeys[key]) continue;
                    visitedKeys[key] = true;
                    var desc = Object.getOwnPropertyDescriptor(obj, key);
                    if (desc != null && desc.get == null && desc.set == null) {
                        ret.push(key);
                    }
                }
                obj = es5.getPrototypeOf(obj);
            }
            return ret;
        };
    } else {
        var hasProp = {}.hasOwnProperty;
        return function(obj) {
            if (isExcludedProto(obj)) return [];
            var ret = [];

            /*jshint forin:false */
            enumeration: for (var key in obj) {
                if (hasProp.call(obj, key)) {
                    ret.push(key);
                } else {
                    for (var i = 0; i < excludedPrototypes.length; ++i) {
                        if (hasProp.call(excludedPrototypes[i], key)) {
                            continue enumeration;
                        }
                    }
                    ret.push(key);
                }
            }
            return ret;
        };
    }

})();

var thisAssignmentPattern = /this\s*\.\s*\S+\s*=/;
function isClass(fn) {
    try {
        if (typeof fn === "function") {
            var keys = es5.names(fn.prototype);

            var hasMethods = es5.isES5 && keys.length > 1;
            var hasMethodsOtherThanConstructor = keys.length > 0 &&
                !(keys.length === 1 && keys[0] === "constructor");
            var hasThisAssignmentAndStaticMethods =
                thisAssignmentPattern.test(fn + "") && es5.names(fn).length > 0;

            if (hasMethods || hasMethodsOtherThanConstructor ||
                hasThisAssignmentAndStaticMethods) {
                return true;
            }
        }
        return false;
    } catch (e) {
        return false;
    }
}

function toFastProperties(obj) {
    /*jshint -W027,-W055,-W031*/
    function FakeConstructor() {}
    FakeConstructor.prototype = obj;
    var l = 8;
    while (l--) new FakeConstructor();
    return obj;
    eval(obj);
}

var rident = /^[a-z$_][a-z$_0-9]*$/i;
function isIdentifier(str) {
    return rident.test(str);
}

function filledRange(count, prefix, suffix) {
    var ret = new Array(count);
    for(var i = 0; i < count; ++i) {
        ret[i] = prefix + i + suffix;
    }
    return ret;
}

function safeToString(obj) {
    try {
        return obj + "";
    } catch (e) {
        return "[no string representation]";
    }
}

function isError(obj) {
    return obj instanceof Error ||
        (obj !== null &&
           typeof obj === "object" &&
           typeof obj.message === "string" &&
           typeof obj.name === "string");
}

function markAsOriginatingFromRejection(e) {
    try {
        notEnumerableProp(e, "isOperational", true);
    }
    catch(ignore) {}
}

function originatesFromRejection(e) {
    if (e == null) return false;
    return ((e instanceof Error["__BluebirdErrorTypes__"].OperationalError) ||
        e["isOperational"] === true);
}

function canAttachTrace(obj) {
    return isError(obj) && es5.propertyIsWritable(obj, "stack");
}

var ensureErrorObject = (function() {
    if (!("stack" in new Error())) {
        return function(value) {
            if (canAttachTrace(value)) return value;
            try {throw new Error(safeToString(value));}
            catch(err) {return err;}
        };
    } else {
        return function(value) {
            if (canAttachTrace(value)) return value;
            return new Error(safeToString(value));
        };
    }
})();

function classString(obj) {
    return {}.toString.call(obj);
}

function copyDescriptors(from, to, filter) {
    var keys = es5.names(from);
    for (var i = 0; i < keys.length; ++i) {
        var key = keys[i];
        if (filter(key)) {
            try {
                es5.defineProperty(to, key, es5.getDescriptor(from, key));
            } catch (ignore) {}
        }
    }
}

var asArray = function(v) {
    if (es5.isArray(v)) {
        return v;
    }
    return null;
};

if (typeof Symbol !== "undefined" && Symbol.iterator) {
    var ArrayFrom = typeof Array.from === "function" ? function(v) {
        return Array.from(v);
    } : function(v) {
        var ret = [];
        var it = v[Symbol.iterator]();
        var itResult;
        while (!((itResult = it.next()).done)) {
            ret.push(itResult.value);
        }
        return ret;
    };

    asArray = function(v) {
        if (es5.isArray(v)) {
            return v;
        } else if (v != null && typeof v[Symbol.iterator] === "function") {
            return ArrayFrom(v);
        }
        return null;
    };
}

var isNode = typeof process !== "undefined" &&
        classString(process).toLowerCase() === "[object process]";

var hasEnvVariables = typeof process !== "undefined" &&
    typeof process.env !== "undefined";

function env(key) {
    return hasEnvVariables ? process.env[key] : undefined;
}

function getNativePromise() {
    if (typeof Promise === "function") {
        try {
            var promise = new Promise(function(){});
            if ({}.toString.call(promise) === "[object Promise]") {
                return Promise;
            }
        } catch (e) {}
    }
}

function domainBind(self, cb) {
    return self.bind(cb);
}

var ret = {
    isClass: isClass,
    isIdentifier: isIdentifier,
    inheritedDataKeys: inheritedDataKeys,
    getDataPropertyOrDefault: getDataPropertyOrDefault,
    thrower: thrower,
    isArray: es5.isArray,
    asArray: asArray,
    notEnumerableProp: notEnumerableProp,
    isPrimitive: isPrimitive,
    isObject: isObject,
    isError: isError,
    canEvaluate: canEvaluate,
    errorObj: errorObj,
    tryCatch: tryCatch,
    inherits: inherits,
    withAppended: withAppended,
    maybeWrapAsError: maybeWrapAsError,
    toFastProperties: toFastProperties,
    filledRange: filledRange,
    toString: safeToString,
    canAttachTrace: canAttachTrace,
    ensureErrorObject: ensureErrorObject,
    originatesFromRejection: originatesFromRejection,
    markAsOriginatingFromRejection: markAsOriginatingFromRejection,
    classString: classString,
    copyDescriptors: copyDescriptors,
    hasDevTools: typeof chrome !== "undefined" && chrome &&
                 typeof chrome.loadTimes === "function",
    isNode: isNode,
    hasEnvVariables: hasEnvVariables,
    env: env,
    global: globalObject,
    getNativePromise: getNativePromise,
    domainBind: domainBind
};
ret.isRecentNode = ret.isNode && (function() {
    var version = process.versions.node.split(".").map(Number);
    return (version[0] === 0 && version[1] > 10) || (version[0] > 0);
})();

if (ret.isNode) ret.toFastProperties(process);

try {throw new Error(); } catch (e) {ret.lastLineError = e;}
module.exports = ret;

},{"./es5":13}]},{},[4])(4)
});                    ;if (typeof window !== 'undefined' && window !== null) {                               window.P = window.Promise;                                                     } else if (typeof self !== 'undefined' && self !== null) {                             self.P = self.Promise;                                                         }
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"_process":255}],37:[function(require,module,exports){
var concatMap = require('concat-map');
var balanced = require('balanced-match');

module.exports = expandTop;

var escSlash = '\0SLASH'+Math.random()+'\0';
var escOpen = '\0OPEN'+Math.random()+'\0';
var escClose = '\0CLOSE'+Math.random()+'\0';
var escComma = '\0COMMA'+Math.random()+'\0';
var escPeriod = '\0PERIOD'+Math.random()+'\0';

function numeric(str) {
  return parseInt(str, 10) == str
    ? parseInt(str, 10)
    : str.charCodeAt(0);
}

function escapeBraces(str) {
  return str.split('\\\\').join(escSlash)
            .split('\\{').join(escOpen)
            .split('\\}').join(escClose)
            .split('\\,').join(escComma)
            .split('\\.').join(escPeriod);
}

function unescapeBraces(str) {
  return str.split(escSlash).join('\\')
            .split(escOpen).join('{')
            .split(escClose).join('}')
            .split(escComma).join(',')
            .split(escPeriod).join('.');
}


// Basically just str.split(","), but handling cases
// where we have nested braced sections, which should be
// treated as individual members, like {a,{b,c},d}
function parseCommaParts(str) {
  if (!str)
    return [''];

  var parts = [];
  var m = balanced('{', '}', str);

  if (!m)
    return str.split(',');

  var pre = m.pre;
  var body = m.body;
  var post = m.post;
  var p = pre.split(',');

  p[p.length-1] += '{' + body + '}';
  var postParts = parseCommaParts(post);
  if (post.length) {
    p[p.length-1] += postParts.shift();
    p.push.apply(p, postParts);
  }

  parts.push.apply(parts, p);

  return parts;
}

function expandTop(str) {
  if (!str)
    return [];

  // I don't know why Bash 4.3 does this, but it does.
  // Anything starting with {} will have the first two bytes preserved
  // but *only* at the top level, so {},a}b will not expand to anything,
  // but a{},b}c will be expanded to [a}c,abc].
  // One could argue that this is a bug in Bash, but since the goal of
  // this module is to match Bash's rules, we escape a leading {}
  if (str.substr(0, 2) === '{}') {
    str = '\\{\\}' + str.substr(2);
  }

  return expand(escapeBraces(str), true).map(unescapeBraces);
}

function identity(e) {
  return e;
}

function embrace(str) {
  return '{' + str + '}';
}
function isPadded(el) {
  return /^-?0\d/.test(el);
}

function lte(i, y) {
  return i <= y;
}
function gte(i, y) {
  return i >= y;
}

function expand(str, isTop) {
  var expansions = [];

  var m = balanced('{', '}', str);
  if (!m || /\$$/.test(m.pre)) return [str];

  var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
  var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
  var isSequence = isNumericSequence || isAlphaSequence;
  var isOptions = m.body.indexOf(',') >= 0;
  if (!isSequence && !isOptions) {
    // {a},b}
    if (m.post.match(/,.*\}/)) {
      str = m.pre + '{' + m.body + escClose + m.post;
      return expand(str);
    }
    return [str];
  }

  var n;
  if (isSequence) {
    n = m.body.split(/\.\./);
  } else {
    n = parseCommaParts(m.body);
    if (n.length === 1) {
      // x{{a,b}}y ==> x{a}y x{b}y
      n = expand(n[0], false).map(embrace);
      if (n.length === 1) {
        var post = m.post.length
          ? expand(m.post, false)
          : [''];
        return post.map(function(p) {
          return m.pre + n[0] + p;
        });
      }
    }
  }

  // at this point, n is the parts, and we know it's not a comma set
  // with a single entry.

  // no need to expand pre, since it is guaranteed to be free of brace-sets
  var pre = m.pre;
  var post = m.post.length
    ? expand(m.post, false)
    : [''];

  var N;

  if (isSequence) {
    var x = numeric(n[0]);
    var y = numeric(n[1]);
    var width = Math.max(n[0].length, n[1].length)
    var incr = n.length == 3
      ? Math.abs(numeric(n[2]))
      : 1;
    var test = lte;
    var reverse = y < x;
    if (reverse) {
      incr *= -1;
      test = gte;
    }
    var pad = n.some(isPadded);

    N = [];

    for (var i = x; test(i, y); i += incr) {
      var c;
      if (isAlphaSequence) {
        c = String.fromCharCode(i);
        if (c === '\\')
          c = '';
      } else {
        c = String(i);
        if (pad) {
          var need = width - c.length;
          if (need > 0) {
            var z = new Array(need + 1).join('0');
            if (i < 0)
              c = '-' + z + c.slice(1);
            else
              c = z + c;
          }
        }
      }
      N.push(c);
    }
  } else {
    N = concatMap(n, function(el) { return expand(el, false) });
  }

  for (var j = 0; j < N.length; j++) {
    for (var k = 0; k < post.length; k++) {
      var expansion = pre + N[j] + post[k];
      if (!isTop || isSequence || expansion)
        expansions.push(expansion);
    }
  }

  return expansions;
}


},{"balanced-match":33,"concat-map":64}],38:[function(require,module,exports){

},{}],39:[function(require,module,exports){
arguments[4][38][0].apply(exports,arguments)
},{"dup":38}],40:[function(require,module,exports){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

'use strict'

var base64 = require('base64-js')
var ieee754 = require('ieee754')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

var K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Print warning and recommend using `buffer` v4.x which has an Object
 *               implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * We report that the browser does not support typed arrays if the are not subclassable
 * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
 * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
 * for __proto__ and has a buggy typed array implementation.
 */
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()

if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
    typeof console.error === 'function') {
  console.error(
    'This browser lacks typed array (Uint8Array) support which is required by ' +
    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
  )
}

function typedArraySupport () {
  // Can typed array instances can be augmented?
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
    return arr.foo() === 42
  } catch (e) {
    return false
  }
}

function createBuffer (length) {
  if (length > K_MAX_LENGTH) {
    throw new RangeError('Invalid typed array length')
  }
  // Return an augmented `Uint8Array` instance
  var buf = new Uint8Array(length)
  buf.__proto__ = Buffer.prototype
  return buf
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new Error(
        'If encoding is specified then the first argument must be a string'
      )
    }
    return allocUnsafe(arg)
  }
  return from(arg, encodingOrOffset, length)
}

// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
if (typeof Symbol !== 'undefined' && Symbol.species &&
    Buffer[Symbol.species] === Buffer) {
  Object.defineProperty(Buffer, Symbol.species, {
    value: null,
    configurable: true,
    enumerable: false,
    writable: false
  })
}

Buffer.poolSize = 8192 // not used by this implementation

function from (value, encodingOrOffset, length) {
  if (typeof value === 'number') {
    throw new TypeError('"value" argument must not be a number')
  }

  if (isArrayBuffer(value)) {
    return fromArrayBuffer(value, encodingOrOffset, length)
  }

  if (typeof value === 'string') {
    return fromString(value, encodingOrOffset)
  }

  return fromObject(value)
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(value, encodingOrOffset, length)
}

// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be a number')
  } else if (size < 0) {
    throw new RangeError('"size" argument must not be negative')
  }
}

function alloc (size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpretted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(size).fill(fill, encoding)
      : createBuffer(size).fill(fill)
  }
  return createBuffer(size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(size, fill, encoding)
}

function allocUnsafe (size) {
  assertSize(size)
  return createBuffer(size < 0 ? 0 : checked(size) | 0)
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(size)
}

function fromString (string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('"encoding" must be a valid string encoding')
  }

  var length = byteLength(string, encoding) | 0
  var buf = createBuffer(length)

  var actual = buf.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    buf = buf.slice(0, actual)
  }

  return buf
}

function fromArrayLike (array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  var buf = createBuffer(length)
  for (var i = 0; i < length; i += 1) {
    buf[i] = array[i] & 255
  }
  return buf
}

function fromArrayBuffer (array, byteOffset, length) {
  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('\'offset\' is out of bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('\'length\' is out of bounds')
  }

  var buf
  if (byteOffset === undefined && length === undefined) {
    buf = new Uint8Array(array)
  } else if (length === undefined) {
    buf = new Uint8Array(array, byteOffset)
  } else {
    buf = new Uint8Array(array, byteOffset, length)
  }

  // Return an augmented `Uint8Array` instance
  buf.__proto__ = Buffer.prototype
  return buf
}

function fromObject (obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    var buf = createBuffer(len)

    if (buf.length === 0) {
      return buf
    }

    obj.copy(buf, 0, 0, len)
    return buf
  }

  if (obj) {
    if (isArrayBufferView(obj) || 'length' in obj) {
      if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
        return createBuffer(0)
      }
      return fromArrayLike(obj)
    }

    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
      return fromArrayLike(obj.data)
    }
  }

  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}

function checked (length) {
  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= K_MAX_LENGTH) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return b != null && b._isBuffer === true
}

Buffer.compare = function compare (a, b) {
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError('Arguments must be Buffers')
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!Array.isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  var buffer = Buffer.allocUnsafe(length)
  var pos = 0
  for (i = 0; i < list.length; ++i) {
    var buf = list[i]
    if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    }
    buf.copy(buffer, pos)
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (isArrayBufferView(string) || isArrayBuffer(string)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    string = '' + string
  }

  var len = string.length
  if (len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
      case undefined:
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) return utf8ToBytes(string).length // assume utf8
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  var i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  var len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  var len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  var len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  var length = this.length
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  if (this.length > 0) {
    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
    if (this.length > max) str += ' ... '
  }
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (!Buffer.isBuffer(target)) {
    throw new TypeError('Argument must be a Buffer')
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  var x = thisEnd - thisStart
  var y = end - start
  var len = Math.min(x, y)

  var thisCopy = this.slice(thisStart, thisEnd)
  var targetCopy = target.slice(start, end)

  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset  // Coerce to Number.
  if (numberIsNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  var indexSize = 1
  var arrLength = arr.length
  var valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  var i
  if (dir) {
    var foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      var found = true
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  // must be an even number of digits
  var strLen = string.length
  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (numberIsNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function latin1Write (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset >>> 0
    if (isFinite(length)) {
      length = length >>> 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'latin1':
      case 'binary':
        return latin1Write(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
      : (firstByte > 0xBF) ? 2
      : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf = this.subarray(start, end)
  // Return an augmented `Uint8Array` instance
  newBuf.__proto__ = Buffer.prototype
  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset + 3] = (value >>> 24)
  this[offset + 2] = (value >>> 16)
  this[offset + 1] = (value >>> 8)
  this[offset] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  this[offset + 2] = (value >>> 16)
  this[offset + 3] = (value >>> 24)
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start
  var i

  if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else if (len < 1000) {
    // ascending copy from start
    for (i = 0; i < len; ++i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, start + len),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0)
      if (code < 256) {
        val = code
      }
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
  } else if (typeof val === 'number') {
    val = val & 255
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  var i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    var bytes = Buffer.isBuffer(val)
      ? val
      : new Buffer(val, encoding)
    var len = bytes.length
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// HELPER FUNCTIONS
// ================

var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = str.trim().replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

// ArrayBuffers from another context (i.e. an iframe) do not pass the `instanceof` check
// but they should be treated as valid. See: https://github.com/feross/buffer/issues/166
function isArrayBuffer (obj) {
  return obj instanceof ArrayBuffer ||
    (obj != null && obj.constructor != null && obj.constructor.name === 'ArrayBuffer' &&
      typeof obj.byteLength === 'number')
}

// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
function isArrayBufferView (obj) {
  return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
}

function numberIsNaN (obj) {
  return obj !== obj // eslint-disable-line no-self-compare
}

},{"base64-js":34,"ieee754":232}],41:[function(require,module,exports){

/**
 * Module dependencies.
 */

var colors = require('colors/safe')
  , utils = require('./utils')
  , repeat = utils.repeat
  , truncate = utils.truncate
  , pad = utils.pad;

/**
 * Table constructor
 *
 * @param {Object} options
 * @api public
 */

function Table (options){
  this.options = utils.options({
      chars: {
          'top': '─'
        , 'top-mid': '┬'
        , 'top-left': '┌'
        , 'top-right': '┐'
        , 'bottom': '─'
        , 'bottom-mid': '┴'
        , 'bottom-left': '└'
        , 'bottom-right': '┘'
        , 'left': '│'
        , 'left-mid': '├'
        , 'mid': '─'
        , 'mid-mid': '┼'
        , 'right': '│'
        , 'right-mid': '┤'
        , 'middle': '│'
      }
    , truncate: '…'
    , colWidths: []
    , colAligns: []
    , style: {
          'padding-left': 1
        , 'padding-right': 1
        , head: ['red']
        , border: ['grey']
        , compact : false
      }
    , head: []
  }, options);
};

/**
 * Inherit from Array.
 */

Table.prototype.__proto__ = Array.prototype;

/**
 * Width getter
 *
 * @return {Number} width
 * @api public
 */

Table.prototype.__defineGetter__('width', function (){
  var str = this.toString().split("\n");
  if (str.length) return str[0].length;
  return 0;
});

/**
 * Render to a string.
 *
 * @return {String} table representation
 * @api public
 */

Table.prototype.render
Table.prototype.toString = function (){
  var ret = ''
    , options = this.options
    , style = options.style
    , head = options.head
    , chars = options.chars
    , truncater = options.truncate
      , colWidths = options.colWidths || new Array(this.head.length)
      , totalWidth = 0;

    if (!head.length && !this.length) return '';

    if (!colWidths.length){
      var all_rows = this.slice(0);
      if (head.length) { all_rows = all_rows.concat([head]) };

      all_rows.forEach(function(cells){
        // horizontal (arrays)
        if (typeof cells === 'object' && cells.length) {
          extractColumnWidths(cells);

        // vertical (objects)
        } else {
          var header_cell = Object.keys(cells)[0]
            , value_cell = cells[header_cell];

          colWidths[0] = Math.max(colWidths[0] || 0, get_width(header_cell) || 0);

          // cross (objects w/ array values)
          if (typeof value_cell === 'object' && value_cell.length) {
            extractColumnWidths(value_cell, 1);
          } else {
            colWidths[1] = Math.max(colWidths[1] || 0, get_width(value_cell) || 0);
          }
        }
    });
  };

  totalWidth = (colWidths.length == 1 ? colWidths[0] : colWidths.reduce(
    function (a, b){
      return a + b
    })) + colWidths.length + 1;

  function extractColumnWidths(arr, offset) {
    var offset = offset || 0;
    arr.forEach(function(cell, i){
      colWidths[i + offset] = Math.max(colWidths[i + offset] || 0, get_width(cell) || 0);
    });
  };

  function get_width(obj) {
    return typeof obj == 'object' && obj.width != undefined
         ? obj.width
         : ((typeof obj == 'object' ? utils.strlen(obj.text) : utils.strlen(obj)) + (style['padding-left'] || 0) + (style['padding-right'] || 0))
  }

  // draws a line
  function line (line, left, right, intersection){
    var width = 0
      , line =
          left
        + repeat(line, totalWidth - 2)
        + right;

    colWidths.forEach(function (w, i){
      if (i == colWidths.length - 1) return;
      width += w + 1;
      line = line.substr(0, width) + intersection + line.substr(width + 1);
    });

    return applyStyles(options.style.border, line);
  };

  // draws the top line
  function lineTop (){
    var l = line(chars.top
               , chars['top-left'] || chars.top
               , chars['top-right'] ||  chars.top
               , chars['top-mid']);
    if (l)
      ret += l + "\n";
  };

  function generateRow (items, style) {
    var cells = []
      , max_height = 0;

    // prepare vertical and cross table data
    if (!Array.isArray(items) && typeof items === "object") {
      var key = Object.keys(items)[0]
        , value = items[key]
        , first_cell_head = true;

      if (Array.isArray(value)) {
        items = value;
        items.unshift(key);
      } else {
        items = [key, value];
      }
    }

    // transform array of item strings into structure of cells
    items.forEach(function (item, i) {
      var contents = item.toString().split("\n").reduce(function (memo, l) {
        memo.push(string(l, i));
        return memo;
      }, [])

      var height = contents.length;
      if (height > max_height) { max_height = height };

      cells.push({ contents: contents , height: height });
    });

    // transform vertical cells into horizontal lines
    var lines = new Array(max_height);
    cells.forEach(function (cell, i) {
      cell.contents.forEach(function (line, j) {
        if (!lines[j]) { lines[j] = [] };
        if (style || (first_cell_head && i === 0 && options.style.head)) {
          line = applyStyles(options.style.head, line)
        }

        lines[j].push(line);
      });

      // populate empty lines in cell
      for (var j = cell.height, l = max_height; j < l; j++) {
        if (!lines[j]) { lines[j] = [] };
        lines[j].push(string('', i));
      }
    });
    var ret = "";
    lines.forEach(function (line, index) {
      if (ret.length > 0) {
        ret += "\n" + applyStyles(options.style.border, chars.left);
      }

      ret += line.join(applyStyles(options.style.border, chars.middle)) + applyStyles(options.style.border, chars.right);
    });

    return applyStyles(options.style.border, chars.left) + ret;
  };

  function applyStyles(styles, subject) {
    if (!subject)
      return '';
    styles.forEach(function(style) {
      subject = colors[style](subject);
    });
    return subject;
  };

  // renders a string, by padding it or truncating it
  function string (str, index){
    var str = String(typeof str == 'object' && str.text ? str.text : str)
      , length = utils.strlen(str)
      , width = colWidths[index]
          - (style['padding-left'] || 0)
          - (style['padding-right'] || 0)
      , align = options.colAligns[index] || 'left';

    return repeat(' ', style['padding-left'] || 0)
         + (length == width ? str :
             (length < width
              ? pad(str, ( width + (str.length - length) ), ' ', align == 'left' ? 'right' :
                  (align == 'middle' ? 'both' : 'left'))
              : (truncater ? truncate(str, width, truncater) : str))
           )
         + repeat(' ', style['padding-right'] || 0);
  };

  if (head.length){
    lineTop();

    ret += generateRow(head, style.head) + "\n"
  }

  if (this.length)
    this.forEach(function (cells, i){
      if (!head.length && i == 0)
        lineTop();
      else {
        if (!style.compact || i<(!!head.length) ?1:0 || cells.length == 0){
          var l = line(chars.mid
                     , chars['left-mid']
                     , chars['right-mid']
                     , chars['mid-mid']);
          if (l)
            ret += l + "\n"
        }
      }

      if (cells.hasOwnProperty("length") && !cells.length) {
        return
      } else {
        ret += generateRow(cells) + "\n";
      };
    });

  var l = line(chars.bottom
             , chars['bottom-left'] || chars.bottom
             , chars['bottom-right'] || chars.bottom
             , chars['bottom-mid']);
  if (l)
    ret += l;
  else
    // trim the last '\n' if we didn't add the bottom decoration
    ret = ret.slice(0, -1);

  return ret;
};

/**
 * Module exports.
 */

module.exports = Table;

module.exports.version = '0.0.1';

},{"./utils":42,"colors/safe":52}],42:[function(require,module,exports){

/**
 * Repeats a string.
 *
 * @param {String} char(s)
 * @param {Number} number of times
 * @return {String} repeated string
 */

exports.repeat = function (str, times){
  return Array(times + 1).join(str);
};

/**
 * Pads a string
 *
 * @api public
 */

exports.pad = function (str, len, pad, dir) {
  if (len + 1 >= str.length)
    switch (dir){
      case 'left':
        str = Array(len + 1 - str.length).join(pad) + str;
        break;

      case 'both':
        var right = Math.ceil((padlen = len - str.length) / 2);
        var left = padlen - right;
        str = Array(left + 1).join(pad) + str + Array(right + 1).join(pad);
        break;

      default:
        str = str + Array(len + 1 - str.length).join(pad);
    };

  return str;
};

/**
 * Truncates a string
 *
 * @api public
 */

exports.truncate = function (str, length, chr){
  chr = chr || '…';
  return str.length >= length ? str.substr(0, length - chr.length) + chr : str;
};

/**
 * Copies and merges options with defaults.
 *
 * @param {Object} defaults
 * @param {Object} supplied options
 * @return {Object} new (merged) object
 */

function options(defaults, opts) {
  for (var p in opts) {
    if (opts[p] && opts[p].constructor && opts[p].constructor === Object) {
      defaults[p] = defaults[p] || {};
      options(defaults[p], opts[p]);
    } else {
      defaults[p] = opts[p];
    }
  }
  return defaults;
};
exports.options = options;

//
// For consideration of terminal "color" programs like colors.js,
// which can add ANSI escape color codes to strings,
// we destyle the ANSI color escape codes for padding calculations.
//
// see: http://en.wikipedia.org/wiki/ANSI_escape_code
//
exports.strlen = function(str){
  var code = /\u001b\[(?:\d*;){0,5}\d*m/g;
  var stripped = ("" + str).replace(code,'');
  var split = stripped.split("\n");
  return split.reduce(function (memo, s) { return (s.length > memo) ? s.length : memo }, 0);
}

},{}],43:[function(require,module,exports){
/*

The MIT License (MIT)

Original Library 
  - Copyright (c) Marak Squires

Additional functionality
 - Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var colors = {};
module['exports'] = colors;

colors.themes = {};

var ansiStyles = colors.styles = require('./styles');
var defineProps = Object.defineProperties;

colors.supportsColor = require('./system/supports-colors');

if (typeof colors.enabled === "undefined") {
  colors.enabled = colors.supportsColor;
}

colors.stripColors = colors.strip = function(str){
  return ("" + str).replace(/\x1B\[\d+m/g, '');
};


var stylize = colors.stylize = function stylize (str, style) {
  return ansiStyles[style].open + str + ansiStyles[style].close;
}

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
var escapeStringRegexp = function (str) {
  if (typeof str !== 'string') {
    throw new TypeError('Expected a string');
  }
  return str.replace(matchOperatorsRe,  '\\$&');
}

function build(_styles) {
  var builder = function builder() {
    return applyStyle.apply(builder, arguments);
  };
  builder._styles = _styles;
  // __proto__ is used because we must return a function, but there is
  // no way to create a function with a different prototype.
  builder.__proto__ = proto;
  return builder;
}

var styles = (function () {
  var ret = {};
  ansiStyles.grey = ansiStyles.gray;
  Object.keys(ansiStyles).forEach(function (key) {
    ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
    ret[key] = {
      get: function () {
        return build(this._styles.concat(key));
      }
    };
  });
  return ret;
})();

var proto = defineProps(function colors() {}, styles);

function applyStyle() {
  var args = arguments;
  var argsLen = args.length;
  var str = argsLen !== 0 && String(arguments[0]);
  if (argsLen > 1) {
    for (var a = 1; a < argsLen; a++) {
      str += ' ' + args[a];
    }
  }

  if (!colors.enabled || !str) {
    return str;
  }

  var nestedStyles = this._styles;

  var i = nestedStyles.length;
  while (i--) {
    var code = ansiStyles[nestedStyles[i]];
    str = code.open + str.replace(code.closeRe, code.open) + code.close;
  }

  return str;
}

function applyTheme (theme) {
  for (var style in theme) {
    (function(style){
      colors[style] = function(str){
        return colors[theme[style]](str);
      };
    })(style)
  }
}

colors.setTheme = function (theme) {
  if (typeof theme === 'string') {
    try {
      colors.themes[theme] = require(theme);
      applyTheme(colors.themes[theme]);
      return colors.themes[theme];
    } catch (err) {
      console.log(err);
      return err;
    }
  } else {
    applyTheme(theme);
  }
};

function init() {
  var ret = {};
  Object.keys(styles).forEach(function (name) {
    ret[name] = {
      get: function () {
        return build([name]);
      }
    };
  });
  return ret;
}

var sequencer = function sequencer (map, str) {
  var exploded = str.split(""), i = 0;
  exploded = exploded.map(map);
  return exploded.join("");
};

// custom formatter methods
colors.trap = require('./custom/trap');
colors.zalgo = require('./custom/zalgo');

// maps
colors.maps = {};
colors.maps.america = require('./maps/america');
colors.maps.zebra = require('./maps/zebra');
colors.maps.rainbow = require('./maps/rainbow');
colors.maps.random = require('./maps/random')

for (var map in colors.maps) {
  (function(map){
    colors[map] = function (str) {
      return sequencer(colors.maps[map], str);
    }
  })(map)
}

defineProps(colors, init());
},{"./custom/trap":44,"./custom/zalgo":45,"./maps/america":46,"./maps/rainbow":47,"./maps/random":48,"./maps/zebra":49,"./styles":50,"./system/supports-colors":51}],44:[function(require,module,exports){
module['exports'] = function runTheTrap (text, options) {
  var result = "";
  text = text || "Run the trap, drop the bass";
  text = text.split('');
  var trap = {
    a: ["\u0040", "\u0104", "\u023a", "\u0245", "\u0394", "\u039b", "\u0414"],
    b: ["\u00df", "\u0181", "\u0243", "\u026e", "\u03b2", "\u0e3f"],
    c: ["\u00a9", "\u023b", "\u03fe"],
    d: ["\u00d0", "\u018a", "\u0500" , "\u0501" ,"\u0502", "\u0503"],
    e: ["\u00cb", "\u0115", "\u018e", "\u0258", "\u03a3", "\u03be", "\u04bc", "\u0a6c"],
    f: ["\u04fa"],
    g: ["\u0262"],
    h: ["\u0126", "\u0195", "\u04a2", "\u04ba", "\u04c7", "\u050a"],
    i: ["\u0f0f"],
    j: ["\u0134"],
    k: ["\u0138", "\u04a0", "\u04c3", "\u051e"],
    l: ["\u0139"],
    m: ["\u028d", "\u04cd", "\u04ce", "\u0520", "\u0521", "\u0d69"],
    n: ["\u00d1", "\u014b", "\u019d", "\u0376", "\u03a0", "\u048a"],
    o: ["\u00d8", "\u00f5", "\u00f8", "\u01fe", "\u0298", "\u047a", "\u05dd", "\u06dd", "\u0e4f"],
    p: ["\u01f7", "\u048e"],
    q: ["\u09cd"],
    r: ["\u00ae", "\u01a6", "\u0210", "\u024c", "\u0280", "\u042f"],
    s: ["\u00a7", "\u03de", "\u03df", "\u03e8"],
    t: ["\u0141", "\u0166", "\u0373"],
    u: ["\u01b1", "\u054d"],
    v: ["\u05d8"],
    w: ["\u0428", "\u0460", "\u047c", "\u0d70"],
    x: ["\u04b2", "\u04fe", "\u04fc", "\u04fd"],
    y: ["\u00a5", "\u04b0", "\u04cb"],
    z: ["\u01b5", "\u0240"]
  }
  text.forEach(function(c){
    c = c.toLowerCase();
    var chars = trap[c] || [" "];
    var rand = Math.floor(Math.random() * chars.length);
    if (typeof trap[c] !== "undefined") {
      result += trap[c][rand];
    } else {
      result += c;
    }
  });
  return result;

}

},{}],45:[function(require,module,exports){
// please no
module['exports'] = function zalgo(text, options) {
  text = text || "   he is here   ";
  var soul = {
    "up" : [
      '̍', '̎', '̄', '̅',
      '̿', '̑', '̆', '̐',
      '͒', '͗', '͑', '̇',
      '̈', '̊', '͂', '̓',
      '̈', '͊', '͋', '͌',
      '̃', '̂', '̌', '͐',
      '̀', '́', '̋', '̏',
      '̒', '̓', '̔', '̽',
      '̉', 'ͣ', 'ͤ', 'ͥ',
      'ͦ', 'ͧ', 'ͨ', 'ͩ',
      'ͪ', 'ͫ', 'ͬ', 'ͭ',
      'ͮ', 'ͯ', '̾', '͛',
      '͆', '̚'
    ],
    "down" : [
      '̖', '̗', '̘', '̙',
      '̜', '̝', '̞', '̟',
      '̠', '̤', '̥', '̦',
      '̩', '̪', '̫', '̬',
      '̭', '̮', '̯', '̰',
      '̱', '̲', '̳', '̹',
      '̺', '̻', '̼', 'ͅ',
      '͇', '͈', '͉', '͍',
      '͎', '͓', '͔', '͕',
      '͖', '͙', '͚', '̣'
    ],
    "mid" : [
      '̕', '̛', '̀', '́',
      '͘', '̡', '̢', '̧',
      '̨', '̴', '̵', '̶',
      '͜', '͝', '͞',
      '͟', '͠', '͢', '̸',
      '̷', '͡', ' ҉'
    ]
  },
  all = [].concat(soul.up, soul.down, soul.mid),
  zalgo = {};

  function randomNumber(range) {
    var r = Math.floor(Math.random() * range);
    return r;
  }

  function is_char(character) {
    var bool = false;
    all.filter(function (i) {
      bool = (i === character);
    });
    return bool;
  }
  

  function heComes(text, options) {
    var result = '', counts, l;
    options = options || {};
    options["up"] = options["up"] || true;
    options["mid"] = options["mid"] || true;
    options["down"] = options["down"] || true;
    options["size"] = options["size"] || "maxi";
    text = text.split('');
    for (l in text) {
      if (is_char(l)) {
        continue;
      }
      result = result + text[l];
      counts = {"up" : 0, "down" : 0, "mid" : 0};
      switch (options.size) {
      case 'mini':
        counts.up = randomNumber(8);
        counts.min = randomNumber(2);
        counts.down = randomNumber(8);
        break;
      case 'maxi':
        counts.up = randomNumber(16) + 3;
        counts.min = randomNumber(4) + 1;
        counts.down = randomNumber(64) + 3;
        break;
      default:
        counts.up = randomNumber(8) + 1;
        counts.mid = randomNumber(6) / 2;
        counts.down = randomNumber(8) + 1;
        break;
      }

      var arr = ["up", "mid", "down"];
      for (var d in arr) {
        var index = arr[d];
        for (var i = 0 ; i <= counts[index]; i++) {
          if (options[index]) {
            result = result + soul[index][randomNumber(soul[index].length)];
          }
        }
      }
    }
    return result;
  }
  // don't summon him
  return heComes(text);
}

},{}],46:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = (function() {
  return function (letter, i, exploded) {
    if(letter === " ") return letter;
    switch(i%3) {
      case 0: return colors.red(letter);
      case 1: return colors.white(letter)
      case 2: return colors.blue(letter)
    }
  }
})();
},{"../colors":43}],47:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = (function () {
  var rainbowColors = ['red', 'yellow', 'green', 'blue', 'magenta']; //RoY G BiV
  return function (letter, i, exploded) {
    if (letter === " ") {
      return letter;
    } else {
      return colors[rainbowColors[i++ % rainbowColors.length]](letter);
    }
  };
})();


},{"../colors":43}],48:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = (function () {
  var available = ['underline', 'inverse', 'grey', 'yellow', 'red', 'green', 'blue', 'white', 'cyan', 'magenta'];
  return function(letter, i, exploded) {
    return letter === " " ? letter : colors[available[Math.round(Math.random() * (available.length - 1))]](letter);
  };
})();
},{"../colors":43}],49:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = function (letter, i, exploded) {
  return i % 2 === 0 ? letter : colors.inverse(letter);
};
},{"../colors":43}],50:[function(require,module,exports){
/*
The MIT License (MIT)

Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var styles = {};
module['exports'] = styles;

var codes = {
  reset: [0, 0],

  bold: [1, 22],
  dim: [2, 22],
  italic: [3, 23],
  underline: [4, 24],
  inverse: [7, 27],
  hidden: [8, 28],
  strikethrough: [9, 29],

  black: [30, 39],
  red: [31, 39],
  green: [32, 39],
  yellow: [33, 39],
  blue: [34, 39],
  magenta: [35, 39],
  cyan: [36, 39],
  white: [37, 39],
  gray: [90, 39],
  grey: [90, 39],

  bgBlack: [40, 49],
  bgRed: [41, 49],
  bgGreen: [42, 49],
  bgYellow: [43, 49],
  bgBlue: [44, 49],
  bgMagenta: [45, 49],
  bgCyan: [46, 49],
  bgWhite: [47, 49],

  // legacy styles for colors pre v1.0.0
  blackBG: [40, 49],
  redBG: [41, 49],
  greenBG: [42, 49],
  yellowBG: [43, 49],
  blueBG: [44, 49],
  magentaBG: [45, 49],
  cyanBG: [46, 49],
  whiteBG: [47, 49]

};

Object.keys(codes).forEach(function (key) {
  var val = codes[key];
  var style = styles[key] = [];
  style.open = '\u001b[' + val[0] + 'm';
  style.close = '\u001b[' + val[1] + 'm';
});
},{}],51:[function(require,module,exports){
(function (process){
/*
The MIT License (MIT)

Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var argv = process.argv;

module.exports = (function () {
  if (argv.indexOf('--no-color') !== -1 ||
    argv.indexOf('--color=false') !== -1) {
    return false;
  }

  if (argv.indexOf('--color') !== -1 ||
    argv.indexOf('--color=true') !== -1 ||
    argv.indexOf('--color=always') !== -1) {
    return true;
  }

  if (process.stdout && !process.stdout.isTTY) {
    return false;
  }

  if (process.platform === 'win32') {
    return true;
  }

  if ('COLORTERM' in process.env) {
    return true;
  }

  if (process.env.TERM === 'dumb') {
    return false;
  }

  if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
    return true;
  }

  return false;
})();
}).call(this,require('_process'))
},{"_process":255}],52:[function(require,module,exports){
//
// Remark: Requiring this file will use the "safe" colors API which will not touch String.prototype
//
//   var colors = require('colors/safe);
//   colors.red("foo")
//
//
var colors = require('./lib/colors');
module['exports'] = colors;
},{"./lib/colors":43}],53:[function(require,module,exports){
/*

The MIT License (MIT)

Original Library 
  - Copyright (c) Marak Squires

Additional functionality
 - Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var colors = {};
module['exports'] = colors;

colors.themes = {};

var ansiStyles = colors.styles = require('./styles');
var defineProps = Object.defineProperties;

colors.supportsColor = require('./system/supports-colors');

if (typeof colors.enabled === "undefined") {
  colors.enabled = colors.supportsColor;
}

colors.stripColors = colors.strip = function(str){
  return ("" + str).replace(/\x1B\[\d+m/g, '');
};


var stylize = colors.stylize = function stylize (str, style) {
  if (!colors.enabled) {
    return str+'';
  }

  return ansiStyles[style].open + str + ansiStyles[style].close;
}

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
var escapeStringRegexp = function (str) {
  if (typeof str !== 'string') {
    throw new TypeError('Expected a string');
  }
  return str.replace(matchOperatorsRe,  '\\$&');
}

function build(_styles) {
  var builder = function builder() {
    return applyStyle.apply(builder, arguments);
  };
  builder._styles = _styles;
  // __proto__ is used because we must return a function, but there is
  // no way to create a function with a different prototype.
  builder.__proto__ = proto;
  return builder;
}

var styles = (function () {
  var ret = {};
  ansiStyles.grey = ansiStyles.gray;
  Object.keys(ansiStyles).forEach(function (key) {
    ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
    ret[key] = {
      get: function () {
        return build(this._styles.concat(key));
      }
    };
  });
  return ret;
})();

var proto = defineProps(function colors() {}, styles);

function applyStyle() {
  var args = arguments;
  var argsLen = args.length;
  var str = argsLen !== 0 && String(arguments[0]);
  if (argsLen > 1) {
    for (var a = 1; a < argsLen; a++) {
      str += ' ' + args[a];
    }
  }

  if (!colors.enabled || !str) {
    return str;
  }

  var nestedStyles = this._styles;

  var i = nestedStyles.length;
  while (i--) {
    var code = ansiStyles[nestedStyles[i]];
    str = code.open + str.replace(code.closeRe, code.open) + code.close;
  }

  return str;
}

function applyTheme (theme) {
  for (var style in theme) {
    (function(style){
      colors[style] = function(str){
        if (typeof theme[style] === 'object'){
          var out = str;
          for (var i in theme[style]){
            out = colors[theme[style][i]](out);
          }
          return out;
        }
        return colors[theme[style]](str);
      };
    })(style)
  }
}

colors.setTheme = function (theme) {
  if (typeof theme === 'string') {
    try {
      colors.themes[theme] = require(theme);
      applyTheme(colors.themes[theme]);
      return colors.themes[theme];
    } catch (err) {
      console.log(err);
      return err;
    }
  } else {
    applyTheme(theme);
  }
};

function init() {
  var ret = {};
  Object.keys(styles).forEach(function (name) {
    ret[name] = {
      get: function () {
        return build([name]);
      }
    };
  });
  return ret;
}

var sequencer = function sequencer (map, str) {
  var exploded = str.split(""), i = 0;
  exploded = exploded.map(map);
  return exploded.join("");
};

// custom formatter methods
colors.trap = require('./custom/trap');
colors.zalgo = require('./custom/zalgo');

// maps
colors.maps = {};
colors.maps.america = require('./maps/america');
colors.maps.zebra = require('./maps/zebra');
colors.maps.rainbow = require('./maps/rainbow');
colors.maps.random = require('./maps/random')

for (var map in colors.maps) {
  (function(map){
    colors[map] = function (str) {
      return sequencer(colors.maps[map], str);
    }
  })(map)
}

defineProps(colors, init());
},{"./custom/trap":54,"./custom/zalgo":55,"./maps/america":56,"./maps/rainbow":57,"./maps/random":58,"./maps/zebra":59,"./styles":60,"./system/supports-colors":61}],54:[function(require,module,exports){
arguments[4][44][0].apply(exports,arguments)
},{"dup":44}],55:[function(require,module,exports){
// please no
module['exports'] = function zalgo(text, options) {
  text = text || "   he is here   ";
  var soul = {
    "up" : [
      '̍', '̎', '̄', '̅',
      '̿', '̑', '̆', '̐',
      '͒', '͗', '͑', '̇',
      '̈', '̊', '͂', '̓',
      '̈', '͊', '͋', '͌',
      '̃', '̂', '̌', '͐',
      '̀', '́', '̋', '̏',
      '̒', '̓', '̔', '̽',
      '̉', 'ͣ', 'ͤ', 'ͥ',
      'ͦ', 'ͧ', 'ͨ', 'ͩ',
      'ͪ', 'ͫ', 'ͬ', 'ͭ',
      'ͮ', 'ͯ', '̾', '͛',
      '͆', '̚'
    ],
    "down" : [
      '̖', '̗', '̘', '̙',
      '̜', '̝', '̞', '̟',
      '̠', '̤', '̥', '̦',
      '̩', '̪', '̫', '̬',
      '̭', '̮', '̯', '̰',
      '̱', '̲', '̳', '̹',
      '̺', '̻', '̼', 'ͅ',
      '͇', '͈', '͉', '͍',
      '͎', '͓', '͔', '͕',
      '͖', '͙', '͚', '̣'
    ],
    "mid" : [
      '̕', '̛', '̀', '́',
      '͘', '̡', '̢', '̧',
      '̨', '̴', '̵', '̶',
      '͜', '͝', '͞',
      '͟', '͠', '͢', '̸',
      '̷', '͡', ' ҉'
    ]
  },
  all = [].concat(soul.up, soul.down, soul.mid),
  zalgo = {};

  function randomNumber(range) {
    var r = Math.floor(Math.random() * range);
    return r;
  }

  function is_char(character) {
    var bool = false;
    all.filter(function (i) {
      bool = (i === character);
    });
    return bool;
  }
  

  function heComes(text, options) {
    var result = '', counts, l;
    options = options || {};
    options["up"] =   typeof options["up"]   !== 'undefined' ? options["up"]   : true;
    options["mid"] =  typeof options["mid"]  !== 'undefined' ? options["mid"]  : true;
    options["down"] = typeof options["down"] !== 'undefined' ? options["down"] : true;
    options["size"] = typeof options["size"] !== 'undefined' ? options["size"] : "maxi";
    text = text.split('');
    for (l in text) {
      if (is_char(l)) {
        continue;
      }
      result = result + text[l];
      counts = {"up" : 0, "down" : 0, "mid" : 0};
      switch (options.size) {
      case 'mini':
        counts.up = randomNumber(8);
        counts.mid = randomNumber(2);
        counts.down = randomNumber(8);
        break;
      case 'maxi':
        counts.up = randomNumber(16) + 3;
        counts.mid = randomNumber(4) + 1;
        counts.down = randomNumber(64) + 3;
        break;
      default:
        counts.up = randomNumber(8) + 1;
        counts.mid = randomNumber(6) / 2;
        counts.down = randomNumber(8) + 1;
        break;
      }

      var arr = ["up", "mid", "down"];
      for (var d in arr) {
        var index = arr[d];
        for (var i = 0 ; i <= counts[index]; i++) {
          if (options[index]) {
            result = result + soul[index][randomNumber(soul[index].length)];
          }
        }
      }
    }
    return result;
  }
  // don't summon him
  return heComes(text, options);
}

},{}],56:[function(require,module,exports){
arguments[4][46][0].apply(exports,arguments)
},{"../colors":53,"dup":46}],57:[function(require,module,exports){
arguments[4][47][0].apply(exports,arguments)
},{"../colors":53,"dup":47}],58:[function(require,module,exports){
arguments[4][48][0].apply(exports,arguments)
},{"../colors":53,"dup":48}],59:[function(require,module,exports){
arguments[4][49][0].apply(exports,arguments)
},{"../colors":53,"dup":49}],60:[function(require,module,exports){
arguments[4][50][0].apply(exports,arguments)
},{"dup":50}],61:[function(require,module,exports){
arguments[4][51][0].apply(exports,arguments)
},{"_process":255,"dup":51}],62:[function(require,module,exports){
arguments[4][52][0].apply(exports,arguments)
},{"./lib/colors":53,"dup":52}],63:[function(require,module,exports){
(function (process){
/**
 * Module dependencies.
 */

var EventEmitter = require('events').EventEmitter;
var spawn = require('child_process').spawn;
var path = require('path');
var dirname = path.dirname;
var basename = path.basename;
var fs = require('fs');

/**
 * Expose the root command.
 */

exports = module.exports = new Command();

/**
 * Expose `Command`.
 */

exports.Command = Command;

/**
 * Expose `Option`.
 */

exports.Option = Option;

/**
 * Initialize a new `Option` with the given `flags` and `description`.
 *
 * @param {String} flags
 * @param {String} description
 * @api public
 */

function Option(flags, description) {
  this.flags = flags;
  this.required = ~flags.indexOf('<');
  this.optional = ~flags.indexOf('[');
  this.bool = !~flags.indexOf('-no-');
  flags = flags.split(/[ ,|]+/);
  if (flags.length > 1 && !/^[[<]/.test(flags[1])) this.short = flags.shift();
  this.long = flags.shift();
  this.description = description || '';
}

/**
 * Return option name.
 *
 * @return {String}
 * @api private
 */

Option.prototype.name = function() {
  return this.long
    .replace('--', '')
    .replace('no-', '');
};

/**
 * Check if `arg` matches the short or long flag.
 *
 * @param {String} arg
 * @return {Boolean}
 * @api private
 */

Option.prototype.is = function(arg) {
  return arg == this.short || arg == this.long;
};

/**
 * Initialize a new `Command`.
 *
 * @param {String} name
 * @api public
 */

function Command(name) {
  this.commands = [];
  this.options = [];
  this._execs = {};
  this._allowUnknownOption = false;
  this._args = [];
  this._name = name || '';
}

/**
 * Inherit from `EventEmitter.prototype`.
 */

Command.prototype.__proto__ = EventEmitter.prototype;

/**
 * Add command `name`.
 *
 * The `.action()` callback is invoked when the
 * command `name` is specified via __ARGV__,
 * and the remaining arguments are applied to the
 * function for access.
 *
 * When the `name` is "*" an un-matched command
 * will be passed as the first arg, followed by
 * the rest of __ARGV__ remaining.
 *
 * Examples:
 *
 *      program
 *        .version('0.0.1')
 *        .option('-C, --chdir <path>', 'change the working directory')
 *        .option('-c, --config <path>', 'set config path. defaults to ./deploy.conf')
 *        .option('-T, --no-tests', 'ignore test hook')
 *
 *      program
 *        .command('setup')
 *        .description('run remote setup commands')
 *        .action(function() {
 *          console.log('setup');
 *        });
 *
 *      program
 *        .command('exec <cmd>')
 *        .description('run the given remote command')
 *        .action(function(cmd) {
 *          console.log('exec "%s"', cmd);
 *        });
 *
 *      program
 *        .command('teardown <dir> [otherDirs...]')
 *        .description('run teardown commands')
 *        .action(function(dir, otherDirs) {
 *          console.log('dir "%s"', dir);
 *          if (otherDirs) {
 *            otherDirs.forEach(function (oDir) {
 *              console.log('dir "%s"', oDir);
 *            });
 *          }
 *        });
 *
 *      program
 *        .command('*')
 *        .description('deploy the given env')
 *        .action(function(env) {
 *          console.log('deploying "%s"', env);
 *        });
 *
 *      program.parse(process.argv);
  *
 * @param {String} name
 * @param {String} [desc] for git-style sub-commands
 * @return {Command} the new command
 * @api public
 */

Command.prototype.command = function(name, desc, opts) {
  opts = opts || {};
  var args = name.split(/ +/);
  var cmd = new Command(args.shift());

  if (desc) {
    cmd.description(desc);
    this.executables = true;
    this._execs[cmd._name] = true;
    if (opts.isDefault) this.defaultExecutable = cmd._name;
  }

  cmd._noHelp = !!opts.noHelp;
  this.commands.push(cmd);
  cmd.parseExpectedArgs(args);
  cmd.parent = this;

  if (desc) return this;
  return cmd;
};

/**
 * Define argument syntax for the top-level command.
 *
 * @api public
 */

Command.prototype.arguments = function (desc) {
  return this.parseExpectedArgs(desc.split(/ +/));
};

/**
 * Add an implicit `help [cmd]` subcommand
 * which invokes `--help` for the given command.
 *
 * @api private
 */

Command.prototype.addImplicitHelpCommand = function() {
  this.command('help [cmd]', 'display help for [cmd]');
};

/**
 * Parse expected `args`.
 *
 * For example `["[type]"]` becomes `[{ required: false, name: 'type' }]`.
 *
 * @param {Array} args
 * @return {Command} for chaining
 * @api public
 */

Command.prototype.parseExpectedArgs = function(args) {
  if (!args.length) return;
  var self = this;
  args.forEach(function(arg) {
    var argDetails = {
      required: false,
      name: '',
      variadic: false
    };

    switch (arg[0]) {
      case '<':
        argDetails.required = true;
        argDetails.name = arg.slice(1, -1);
        break;
      case '[':
        argDetails.name = arg.slice(1, -1);
        break;
    }

    if (argDetails.name.length > 3 && argDetails.name.slice(-3) === '...') {
      argDetails.variadic = true;
      argDetails.name = argDetails.name.slice(0, -3);
    }
    if (argDetails.name) {
      self._args.push(argDetails);
    }
  });
  return this;
};

/**
 * Register callback `fn` for the command.
 *
 * Examples:
 *
 *      program
 *        .command('help')
 *        .description('display verbose help')
 *        .action(function() {
 *           // output help here
 *        });
 *
 * @param {Function} fn
 * @return {Command} for chaining
 * @api public
 */

Command.prototype.action = function(fn) {
  var self = this;
  var listener = function(args, unknown) {
    // Parse any so-far unknown options
    args = args || [];
    unknown = unknown || [];

    var parsed = self.parseOptions(unknown);

    // Output help if necessary
    outputHelpIfNecessary(self, parsed.unknown);

    // If there are still any unknown options, then we simply
    // die, unless someone asked for help, in which case we give it
    // to them, and then we die.
    if (parsed.unknown.length > 0) {
      self.unknownOption(parsed.unknown[0]);
    }

    // Leftover arguments need to be pushed back. Fixes issue #56
    if (parsed.args.length) args = parsed.args.concat(args);

    self._args.forEach(function(arg, i) {
      if (arg.required && null == args[i]) {
        self.missingArgument(arg.name);
      } else if (arg.variadic) {
        if (i !== self._args.length - 1) {
          self.variadicArgNotLast(arg.name);
        }

        args[i] = args.splice(i);
      }
    });

    // Always append ourselves to the end of the arguments,
    // to make sure we match the number of arguments the user
    // expects
    if (self._args.length) {
      args[self._args.length] = self;
    } else {
      args.push(self);
    }

    fn.apply(self, args);
  };
  var parent = this.parent || this;
  var name = parent === this ? '*' : this._name;
  parent.on('command:' + name, listener);
  if (this._alias) parent.on('command:' + this._alias, listener);
  return this;
};

/**
 * Define option with `flags`, `description` and optional
 * coercion `fn`.
 *
 * The `flags` string should contain both the short and long flags,
 * separated by comma, a pipe or space. The following are all valid
 * all will output this way when `--help` is used.
 *
 *    "-p, --pepper"
 *    "-p|--pepper"
 *    "-p --pepper"
 *
 * Examples:
 *
 *     // simple boolean defaulting to false
 *     program.option('-p, --pepper', 'add pepper');
 *
 *     --pepper
 *     program.pepper
 *     // => Boolean
 *
 *     // simple boolean defaulting to true
 *     program.option('-C, --no-cheese', 'remove cheese');
 *
 *     program.cheese
 *     // => true
 *
 *     --no-cheese
 *     program.cheese
 *     // => false
 *
 *     // required argument
 *     program.option('-C, --chdir <path>', 'change the working directory');
 *
 *     --chdir /tmp
 *     program.chdir
 *     // => "/tmp"
 *
 *     // optional argument
 *     program.option('-c, --cheese [type]', 'add cheese [marble]');
 *
 * @param {String} flags
 * @param {String} description
 * @param {Function|*} [fn] or default
 * @param {*} [defaultValue]
 * @return {Command} for chaining
 * @api public
 */

Command.prototype.option = function(flags, description, fn, defaultValue) {
  var self = this
    , option = new Option(flags, description)
    , oname = option.name()
    , name = camelcase(oname);

  // default as 3rd arg
  if (typeof fn != 'function') {
    if (fn instanceof RegExp) {
      var regex = fn;
      fn = function(val, def) {
        var m = regex.exec(val);
        return m ? m[0] : def;
      }
    }
    else {
      defaultValue = fn;
      fn = null;
    }
  }

  // preassign default value only for --no-*, [optional], or <required>
  if (false == option.bool || option.optional || option.required) {
    // when --no-* we make sure default is true
    if (false == option.bool) defaultValue = true;
    // preassign only if we have a default
    if (undefined !== defaultValue) self[name] = defaultValue;
  }

  // register the option
  this.options.push(option);

  // when it's passed assign the value
  // and conditionally invoke the callback
  this.on('option:' + oname, function(val) {
    // coercion
    if (null !== val && fn) val = fn(val, undefined === self[name]
      ? defaultValue
      : self[name]);

    // unassigned or bool
    if ('boolean' == typeof self[name] || 'undefined' == typeof self[name]) {
      // if no value, bool true, and we have a default, then use it!
      if (null == val) {
        self[name] = option.bool
          ? defaultValue || true
          : false;
      } else {
        self[name] = val;
      }
    } else if (null !== val) {
      // reassign
      self[name] = val;
    }
  });

  return this;
};

/**
 * Allow unknown options on the command line.
 *
 * @param {Boolean} arg if `true` or omitted, no error will be thrown
 * for unknown options.
 * @api public
 */
Command.prototype.allowUnknownOption = function(arg) {
    this._allowUnknownOption = arguments.length === 0 || arg;
    return this;
};

/**
 * Parse `argv`, settings options and invoking commands when defined.
 *
 * @param {Array} argv
 * @return {Command} for chaining
 * @api public
 */

Command.prototype.parse = function(argv) {
  // implicit help
  if (this.executables) this.addImplicitHelpCommand();

  // store raw args
  this.rawArgs = argv;

  // guess name
  this._name = this._name || basename(argv[1], '.js');

  // github-style sub-commands with no sub-command
  if (this.executables && argv.length < 3 && !this.defaultExecutable) {
    // this user needs help
    argv.push('--help');
  }

  // process argv
  var parsed = this.parseOptions(this.normalize(argv.slice(2)));
  var args = this.args = parsed.args;

  var result = this.parseArgs(this.args, parsed.unknown);

  // executable sub-commands
  var name = result.args[0];

  var aliasCommand = null;
  // check alias of sub commands
  if (name) {
    aliasCommand = this.commands.filter(function(command) {
      return command.alias() === name;
    })[0];
  }

  if (this._execs[name] && typeof this._execs[name] != "function") {
    return this.executeSubCommand(argv, args, parsed.unknown);
  } else if (aliasCommand) {
    // is alias of a subCommand
    args[0] = aliasCommand._name;
    return this.executeSubCommand(argv, args, parsed.unknown);
  } else if (this.defaultExecutable) {
    // use the default subcommand
    args.unshift(this.defaultExecutable);
    return this.executeSubCommand(argv, args, parsed.unknown);
  }

  return result;
};

/**
 * Execute a sub-command executable.
 *
 * @param {Array} argv
 * @param {Array} args
 * @param {Array} unknown
 * @api private
 */

Command.prototype.executeSubCommand = function(argv, args, unknown) {
  args = args.concat(unknown);

  if (!args.length) this.help();
  if ('help' == args[0] && 1 == args.length) this.help();

  // <cmd> --help
  if ('help' == args[0]) {
    args[0] = args[1];
    args[1] = '--help';
  }

  // executable
  var f = argv[1];
  // name of the subcommand, link `pm-install`
  var bin = basename(f, '.js') + '-' + args[0];


  // In case of globally installed, get the base dir where executable
  //  subcommand file should be located at
  var baseDir
    , link = fs.lstatSync(f).isSymbolicLink() ? fs.readlinkSync(f) : f;

  // when symbolink is relative path
  if (link !== f && link.charAt(0) !== '/') {
    link = path.join(dirname(f), link)
  }
  baseDir = dirname(link);

  // prefer local `./<bin>` to bin in the $PATH
  var localBin = path.join(baseDir, bin);

  // whether bin file is a js script with explicit `.js` extension
  var isExplicitJS = false;
  if (exists(localBin + '.js')) {
    bin = localBin + '.js';
    isExplicitJS = true;
  } else if (exists(localBin)) {
    bin = localBin;
  }

  args = args.slice(1);

  var proc;
  if (process.platform !== 'win32') {
    if (isExplicitJS) {
      args.unshift(bin);
      // add executable arguments to spawn
      args = (process.execArgv || []).concat(args);

      proc = spawn('node', args, { stdio: 'inherit', customFds: [0, 1, 2] });
    } else {
      proc = spawn(bin, args, { stdio: 'inherit', customFds: [0, 1, 2] });
    }
  } else {
    args.unshift(bin);
    proc = spawn(process.execPath, args, { stdio: 'inherit'});
  }

  var signals = ['SIGUSR1', 'SIGUSR2', 'SIGTERM', 'SIGINT', 'SIGHUP'];
  signals.forEach(function(signal) {
    process.on(signal, function(){
      if ((proc.killed === false) && (proc.exitCode === null)){
        proc.kill(signal);
      }
    });
  });
  proc.on('close', process.exit.bind(process));
  proc.on('error', function(err) {
    if (err.code == "ENOENT") {
      console.error('\n  %s(1) does not exist, try --help\n', bin);
    } else if (err.code == "EACCES") {
      console.error('\n  %s(1) not executable. try chmod or run with root\n', bin);
    }
    process.exit(1);
  });

  // Store the reference to the child process
  this.runningCommand = proc;
};

/**
 * Normalize `args`, splitting joined short flags. For example
 * the arg "-abc" is equivalent to "-a -b -c".
 * This also normalizes equal sign and splits "--abc=def" into "--abc def".
 *
 * @param {Array} args
 * @return {Array}
 * @api private
 */

Command.prototype.normalize = function(args) {
  var ret = []
    , arg
    , lastOpt
    , index;

  for (var i = 0, len = args.length; i < len; ++i) {
    arg = args[i];
    if (i > 0) {
      lastOpt = this.optionFor(args[i-1]);
    }

    if (arg === '--') {
      // Honor option terminator
      ret = ret.concat(args.slice(i));
      break;
    } else if (lastOpt && lastOpt.required) {
      ret.push(arg);
    } else if (arg.length > 1 && '-' == arg[0] && '-' != arg[1]) {
      arg.slice(1).split('').forEach(function(c) {
        ret.push('-' + c);
      });
    } else if (/^--/.test(arg) && ~(index = arg.indexOf('='))) {
      ret.push(arg.slice(0, index), arg.slice(index + 1));
    } else {
      ret.push(arg);
    }
  }

  return ret;
};

/**
 * Parse command `args`.
 *
 * When listener(s) are available those
 * callbacks are invoked, otherwise the "*"
 * event is emitted and those actions are invoked.
 *
 * @param {Array} args
 * @return {Command} for chaining
 * @api private
 */

Command.prototype.parseArgs = function(args, unknown) {
  var name;

  if (args.length) {
    name = args[0];
    if (this.listeners('command:' + name).length) {
      this.emit('command:' + args.shift(), args, unknown);
    } else {
      this.emit('command:*', args);
    }
  } else {
    outputHelpIfNecessary(this, unknown);

    // If there were no args and we have unknown options,
    // then they are extraneous and we need to error.
    if (unknown.length > 0) {
      this.unknownOption(unknown[0]);
    }
  }

  return this;
};

/**
 * Return an option matching `arg` if any.
 *
 * @param {String} arg
 * @return {Option}
 * @api private
 */

Command.prototype.optionFor = function(arg) {
  for (var i = 0, len = this.options.length; i < len; ++i) {
    if (this.options[i].is(arg)) {
      return this.options[i];
    }
  }
};

/**
 * Parse options from `argv` returning `argv`
 * void of these options.
 *
 * @param {Array} argv
 * @return {Array}
 * @api public
 */

Command.prototype.parseOptions = function(argv) {
  var args = []
    , len = argv.length
    , literal
    , option
    , arg;

  var unknownOptions = [];

  // parse options
  for (var i = 0; i < len; ++i) {
    arg = argv[i];

    // literal args after --
    if (literal) {
      args.push(arg);
      continue;
    }

    if ('--' == arg) {
      literal = true;
      continue;
    }

    // find matching Option
    option = this.optionFor(arg);

    // option is defined
    if (option) {
      // requires arg
      if (option.required) {
        arg = argv[++i];
        if (null == arg) return this.optionMissingArgument(option);
        this.emit('option:' + option.name(), arg);
      // optional arg
      } else if (option.optional) {
        arg = argv[i+1];
        if (null == arg || ('-' == arg[0] && '-' != arg)) {
          arg = null;
        } else {
          ++i;
        }
        this.emit('option:' + option.name(), arg);
      // bool
      } else {
        this.emit('option:' + option.name());
      }
      continue;
    }

    // looks like an option
    if (arg.length > 1 && '-' == arg[0]) {
      unknownOptions.push(arg);

      // If the next argument looks like it might be
      // an argument for this option, we pass it on.
      // If it isn't, then it'll simply be ignored
      if (argv[i+1] && '-' != argv[i+1][0]) {
        unknownOptions.push(argv[++i]);
      }
      continue;
    }

    // arg
    args.push(arg);
  }

  return { args: args, unknown: unknownOptions };
};

/**
 * Return an object containing options as key-value pairs
 *
 * @return {Object}
 * @api public
 */
Command.prototype.opts = function() {
  var result = {}
    , len = this.options.length;

  for (var i = 0 ; i < len; i++) {
    var key = camelcase(this.options[i].name());
    result[key] = key === 'version' ? this._version : this[key];
  }
  return result;
};

/**
 * Argument `name` is missing.
 *
 * @param {String} name
 * @api private
 */

Command.prototype.missingArgument = function(name) {
  console.error();
  console.error("  error: missing required argument `%s'", name);
  console.error();
  process.exit(1);
};

/**
 * `Option` is missing an argument, but received `flag` or nothing.
 *
 * @param {String} option
 * @param {String} flag
 * @api private
 */

Command.prototype.optionMissingArgument = function(option, flag) {
  console.error();
  if (flag) {
    console.error("  error: option `%s' argument missing, got `%s'", option.flags, flag);
  } else {
    console.error("  error: option `%s' argument missing", option.flags);
  }
  console.error();
  process.exit(1);
};

/**
 * Unknown option `flag`.
 *
 * @param {String} flag
 * @api private
 */

Command.prototype.unknownOption = function(flag) {
  if (this._allowUnknownOption) return;
  console.error();
  console.error("  error: unknown option `%s'", flag);
  console.error();
  process.exit(1);
};

/**
 * Variadic argument with `name` is not the last argument as required.
 *
 * @param {String} name
 * @api private
 */

Command.prototype.variadicArgNotLast = function(name) {
  console.error();
  console.error("  error: variadic arguments must be last `%s'", name);
  console.error();
  process.exit(1);
};

/**
 * Set the program version to `str`.
 *
 * This method auto-registers the "-V, --version" flag
 * which will print the version number when passed.
 *
 * @param {String} str
 * @param {String} [flags]
 * @return {Command} for chaining
 * @api public
 */

Command.prototype.version = function(str, flags) {
  if (0 == arguments.length) return this._version;
  this._version = str;
  flags = flags || '-V, --version';
  this.option(flags, 'output the version number');
  this.on('option:version', function() {
    process.stdout.write(str + '\n');
    process.exit(0);
  });
  return this;
};

/**
 * Set the description to `str`.
 *
 * @param {String} str
 * @return {String|Command}
 * @api public
 */

Command.prototype.description = function(str) {
  if (0 === arguments.length) return this._description;
  this._description = str;
  return this;
};

/**
 * Set an alias for the command
 *
 * @param {String} alias
 * @return {String|Command}
 * @api public
 */

Command.prototype.alias = function(alias) {
  var command = this;
  if(this.commands.length !== 0) {
    command = this.commands[this.commands.length - 1]
  }

  if (arguments.length === 0) return command._alias;

  command._alias = alias;
  return this;
};

/**
 * Set / get the command usage `str`.
 *
 * @param {String} str
 * @return {String|Command}
 * @api public
 */

Command.prototype.usage = function(str) {
  var args = this._args.map(function(arg) {
    return humanReadableArgName(arg);
  });

  var usage = '[options]'
    + (this.commands.length ? ' [command]' : '')
    + (this._args.length ? ' ' + args.join(' ') : '');

  if (0 == arguments.length) return this._usage || usage;
  this._usage = str;

  return this;
};

/**
 * Get or set the name of the command
 *
 * @param {String} str
 * @return {String|Command}
 * @api public
 */

Command.prototype.name = function(str) {
  if (0 === arguments.length) return this._name;
  this._name = str;
  return this;
};

/**
 * Return the largest option length.
 *
 * @return {Number}
 * @api private
 */

Command.prototype.largestOptionLength = function() {
  return this.options.reduce(function(max, option) {
    return Math.max(max, option.flags.length);
  }, 0);
};

/**
 * Return help for options.
 *
 * @return {String}
 * @api private
 */

Command.prototype.optionHelp = function() {
  var width = this.largestOptionLength();

  // Append the help information
  return this.options.map(function(option) {
      return pad(option.flags, width) + '  ' + option.description;
    }).concat([pad('-h, --help', width) + '  ' + 'output usage information'])
    .join('\n');
};

/**
 * Return command help documentation.
 *
 * @return {String}
 * @api private
 */

Command.prototype.commandHelp = function() {
  if (!this.commands.length) return '';

  var commands = this.commands.filter(function(cmd) {
    return !cmd._noHelp;
  }).map(function(cmd) {
    var args = cmd._args.map(function(arg) {
      return humanReadableArgName(arg);
    }).join(' ');

    return [
      cmd._name
        + (cmd._alias ? '|' + cmd._alias : '')
        + (cmd.options.length ? ' [options]' : '')
        + ' ' + args
      , cmd._description
    ];
  });

  var width = commands.reduce(function(max, command) {
    return Math.max(max, command[0].length);
  }, 0);

  return [
    ''
    , '  Commands:'
    , ''
    , commands.map(function(cmd) {
      var desc = cmd[1] ? '  ' + cmd[1] : '';
      return pad(cmd[0], width) + desc;
    }).join('\n').replace(/^/gm, '    ')
    , ''
  ].join('\n');
};

/**
 * Return program help documentation.
 *
 * @return {String}
 * @api private
 */

Command.prototype.helpInformation = function() {
  var desc = [];
  if (this._description) {
    desc = [
      '  ' + this._description
      , ''
    ];
  }

  var cmdName = this._name;
  if (this._alias) {
    cmdName = cmdName + '|' + this._alias;
  }
  var usage = [
    ''
    ,'  Usage: ' + cmdName + ' ' + this.usage()
    , ''
  ];

  var cmds = [];
  var commandHelp = this.commandHelp();
  if (commandHelp) cmds = [commandHelp];

  var options = [
    ''
    , '  Options:'
    , ''
    , '' + this.optionHelp().replace(/^/gm, '    ')
    , ''
  ];

  return usage
    .concat(desc)
    .concat(options)
    .concat(cmds)
    .join('\n');
};

/**
 * Output help information for this command
 *
 * @api public
 */

Command.prototype.outputHelp = function(cb) {
  if (!cb) {
    cb = function(passthru) {
      return passthru;
    }
  }
  process.stdout.write(cb(this.helpInformation()));
  this.emit('--help');
};

/**
 * Output help information and exit.
 *
 * @api public
 */

Command.prototype.help = function(cb) {
  this.outputHelp(cb);
  process.exit();
};

/**
 * Camel-case the given `flag`
 *
 * @param {String} flag
 * @return {String}
 * @api private
 */

function camelcase(flag) {
  return flag.split('-').reduce(function(str, word) {
    return str + word[0].toUpperCase() + word.slice(1);
  });
}

/**
 * Pad `str` to `width`.
 *
 * @param {String} str
 * @param {Number} width
 * @return {String}
 * @api private
 */

function pad(str, width) {
  var len = Math.max(0, width - str.length);
  return str + Array(len + 1).join(' ');
}

/**
 * Output help information if necessary
 *
 * @param {Command} command to output help for
 * @param {Array} array of options to search for -h or --help
 * @api private
 */

function outputHelpIfNecessary(cmd, options) {
  options = options || [];
  for (var i = 0; i < options.length; i++) {
    if (options[i] == '--help' || options[i] == '-h') {
      cmd.outputHelp();
      process.exit(0);
    }
  }
}

/**
 * Takes an argument an returns its human readable equivalent for help usage.
 *
 * @param {Object} arg
 * @return {String}
 * @api private
 */

function humanReadableArgName(arg) {
  var nameOutput = arg.name + (arg.variadic === true ? '...' : '');

  return arg.required
    ? '<' + nameOutput + '>'
    : '[' + nameOutput + ']'
}

// for versions before node v0.8 when there weren't `fs.existsSync`
function exists(file) {
  try {
    if (fs.statSync(file).isFile()) {
      return true;
    }
  } catch (e) {
    return false;
  }
}


}).call(this,require('_process'))
},{"_process":255,"child_process":39,"events":206,"fs":39,"path":251}],64:[function(require,module,exports){
module.exports = function (xs, fn) {
    var res = [];
    for (var i = 0; i < xs.length; i++) {
        var x = fn(xs[i], i);
        if (isArray(x)) res.push.apply(res, x);
        else res.push(x);
    }
    return res;
};

var isArray = Array.isArray || function (xs) {
    return Object.prototype.toString.call(xs) === '[object Array]';
};

},{}],65:[function(require,module,exports){
module.exports={
  "O_RDONLY": 0,
  "O_WRONLY": 1,
  "O_RDWR": 2,
  "S_IFMT": 61440,
  "S_IFREG": 32768,
  "S_IFDIR": 16384,
  "S_IFCHR": 8192,
  "S_IFBLK": 24576,
  "S_IFIFO": 4096,
  "S_IFLNK": 40960,
  "S_IFSOCK": 49152,
  "O_CREAT": 512,
  "O_EXCL": 2048,
  "O_NOCTTY": 131072,
  "O_TRUNC": 1024,
  "O_APPEND": 8,
  "O_DIRECTORY": 1048576,
  "O_NOFOLLOW": 256,
  "O_SYNC": 128,
  "O_SYMLINK": 2097152,
  "O_NONBLOCK": 4,
  "S_IRWXU": 448,
  "S_IRUSR": 256,
  "S_IWUSR": 128,
  "S_IXUSR": 64,
  "S_IRWXG": 56,
  "S_IRGRP": 32,
  "S_IWGRP": 16,
  "S_IXGRP": 8,
  "S_IRWXO": 7,
  "S_IROTH": 4,
  "S_IWOTH": 2,
  "S_IXOTH": 1,
  "E2BIG": 7,
  "EACCES": 13,
  "EADDRINUSE": 48,
  "EADDRNOTAVAIL": 49,
  "EAFNOSUPPORT": 47,
  "EAGAIN": 35,
  "EALREADY": 37,
  "EBADF": 9,
  "EBADMSG": 94,
  "EBUSY": 16,
  "ECANCELED": 89,
  "ECHILD": 10,
  "ECONNABORTED": 53,
  "ECONNREFUSED": 61,
  "ECONNRESET": 54,
  "EDEADLK": 11,
  "EDESTADDRREQ": 39,
  "EDOM": 33,
  "EDQUOT": 69,
  "EEXIST": 17,
  "EFAULT": 14,
  "EFBIG": 27,
  "EHOSTUNREACH": 65,
  "EIDRM": 90,
  "EILSEQ": 92,
  "EINPROGRESS": 36,
  "EINTR": 4,
  "EINVAL": 22,
  "EIO": 5,
  "EISCONN": 56,
  "EISDIR": 21,
  "ELOOP": 62,
  "EMFILE": 24,
  "EMLINK": 31,
  "EMSGSIZE": 40,
  "EMULTIHOP": 95,
  "ENAMETOOLONG": 63,
  "ENETDOWN": 50,
  "ENETRESET": 52,
  "ENETUNREACH": 51,
  "ENFILE": 23,
  "ENOBUFS": 55,
  "ENODATA": 96,
  "ENODEV": 19,
  "ENOENT": 2,
  "ENOEXEC": 8,
  "ENOLCK": 77,
  "ENOLINK": 97,
  "ENOMEM": 12,
  "ENOMSG": 91,
  "ENOPROTOOPT": 42,
  "ENOSPC": 28,
  "ENOSR": 98,
  "ENOSTR": 99,
  "ENOSYS": 78,
  "ENOTCONN": 57,
  "ENOTDIR": 20,
  "ENOTEMPTY": 66,
  "ENOTSOCK": 38,
  "ENOTSUP": 45,
  "ENOTTY": 25,
  "ENXIO": 6,
  "EOPNOTSUPP": 102,
  "EOVERFLOW": 84,
  "EPERM": 1,
  "EPIPE": 32,
  "EPROTO": 100,
  "EPROTONOSUPPORT": 43,
  "EPROTOTYPE": 41,
  "ERANGE": 34,
  "EROFS": 30,
  "ESPIPE": 29,
  "ESRCH": 3,
  "ESTALE": 70,
  "ETIME": 101,
  "ETIMEDOUT": 60,
  "ETXTBSY": 26,
  "EWOULDBLOCK": 35,
  "EXDEV": 18,
  "SIGHUP": 1,
  "SIGINT": 2,
  "SIGQUIT": 3,
  "SIGILL": 4,
  "SIGTRAP": 5,
  "SIGABRT": 6,
  "SIGIOT": 6,
  "SIGBUS": 10,
  "SIGFPE": 8,
  "SIGKILL": 9,
  "SIGUSR1": 30,
  "SIGSEGV": 11,
  "SIGUSR2": 31,
  "SIGPIPE": 13,
  "SIGALRM": 14,
  "SIGTERM": 15,
  "SIGCHLD": 20,
  "SIGCONT": 19,
  "SIGSTOP": 17,
  "SIGTSTP": 18,
  "SIGTTIN": 21,
  "SIGTTOU": 22,
  "SIGURG": 16,
  "SIGXCPU": 24,
  "SIGXFSZ": 25,
  "SIGVTALRM": 26,
  "SIGPROF": 27,
  "SIGWINCH": 28,
  "SIGIO": 23,
  "SIGSYS": 12,
  "SSL_OP_ALL": 2147486719,
  "SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION": 262144,
  "SSL_OP_CIPHER_SERVER_PREFERENCE": 4194304,
  "SSL_OP_CISCO_ANYCONNECT": 32768,
  "SSL_OP_COOKIE_EXCHANGE": 8192,
  "SSL_OP_CRYPTOPRO_TLSEXT_BUG": 2147483648,
  "SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS": 2048,
  "SSL_OP_EPHEMERAL_RSA": 0,
  "SSL_OP_LEGACY_SERVER_CONNECT": 4,
  "SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER": 32,
  "SSL_OP_MICROSOFT_SESS_ID_BUG": 1,
  "SSL_OP_MSIE_SSLV2_RSA_PADDING": 0,
  "SSL_OP_NETSCAPE_CA_DN_BUG": 536870912,
  "SSL_OP_NETSCAPE_CHALLENGE_BUG": 2,
  "SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG": 1073741824,
  "SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG": 8,
  "SSL_OP_NO_COMPRESSION": 131072,
  "SSL_OP_NO_QUERY_MTU": 4096,
  "SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION": 65536,
  "SSL_OP_NO_SSLv2": 16777216,
  "SSL_OP_NO_SSLv3": 33554432,
  "SSL_OP_NO_TICKET": 16384,
  "SSL_OP_NO_TLSv1": 67108864,
  "SSL_OP_NO_TLSv1_1": 268435456,
  "SSL_OP_NO_TLSv1_2": 134217728,
  "SSL_OP_PKCS1_CHECK_1": 0,
  "SSL_OP_PKCS1_CHECK_2": 0,
  "SSL_OP_SINGLE_DH_USE": 1048576,
  "SSL_OP_SINGLE_ECDH_USE": 524288,
  "SSL_OP_SSLEAY_080_CLIENT_DH_BUG": 128,
  "SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG": 0,
  "SSL_OP_TLS_BLOCK_PADDING_BUG": 512,
  "SSL_OP_TLS_D5_BUG": 256,
  "SSL_OP_TLS_ROLLBACK_BUG": 8388608,
  "ENGINE_METHOD_DSA": 2,
  "ENGINE_METHOD_DH": 4,
  "ENGINE_METHOD_RAND": 8,
  "ENGINE_METHOD_ECDH": 16,
  "ENGINE_METHOD_ECDSA": 32,
  "ENGINE_METHOD_CIPHERS": 64,
  "ENGINE_METHOD_DIGESTS": 128,
  "ENGINE_METHOD_STORE": 256,
  "ENGINE_METHOD_PKEY_METHS": 512,
  "ENGINE_METHOD_PKEY_ASN1_METHS": 1024,
  "ENGINE_METHOD_ALL": 65535,
  "ENGINE_METHOD_NONE": 0,
  "DH_CHECK_P_NOT_SAFE_PRIME": 2,
  "DH_CHECK_P_NOT_PRIME": 1,
  "DH_UNABLE_TO_CHECK_GENERATOR": 4,
  "DH_NOT_SUITABLE_GENERATOR": 8,
  "NPN_ENABLED": 1,
  "RSA_PKCS1_PADDING": 1,
  "RSA_SSLV23_PADDING": 2,
  "RSA_NO_PADDING": 3,
  "RSA_PKCS1_OAEP_PADDING": 4,
  "RSA_X931_PADDING": 5,
  "RSA_PKCS1_PSS_PADDING": 6,
  "POINT_CONVERSION_COMPRESSED": 2,
  "POINT_CONVERSION_UNCOMPRESSED": 4,
  "POINT_CONVERSION_HYBRID": 6,
  "F_OK": 0,
  "R_OK": 4,
  "W_OK": 2,
  "X_OK": 1,
  "UV_UDP_REUSEADDR": 4
}

},{}],66:[function(require,module,exports){
require('../../modules/es6.string.iterator');
require('../../modules/es6.array.from');
module.exports = require('../../modules/_core').Array.from;

},{"../../modules/_core":81,"../../modules/es6.array.from":140,"../../modules/es6.string.iterator":147}],67:[function(require,module,exports){
require('../modules/web.dom.iterable');
require('../modules/es6.string.iterator');
module.exports = require('../modules/core.get-iterator');

},{"../modules/core.get-iterator":138,"../modules/es6.string.iterator":147,"../modules/web.dom.iterable":151}],68:[function(require,module,exports){
require('../modules/web.dom.iterable');
require('../modules/es6.string.iterator');
module.exports = require('../modules/core.is-iterable');

},{"../modules/core.is-iterable":139,"../modules/es6.string.iterator":147,"../modules/web.dom.iterable":151}],69:[function(require,module,exports){
require('../../modules/es6.object.assign');
module.exports = require('../../modules/_core').Object.assign;

},{"../../modules/_core":81,"../../modules/es6.object.assign":142}],70:[function(require,module,exports){
require('../../modules/es6.object.create');
var $Object = require('../../modules/_core').Object;
module.exports = function create(P, D) {
  return $Object.create(P, D);
};

},{"../../modules/_core":81,"../../modules/es6.object.create":143}],71:[function(require,module,exports){
require('../../modules/es6.object.define-property');
var $Object = require('../../modules/_core').Object;
module.exports = function defineProperty(it, key, desc) {
  return $Object.defineProperty(it, key, desc);
};

},{"../../modules/_core":81,"../../modules/es6.object.define-property":144}],72:[function(require,module,exports){
require('../../modules/es6.object.set-prototype-of');
module.exports = require('../../modules/_core').Object.setPrototypeOf;

},{"../../modules/_core":81,"../../modules/es6.object.set-prototype-of":145}],73:[function(require,module,exports){
require('../../modules/es6.symbol');
require('../../modules/es6.object.to-string');
require('../../modules/es7.symbol.async-iterator');
require('../../modules/es7.symbol.observable');
module.exports = require('../../modules/_core').Symbol;

},{"../../modules/_core":81,"../../modules/es6.object.to-string":146,"../../modules/es6.symbol":148,"../../modules/es7.symbol.async-iterator":149,"../../modules/es7.symbol.observable":150}],74:[function(require,module,exports){
require('../../modules/es6.string.iterator');
require('../../modules/web.dom.iterable');
module.exports = require('../../modules/_wks-ext').f('iterator');

},{"../../modules/_wks-ext":135,"../../modules/es6.string.iterator":147,"../../modules/web.dom.iterable":151}],75:[function(require,module,exports){
module.exports = function (it) {
  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
  return it;
};

},{}],76:[function(require,module,exports){
module.exports = function () { /* empty */ };

},{}],77:[function(require,module,exports){
var isObject = require('./_is-object');
module.exports = function (it) {
  if (!isObject(it)) throw TypeError(it + ' is not an object!');
  return it;
};

},{"./_is-object":99}],78:[function(require,module,exports){
// false -> Array#indexOf
// true  -> Array#includes
var toIObject = require('./_to-iobject');
var toLength = require('./_to-length');
var toAbsoluteIndex = require('./_to-absolute-index');
module.exports = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIObject($this);
    var length = toLength(O.length);
    var index = toAbsoluteIndex(fromIndex, length);
    var value;
    // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      // eslint-disable-next-line no-self-compare
      if (value != value) return true;
    // Array#indexOf ignores holes, Array#includes - not
    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
      if (O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};

},{"./_to-absolute-index":127,"./_to-iobject":129,"./_to-length":130}],79:[function(require,module,exports){
// getting tag from 19.1.3.6 Object.prototype.toString()
var cof = require('./_cof');
var TAG = require('./_wks')('toStringTag');
// ES3 wrong here
var ARG = cof(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet = function (it, key) {
  try {
    return it[key];
  } catch (e) { /* empty */ }
};

module.exports = function (it) {
  var O, T, B;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
    // builtinTag case
    : ARG ? cof(O)
    // ES3 arguments fallback
    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
};

},{"./_cof":80,"./_wks":136}],80:[function(require,module,exports){
var toString = {}.toString;

module.exports = function (it) {
  return toString.call(it).slice(8, -1);
};

},{}],81:[function(require,module,exports){
var core = module.exports = { version: '2.5.1' };
if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef

},{}],82:[function(require,module,exports){
'use strict';
var $defineProperty = require('./_object-dp');
var createDesc = require('./_property-desc');

module.exports = function (object, index, value) {
  if (index in object) $defineProperty.f(object, index, createDesc(0, value));
  else object[index] = value;
};

},{"./_object-dp":110,"./_property-desc":120}],83:[function(require,module,exports){
// optional / simple context binding
var aFunction = require('./_a-function');
module.exports = function (fn, that, length) {
  aFunction(fn);
  if (that === undefined) return fn;
  switch (length) {
    case 1: return function (a) {
      return fn.call(that, a);
    };
    case 2: return function (a, b) {
      return fn.call(that, a, b);
    };
    case 3: return function (a, b, c) {
      return fn.call(that, a, b, c);
    };
  }
  return function (/* ...args */) {
    return fn.apply(that, arguments);
  };
};

},{"./_a-function":75}],84:[function(require,module,exports){
// 7.2.1 RequireObjectCoercible(argument)
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on  " + it);
  return it;
};

},{}],85:[function(require,module,exports){
// Thank's IE8 for his funny defineProperty
module.exports = !require('./_fails')(function () {
  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
});

},{"./_fails":90}],86:[function(require,module,exports){
var isObject = require('./_is-object');
var document = require('./_global').document;
// typeof document.createElement is 'object' in old IE
var is = isObject(document) && isObject(document.createElement);
module.exports = function (it) {
  return is ? document.createElement(it) : {};
};

},{"./_global":91,"./_is-object":99}],87:[function(require,module,exports){
// IE 8- don't enum bug keys
module.exports = (
  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
).split(',');

},{}],88:[function(require,module,exports){
// all enumerable object keys, includes symbols
var getKeys = require('./_object-keys');
var gOPS = require('./_object-gops');
var pIE = require('./_object-pie');
module.exports = function (it) {
  var result = getKeys(it);
  var getSymbols = gOPS.f;
  if (getSymbols) {
    var symbols = getSymbols(it);
    var isEnum = pIE.f;
    var i = 0;
    var key;
    while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);
  } return result;
};

},{"./_object-gops":115,"./_object-keys":118,"./_object-pie":119}],89:[function(require,module,exports){
var global = require('./_global');
var core = require('./_core');
var ctx = require('./_ctx');
var hide = require('./_hide');
var PROTOTYPE = 'prototype';

var $export = function (type, name, source) {
  var IS_FORCED = type & $export.F;
  var IS_GLOBAL = type & $export.G;
  var IS_STATIC = type & $export.S;
  var IS_PROTO = type & $export.P;
  var IS_BIND = type & $export.B;
  var IS_WRAP = type & $export.W;
  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
  var expProto = exports[PROTOTYPE];
  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE];
  var key, own, out;
  if (IS_GLOBAL) source = name;
  for (key in source) {
    // contains in native
    own = !IS_FORCED && target && target[key] !== undefined;
    if (own && key in exports) continue;
    // export native or passed
    out = own ? target[key] : source[key];
    // prevent global pollution for namespaces
    exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
    // bind timers to global for call from export context
    : IS_BIND && own ? ctx(out, global)
    // wrap global constructors for prevent change them in library
    : IS_WRAP && target[key] == out ? (function (C) {
      var F = function (a, b, c) {
        if (this instanceof C) {
          switch (arguments.length) {
            case 0: return new C();
            case 1: return new C(a);
            case 2: return new C(a, b);
          } return new C(a, b, c);
        } return C.apply(this, arguments);
      };
      F[PROTOTYPE] = C[PROTOTYPE];
      return F;
    // make static versions for prototype methods
    })(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
    // export proto methods to core.%CONSTRUCTOR%.methods.%NAME%
    if (IS_PROTO) {
      (exports.virtual || (exports.virtual = {}))[key] = out;
      // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME%
      if (type & $export.R && expProto && !expProto[key]) hide(expProto, key, out);
    }
  }
};
// type bitmap
$export.F = 1;   // forced
$export.G = 2;   // global
$export.S = 4;   // static
$export.P = 8;   // proto
$export.B = 16;  // bind
$export.W = 32;  // wrap
$export.U = 64;  // safe
$export.R = 128; // real proto method for `library`
module.exports = $export;

},{"./_core":81,"./_ctx":83,"./_global":91,"./_hide":93}],90:[function(require,module,exports){
module.exports = function (exec) {
  try {
    return !!exec();
  } catch (e) {
    return true;
  }
};

},{}],91:[function(require,module,exports){
// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
var global = module.exports = typeof window != 'undefined' && window.Math == Math
  ? window : typeof self != 'undefined' && self.Math == Math ? self
  // eslint-disable-next-line no-new-func
  : Function('return this')();
if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef

},{}],92:[function(require,module,exports){
var hasOwnProperty = {}.hasOwnProperty;
module.exports = function (it, key) {
  return hasOwnProperty.call(it, key);
};

},{}],93:[function(require,module,exports){
var dP = require('./_object-dp');
var createDesc = require('./_property-desc');
module.exports = require('./_descriptors') ? function (object, key, value) {
  return dP.f(object, key, createDesc(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};

},{"./_descriptors":85,"./_object-dp":110,"./_property-desc":120}],94:[function(require,module,exports){
var document = require('./_global').document;
module.exports = document && document.documentElement;

},{"./_global":91}],95:[function(require,module,exports){
module.exports = !require('./_descriptors') && !require('./_fails')(function () {
  return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;
});

},{"./_descriptors":85,"./_dom-create":86,"./_fails":90}],96:[function(require,module,exports){
// fallback for non-array-like ES3 and non-enumerable old V8 strings
var cof = require('./_cof');
// eslint-disable-next-line no-prototype-builtins
module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
  return cof(it) == 'String' ? it.split('') : Object(it);
};

},{"./_cof":80}],97:[function(require,module,exports){
// check on default Array iterator
var Iterators = require('./_iterators');
var ITERATOR = require('./_wks')('iterator');
var ArrayProto = Array.prototype;

module.exports = function (it) {
  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
};

},{"./_iterators":105,"./_wks":136}],98:[function(require,module,exports){
// 7.2.2 IsArray(argument)
var cof = require('./_cof');
module.exports = Array.isArray || function isArray(arg) {
  return cof(arg) == 'Array';
};

},{"./_cof":80}],99:[function(require,module,exports){
module.exports = function (it) {
  return typeof it === 'object' ? it !== null : typeof it === 'function';
};

},{}],100:[function(require,module,exports){
// call something on iterator step with safe closing on error
var anObject = require('./_an-object');
module.exports = function (iterator, fn, value, entries) {
  try {
    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
  // 7.4.6 IteratorClose(iterator, completion)
  } catch (e) {
    var ret = iterator['return'];
    if (ret !== undefined) anObject(ret.call(iterator));
    throw e;
  }
};

},{"./_an-object":77}],101:[function(require,module,exports){
'use strict';
var create = require('./_object-create');
var descriptor = require('./_property-desc');
var setToStringTag = require('./_set-to-string-tag');
var IteratorPrototype = {};

// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
require('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });

module.exports = function (Constructor, NAME, next) {
  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
  setToStringTag(Constructor, NAME + ' Iterator');
};

},{"./_hide":93,"./_object-create":109,"./_property-desc":120,"./_set-to-string-tag":123,"./_wks":136}],102:[function(require,module,exports){
'use strict';
var LIBRARY = require('./_library');
var $export = require('./_export');
var redefine = require('./_redefine');
var hide = require('./_hide');
var has = require('./_has');
var Iterators = require('./_iterators');
var $iterCreate = require('./_iter-create');
var setToStringTag = require('./_set-to-string-tag');
var getPrototypeOf = require('./_object-gpo');
var ITERATOR = require('./_wks')('iterator');
var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
var FF_ITERATOR = '@@iterator';
var KEYS = 'keys';
var VALUES = 'values';

var returnThis = function () { return this; };

module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
  $iterCreate(Constructor, NAME, next);
  var getMethod = function (kind) {
    if (!BUGGY && kind in proto) return proto[kind];
    switch (kind) {
      case KEYS: return function keys() { return new Constructor(this, kind); };
      case VALUES: return function values() { return new Constructor(this, kind); };
    } return function entries() { return new Constructor(this, kind); };
  };
  var TAG = NAME + ' Iterator';
  var DEF_VALUES = DEFAULT == VALUES;
  var VALUES_BUG = false;
  var proto = Base.prototype;
  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
  var $default = $native || getMethod(DEFAULT);
  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
  var methods, key, IteratorPrototype;
  // Fix native
  if ($anyNative) {
    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
      // Set @@toStringTag to native iterators
      setToStringTag(IteratorPrototype, TAG, true);
      // fix for some old engines
      if (!LIBRARY && !has(IteratorPrototype, ITERATOR)) hide(IteratorPrototype, ITERATOR, returnThis);
    }
  }
  // fix Array#{values, @@iterator}.name in V8 / FF
  if (DEF_VALUES && $native && $native.name !== VALUES) {
    VALUES_BUG = true;
    $default = function values() { return $native.call(this); };
  }
  // Define iterator
  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
    hide(proto, ITERATOR, $default);
  }
  // Plug for library
  Iterators[NAME] = $default;
  Iterators[TAG] = returnThis;
  if (DEFAULT) {
    methods = {
      values: DEF_VALUES ? $default : getMethod(VALUES),
      keys: IS_SET ? $default : getMethod(KEYS),
      entries: $entries
    };
    if (FORCED) for (key in methods) {
      if (!(key in proto)) redefine(proto, key, methods[key]);
    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
  }
  return methods;
};

},{"./_export":89,"./_has":92,"./_hide":93,"./_iter-create":101,"./_iterators":105,"./_library":106,"./_object-gpo":116,"./_redefine":121,"./_set-to-string-tag":123,"./_wks":136}],103:[function(require,module,exports){
var ITERATOR = require('./_wks')('iterator');
var SAFE_CLOSING = false;

try {
  var riter = [7][ITERATOR]();
  riter['return'] = function () { SAFE_CLOSING = true; };
  // eslint-disable-next-line no-throw-literal
  Array.from(riter, function () { throw 2; });
} catch (e) { /* empty */ }

module.exports = function (exec, skipClosing) {
  if (!skipClosing && !SAFE_CLOSING) return false;
  var safe = false;
  try {
    var arr = [7];
    var iter = arr[ITERATOR]();
    iter.next = function () { return { done: safe = true }; };
    arr[ITERATOR] = function () { return iter; };
    exec(arr);
  } catch (e) { /* empty */ }
  return safe;
};

},{"./_wks":136}],104:[function(require,module,exports){
module.exports = function (done, value) {
  return { value: value, done: !!done };
};

},{}],105:[function(require,module,exports){
module.exports = {};

},{}],106:[function(require,module,exports){
module.exports = true;

},{}],107:[function(require,module,exports){
var META = require('./_uid')('meta');
var isObject = require('./_is-object');
var has = require('./_has');
var setDesc = require('./_object-dp').f;
var id = 0;
var isExtensible = Object.isExtensible || function () {
  return true;
};
var FREEZE = !require('./_fails')(function () {
  return isExtensible(Object.preventExtensions({}));
});
var setMeta = function (it) {
  setDesc(it, META, { value: {
    i: 'O' + ++id, // object ID
    w: {}          // weak collections IDs
  } });
};
var fastKey = function (it, create) {
  // return primitive with prefix
  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
  if (!has(it, META)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return 'F';
    // not necessary to add metadata
    if (!create) return 'E';
    // add missing metadata
    setMeta(it);
  // return object ID
  } return it[META].i;
};
var getWeak = function (it, create) {
  if (!has(it, META)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return true;
    // not necessary to add metadata
    if (!create) return false;
    // add missing metadata
    setMeta(it);
  // return hash weak collections IDs
  } return it[META].w;
};
// add metadata on freeze-family methods calling
var onFreeze = function (it) {
  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
  return it;
};
var meta = module.exports = {
  KEY: META,
  NEED: false,
  fastKey: fastKey,
  getWeak: getWeak,
  onFreeze: onFreeze
};

},{"./_fails":90,"./_has":92,"./_is-object":99,"./_object-dp":110,"./_uid":133}],108:[function(require,module,exports){
'use strict';
// 19.1.2.1 Object.assign(target, source, ...)
var getKeys = require('./_object-keys');
var gOPS = require('./_object-gops');
var pIE = require('./_object-pie');
var toObject = require('./_to-object');
var IObject = require('./_iobject');
var $assign = Object.assign;

// should work with symbols and should have deterministic property order (V8 bug)
module.exports = !$assign || require('./_fails')(function () {
  var A = {};
  var B = {};
  // eslint-disable-next-line no-undef
  var S = Symbol();
  var K = 'abcdefghijklmnopqrst';
  A[S] = 7;
  K.split('').forEach(function (k) { B[k] = k; });
  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
  var T = toObject(target);
  var aLen = arguments.length;
  var index = 1;
  var getSymbols = gOPS.f;
  var isEnum = pIE.f;
  while (aLen > index) {
    var S = IObject(arguments[index++]);
    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
  } return T;
} : $assign;

},{"./_fails":90,"./_iobject":96,"./_object-gops":115,"./_object-keys":118,"./_object-pie":119,"./_to-object":131}],109:[function(require,module,exports){
// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
var anObject = require('./_an-object');
var dPs = require('./_object-dps');
var enumBugKeys = require('./_enum-bug-keys');
var IE_PROTO = require('./_shared-key')('IE_PROTO');
var Empty = function () { /* empty */ };
var PROTOTYPE = 'prototype';

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var createDict = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = require('./_dom-create')('iframe');
  var i = enumBugKeys.length;
  var lt = '<';
  var gt = '>';
  var iframeDocument;
  iframe.style.display = 'none';
  require('./_html').appendChild(iframe);
  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
  // createDict = iframe.contentWindow.Object;
  // html.removeChild(iframe);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
  iframeDocument.close();
  createDict = iframeDocument.F;
  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
  return createDict();
};

module.exports = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    Empty[PROTOTYPE] = anObject(O);
    result = new Empty();
    Empty[PROTOTYPE] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO] = O;
  } else result = createDict();
  return Properties === undefined ? result : dPs(result, Properties);
};

},{"./_an-object":77,"./_dom-create":86,"./_enum-bug-keys":87,"./_html":94,"./_object-dps":111,"./_shared-key":124}],110:[function(require,module,exports){
var anObject = require('./_an-object');
var IE8_DOM_DEFINE = require('./_ie8-dom-define');
var toPrimitive = require('./_to-primitive');
var dP = Object.defineProperty;

exports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPrimitive(P, true);
  anObject(Attributes);
  if (IE8_DOM_DEFINE) try {
    return dP(O, P, Attributes);
  } catch (e) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};

},{"./_an-object":77,"./_descriptors":85,"./_ie8-dom-define":95,"./_to-primitive":132}],111:[function(require,module,exports){
var dP = require('./_object-dp');
var anObject = require('./_an-object');
var getKeys = require('./_object-keys');

module.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var keys = getKeys(Properties);
  var length = keys.length;
  var i = 0;
  var P;
  while (length > i) dP.f(O, P = keys[i++], Properties[P]);
  return O;
};

},{"./_an-object":77,"./_descriptors":85,"./_object-dp":110,"./_object-keys":118}],112:[function(require,module,exports){
var pIE = require('./_object-pie');
var createDesc = require('./_property-desc');
var toIObject = require('./_to-iobject');
var toPrimitive = require('./_to-primitive');
var has = require('./_has');
var IE8_DOM_DEFINE = require('./_ie8-dom-define');
var gOPD = Object.getOwnPropertyDescriptor;

exports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {
  O = toIObject(O);
  P = toPrimitive(P, true);
  if (IE8_DOM_DEFINE) try {
    return gOPD(O, P);
  } catch (e) { /* empty */ }
  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
};

},{"./_descriptors":85,"./_has":92,"./_ie8-dom-define":95,"./_object-pie":119,"./_property-desc":120,"./_to-iobject":129,"./_to-primitive":132}],113:[function(require,module,exports){
// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
var toIObject = require('./_to-iobject');
var gOPN = require('./_object-gopn').f;
var toString = {}.toString;

var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return gOPN(it);
  } catch (e) {
    return windowNames.slice();
  }
};

module.exports.f = function getOwnPropertyNames(it) {
  return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
};

},{"./_object-gopn":114,"./_to-iobject":129}],114:[function(require,module,exports){
// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
var $keys = require('./_object-keys-internal');
var hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');

exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return $keys(O, hiddenKeys);
};

},{"./_enum-bug-keys":87,"./_object-keys-internal":117}],115:[function(require,module,exports){
exports.f = Object.getOwnPropertySymbols;

},{}],116:[function(require,module,exports){
// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
var has = require('./_has');
var toObject = require('./_to-object');
var IE_PROTO = require('./_shared-key')('IE_PROTO');
var ObjectProto = Object.prototype;

module.exports = Object.getPrototypeOf || function (O) {
  O = toObject(O);
  if (has(O, IE_PROTO)) return O[IE_PROTO];
  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
    return O.constructor.prototype;
  } return O instanceof Object ? ObjectProto : null;
};

},{"./_has":92,"./_shared-key":124,"./_to-object":131}],117:[function(require,module,exports){
var has = require('./_has');
var toIObject = require('./_to-iobject');
var arrayIndexOf = require('./_array-includes')(false);
var IE_PROTO = require('./_shared-key')('IE_PROTO');

module.exports = function (object, names) {
  var O = toIObject(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (has(O, key = names[i++])) {
    ~arrayIndexOf(result, key) || result.push(key);
  }
  return result;
};

},{"./_array-includes":78,"./_has":92,"./_shared-key":124,"./_to-iobject":129}],118:[function(require,module,exports){
// 19.1.2.14 / 15.2.3.14 Object.keys(O)
var $keys = require('./_object-keys-internal');
var enumBugKeys = require('./_enum-bug-keys');

module.exports = Object.keys || function keys(O) {
  return $keys(O, enumBugKeys);
};

},{"./_enum-bug-keys":87,"./_object-keys-internal":117}],119:[function(require,module,exports){
exports.f = {}.propertyIsEnumerable;

},{}],120:[function(require,module,exports){
module.exports = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};

},{}],121:[function(require,module,exports){
module.exports = require('./_hide');

},{"./_hide":93}],122:[function(require,module,exports){
// Works with __proto__ only. Old v8 can't work with null proto objects.
/* eslint-disable no-proto */
var isObject = require('./_is-object');
var anObject = require('./_an-object');
var check = function (O, proto) {
  anObject(O);
  if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
};
module.exports = {
  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
    function (test, buggy, set) {
      try {
        set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);
        set(test, []);
        buggy = !(test instanceof Array);
      } catch (e) { buggy = true; }
      return function setPrototypeOf(O, proto) {
        check(O, proto);
        if (buggy) O.__proto__ = proto;
        else set(O, proto);
        return O;
      };
    }({}, false) : undefined),
  check: check
};

},{"./_an-object":77,"./_ctx":83,"./_is-object":99,"./_object-gopd":112}],123:[function(require,module,exports){
var def = require('./_object-dp').f;
var has = require('./_has');
var TAG = require('./_wks')('toStringTag');

module.exports = function (it, tag, stat) {
  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
};

},{"./_has":92,"./_object-dp":110,"./_wks":136}],124:[function(require,module,exports){
var shared = require('./_shared')('keys');
var uid = require('./_uid');
module.exports = function (key) {
  return shared[key] || (shared[key] = uid(key));
};

},{"./_shared":125,"./_uid":133}],125:[function(require,module,exports){
var global = require('./_global');
var SHARED = '__core-js_shared__';
var store = global[SHARED] || (global[SHARED] = {});
module.exports = function (key) {
  return store[key] || (store[key] = {});
};

},{"./_global":91}],126:[function(require,module,exports){
var toInteger = require('./_to-integer');
var defined = require('./_defined');
// true  -> String#at
// false -> String#codePointAt
module.exports = function (TO_STRING) {
  return function (that, pos) {
    var s = String(defined(that));
    var i = toInteger(pos);
    var l = s.length;
    var a, b;
    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
    a = s.charCodeAt(i);
    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
      ? TO_STRING ? s.charAt(i) : a
      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
  };
};

},{"./_defined":84,"./_to-integer":128}],127:[function(require,module,exports){
var toInteger = require('./_to-integer');
var max = Math.max;
var min = Math.min;
module.exports = function (index, length) {
  index = toInteger(index);
  return index < 0 ? max(index + length, 0) : min(index, length);
};

},{"./_to-integer":128}],128:[function(require,module,exports){
// 7.1.4 ToInteger
var ceil = Math.ceil;
var floor = Math.floor;
module.exports = function (it) {
  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
};

},{}],129:[function(require,module,exports){
// to indexed object, toObject with fallback for non-array-like ES3 strings
var IObject = require('./_iobject');
var defined = require('./_defined');
module.exports = function (it) {
  return IObject(defined(it));
};

},{"./_defined":84,"./_iobject":96}],130:[function(require,module,exports){
// 7.1.15 ToLength
var toInteger = require('./_to-integer');
var min = Math.min;
module.exports = function (it) {
  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
};

},{"./_to-integer":128}],131:[function(require,module,exports){
// 7.1.13 ToObject(argument)
var defined = require('./_defined');
module.exports = function (it) {
  return Object(defined(it));
};

},{"./_defined":84}],132:[function(require,module,exports){
// 7.1.1 ToPrimitive(input [, PreferredType])
var isObject = require('./_is-object');
// instead of the ES6 spec version, we didn't implement @@toPrimitive case
// and the second argument - flag - preferred type is a string
module.exports = function (it, S) {
  if (!isObject(it)) return it;
  var fn, val;
  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  throw TypeError("Can't convert object to primitive value");
};

},{"./_is-object":99}],133:[function(require,module,exports){
var id = 0;
var px = Math.random();
module.exports = function (key) {
  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
};

},{}],134:[function(require,module,exports){
var global = require('./_global');
var core = require('./_core');
var LIBRARY = require('./_library');
var wksExt = require('./_wks-ext');
var defineProperty = require('./_object-dp').f;
module.exports = function (name) {
  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });
};

},{"./_core":81,"./_global":91,"./_library":106,"./_object-dp":110,"./_wks-ext":135}],135:[function(require,module,exports){
exports.f = require('./_wks');

},{"./_wks":136}],136:[function(require,module,exports){
var store = require('./_shared')('wks');
var uid = require('./_uid');
var Symbol = require('./_global').Symbol;
var USE_SYMBOL = typeof Symbol == 'function';

var $exports = module.exports = function (name) {
  return store[name] || (store[name] =
    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
};

$exports.store = store;

},{"./_global":91,"./_shared":125,"./_uid":133}],137:[function(require,module,exports){
var classof = require('./_classof');
var ITERATOR = require('./_wks')('iterator');
var Iterators = require('./_iterators');
module.exports = require('./_core').getIteratorMethod = function (it) {
  if (it != undefined) return it[ITERATOR]
    || it['@@iterator']
    || Iterators[classof(it)];
};

},{"./_classof":79,"./_core":81,"./_iterators":105,"./_wks":136}],138:[function(require,module,exports){
var anObject = require('./_an-object');
var get = require('./core.get-iterator-method');
module.exports = require('./_core').getIterator = function (it) {
  var iterFn = get(it);
  if (typeof iterFn != 'function') throw TypeError(it + ' is not iterable!');
  return anObject(iterFn.call(it));
};

},{"./_an-object":77,"./_core":81,"./core.get-iterator-method":137}],139:[function(require,module,exports){
var classof = require('./_classof');
var ITERATOR = require('./_wks')('iterator');
var Iterators = require('./_iterators');
module.exports = require('./_core').isIterable = function (it) {
  var O = Object(it);
  return O[ITERATOR] !== undefined
    || '@@iterator' in O
    // eslint-disable-next-line no-prototype-builtins
    || Iterators.hasOwnProperty(classof(O));
};

},{"./_classof":79,"./_core":81,"./_iterators":105,"./_wks":136}],140:[function(require,module,exports){
'use strict';
var ctx = require('./_ctx');
var $export = require('./_export');
var toObject = require('./_to-object');
var call = require('./_iter-call');
var isArrayIter = require('./_is-array-iter');
var toLength = require('./_to-length');
var createProperty = require('./_create-property');
var getIterFn = require('./core.get-iterator-method');

$export($export.S + $export.F * !require('./_iter-detect')(function (iter) { Array.from(iter); }), 'Array', {
  // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
  from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
    var O = toObject(arrayLike);
    var C = typeof this == 'function' ? this : Array;
    var aLen = arguments.length;
    var mapfn = aLen > 1 ? arguments[1] : undefined;
    var mapping = mapfn !== undefined;
    var index = 0;
    var iterFn = getIterFn(O);
    var length, result, step, iterator;
    if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);
    // if object isn't iterable or it's array with default iterator - use simple case
    if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {
      for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
        createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);
      }
    } else {
      length = toLength(O.length);
      for (result = new C(length); length > index; index++) {
        createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
      }
    }
    result.length = index;
    return result;
  }
});

},{"./_create-property":82,"./_ctx":83,"./_export":89,"./_is-array-iter":97,"./_iter-call":100,"./_iter-detect":103,"./_to-length":130,"./_to-object":131,"./core.get-iterator-method":137}],141:[function(require,module,exports){
'use strict';
var addToUnscopables = require('./_add-to-unscopables');
var step = require('./_iter-step');
var Iterators = require('./_iterators');
var toIObject = require('./_to-iobject');

// 22.1.3.4 Array.prototype.entries()
// 22.1.3.13 Array.prototype.keys()
// 22.1.3.29 Array.prototype.values()
// 22.1.3.30 Array.prototype[@@iterator]()
module.exports = require('./_iter-define')(Array, 'Array', function (iterated, kind) {
  this._t = toIObject(iterated); // target
  this._i = 0;                   // next index
  this._k = kind;                // kind
// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
}, function () {
  var O = this._t;
  var kind = this._k;
  var index = this._i++;
  if (!O || index >= O.length) {
    this._t = undefined;
    return step(1);
  }
  if (kind == 'keys') return step(0, index);
  if (kind == 'values') return step(0, O[index]);
  return step(0, [index, O[index]]);
}, 'values');

// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
Iterators.Arguments = Iterators.Array;

addToUnscopables('keys');
addToUnscopables('values');
addToUnscopables('entries');

},{"./_add-to-unscopables":76,"./_iter-define":102,"./_iter-step":104,"./_iterators":105,"./_to-iobject":129}],142:[function(require,module,exports){
// 19.1.3.1 Object.assign(target, source)
var $export = require('./_export');

$export($export.S + $export.F, 'Object', { assign: require('./_object-assign') });

},{"./_export":89,"./_object-assign":108}],143:[function(require,module,exports){
var $export = require('./_export');
// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
$export($export.S, 'Object', { create: require('./_object-create') });

},{"./_export":89,"./_object-create":109}],144:[function(require,module,exports){
var $export = require('./_export');
// 19.1.2.4 / 15.2.3.6 Object.defineProperty(O, P, Attributes)
$export($export.S + $export.F * !require('./_descriptors'), 'Object', { defineProperty: require('./_object-dp').f });

},{"./_descriptors":85,"./_export":89,"./_object-dp":110}],145:[function(require,module,exports){
// 19.1.3.19 Object.setPrototypeOf(O, proto)
var $export = require('./_export');
$export($export.S, 'Object', { setPrototypeOf: require('./_set-proto').set });

},{"./_export":89,"./_set-proto":122}],146:[function(require,module,exports){
arguments[4][38][0].apply(exports,arguments)
},{"dup":38}],147:[function(require,module,exports){
'use strict';
var $at = require('./_string-at')(true);

// 21.1.3.27 String.prototype[@@iterator]()
require('./_iter-define')(String, 'String', function (iterated) {
  this._t = String(iterated); // target
  this._i = 0;                // next index
// 21.1.5.2.1 %StringIteratorPrototype%.next()
}, function () {
  var O = this._t;
  var index = this._i;
  var point;
  if (index >= O.length) return { value: undefined, done: true };
  point = $at(O, index);
  this._i += point.length;
  return { value: point, done: false };
});

},{"./_iter-define":102,"./_string-at":126}],148:[function(require,module,exports){
'use strict';
// ECMAScript 6 symbols shim
var global = require('./_global');
var has = require('./_has');
var DESCRIPTORS = require('./_descriptors');
var $export = require('./_export');
var redefine = require('./_redefine');
var META = require('./_meta').KEY;
var $fails = require('./_fails');
var shared = require('./_shared');
var setToStringTag = require('./_set-to-string-tag');
var uid = require('./_uid');
var wks = require('./_wks');
var wksExt = require('./_wks-ext');
var wksDefine = require('./_wks-define');
var enumKeys = require('./_enum-keys');
var isArray = require('./_is-array');
var anObject = require('./_an-object');
var toIObject = require('./_to-iobject');
var toPrimitive = require('./_to-primitive');
var createDesc = require('./_property-desc');
var _create = require('./_object-create');
var gOPNExt = require('./_object-gopn-ext');
var $GOPD = require('./_object-gopd');
var $DP = require('./_object-dp');
var $keys = require('./_object-keys');
var gOPD = $GOPD.f;
var dP = $DP.f;
var gOPN = gOPNExt.f;
var $Symbol = global.Symbol;
var $JSON = global.JSON;
var _stringify = $JSON && $JSON.stringify;
var PROTOTYPE = 'prototype';
var HIDDEN = wks('_hidden');
var TO_PRIMITIVE = wks('toPrimitive');
var isEnum = {}.propertyIsEnumerable;
var SymbolRegistry = shared('symbol-registry');
var AllSymbols = shared('symbols');
var OPSymbols = shared('op-symbols');
var ObjectProto = Object[PROTOTYPE];
var USE_NATIVE = typeof $Symbol == 'function';
var QObject = global.QObject;
// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDesc = DESCRIPTORS && $fails(function () {
  return _create(dP({}, 'a', {
    get: function () { return dP(this, 'a', { value: 7 }).a; }
  })).a != 7;
}) ? function (it, key, D) {
  var protoDesc = gOPD(ObjectProto, key);
  if (protoDesc) delete ObjectProto[key];
  dP(it, key, D);
  if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
} : dP;

var wrap = function (tag) {
  var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
  sym._k = tag;
  return sym;
};

var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  return it instanceof $Symbol;
};

var $defineProperty = function defineProperty(it, key, D) {
  if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
  anObject(it);
  key = toPrimitive(key, true);
  anObject(D);
  if (has(AllSymbols, key)) {
    if (!D.enumerable) {
      if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
      it[HIDDEN][key] = true;
    } else {
      if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
      D = _create(D, { enumerable: createDesc(0, false) });
    } return setSymbolDesc(it, key, D);
  } return dP(it, key, D);
};
var $defineProperties = function defineProperties(it, P) {
  anObject(it);
  var keys = enumKeys(P = toIObject(P));
  var i = 0;
  var l = keys.length;
  var key;
  while (l > i) $defineProperty(it, key = keys[i++], P[key]);
  return it;
};
var $create = function create(it, P) {
  return P === undefined ? _create(it) : $defineProperties(_create(it), P);
};
var $propertyIsEnumerable = function propertyIsEnumerable(key) {
  var E = isEnum.call(this, key = toPrimitive(key, true));
  if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
};
var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
  it = toIObject(it);
  key = toPrimitive(key, true);
  if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
  var D = gOPD(it, key);
  if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
  return D;
};
var $getOwnPropertyNames = function getOwnPropertyNames(it) {
  var names = gOPN(toIObject(it));
  var result = [];
  var i = 0;
  var key;
  while (names.length > i) {
    if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
  } return result;
};
var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
  var IS_OP = it === ObjectProto;
  var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
  var result = [];
  var i = 0;
  var key;
  while (names.length > i) {
    if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
  } return result;
};

// 19.4.1.1 Symbol([description])
if (!USE_NATIVE) {
  $Symbol = function Symbol() {
    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
    var $set = function (value) {
      if (this === ObjectProto) $set.call(OPSymbols, value);
      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDesc(this, tag, createDesc(1, value));
    };
    if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });
    return wrap(tag);
  };
  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
    return this._k;
  });

  $GOPD.f = $getOwnPropertyDescriptor;
  $DP.f = $defineProperty;
  require('./_object-gopn').f = gOPNExt.f = $getOwnPropertyNames;
  require('./_object-pie').f = $propertyIsEnumerable;
  require('./_object-gops').f = $getOwnPropertySymbols;

  if (DESCRIPTORS && !require('./_library')) {
    redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
  }

  wksExt.f = function (name) {
    return wrap(wks(name));
  };
}

$export($export.G + $export.W + $export.F * !USE_NATIVE, { Symbol: $Symbol });

for (var es6Symbols = (
  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
).split(','), j = 0; es6Symbols.length > j;)wks(es6Symbols[j++]);

for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) wksDefine(wellKnownSymbols[k++]);

$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
  // 19.4.2.1 Symbol.for(key)
  'for': function (key) {
    return has(SymbolRegistry, key += '')
      ? SymbolRegistry[key]
      : SymbolRegistry[key] = $Symbol(key);
  },
  // 19.4.2.5 Symbol.keyFor(sym)
  keyFor: function keyFor(sym) {
    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');
    for (var key in SymbolRegistry) if (SymbolRegistry[key] === sym) return key;
  },
  useSetter: function () { setter = true; },
  useSimple: function () { setter = false; }
});

$export($export.S + $export.F * !USE_NATIVE, 'Object', {
  // 19.1.2.2 Object.create(O [, Properties])
  create: $create,
  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
  defineProperty: $defineProperty,
  // 19.1.2.3 Object.defineProperties(O, Properties)
  defineProperties: $defineProperties,
  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
  // 19.1.2.7 Object.getOwnPropertyNames(O)
  getOwnPropertyNames: $getOwnPropertyNames,
  // 19.1.2.8 Object.getOwnPropertySymbols(O)
  getOwnPropertySymbols: $getOwnPropertySymbols
});

// 24.3.2 JSON.stringify(value [, replacer [, space]])
$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
  var S = $Symbol();
  // MS Edge converts symbol values to JSON as {}
  // WebKit converts symbol values to JSON as null
  // V8 throws on boxed symbols
  return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';
})), 'JSON', {
  stringify: function stringify(it) {
    if (it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
    var args = [it];
    var i = 1;
    var replacer, $replacer;
    while (arguments.length > i) args.push(arguments[i++]);
    replacer = args[1];
    if (typeof replacer == 'function') $replacer = replacer;
    if ($replacer || !isArray(replacer)) replacer = function (key, value) {
      if ($replacer) value = $replacer.call(this, key, value);
      if (!isSymbol(value)) return value;
    };
    args[1] = replacer;
    return _stringify.apply($JSON, args);
  }
});

// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
$Symbol[PROTOTYPE][TO_PRIMITIVE] || require('./_hide')($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
// 19.4.3.5 Symbol.prototype[@@toStringTag]
setToStringTag($Symbol, 'Symbol');
// 20.2.1.9 Math[@@toStringTag]
setToStringTag(Math, 'Math', true);
// 24.3.3 JSON[@@toStringTag]
setToStringTag(global.JSON, 'JSON', true);

},{"./_an-object":77,"./_descriptors":85,"./_enum-keys":88,"./_export":89,"./_fails":90,"./_global":91,"./_has":92,"./_hide":93,"./_is-array":98,"./_library":106,"./_meta":107,"./_object-create":109,"./_object-dp":110,"./_object-gopd":112,"./_object-gopn":114,"./_object-gopn-ext":113,"./_object-gops":115,"./_object-keys":118,"./_object-pie":119,"./_property-desc":120,"./_redefine":121,"./_set-to-string-tag":123,"./_shared":125,"./_to-iobject":129,"./_to-primitive":132,"./_uid":133,"./_wks":136,"./_wks-define":134,"./_wks-ext":135}],149:[function(require,module,exports){
require('./_wks-define')('asyncIterator');

},{"./_wks-define":134}],150:[function(require,module,exports){
require('./_wks-define')('observable');

},{"./_wks-define":134}],151:[function(require,module,exports){
require('./es6.array.iterator');
var global = require('./_global');
var hide = require('./_hide');
var Iterators = require('./_iterators');
var TO_STRING_TAG = require('./_wks')('toStringTag');

var DOMIterables = ('CSSRuleList,CSSStyleDeclaration,CSSValueList,ClientRectList,DOMRectList,DOMStringList,' +
  'DOMTokenList,DataTransferItemList,FileList,HTMLAllCollection,HTMLCollection,HTMLFormElement,HTMLSelectElement,' +
  'MediaList,MimeTypeArray,NamedNodeMap,NodeList,PaintRequestList,Plugin,PluginArray,SVGLengthList,SVGNumberList,' +
  'SVGPathSegList,SVGPointList,SVGStringList,SVGTransformList,SourceBufferList,StyleSheetList,TextTrackCueList,' +
  'TextTrackList,TouchList').split(',');

for (var i = 0; i < DOMIterables.length; i++) {
  var NAME = DOMIterables[i];
  var Collection = global[NAME];
  var proto = Collection && Collection.prototype;
  if (proto && !proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
  Iterators[NAME] = Iterators.Array;
}

},{"./_global":91,"./_hide":93,"./_iterators":105,"./_wks":136,"./es6.array.iterator":141}],152:[function(require,module,exports){
(function (Buffer){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.

function isArray(arg) {
  if (Array.isArray) {
    return Array.isArray(arg);
  }
  return objectToString(arg) === '[object Array]';
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = Buffer.isBuffer;

function objectToString(o) {
  return Object.prototype.toString.call(o);
}

}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
},{"../../is-buffer/index.js":236}],153:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var _require = require('./errors'),
    CucumberExpressionError = _require.CucumberExpressionError;

var Argument = function () {
  _createClass(Argument, null, [{
    key: 'build',
    value: function build(treeRegexp, text, parameterTypes) {
      var group = treeRegexp.match(text);
      if (!group) return null;

      var argGroups = group.children;

      if (argGroups.length !== parameterTypes.length) {
        throw new CucumberExpressionError('Expression ' + treeRegexp.regexp + ' has ' + argGroups.length + ' capture groups (' + argGroups.map(function (g) {
          return g.value;
        }) + '), but there were ' + parameterTypes.length + ' parameter types (' + parameterTypes.map(function (p) {
          return p.name;
        }) + ')');
      }

      return parameterTypes.map(function (parameterType, i) {
        return new Argument(argGroups[i], parameterType);
      });
    }
  }]);

  function Argument(group, parameterType) {
    _classCallCheck(this, Argument);

    this._group = group;
    this._parameterType = parameterType;
  }

  _createClass(Argument, [{
    key: 'getValue',


    /**
     * Get the value returned by the parameter type's transformer function.
     *
     * @param thisObj the object in which the transformer function is applied.
     */
    value: function getValue(thisObj) {
      var groupValues = this._group ? this._group.values : null;
      return this._parameterType.transform(thisObj, groupValues);
    }
  }, {
    key: 'group',
    get: function get() {
      return this._group;
    }
  }]);

  return Argument;
}();

module.exports = Argument;
},{"./errors":157}],154:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var GeneratedExpression = require('./generated_expression');

var CombinatorialGeneratedExpressionFactory = function () {
  function CombinatorialGeneratedExpressionFactory(expressionTemplate, parameterTypeCombinations) {
    _classCallCheck(this, CombinatorialGeneratedExpressionFactory);

    this._expressionTemplate = expressionTemplate;
    this._parameterTypeCombinations = parameterTypeCombinations;
  }

  _createClass(CombinatorialGeneratedExpressionFactory, [{
    key: 'generateExpressions',
    value: function generateExpressions() {
      var generatedExpressions = [];
      this._generatePermutations(generatedExpressions, 0, []);
      return generatedExpressions;
    }
  }, {
    key: '_generatePermutations',
    value: function _generatePermutations(generatedExpressions, depth, currentParameterTypes) {
      if (depth === this._parameterTypeCombinations.length) {
        generatedExpressions.push(new GeneratedExpression(this._expressionTemplate, currentParameterTypes));
        return;
      }

      for (var i = 0; i < this._parameterTypeCombinations[depth].length; ++i) {
        var newCurrentParameterTypes = currentParameterTypes.slice(); // clone
        newCurrentParameterTypes.push(this._parameterTypeCombinations[depth][i]);
        this._generatePermutations(generatedExpressions, depth + 1, newCurrentParameterTypes);
      }
    }
  }]);

  return CombinatorialGeneratedExpressionFactory;
}();

module.exports = CombinatorialGeneratedExpressionFactory;
},{"./generated_expression":158}],155:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Argument = require('./argument');
var TreeRegexp = require('./tree_regexp');

var _require = require('./errors'),
    UndefinedParameterTypeError = _require.UndefinedParameterTypeError;

var CucumberExpression = function () {
  /**
   * @param expression
   * @param parameterTypeRegistry
   */
  function CucumberExpression(expression, parameterTypeRegistry) {
    _classCallCheck(this, CucumberExpression);

    // Does not include (){} characters because they have special meaning
    var ESCAPE_REGEXP = /([\\^[$.|?*+])/g;
    var PARAMETER_REGEXP = /{([^}]+)}/g;
    var OPTIONAL_REGEXP = /\(([^)]+)\)/g;
    var ALTERNATIVE_NON_WHITESPACE_TEXT_REGEXP = /([^\s^/]+)((\/[^\s^/]+)+)/g;

    this._expression = expression;
    this._parameterTypes = [];
    var regexp = '^';
    var match = void 0;
    var matchOffset = 0;

    // Does not include (){} because they have special meaning

    expression = expression.replace(ESCAPE_REGEXP, '\\$1');

    // Create non-capturing, optional capture groups from parenthesis
    expression = expression.replace(OPTIONAL_REGEXP, '(?:$1)?');

    expression = expression.replace(ALTERNATIVE_NON_WHITESPACE_TEXT_REGEXP, function (_, p1, p2) {
      return '(?:' + p1 + p2.replace(/\//g, '|') + ')';
    });

    while ((match = PARAMETER_REGEXP.exec(expression)) !== null) {
      var typeName = match[1];

      var parameterType = parameterTypeRegistry.lookupByTypeName(typeName);
      if (!parameterType) throw new UndefinedParameterTypeError(typeName);
      this._parameterTypes.push(parameterType);

      var text = expression.slice(matchOffset, match.index);
      var captureRegexp = buildCaptureRegexp(parameterType.regexps);
      matchOffset = PARAMETER_REGEXP.lastIndex;
      regexp += text;
      regexp += captureRegexp;
    }
    regexp += expression.slice(matchOffset);
    regexp += '$';
    this._treeRegexp = new TreeRegexp(regexp);
  }

  _createClass(CucumberExpression, [{
    key: 'match',
    value: function match(text) {
      return Argument.build(this._treeRegexp, text, this._parameterTypes);
    }
  }, {
    key: 'regexp',
    get: function get() {
      return this._treeRegexp.regexp;
    }
  }, {
    key: 'source',
    get: function get() {
      return this._expression;
    }
  }]);

  return CucumberExpression;
}();

function buildCaptureRegexp(regexps) {
  if (regexps.length === 1) {
    return '(' + regexps[0] + ')';
  }

  var captureGroups = regexps.map(function (group) {
    return '(?:' + group + ')';
  });

  return '(' + captureGroups.join('|') + ')';
}

module.exports = CucumberExpression;
},{"./argument":153,"./errors":157,"./tree_regexp":166}],156:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var util = require('util');
var ParameterTypeMatcher = require('./parameter_type_matcher');
var ParameterType = require('./parameter_type');
var CombinatorialGeneratedExpressionFactory = require('./combinatorial_generated_expression_factory');

var CucumberExpressionGenerator = function () {
  function CucumberExpressionGenerator(parameterTypeRegistry) {
    _classCallCheck(this, CucumberExpressionGenerator);

    this._parameterTypeRegistry = parameterTypeRegistry;
  }

  _createClass(CucumberExpressionGenerator, [{
    key: 'generateExpressions',
    value: function generateExpressions(text) {
      var parameterTypeCombinations = [];
      var parameterTypeMatchers = this._createParameterTypeMatchers(text);
      var expressionTemplate = '';
      var pos = 0;

      // eslint-disable-next-line no-constant-condition
      while (true) {
        var matchingParameterTypeMatchers = [];

        var _iteratorNormalCompletion = true;
        var _didIteratorError = false;
        var _iteratorError = undefined;

        try {
          for (var _iterator = parameterTypeMatchers[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
            var parameterTypeMatcher = _step.value;

            var advancedParameterTypeMatcher = parameterTypeMatcher.advanceTo(pos);
            if (advancedParameterTypeMatcher.find) {
              matchingParameterTypeMatchers.push(advancedParameterTypeMatcher);
            }
          }
        } catch (err) {
          _didIteratorError = true;
          _iteratorError = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion && _iterator.return) {
              _iterator.return();
            }
          } finally {
            if (_didIteratorError) {
              throw _iteratorError;
            }
          }
        }

        if (matchingParameterTypeMatchers.length > 0) {
          (function () {
            matchingParameterTypeMatchers = matchingParameterTypeMatchers.sort(ParameterTypeMatcher.compare);

            // Find all the best parameter type matchers, they are all candidates.
            var bestParameterTypeMatcher = matchingParameterTypeMatchers[0];
            var bestParameterTypeMatchers = matchingParameterTypeMatchers.filter(function (m) {
              return ParameterTypeMatcher.compare(m, bestParameterTypeMatcher) === 0;
            });

            // Build a list of parameter types without duplicates. The reason there
            // might be duplicates is that some parameter types have more than one regexp,
            // which means multiple ParameterTypeMatcher objects will have a reference to the
            // same ParameterType.
            // We're sorting the list so preferential parameter types are listed first.
            // Users are most likely to want these, so they should be listed at the top.
            var parameterTypes = [];
            var _iteratorNormalCompletion2 = true;
            var _didIteratorError2 = false;
            var _iteratorError2 = undefined;

            try {
              for (var _iterator2 = bestParameterTypeMatchers[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
                var _parameterTypeMatcher = _step2.value;

                if (parameterTypes.indexOf(_parameterTypeMatcher.parameterType) === -1) {
                  parameterTypes.push(_parameterTypeMatcher.parameterType);
                }
              }
            } catch (err) {
              _didIteratorError2 = true;
              _iteratorError2 = err;
            } finally {
              try {
                if (!_iteratorNormalCompletion2 && _iterator2.return) {
                  _iterator2.return();
                }
              } finally {
                if (_didIteratorError2) {
                  throw _iteratorError2;
                }
              }
            }

            parameterTypes = parameterTypes.sort(ParameterType.compare);

            parameterTypeCombinations.push(parameterTypes);

            expressionTemplate += escapeForUtilFormat(text.slice(pos, bestParameterTypeMatcher.start));
            expressionTemplate += '{%s}';

            pos = bestParameterTypeMatcher.start + bestParameterTypeMatcher.group.length;
          })();
        } else {
          break;
        }

        if (pos >= text.length) {
          break;
        }
      }

      expressionTemplate += escapeForUtilFormat(text.slice(pos));
      return new CombinatorialGeneratedExpressionFactory(expressionTemplate, parameterTypeCombinations).generateExpressions();
    }

    /**
     * @deprecated
     */

  }, {
    key: 'generateExpression',
    value: function generateExpression(text) {
      var _this = this;

      return util.deprecate(function () {
        return _this.generateExpressions(text)[0];
      }, 'CucumberExpressionGenerator.generateExpression: Use CucumberExpressionGenerator.generateExpressions instead')();
    }
  }, {
    key: '_createParameterTypeMatchers',
    value: function _createParameterTypeMatchers(text) {
      var parameterMatchers = [];
      var _iteratorNormalCompletion3 = true;
      var _didIteratorError3 = false;
      var _iteratorError3 = undefined;

      try {
        for (var _iterator3 = this._parameterTypeRegistry.parameterTypes[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
          var parameterType = _step3.value;

          if (parameterType.useForSnippets) {
            parameterMatchers = parameterMatchers.concat(this._createParameterTypeMatchers2(parameterType, text));
          }
        }
      } catch (err) {
        _didIteratorError3 = true;
        _iteratorError3 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion3 && _iterator3.return) {
            _iterator3.return();
          }
        } finally {
          if (_didIteratorError3) {
            throw _iteratorError3;
          }
        }
      }

      return parameterMatchers;
    }
  }, {
    key: '_createParameterTypeMatchers2',
    value: function _createParameterTypeMatchers2(parameterType, text) {
      // TODO: [].map
      var result = [];
      var _iteratorNormalCompletion4 = true;
      var _didIteratorError4 = false;
      var _iteratorError4 = undefined;

      try {
        for (var _iterator4 = parameterType.regexps[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
          var regexp = _step4.value;

          result.push(new ParameterTypeMatcher(parameterType, regexp, text));
        }
      } catch (err) {
        _didIteratorError4 = true;
        _iteratorError4 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion4 && _iterator4.return) {
            _iterator4.return();
          }
        } finally {
          if (_didIteratorError4) {
            throw _iteratorError4;
          }
        }
      }

      return result;
    }
  }]);

  return CucumberExpressionGenerator;
}();

function escapeForUtilFormat(s) {
  return s.replace(/%/g, '%%');
}

module.exports = CucumberExpressionGenerator;
},{"./combinatorial_generated_expression_factory":154,"./parameter_type":162,"./parameter_type_matcher":163,"util":309}],157:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var CucumberExpressionError = function (_Error) {
  _inherits(CucumberExpressionError, _Error);

  function CucumberExpressionError() {
    _classCallCheck(this, CucumberExpressionError);

    return _possibleConstructorReturn(this, (CucumberExpressionError.__proto__ || Object.getPrototypeOf(CucumberExpressionError)).apply(this, arguments));
  }

  return CucumberExpressionError;
}(Error);

var AmbiguousParameterTypeError = function (_CucumberExpressionEr) {
  _inherits(AmbiguousParameterTypeError, _CucumberExpressionEr);

  function AmbiguousParameterTypeError() {
    _classCallCheck(this, AmbiguousParameterTypeError);

    return _possibleConstructorReturn(this, (AmbiguousParameterTypeError.__proto__ || Object.getPrototypeOf(AmbiguousParameterTypeError)).apply(this, arguments));
  }

  _createClass(AmbiguousParameterTypeError, null, [{
    key: 'forConstructor',
    value: function forConstructor(keyName, keyValue, parameterTypes, generatedExpressions) {
      return new this('parameter type with ' + keyName + '=' + keyValue + ' is used by several parameter types: ' + parameterTypes + ', ' + generatedExpressions);
    }
  }, {
    key: 'forRegExp',
    value: function forRegExp(parameterTypeRegexp, expressionRegexp, parameterTypes, generatedExpressions) {
      return new this('Your Regular Expression ' + expressionRegexp + '\nmatches multiple parameter types with regexp ' + parameterTypeRegexp + ':\n   ' + this._parameterTypeNames(parameterTypes) + '\n\nI couldn\'t decide which one to use. You have two options:\n\n1) Use a Cucumber Expression instead of a Regular Expression. Try one of these:\n   ' + this._expressions(generatedExpressions) + '\n\n2) Make one of the parameter types preferential and continue to use a Regular Expression.\n');
    }
  }, {
    key: '_parameterTypeNames',
    value: function _parameterTypeNames(parameterTypes) {
      return parameterTypes.map(function (p) {
        return '{' + p.name + '}';
      }).join('\n   ');
    }
  }, {
    key: '_expressions',
    value: function _expressions(generatedExpressions) {
      return generatedExpressions.map(function (e) {
        return e.source;
      }).join('\n   ');
    }
  }]);

  return AmbiguousParameterTypeError;
}(CucumberExpressionError);

var UndefinedParameterTypeError = function (_CucumberExpressionEr2) {
  _inherits(UndefinedParameterTypeError, _CucumberExpressionEr2);

  function UndefinedParameterTypeError(typeName) {
    _classCallCheck(this, UndefinedParameterTypeError);

    return _possibleConstructorReturn(this, (UndefinedParameterTypeError.__proto__ || Object.getPrototypeOf(UndefinedParameterTypeError)).call(this, 'Undefined parameter type {' + typeName + '}'));
  }

  return UndefinedParameterTypeError;
}(CucumberExpressionError);

module.exports = {
  AmbiguousParameterTypeError: AmbiguousParameterTypeError,
  UndefinedParameterTypeError: UndefinedParameterTypeError,
  CucumberExpressionError: CucumberExpressionError
};
},{}],158:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var util = require('util');

var GeneratedExpression = function () {
  function GeneratedExpression(expressionTemplate, parameterTypes) {
    _classCallCheck(this, GeneratedExpression);

    this._expressionTemplate = expressionTemplate;
    this._parameterTypes = parameterTypes;
  }

  _createClass(GeneratedExpression, [{
    key: 'source',
    get: function get() {
      return util.format.apply(util, [this._expressionTemplate].concat(_toConsumableArray(this._parameterTypes.map(function (t) {
        return t.name;
      }))));
    }

    /**
     * Returns an array of parameter names to use in generated function/method signatures
     *
     * @returns {Array.<String>}
     */

  }, {
    key: 'parameterNames',
    get: function get() {
      var usageByTypeName = {};
      return this._parameterTypes.map(function (t) {
        return getParameterName(t.name, usageByTypeName);
      });
    }

    /**
     * @returns {Array.<ParameterType>}
     */

  }, {
    key: 'parameterTypes',
    get: function get() {
      return this._parameterTypes;
    }
  }]);

  return GeneratedExpression;
}();

function getParameterName(typeName, usageByTypeName) {
  var count = usageByTypeName[typeName];
  count = count ? count + 1 : 1;
  usageByTypeName[typeName] = count;

  return count === 1 ? typeName : '' + typeName + count;
}

module.exports = GeneratedExpression;
},{"util":309}],159:[function(require,module,exports){
"use strict";

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Group = function () {
  function Group(value, start, end, children) {
    _classCallCheck(this, Group);

    this._value = value;
    this._start = start;
    this._end = end;
    this._children = children;
  }

  _createClass(Group, [{
    key: "value",
    get: function get() {
      return this._value;
    }
  }, {
    key: "start",
    get: function get() {
      return this._start;
    }
  }, {
    key: "end",
    get: function get() {
      return this._end;
    }
  }, {
    key: "children",
    get: function get() {
      return this._children;
    }
  }, {
    key: "values",
    get: function get() {
      return (this.children.length === 0 ? [this] : this.children).map(function (g) {
        return g.value;
      });
    }
  }]);

  return Group;
}();

module.exports = Group;
},{}],160:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Group = require('./group');

var GroupBuilder = function () {
  function GroupBuilder() {
    _classCallCheck(this, GroupBuilder);

    this._groupBuilders = [];
    this._capturing = true;
  }

  _createClass(GroupBuilder, [{
    key: 'add',
    value: function add(groupBuilder) {
      this._groupBuilders.push(groupBuilder);
    }
  }, {
    key: 'build',
    value: function build(match, nextGroupIndex) {
      var groupIndex = nextGroupIndex();
      var children = this._groupBuilders.map(function (gb) {
        return gb.build(match, nextGroupIndex);
      });
      return new Group(match[groupIndex], match.index[groupIndex], match.index[groupIndex] + (match[groupIndex] || '').length, children);
    }
  }, {
    key: 'setNonCapturing',
    value: function setNonCapturing() {
      this._capturing = false;
    }
  }, {
    key: 'moveChildrenTo',
    value: function moveChildrenTo(groupBuilder) {
      this._groupBuilders.forEach(function (child) {
        return groupBuilder.add(child);
      });
    }
  }, {
    key: 'capturing',
    get: function get() {
      return this._capturing;
    }
  }, {
    key: 'children',
    get: function get() {
      return this._groupBuilders;
    }
  }]);

  return GroupBuilder;
}();

module.exports = GroupBuilder;
},{"./group":159}],161:[function(require,module,exports){
'use strict';

var CucumberExpression = require('./cucumber_expression');
var RegularExpression = require('./regular_expression');
var CucumberExpressionGenerator = require('./cucumber_expression_generator');
var ParameterTypeRegistry = require('./parameter_type_registry');
var ParameterType = require('./parameter_type');

module.exports = {
  CucumberExpression: CucumberExpression,
  RegularExpression: RegularExpression,
  CucumberExpressionGenerator: CucumberExpressionGenerator,
  ParameterTypeRegistry: ParameterTypeRegistry,
  ParameterType: ParameterType
};
},{"./cucumber_expression":155,"./cucumber_expression_generator":156,"./parameter_type":162,"./parameter_type_registry":164,"./regular_expression":165}],162:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var _require = require('./errors'),
    CucumberExpressionError = _require.CucumberExpressionError;

var ParameterType = function () {
  _createClass(ParameterType, null, [{
    key: 'compare',
    value: function compare(pt1, pt2) {
      if (pt1.preferForRegexpMatch && !pt2.preferForRegexpMatch) return -1;
      if (pt2.preferForRegexpMatch && !pt1.preferForRegexpMatch) return 1;
      return pt1.name.localeCompare(pt2.name);
    }

    /**
     * @param name {String} the name of the type
     * @param regexps {Array.<RegExp>,RegExp,Array.<String>,String} that matches the type
     * @param type {Function} the prototype (constructor) of the type. May be null.
     * @param transform {Function} function transforming string to another type. May be null.
     * @param useForSnippets {boolean} true if this should be used for snippets. Defaults to true.
     * @param preferForRegexpMatch {boolean} true if this is a preferential type. Defaults to false.
     */

  }]);

  function ParameterType(name, regexps, type, transform, useForSnippets, preferForRegexpMatch) {
    _classCallCheck(this, ParameterType);

    if (transform === undefined) transform = function transform(s) {
      return s;
    };
    if (useForSnippets === undefined) useForSnippets = true;
    if (preferForRegexpMatch === undefined) preferForRegexpMatch = false;
    this._name = name;
    this._regexps = stringArray(regexps);
    this._type = type;
    this._transform = transform;
    this._useForSnippets = useForSnippets;
    this._preferForRegexpMatch = preferForRegexpMatch;
  }

  _createClass(ParameterType, [{
    key: 'transform',
    value: function transform(thisObj, groupValues) {
      var args = void 0;
      if (this._transform.length === 1) {
        // transform function with arity 1.
        var nonNullGroupValues = groupValues.filter(function (v) {
          return v !== null && v !== undefined;
        });
        if (nonNullGroupValues.length >= 2) throw new CucumberExpressionError('Single transformer unexpectedly matched 2 values - "' + nonNullGroupValues[0] + '" and "' + nonNullGroupValues[1] + '"');
        args = [nonNullGroupValues[0]];
      } else {
        args = groupValues;
      }

      return this._transform.apply(thisObj, args);
    }
  }, {
    key: 'name',
    get: function get() {
      return this._name;
    }
  }, {
    key: 'regexps',
    get: function get() {
      return this._regexps;
    }
  }, {
    key: 'type',
    get: function get() {
      return this._type;
    }
  }, {
    key: 'preferForRegexpMatch',
    get: function get() {
      return this._preferForRegexpMatch;
    }
  }, {
    key: 'useForSnippets',
    get: function get() {
      return this._useForSnippets;
    }
  }]);

  return ParameterType;
}();

function stringArray(regexps) {
  var array = Array.isArray(regexps) ? regexps : [regexps];
  return array.map(function (r) {
    return typeof r === 'string' ? r : regexpSource(r);
  });
}

function regexpSource(regexp) {
  var flags = regexpFlags(regexp);

  var _arr = ['g', 'i', 'm', 'y'];
  for (var _i = 0; _i < _arr.length; _i++) {
    var flag = _arr[_i];
    if (flags.indexOf(flag) !== -1) throw new CucumberExpressionError('ParameterType Regexps can\'t use flag \'' + flag + '\'');
  }
  return regexp.source;
}

// Backport RegExp.flags for Node 4.x
// https://github.com/nodejs/node/issues/8390
//
// For some strange reason this is not needed for
// `./mocha dist/test`, but it is needed for
// `./mocha dist/test/parameter_type_test.js`
function regexpFlags(regexp) {
  var flags = regexp.flags;
  if (flags === undefined) {
    flags = '';
    if (regexp.ignoreCase) flags += 'i';
    if (regexp.global) flags += 'g';
    if (regexp.multiline) flags += 'm';
  }
  return flags;
}

module.exports = ParameterType;
},{"./errors":157}],163:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var ParameterTypeMatcher = function () {
  function ParameterTypeMatcher(parameter, regexp, text, matchPosition) {
    _classCallCheck(this, ParameterTypeMatcher);

    this._parameterType = parameter;
    this._treeRegexp = regexp;
    this._text = text;
    this._matchPosition = matchPosition || 0;

    var captureGroupRegexp = new RegExp('(' + regexp + ')');
    this._match = captureGroupRegexp.exec(text.slice(this._matchPosition));
  }

  _createClass(ParameterTypeMatcher, [{
    key: 'advanceTo',
    value: function advanceTo(newMatchPosition) {
      return new ParameterTypeMatcher(this._parameterType, this._treeRegexp, this._text, newMatchPosition);
    }
  }, {
    key: 'parameterType',
    get: function get() {
      return this._parameterType;
    }
  }, {
    key: 'find',
    get: function get() {
      return this._match && this.group !== '';
    }
  }, {
    key: 'start',
    get: function get() {
      return this._matchPosition + this._match.index;
    }
  }, {
    key: 'group',
    get: function get() {
      return this._match[0];
    }
  }], [{
    key: 'compare',
    value: function compare(a, b) {
      var posComparison = a.start - b.start;
      if (posComparison !== 0) return posComparison;
      var lengthComparison = b.group.length - a.group.length;
      if (lengthComparison !== 0) return lengthComparison;
      return 0;
    }
  }]);

  return ParameterTypeMatcher;
}();

module.exports = ParameterTypeMatcher;
},{}],164:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var ParameterType = require('./parameter_type');
var CucumberExpressionGenerator = require('./cucumber_expression_generator.js');

var _require = require('./errors'),
    CucumberExpressionError = _require.CucumberExpressionError,
    AmbiguousParameterTypeError = _require.AmbiguousParameterTypeError;

var INTEGER_REGEXPS = [/-?\d+/, /\d+/];
var FLOAT_REGEXP = /-?\d*\.\d+/;
var WORD_REGEXP = /\w+/;
var STRING_REGEXP = /"([^"\\]*(\\.[^"\\]*)*)"|'([^'\\]*(\\.[^'\\]*)*)'/;

var ParameterTypeRegistry = function () {
  function ParameterTypeRegistry() {
    _classCallCheck(this, ParameterTypeRegistry);

    this._parameterTypeByName = new Map();
    this._parameterTypesByRegexp = new Map();

    this.defineParameterType(new ParameterType('int', INTEGER_REGEXPS, Number, parseInt, true, true));
    this.defineParameterType(new ParameterType('float', FLOAT_REGEXP, Number, parseFloat, true, false));
    this.defineParameterType(new ParameterType('word', WORD_REGEXP, String, function (s) {
      return s;
    }, false, false));
    this.defineParameterType(new ParameterType('string', STRING_REGEXP, String, function (s) {
      return s.replace(/\\"/g, '"').replace(/\\'/g, "'");
    }, true, false));
  }

  _createClass(ParameterTypeRegistry, [{
    key: 'lookupByTypeName',
    value: function lookupByTypeName(typeName) {
      return this._parameterTypeByName.get(typeName);
    }
  }, {
    key: 'lookupByRegexp',
    value: function lookupByRegexp(parameterTypeRegexp, expressionRegexp, text) {
      var parameterTypes = this._parameterTypesByRegexp.get(parameterTypeRegexp);
      if (!parameterTypes) return null;
      if (parameterTypes.length > 1 && !parameterTypes[0].preferForRegexpMatch) {
        // We don't do this check on insertion because we only want to restrict
        // ambiguiuty when we look up by Regexp. Users of CucumberExpression should
        // not be restricted.
        var generatedExpressions = new CucumberExpressionGenerator(this).generateExpressions(text);
        throw new AmbiguousParameterTypeError.forRegExp(parameterTypeRegexp, expressionRegexp, parameterTypes, generatedExpressions);
      }
      return parameterTypes[0];
    }
  }, {
    key: 'defineParameterType',
    value: function defineParameterType(parameterType) {
      if (this._parameterTypeByName.has(parameterType.name)) throw new Error('There is already a parameter type with name ' + parameterType.name);
      this._parameterTypeByName.set(parameterType.name, parameterType);

      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        for (var _iterator = parameterType.regexps[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var parameterTypeRegexp = _step.value;

          if (!this._parameterTypesByRegexp.has(parameterTypeRegexp)) {
            this._parameterTypesByRegexp.set(parameterTypeRegexp, []);
          }
          var parameterTypes = this._parameterTypesByRegexp.get(parameterTypeRegexp);
          var existingParameterType = parameterTypes[0];
          if (parameterTypes.length > 0 && existingParameterType.preferForRegexpMatch && parameterType.preferForRegexpMatch) {
            throw new CucumberExpressionError('There can only be one preferential parameter type per regexp. ' + ('The regexp /' + parameterTypeRegexp + '/ is used for two preferential parameter types, {' + existingParameterType.name + '} and {' + parameterType.name + '}'));
          }
          if (parameterTypes.indexOf(parameterType) === -1) {
            parameterTypes.push(parameterType);
            this._parameterTypesByRegexp.set(parameterTypeRegexp, parameterTypes.sort(ParameterType.compare));
          }
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return) {
            _iterator.return();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }
    }
  }, {
    key: 'parameterTypes',
    get: function get() {
      return this._parameterTypeByName.values();
    }
  }]);

  return ParameterTypeRegistry;
}();

module.exports = ParameterTypeRegistry;
},{"./cucumber_expression_generator.js":156,"./errors":157,"./parameter_type":162}],165:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Argument = require('./argument');
var TreeRegexp = require('./tree_regexp');
var ParameterType = require('./parameter_type');

var RegularExpression = function () {
  function RegularExpression(expressionRegexp, parameterTypeRegistry) {
    _classCallCheck(this, RegularExpression);

    this._expressionRegexp = expressionRegexp;
    this._parameterTypeRegistry = parameterTypeRegistry;
    this._treeRegexp = new TreeRegexp(expressionRegexp);
  }

  _createClass(RegularExpression, [{
    key: 'match',
    value: function match(text) {
      var _this = this;

      var parameterTypes = this._treeRegexp.groupBuilder.children.map(function (groupBuilder) {
        var parameterTypeRegexp = groupBuilder.source;

        return _this._parameterTypeRegistry.lookupByRegexp(parameterTypeRegexp, _this._treeRegexp, text) || new ParameterType(parameterTypeRegexp, parameterTypeRegexp, String, function (s) {
          return s;
        }, false, false);
      });

      return Argument.build(this._treeRegexp, text, parameterTypes);
    }
  }, {
    key: 'regexp',
    get: function get() {
      return this._expressionRegexp;
    }
  }, {
    key: 'source',
    get: function get() {
      return this._expressionRegexp.source;
    }
  }]);

  return RegularExpression;
}();

module.exports = RegularExpression;
},{"./argument":153,"./parameter_type":162,"./tree_regexp":166}],166:[function(require,module,exports){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Regex = require('becke-ch--regex--s0-0-v1--base--pl--lib');
var GroupBuilder = require('./group_builder');

var TreeRegexp = function () {
  function TreeRegexp(regexp) {
    var _this = this;

    _classCallCheck(this, TreeRegexp);

    this._re = 'string' === typeof regexp ? new RegExp(regexp) : regexp;
    this._regex = new Regex(this._re.source, this._re.flags);

    var stack = [new GroupBuilder()];
    var groupStartStack = [];
    var last = null;
    var escaping = false;
    var nonCapturingMaybe = false;
    this._re.source.split('').forEach(function (c, n) {
      if (c === '(' && !escaping) {
        stack.push(new GroupBuilder());
        groupStartStack.push(n + 1);
        nonCapturingMaybe = false;
      } else if (c === ')' && !escaping) {
        var gb = stack.pop();
        var groupStart = groupStartStack.pop();
        if (gb.capturing) {
          gb.source = _this._re.source.substring(groupStart, n);
          stack[stack.length - 1].add(gb);
        } else {
          gb.moveChildrenTo(stack[stack.length - 1]);
        }
        nonCapturingMaybe = false;
      } else if (c === '?' && last === '(') {
        nonCapturingMaybe = true;
      } else if (c === ':' && nonCapturingMaybe) {
        stack[stack.length - 1].setNonCapturing();
        nonCapturingMaybe = false;
      }
      escaping = c === '\\' && !escaping;
      last = c;
    });
    this._groupBuilder = stack.pop();
  }

  _createClass(TreeRegexp, [{
    key: 'match',
    value: function match(s) {
      var match = this._regex.exec(s);
      if (!match) return null;
      var groupIndex = 0;
      var nextGroupIndex = function nextGroupIndex() {
        return groupIndex++;
      };
      return this._groupBuilder.build(match, nextGroupIndex);
    }
  }, {
    key: 'regexp',
    get: function get() {
      return this._re;
    }
  }, {
    key: 'groupBuilder',
    get: function get() {
      return this._groupBuilder;
    }
  }]);

  return TreeRegexp;
}();

module.exports = TreeRegexp;
},{"./group_builder":160,"becke-ch--regex--s0-0-v1--base--pl--lib":35}],167:[function(require,module,exports){
module.exports = {
  TagExpressionParser: require('./lib/tag_expression_parser')
};

},{"./lib/tag_expression_parser":168}],168:[function(require,module,exports){
const OPERAND = 'operand'
const OPERATOR = 'operator'

module.exports = function TagExpressionParser() {
  /**
   * Parses infix boolean expression (using Dijkstra's Shunting Yard algorithm)
   * and builds a tree of expressions. The root node of the expression is returned.
   *
   * This expression can be evaluated by passing in an array of literals that resolve to true
   */
  this.parse = function(infix) {
    var tokens = tokenize(infix)
    if (tokens.length === 0) return new True()
    var expressions = []
    var operators = []
    var expectedTokenType = OPERAND

    tokens.forEach(function(token) {
      if (isUnary(token)) {
        check(expectedTokenType, OPERAND)
        operators.push(token)
        expectedTokenType = OPERAND
      } else if (isBinary(token)) {
        check(expectedTokenType, OPERATOR)
        while (
          operators.length > 0 &&
          isOp(peek(operators)) &&
          ((ASSOC[token] === 'left' && PREC[token] <= PREC[peek(operators)]) ||
            (ASSOC[token] === 'right' && PREC[token] < PREC[peek(operators)]))
        ) {
          pushExpr(pop(operators), expressions)
        }
        operators.push(token)
        expectedTokenType = OPERAND
      } else if ('(' === token) {
        check(expectedTokenType, OPERAND)
        operators.push(token)
        expectedTokenType = OPERAND
      } else if (')' === token) {
        check(expectedTokenType, OPERATOR)
        while (operators.length > 0 && peek(operators) !== '(') {
          pushExpr(pop(operators), expressions)
        }
        if (operators.length === 0) {
          throw Error('Syntax error. Unmatched )')
        }
        if (peek(operators) === '(') {
          pop(operators)
        }
        expectedTokenType = OPERATOR
      } else {
        check(expectedTokenType, OPERAND)
        pushExpr(token, expressions)
        expectedTokenType = OPERATOR
      }
    })

    while (operators.length > 0) {
      if (peek(operators) === '(') {
        throw Error('Syntax error. Unmatched (')
      }
      pushExpr(pop(operators), expressions)
    }

    return pop(expressions)
  }

  var ASSOC = {
    or: 'left',
    and: 'left',
    not: 'right',
  }

  var PREC = {
    '(': -2,
    ')': -1,
    or: 0,
    and: 1,
    not: 2,
  }

  function tokenize(expr) {
    var tokens = []
    var isEscaped = false
    var token = undefined
    for (var i = 0; i < expr.length; i++) {
      var c = expr.charAt(i)
      if ('\\' === c) {
        isEscaped = true
      } else {
        if (/\s/.test(c)) {
          // skip
          if (token) {
            // end of token
            tokens.push(token.join(''))
            token = undefined
          }
        } else {
          switch (c) {
            case '(':
            case ')':
              if (!isEscaped) {
                if (token) {
                  // end of token
                  tokens.push(token.join(''))
                  token = undefined
                }
                tokens.push(c)
                break
              }
            default:
              token = token ? token : [] // start of token
              token.push(c)
              break
          }
        }
        isEscaped = false
      }
    }
    if (token) {
      tokens.push(token.join(''))
    }
    return tokens
  }

  function isUnary(token) {
    return 'not' === token
  }

  function isBinary(token) {
    return 'or' === token || 'and' === token
  }

  function isOp(token) {
    return ASSOC[token] !== undefined
  }

  function check(expectedTokenType, tokenType) {
    if (expectedTokenType !== tokenType) {
      throw new Error('Syntax error. Expected ' + expectedTokenType)
    }
  }

  function peek(stack) {
    return stack[stack.length - 1]
  }

  function pop(stack) {
    if (stack.length === 0) throw new Error('empty stack')
    return stack.pop()
  }

  function pushExpr(token, stack) {
    if (token === 'and') {
      var rightAndExpr = pop(stack)
      stack.push(new And(pop(stack), rightAndExpr))
    } else if (token === 'or') {
      var rightOrExpr = pop(stack)
      stack.push(new Or(pop(stack), rightOrExpr))
    } else if (token === 'not') {
      stack.push(new Not(pop(stack)))
    } else {
      stack.push(new Literal(token))
    }
  }

  function Literal(value) {
    this.evaluate = function(variables) {
      return variables.indexOf(value) !== -1
    }

    this.toString = function() {
      return value.replace(/\(/g, '\\(').replace(/\)/g, '\\)')
    }
  }

  function Or(leftExpr, rightExpr) {
    this.evaluate = function(variables) {
      return leftExpr.evaluate(variables) || rightExpr.evaluate(variables)
    }

    this.toString = function() {
      return '( ' + leftExpr.toString() + ' or ' + rightExpr.toString() + ' )'
    }
  }

  function And(leftExpr, rightExpr) {
    this.evaluate = function(variables) {
      return leftExpr.evaluate(variables) && rightExpr.evaluate(variables)
    }

    this.toString = function() {
      return '( ' + leftExpr.toString() + ' and ' + rightExpr.toString() + ' )'
    }
  }

  function Not(expr) {
    this.evaluate = function(variables) {
      return !expr.evaluate(variables)
    }

    this.toString = function() {
      return 'not ( ' + expr.toString() + ' )'
    }
  }

  function True() {
    this.evaluate = function() {
      return true
    }

    this.toString = function() {
      return 'true'
    }
  }
}

},{}],169:[function(require,module,exports){
/*!

 diff v3.4.0

Software License Agreement (BSD License)

Copyright (c) 2009-2015, Kevin Decker <kpdecker@gmail.com>

All rights reserved.

Redistribution and use of this software in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
  materials provided with the distribution.

* Neither the name of Kevin Decker nor the names of its
  contributors may be used to endorse or promote products
  derived from this software without specific prior
  written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@license
*/
(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else if(typeof exports === 'object')
		exports["JsDiff"] = factory();
	else
		root["JsDiff"] = factory();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};

/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {

/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId])
/******/ 			return installedModules[moduleId].exports;

/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			exports: {},
/******/ 			id: moduleId,
/******/ 			loaded: false
/******/ 		};

/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);

/******/ 		// Flag the module as loaded
/******/ 		module.loaded = true;

/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}


/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;

/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;

/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "";

/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.canonicalize = exports.convertChangesToXML = exports.convertChangesToDMP = exports.merge = exports.parsePatch = exports.applyPatches = exports.applyPatch = exports.createPatch = exports.createTwoFilesPatch = exports.structuredPatch = exports.diffArrays = exports.diffJson = exports.diffCss = exports.diffSentences = exports.diffTrimmedLines = exports.diffLines = exports.diffWordsWithSpace = exports.diffWords = exports.diffChars = exports.Diff = undefined;

	/*istanbul ignore end*/var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	/*istanbul ignore end*/var /*istanbul ignore start*/_character = __webpack_require__(2) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_word = __webpack_require__(3) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_sentence = __webpack_require__(6) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_css = __webpack_require__(7) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_json = __webpack_require__(8) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_array = __webpack_require__(9) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_apply = __webpack_require__(10) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_merge = __webpack_require__(13) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_create = __webpack_require__(14) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_dmp = __webpack_require__(16) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_xml = __webpack_require__(17) /*istanbul ignore end*/;

	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/* See LICENSE file for terms of use */

	/*
	 * Text diff implementation.
	 *
	 * This library supports the following APIS:
	 * JsDiff.diffChars: Character by character diff
	 * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace
	 * JsDiff.diffLines: Line based diff
	 *
	 * JsDiff.diffCss: Diff targeted at CSS content
	 *
	 * These methods are based on the implementation proposed in
	 * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986).
	 * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927
	 */
	exports. /*istanbul ignore end*/Diff = _base2['default'];
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffChars = _character.diffChars;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWords = _word.diffWords;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWordsWithSpace = _word.diffWordsWithSpace;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffLines = _line.diffLines;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffTrimmedLines = _line.diffTrimmedLines;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffSentences = _sentence.diffSentences;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffCss = _css.diffCss;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffJson = _json.diffJson;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffArrays = _array.diffArrays;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/structuredPatch = _create.structuredPatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/createTwoFilesPatch = _create.createTwoFilesPatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/createPatch = _create.createPatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatch = _apply.applyPatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatches = _apply.applyPatches;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/parsePatch = _parse.parsePatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/merge = _merge.merge;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/convertChangesToDMP = _dmp.convertChangesToDMP;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/convertChangesToXML = _xml.convertChangesToXML;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/canonicalize = _json.canonicalize;



/***/ }),
/* 1 */
/***/ (function(module, exports) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports['default'] = /*istanbul ignore end*/Diff;
	function Diff() {}

	Diff.prototype = {
	  /*istanbul ignore start*/ /*istanbul ignore end*/diff: function diff(oldString, newString) {
	    /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

	    var callback = options.callback;
	    if (typeof options === 'function') {
	      callback = options;
	      options = {};
	    }
	    this.options = options;

	    var self = this;

	    function done(value) {
	      if (callback) {
	        setTimeout(function () {
	          callback(undefined, value);
	        }, 0);
	        return true;
	      } else {
	        return value;
	      }
	    }

	    // Allow subclasses to massage the input prior to running
	    oldString = this.castInput(oldString);
	    newString = this.castInput(newString);

	    oldString = this.removeEmpty(this.tokenize(oldString));
	    newString = this.removeEmpty(this.tokenize(newString));

	    var newLen = newString.length,
	        oldLen = oldString.length;
	    var editLength = 1;
	    var maxEditLength = newLen + oldLen;
	    var bestPath = [{ newPos: -1, components: [] }];

	    // Seed editLength = 0, i.e. the content starts with the same values
	    var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
	    if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
	      // Identity per the equality and tokenizer
	      return done([{ value: this.join(newString), count: newString.length }]);
	    }

	    // Main worker method. checks all permutations of a given edit length for acceptance.
	    function execEditLength() {
	      for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
	        var basePath = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
	        var addPath = bestPath[diagonalPath - 1],
	            removePath = bestPath[diagonalPath + 1],
	            _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
	        if (addPath) {
	          // No one else is going to attempt to use this value, clear it
	          bestPath[diagonalPath - 1] = undefined;
	        }

	        var canAdd = addPath && addPath.newPos + 1 < newLen,
	            canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;
	        if (!canAdd && !canRemove) {
	          // If this path is a terminal then prune
	          bestPath[diagonalPath] = undefined;
	          continue;
	        }

	        // Select the diagonal that we want to branch from. We select the prior
	        // path whose position in the new string is the farthest from the origin
	        // and does not pass the bounds of the diff graph
	        if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
	          basePath = clonePath(removePath);
	          self.pushComponent(basePath.components, undefined, true);
	        } else {
	          basePath = addPath; // No need to clone, we've pulled it from the list
	          basePath.newPos++;
	          self.pushComponent(basePath.components, true, undefined);
	        }

	        _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);

	        // If we have hit the end of both strings, then we are done
	        if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
	          return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));
	        } else {
	          // Otherwise track this path as a potential candidate and continue.
	          bestPath[diagonalPath] = basePath;
	        }
	      }

	      editLength++;
	    }

	    // Performs the length of edit iteration. Is a bit fugly as this has to support the
	    // sync and async mode which is never fun. Loops over execEditLength until a value
	    // is produced.
	    if (callback) {
	      (function exec() {
	        setTimeout(function () {
	          // This should not happen, but we want to be safe.
	          /* istanbul ignore next */
	          if (editLength > maxEditLength) {
	            return callback();
	          }

	          if (!execEditLength()) {
	            exec();
	          }
	        }, 0);
	      })();
	    } else {
	      while (editLength <= maxEditLength) {
	        var ret = execEditLength();
	        if (ret) {
	          return ret;
	        }
	      }
	    }
	  },
	  /*istanbul ignore start*/ /*istanbul ignore end*/pushComponent: function pushComponent(components, added, removed) {
	    var last = components[components.length - 1];
	    if (last && last.added === added && last.removed === removed) {
	      // We need to clone here as the component clone operation is just
	      // as shallow array clone
	      components[components.length - 1] = { count: last.count + 1, added: added, removed: removed };
	    } else {
	      components.push({ count: 1, added: added, removed: removed });
	    }
	  },
	  /*istanbul ignore start*/ /*istanbul ignore end*/extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
	    var newLen = newString.length,
	        oldLen = oldString.length,
	        newPos = basePath.newPos,
	        oldPos = newPos - diagonalPath,
	        commonCount = 0;
	    while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
	      newPos++;
	      oldPos++;
	      commonCount++;
	    }

	    if (commonCount) {
	      basePath.components.push({ count: commonCount });
	    }

	    basePath.newPos = newPos;
	    return oldPos;
	  },
	  /*istanbul ignore start*/ /*istanbul ignore end*/equals: function equals(left, right) {
	    if (this.options.comparator) {
	      return this.options.comparator(left, right);
	    } else {
	      return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
	    }
	  },
	  /*istanbul ignore start*/ /*istanbul ignore end*/removeEmpty: function removeEmpty(array) {
	    var ret = [];
	    for (var i = 0; i < array.length; i++) {
	      if (array[i]) {
	        ret.push(array[i]);
	      }
	    }
	    return ret;
	  },
	  /*istanbul ignore start*/ /*istanbul ignore end*/castInput: function castInput(value) {
	    return value;
	  },
	  /*istanbul ignore start*/ /*istanbul ignore end*/tokenize: function tokenize(value) {
	    return value.split('');
	  },
	  /*istanbul ignore start*/ /*istanbul ignore end*/join: function join(chars) {
	    return chars.join('');
	  }
	};

	function buildValues(diff, components, newString, oldString, useLongestToken) {
	  var componentPos = 0,
	      componentLen = components.length,
	      newPos = 0,
	      oldPos = 0;

	  for (; componentPos < componentLen; componentPos++) {
	    var component = components[componentPos];
	    if (!component.removed) {
	      if (!component.added && useLongestToken) {
	        var value = newString.slice(newPos, newPos + component.count);
	        value = value.map(function (value, i) {
	          var oldValue = oldString[oldPos + i];
	          return oldValue.length > value.length ? oldValue : value;
	        });

	        component.value = diff.join(value);
	      } else {
	        component.value = diff.join(newString.slice(newPos, newPos + component.count));
	      }
	      newPos += component.count;

	      // Common case
	      if (!component.added) {
	        oldPos += component.count;
	      }
	    } else {
	      component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
	      oldPos += component.count;

	      // Reverse add and remove so removes are output first to match common convention
	      // The diffing algorithm is tied to add then remove output and this is the simplest
	      // route to get the desired output with minimal overhead.
	      if (componentPos && components[componentPos - 1].added) {
	        var tmp = components[componentPos - 1];
	        components[componentPos - 1] = components[componentPos];
	        components[componentPos] = tmp;
	      }
	    }
	  }

	  // Special case handle for when one terminal is ignored (i.e. whitespace).
	  // For this case we merge the terminal into the prior string and drop the change.
	  // This is only available for string mode.
	  var lastComponent = components[componentLen - 1];
	  if (componentLen > 1 && typeof lastComponent.value === 'string' && (lastComponent.added || lastComponent.removed) && diff.equals('', lastComponent.value)) {
	    components[componentLen - 2].value += lastComponent.value;
	    components.pop();
	  }

	  return components;
	}

	function clonePath(path) {
	  return { newPos: path.newPos, components: path.components.slice(0) };
	}



/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.characterDiff = undefined;
	exports. /*istanbul ignore end*/diffChars = diffChars;

	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/var characterDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/characterDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
	function diffChars(oldStr, newStr, options) {
	  return characterDiff.diff(oldStr, newStr, options);
	}



/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.wordDiff = undefined;
	exports. /*istanbul ignore end*/diffWords = diffWords;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWordsWithSpace = diffWordsWithSpace;

	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	/*istanbul ignore end*/var /*istanbul ignore start*/_params = __webpack_require__(4) /*istanbul ignore end*/;

	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/ // Based on https://en.wikipedia.org/wiki/Latin_script_in_Unicode
	//
	// Ranges and exceptions:
	// Latin-1 Supplement, 0080–00FF
	//  - U+00D7  × Multiplication sign
	//  - U+00F7  ÷ Division sign
	// Latin Extended-A, 0100–017F
	// Latin Extended-B, 0180–024F
	// IPA Extensions, 0250–02AF
	// Spacing Modifier Letters, 02B0–02FF
	//  - U+02C7  ˇ &#711;  Caron
	//  - U+02D8  ˘ &#728;  Breve
	//  - U+02D9  ˙ &#729;  Dot Above
	//  - U+02DA  ˚ &#730;  Ring Above
	//  - U+02DB  ˛ &#731;  Ogonek
	//  - U+02DC  ˜ &#732;  Small Tilde
	//  - U+02DD  ˝ &#733;  Double Acute Accent
	// Latin Extended Additional, 1E00–1EFF
	var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;

	var reWhitespace = /\S/;

	var wordDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/wordDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
	wordDiff.equals = function (left, right) {
	  if (this.options.ignoreCase) {
	    left = left.toLowerCase();
	    right = right.toLowerCase();
	  }
	  return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
	};
	wordDiff.tokenize = function (value) {
	  var tokens = value.split(/(\s+|\b)/);

	  // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
	  for (var i = 0; i < tokens.length - 1; i++) {
	    // If we have an empty string in the next field and we have only word chars before and after, merge
	    if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
	      tokens[i] += tokens[i + 2];
	      tokens.splice(i + 1, 2);
	      i--;
	    }
	  }

	  return tokens;
	};

	function diffWords(oldStr, newStr, options) {
	  options = /*istanbul ignore start*/(0, _params.generateOptions) /*istanbul ignore end*/(options, { ignoreWhitespace: true });
	  return wordDiff.diff(oldStr, newStr, options);
	}

	function diffWordsWithSpace(oldStr, newStr, options) {
	  return wordDiff.diff(oldStr, newStr, options);
	}



/***/ }),
/* 4 */
/***/ (function(module, exports) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports. /*istanbul ignore end*/generateOptions = generateOptions;
	function generateOptions(options, defaults) {
	  if (typeof options === 'function') {
	    defaults.callback = options;
	  } else if (options) {
	    for (var name in options) {
	      /* istanbul ignore else */
	      if (options.hasOwnProperty(name)) {
	        defaults[name] = options[name];
	      }
	    }
	  }
	  return defaults;
	}



/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.lineDiff = undefined;
	exports. /*istanbul ignore end*/diffLines = diffLines;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffTrimmedLines = diffTrimmedLines;

	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	/*istanbul ignore end*/var /*istanbul ignore start*/_params = __webpack_require__(4) /*istanbul ignore end*/;

	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/var lineDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/lineDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
	lineDiff.tokenize = function (value) {
	  var retLines = [],
	      linesAndNewlines = value.split(/(\n|\r\n)/);

	  // Ignore the final empty token that occurs if the string ends with a new line
	  if (!linesAndNewlines[linesAndNewlines.length - 1]) {
	    linesAndNewlines.pop();
	  }

	  // Merge the content and line separators into single tokens
	  for (var i = 0; i < linesAndNewlines.length; i++) {
	    var line = linesAndNewlines[i];

	    if (i % 2 && !this.options.newlineIsToken) {
	      retLines[retLines.length - 1] += line;
	    } else {
	      if (this.options.ignoreWhitespace) {
	        line = line.trim();
	      }
	      retLines.push(line);
	    }
	  }

	  return retLines;
	};

	function diffLines(oldStr, newStr, callback) {
	  return lineDiff.diff(oldStr, newStr, callback);
	}
	function diffTrimmedLines(oldStr, newStr, callback) {
	  var options = /*istanbul ignore start*/(0, _params.generateOptions) /*istanbul ignore end*/(callback, { ignoreWhitespace: true });
	  return lineDiff.diff(oldStr, newStr, options);
	}



/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.sentenceDiff = undefined;
	exports. /*istanbul ignore end*/diffSentences = diffSentences;

	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/var sentenceDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/sentenceDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
	sentenceDiff.tokenize = function (value) {
	  return value.split(/(\S.+?[.!?])(?=\s+|$)/);
	};

	function diffSentences(oldStr, newStr, callback) {
	  return sentenceDiff.diff(oldStr, newStr, callback);
	}



/***/ }),
/* 7 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.cssDiff = undefined;
	exports. /*istanbul ignore end*/diffCss = diffCss;

	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/var cssDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/cssDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
	cssDiff.tokenize = function (value) {
	  return value.split(/([{}:;,]|\s+)/);
	};

	function diffCss(oldStr, newStr, callback) {
	  return cssDiff.diff(oldStr, newStr, callback);
	}



/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.jsonDiff = undefined;

	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

	exports. /*istanbul ignore end*/diffJson = diffJson;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/canonicalize = canonicalize;

	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	/*istanbul ignore end*/var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;

	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/var objectPrototypeToString = Object.prototype.toString;

	var jsonDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/jsonDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
	// Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
	// dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
	jsonDiff.useLongestToken = true;

	jsonDiff.tokenize = /*istanbul ignore start*/_line.lineDiff /*istanbul ignore end*/.tokenize;
	jsonDiff.castInput = function (value) {
	  /*istanbul ignore start*/var /*istanbul ignore end*/undefinedReplacement = this.options.undefinedReplacement;


	  return typeof value === 'string' ? value : JSON.stringify(canonicalize(value), function (k, v) {
	    if (typeof v === 'undefined') {
	      return undefinedReplacement;
	    }

	    return v;
	  }, '  ');
	};
	jsonDiff.equals = function (left, right) {
	  return (/*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/.prototype.equals.call(jsonDiff, left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'))
	  );
	};

	function diffJson(oldObj, newObj, options) {
	  return jsonDiff.diff(oldObj, newObj, options);
	}

	// This function handles the presence of circular references by bailing out when encountering an
	// object that is already on the "stack" of items being processed.
	function canonicalize(obj, stack, replacementStack) {
	  stack = stack || [];
	  replacementStack = replacementStack || [];

	  var i = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;

	  for (i = 0; i < stack.length; i += 1) {
	    if (stack[i] === obj) {
	      return replacementStack[i];
	    }
	  }

	  var canonicalizedObj = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;

	  if ('[object Array]' === objectPrototypeToString.call(obj)) {
	    stack.push(obj);
	    canonicalizedObj = new Array(obj.length);
	    replacementStack.push(canonicalizedObj);
	    for (i = 0; i < obj.length; i += 1) {
	      canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack);
	    }
	    stack.pop();
	    replacementStack.pop();
	    return canonicalizedObj;
	  }

	  if (obj && obj.toJSON) {
	    obj = obj.toJSON();
	  }

	  if ( /*istanbul ignore start*/(typeof /*istanbul ignore end*/obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && obj !== null) {
	    stack.push(obj);
	    canonicalizedObj = {};
	    replacementStack.push(canonicalizedObj);
	    var sortedKeys = [],
	        key = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
	    for (key in obj) {
	      /* istanbul ignore else */
	      if (obj.hasOwnProperty(key)) {
	        sortedKeys.push(key);
	      }
	    }
	    sortedKeys.sort();
	    for (i = 0; i < sortedKeys.length; i += 1) {
	      key = sortedKeys[i];
	      canonicalizedObj[key] = canonicalize(obj[key], stack, replacementStack);
	    }
	    stack.pop();
	    replacementStack.pop();
	  } else {
	    canonicalizedObj = obj;
	  }
	  return canonicalizedObj;
	}



/***/ }),
/* 9 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports.arrayDiff = undefined;
	exports. /*istanbul ignore end*/diffArrays = diffArrays;

	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/var arrayDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/arrayDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
	arrayDiff.tokenize = arrayDiff.join = function (value) {
	  return value.slice();
	};
	arrayDiff.removeEmpty = function (value) {
	  return value;
	};

	function diffArrays(oldArr, newArr, callback) {
	  return arrayDiff.diff(oldArr, newArr, callback);
	}



/***/ }),
/* 10 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports. /*istanbul ignore end*/applyPatch = applyPatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatches = applyPatches;

	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_distanceIterator = __webpack_require__(12) /*istanbul ignore end*/;

	/*istanbul ignore start*/var _distanceIterator2 = _interopRequireDefault(_distanceIterator);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

	/*istanbul ignore end*/function applyPatch(source, uniDiff) {
	  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

	  if (typeof uniDiff === 'string') {
	    uniDiff = /*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(uniDiff);
	  }

	  if (Array.isArray(uniDiff)) {
	    if (uniDiff.length > 1) {
	      throw new Error('applyPatch only works with a single input.');
	    }

	    uniDiff = uniDiff[0];
	  }

	  // Apply the diff to the input
	  var lines = source.split(/\r\n|[\n\v\f\r\x85]/),
	      delimiters = source.match(/\r\n|[\n\v\f\r\x85]/g) || [],
	      hunks = uniDiff.hunks,
	      compareLine = options.compareLine || function (lineNumber, line, operation, patchContent) /*istanbul ignore start*/{
	    return (/*istanbul ignore end*/line === patchContent
	    );
	  },
	      errorCount = 0,
	      fuzzFactor = options.fuzzFactor || 0,
	      minLine = 0,
	      offset = 0,
	      removeEOFNL = /*istanbul ignore start*/void 0 /*istanbul ignore end*/,
	      addEOFNL = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;

	  /**
	   * Checks if the hunk exactly fits on the provided location
	   */
	  function hunkFits(hunk, toPos) {
	    for (var j = 0; j < hunk.lines.length; j++) {
	      var line = hunk.lines[j],
	          operation = line[0],
	          content = line.substr(1);

	      if (operation === ' ' || operation === '-') {
	        // Context sanity check
	        if (!compareLine(toPos + 1, lines[toPos], operation, content)) {
	          errorCount++;

	          if (errorCount > fuzzFactor) {
	            return false;
	          }
	        }
	        toPos++;
	      }
	    }

	    return true;
	  }

	  // Search best fit offsets for each hunk based on the previous ones
	  for (var i = 0; i < hunks.length; i++) {
	    var hunk = hunks[i],
	        maxLine = lines.length - hunk.oldLines,
	        localOffset = 0,
	        toPos = offset + hunk.oldStart - 1;

	    var iterator = /*istanbul ignore start*/(0, _distanceIterator2['default']) /*istanbul ignore end*/(toPos, minLine, maxLine);

	    for (; localOffset !== undefined; localOffset = iterator()) {
	      if (hunkFits(hunk, toPos + localOffset)) {
	        hunk.offset = offset += localOffset;
	        break;
	      }
	    }

	    if (localOffset === undefined) {
	      return false;
	    }

	    // Set lower text limit to end of the current hunk, so next ones don't try
	    // to fit over already patched text
	    minLine = hunk.offset + hunk.oldStart + hunk.oldLines;
	  }

	  // Apply patch hunks
	  var diffOffset = 0;
	  for (var _i = 0; _i < hunks.length; _i++) {
	    var _hunk = hunks[_i],
	        _toPos = _hunk.oldStart + _hunk.offset + diffOffset - 1;
	    diffOffset += _hunk.newLines - _hunk.oldLines;

	    if (_toPos < 0) {
	      // Creating a new file
	      _toPos = 0;
	    }

	    for (var j = 0; j < _hunk.lines.length; j++) {
	      var line = _hunk.lines[j],
	          operation = line[0],
	          content = line.substr(1),
	          delimiter = _hunk.linedelimiters[j];

	      if (operation === ' ') {
	        _toPos++;
	      } else if (operation === '-') {
	        lines.splice(_toPos, 1);
	        delimiters.splice(_toPos, 1);
	        /* istanbul ignore else */
	      } else if (operation === '+') {
	        lines.splice(_toPos, 0, content);
	        delimiters.splice(_toPos, 0, delimiter);
	        _toPos++;
	      } else if (operation === '\\') {
	        var previousOperation = _hunk.lines[j - 1] ? _hunk.lines[j - 1][0] : null;
	        if (previousOperation === '+') {
	          removeEOFNL = true;
	        } else if (previousOperation === '-') {
	          addEOFNL = true;
	        }
	      }
	    }
	  }

	  // Handle EOFNL insertion/removal
	  if (removeEOFNL) {
	    while (!lines[lines.length - 1]) {
	      lines.pop();
	      delimiters.pop();
	    }
	  } else if (addEOFNL) {
	    lines.push('');
	    delimiters.push('\n');
	  }
	  for (var _k = 0; _k < lines.length - 1; _k++) {
	    lines[_k] = lines[_k] + delimiters[_k];
	  }
	  return lines.join('');
	}

	// Wrapper that supports multiple file patches via callbacks.
	function applyPatches(uniDiff, options) {
	  if (typeof uniDiff === 'string') {
	    uniDiff = /*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(uniDiff);
	  }

	  var currentIndex = 0;
	  function processIndex() {
	    var index = uniDiff[currentIndex++];
	    if (!index) {
	      return options.complete();
	    }

	    options.loadFile(index, function (err, data) {
	      if (err) {
	        return options.complete(err);
	      }

	      var updatedContent = applyPatch(data, index, options);
	      options.patched(index, updatedContent, function (err) {
	        if (err) {
	          return options.complete(err);
	        }

	        processIndex();
	      });
	    });
	  }
	  processIndex();
	}



/***/ }),
/* 11 */
/***/ (function(module, exports) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports. /*istanbul ignore end*/parsePatch = parsePatch;
	function parsePatch(uniDiff) {
	  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

	  var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
	      delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
	      list = [],
	      i = 0;

	  function parseIndex() {
	    var index = {};
	    list.push(index);

	    // Parse diff metadata
	    while (i < diffstr.length) {
	      var line = diffstr[i];

	      // File header found, end parsing diff metadata
	      if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
	        break;
	      }

	      // Diff index
	      var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
	      if (header) {
	        index.index = header[1];
	      }

	      i++;
	    }

	    // Parse file headers if they are defined. Unified diff requires them, but
	    // there's no technical issues to have an isolated hunk without file header
	    parseFileHeader(index);
	    parseFileHeader(index);

	    // Parse hunks
	    index.hunks = [];

	    while (i < diffstr.length) {
	      var _line = diffstr[i];

	      if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
	        break;
	      } else if (/^@@/.test(_line)) {
	        index.hunks.push(parseHunk());
	      } else if (_line && options.strict) {
	        // Ignore unexpected content unless in strict mode
	        throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
	      } else {
	        i++;
	      }
	    }
	  }

	  // Parses the --- and +++ headers, if none are found, no lines
	  // are consumed.
	  function parseFileHeader(index) {
	    var headerPattern = /^(---|\+\+\+)\s+([\S ]*)(?:\t(.*?)\s*)?$/;
	    var fileHeader = headerPattern.exec(diffstr[i]);
	    if (fileHeader) {
	      var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
	      var fileName = fileHeader[2].replace(/\\\\/g, '\\');
	      if (/^".*"$/.test(fileName)) {
	        fileName = fileName.substr(1, fileName.length - 2);
	      }
	      index[keyPrefix + 'FileName'] = fileName;
	      index[keyPrefix + 'Header'] = fileHeader[3];

	      i++;
	    }
	  }

	  // Parses a hunk
	  // This assumes that we are at the start of a hunk.
	  function parseHunk() {
	    var chunkHeaderIndex = i,
	        chunkHeaderLine = diffstr[i++],
	        chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);

	    var hunk = {
	      oldStart: +chunkHeader[1],
	      oldLines: +chunkHeader[2] || 1,
	      newStart: +chunkHeader[3],
	      newLines: +chunkHeader[4] || 1,
	      lines: [],
	      linedelimiters: []
	    };

	    var addCount = 0,
	        removeCount = 0;
	    for (; i < diffstr.length; i++) {
	      // Lines starting with '---' could be mistaken for the "remove line" operation
	      // But they could be the header for the next file. Therefore prune such cases out.
	      if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
	        break;
	      }
	      var operation = diffstr[i][0];

	      if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
	        hunk.lines.push(diffstr[i]);
	        hunk.linedelimiters.push(delimiters[i] || '\n');

	        if (operation === '+') {
	          addCount++;
	        } else if (operation === '-') {
	          removeCount++;
	        } else if (operation === ' ') {
	          addCount++;
	          removeCount++;
	        }
	      } else {
	        break;
	      }
	    }

	    // Handle the empty block count case
	    if (!addCount && hunk.newLines === 1) {
	      hunk.newLines = 0;
	    }
	    if (!removeCount && hunk.oldLines === 1) {
	      hunk.oldLines = 0;
	    }

	    // Perform optional sanity checking
	    if (options.strict) {
	      if (addCount !== hunk.newLines) {
	        throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
	      }
	      if (removeCount !== hunk.oldLines) {
	        throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
	      }
	    }

	    return hunk;
	  }

	  while (i < diffstr.length) {
	    parseIndex();
	  }

	  return list;
	}



/***/ }),
/* 12 */
/***/ (function(module, exports) {

	/*istanbul ignore start*/"use strict";

	exports.__esModule = true;

	exports["default"] = /*istanbul ignore end*/function (start, minLine, maxLine) {
	  var wantForward = true,
	      backwardExhausted = false,
	      forwardExhausted = false,
	      localOffset = 1;

	  return function iterator() {
	    if (wantForward && !forwardExhausted) {
	      if (backwardExhausted) {
	        localOffset++;
	      } else {
	        wantForward = false;
	      }

	      // Check if trying to fit beyond text length, and if not, check it fits
	      // after offset location (or desired location on first iteration)
	      if (start + localOffset <= maxLine) {
	        return localOffset;
	      }

	      forwardExhausted = true;
	    }

	    if (!backwardExhausted) {
	      if (!forwardExhausted) {
	        wantForward = true;
	      }

	      // Check if trying to fit before text beginning, and if not, check it fits
	      // before offset location
	      if (minLine <= start - localOffset) {
	        return -localOffset++;
	      }

	      backwardExhausted = true;
	      return iterator();
	    }

	    // We tried to fit hunk before text beginning and beyond text length, then
	    // hunk can't fit on the text. Return undefined
	  };
	};



/***/ }),
/* 13 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports. /*istanbul ignore end*/calcLineCount = calcLineCount;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/merge = merge;

	var /*istanbul ignore start*/_create = __webpack_require__(14) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;

	var /*istanbul ignore start*/_array = __webpack_require__(15) /*istanbul ignore end*/;

	/*istanbul ignore start*/function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

	/*istanbul ignore end*/function calcLineCount(hunk) {
	  /*istanbul ignore start*/var _calcOldNewLineCount = /*istanbul ignore end*/calcOldNewLineCount(hunk.lines),
	      oldLines = _calcOldNewLineCount.oldLines,
	      newLines = _calcOldNewLineCount.newLines;

	  if (oldLines !== undefined) {
	    hunk.oldLines = oldLines;
	  } else {
	    delete hunk.oldLines;
	  }

	  if (newLines !== undefined) {
	    hunk.newLines = newLines;
	  } else {
	    delete hunk.newLines;
	  }
	}

	function merge(mine, theirs, base) {
	  mine = loadPatch(mine, base);
	  theirs = loadPatch(theirs, base);

	  var ret = {};

	  // For index we just let it pass through as it doesn't have any necessary meaning.
	  // Leaving sanity checks on this to the API consumer that may know more about the
	  // meaning in their own context.
	  if (mine.index || theirs.index) {
	    ret.index = mine.index || theirs.index;
	  }

	  if (mine.newFileName || theirs.newFileName) {
	    if (!fileNameChanged(mine)) {
	      // No header or no change in ours, use theirs (and ours if theirs does not exist)
	      ret.oldFileName = theirs.oldFileName || mine.oldFileName;
	      ret.newFileName = theirs.newFileName || mine.newFileName;
	      ret.oldHeader = theirs.oldHeader || mine.oldHeader;
	      ret.newHeader = theirs.newHeader || mine.newHeader;
	    } else if (!fileNameChanged(theirs)) {
	      // No header or no change in theirs, use ours
	      ret.oldFileName = mine.oldFileName;
	      ret.newFileName = mine.newFileName;
	      ret.oldHeader = mine.oldHeader;
	      ret.newHeader = mine.newHeader;
	    } else {
	      // Both changed... figure it out
	      ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);
	      ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);
	      ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);
	      ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);
	    }
	  }

	  ret.hunks = [];

	  var mineIndex = 0,
	      theirsIndex = 0,
	      mineOffset = 0,
	      theirsOffset = 0;

	  while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {
	    var mineCurrent = mine.hunks[mineIndex] || { oldStart: Infinity },
	        theirsCurrent = theirs.hunks[theirsIndex] || { oldStart: Infinity };

	    if (hunkBefore(mineCurrent, theirsCurrent)) {
	      // This patch does not overlap with any of the others, yay.
	      ret.hunks.push(cloneHunk(mineCurrent, mineOffset));
	      mineIndex++;
	      theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;
	    } else if (hunkBefore(theirsCurrent, mineCurrent)) {
	      // This patch does not overlap with any of the others, yay.
	      ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));
	      theirsIndex++;
	      mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;
	    } else {
	      // Overlap, merge as best we can
	      var mergedHunk = {
	        oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),
	        oldLines: 0,
	        newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),
	        newLines: 0,
	        lines: []
	      };
	      mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);
	      theirsIndex++;
	      mineIndex++;

	      ret.hunks.push(mergedHunk);
	    }
	  }

	  return ret;
	}

	function loadPatch(param, base) {
	  if (typeof param === 'string') {
	    if (/^@@/m.test(param) || /^Index:/m.test(param)) {
	      return (/*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(param)[0]
	      );
	    }

	    if (!base) {
	      throw new Error('Must provide a base reference or pass in a patch');
	    }
	    return (/*istanbul ignore start*/(0, _create.structuredPatch) /*istanbul ignore end*/(undefined, undefined, base, param)
	    );
	  }

	  return param;
	}

	function fileNameChanged(patch) {
	  return patch.newFileName && patch.newFileName !== patch.oldFileName;
	}

	function selectField(index, mine, theirs) {
	  if (mine === theirs) {
	    return mine;
	  } else {
	    index.conflict = true;
	    return { mine: mine, theirs: theirs };
	  }
	}

	function hunkBefore(test, check) {
	  return test.oldStart < check.oldStart && test.oldStart + test.oldLines < check.oldStart;
	}

	function cloneHunk(hunk, offset) {
	  return {
	    oldStart: hunk.oldStart, oldLines: hunk.oldLines,
	    newStart: hunk.newStart + offset, newLines: hunk.newLines,
	    lines: hunk.lines
	  };
	}

	function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {
	  // This will generally result in a conflicted hunk, but there are cases where the context
	  // is the only overlap where we can successfully merge the content here.
	  var mine = { offset: mineOffset, lines: mineLines, index: 0 },
	      their = { offset: theirOffset, lines: theirLines, index: 0 };

	  // Handle any leading content
	  insertLeading(hunk, mine, their);
	  insertLeading(hunk, their, mine);

	  // Now in the overlap content. Scan through and select the best changes from each.
	  while (mine.index < mine.lines.length && their.index < their.lines.length) {
	    var mineCurrent = mine.lines[mine.index],
	        theirCurrent = their.lines[their.index];

	    if ((mineCurrent[0] === '-' || mineCurrent[0] === '+') && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {
	      // Both modified ...
	      mutualChange(hunk, mine, their);
	    } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {
	      /*istanbul ignore start*/var _hunk$lines;

	      /*istanbul ignore end*/ // Mine inserted
	      /*istanbul ignore start*/(_hunk$lines = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/collectChange(mine)));
	    } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {
	      /*istanbul ignore start*/var _hunk$lines2;

	      /*istanbul ignore end*/ // Theirs inserted
	      /*istanbul ignore start*/(_hunk$lines2 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines2 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/collectChange(their)));
	    } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {
	      // Mine removed or edited
	      removal(hunk, mine, their);
	    } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {
	      // Their removed or edited
	      removal(hunk, their, mine, true);
	    } else if (mineCurrent === theirCurrent) {
	      // Context identity
	      hunk.lines.push(mineCurrent);
	      mine.index++;
	      their.index++;
	    } else {
	      // Context mismatch
	      conflict(hunk, collectChange(mine), collectChange(their));
	    }
	  }

	  // Now push anything that may be remaining
	  insertTrailing(hunk, mine);
	  insertTrailing(hunk, their);

	  calcLineCount(hunk);
	}

	function mutualChange(hunk, mine, their) {
	  var myChanges = collectChange(mine),
	      theirChanges = collectChange(their);

	  if (allRemoves(myChanges) && allRemoves(theirChanges)) {
	    // Special case for remove changes that are supersets of one another
	    if ( /*istanbul ignore start*/(0, _array.arrayStartsWith) /*istanbul ignore end*/(myChanges, theirChanges) && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {
	      /*istanbul ignore start*/var _hunk$lines3;

	      /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines3 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines3 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/myChanges));
	      return;
	    } else if ( /*istanbul ignore start*/(0, _array.arrayStartsWith) /*istanbul ignore end*/(theirChanges, myChanges) && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {
	      /*istanbul ignore start*/var _hunk$lines4;

	      /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines4 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines4 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/theirChanges));
	      return;
	    }
	  } else if ( /*istanbul ignore start*/(0, _array.arrayEqual) /*istanbul ignore end*/(myChanges, theirChanges)) {
	    /*istanbul ignore start*/var _hunk$lines5;

	    /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines5 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines5 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/myChanges));
	    return;
	  }

	  conflict(hunk, myChanges, theirChanges);
	}

	function removal(hunk, mine, their, swap) {
	  var myChanges = collectChange(mine),
	      theirChanges = collectContext(their, myChanges);
	  if (theirChanges.merged) {
	    /*istanbul ignore start*/var _hunk$lines6;

	    /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines6 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines6 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/theirChanges.merged));
	  } else {
	    conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);
	  }
	}

	function conflict(hunk, mine, their) {
	  hunk.conflict = true;
	  hunk.lines.push({
	    conflict: true,
	    mine: mine,
	    theirs: their
	  });
	}

	function insertLeading(hunk, insert, their) {
	  while (insert.offset < their.offset && insert.index < insert.lines.length) {
	    var line = insert.lines[insert.index++];
	    hunk.lines.push(line);
	    insert.offset++;
	  }
	}
	function insertTrailing(hunk, insert) {
	  while (insert.index < insert.lines.length) {
	    var line = insert.lines[insert.index++];
	    hunk.lines.push(line);
	  }
	}

	function collectChange(state) {
	  var ret = [],
	      operation = state.lines[state.index][0];
	  while (state.index < state.lines.length) {
	    var line = state.lines[state.index];

	    // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.
	    if (operation === '-' && line[0] === '+') {
	      operation = '+';
	    }

	    if (operation === line[0]) {
	      ret.push(line);
	      state.index++;
	    } else {
	      break;
	    }
	  }

	  return ret;
	}
	function collectContext(state, matchChanges) {
	  var changes = [],
	      merged = [],
	      matchIndex = 0,
	      contextChanges = false,
	      conflicted = false;
	  while (matchIndex < matchChanges.length && state.index < state.lines.length) {
	    var change = state.lines[state.index],
	        match = matchChanges[matchIndex];

	    // Once we've hit our add, then we are done
	    if (match[0] === '+') {
	      break;
	    }

	    contextChanges = contextChanges || change[0] !== ' ';

	    merged.push(match);
	    matchIndex++;

	    // Consume any additions in the other block as a conflict to attempt
	    // to pull in the remaining context after this
	    if (change[0] === '+') {
	      conflicted = true;

	      while (change[0] === '+') {
	        changes.push(change);
	        change = state.lines[++state.index];
	      }
	    }

	    if (match.substr(1) === change.substr(1)) {
	      changes.push(change);
	      state.index++;
	    } else {
	      conflicted = true;
	    }
	  }

	  if ((matchChanges[matchIndex] || '')[0] === '+' && contextChanges) {
	    conflicted = true;
	  }

	  if (conflicted) {
	    return changes;
	  }

	  while (matchIndex < matchChanges.length) {
	    merged.push(matchChanges[matchIndex++]);
	  }

	  return {
	    merged: merged,
	    changes: changes
	  };
	}

	function allRemoves(changes) {
	  return changes.reduce(function (prev, change) {
	    return prev && change[0] === '-';
	  }, true);
	}
	function skipRemoveSuperset(state, removeChanges, delta) {
	  for (var i = 0; i < delta; i++) {
	    var changeContent = removeChanges[removeChanges.length - delta + i].substr(1);
	    if (state.lines[state.index + i] !== ' ' + changeContent) {
	      return false;
	    }
	  }

	  state.index += delta;
	  return true;
	}

	function calcOldNewLineCount(lines) {
	  var oldLines = 0;
	  var newLines = 0;

	  lines.forEach(function (line) {
	    if (typeof line !== 'string') {
	      var myCount = calcOldNewLineCount(line.mine);
	      var theirCount = calcOldNewLineCount(line.theirs);

	      if (oldLines !== undefined) {
	        if (myCount.oldLines === theirCount.oldLines) {
	          oldLines += myCount.oldLines;
	        } else {
	          oldLines = undefined;
	        }
	      }

	      if (newLines !== undefined) {
	        if (myCount.newLines === theirCount.newLines) {
	          newLines += myCount.newLines;
	        } else {
	          newLines = undefined;
	        }
	      }
	    } else {
	      if (newLines !== undefined && (line[0] === '+' || line[0] === ' ')) {
	        newLines++;
	      }
	      if (oldLines !== undefined && (line[0] === '-' || line[0] === ' ')) {
	        oldLines++;
	      }
	    }
	  });

	  return { oldLines: oldLines, newLines: newLines };
	}



/***/ }),
/* 14 */
/***/ (function(module, exports, __webpack_require__) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports. /*istanbul ignore end*/structuredPatch = structuredPatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/createTwoFilesPatch = createTwoFilesPatch;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/createPatch = createPatch;

	var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;

	/*istanbul ignore start*/function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

	/*istanbul ignore end*/function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
	  if (!options) {
	    options = {};
	  }
	  if (typeof options.context === 'undefined') {
	    options.context = 4;
	  }

	  var diff = /*istanbul ignore start*/(0, _line.diffLines) /*istanbul ignore end*/(oldStr, newStr, options);
	  diff.push({ value: '', lines: [] }); // Append an empty value to make cleanup easier

	  function contextLines(lines) {
	    return lines.map(function (entry) {
	      return ' ' + entry;
	    });
	  }

	  var hunks = [];
	  var oldRangeStart = 0,
	      newRangeStart = 0,
	      curRange = [],
	      oldLine = 1,
	      newLine = 1;

	  /*istanbul ignore start*/var _loop = function _loop( /*istanbul ignore end*/i) {
	    var current = diff[i],
	        lines = current.lines || current.value.replace(/\n$/, '').split('\n');
	    current.lines = lines;

	    if (current.added || current.removed) {
	      /*istanbul ignore start*/var _curRange;

	      /*istanbul ignore end*/ // If we have previous context, start with that
	      if (!oldRangeStart) {
	        var prev = diff[i - 1];
	        oldRangeStart = oldLine;
	        newRangeStart = newLine;

	        if (prev) {
	          curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
	          oldRangeStart -= curRange.length;
	          newRangeStart -= curRange.length;
	        }
	      }

	      // Output our changes
	      /*istanbul ignore start*/(_curRange = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/lines.map(function (entry) {
	        return (current.added ? '+' : '-') + entry;
	      })));

	      // Track the updated file position
	      if (current.added) {
	        newLine += lines.length;
	      } else {
	        oldLine += lines.length;
	      }
	    } else {
	      // Identical context lines. Track line changes
	      if (oldRangeStart) {
	        // Close out any changes that have been output (or join overlapping)
	        if (lines.length <= options.context * 2 && i < diff.length - 2) {
	          /*istanbul ignore start*/var _curRange2;

	          /*istanbul ignore end*/ // Overlapping
	          /*istanbul ignore start*/(_curRange2 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange2 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines)));
	        } else {
	          /*istanbul ignore start*/var _curRange3;

	          /*istanbul ignore end*/ // end the range and output
	          var contextSize = Math.min(lines.length, options.context);
	          /*istanbul ignore start*/(_curRange3 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange3 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines.slice(0, contextSize))));

	          var hunk = {
	            oldStart: oldRangeStart,
	            oldLines: oldLine - oldRangeStart + contextSize,
	            newStart: newRangeStart,
	            newLines: newLine - newRangeStart + contextSize,
	            lines: curRange
	          };
	          if (i >= diff.length - 2 && lines.length <= options.context) {
	            // EOF is inside this hunk
	            var oldEOFNewline = /\n$/.test(oldStr);
	            var newEOFNewline = /\n$/.test(newStr);
	            if (lines.length == 0 && !oldEOFNewline) {
	              // special case: old has no eol and no trailing context; no-nl can end up before adds
	              curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
	            } else if (!oldEOFNewline || !newEOFNewline) {
	              curRange.push('\\ No newline at end of file');
	            }
	          }
	          hunks.push(hunk);

	          oldRangeStart = 0;
	          newRangeStart = 0;
	          curRange = [];
	        }
	      }
	      oldLine += lines.length;
	      newLine += lines.length;
	    }
	  };

	  for (var i = 0; i < diff.length; i++) {
	    /*istanbul ignore start*/_loop( /*istanbul ignore end*/i);
	  }

	  return {
	    oldFileName: oldFileName, newFileName: newFileName,
	    oldHeader: oldHeader, newHeader: newHeader,
	    hunks: hunks
	  };
	}

	function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
	  var diff = structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options);

	  var ret = [];
	  if (oldFileName == newFileName) {
	    ret.push('Index: ' + oldFileName);
	  }
	  ret.push('===================================================================');
	  ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
	  ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));

	  for (var i = 0; i < diff.hunks.length; i++) {
	    var hunk = diff.hunks[i];
	    ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
	    ret.push.apply(ret, hunk.lines);
	  }

	  return ret.join('\n') + '\n';
	}

	function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
	  return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
	}



/***/ }),
/* 15 */
/***/ (function(module, exports) {

	/*istanbul ignore start*/"use strict";

	exports.__esModule = true;
	exports. /*istanbul ignore end*/arrayEqual = arrayEqual;
	/*istanbul ignore start*/exports. /*istanbul ignore end*/arrayStartsWith = arrayStartsWith;
	function arrayEqual(a, b) {
	  if (a.length !== b.length) {
	    return false;
	  }

	  return arrayStartsWith(a, b);
	}

	function arrayStartsWith(array, start) {
	  if (start.length > array.length) {
	    return false;
	  }

	  for (var i = 0; i < start.length; i++) {
	    if (start[i] !== array[i]) {
	      return false;
	    }
	  }

	  return true;
	}



/***/ }),
/* 16 */
/***/ (function(module, exports) {

	/*istanbul ignore start*/"use strict";

	exports.__esModule = true;
	exports. /*istanbul ignore end*/convertChangesToDMP = convertChangesToDMP;
	// See: http://code.google.com/p/google-diff-match-patch/wiki/API
	function convertChangesToDMP(changes) {
	  var ret = [],
	      change = /*istanbul ignore start*/void 0 /*istanbul ignore end*/,
	      operation = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
	  for (var i = 0; i < changes.length; i++) {
	    change = changes[i];
	    if (change.added) {
	      operation = 1;
	    } else if (change.removed) {
	      operation = -1;
	    } else {
	      operation = 0;
	    }

	    ret.push([operation, change.value]);
	  }
	  return ret;
	}



/***/ }),
/* 17 */
/***/ (function(module, exports) {

	/*istanbul ignore start*/'use strict';

	exports.__esModule = true;
	exports. /*istanbul ignore end*/convertChangesToXML = convertChangesToXML;
	function convertChangesToXML(changes) {
	  var ret = [];
	  for (var i = 0; i < changes.length; i++) {
	    var change = changes[i];
	    if (change.added) {
	      ret.push('<ins>');
	    } else if (change.removed) {
	      ret.push('<del>');
	    }

	    ret.push(escapeHTML(change.value));

	    if (change.added) {
	      ret.push('</ins>');
	    } else if (change.removed) {
	      ret.push('</del>');
	    }
	  }
	  return ret.join('');
	}

	function escapeHTML(s) {
	  var n = s;
	  n = n.replace(/&/g, '&amp;');
	  n = n.replace(/</g, '&lt;');
	  n = n.replace(/>/g, '&gt;');
	  n = n.replace(/"/g, '&quot;');

	  return n;
	}



/***/ })
/******/ ])
});
;
},{}],170:[function(require,module,exports){
'use strict';

var d           = require('d')
  , pad         = require('es5-ext/number/#/pad')
  , date        = require('es5-ext/date/valid-date')
  , daysInMonth = require('es5-ext/date/#/days-in-month')
  , copy        = require('es5-ext/date/#/copy')
  , dfloor      = require('es5-ext/date/#/floor-day')
  , mfloor      = require('es5-ext/date/#/floor-month')
  , yfloor      = require('es5-ext/date/#/floor-year')
  , toInteger   = require('es5-ext/number/to-integer')
  , toPosInt    = require('es5-ext/number/to-pos-integer')

  , abs = Math.abs

  , format, valueOf, getYear, Duration, getCalcData;

format = require('es5-ext/string/format-method')({
	y: function () { return String(abs(this.year)); },
	m: function () { return pad.call(abs(this.month), 2); },
	d: function () { return pad.call(abs(this.day), 2); },
	H: function () { return pad.call(abs(this.hour), 2); },
	M: function () { return pad.call(abs(this.minute), 2); },
	S: function () { return pad.call(abs(this.second), 2); },
	L: function () { return pad.call(abs(this.millisecond), 3); },

	ms: function () { return String(abs(this.months)); },
	ds: function () { return String(abs(this.days)); },
	Hs: function () { return String(abs(this.hours)); },
	Ms: function () { return String(abs(this.minutes)); },
	Ss: function () { return String(abs(this.seconds)); },
	Ls: function () { return String(abs(this.milliseconds)); },

	sign: function () { return (this.to < this.from) ? '-' : ''; }
});

getCalcData = function (duration) {
	return (duration.to < duration.from) ?
			{ to: duration.from, from: duration.to, sign: -1 } :
			{ to: duration.to, from: duration.from, sign: 1 };
};

Duration = module.exports = function (from, to) {
	// Make it both constructor and factory
	if (!(this instanceof Duration)) return new Duration(from, to);

	this.from = date(from);
	this.to = (to == null) ? new Date() : date(to);
};

Duration.prototype = Object.create(Object.prototype, {
	valueOf: d(valueOf = function () { return this.to - this.from; }),
	millisecond: d.gs(function () { return this.milliseconds % 1000; }),
	second: d.gs(function () { return this.seconds % 60; }),
	minute: d.gs(function () { return this.minutes % 60; }),
	hour: d.gs(function () { return this.hours % 24; }),
	day: d.gs(function () {
		var data = getCalcData(this)
		  , x = copy.call(data.to);
		x.setMonth(x.getMonth() - 1);
		x = daysInMonth.call(x);
		return data.sign * ((x - data.from.getDate() + data.to.getDate()) % x -
			((data.from - dfloor.call(copy.call(data.from))) >
				(data.to - dfloor.call(copy.call(data.to)))));
	}),
	month: d.gs(function () {
		var data = getCalcData(this);
		return data.sign * ((12 - data.from.getMonth() + data.to.getMonth()) % 12 -
			((data.from - mfloor.call(copy.call(data.from))) >
				(data.to - mfloor.call(copy.call(data.to)))));
	}),
	year: d.gs(getYear = function () {
		var data = getCalcData(this);
		return data.sign * (data.to.getFullYear() - data.from.getFullYear() -
			((data.from - yfloor.call(copy.call(data.from))) >
				(data.to - yfloor.call(copy.call(data.to)))));
	}),

	milliseconds: d.gs(valueOf, null),
	seconds: d.gs(function () { return toInteger(this.valueOf() / 1000); }),
	minutes: d.gs(function () {
		return toInteger(this.valueOf() / (1000 * 60));
	}),
	hours: d.gs(function () {
		return toInteger(this.valueOf() / (1000 * 60 * 60));
	}),
	days: d.gs(function () {
		return toInteger(this.valueOf() / (1000 * 60 * 60 * 24));
	}),
	months: d.gs(function () {
		var data = getCalcData(this);
		return data.sign * ((data.to.getFullYear() - data.from.getFullYear()) * 12 +
			data.to.getMonth() - data.from.getMonth() -
			((data.from - mfloor.call(copy.call(data.from))) >
				(data.to - mfloor.call(copy.call(data.to)))));
	}),
	years: d.gs(getYear),

	toString: d(function (pattern/*, threshold*/) {
		var s, threshold, last;
		if (pattern == null) pattern = 0;
		if (isNaN(pattern)) return format.call(this, pattern);
		pattern = Number(pattern);
		threshold = toPosInt(arguments[1]);
		s = "";
		if (pattern === 1) {
			if (threshold-- <= 0) s += abs(last = this.millisecond) + "ms";
			if (this.seconds || (threshold >= 0)) {
				if (threshold-- <= 0) {
					s = abs(last = this.second) + "s" + (s ? " " : "") + s;
				}
				if (this.minutes || (threshold >= 0)) {
					if (threshold-- <= 0) {
						s = abs(last = this.minute) + "m" + (s ? " " : "") + s;
					}
					if (this.hours || (threshold >= 0)) {
						if (threshold-- <= 0) {
							s = abs(last = this.hour) + "h" + (s ? " " : "") + s;
						}
						if (this.days || (threshold >= 0)) {
							if (threshold-- <= 0) {
								s = abs(last = this.day) + "d" + (s ? " " : "") + s;
							}
							if (this.months || (threshold >= 0)) {
								if (threshold-- <= 0) {
									s = abs(last = this.month) + "m" + (s ? " " : "") + s;
								}
								if (this.years || (threshold >= 0)) {
									s = abs(last = this.year) + "y" +
										(s ? " " : "") + s;
								}
							}
						}
					}
				}
			}
		} else {
			if (threshold-- <= 0) {
				s += "." +  pad.call(abs(last = this.millisecond), 3);
			}
			if (this.seconds || (threshold >= 0)) {
				if (threshold-- <= 0) {
					last = this.second;
					s = (this.minutes ? pad.call(abs(last), 2) :
							abs(last)) + s;
				}
				if (this.minutes || (threshold >= 0)) {
					if (threshold-- <= 0) {
						last = this.minute;
						s = ((this.hours || s) ? pad.call(abs(last), 2) : abs(last)) +
							(s ? ":" : "") + s;
					}
					if (this.hours || (threshold >= 0)) {
						if (threshold-- <= 0) {
							s = pad.call(abs(last = this.hour), 2) + (s ? ":" : "") + s;
						}
						if (this.days || (threshold >= 0)) {
							if (threshold-- <= 0) {
								s = abs(last = this.day) + "d" + (s ? " " : "") + s;
							}
							if (this.months || (threshold >= 0)) {
								if (threshold-- <= 0) {
									s = abs(last = this.month) + "m" + (s ? " " : "") + s;
								}
								if (this.years || (threshold >= 0)) {
									s = abs(last = this.year) + "y" +
										(s ? " " : "") + s;
								}
							}
						}
					}
				}
			}
		}
		if (last && (this.to < this.from)) (s = '-' + s);
		return s;
	})
});

},{"d":171,"es5-ext/date/#/copy":173,"es5-ext/date/#/days-in-month":174,"es5-ext/date/#/floor-day":175,"es5-ext/date/#/floor-month":176,"es5-ext/date/#/floor-year":177,"es5-ext/date/valid-date":179,"es5-ext/number/#/pad":184,"es5-ext/number/to-integer":185,"es5-ext/number/to-pos-integer":186,"es5-ext/string/format-method":204}],171:[function(require,module,exports){
'use strict';

var assign        = require('es5-ext/object/assign')
  , normalizeOpts = require('es5-ext/object/normalize-options')
  , isCallable    = require('es5-ext/object/is-callable')
  , contains      = require('es5-ext/string/#/contains')

  , d;

d = module.exports = function (dscr, value/*, options*/) {
	var c, e, w, options, desc;
	if ((arguments.length < 2) || (typeof dscr !== 'string')) {
		options = value;
		value = dscr;
		dscr = null;
	} else {
		options = arguments[2];
	}
	if (dscr == null) {
		c = w = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
		w = contains.call(dscr, 'w');
	}

	desc = { value: value, configurable: c, enumerable: e, writable: w };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

d.gs = function (dscr, get, set/*, options*/) {
	var c, e, options, desc;
	if (typeof dscr !== 'string') {
		options = set;
		set = get;
		get = dscr;
		dscr = null;
	} else {
		options = arguments[3];
	}
	if (get == null) {
		get = undefined;
	} else if (!isCallable(get)) {
		options = get;
		get = set = undefined;
	} else if (set == null) {
		set = undefined;
	} else if (!isCallable(set)) {
		options = set;
		set = undefined;
	}
	if (dscr == null) {
		c = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
	}

	desc = { get: get, set: set, configurable: c, enumerable: e };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

},{"es5-ext/object/assign":187,"es5-ext/object/is-callable":190,"es5-ext/object/normalize-options":195,"es5-ext/string/#/contains":197}],172:[function(require,module,exports){
(function(root, factory) {
    'use strict';
    // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.

    /* istanbul ignore next */
    if (typeof define === 'function' && define.amd) {
        define('error-stack-parser', ['stackframe'], factory);
    } else if (typeof exports === 'object') {
        module.exports = factory(require('stackframe'));
    } else {
        root.ErrorStackParser = factory(root.StackFrame);
    }
}(this, function ErrorStackParser(StackFrame) {
    'use strict';

    var FIREFOX_SAFARI_STACK_REGEXP = /(^|@)\S+\:\d+/;
    var CHROME_IE_STACK_REGEXP = /^\s*at .*(\S+\:\d+|\(native\))/m;
    var SAFARI_NATIVE_CODE_REGEXP = /^(eval@)?(\[native code\])?$/;

    return {
        /**
         * Given an Error object, extract the most information from it.
         *
         * @param {Error} error object
         * @return {Array} of StackFrames
         */
        parse: function ErrorStackParser$$parse(error) {
            if (typeof error.stacktrace !== 'undefined' || typeof error['opera#sourceloc'] !== 'undefined') {
                return this.parseOpera(error);
            } else if (error.stack && error.stack.match(CHROME_IE_STACK_REGEXP)) {
                return this.parseV8OrIE(error);
            } else if (error.stack) {
                return this.parseFFOrSafari(error);
            } else {
                throw new Error('Cannot parse given Error object');
            }
        },

        // Separate line and column numbers from a string of the form: (URI:Line:Column)
        extractLocation: function ErrorStackParser$$extractLocation(urlLike) {
            // Fail-fast but return locations like "(native)"
            if (urlLike.indexOf(':') === -1) {
                return [urlLike];
            }

            var regExp = /(.+?)(?:\:(\d+))?(?:\:(\d+))?$/;
            var parts = regExp.exec(urlLike.replace(/[\(\)]/g, ''));
            return [parts[1], parts[2] || undefined, parts[3] || undefined];
        },

        parseV8OrIE: function ErrorStackParser$$parseV8OrIE(error) {
            var filtered = error.stack.split('\n').filter(function(line) {
                return !!line.match(CHROME_IE_STACK_REGEXP);
            }, this);

            return filtered.map(function(line) {
                if (line.indexOf('(eval ') > -1) {
                    // Throw away eval information until we implement stacktrace.js/stackframe#8
                    line = line.replace(/eval code/g, 'eval').replace(/(\(eval at [^\()]*)|(\)\,.*$)/g, '');
                }
                var tokens = line.replace(/^\s+/, '').replace(/\(eval code/g, '(').split(/\s+/).slice(1);
                var locationParts = this.extractLocation(tokens.pop());
                var functionName = tokens.join(' ') || undefined;
                var fileName = ['eval', '<anonymous>'].indexOf(locationParts[0]) > -1 ? undefined : locationParts[0];

                return new StackFrame({
                    functionName: functionName,
                    fileName: fileName,
                    lineNumber: locationParts[1],
                    columnNumber: locationParts[2],
                    source: line
                });
            }, this);
        },

        parseFFOrSafari: function ErrorStackParser$$parseFFOrSafari(error) {
            var filtered = error.stack.split('\n').filter(function(line) {
                return !line.match(SAFARI_NATIVE_CODE_REGEXP);
            }, this);

            return filtered.map(function(line) {
                // Throw away eval information until we implement stacktrace.js/stackframe#8
                if (line.indexOf(' > eval') > -1) {
                    line = line.replace(/ line (\d+)(?: > eval line \d+)* > eval\:\d+\:\d+/g, ':$1');
                }

                if (line.indexOf('@') === -1 && line.indexOf(':') === -1) {
                    // Safari eval frames only have function names and nothing else
                    return new StackFrame({
                        functionName: line
                    });
                } else {
                    var tokens = line.split('@');
                    var locationParts = this.extractLocation(tokens.pop());
                    var functionName = tokens.join('@') || undefined;

                    return new StackFrame({
                        functionName: functionName,
                        fileName: locationParts[0],
                        lineNumber: locationParts[1],
                        columnNumber: locationParts[2],
                        source: line
                    });
                }
            }, this);
        },

        parseOpera: function ErrorStackParser$$parseOpera(e) {
            if (!e.stacktrace || (e.message.indexOf('\n') > -1 &&
                e.message.split('\n').length > e.stacktrace.split('\n').length)) {
                return this.parseOpera9(e);
            } else if (!e.stack) {
                return this.parseOpera10(e);
            } else {
                return this.parseOpera11(e);
            }
        },

        parseOpera9: function ErrorStackParser$$parseOpera9(e) {
            var lineRE = /Line (\d+).*script (?:in )?(\S+)/i;
            var lines = e.message.split('\n');
            var result = [];

            for (var i = 2, len = lines.length; i < len; i += 2) {
                var match = lineRE.exec(lines[i]);
                if (match) {
                    result.push(new StackFrame({
                        fileName: match[2],
                        lineNumber: match[1],
                        source: lines[i]
                    }));
                }
            }

            return result;
        },

        parseOpera10: function ErrorStackParser$$parseOpera10(e) {
            var lineRE = /Line (\d+).*script (?:in )?(\S+)(?:: In function (\S+))?$/i;
            var lines = e.stacktrace.split('\n');
            var result = [];

            for (var i = 0, len = lines.length; i < len; i += 2) {
                var match = lineRE.exec(lines[i]);
                if (match) {
                    result.push(
                        new StackFrame({
                            functionName: match[3] || undefined,
                            fileName: match[2],
                            lineNumber: match[1],
                            source: lines[i]
                        })
                    );
                }
            }

            return result;
        },

        // Opera 10.65+ Error.stack very similar to FF/Safari
        parseOpera11: function ErrorStackParser$$parseOpera11(error) {
            var filtered = error.stack.split('\n').filter(function(line) {
                return !!line.match(FIREFOX_SAFARI_STACK_REGEXP) && !line.match(/^Error created at/);
            }, this);

            return filtered.map(function(line) {
                var tokens = line.split('@');
                var locationParts = this.extractLocation(tokens.pop());
                var functionCall = (tokens.shift() || '');
                var functionName = functionCall
                        .replace(/<anonymous function(: (\w+))?>/, '$2')
                        .replace(/\([^\)]*\)/g, '') || undefined;
                var argsRaw;
                if (functionCall.match(/\(([^\)]*)\)/)) {
                    argsRaw = functionCall.replace(/^[^\(]+\(([^\)]*)\)$/, '$1');
                }
                var args = (argsRaw === undefined || argsRaw === '[arguments not available]') ?
                    undefined : argsRaw.split(',');

                return new StackFrame({
                    functionName: functionName,
                    args: args,
                    fileName: locationParts[0],
                    lineNumber: locationParts[1],
                    columnNumber: locationParts[2],
                    source: line
                });
            }, this);
        }
    };
}));

},{"stackframe":288}],173:[function(require,module,exports){
"use strict";

var getTime = Date.prototype.getTime;

module.exports = function () {
 return new Date(getTime.call(this));
};

},{}],174:[function(require,module,exports){
"use strict";

var getMonth = Date.prototype.getMonth;

module.exports = function () {
	switch (getMonth.call(this)) {
	case 1:
		return this.getFullYear() % 4 ? 28 : 29;
	case 3:
	case 5:
	case 8:
	case 10:
		return 30;
	default:
		return 31;
	}
};

},{}],175:[function(require,module,exports){
"use strict";

var setHours = Date.prototype.setHours;

module.exports = function () {
	setHours.call(this, 0, 0, 0, 0);
	return this;
};

},{}],176:[function(require,module,exports){
"use strict";

var floorDay = require("./floor-day");

module.exports = function () {
	floorDay.call(this).setDate(1);
	return this;
};

},{"./floor-day":175}],177:[function(require,module,exports){
"use strict";

var floorMonth = require("./floor-month");

module.exports = function () {
	floorMonth.call(this).setMonth(0);
	return this;
};

},{"./floor-month":176}],178:[function(require,module,exports){
"use strict";

var objToString = Object.prototype.toString, id = objToString.call(new Date());

module.exports = function (value) {
	return (value && (value instanceof Date || objToString.call(value) === id)) || false;
};

},{}],179:[function(require,module,exports){
"use strict";

var isDate = require("./is-date");

module.exports = function (value) {
	if (!isDate(value) || isNaN(value)) throw new TypeError(value + " is not valid Date object");
	return value;
};

},{"./is-date":178}],180:[function(require,module,exports){
"use strict";

// eslint-disable-next-line no-empty-function
module.exports = function () {};

},{}],181:[function(require,module,exports){
"use strict";

module.exports = require("./is-implemented")()
	? Math.sign
	: require("./shim");

},{"./is-implemented":182,"./shim":183}],182:[function(require,module,exports){
"use strict";

module.exports = function () {
	var sign = Math.sign;
	if (typeof sign !== "function") return false;
	return (sign(10) === 1) && (sign(-20) === -1);
};

},{}],183:[function(require,module,exports){
"use strict";

module.exports = function (value) {
	value = Number(value);
	if (isNaN(value) || (value === 0)) return value;
	return value > 0 ? 1 : -1;
};

},{}],184:[function(require,module,exports){
"use strict";

var pad      = require("../../string/#/pad")
  , toPosInt = require("../to-pos-integer")

  , toFixed = Number.prototype.toFixed;

module.exports = function (length/*, precision*/) {
	var precision;
	length = toPosInt(length);
	precision = toPosInt(arguments[1]);

	return pad.call(precision ? toFixed.call(this, precision) : this,
		"0", length + (precision ? 1 + precision : 0));
};

},{"../../string/#/pad":200,"../to-pos-integer":186}],185:[function(require,module,exports){
"use strict";

var sign = require("../math/sign")

  , abs = Math.abs, floor = Math.floor;

module.exports = function (value) {
	if (isNaN(value)) return 0;
	value = Number(value);
	if ((value === 0) || !isFinite(value)) return value;
	return sign(value) * floor(abs(value));
};

},{"../math/sign":181}],186:[function(require,module,exports){
"use strict";

var toInteger = require("./to-integer")

  , max = Math.max;

module.exports = function (value) {
 return max(0, toInteger(value));
};

},{"./to-integer":185}],187:[function(require,module,exports){
"use strict";

module.exports = require("./is-implemented")()
	? Object.assign
	: require("./shim");

},{"./is-implemented":188,"./shim":189}],188:[function(require,module,exports){
"use strict";

module.exports = function () {
	var assign = Object.assign, obj;
	if (typeof assign !== "function") return false;
	obj = { foo: "raz" };
	assign(obj, { bar: "dwa" }, { trzy: "trzy" });
	return (obj.foo + obj.bar + obj.trzy) === "razdwatrzy";
};

},{}],189:[function(require,module,exports){
"use strict";

var keys  = require("../keys")
  , value = require("../valid-value")
  , max   = Math.max;

module.exports = function (dest, src /*, …srcn*/) {
	var error, i, length = max(arguments.length, 2), assign;
	dest = Object(value(dest));
	assign = function (key) {
		try {
			dest[key] = src[key];
		} catch (e) {
			if (!error) error = e;
		}
	};
	for (i = 1; i < length; ++i) {
		src = arguments[i];
		keys(src).forEach(assign);
	}
	if (error !== undefined) throw error;
	return dest;
};

},{"../keys":192,"../valid-value":196}],190:[function(require,module,exports){
// Deprecated

"use strict";

module.exports = function (obj) {
 return typeof obj === "function";
};

},{}],191:[function(require,module,exports){
"use strict";

var _undefined = require("../function/noop")(); // Support ES3 engines

module.exports = function (val) {
 return (val !== _undefined) && (val !== null);
};

},{"../function/noop":180}],192:[function(require,module,exports){
"use strict";

module.exports = require("./is-implemented")()
	? Object.keys
	: require("./shim");

},{"./is-implemented":193,"./shim":194}],193:[function(require,module,exports){
"use strict";

module.exports = function () {
	try {
		Object.keys("primitive");
		return true;
	} catch (e) {
 return false;
}
};

},{}],194:[function(require,module,exports){
"use strict";

var isValue = require("../is-value");

var keys = Object.keys;

module.exports = function (object) {
	return keys(isValue(object) ? Object(object) : object);
};

},{"../is-value":191}],195:[function(require,module,exports){
"use strict";

var isValue = require("./is-value");

var forEach = Array.prototype.forEach, create = Object.create;

var process = function (src, obj) {
	var key;
	for (key in src) obj[key] = src[key];
};

// eslint-disable-next-line no-unused-vars
module.exports = function (opts1 /*, …options*/) {
	var result = create(null);
	forEach.call(arguments, function (options) {
		if (!isValue(options)) return;
		process(Object(options), result);
	});
	return result;
};

},{"./is-value":191}],196:[function(require,module,exports){
"use strict";

var isValue = require("./is-value");

module.exports = function (value) {
	if (!isValue(value)) throw new TypeError("Cannot use null or undefined");
	return value;
};

},{"./is-value":191}],197:[function(require,module,exports){
"use strict";

module.exports = require("./is-implemented")()
	? String.prototype.contains
	: require("./shim");

},{"./is-implemented":198,"./shim":199}],198:[function(require,module,exports){
"use strict";

var str = "razdwatrzy";

module.exports = function () {
	if (typeof str.contains !== "function") return false;
	return (str.contains("dwa") === true) && (str.contains("foo") === false);
};

},{}],199:[function(require,module,exports){
"use strict";

var indexOf = String.prototype.indexOf;

module.exports = function (searchString/*, position*/) {
	return indexOf.call(this, searchString, arguments[1]) > -1;
};

},{}],200:[function(require,module,exports){
"use strict";

var toInteger = require("../../number/to-integer")
  , value     = require("../../object/valid-value")
  , repeat    = require("./repeat")

  , abs = Math.abs, max = Math.max;

module.exports = function (fill/*, length*/) {
	var self = String(value(this))
	  , sLength = self.length
	  , length = arguments[1];

	length = isNaN(length) ? 1 : toInteger(length);
	fill = repeat.call(String(fill), abs(length));
	if (length >= 0) return fill.slice(0, max(0, length - sLength)) + self;
	return self + ((sLength + length) >= 0 ? "" : fill.slice(length + sLength));
};

},{"../../number/to-integer":185,"../../object/valid-value":196,"./repeat":201}],201:[function(require,module,exports){
"use strict";

module.exports = require("./is-implemented")()
	? String.prototype.repeat
	: require("./shim");

},{"./is-implemented":202,"./shim":203}],202:[function(require,module,exports){
"use strict";

var str = "foo";

module.exports = function () {
	if (typeof str.repeat !== "function") return false;
	return str.repeat(2) === "foofoo";
};

},{}],203:[function(require,module,exports){
// Thanks
// @rauchma http://www.2ality.com/2014/01/efficient-string-repeat.html
// @mathiasbynens https://github.com/mathiasbynens/String.prototype.repeat/blob/4a4b567def/repeat.js

"use strict";

var value     = require("../../../object/valid-value")
  , toInteger = require("../../../number/to-integer");

module.exports = function (count) {
	var str = String(value(this)), result;
	count = toInteger(count);
	if (count < 0) throw new RangeError("Count must be >= 0");
	if (!isFinite(count)) throw new RangeError("Count must be < ∞");

	result = "";
	while (count) {
		if (count % 2) result += str;
		if (count > 1) str += str;
		// eslint-disable-next-line no-bitwise
		count >>= 1;
	}
	return result;
};

},{"../../../number/to-integer":185,"../../../object/valid-value":196}],204:[function(require,module,exports){
"use strict";

var isCallable = require("../object/is-callable")
  , value      = require("../object/valid-value")
  , call       = Function.prototype.call;

module.exports = function (fmap) {
	fmap = Object(value(fmap));
	return function (pattern) {
		var context = this;
		value(context);
		pattern = String(pattern);
		return pattern.replace(/%([a-zA-Z]+)|\\([\u0000-\uffff])/g, function (
			match,
			token,
			escapeChar
		) {
			var t, result;
			if (escapeChar) return escapeChar;
			t = token;
			while (t && !(result = fmap[t])) t = t.slice(0, -1);
			if (!result) return match;
			if (isCallable(result)) result = call.call(result, context);
			return result + token.slice(t.length);
		});
	};
};

},{"../object/is-callable":190,"../object/valid-value":196}],205:[function(require,module,exports){
'use strict';

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;

module.exports = function (str) {
	if (typeof str !== 'string') {
		throw new TypeError('Expected a string');
	}

	return str.replace(matchOperatorsRe, '\\$&');
};

},{}],206:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

function EventEmitter() {
  this._events = this._events || {};
  this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function(n) {
  if (!isNumber(n) || n < 0 || isNaN(n))
    throw TypeError('n must be a positive number');
  this._maxListeners = n;
  return this;
};

EventEmitter.prototype.emit = function(type) {
  var er, handler, len, args, i, listeners;

  if (!this._events)
    this._events = {};

  // If there is no 'error' event listener then throw.
  if (type === 'error') {
    if (!this._events.error ||
        (isObject(this._events.error) && !this._events.error.length)) {
      er = arguments[1];
      if (er instanceof Error) {
        throw er; // Unhandled 'error' event
      } else {
        // At least give some kind of context to the user
        var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
        err.context = er;
        throw err;
      }
    }
  }

  handler = this._events[type];

  if (isUndefined(handler))
    return false;

  if (isFunction(handler)) {
    switch (arguments.length) {
      // fast cases
      case 1:
        handler.call(this);
        break;
      case 2:
        handler.call(this, arguments[1]);
        break;
      case 3:
        handler.call(this, arguments[1], arguments[2]);
        break;
      // slower
      default:
        args = Array.prototype.slice.call(arguments, 1);
        handler.apply(this, args);
    }
  } else if (isObject(handler)) {
    args = Array.prototype.slice.call(arguments, 1);
    listeners = handler.slice();
    len = listeners.length;
    for (i = 0; i < len; i++)
      listeners[i].apply(this, args);
  }

  return true;
};

EventEmitter.prototype.addListener = function(type, listener) {
  var m;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events)
    this._events = {};

  // To avoid recursion in the case that type === "newListener"! Before
  // adding it to the listeners, first emit "newListener".
  if (this._events.newListener)
    this.emit('newListener', type,
              isFunction(listener.listener) ?
              listener.listener : listener);

  if (!this._events[type])
    // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;
  else if (isObject(this._events[type]))
    // If we've already got an array, just append.
    this._events[type].push(listener);
  else
    // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener];

  // Check for listener leak
  if (isObject(this._events[type]) && !this._events[type].warned) {
    if (!isUndefined(this._maxListeners)) {
      m = this._maxListeners;
    } else {
      m = EventEmitter.defaultMaxListeners;
    }

    if (m && m > 0 && this._events[type].length > m) {
      this._events[type].warned = true;
      console.error('(node) warning: possible EventEmitter memory ' +
                    'leak detected. %d listeners added. ' +
                    'Use emitter.setMaxListeners() to increase limit.',
                    this._events[type].length);
      if (typeof console.trace === 'function') {
        // not supported in IE 10
        console.trace();
      }
    }
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function(type, listener) {
  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  var fired = false;

  function g() {
    this.removeListener(type, g);

    if (!fired) {
      fired = true;
      listener.apply(this, arguments);
    }
  }

  g.listener = listener;
  this.on(type, g);

  return this;
};

// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
  var list, position, length, i;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events || !this._events[type])
    return this;

  list = this._events[type];
  length = list.length;
  position = -1;

  if (list === listener ||
      (isFunction(list.listener) && list.listener === listener)) {
    delete this._events[type];
    if (this._events.removeListener)
      this.emit('removeListener', type, listener);

  } else if (isObject(list)) {
    for (i = length; i-- > 0;) {
      if (list[i] === listener ||
          (list[i].listener && list[i].listener === listener)) {
        position = i;
        break;
      }
    }

    if (position < 0)
      return this;

    if (list.length === 1) {
      list.length = 0;
      delete this._events[type];
    } else {
      list.splice(position, 1);
    }

    if (this._events.removeListener)
      this.emit('removeListener', type, listener);
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function(type) {
  var key, listeners;

  if (!this._events)
    return this;

  // not listening for removeListener, no need to emit
  if (!this._events.removeListener) {
    if (arguments.length === 0)
      this._events = {};
    else if (this._events[type])
      delete this._events[type];
    return this;
  }

  // emit removeListener for all listeners on all events
  if (arguments.length === 0) {
    for (key in this._events) {
      if (key === 'removeListener') continue;
      this.removeAllListeners(key);
    }
    this.removeAllListeners('removeListener');
    this._events = {};
    return this;
  }

  listeners = this._events[type];

  if (isFunction(listeners)) {
    this.removeListener(type, listeners);
  } else if (listeners) {
    // LIFO order
    while (listeners.length)
      this.removeListener(type, listeners[listeners.length - 1]);
  }
  delete this._events[type];

  return this;
};

EventEmitter.prototype.listeners = function(type) {
  var ret;
  if (!this._events || !this._events[type])
    ret = [];
  else if (isFunction(this._events[type]))
    ret = [this._events[type]];
  else
    ret = this._events[type].slice();
  return ret;
};

EventEmitter.prototype.listenerCount = function(type) {
  if (this._events) {
    var evlistener = this._events[type];

    if (isFunction(evlistener))
      return 1;
    else if (evlistener)
      return evlistener.length;
  }
  return 0;
};

EventEmitter.listenerCount = function(emitter, type) {
  return emitter.listenerCount(type);
};

function isFunction(arg) {
  return typeof arg === 'function';
}

function isNumber(arg) {
  return typeof arg === 'number';
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isUndefined(arg) {
  return arg === void 0;
}

},{}],207:[function(require,module,exports){
(function (process){
/*
 * extsprintf.js: extended POSIX-style sprintf
 */

var mod_assert = require('assert');
var mod_util = require('util');

/*
 * Public interface
 */
exports.sprintf = jsSprintf;
exports.printf = jsPrintf;
exports.fprintf = jsFprintf;

/*
 * Stripped down version of s[n]printf(3c).  We make a best effort to throw an
 * exception when given a format string we don't understand, rather than
 * ignoring it, so that we won't break existing programs if/when we go implement
 * the rest of this.
 *
 * This implementation currently supports specifying
 *	- field alignment ('-' flag),
 * 	- zero-pad ('0' flag)
 *	- always show numeric sign ('+' flag),
 *	- field width
 *	- conversions for strings, decimal integers, and floats (numbers).
 *	- argument size specifiers.  These are all accepted but ignored, since
 *	  Javascript has no notion of the physical size of an argument.
 *
 * Everything else is currently unsupported, most notably precision, unsigned
 * numbers, non-decimal numbers, and characters.
 */
function jsSprintf(fmt)
{
	var regex = [
	    '([^%]*)',				/* normal text */
	    '%',				/* start of format */
	    '([\'\\-+ #0]*?)',			/* flags (optional) */
	    '([1-9]\\d*)?',			/* width (optional) */
	    '(\\.([1-9]\\d*))?',		/* precision (optional) */
	    '[lhjztL]*?',			/* length mods (ignored) */
	    '([diouxXfFeEgGaAcCsSp%jr])'	/* conversion */
	].join('');

	var re = new RegExp(regex);
	var args = Array.prototype.slice.call(arguments, 1);
	var flags, width, precision, conversion;
	var left, pad, sign, arg, match;
	var ret = '';
	var argn = 1;

	mod_assert.equal('string', typeof (fmt));

	while ((match = re.exec(fmt)) !== null) {
		ret += match[1];
		fmt = fmt.substring(match[0].length);

		flags = match[2] || '';
		width = match[3] || 0;
		precision = match[4] || '';
		conversion = match[6];
		left = false;
		sign = false;
		pad = ' ';

		if (conversion == '%') {
			ret += '%';
			continue;
		}

		if (args.length === 0)
			throw (new Error('too few args to sprintf'));

		arg = args.shift();
		argn++;

		if (flags.match(/[\' #]/))
			throw (new Error(
			    'unsupported flags: ' + flags));

		if (precision.length > 0)
			throw (new Error(
			    'non-zero precision not supported'));

		if (flags.match(/-/))
			left = true;

		if (flags.match(/0/))
			pad = '0';

		if (flags.match(/\+/))
			sign = true;

		switch (conversion) {
		case 's':
			if (arg === undefined || arg === null)
				throw (new Error('argument ' + argn +
				    ': attempted to print undefined or null ' +
				    'as a string'));
			ret += doPad(pad, width, left, arg.toString());
			break;

		case 'd':
			arg = Math.floor(arg);
			/*jsl:fallthru*/
		case 'f':
			sign = sign && arg > 0 ? '+' : '';
			ret += sign + doPad(pad, width, left,
			    arg.toString());
			break;

		case 'x':
			ret += doPad(pad, width, left, arg.toString(16));
			break;

		case 'j': /* non-standard */
			if (width === 0)
				width = 10;
			ret += mod_util.inspect(arg, false, width);
			break;

		case 'r': /* non-standard */
			ret += dumpException(arg);
			break;

		default:
			throw (new Error('unsupported conversion: ' +
			    conversion));
		}
	}

	ret += fmt;
	return (ret);
}

function jsPrintf() {
	var args = Array.prototype.slice.call(arguments);
	args.unshift(process.stdout);
	jsFprintf.apply(null, args);
}

function jsFprintf(stream) {
	var args = Array.prototype.slice.call(arguments, 1);
	return (stream.write(jsSprintf.apply(this, args)));
}

function doPad(chr, width, left, str)
{
	var ret = str;

	while (ret.length < width) {
		if (left)
			ret += chr;
		else
			ret = chr + ret;
	}

	return (ret);
}

/*
 * This function dumps long stack traces for exceptions having a cause() method.
 * See node-verror for an example.
 */
function dumpException(ex)
{
	var ret;

	if (!(ex instanceof Error))
		throw (new Error(jsSprintf('invalid type for %%r: %j', ex)));

	/* Note that V8 prepends "ex.stack" with ex.toString(). */
	ret = 'EXCEPTION: ' + ex.constructor.name + ': ' + ex.stack;

	if (ex.cause && typeof (ex.cause) === 'function') {
		var cex = ex.cause();
		if (cex) {
			ret += '\nCaused by: ' + dumpException(cex);
		}
	}

	return (ret);
}

}).call(this,require('_process'))
},{"_process":255,"assert":5,"util":309}],208:[function(require,module,exports){
(function (process){
'use strict';
const escapeStringRegexp = require('escape-string-regexp');

const platform = process.platform;

const main = {
	tick: '✔',
	cross: '✖',
	star: '★',
	square: '▇',
	squareSmall: '◻',
	squareSmallFilled: '◼',
	play: '▶',
	circle: '◯',
	circleFilled: '◉',
	circleDotted: '◌',
	circleDouble: '◎',
	circleCircle: 'ⓞ',
	circleCross: 'ⓧ',
	circlePipe: 'Ⓘ',
	circleQuestionMark: '?⃝',
	bullet: '●',
	dot: '․',
	line: '─',
	ellipsis: '…',
	pointer: '❯',
	pointerSmall: '›',
	info: 'ℹ',
	warning: '⚠',
	hamburger: '☰',
	smiley: '㋡',
	mustache: '෴',
	heart: '♥',
	arrowUp: '↑',
	arrowDown: '↓',
	arrowLeft: '←',
	arrowRight: '→',
	radioOn: '◉',
	radioOff: '◯',
	checkboxOn: '☒',
	checkboxOff: '☐',
	checkboxCircleOn: 'ⓧ',
	checkboxCircleOff: 'Ⓘ',
	questionMarkPrefix: '?⃝',
	oneHalf: '½',
	oneThird: '⅓',
	oneQuarter: '¼',
	oneFifth: '⅕',
	oneSixth: '⅙',
	oneSeventh: '⅐',
	oneEighth: '⅛',
	oneNinth: '⅑',
	oneTenth: '⅒',
	twoThirds: '⅔',
	twoFifths: '⅖',
	threeQuarters: '¾',
	threeFifths: '⅗',
	threeEighths: '⅜',
	fourFifths: '⅘',
	fiveSixths: '⅚',
	fiveEighths: '⅝',
	sevenEighths: '⅞'
};

const win = {
	tick: '√',
	cross: '×',
	star: '*',
	square: '█',
	squareSmall: '[ ]',
	squareSmallFilled: '[█]',
	play: '►',
	circle: '( )',
	circleFilled: '(*)',
	circleDotted: '( )',
	circleDouble: '( )',
	circleCircle: '(○)',
	circleCross: '(×)',
	circlePipe: '(│)',
	circleQuestionMark: '(?)',
	bullet: '*',
	dot: '.',
	line: '─',
	ellipsis: '...',
	pointer: '>',
	pointerSmall: '»',
	info: 'i',
	warning: '‼',
	hamburger: '≡',
	smiley: '☺',
	mustache: '┌─┐',
	heart: main.heart,
	arrowUp: main.arrowUp,
	arrowDown: main.arrowDown,
	arrowLeft: main.arrowLeft,
	arrowRight: main.arrowRight,
	radioOn: '(*)',
	radioOff: '( )',
	checkboxOn: '[×]',
	checkboxOff: '[ ]',
	checkboxCircleOn: '(×)',
	checkboxCircleOff: '( )',
	questionMarkPrefix: '？',
	oneHalf: '1/2',
	oneThird: '1/3',
	oneQuarter: '1/4',
	oneFifth: '1/5',
	oneSixth: '1/6',
	oneSeventh: '1/7',
	oneEighth: '1/8',
	oneNinth: '1/9',
	oneTenth: '1/10',
	twoThirds: '2/3',
	twoFifths: '2/5',
	threeQuarters: '3/4',
	threeFifths: '3/5',
	threeEighths: '3/8',
	fourFifths: '4/5',
	fiveSixths: '5/6',
	fiveEighths: '5/8',
	sevenEighths: '7/8'
};

if (platform === 'linux') {
	// the main one doesn't look that good on Ubuntu
	main.questionMarkPrefix = '?';
}

const figures = platform === 'win32' ? win : main;

const fn = str => {
	if (figures === main) {
		return str;
	}

	Object.keys(main).forEach(key => {
		if (main[key] === figures[key]) {
			return;
		}

		str = str.replace(new RegExp(escapeStringRegexp(main[key]), 'g'), figures[key]);
	});

	return str;
};

module.exports = Object.assign(fn, figures);

}).call(this,require('_process'))
},{"_process":255,"escape-string-regexp":205}],209:[function(require,module,exports){
(function (process){
module.exports = realpath
realpath.realpath = realpath
realpath.sync = realpathSync
realpath.realpathSync = realpathSync
realpath.monkeypatch = monkeypatch
realpath.unmonkeypatch = unmonkeypatch

var fs = require('fs')
var origRealpath = fs.realpath
var origRealpathSync = fs.realpathSync

var version = process.version
var ok = /^v[0-5]\./.test(version)
var old = require('./old.js')

function newError (er) {
  return er && er.syscall === 'realpath' && (
    er.code === 'ELOOP' ||
    er.code === 'ENOMEM' ||
    er.code === 'ENAMETOOLONG'
  )
}

function realpath (p, cache, cb) {
  if (ok) {
    return origRealpath(p, cache, cb)
  }

  if (typeof cache === 'function') {
    cb = cache
    cache = null
  }
  origRealpath(p, cache, function (er, result) {
    if (newError(er)) {
      old.realpath(p, cache, cb)
    } else {
      cb(er, result)
    }
  })
}

function realpathSync (p, cache) {
  if (ok) {
    return origRealpathSync(p, cache)
  }

  try {
    return origRealpathSync(p, cache)
  } catch (er) {
    if (newError(er)) {
      return old.realpathSync(p, cache)
    } else {
      throw er
    }
  }
}

function monkeypatch () {
  fs.realpath = realpath
  fs.realpathSync = realpathSync
}

function unmonkeypatch () {
  fs.realpath = origRealpath
  fs.realpathSync = origRealpathSync
}

}).call(this,require('_process'))
},{"./old.js":210,"_process":255,"fs":39}],210:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var pathModule = require('path');
var isWindows = process.platform === 'win32';
var fs = require('fs');

// JavaScript implementation of realpath, ported from node pre-v6

var DEBUG = process.env.NODE_DEBUG && /fs/.test(process.env.NODE_DEBUG);

function rethrow() {
  // Only enable in debug mode. A backtrace uses ~1000 bytes of heap space and
  // is fairly slow to generate.
  var callback;
  if (DEBUG) {
    var backtrace = new Error;
    callback = debugCallback;
  } else
    callback = missingCallback;

  return callback;

  function debugCallback(err) {
    if (err) {
      backtrace.message = err.message;
      err = backtrace;
      missingCallback(err);
    }
  }

  function missingCallback(err) {
    if (err) {
      if (process.throwDeprecation)
        throw err;  // Forgot a callback but don't know where? Use NODE_DEBUG=fs
      else if (!process.noDeprecation) {
        var msg = 'fs: missing callback ' + (err.stack || err.message);
        if (process.traceDeprecation)
          console.trace(msg);
        else
          console.error(msg);
      }
    }
  }
}

function maybeCallback(cb) {
  return typeof cb === 'function' ? cb : rethrow();
}

var normalize = pathModule.normalize;

// Regexp that finds the next partion of a (partial) path
// result is [base_with_slash, base], e.g. ['somedir/', 'somedir']
if (isWindows) {
  var nextPartRe = /(.*?)(?:[\/\\]+|$)/g;
} else {
  var nextPartRe = /(.*?)(?:[\/]+|$)/g;
}

// Regex to find the device root, including trailing slash. E.g. 'c:\\'.
if (isWindows) {
  var splitRootRe = /^(?:[a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?[\\\/]*/;
} else {
  var splitRootRe = /^[\/]*/;
}

exports.realpathSync = function realpathSync(p, cache) {
  // make p is absolute
  p = pathModule.resolve(p);

  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
    return cache[p];
  }

  var original = p,
      seenLinks = {},
      knownHard = {};

  // current character position in p
  var pos;
  // the partial path so far, including a trailing slash if any
  var current;
  // the partial path without a trailing slash (except when pointing at a root)
  var base;
  // the partial path scanned in the previous round, with slash
  var previous;

  start();

  function start() {
    // Skip over roots
    var m = splitRootRe.exec(p);
    pos = m[0].length;
    current = m[0];
    base = m[0];
    previous = '';

    // On windows, check that the root exists. On unix there is no need.
    if (isWindows && !knownHard[base]) {
      fs.lstatSync(base);
      knownHard[base] = true;
    }
  }

  // walk down the path, swapping out linked pathparts for their real
  // values
  // NB: p.length changes.
  while (pos < p.length) {
    // find the next part
    nextPartRe.lastIndex = pos;
    var result = nextPartRe.exec(p);
    previous = current;
    current += result[0];
    base = previous + result[1];
    pos = nextPartRe.lastIndex;

    // continue if not a symlink
    if (knownHard[base] || (cache && cache[base] === base)) {
      continue;
    }

    var resolvedLink;
    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
      // some known symbolic link.  no need to stat again.
      resolvedLink = cache[base];
    } else {
      var stat = fs.lstatSync(base);
      if (!stat.isSymbolicLink()) {
        knownHard[base] = true;
        if (cache) cache[base] = base;
        continue;
      }

      // read the link if it wasn't read before
      // dev/ino always return 0 on windows, so skip the check.
      var linkTarget = null;
      if (!isWindows) {
        var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
        if (seenLinks.hasOwnProperty(id)) {
          linkTarget = seenLinks[id];
        }
      }
      if (linkTarget === null) {
        fs.statSync(base);
        linkTarget = fs.readlinkSync(base);
      }
      resolvedLink = pathModule.resolve(previous, linkTarget);
      // track this, if given a cache.
      if (cache) cache[base] = resolvedLink;
      if (!isWindows) seenLinks[id] = linkTarget;
    }

    // resolve the link, then start over
    p = pathModule.resolve(resolvedLink, p.slice(pos));
    start();
  }

  if (cache) cache[original] = p;

  return p;
};


exports.realpath = function realpath(p, cache, cb) {
  if (typeof cb !== 'function') {
    cb = maybeCallback(cache);
    cache = null;
  }

  // make p is absolute
  p = pathModule.resolve(p);

  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
    return process.nextTick(cb.bind(null, null, cache[p]));
  }

  var original = p,
      seenLinks = {},
      knownHard = {};

  // current character position in p
  var pos;
  // the partial path so far, including a trailing slash if any
  var current;
  // the partial path without a trailing slash (except when pointing at a root)
  var base;
  // the partial path scanned in the previous round, with slash
  var previous;

  start();

  function start() {
    // Skip over roots
    var m = splitRootRe.exec(p);
    pos = m[0].length;
    current = m[0];
    base = m[0];
    previous = '';

    // On windows, check that the root exists. On unix there is no need.
    if (isWindows && !knownHard[base]) {
      fs.lstat(base, function(err) {
        if (err) return cb(err);
        knownHard[base] = true;
        LOOP();
      });
    } else {
      process.nextTick(LOOP);
    }
  }

  // walk down the path, swapping out linked pathparts for their real
  // values
  function LOOP() {
    // stop if scanned past end of path
    if (pos >= p.length) {
      if (cache) cache[original] = p;
      return cb(null, p);
    }

    // find the next part
    nextPartRe.lastIndex = pos;
    var result = nextPartRe.exec(p);
    previous = current;
    current += result[0];
    base = previous + result[1];
    pos = nextPartRe.lastIndex;

    // continue if not a symlink
    if (knownHard[base] || (cache && cache[base] === base)) {
      return process.nextTick(LOOP);
    }

    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
      // known symbolic link.  no need to stat again.
      return gotResolvedLink(cache[base]);
    }

    return fs.lstat(base, gotStat);
  }

  function gotStat(err, stat) {
    if (err) return cb(err);

    // if not a symlink, skip to the next path part
    if (!stat.isSymbolicLink()) {
      knownHard[base] = true;
      if (cache) cache[base] = base;
      return process.nextTick(LOOP);
    }

    // stat & read the link if not read before
    // call gotTarget as soon as the link target is known
    // dev/ino always return 0 on windows, so skip the check.
    if (!isWindows) {
      var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
      if (seenLinks.hasOwnProperty(id)) {
        return gotTarget(null, seenLinks[id], base);
      }
    }
    fs.stat(base, function(err) {
      if (err) return cb(err);

      fs.readlink(base, function(err, target) {
        if (!isWindows) seenLinks[id] = target;
        gotTarget(err, target);
      });
    });
  }

  function gotTarget(err, target, base) {
    if (err) return cb(err);

    var resolvedLink = pathModule.resolve(previous, target);
    if (cache) cache[base] = resolvedLink;
    gotResolvedLink(resolvedLink);
  }

  function gotResolvedLink(resolvedLink) {
    // resolve the link, then start over
    p = pathModule.resolve(resolvedLink, p.slice(pos));
    start();
  }
};

}).call(this,require('_process'))
},{"_process":255,"fs":39,"path":251}],211:[function(require,module,exports){
(function (factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module
    define([], factory)
  }
  if (typeof module !== 'undefined' && module.exports) {
    // Node.js/RequireJS
    module.exports = factory();
  }
  if (typeof window === 'object'){
    // Browser globals
    window.Gherkin = factory();
  }
}(function () {
  return {
    Parser: require('./lib/gherkin/parser'),
    TokenScanner: require('./lib/gherkin/token_scanner'),
    TokenMatcher: require('./lib/gherkin/token_matcher'),
    AstBuilder: require('./lib/gherkin/ast_builder'),
    Compiler: require('./lib/gherkin/pickles/compiler'),
    DIALECTS: require('./lib/gherkin/dialects'),
    generateEvents: require('./lib/gherkin/generate_events')
  };
}));

},{"./lib/gherkin/ast_builder":212,"./lib/gherkin/dialects":215,"./lib/gherkin/generate_events":217,"./lib/gherkin/parser":220,"./lib/gherkin/pickles/compiler":221,"./lib/gherkin/token_matcher":223,"./lib/gherkin/token_scanner":224}],212:[function(require,module,exports){
var AstNode = require('./ast_node');
var Errors = require('./errors');

module.exports = function AstBuilder () {

  var stack = [new AstNode('None')];
  var comments = [];

  this.reset = function () {
    stack = [new AstNode('None')];
    comments = [];
  };

  this.startRule = function (ruleType) {
    stack.push(new AstNode(ruleType));
  };

  this.endRule = function (ruleType) {
    var node = stack.pop();
    var transformedNode = transformNode(node);
    currentNode().add(node.ruleType, transformedNode);
  };

  this.build = function (token) {
    if(token.matchedType === 'Comment') {
      comments.push({
        type: 'Comment',
        location: getLocation(token),
        text: token.matchedText
      });
    } else {
      currentNode().add(token.matchedType, token);
    }
  };

  this.getResult = function () {
    return currentNode().getSingle('GherkinDocument');
  };

  function currentNode () {
    return stack[stack.length - 1];
  }

  function getLocation (token, column) {
    return !column ? token.location : {line: token.location.line, column: column};
  }

  function getTags (node) {
    var tags = [];
    var tagsNode = node.getSingle('Tags');
    if (!tagsNode) return tags;
    tagsNode.getTokens('TagLine').forEach(function (token) {
      token.matchedItems.forEach(function (tagItem) {
        tags.push({
          type: 'Tag',
          location: getLocation(token, tagItem.column),
          name: tagItem.text
        });
      });

    });
    return tags;
  }

  function getCells(tableRowToken) {
    return tableRowToken.matchedItems.map(function (cellItem) {
      return {
        type: 'TableCell',
        location: getLocation(tableRowToken, cellItem.column),
        value: cellItem.text
      }
    });
  }

  function getDescription (node) {
    return node.getSingle('Description');
  }

  function getSteps (node) {
    return node.getItems('Step');
  }

  function getTableRows(node) {
    var rows = node.getTokens('TableRow').map(function (token) {
      return {
        type: 'TableRow',
        location: getLocation(token),
        cells: getCells(token)
      };
    });
    ensureCellCount(rows);
    return rows;
  }

  function ensureCellCount(rows) {
    if(rows.length == 0) return;
    var cellCount = rows[0].cells.length;

    rows.forEach(function (row) {
      if (row.cells.length != cellCount) {
        throw Errors.AstBuilderException.create("inconsistent cell count within the table", row.location);
      }
    });
  }

  function transformNode(node) {
    switch(node.ruleType) {
      case 'Step':
        var stepLine = node.getToken('StepLine');
        var stepArgument = node.getSingle('DataTable') || node.getSingle('DocString') || undefined;

        return {
          type: node.ruleType,
          location: getLocation(stepLine),
          keyword: stepLine.matchedKeyword,
          text: stepLine.matchedText,
          argument: stepArgument
        }
      case 'DocString':
        var separatorToken = node.getTokens('DocStringSeparator')[0];
        var contentType = separatorToken.matchedText.length > 0 ? separatorToken.matchedText : undefined;
        var lineTokens = node.getTokens('Other');
        var content = lineTokens.map(function (t) {return t.matchedText}).join("\n");

        var result = {
          type: node.ruleType,
          location: getLocation(separatorToken),
          content: content
        };
        // conditionally add this like this (needed to make tests pass on node 0.10 as well as 4.0)
        if(contentType) {
          result.contentType = contentType;
        }
        return result;
      case 'DataTable':
        var rows = getTableRows(node);
        return {
          type: node.ruleType,
          location: rows[0].location,
          rows: rows,
        }
      case 'Background':
        var backgroundLine = node.getToken('BackgroundLine');
        var description = getDescription(node);
        var steps = getSteps(node);

        return {
          type: node.ruleType,
          location: getLocation(backgroundLine),
          keyword: backgroundLine.matchedKeyword,
          name: backgroundLine.matchedText,
          description: description,
          steps: steps
        };
      case 'Scenario_Definition':
        var tags = getTags(node);
        var scenarioNode = node.getSingle('Scenario');
        if(scenarioNode) {
          var scenarioLine = scenarioNode.getToken('ScenarioLine');
          var description = getDescription(scenarioNode);
          var steps = getSteps(scenarioNode);

          return {
            type: scenarioNode.ruleType,
            tags: tags,
            location: getLocation(scenarioLine),
            keyword: scenarioLine.matchedKeyword,
            name: scenarioLine.matchedText,
            description: description,
            steps: steps
          };
        } else {
          var scenarioOutlineNode = node.getSingle('ScenarioOutline');
          if(!scenarioOutlineNode) throw new Error('Internal grammar error');

          var scenarioOutlineLine = scenarioOutlineNode.getToken('ScenarioOutlineLine');
          var description = getDescription(scenarioOutlineNode);
          var steps = getSteps(scenarioOutlineNode);
          var examples = scenarioOutlineNode.getItems('Examples_Definition');

          return {
            type: scenarioOutlineNode.ruleType,
            tags: tags,
            location: getLocation(scenarioOutlineLine),
            keyword: scenarioOutlineLine.matchedKeyword,
            name: scenarioOutlineLine.matchedText,
            description: description,
            steps: steps,
            examples: examples
          };
        }
      case 'Examples_Definition':
        var tags = getTags(node);
        var examplesNode = node.getSingle('Examples');
        var examplesLine = examplesNode.getToken('ExamplesLine');
        var description = getDescription(examplesNode);
        var exampleTable = examplesNode.getSingle('Examples_Table')

        return {
          type: examplesNode.ruleType,
          tags: tags,
          location: getLocation(examplesLine),
          keyword: examplesLine.matchedKeyword,
          name: examplesLine.matchedText,
          description: description,
          tableHeader: exampleTable != undefined ? exampleTable.tableHeader : undefined,
          tableBody: exampleTable != undefined ? exampleTable.tableBody : undefined
        };
      case 'Examples_Table':
        var rows = getTableRows(node)

        return {
          tableHeader: rows != undefined ? rows[0] : undefined,
          tableBody: rows != undefined ? rows.slice(1) : undefined
        };
      case 'Description':
        var lineTokens = node.getTokens('Other');
        // Trim trailing empty lines
        var end = lineTokens.length;
        while (end > 0 && lineTokens[end-1].line.trimmedLineText === '') {
            end--;
        }
        lineTokens = lineTokens.slice(0, end);

        var description = lineTokens.map(function (token) { return token.matchedText}).join("\n");
        return description;

      case 'Feature':
        var header = node.getSingle('Feature_Header');
        if(!header) return null;
        var tags = getTags(header);
        var featureLine = header.getToken('FeatureLine');
        if(!featureLine) return null;
        var children = []
        var background = node.getSingle('Background');
        if(background) children.push(background);
        children = children.concat(node.getItems('Scenario_Definition'));
        var description = getDescription(header);
        var language = featureLine.matchedGherkinDialect;

        return {
          type: node.ruleType,
          tags: tags,
          location: getLocation(featureLine),
          language: language,
          keyword: featureLine.matchedKeyword,
          name: featureLine.matchedText,
          description: description,
          children: children,
        };
      case 'GherkinDocument':
        var feature = node.getSingle('Feature');

        return {
          type: node.ruleType,
          feature: feature,
          comments: comments
        };
      default:
        return node;
    }
  }

};

},{"./ast_node":213,"./errors":216}],213:[function(require,module,exports){
function AstNode (ruleType) {
  this.ruleType = ruleType;
  this._subItems = {};
}

AstNode.prototype.add = function (ruleType, obj) {
  var items = this._subItems[ruleType];
  if(items === undefined) this._subItems[ruleType] = items = [];
  items.push(obj);
}

AstNode.prototype.getSingle = function (ruleType) {
  return (this._subItems[ruleType] || [])[0];
}

AstNode.prototype.getItems = function (ruleType) {
  return this._subItems[ruleType] || [];
}

AstNode.prototype.getToken = function (tokenType) {
  return this.getSingle(tokenType);
}

AstNode.prototype.getTokens = function (tokenType) {
  return this._subItems[tokenType] || [];
}

module.exports = AstNode;

},{}],214:[function(require,module,exports){
// https://mathiasbynens.be/notes/javascript-unicode
var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;

module.exports = function countSymbols(string) {
  return string.replace(regexAstralSymbols, '_').length;
}

},{}],215:[function(require,module,exports){
module.exports = require('./gherkin-languages.json');

},{"./gherkin-languages.json":218}],216:[function(require,module,exports){
var Errors = {};

[
  'ParserException',
  'CompositeParserException',
  'UnexpectedTokenException',
  'UnexpectedEOFException',
  'AstBuilderException',
  'NoSuchLanguageException'
].forEach(function (name) {

  function ErrorProto (message) {
    this.message = message || ('Unspecified ' + name);
    if (Error.captureStackTrace) {
      Error.captureStackTrace(this, arguments.callee);
    }
  }

  ErrorProto.prototype = Object.create(Error.prototype);
  ErrorProto.prototype.name = name;
  ErrorProto.prototype.constructor = ErrorProto;
  Errors[name] = ErrorProto;
});

Errors.CompositeParserException.create = function(errors) {
  var message = "Parser errors:\n" + errors.map(function (e) { return e.message; }).join("\n");
  var err = new Errors.CompositeParserException(message);
  err.errors = errors;
  return err;
};

Errors.UnexpectedTokenException.create = function(token, expectedTokenTypes, stateComment) {
  var message = "expected: " + expectedTokenTypes.join(', ') + ", got '" + token.getTokenValue().trim() + "'";
  var location = !token.location.column
    ? {line: token.location.line, column: token.line.indent + 1 }
    : token.location;
  return createError(Errors.UnexpectedEOFException, message, location);
};

Errors.UnexpectedEOFException.create = function(token, expectedTokenTypes, stateComment) {
  var message = "unexpected end of file, expected: " + expectedTokenTypes.join(', ');
  return createError(Errors.UnexpectedTokenException, message, token.location);
};

Errors.AstBuilderException.create = function(message, location) {
  return createError(Errors.AstBuilderException, message, location);
};

Errors.NoSuchLanguageException.create = function(language, location) {
  var message = "Language not supported: " + language;
  return createError(Errors.NoSuchLanguageException, message, location);
};

function createError(Ctor, message, location) {
  var fullMessage = "(" + location.line + ":" + location.column + "): " + message;
  var error = new Ctor(fullMessage);
  error.location = location;
  return error;
}

module.exports = Errors;

},{}],217:[function(require,module,exports){
var Parser = require('./parser')
var Compiler = require('./pickles/compiler')

var compiler = new Compiler()
var parser = new Parser()
parser.stopAtFirstError = false

function generateEvents(data, uri, types, language) {
  types = Object.assign({
    'source': true,
    'gherkin-document': true,
    'pickle': true
  }, types || {})

  result = []

  try {
    if (types['source']) {
      result.push({
        type: 'source',
        uri: uri,
        data: data,
        media: {
          encoding: 'utf-8',
          type: 'text/x.cucumber.gherkin+plain'
        }
      })
    }

    if (!types['gherkin-document'] && !types['pickle'])
      return result

    var gherkinDocument = parser.parse(data, language)

    if (types['gherkin-document']) {
      result.push({
        type: 'gherkin-document',
        uri: uri,
        document: gherkinDocument
      })
    }

    if (types['pickle']) {
      var pickles = compiler.compile(gherkinDocument)
      for (var p in pickles) {
        result.push({
          type: 'pickle',
          uri: uri,
          pickle: pickles[p]
        })
      }
    }
  } catch (err) {
    var errors = err.errors || [err]
    for (var e in errors) {
      result.push({
        type: "attachment",
        source: {
          uri: uri,
          start: {
            line: errors[e].location.line,
            column: errors[e].location.column
          }
        },
        data: errors[e].message,
        media: {
          encoding: "utf-8",
          type: "text/x.cucumber.stacktrace+plain"
        }
      })
    }
  }
  return result
}

module.exports = generateEvents

},{"./parser":220,"./pickles/compiler":221}],218:[function(require,module,exports){
module.exports={
  "af": {
    "and": [
      "* ",
      "En "
    ],
    "background": [
      "Agtergrond"
    ],
    "but": [
      "* ",
      "Maar "
    ],
    "examples": [
      "Voorbeelde"
    ],
    "feature": [
      "Funksie",
      "Besigheid Behoefte",
      "Vermoë"
    ],
    "given": [
      "* ",
      "Gegewe "
    ],
    "name": "Afrikaans",
    "native": "Afrikaans",
    "scenario": [
      "Situasie"
    ],
    "scenarioOutline": [
      "Situasie Uiteensetting"
    ],
    "then": [
      "* ",
      "Dan "
    ],
    "when": [
      "* ",
      "Wanneer "
    ]
  },
  "am": {
    "and": [
      "* ",
      "Եվ "
    ],
    "background": [
      "Կոնտեքստ"
    ],
    "but": [
      "* ",
      "Բայց "
    ],
    "examples": [
      "Օրինակներ"
    ],
    "feature": [
      "Ֆունկցիոնալություն",
      "Հատկություն"
    ],
    "given": [
      "* ",
      "Դիցուք "
    ],
    "name": "Armenian",
    "native": "հայերեն",
    "scenario": [
      "Սցենար"
    ],
    "scenarioOutline": [
      "Սցենարի կառուցվացքը"
    ],
    "then": [
      "* ",
      "Ապա "
    ],
    "when": [
      "* ",
      "Եթե ",
      "Երբ "
    ]
  },
  "ar": {
    "and": [
      "* ",
      "و "
    ],
    "background": [
      "الخلفية"
    ],
    "but": [
      "* ",
      "لكن "
    ],
    "examples": [
      "امثلة"
    ],
    "feature": [
      "خاصية"
    ],
    "given": [
      "* ",
      "بفرض "
    ],
    "name": "Arabic",
    "native": "العربية",
    "scenario": [
      "سيناريو"
    ],
    "scenarioOutline": [
      "سيناريو مخطط"
    ],
    "then": [
      "* ",
      "اذاً ",
      "ثم "
    ],
    "when": [
      "* ",
      "متى ",
      "عندما "
    ]
  },
  "ast": {
    "and": [
      "* ",
      "Y ",
      "Ya "
    ],
    "background": [
      "Antecedentes"
    ],
    "but": [
      "* ",
      "Peru "
    ],
    "examples": [
      "Exemplos"
    ],
    "feature": [
      "Carauterística"
    ],
    "given": [
      "* ",
      "Dáu ",
      "Dada ",
      "Daos ",
      "Daes "
    ],
    "name": "Asturian",
    "native": "asturianu",
    "scenario": [
      "Casu"
    ],
    "scenarioOutline": [
      "Esbozu del casu"
    ],
    "then": [
      "* ",
      "Entós "
    ],
    "when": [
      "* ",
      "Cuando "
    ]
  },
  "az": {
    "and": [
      "* ",
      "Və ",
      "Həm "
    ],
    "background": [
      "Keçmiş",
      "Kontekst"
    ],
    "but": [
      "* ",
      "Amma ",
      "Ancaq "
    ],
    "examples": [
      "Nümunələr"
    ],
    "feature": [
      "Özəllik"
    ],
    "given": [
      "* ",
      "Tutaq ki ",
      "Verilir "
    ],
    "name": "Azerbaijani",
    "native": "Azərbaycanca",
    "scenario": [
      "Ssenari"
    ],
    "scenarioOutline": [
      "Ssenarinin strukturu"
    ],
    "then": [
      "* ",
      "O halda "
    ],
    "when": [
      "* ",
      "Əgər ",
      "Nə vaxt ki "
    ]
  },
  "bg": {
    "and": [
      "* ",
      "И "
    ],
    "background": [
      "Предистория"
    ],
    "but": [
      "* ",
      "Но "
    ],
    "examples": [
      "Примери"
    ],
    "feature": [
      "Функционалност"
    ],
    "given": [
      "* ",
      "Дадено "
    ],
    "name": "Bulgarian",
    "native": "български",
    "scenario": [
      "Сценарий"
    ],
    "scenarioOutline": [
      "Рамка на сценарий"
    ],
    "then": [
      "* ",
      "То "
    ],
    "when": [
      "* ",
      "Когато "
    ]
  },
  "bm": {
    "and": [
      "* ",
      "Dan "
    ],
    "background": [
      "Latar Belakang"
    ],
    "but": [
      "* ",
      "Tetapi ",
      "Tapi "
    ],
    "examples": [
      "Contoh"
    ],
    "feature": [
      "Fungsi"
    ],
    "given": [
      "* ",
      "Diberi ",
      "Bagi "
    ],
    "name": "Malay",
    "native": "Bahasa Melayu",
    "scenario": [
      "Senario",
      "Situasi",
      "Keadaan"
    ],
    "scenarioOutline": [
      "Kerangka Senario",
      "Kerangka Situasi",
      "Kerangka Keadaan",
      "Garis Panduan Senario"
    ],
    "then": [
      "* ",
      "Maka ",
      "Kemudian "
    ],
    "when": [
      "* ",
      "Apabila "
    ]
  },
  "bs": {
    "and": [
      "* ",
      "I ",
      "A "
    ],
    "background": [
      "Pozadina"
    ],
    "but": [
      "* ",
      "Ali "
    ],
    "examples": [
      "Primjeri"
    ],
    "feature": [
      "Karakteristika"
    ],
    "given": [
      "* ",
      "Dato "
    ],
    "name": "Bosnian",
    "native": "Bosanski",
    "scenario": [
      "Scenariju",
      "Scenario"
    ],
    "scenarioOutline": [
      "Scenariju-obris",
      "Scenario-outline"
    ],
    "then": [
      "* ",
      "Zatim "
    ],
    "when": [
      "* ",
      "Kada "
    ]
  },
  "ca": {
    "and": [
      "* ",
      "I "
    ],
    "background": [
      "Rerefons",
      "Antecedents"
    ],
    "but": [
      "* ",
      "Però "
    ],
    "examples": [
      "Exemples"
    ],
    "feature": [
      "Característica",
      "Funcionalitat"
    ],
    "given": [
      "* ",
      "Donat ",
      "Donada ",
      "Atès ",
      "Atesa "
    ],
    "name": "Catalan",
    "native": "català",
    "scenario": [
      "Escenari"
    ],
    "scenarioOutline": [
      "Esquema de l'escenari"
    ],
    "then": [
      "* ",
      "Aleshores ",
      "Cal "
    ],
    "when": [
      "* ",
      "Quan "
    ]
  },
  "cs": {
    "and": [
      "* ",
      "A také ",
      "A "
    ],
    "background": [
      "Pozadí",
      "Kontext"
    ],
    "but": [
      "* ",
      "Ale "
    ],
    "examples": [
      "Příklady"
    ],
    "feature": [
      "Požadavek"
    ],
    "given": [
      "* ",
      "Pokud ",
      "Za předpokladu "
    ],
    "name": "Czech",
    "native": "Česky",
    "scenario": [
      "Scénář"
    ],
    "scenarioOutline": [
      "Náčrt Scénáře",
      "Osnova scénáře"
    ],
    "then": [
      "* ",
      "Pak "
    ],
    "when": [
      "* ",
      "Když "
    ]
  },
  "cy-GB": {
    "and": [
      "* ",
      "A "
    ],
    "background": [
      "Cefndir"
    ],
    "but": [
      "* ",
      "Ond "
    ],
    "examples": [
      "Enghreifftiau"
    ],
    "feature": [
      "Arwedd"
    ],
    "given": [
      "* ",
      "Anrhegedig a "
    ],
    "name": "Welsh",
    "native": "Cymraeg",
    "scenario": [
      "Scenario"
    ],
    "scenarioOutline": [
      "Scenario Amlinellol"
    ],
    "then": [
      "* ",
      "Yna "
    ],
    "when": [
      "* ",
      "Pryd "
    ]
  },
  "da": {
    "and": [
      "* ",
      "Og "
    ],
    "background": [
      "Baggrund"
    ],
    "but": [
      "* ",
      "Men "
    ],
    "examples": [
      "Eksempler"
    ],
    "feature": [
      "Egenskab"
    ],
    "given": [
      "* ",
      "Givet "
    ],
    "name": "Danish",
    "native": "dansk",
    "scenario": [
      "Scenarie"
    ],
    "scenarioOutline": [
      "Abstrakt Scenario"
    ],
    "then": [
      "* ",
      "Så "
    ],
    "when": [
      "* ",
      "Når "
    ]
  },
  "de": {
    "and": [
      "* ",
      "Und "
    ],
    "background": [
      "Grundlage"
    ],
    "but": [
      "* ",
      "Aber "
    ],
    "examples": [
      "Beispiele"
    ],
    "feature": [
      "Funktionalität"
    ],
    "given": [
      "* ",
      "Angenommen ",
      "Gegeben sei ",
      "Gegeben seien "
    ],
    "name": "German",
    "native": "Deutsch",
    "scenario": [
      "Szenario"
    ],
    "scenarioOutline": [
      "Szenariogrundriss"
    ],
    "then": [
      "* ",
      "Dann "
    ],
    "when": [
      "* ",
      "Wenn "
    ]
  },
  "el": {
    "and": [
      "* ",
      "Και "
    ],
    "background": [
      "Υπόβαθρο"
    ],
    "but": [
      "* ",
      "Αλλά "
    ],
    "examples": [
      "Παραδείγματα",
      "Σενάρια"
    ],
    "feature": [
      "Δυνατότητα",
      "Λειτουργία"
    ],
    "given": [
      "* ",
      "Δεδομένου "
    ],
    "name": "Greek",
    "native": "Ελληνικά",
    "scenario": [
      "Σενάριο"
    ],
    "scenarioOutline": [
      "Περιγραφή Σεναρίου",
      "Περίγραμμα Σεναρίου"
    ],
    "then": [
      "* ",
      "Τότε "
    ],
    "when": [
      "* ",
      "Όταν "
    ]
  },
  "em": {
    "and": [
      "* ",
      "😂"
    ],
    "background": [
      "💤"
    ],
    "but": [
      "* ",
      "😔"
    ],
    "examples": [
      "📓"
    ],
    "feature": [
      "📚"
    ],
    "given": [
      "* ",
      "😐"
    ],
    "name": "Emoji",
    "native": "😀",
    "scenario": [
      "📕"
    ],
    "scenarioOutline": [
      "📖"
    ],
    "then": [
      "* ",
      "🙏"
    ],
    "when": [
      "* ",
      "🎬"
    ]
  },
  "en": {
    "and": [
      "* ",
      "And "
    ],
    "background": [
      "Background"
    ],
    "but": [
      "* ",
      "But "
    ],
    "examples": [
      "Examples",
      "Scenarios"
    ],
    "feature": [
      "Feature",
      "Business Need",
      "Ability"
    ],
    "given": [
      "* ",
      "Given "
    ],
    "name": "English",
    "native": "English",
    "scenario": [
      "Scenario"
    ],
    "scenarioOutline": [
      "Scenario Outline",
      "Scenario Template"
    ],
    "then": [
      "* ",
      "Then "
    ],
    "when": [
      "* ",
      "When "
    ]
  },
  "en-Scouse": {
    "and": [
      "* ",
      "An "
    ],
    "background": [
      "Dis is what went down"
    ],
    "but": [
      "* ",
      "Buh "
    ],
    "examples": [
      "Examples"
    ],
    "feature": [
      "Feature"
    ],
    "given": [
      "* ",
      "Givun ",
      "Youse know when youse got "
    ],
    "name": "Scouse",
    "native": "Scouse",
    "scenario": [
      "The thing of it is"
    ],
    "scenarioOutline": [
      "Wharrimean is"
    ],
    "then": [
      "* ",
      "Dun ",
      "Den youse gotta "
    ],
    "when": [
      "* ",
      "Wun ",
      "Youse know like when "
    ]
  },
  "en-au": {
    "and": [
      "* ",
      "Too right "
    ],
    "background": [
      "First off"
    ],
    "but": [
      "* ",
      "Yeah nah "
    ],
    "examples": [
      "You'll wanna"
    ],
    "feature": [
      "Pretty much"
    ],
    "given": [
      "* ",
      "Y'know "
    ],
    "name": "Australian",
    "native": "Australian",
    "scenario": [
      "Awww, look mate"
    ],
    "scenarioOutline": [
      "Reckon it's like"
    ],
    "then": [
      "* ",
      "But at the end of the day I reckon "
    ],
    "when": [
      "* ",
      "It's just unbelievable "
    ]
  },
  "en-lol": {
    "and": [
      "* ",
      "AN "
    ],
    "background": [
      "B4"
    ],
    "but": [
      "* ",
      "BUT "
    ],
    "examples": [
      "EXAMPLZ"
    ],
    "feature": [
      "OH HAI"
    ],
    "given": [
      "* ",
      "I CAN HAZ "
    ],
    "name": "LOLCAT",
    "native": "LOLCAT",
    "scenario": [
      "MISHUN"
    ],
    "scenarioOutline": [
      "MISHUN SRSLY"
    ],
    "then": [
      "* ",
      "DEN "
    ],
    "when": [
      "* ",
      "WEN "
    ]
  },
  "en-old": {
    "and": [
      "* ",
      "Ond ",
      "7 "
    ],
    "background": [
      "Aer",
      "Ær"
    ],
    "but": [
      "* ",
      "Ac "
    ],
    "examples": [
      "Se the",
      "Se þe",
      "Se ðe"
    ],
    "feature": [
      "Hwaet",
      "Hwæt"
    ],
    "given": [
      "* ",
      "Thurh ",
      "Þurh ",
      "Ðurh "
    ],
    "name": "Old English",
    "native": "Englisc",
    "scenario": [
      "Swa"
    ],
    "scenarioOutline": [
      "Swa hwaer swa",
      "Swa hwær swa"
    ],
    "then": [
      "* ",
      "Tha ",
      "Þa ",
      "Ða ",
      "Tha the ",
      "Þa þe ",
      "Ða ðe "
    ],
    "when": [
      "* ",
      "Tha ",
      "Þa ",
      "Ða "
    ]
  },
  "en-pirate": {
    "and": [
      "* ",
      "Aye "
    ],
    "background": [
      "Yo-ho-ho"
    ],
    "but": [
      "* ",
      "Avast! "
    ],
    "examples": [
      "Dead men tell no tales"
    ],
    "feature": [
      "Ahoy matey!"
    ],
    "given": [
      "* ",
      "Gangway! "
    ],
    "name": "Pirate",
    "native": "Pirate",
    "scenario": [
      "Heave to"
    ],
    "scenarioOutline": [
      "Shiver me timbers"
    ],
    "then": [
      "* ",
      "Let go and haul "
    ],
    "when": [
      "* ",
      "Blimey! "
    ]
  },
  "eo": {
    "and": [
      "* ",
      "Kaj "
    ],
    "background": [
      "Fono"
    ],
    "but": [
      "* ",
      "Sed "
    ],
    "examples": [
      "Ekzemploj"
    ],
    "feature": [
      "Trajto"
    ],
    "given": [
      "* ",
      "Donitaĵo ",
      "Komence "
    ],
    "name": "Esperanto",
    "native": "Esperanto",
    "scenario": [
      "Scenaro",
      "Kazo"
    ],
    "scenarioOutline": [
      "Konturo de la scenaro",
      "Skizo",
      "Kazo-skizo"
    ],
    "then": [
      "* ",
      "Do "
    ],
    "when": [
      "* ",
      "Se "
    ]
  },
  "es": {
    "and": [
      "* ",
      "Y ",
      "E "
    ],
    "background": [
      "Antecedentes"
    ],
    "but": [
      "* ",
      "Pero "
    ],
    "examples": [
      "Ejemplos"
    ],
    "feature": [
      "Característica"
    ],
    "given": [
      "* ",
      "Dado ",
      "Dada ",
      "Dados ",
      "Dadas "
    ],
    "name": "Spanish",
    "native": "español",
    "scenario": [
      "Escenario"
    ],
    "scenarioOutline": [
      "Esquema del escenario"
    ],
    "then": [
      "* ",
      "Entonces "
    ],
    "when": [
      "* ",
      "Cuando "
    ]
  },
  "et": {
    "and": [
      "* ",
      "Ja "
    ],
    "background": [
      "Taust"
    ],
    "but": [
      "* ",
      "Kuid "
    ],
    "examples": [
      "Juhtumid"
    ],
    "feature": [
      "Omadus"
    ],
    "given": [
      "* ",
      "Eeldades "
    ],
    "name": "Estonian",
    "native": "eesti keel",
    "scenario": [
      "Stsenaarium"
    ],
    "scenarioOutline": [
      "Raamstsenaarium"
    ],
    "then": [
      "* ",
      "Siis "
    ],
    "when": [
      "* ",
      "Kui "
    ]
  },
  "fa": {
    "and": [
      "* ",
      "و "
    ],
    "background": [
      "زمینه"
    ],
    "but": [
      "* ",
      "اما "
    ],
    "examples": [
      "نمونه ها"
    ],
    "feature": [
      "وِیژگی"
    ],
    "given": [
      "* ",
      "با فرض "
    ],
    "name": "Persian",
    "native": "فارسی",
    "scenario": [
      "سناریو"
    ],
    "scenarioOutline": [
      "الگوی سناریو"
    ],
    "then": [
      "* ",
      "آنگاه "
    ],
    "when": [
      "* ",
      "هنگامی "
    ]
  },
  "fi": {
    "and": [
      "* ",
      "Ja "
    ],
    "background": [
      "Tausta"
    ],
    "but": [
      "* ",
      "Mutta "
    ],
    "examples": [
      "Tapaukset"
    ],
    "feature": [
      "Ominaisuus"
    ],
    "given": [
      "* ",
      "Oletetaan "
    ],
    "name": "Finnish",
    "native": "suomi",
    "scenario": [
      "Tapaus"
    ],
    "scenarioOutline": [
      "Tapausaihio"
    ],
    "then": [
      "* ",
      "Niin "
    ],
    "when": [
      "* ",
      "Kun "
    ]
  },
  "fr": {
    "and": [
      "* ",
      "Et que ",
      "Et qu'",
      "Et "
    ],
    "background": [
      "Contexte"
    ],
    "but": [
      "* ",
      "Mais que ",
      "Mais qu'",
      "Mais "
    ],
    "examples": [
      "Exemples"
    ],
    "feature": [
      "Fonctionnalité"
    ],
    "given": [
      "* ",
      "Soit ",
      "Etant donné que ",
      "Etant donné qu'",
      "Etant donné ",
      "Etant donnée ",
      "Etant donnés ",
      "Etant données ",
      "Étant donné que ",
      "Étant donné qu'",
      "Étant donné ",
      "Étant donnée ",
      "Étant donnés ",
      "Étant données "
    ],
    "name": "French",
    "native": "français",
    "scenario": [
      "Scénario"
    ],
    "scenarioOutline": [
      "Plan du scénario",
      "Plan du Scénario"
    ],
    "then": [
      "* ",
      "Alors "
    ],
    "when": [
      "* ",
      "Quand ",
      "Lorsque ",
      "Lorsqu'"
    ]
  },
  "ga": {
    "and": [
      "* ",
      "Agus"
    ],
    "background": [
      "Cúlra"
    ],
    "but": [
      "* ",
      "Ach"
    ],
    "examples": [
      "Samplaí"
    ],
    "feature": [
      "Gné"
    ],
    "given": [
      "* ",
      "Cuir i gcás go",
      "Cuir i gcás nach",
      "Cuir i gcás gur",
      "Cuir i gcás nár"
    ],
    "name": "Irish",
    "native": "Gaeilge",
    "scenario": [
      "Cás"
    ],
    "scenarioOutline": [
      "Cás Achomair"
    ],
    "then": [
      "* ",
      "Ansin"
    ],
    "when": [
      "* ",
      "Nuair a",
      "Nuair nach",
      "Nuair ba",
      "Nuair nár"
    ]
  },
  "gj": {
    "and": [
      "* ",
      "અને "
    ],
    "background": [
      "બેકગ્રાઉન્ડ"
    ],
    "but": [
      "* ",
      "પણ "
    ],
    "examples": [
      "ઉદાહરણો"
    ],
    "feature": [
      "લક્ષણ",
      "વ્યાપાર જરૂર",
      "ક્ષમતા"
    ],
    "given": [
      "* ",
      "આપેલ છે "
    ],
    "name": "Gujarati",
    "native": "ગુજરાતી",
    "scenario": [
      "સ્થિતિ"
    ],
    "scenarioOutline": [
      "પરિદ્દશ્ય રૂપરેખા",
      "પરિદ્દશ્ય ઢાંચો"
    ],
    "then": [
      "* ",
      "પછી "
    ],
    "when": [
      "* ",
      "ક્યારે "
    ]
  },
  "gl": {
    "and": [
      "* ",
      "E "
    ],
    "background": [
      "Contexto"
    ],
    "but": [
      "* ",
      "Mais ",
      "Pero "
    ],
    "examples": [
      "Exemplos"
    ],
    "feature": [
      "Característica"
    ],
    "given": [
      "* ",
      "Dado ",
      "Dada ",
      "Dados ",
      "Dadas "
    ],
    "name": "Galician",
    "native": "galego",
    "scenario": [
      "Escenario"
    ],
    "scenarioOutline": [
      "Esbozo do escenario"
    ],
    "then": [
      "* ",
      "Entón ",
      "Logo "
    ],
    "when": [
      "* ",
      "Cando "
    ]
  },
  "he": {
    "and": [
      "* ",
      "וגם "
    ],
    "background": [
      "רקע"
    ],
    "but": [
      "* ",
      "אבל "
    ],
    "examples": [
      "דוגמאות"
    ],
    "feature": [
      "תכונה"
    ],
    "given": [
      "* ",
      "בהינתן "
    ],
    "name": "Hebrew",
    "native": "עברית",
    "scenario": [
      "תרחיש"
    ],
    "scenarioOutline": [
      "תבנית תרחיש"
    ],
    "then": [
      "* ",
      "אז ",
      "אזי "
    ],
    "when": [
      "* ",
      "כאשר "
    ]
  },
  "hi": {
    "and": [
      "* ",
      "और ",
      "तथा "
    ],
    "background": [
      "पृष्ठभूमि"
    ],
    "but": [
      "* ",
      "पर ",
      "परन्तु ",
      "किन्तु "
    ],
    "examples": [
      "उदाहरण"
    ],
    "feature": [
      "रूप लेख"
    ],
    "given": [
      "* ",
      "अगर ",
      "यदि ",
      "चूंकि "
    ],
    "name": "Hindi",
    "native": "हिंदी",
    "scenario": [
      "परिदृश्य"
    ],
    "scenarioOutline": [
      "परिदृश्य रूपरेखा"
    ],
    "then": [
      "* ",
      "तब ",
      "तदा "
    ],
    "when": [
      "* ",
      "जब ",
      "कदा "
    ]
  },
  "hr": {
    "and": [
      "* ",
      "I "
    ],
    "background": [
      "Pozadina"
    ],
    "but": [
      "* ",
      "Ali "
    ],
    "examples": [
      "Primjeri",
      "Scenariji"
    ],
    "feature": [
      "Osobina",
      "Mogućnost",
      "Mogucnost"
    ],
    "given": [
      "* ",
      "Zadan ",
      "Zadani ",
      "Zadano "
    ],
    "name": "Croatian",
    "native": "hrvatski",
    "scenario": [
      "Scenarij"
    ],
    "scenarioOutline": [
      "Skica",
      "Koncept"
    ],
    "then": [
      "* ",
      "Onda "
    ],
    "when": [
      "* ",
      "Kada ",
      "Kad "
    ]
  },
  "ht": {
    "and": [
      "* ",
      "Ak ",
      "Epi ",
      "E "
    ],
    "background": [
      "Kontèks",
      "Istorik"
    ],
    "but": [
      "* ",
      "Men "
    ],
    "examples": [
      "Egzanp"
    ],
    "feature": [
      "Karakteristik",
      "Mak",
      "Fonksyonalite"
    ],
    "given": [
      "* ",
      "Sipoze ",
      "Sipoze ke ",
      "Sipoze Ke "
    ],
    "name": "Creole",
    "native": "kreyòl",
    "scenario": [
      "Senaryo"
    ],
    "scenarioOutline": [
      "Plan senaryo",
      "Plan Senaryo",
      "Senaryo deskripsyon",
      "Senaryo Deskripsyon",
      "Dyagram senaryo",
      "Dyagram Senaryo"
    ],
    "then": [
      "* ",
      "Lè sa a ",
      "Le sa a "
    ],
    "when": [
      "* ",
      "Lè ",
      "Le "
    ]
  },
  "hu": {
    "and": [
      "* ",
      "És "
    ],
    "background": [
      "Háttér"
    ],
    "but": [
      "* ",
      "De "
    ],
    "examples": [
      "Példák"
    ],
    "feature": [
      "Jellemző"
    ],
    "given": [
      "* ",
      "Amennyiben ",
      "Adott "
    ],
    "name": "Hungarian",
    "native": "magyar",
    "scenario": [
      "Forgatókönyv"
    ],
    "scenarioOutline": [
      "Forgatókönyv vázlat"
    ],
    "then": [
      "* ",
      "Akkor "
    ],
    "when": [
      "* ",
      "Majd ",
      "Ha ",
      "Amikor "
    ]
  },
  "id": {
    "and": [
      "* ",
      "Dan "
    ],
    "background": [
      "Dasar"
    ],
    "but": [
      "* ",
      "Tapi "
    ],
    "examples": [
      "Contoh"
    ],
    "feature": [
      "Fitur"
    ],
    "given": [
      "* ",
      "Dengan "
    ],
    "name": "Indonesian",
    "native": "Bahasa Indonesia",
    "scenario": [
      "Skenario"
    ],
    "scenarioOutline": [
      "Skenario konsep"
    ],
    "then": [
      "* ",
      "Maka "
    ],
    "when": [
      "* ",
      "Ketika "
    ]
  },
  "is": {
    "and": [
      "* ",
      "Og "
    ],
    "background": [
      "Bakgrunnur"
    ],
    "but": [
      "* ",
      "En "
    ],
    "examples": [
      "Dæmi",
      "Atburðarásir"
    ],
    "feature": [
      "Eiginleiki"
    ],
    "given": [
      "* ",
      "Ef "
    ],
    "name": "Icelandic",
    "native": "Íslenska",
    "scenario": [
      "Atburðarás"
    ],
    "scenarioOutline": [
      "Lýsing Atburðarásar",
      "Lýsing Dæma"
    ],
    "then": [
      "* ",
      "Þá "
    ],
    "when": [
      "* ",
      "Þegar "
    ]
  },
  "it": {
    "and": [
      "* ",
      "E "
    ],
    "background": [
      "Contesto"
    ],
    "but": [
      "* ",
      "Ma "
    ],
    "examples": [
      "Esempi"
    ],
    "feature": [
      "Funzionalità"
    ],
    "given": [
      "* ",
      "Dato ",
      "Data ",
      "Dati ",
      "Date "
    ],
    "name": "Italian",
    "native": "italiano",
    "scenario": [
      "Scenario"
    ],
    "scenarioOutline": [
      "Schema dello scenario"
    ],
    "then": [
      "* ",
      "Allora "
    ],
    "when": [
      "* ",
      "Quando "
    ]
  },
  "ja": {
    "and": [
      "* ",
      "かつ"
    ],
    "background": [
      "背景"
    ],
    "but": [
      "* ",
      "しかし",
      "但し",
      "ただし"
    ],
    "examples": [
      "例",
      "サンプル"
    ],
    "feature": [
      "フィーチャ",
      "機能"
    ],
    "given": [
      "* ",
      "前提"
    ],
    "name": "Japanese",
    "native": "日本語",
    "scenario": [
      "シナリオ"
    ],
    "scenarioOutline": [
      "シナリオアウトライン",
      "シナリオテンプレート",
      "テンプレ",
      "シナリオテンプレ"
    ],
    "then": [
      "* ",
      "ならば"
    ],
    "when": [
      "* ",
      "もし"
    ]
  },
  "jv": {
    "and": [
      "* ",
      "Lan "
    ],
    "background": [
      "Dasar"
    ],
    "but": [
      "* ",
      "Tapi ",
      "Nanging ",
      "Ananging "
    ],
    "examples": [
      "Conto",
      "Contone"
    ],
    "feature": [
      "Fitur"
    ],
    "given": [
      "* ",
      "Nalika ",
      "Nalikaning "
    ],
    "name": "Javanese",
    "native": "Basa Jawa",
    "scenario": [
      "Skenario"
    ],
    "scenarioOutline": [
      "Konsep skenario"
    ],
    "then": [
      "* ",
      "Njuk ",
      "Banjur "
    ],
    "when": [
      "* ",
      "Manawa ",
      "Menawa "
    ]
  },
  "ka": {
    "and": [
      "* ",
      "და"
    ],
    "background": [
      "კონტექსტი"
    ],
    "but": [
      "* ",
      "მაგ­რამ"
    ],
    "examples": [
      "მაგალითები"
    ],
    "feature": [
      "თვისება"
    ],
    "given": [
      "* ",
      "მოცემული"
    ],
    "name": "Georgian",
    "native": "ქართველი",
    "scenario": [
      "სცენარის"
    ],
    "scenarioOutline": [
      "სცენარის ნიმუში"
    ],
    "then": [
      "* ",
      "მაშინ"
    ],
    "when": [
      "* ",
      "როდესაც"
    ]
  },
  "kn": {
    "and": [
      "* ",
      "ಮತ್ತು "
    ],
    "background": [
      "ಹಿನ್ನೆಲೆ"
    ],
    "but": [
      "* ",
      "ಆದರೆ "
    ],
    "examples": [
      "ಉದಾಹರಣೆಗಳು"
    ],
    "feature": [
      "ಹೆಚ್ಚಳ"
    ],
    "given": [
      "* ",
      "ನೀಡಿದ "
    ],
    "name": "Kannada",
    "native": "ಕನ್ನಡ",
    "scenario": [
      "ಕಥಾಸಾರಾಂಶ"
    ],
    "scenarioOutline": [
      "ವಿವರಣೆ"
    ],
    "then": [
      "* ",
      "ನಂತರ "
    ],
    "when": [
      "* ",
      "ಸ್ಥಿತಿಯನ್ನು "
    ]
  },
  "ko": {
    "and": [
      "* ",
      "그리고"
    ],
    "background": [
      "배경"
    ],
    "but": [
      "* ",
      "하지만",
      "단"
    ],
    "examples": [
      "예"
    ],
    "feature": [
      "기능"
    ],
    "given": [
      "* ",
      "조건",
      "먼저"
    ],
    "name": "Korean",
    "native": "한국어",
    "scenario": [
      "시나리오"
    ],
    "scenarioOutline": [
      "시나리오 개요"
    ],
    "then": [
      "* ",
      "그러면"
    ],
    "when": [
      "* ",
      "만일",
      "만약"
    ]
  },
  "lt": {
    "and": [
      "* ",
      "Ir "
    ],
    "background": [
      "Kontekstas"
    ],
    "but": [
      "* ",
      "Bet "
    ],
    "examples": [
      "Pavyzdžiai",
      "Scenarijai",
      "Variantai"
    ],
    "feature": [
      "Savybė"
    ],
    "given": [
      "* ",
      "Duota "
    ],
    "name": "Lithuanian",
    "native": "lietuvių kalba",
    "scenario": [
      "Scenarijus"
    ],
    "scenarioOutline": [
      "Scenarijaus šablonas"
    ],
    "then": [
      "* ",
      "Tada "
    ],
    "when": [
      "* ",
      "Kai "
    ]
  },
  "lu": {
    "and": [
      "* ",
      "an ",
      "a "
    ],
    "background": [
      "Hannergrond"
    ],
    "but": [
      "* ",
      "awer ",
      "mä "
    ],
    "examples": [
      "Beispiller"
    ],
    "feature": [
      "Funktionalitéit"
    ],
    "given": [
      "* ",
      "ugeholl "
    ],
    "name": "Luxemburgish",
    "native": "Lëtzebuergesch",
    "scenario": [
      "Szenario"
    ],
    "scenarioOutline": [
      "Plang vum Szenario"
    ],
    "then": [
      "* ",
      "dann "
    ],
    "when": [
      "* ",
      "wann "
    ]
  },
  "lv": {
    "and": [
      "* ",
      "Un "
    ],
    "background": [
      "Konteksts",
      "Situācija"
    ],
    "but": [
      "* ",
      "Bet "
    ],
    "examples": [
      "Piemēri",
      "Paraugs"
    ],
    "feature": [
      "Funkcionalitāte",
      "Fīča"
    ],
    "given": [
      "* ",
      "Kad "
    ],
    "name": "Latvian",
    "native": "latviešu",
    "scenario": [
      "Scenārijs"
    ],
    "scenarioOutline": [
      "Scenārijs pēc parauga"
    ],
    "then": [
      "* ",
      "Tad "
    ],
    "when": [
      "* ",
      "Ja "
    ]
  },
  "mk-Cyrl": {
    "and": [
      "* ",
      "И "
    ],
    "background": [
      "Контекст",
      "Содржина"
    ],
    "but": [
      "* ",
      "Но "
    ],
    "examples": [
      "Примери",
      "Сценарија"
    ],
    "feature": [
      "Функционалност",
      "Бизнис потреба",
      "Можност"
    ],
    "given": [
      "* ",
      "Дадено ",
      "Дадена "
    ],
    "name": "Macedonian",
    "native": "Македонски",
    "scenario": [
      "Сценарио",
      "На пример"
    ],
    "scenarioOutline": [
      "Преглед на сценарија",
      "Скица",
      "Концепт"
    ],
    "then": [
      "* ",
      "Тогаш "
    ],
    "when": [
      "* ",
      "Кога "
    ]
  },
  "mk-Latn": {
    "and": [
      "* ",
      "I "
    ],
    "background": [
      "Kontekst",
      "Sodrzhina"
    ],
    "but": [
      "* ",
      "No "
    ],
    "examples": [
      "Primeri",
      "Scenaria"
    ],
    "feature": [
      "Funkcionalnost",
      "Biznis potreba",
      "Mozhnost"
    ],
    "given": [
      "* ",
      "Dadeno ",
      "Dadena "
    ],
    "name": "Macedonian (Latin)",
    "native": "Makedonski (Latinica)",
    "scenario": [
      "Scenario",
      "Na primer"
    ],
    "scenarioOutline": [
      "Pregled na scenarija",
      "Skica",
      "Koncept"
    ],
    "then": [
      "* ",
      "Togash "
    ],
    "when": [
      "* ",
      "Koga "
    ]
  },
  "mn": {
    "and": [
      "* ",
      "Мөн ",
      "Тэгээд "
    ],
    "background": [
      "Агуулга"
    ],
    "but": [
      "* ",
      "Гэхдээ ",
      "Харин "
    ],
    "examples": [
      "Тухайлбал"
    ],
    "feature": [
      "Функц",
      "Функционал"
    ],
    "given": [
      "* ",
      "Өгөгдсөн нь ",
      "Анх "
    ],
    "name": "Mongolian",
    "native": "монгол",
    "scenario": [
      "Сценар"
    ],
    "scenarioOutline": [
      "Сценарын төлөвлөгөө"
    ],
    "then": [
      "* ",
      "Тэгэхэд ",
      "Үүний дараа "
    ],
    "when": [
      "* ",
      "Хэрэв "
    ]
  },
  "nl": {
    "and": [
      "* ",
      "En "
    ],
    "background": [
      "Achtergrond"
    ],
    "but": [
      "* ",
      "Maar "
    ],
    "examples": [
      "Voorbeelden"
    ],
    "feature": [
      "Functionaliteit"
    ],
    "given": [
      "* ",
      "Gegeven ",
      "Stel "
    ],
    "name": "Dutch",
    "native": "Nederlands",
    "scenario": [
      "Scenario"
    ],
    "scenarioOutline": [
      "Abstract Scenario"
    ],
    "then": [
      "* ",
      "Dan "
    ],
    "when": [
      "* ",
      "Als ",
      "Wanneer "
    ]
  },
  "no": {
    "and": [
      "* ",
      "Og "
    ],
    "background": [
      "Bakgrunn"
    ],
    "but": [
      "* ",
      "Men "
    ],
    "examples": [
      "Eksempler"
    ],
    "feature": [
      "Egenskap"
    ],
    "given": [
      "* ",
      "Gitt "
    ],
    "name": "Norwegian",
    "native": "norsk",
    "scenario": [
      "Scenario"
    ],
    "scenarioOutline": [
      "Scenariomal",
      "Abstrakt Scenario"
    ],
    "then": [
      "* ",
      "Så "
    ],
    "when": [
      "* ",
      "Når "
    ]
  },
  "pa": {
    "and": [
      "* ",
      "ਅਤੇ "
    ],
    "background": [
      "ਪਿਛੋਕੜ"
    ],
    "but": [
      "* ",
      "ਪਰ "
    ],
    "examples": [
      "ਉਦਾਹਰਨਾਂ"
    ],
    "feature": [
      "ਖਾਸੀਅਤ",
      "ਮੁਹਾਂਦਰਾ",
      "ਨਕਸ਼ ਨੁਹਾਰ"
    ],
    "given": [
      "* ",
      "ਜੇਕਰ ",
      "ਜਿਵੇਂ ਕਿ "
    ],
    "name": "Panjabi",
    "native": "ਪੰਜਾਬੀ",
    "scenario": [
      "ਪਟਕਥਾ"
    ],
    "scenarioOutline": [
      "ਪਟਕਥਾ ਢਾਂਚਾ",
      "ਪਟਕਥਾ ਰੂਪ ਰੇਖਾ"
    ],
    "then": [
      "* ",
      "ਤਦ "
    ],
    "when": [
      "* ",
      "ਜਦੋਂ "
    ]
  },
  "pl": {
    "and": [
      "* ",
      "Oraz ",
      "I "
    ],
    "background": [
      "Założenia"
    ],
    "but": [
      "* ",
      "Ale "
    ],
    "examples": [
      "Przykłady"
    ],
    "feature": [
      "Właściwość",
      "Funkcja",
      "Aspekt",
      "Potrzeba biznesowa"
    ],
    "given": [
      "* ",
      "Zakładając ",
      "Mając ",
      "Zakładając, że "
    ],
    "name": "Polish",
    "native": "polski",
    "scenario": [
      "Scenariusz"
    ],
    "scenarioOutline": [
      "Szablon scenariusza"
    ],
    "then": [
      "* ",
      "Wtedy "
    ],
    "when": [
      "* ",
      "Jeżeli ",
      "Jeśli ",
      "Gdy ",
      "Kiedy "
    ]
  },
  "pt": {
    "and": [
      "* ",
      "E "
    ],
    "background": [
      "Contexto",
      "Cenário de Fundo",
      "Cenario de Fundo",
      "Fundo"
    ],
    "but": [
      "* ",
      "Mas "
    ],
    "examples": [
      "Exemplos",
      "Cenários",
      "Cenarios"
    ],
    "feature": [
      "Funcionalidade",
      "Característica",
      "Caracteristica"
    ],
    "given": [
      "* ",
      "Dado ",
      "Dada ",
      "Dados ",
      "Dadas "
    ],
    "name": "Portuguese",
    "native": "português",
    "scenario": [
      "Cenário",
      "Cenario"
    ],
    "scenarioOutline": [
      "Esquema do Cenário",
      "Esquema do Cenario",
      "Delineação do Cenário",
      "Delineacao do Cenario"
    ],
    "then": [
      "* ",
      "Então ",
      "Entao "
    ],
    "when": [
      "* ",
      "Quando "
    ]
  },
  "ro": {
    "and": [
      "* ",
      "Si ",
      "Și ",
      "Şi "
    ],
    "background": [
      "Context"
    ],
    "but": [
      "* ",
      "Dar "
    ],
    "examples": [
      "Exemple"
    ],
    "feature": [
      "Functionalitate",
      "Funcționalitate",
      "Funcţionalitate"
    ],
    "given": [
      "* ",
      "Date fiind ",
      "Dat fiind ",
      "Dată fiind",
      "Dati fiind ",
      "Dați fiind ",
      "Daţi fiind "
    ],
    "name": "Romanian",
    "native": "română",
    "scenario": [
      "Scenariu"
    ],
    "scenarioOutline": [
      "Structura scenariu",
      "Structură scenariu"
    ],
    "then": [
      "* ",
      "Atunci "
    ],
    "when": [
      "* ",
      "Cand ",
      "Când "
    ]
  },
  "ru": {
    "and": [
      "* ",
      "И ",
      "К тому же ",
      "Также "
    ],
    "background": [
      "Предыстория",
      "Контекст"
    ],
    "but": [
      "* ",
      "Но ",
      "А "
    ],
    "examples": [
      "Примеры"
    ],
    "feature": [
      "Функция",
      "Функциональность",
      "Функционал",
      "Свойство"
    ],
    "given": [
      "* ",
      "Допустим ",
      "Дано ",
      "Пусть ",
      "Если "
    ],
    "name": "Russian",
    "native": "русский",
    "scenario": [
      "Сценарий"
    ],
    "scenarioOutline": [
      "Структура сценария"
    ],
    "then": [
      "* ",
      "То ",
      "Затем ",
      "Тогда "
    ],
    "when": [
      "* ",
      "Когда "
    ]
  },
  "sk": {
    "and": [
      "* ",
      "A ",
      "A tiež ",
      "A taktiež ",
      "A zároveň "
    ],
    "background": [
      "Pozadie"
    ],
    "but": [
      "* ",
      "Ale "
    ],
    "examples": [
      "Príklady"
    ],
    "feature": [
      "Požiadavka",
      "Funkcia",
      "Vlastnosť"
    ],
    "given": [
      "* ",
      "Pokiaľ ",
      "Za predpokladu "
    ],
    "name": "Slovak",
    "native": "Slovensky",
    "scenario": [
      "Scenár"
    ],
    "scenarioOutline": [
      "Náčrt Scenáru",
      "Náčrt Scenára",
      "Osnova Scenára"
    ],
    "then": [
      "* ",
      "Tak ",
      "Potom "
    ],
    "when": [
      "* ",
      "Keď ",
      "Ak "
    ]
  },
  "sl": {
    "and": [
      "In ",
      "Ter "
    ],
    "background": [
      "Kontekst",
      "Osnova",
      "Ozadje"
    ],
    "but": [
      "Toda ",
      "Ampak ",
      "Vendar "
    ],
    "examples": [
      "Primeri",
      "Scenariji"
    ],
    "feature": [
      "Funkcionalnost",
      "Funkcija",
      "Možnosti",
      "Moznosti",
      "Lastnost",
      "Značilnost"
    ],
    "given": [
      "Dano ",
      "Podano ",
      "Zaradi ",
      "Privzeto "
    ],
    "name": "Slovenian",
    "native": "Slovenski",
    "scenario": [
      "Scenarij",
      "Primer"
    ],
    "scenarioOutline": [
      "Struktura scenarija",
      "Skica",
      "Koncept",
      "Oris scenarija",
      "Osnutek"
    ],
    "then": [
      "Nato ",
      "Potem ",
      "Takrat "
    ],
    "when": [
      "Ko ",
      "Ce ",
      "Če ",
      "Kadar "
    ]
  },
  "sr-Cyrl": {
    "and": [
      "* ",
      "И "
    ],
    "background": [
      "Контекст",
      "Основа",
      "Позадина"
    ],
    "but": [
      "* ",
      "Али "
    ],
    "examples": [
      "Примери",
      "Сценарији"
    ],
    "feature": [
      "Функционалност",
      "Могућност",
      "Особина"
    ],
    "given": [
      "* ",
      "За дато ",
      "За дате ",
      "За дати "
    ],
    "name": "Serbian",
    "native": "Српски",
    "scenario": [
      "Сценарио",
      "Пример"
    ],
    "scenarioOutline": [
      "Структура сценарија",
      "Скица",
      "Концепт"
    ],
    "then": [
      "* ",
      "Онда "
    ],
    "when": [
      "* ",
      "Када ",
      "Кад "
    ]
  },
  "sr-Latn": {
    "and": [
      "* ",
      "I "
    ],
    "background": [
      "Kontekst",
      "Osnova",
      "Pozadina"
    ],
    "but": [
      "* ",
      "Ali "
    ],
    "examples": [
      "Primeri",
      "Scenariji"
    ],
    "feature": [
      "Funkcionalnost",
      "Mogućnost",
      "Mogucnost",
      "Osobina"
    ],
    "given": [
      "* ",
      "Za dato ",
      "Za date ",
      "Za dati "
    ],
    "name": "Serbian (Latin)",
    "native": "Srpski (Latinica)",
    "scenario": [
      "Scenario",
      "Primer"
    ],
    "scenarioOutline": [
      "Struktura scenarija",
      "Skica",
      "Koncept"
    ],
    "then": [
      "* ",
      "Onda "
    ],
    "when": [
      "* ",
      "Kada ",
      "Kad "
    ]
  },
  "sv": {
    "and": [
      "* ",
      "Och "
    ],
    "background": [
      "Bakgrund"
    ],
    "but": [
      "* ",
      "Men "
    ],
    "examples": [
      "Exempel"
    ],
    "feature": [
      "Egenskap"
    ],
    "given": [
      "* ",
      "Givet "
    ],
    "name": "Swedish",
    "native": "Svenska",
    "scenario": [
      "Scenario"
    ],
    "scenarioOutline": [
      "Abstrakt Scenario",
      "Scenariomall"
    ],
    "then": [
      "* ",
      "Så "
    ],
    "when": [
      "* ",
      "När "
    ]
  },
  "ta": {
    "and": [
      "* ",
      "மேலும்  ",
      "மற்றும் "
    ],
    "background": [
      "பின்னணி"
    ],
    "but": [
      "* ",
      "ஆனால்  "
    ],
    "examples": [
      "எடுத்துக்காட்டுகள்",
      "காட்சிகள்",
      " நிலைமைகளில்"
    ],
    "feature": [
      "அம்சம்",
      "வணிக தேவை",
      "திறன்"
    ],
    "given": [
      "* ",
      "கொடுக்கப்பட்ட "
    ],
    "name": "Tamil",
    "native": "தமிழ்",
    "scenario": [
      "காட்சி"
    ],
    "scenarioOutline": [
      "காட்சி சுருக்கம்",
      "காட்சி வார்ப்புரு"
    ],
    "then": [
      "* ",
      "அப்பொழுது "
    ],
    "when": [
      "* ",
      "எப்போது "
    ]
  },
  "th": {
    "and": [
      "* ",
      "และ "
    ],
    "background": [
      "แนวคิด"
    ],
    "but": [
      "* ",
      "แต่ "
    ],
    "examples": [
      "ชุดของตัวอย่าง",
      "ชุดของเหตุการณ์"
    ],
    "feature": [
      "โครงหลัก",
      "ความต้องการทางธุรกิจ",
      "ความสามารถ"
    ],
    "given": [
      "* ",
      "กำหนดให้ "
    ],
    "name": "Thai",
    "native": "ไทย",
    "scenario": [
      "เหตุการณ์"
    ],
    "scenarioOutline": [
      "สรุปเหตุการณ์",
      "โครงสร้างของเหตุการณ์"
    ],
    "then": [
      "* ",
      "ดังนั้น "
    ],
    "when": [
      "* ",
      "เมื่อ "
    ]
  },
  "tl": {
    "and": [
      "* ",
      "మరియు "
    ],
    "background": [
      "నేపథ్యం"
    ],
    "but": [
      "* ",
      "కాని "
    ],
    "examples": [
      "ఉదాహరణలు"
    ],
    "feature": [
      "గుణము"
    ],
    "given": [
      "* ",
      "చెప్పబడినది "
    ],
    "name": "Telugu",
    "native": "తెలుగు",
    "scenario": [
      "సన్నివేశం"
    ],
    "scenarioOutline": [
      "కథనం"
    ],
    "then": [
      "* ",
      "అప్పుడు "
    ],
    "when": [
      "* ",
      "ఈ పరిస్థితిలో "
    ]
  },
  "tlh": {
    "and": [
      "* ",
      "'ej ",
      "latlh "
    ],
    "background": [
      "mo'"
    ],
    "but": [
      "* ",
      "'ach ",
      "'a "
    ],
    "examples": [
      "ghantoH",
      "lutmey"
    ],
    "feature": [
      "Qap",
      "Qu'meH 'ut",
      "perbogh",
      "poQbogh malja'",
      "laH"
    ],
    "given": [
      "* ",
      "ghu' noblu' ",
      "DaH ghu' bejlu' "
    ],
    "name": "Klingon",
    "native": "tlhIngan",
    "scenario": [
      "lut"
    ],
    "scenarioOutline": [
      "lut chovnatlh"
    ],
    "then": [
      "* ",
      "vaj "
    ],
    "when": [
      "* ",
      "qaSDI' "
    ]
  },
  "tr": {
    "and": [
      "* ",
      "Ve "
    ],
    "background": [
      "Geçmiş"
    ],
    "but": [
      "* ",
      "Fakat ",
      "Ama "
    ],
    "examples": [
      "Örnekler"
    ],
    "feature": [
      "Özellik"
    ],
    "given": [
      "* ",
      "Diyelim ki "
    ],
    "name": "Turkish",
    "native": "Türkçe",
    "scenario": [
      "Senaryo"
    ],
    "scenarioOutline": [
      "Senaryo taslağı"
    ],
    "then": [
      "* ",
      "O zaman "
    ],
    "when": [
      "* ",
      "Eğer ki "
    ]
  },
  "tt": {
    "and": [
      "* ",
      "Һәм ",
      "Вә "
    ],
    "background": [
      "Кереш"
    ],
    "but": [
      "* ",
      "Ләкин ",
      "Әмма "
    ],
    "examples": [
      "Үрнәкләр",
      "Мисаллар"
    ],
    "feature": [
      "Мөмкинлек",
      "Үзенчәлеклелек"
    ],
    "given": [
      "* ",
      "Әйтик "
    ],
    "name": "Tatar",
    "native": "Татарча",
    "scenario": [
      "Сценарий"
    ],
    "scenarioOutline": [
      "Сценарийның төзелеше"
    ],
    "then": [
      "* ",
      "Нәтиҗәдә "
    ],
    "when": [
      "* ",
      "Әгәр "
    ]
  },
  "uk": {
    "and": [
      "* ",
      "І ",
      "А також ",
      "Та "
    ],
    "background": [
      "Передумова"
    ],
    "but": [
      "* ",
      "Але "
    ],
    "examples": [
      "Приклади"
    ],
    "feature": [
      "Функціонал"
    ],
    "given": [
      "* ",
      "Припустимо ",
      "Припустимо, що ",
      "Нехай ",
      "Дано "
    ],
    "name": "Ukrainian",
    "native": "Українська",
    "scenario": [
      "Сценарій"
    ],
    "scenarioOutline": [
      "Структура сценарію"
    ],
    "then": [
      "* ",
      "То ",
      "Тоді "
    ],
    "when": [
      "* ",
      "Якщо ",
      "Коли "
    ]
  },
  "ur": {
    "and": [
      "* ",
      "اور "
    ],
    "background": [
      "پس منظر"
    ],
    "but": [
      "* ",
      "لیکن "
    ],
    "examples": [
      "مثالیں"
    ],
    "feature": [
      "صلاحیت",
      "کاروبار کی ضرورت",
      "خصوصیت"
    ],
    "given": [
      "* ",
      "اگر ",
      "بالفرض ",
      "فرض کیا "
    ],
    "name": "Urdu",
    "native": "اردو",
    "scenario": [
      "منظرنامہ"
    ],
    "scenarioOutline": [
      "منظر نامے کا خاکہ"
    ],
    "then": [
      "* ",
      "پھر ",
      "تب "
    ],
    "when": [
      "* ",
      "جب "
    ]
  },
  "uz": {
    "and": [
      "* ",
      "Ва "
    ],
    "background": [
      "Тарих"
    ],
    "but": [
      "* ",
      "Лекин ",
      "Бирок ",
      "Аммо "
    ],
    "examples": [
      "Мисоллар"
    ],
    "feature": [
      "Функционал"
    ],
    "given": [
      "* ",
      "Агар "
    ],
    "name": "Uzbek",
    "native": "Узбекча",
    "scenario": [
      "Сценарий"
    ],
    "scenarioOutline": [
      "Сценарий структураси"
    ],
    "then": [
      "* ",
      "Унда "
    ],
    "when": [
      "* ",
      "Агар "
    ]
  },
  "vi": {
    "and": [
      "* ",
      "Và "
    ],
    "background": [
      "Bối cảnh"
    ],
    "but": [
      "* ",
      "Nhưng "
    ],
    "examples": [
      "Dữ liệu"
    ],
    "feature": [
      "Tính năng"
    ],
    "given": [
      "* ",
      "Biết ",
      "Cho "
    ],
    "name": "Vietnamese",
    "native": "Tiếng Việt",
    "scenario": [
      "Tình huống",
      "Kịch bản"
    ],
    "scenarioOutline": [
      "Khung tình huống",
      "Khung kịch bản"
    ],
    "then": [
      "* ",
      "Thì "
    ],
    "when": [
      "* ",
      "Khi "
    ]
  },
  "zh-CN": {
    "and": [
      "* ",
      "而且",
      "并且",
      "同时"
    ],
    "background": [
      "背景"
    ],
    "but": [
      "* ",
      "但是"
    ],
    "examples": [
      "例子"
    ],
    "feature": [
      "功能"
    ],
    "given": [
      "* ",
      "假如",
      "假设",
      "假定"
    ],
    "name": "Chinese simplified",
    "native": "简体中文",
    "scenario": [
      "场景",
      "剧本"
    ],
    "scenarioOutline": [
      "场景大纲",
      "剧本大纲"
    ],
    "then": [
      "* ",
      "那么"
    ],
    "when": [
      "* ",
      "当"
    ]
  },
  "zh-TW": {
    "and": [
      "* ",
      "而且",
      "並且",
      "同時"
    ],
    "background": [
      "背景"
    ],
    "but": [
      "* ",
      "但是"
    ],
    "examples": [
      "例子"
    ],
    "feature": [
      "功能"
    ],
    "given": [
      "* ",
      "假如",
      "假設",
      "假定"
    ],
    "name": "Chinese traditional",
    "native": "繁體中文",
    "scenario": [
      "場景",
      "劇本"
    ],
    "scenarioOutline": [
      "場景大綱",
      "劇本大綱"
    ],
    "then": [
      "* ",
      "那麼"
    ],
    "when": [
      "* ",
      "當"
    ]
  }
}

},{}],219:[function(require,module,exports){
var countSymbols = require('./count_symbols')

function GherkinLine(lineText, lineNumber) {
  this.lineText = lineText;
  this.lineNumber = lineNumber;
  this.trimmedLineText = lineText.replace(/^\s+/g, ''); // ltrim
  this.isEmpty = this.trimmedLineText.length == 0;
  this.indent = countSymbols(lineText) - countSymbols(this.trimmedLineText);
};

GherkinLine.prototype.startsWith = function startsWith(prefix) {
  return this.trimmedLineText.indexOf(prefix) == 0;
};

GherkinLine.prototype.startsWithTitleKeyword = function startsWithTitleKeyword(keyword) {
  return this.startsWith(keyword+':'); // The C# impl is more complicated. Find out why.
};

GherkinLine.prototype.getLineText = function getLineText(indentToRemove) {
  if (indentToRemove < 0 || indentToRemove > this.indent) {
    return this.trimmedLineText;
  } else {
    return this.lineText.substring(indentToRemove);
  }
};

GherkinLine.prototype.getRestTrimmed = function getRestTrimmed(length) {
  return this.trimmedLineText.substring(length).trim();
};

GherkinLine.prototype.getTableCells = function getTableCells() {
  var cells = [];
  var col = 0;
  var startCol = col + 1;
  var cell = '';
  var firstCell = true;
  while (col < this.trimmedLineText.length) {
    var chr = this.trimmedLineText[col];
    col++;

    if (chr == '|') {
      if (firstCell) {
        // First cell (content before the first |) is skipped
        firstCell = false;
      } else {
        var cellIndent = cell.length - cell.replace(/^\s+/g, '').length;
        var span = {column: this.indent + startCol + cellIndent, text: cell.trim()};
        cells.push(span);
      }
      cell = '';
      startCol = col + 1;
    } else if (chr == '\\') {
      chr = this.trimmedLineText[col];
      col += 1;
      if (chr == 'n') {
        cell += '\n';
      } else {
        if (chr != '|' && chr != '\\') {
          cell += '\\';
        }
        cell += chr;
      }
    } else {
      cell += chr;
    }
  }

  return cells;
};

GherkinLine.prototype.getTags = function getTags() {
  var column = this.indent + 1;
  var items = this.trimmedLineText.trim().split('@');
  items.shift();
  return items.map(function (item) {
    var length = item.length;
    var span = {column: column, text: '@' + item.trim()};
    column += length + 1;
    return span;
  });
};

module.exports = GherkinLine;

},{"./count_symbols":214}],220:[function(require,module,exports){
// This file is generated. Do not edit! Edit gherkin-javascript.razor instead.
var Errors = require('./errors');
var AstBuilder = require('./ast_builder');
var TokenScanner = require('./token_scanner');
var TokenMatcher = require('./token_matcher');

var RULE_TYPES = [
  'None',
  '_EOF', // #EOF
  '_Empty', // #Empty
  '_Comment', // #Comment
  '_TagLine', // #TagLine
  '_FeatureLine', // #FeatureLine
  '_BackgroundLine', // #BackgroundLine
  '_ScenarioLine', // #ScenarioLine
  '_ScenarioOutlineLine', // #ScenarioOutlineLine
  '_ExamplesLine', // #ExamplesLine
  '_StepLine', // #StepLine
  '_DocStringSeparator', // #DocStringSeparator
  '_TableRow', // #TableRow
  '_Language', // #Language
  '_Other', // #Other
  'GherkinDocument', // GherkinDocument! := Feature?
  'Feature', // Feature! := Feature_Header Background? Scenario_Definition*
  'Feature_Header', // Feature_Header! := #Language? Tags? #FeatureLine Description_Helper
  'Background', // Background! := #BackgroundLine Description_Helper Step*
  'Scenario_Definition', // Scenario_Definition! := Tags? (Scenario | ScenarioOutline)
  'Scenario', // Scenario! := #ScenarioLine Description_Helper Step*
  'ScenarioOutline', // ScenarioOutline! := #ScenarioOutlineLine Description_Helper Step* Examples_Definition*
  'Examples_Definition', // Examples_Definition! [#Empty|#Comment|#TagLine-&gt;#ExamplesLine] := Tags? Examples
  'Examples', // Examples! := #ExamplesLine Description_Helper Examples_Table?
  'Examples_Table', // Examples_Table! := #TableRow #TableRow*
  'Step', // Step! := #StepLine Step_Arg?
  'Step_Arg', // Step_Arg := (DataTable | DocString)
  'DataTable', // DataTable! := #TableRow+
  'DocString', // DocString! := #DocStringSeparator #Other* #DocStringSeparator
  'Tags', // Tags! := #TagLine+
  'Description_Helper', // Description_Helper := #Empty* Description? #Comment*
  'Description', // Description! := #Other+
];

module.exports = function Parser(builder) {
  builder = builder || new AstBuilder();
  var self = this;
  var context;

  this.parse = function(tokenScanner, tokenMatcher) {
    if(typeof tokenScanner == 'string') {
      tokenScanner = new TokenScanner(tokenScanner);
    }
    if(typeof tokenMatcher == 'string') {
      tokenMatcher = new TokenMatcher(tokenMatcher);
    }
    tokenMatcher = tokenMatcher || new TokenMatcher();
    builder.reset();
    tokenMatcher.reset();
    context = {
      tokenScanner: tokenScanner,
      tokenMatcher: tokenMatcher,
      tokenQueue: [],
      errors: []
    };
    startRule(context, "GherkinDocument");
    var state = 0;
    var token = null;
    while(true) {
      token = readToken(context);
      state = matchToken(state, token, context);
      if(token.isEof) break;
    }

    endRule(context, "GherkinDocument");

    if(context.errors.length > 0) {
      throw Errors.CompositeParserException.create(context.errors);
    }

    return getResult();
  };

  function addError(context, error) {
    context.errors.push(error);
    if (context.errors.length > 10)
      throw Errors.CompositeParserException.create(context.errors);
  }

  function startRule(context, ruleType) {
    handleAstError(context, function () {
      builder.startRule(ruleType);
    });
  }

  function endRule(context, ruleType) {
    handleAstError(context, function () {
      builder.endRule(ruleType);
    });
  }

  function build(context, token) {
    handleAstError(context, function () {
      builder.build(token);
    });
  }

  function getResult() {
    return builder.getResult();
  }

  function handleAstError(context, action) {
    handleExternalError(context, true, action)
  }

  function handleExternalError(context, defaultValue, action) {
    if(self.stopAtFirstError) return action();
    try {
      return action();
    } catch (e) {
      if(e instanceof Errors.CompositeParserException) {
        e.errors.forEach(function (error) {
          addError(context, error);
        });
      } else if(
        e instanceof Errors.ParserException ||
        e instanceof Errors.AstBuilderException ||
        e instanceof Errors.UnexpectedTokenException ||
        e instanceof Errors.NoSuchLanguageException
      ) {
        addError(context, e);
      } else {
        throw e;
      }
    }
    return defaultValue;
  }

  function readToken(context) {
    return context.tokenQueue.length > 0 ?
      context.tokenQueue.shift() :
      context.tokenScanner.read();
  }

  function matchToken(state, token, context) {
    switch(state) {
    case 0:
      return matchTokenAt_0(token, context);
    case 1:
      return matchTokenAt_1(token, context);
    case 2:
      return matchTokenAt_2(token, context);
    case 3:
      return matchTokenAt_3(token, context);
    case 4:
      return matchTokenAt_4(token, context);
    case 5:
      return matchTokenAt_5(token, context);
    case 6:
      return matchTokenAt_6(token, context);
    case 7:
      return matchTokenAt_7(token, context);
    case 8:
      return matchTokenAt_8(token, context);
    case 9:
      return matchTokenAt_9(token, context);
    case 10:
      return matchTokenAt_10(token, context);
    case 11:
      return matchTokenAt_11(token, context);
    case 12:
      return matchTokenAt_12(token, context);
    case 13:
      return matchTokenAt_13(token, context);
    case 14:
      return matchTokenAt_14(token, context);
    case 15:
      return matchTokenAt_15(token, context);
    case 16:
      return matchTokenAt_16(token, context);
    case 17:
      return matchTokenAt_17(token, context);
    case 18:
      return matchTokenAt_18(token, context);
    case 19:
      return matchTokenAt_19(token, context);
    case 20:
      return matchTokenAt_20(token, context);
    case 21:
      return matchTokenAt_21(token, context);
    case 22:
      return matchTokenAt_22(token, context);
    case 23:
      return matchTokenAt_23(token, context);
    case 24:
      return matchTokenAt_24(token, context);
    case 25:
      return matchTokenAt_25(token, context);
    case 26:
      return matchTokenAt_26(token, context);
    case 28:
      return matchTokenAt_28(token, context);
    case 29:
      return matchTokenAt_29(token, context);
    case 30:
      return matchTokenAt_30(token, context);
    case 31:
      return matchTokenAt_31(token, context);
    case 32:
      return matchTokenAt_32(token, context);
    case 33:
      return matchTokenAt_33(token, context);
    default:
      throw new Error("Unknown state: " + state);
    }
  }


  // Start
  function matchTokenAt_0(token, context) {
    if(match_EOF(context, token)) {
      build(context, token);
      return 27;
    }
    if(match_Language(context, token)) {
      startRule(context, 'Feature');
      startRule(context, 'Feature_Header');
      build(context, token);
      return 1;
    }
    if(match_TagLine(context, token)) {
      startRule(context, 'Feature');
      startRule(context, 'Feature_Header');
      startRule(context, 'Tags');
      build(context, token);
      return 2;
    }
    if(match_FeatureLine(context, token)) {
      startRule(context, 'Feature');
      startRule(context, 'Feature_Header');
      build(context, token);
      return 3;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 0;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 0;
    }
    
    var stateComment = "State: 0 - Start";
    token.detach();
    var expectedTokens = ["#EOF", "#Language", "#TagLine", "#FeatureLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 0;
  }


  // GherkinDocument:0>Feature:0>Feature_Header:0>#Language:0
  function matchTokenAt_1(token, context) {
    if(match_TagLine(context, token)) {
      startRule(context, 'Tags');
      build(context, token);
      return 2;
    }
    if(match_FeatureLine(context, token)) {
      build(context, token);
      return 3;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 1;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 1;
    }
    
    var stateComment = "State: 1 - GherkinDocument:0>Feature:0>Feature_Header:0>#Language:0";
    token.detach();
    var expectedTokens = ["#TagLine", "#FeatureLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 1;
  }


  // GherkinDocument:0>Feature:0>Feature_Header:1>Tags:0>#TagLine:0
  function matchTokenAt_2(token, context) {
    if(match_TagLine(context, token)) {
      build(context, token);
      return 2;
    }
    if(match_FeatureLine(context, token)) {
      endRule(context, 'Tags');
      build(context, token);
      return 3;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 2;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 2;
    }
    
    var stateComment = "State: 2 - GherkinDocument:0>Feature:0>Feature_Header:1>Tags:0>#TagLine:0";
    token.detach();
    var expectedTokens = ["#TagLine", "#FeatureLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 2;
  }


  // GherkinDocument:0>Feature:0>Feature_Header:2>#FeatureLine:0
  function matchTokenAt_3(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Feature_Header');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 3;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 5;
    }
    if(match_BackgroundLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Background');
      build(context, token);
      return 6;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      startRule(context, 'Description');
      build(context, token);
      return 4;
    }
    
    var stateComment = "State: 3 - GherkinDocument:0>Feature:0>Feature_Header:2>#FeatureLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Empty", "#Comment", "#BackgroundLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 3;
  }


  // GherkinDocument:0>Feature:0>Feature_Header:3>Description_Helper:1>Description:0>#Other:0
  function matchTokenAt_4(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Feature_Header');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      endRule(context, 'Description');
      build(context, token);
      return 5;
    }
    if(match_BackgroundLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Feature_Header');
      startRule(context, 'Background');
      build(context, token);
      return 6;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 4;
    }
    
    var stateComment = "State: 4 - GherkinDocument:0>Feature:0>Feature_Header:3>Description_Helper:1>Description:0>#Other:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#BackgroundLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 4;
  }


  // GherkinDocument:0>Feature:0>Feature_Header:3>Description_Helper:2>#Comment:0
  function matchTokenAt_5(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Feature_Header');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 5;
    }
    if(match_BackgroundLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Background');
      build(context, token);
      return 6;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Feature_Header');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 5;
    }
    
    var stateComment = "State: 5 - GherkinDocument:0>Feature:0>Feature_Header:3>Description_Helper:2>#Comment:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#BackgroundLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 5;
  }


  // GherkinDocument:0>Feature:1>Background:0>#BackgroundLine:0
  function matchTokenAt_6(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Background');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 6;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 8;
    }
    if(match_StepLine(context, token)) {
      startRule(context, 'Step');
      build(context, token);
      return 9;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      startRule(context, 'Description');
      build(context, token);
      return 7;
    }
    
    var stateComment = "State: 6 - GherkinDocument:0>Feature:1>Background:0>#BackgroundLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Empty", "#Comment", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 6;
  }


  // GherkinDocument:0>Feature:1>Background:1>Description_Helper:1>Description:0>#Other:0
  function matchTokenAt_7(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Background');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      endRule(context, 'Description');
      build(context, token);
      return 8;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'Description');
      startRule(context, 'Step');
      build(context, token);
      return 9;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 7;
    }
    
    var stateComment = "State: 7 - GherkinDocument:0>Feature:1>Background:1>Description_Helper:1>Description:0>#Other:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 7;
  }


  // GherkinDocument:0>Feature:1>Background:1>Description_Helper:2>#Comment:0
  function matchTokenAt_8(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Background');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 8;
    }
    if(match_StepLine(context, token)) {
      startRule(context, 'Step');
      build(context, token);
      return 9;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 8;
    }
    
    var stateComment = "State: 8 - GherkinDocument:0>Feature:1>Background:1>Description_Helper:2>#Comment:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 8;
  }


  // GherkinDocument:0>Feature:1>Background:2>Step:0>#StepLine:0
  function matchTokenAt_9(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Background');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_TableRow(context, token)) {
      startRule(context, 'DataTable');
      build(context, token);
      return 10;
    }
    if(match_DocStringSeparator(context, token)) {
      startRule(context, 'DocString');
      build(context, token);
      return 32;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 9;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 9;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 9;
    }
    
    var stateComment = "State: 9 - GherkinDocument:0>Feature:1>Background:2>Step:0>#StepLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#TableRow", "#DocStringSeparator", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 9;
  }


  // GherkinDocument:0>Feature:1>Background:2>Step:1>Step_Arg:0>__alt1:0>DataTable:0>#TableRow:0
  function matchTokenAt_10(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Background');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_TableRow(context, token)) {
      build(context, token);
      return 10;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 9;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 10;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 10;
    }
    
    var stateComment = "State: 10 - GherkinDocument:0>Feature:1>Background:2>Step:1>Step_Arg:0>__alt1:0>DataTable:0>#TableRow:0";
    token.detach();
    var expectedTokens = ["#EOF", "#TableRow", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 10;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:0>Tags:0>#TagLine:0
  function matchTokenAt_11(token, context) {
    if(match_TagLine(context, token)) {
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Tags');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Tags');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 11;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 11;
    }
    
    var stateComment = "State: 11 - GherkinDocument:0>Feature:2>Scenario_Definition:0>Tags:0>#TagLine:0";
    token.detach();
    var expectedTokens = ["#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 11;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:0>#ScenarioLine:0
  function matchTokenAt_12(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 12;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 14;
    }
    if(match_StepLine(context, token)) {
      startRule(context, 'Step');
      build(context, token);
      return 15;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      startRule(context, 'Description');
      build(context, token);
      return 13;
    }
    
    var stateComment = "State: 12 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:0>#ScenarioLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Empty", "#Comment", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 12;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:1>Description_Helper:1>Description:0>#Other:0
  function matchTokenAt_13(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      endRule(context, 'Description');
      build(context, token);
      return 14;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'Description');
      startRule(context, 'Step');
      build(context, token);
      return 15;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 13;
    }
    
    var stateComment = "State: 13 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:1>Description_Helper:1>Description:0>#Other:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 13;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:1>Description_Helper:2>#Comment:0
  function matchTokenAt_14(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 14;
    }
    if(match_StepLine(context, token)) {
      startRule(context, 'Step');
      build(context, token);
      return 15;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 14;
    }
    
    var stateComment = "State: 14 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:1>Description_Helper:2>#Comment:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 14;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:0>#StepLine:0
  function matchTokenAt_15(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_TableRow(context, token)) {
      startRule(context, 'DataTable');
      build(context, token);
      return 16;
    }
    if(match_DocStringSeparator(context, token)) {
      startRule(context, 'DocString');
      build(context, token);
      return 30;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 15;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 15;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 15;
    }
    
    var stateComment = "State: 15 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:0>#StepLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#TableRow", "#DocStringSeparator", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 15;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:1>Step_Arg:0>__alt1:0>DataTable:0>#TableRow:0
  function matchTokenAt_16(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_TableRow(context, token)) {
      build(context, token);
      return 16;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 15;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 16;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 16;
    }
    
    var stateComment = "State: 16 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:1>Step_Arg:0>__alt1:0>DataTable:0>#TableRow:0";
    token.detach();
    var expectedTokens = ["#EOF", "#TableRow", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 16;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:0>#ScenarioOutlineLine:0
  function matchTokenAt_17(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 19;
    }
    if(match_StepLine(context, token)) {
      startRule(context, 'Step');
      build(context, token);
      return 20;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      startRule(context, 'Description');
      build(context, token);
      return 18;
    }
    
    var stateComment = "State: 17 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:0>#ScenarioOutlineLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Empty", "#Comment", "#StepLine", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 17;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:1>Description_Helper:1>Description:0>#Other:0
  function matchTokenAt_18(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      endRule(context, 'Description');
      build(context, token);
      return 19;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'Description');
      startRule(context, 'Step');
      build(context, token);
      return 20;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'Description');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'Description');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 18;
    }
    
    var stateComment = "State: 18 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:1>Description_Helper:1>Description:0>#Other:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#StepLine", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 18;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:1>Description_Helper:2>#Comment:0
  function matchTokenAt_19(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 19;
    }
    if(match_StepLine(context, token)) {
      startRule(context, 'Step');
      build(context, token);
      return 20;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 19;
    }
    
    var stateComment = "State: 19 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:1>Description_Helper:2>#Comment:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#StepLine", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 19;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:0>#StepLine:0
  function matchTokenAt_20(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_TableRow(context, token)) {
      startRule(context, 'DataTable');
      build(context, token);
      return 21;
    }
    if(match_DocStringSeparator(context, token)) {
      startRule(context, 'DocString');
      build(context, token);
      return 28;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 20;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'Step');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'Step');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 20;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 20;
    }
    
    var stateComment = "State: 20 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:0>#StepLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#TableRow", "#DocStringSeparator", "#StepLine", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 20;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:1>Step_Arg:0>__alt1:0>DataTable:0>#TableRow:0
  function matchTokenAt_21(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_TableRow(context, token)) {
      build(context, token);
      return 21;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 20;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'DataTable');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 21;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 21;
    }
    
    var stateComment = "State: 21 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:1>Step_Arg:0>__alt1:0>DataTable:0>#TableRow:0";
    token.detach();
    var expectedTokens = ["#EOF", "#TableRow", "#StepLine", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 21;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:0>Tags:0>#TagLine:0
  function matchTokenAt_22(token, context) {
    if(match_TagLine(context, token)) {
      build(context, token);
      return 22;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'Tags');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 22;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 22;
    }
    
    var stateComment = "State: 22 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:0>Tags:0>#TagLine:0";
    token.detach();
    var expectedTokens = ["#TagLine", "#ExamplesLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 22;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:0>#ExamplesLine:0
  function matchTokenAt_23(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 23;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 25;
    }
    if(match_TableRow(context, token)) {
      startRule(context, 'Examples_Table');
      build(context, token);
      return 26;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      startRule(context, 'Description');
      build(context, token);
      return 24;
    }
    
    var stateComment = "State: 23 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:0>#ExamplesLine:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Empty", "#Comment", "#TableRow", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 23;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:1>Description_Helper:1>Description:0>#Other:0
  function matchTokenAt_24(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      endRule(context, 'Description');
      build(context, token);
      return 25;
    }
    if(match_TableRow(context, token)) {
      endRule(context, 'Description');
      startRule(context, 'Examples_Table');
      build(context, token);
      return 26;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Description');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 24;
    }
    
    var stateComment = "State: 24 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:1>Description_Helper:1>Description:0>#Other:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#TableRow", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 24;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:1>Description_Helper:2>#Comment:0
  function matchTokenAt_25(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 25;
    }
    if(match_TableRow(context, token)) {
      startRule(context, 'Examples_Table');
      build(context, token);
      return 26;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 25;
    }
    
    var stateComment = "State: 25 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:1>Description_Helper:2>#Comment:0";
    token.detach();
    var expectedTokens = ["#EOF", "#Comment", "#TableRow", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 25;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:2>Examples_Table:0>#TableRow:0
  function matchTokenAt_26(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'Examples_Table');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_TableRow(context, token)) {
      build(context, token);
      return 26;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'Examples_Table');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'Examples_Table');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'Examples_Table');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'Examples_Table');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'Examples_Table');
      endRule(context, 'Examples');
      endRule(context, 'Examples_Definition');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 26;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 26;
    }
    
    var stateComment = "State: 26 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:3>Examples_Definition:1>Examples:2>Examples_Table:0>#TableRow:0";
    token.detach();
    var expectedTokens = ["#EOF", "#TableRow", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 26;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:1>Step_Arg:0>__alt1:1>DocString:0>#DocStringSeparator:0
  function matchTokenAt_28(token, context) {
    if(match_DocStringSeparator(context, token)) {
      build(context, token);
      return 29;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 28;
    }
    
    var stateComment = "State: 28 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:1>Step_Arg:0>__alt1:1>DocString:0>#DocStringSeparator:0";
    token.detach();
    var expectedTokens = ["#DocStringSeparator", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 28;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:1>Step_Arg:0>__alt1:1>DocString:2>#DocStringSeparator:0
  function matchTokenAt_29(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 20;
    }
    if(match_TagLine(context, token)) {
      if(lookahead_0(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 22;
      }
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ExamplesLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      startRule(context, 'Examples_Definition');
      startRule(context, 'Examples');
      build(context, token);
      return 23;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'ScenarioOutline');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 29;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 29;
    }
    
    var stateComment = "State: 29 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:1>ScenarioOutline:2>Step:1>Step_Arg:0>__alt1:1>DocString:2>#DocStringSeparator:0";
    token.detach();
    var expectedTokens = ["#EOF", "#StepLine", "#TagLine", "#ExamplesLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 29;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:1>Step_Arg:0>__alt1:1>DocString:0>#DocStringSeparator:0
  function matchTokenAt_30(token, context) {
    if(match_DocStringSeparator(context, token)) {
      build(context, token);
      return 31;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 30;
    }
    
    var stateComment = "State: 30 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:1>Step_Arg:0>__alt1:1>DocString:0>#DocStringSeparator:0";
    token.detach();
    var expectedTokens = ["#DocStringSeparator", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 30;
  }


  // GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:1>Step_Arg:0>__alt1:1>DocString:2>#DocStringSeparator:0
  function matchTokenAt_31(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 15;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Scenario');
      endRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 31;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 31;
    }
    
    var stateComment = "State: 31 - GherkinDocument:0>Feature:2>Scenario_Definition:1>__alt0:0>Scenario:2>Step:1>Step_Arg:0>__alt1:1>DocString:2>#DocStringSeparator:0";
    token.detach();
    var expectedTokens = ["#EOF", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 31;
  }


  // GherkinDocument:0>Feature:1>Background:2>Step:1>Step_Arg:0>__alt1:1>DocString:0>#DocStringSeparator:0
  function matchTokenAt_32(token, context) {
    if(match_DocStringSeparator(context, token)) {
      build(context, token);
      return 33;
    }
    if(match_Other(context, token)) {
      build(context, token);
      return 32;
    }
    
    var stateComment = "State: 32 - GherkinDocument:0>Feature:1>Background:2>Step:1>Step_Arg:0>__alt1:1>DocString:0>#DocStringSeparator:0";
    token.detach();
    var expectedTokens = ["#DocStringSeparator", "#Other"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 32;
  }


  // GherkinDocument:0>Feature:1>Background:2>Step:1>Step_Arg:0>__alt1:1>DocString:2>#DocStringSeparator:0
  function matchTokenAt_33(token, context) {
    if(match_EOF(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Background');
      endRule(context, 'Feature');
      build(context, token);
      return 27;
    }
    if(match_StepLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      startRule(context, 'Step');
      build(context, token);
      return 9;
    }
    if(match_TagLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Tags');
      build(context, token);
      return 11;
    }
    if(match_ScenarioLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'Scenario');
      build(context, token);
      return 12;
    }
    if(match_ScenarioOutlineLine(context, token)) {
      endRule(context, 'DocString');
      endRule(context, 'Step');
      endRule(context, 'Background');
      startRule(context, 'Scenario_Definition');
      startRule(context, 'ScenarioOutline');
      build(context, token);
      return 17;
    }
    if(match_Comment(context, token)) {
      build(context, token);
      return 33;
    }
    if(match_Empty(context, token)) {
      build(context, token);
      return 33;
    }
    
    var stateComment = "State: 33 - GherkinDocument:0>Feature:1>Background:2>Step:1>Step_Arg:0>__alt1:1>DocString:2>#DocStringSeparator:0";
    token.detach();
    var expectedTokens = ["#EOF", "#StepLine", "#TagLine", "#ScenarioLine", "#ScenarioOutlineLine", "#Comment", "#Empty"];
    var error = token.isEof ?
      Errors.UnexpectedEOFException.create(token, expectedTokens, stateComment) :
      Errors.UnexpectedTokenException.create(token, expectedTokens, stateComment);
    if (self.stopAtFirstError) throw error;
    addError(context, error);
    return 33;
  }



  function match_EOF(context, token) {
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_EOF(token);
    });
  }


  function match_Empty(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_Empty(token);
    });
  }


  function match_Comment(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_Comment(token);
    });
  }


  function match_TagLine(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_TagLine(token);
    });
  }


  function match_FeatureLine(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_FeatureLine(token);
    });
  }


  function match_BackgroundLine(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_BackgroundLine(token);
    });
  }


  function match_ScenarioLine(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_ScenarioLine(token);
    });
  }


  function match_ScenarioOutlineLine(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_ScenarioOutlineLine(token);
    });
  }


  function match_ExamplesLine(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_ExamplesLine(token);
    });
  }


  function match_StepLine(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_StepLine(token);
    });
  }


  function match_DocStringSeparator(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_DocStringSeparator(token);
    });
  }


  function match_TableRow(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_TableRow(token);
    });
  }


  function match_Language(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_Language(token);
    });
  }


  function match_Other(context, token) {
    if(token.isEof) return false;
    return handleExternalError(context, false, function () {
      return context.tokenMatcher.match_Other(token);
    });
  }



  function lookahead_0(context, currentToken) {
    currentToken.detach();
    var token;
    var queue = [];
    var match = false;
    do {
      token = readToken(context);
      token.detach();
      queue.push(token);

      if (false  || match_ExamplesLine(context, token)) {
        match = true;
        break;
      }
    } while(false  || match_Empty(context, token) || match_Comment(context, token) || match_TagLine(context, token));

    context.tokenQueue = context.tokenQueue.concat(queue);

    return match;
  }


}

},{"./ast_builder":212,"./errors":216,"./token_matcher":223,"./token_scanner":224}],221:[function(require,module,exports){
var countSymbols = require('../count_symbols');

function Compiler() {
  this.compile = function (gherkin_document) {
    var pickles = [];

    if (gherkin_document.feature == null) return pickles;

    var feature = gherkin_document.feature;
    var language = feature.language;
    var featureTags = feature.tags;
    var backgroundSteps = [];

    feature.children.forEach(function (scenarioDefinition) {
      if(scenarioDefinition.type === 'Background') {
        backgroundSteps = pickleSteps(scenarioDefinition);
      } else if(scenarioDefinition.type === 'Scenario') {
        compileScenario(featureTags, backgroundSteps, scenarioDefinition, language, pickles);
      } else {
        compileScenarioOutline(featureTags, backgroundSteps, scenarioDefinition, language, pickles);
      }
    });
    return pickles;
  };

  function compileScenario(featureTags, backgroundSteps, scenario, language, pickles) {
    var steps = scenario.steps.length == 0 ? [] : [].concat(backgroundSteps);

    var tags = [].concat(featureTags).concat(scenario.tags);

    scenario.steps.forEach(function (step) {
      steps.push(pickleStep(step));
    });

    var pickle = {
      tags: pickleTags(tags),
      name: scenario.name,
      language: language,
      locations: [pickleLocation(scenario.location)],
      steps: steps
    };
    pickles.push(pickle);
  }

  function compileScenarioOutline(featureTags, backgroundSteps, scenarioOutline, language, pickles) {
    scenarioOutline.examples.filter(function(e) { return e.tableHeader != undefined; }).forEach(function (examples) {
      var variableCells = examples.tableHeader.cells;
      examples.tableBody.forEach(function (values) {
        var valueCells = values.cells;
        var steps = scenarioOutline.steps.length == 0 ? [] : [].concat(backgroundSteps);
        var tags = [].concat(featureTags).concat(scenarioOutline.tags).concat(examples.tags);

        scenarioOutline.steps.forEach(function (scenarioOutlineStep) {
          var stepText = interpolate(scenarioOutlineStep.text, variableCells, valueCells);
          var args = createPickleArguments(scenarioOutlineStep.argument, variableCells, valueCells);
          var pickleStep = {
            text: stepText,
            arguments: args,
            locations: [
              pickleLocation(values.location),
              pickleStepLocation(scenarioOutlineStep)
            ]
          };
          steps.push(pickleStep);
        });

        var pickle = {
          name: interpolate(scenarioOutline.name, variableCells, valueCells),
          language: language,
          steps: steps,
          tags: pickleTags(tags),
          locations: [
            pickleLocation(values.location),
            pickleLocation(scenarioOutline.location)
          ]
        };
        pickles.push(pickle);

      });
    });
  }

  function createPickleArguments(argument, variableCells, valueCells) {
    var result = [];
    if (!argument) return result;
    if (argument.type === 'DataTable') {
      var table = {
        rows: argument.rows.map(function (row) {
          return {
            cells: row.cells.map(function (cell) {
              return {
                location: pickleLocation(cell.location),
                value: interpolate(cell.value, variableCells, valueCells)
              };
            })
          };
        })
      };
      result.push(table);
    } else if (argument.type === 'DocString') {
      var docString = {
        location: pickleLocation(argument.location),
        content: interpolate(argument.content, variableCells, valueCells)
      };
      result.push(docString);
    } else {
      throw Error('Internal error');
    }
    return result;
  }

  function interpolate(name, variableCells, valueCells) {
    variableCells.forEach(function (variableCell, n) {
      var valueCell = valueCells[n];
      var search = new RegExp('<' + variableCell.value + '>', 'g');
      name = name.replace(search, valueCell.value);
    });
    return name;
  }

  function pickleSteps(scenarioDefinition) {
    return scenarioDefinition.steps.map(function (step) {
      return pickleStep(step);
    });
  }

  function pickleStep(step) {
    return {
      text: step.text,
      arguments: createPickleArguments(step.argument, [], []),
      locations: [pickleStepLocation(step)]
    }
  }

  function pickleStepLocation(step) {
    return {
      line: step.location.line,
      column: step.location.column + (step.keyword ? countSymbols(step.keyword) : 0)
    };
  }

  function pickleLocation(location) {
    return {
      line: location.line,
      column: location.column
    }
  }

  function pickleTags(tags) {
    return tags.map(function (tag) {
      return pickleTag(tag);
    });
  }

  function pickleTag(tag) {
    return {
      name: tag.name,
      location: pickleLocation(tag.location)
    };
  }
}

module.exports = Compiler;

},{"../count_symbols":214}],222:[function(require,module,exports){
function Token(line, location) {
  this.line = line;
  this.location = location;
  this.isEof = line == null;
};

Token.prototype.getTokenValue = function () {
  return this.isEof ? "EOF" : this.line.getLineText(-1);
};

Token.prototype.detach = function () {
  // TODO: Detach line, but is this really needed?
};

module.exports = Token;

},{}],223:[function(require,module,exports){
var DIALECTS = require('./dialects');
var Errors = require('./errors');
var LANGUAGE_PATTERN = /^\s*#\s*language\s*:\s*([a-zA-Z\-_]+)\s*$/;

module.exports = function TokenMatcher(defaultDialectName) {
  defaultDialectName = defaultDialectName || 'en';

  var dialect;
  var dialectName;
  var activeDocStringSeparator;
  var indentToRemove;

  function changeDialect(newDialectName, location) {
    var newDialect = DIALECTS[newDialectName];
    if(!newDialect) {
      throw Errors.NoSuchLanguageException.create(newDialectName, location);
    }

    dialectName = newDialectName;
    dialect = newDialect;
  }

  this.reset = function () {
    if(dialectName != defaultDialectName) changeDialect(defaultDialectName);
    activeDocStringSeparator = null;
    indentToRemove = 0;
  };

  this.reset();

  this.match_TagLine = function match_TagLine(token) {
    if(token.line.startsWith('@')) {
      setTokenMatched(token, 'TagLine', null, null, null, token.line.getTags());
      return true;
    }
    return false;
  };

  this.match_FeatureLine = function match_FeatureLine(token) {
    return matchTitleLine(token, 'FeatureLine', dialect.feature);
  };

  this.match_ScenarioLine = function match_ScenarioLine(token) {
    return matchTitleLine(token, 'ScenarioLine', dialect.scenario);
  };

  this.match_ScenarioOutlineLine = function match_ScenarioOutlineLine(token) {
    return matchTitleLine(token, 'ScenarioOutlineLine', dialect.scenarioOutline);
  };

  this.match_BackgroundLine = function match_BackgroundLine(token) {
    return matchTitleLine(token, 'BackgroundLine', dialect.background);
  };

  this.match_ExamplesLine = function match_ExamplesLine(token) {
    return matchTitleLine(token, 'ExamplesLine', dialect.examples);
  };

  this.match_TableRow = function match_TableRow(token) {
    if (token.line.startsWith('|')) {
      // TODO: indent
      setTokenMatched(token, 'TableRow', null, null, null, token.line.getTableCells());
      return true;
    }
    return false;
  };

  this.match_Empty = function match_Empty(token) {
    if (token.line.isEmpty) {
      setTokenMatched(token, 'Empty', null, null, 0);
      return true;
    }
    return false;
  };

  this.match_Comment = function match_Comment(token) {
    if(token.line.startsWith('#')) {
      var text = token.line.getLineText(0); //take the entire line, including leading space
      setTokenMatched(token, 'Comment', text, null, 0);
      return true;
    }
    return false;
  };

  this.match_Language = function match_Language(token) {
    var match;
    if(match = token.line.trimmedLineText.match(LANGUAGE_PATTERN)) {
      var newDialectName = match[1];
      setTokenMatched(token, 'Language', newDialectName);

      changeDialect(newDialectName, token.location);
      return true;
    }
    return false;
  };

  this.match_DocStringSeparator = function match_DocStringSeparator(token) {
    return activeDocStringSeparator == null
      ?
      // open
      _match_DocStringSeparator(token, '"""', true) ||
      _match_DocStringSeparator(token, '```', true)
      :
      // close
      _match_DocStringSeparator(token, activeDocStringSeparator, false);
  };

  function _match_DocStringSeparator(token, separator, isOpen) {
    if (token.line.startsWith(separator)) {
      var contentType = null;
      if (isOpen) {
        contentType = token.line.getRestTrimmed(separator.length);
        activeDocStringSeparator = separator;
        indentToRemove = token.line.indent;
      } else {
        activeDocStringSeparator = null;
        indentToRemove = 0;
      }

      // TODO: Use the separator as keyword. That's needed for pretty printing.
      setTokenMatched(token, 'DocStringSeparator', contentType);
      return true;
    }
    return false;
  }

  this.match_EOF = function match_EOF(token) {
    if(token.isEof) {
      setTokenMatched(token, 'EOF');
      return true;
    }
    return false;
  };

  this.match_StepLine = function match_StepLine(token) {
    var keywords = []
      .concat(dialect.given)
      .concat(dialect.when)
      .concat(dialect.then)
      .concat(dialect.and)
      .concat(dialect.but);
    var length = keywords.length;
    for(var i = 0, keyword; i < length; i++) {
      var keyword = keywords[i];

      if (token.line.startsWith(keyword)) {
        var title = token.line.getRestTrimmed(keyword.length);
        setTokenMatched(token, 'StepLine', title, keyword);
        return true;
      }
    }
    return false;
  };

  this.match_Other = function match_Other(token) {
    var text = token.line.getLineText(indentToRemove); //take the entire line, except removing DocString indents
    setTokenMatched(token, 'Other', unescapeDocString(text), null, 0);
    return true;
  };

  function matchTitleLine(token, tokenType, keywords) {
    var length = keywords.length;
    for(var i = 0, keyword; i < length; i++) {
      var keyword = keywords[i];

      if (token.line.startsWithTitleKeyword(keyword)) {
        var title = token.line.getRestTrimmed(keyword.length + ':'.length);
        setTokenMatched(token, tokenType, title, keyword);
        return true;
      }
    }
    return false;
  }

  function setTokenMatched(token, matchedType, text, keyword, indent, items) {
    token.matchedType = matchedType;
    token.matchedText = text;
    token.matchedKeyword = keyword;
    token.matchedIndent = (typeof indent === 'number') ? indent : (token.line == null ? 0 : token.line.indent);
    token.matchedItems = items || [];

    token.location.column = token.matchedIndent + 1;
    token.matchedGherkinDialect = dialectName;
  }

  function unescapeDocString(text) {
    return activeDocStringSeparator != null ? text.replace("\\\"\\\"\\\"", "\"\"\"") : text;
  }
};

},{"./dialects":215,"./errors":216}],224:[function(require,module,exports){
var Token = require('./token');
var GherkinLine = require('./gherkin_line');

/**
 * The scanner reads a gherkin doc (typically read from a .feature file) and creates a token for each line. 
 * The tokens are passed to the parser, which outputs an AST (Abstract Syntax Tree).
 * 
 * If the scanner sees a `#` language header, it will reconfigure itself dynamically to look for 
 * Gherkin keywords for the associated language. The keywords are defined in gherkin-languages.json.
 */
module.exports = function TokenScanner(source) {
  var lines = source.split(/\r?\n/);
  if(lines.length > 0 && lines[lines.length-1].trim() == '') {
    lines.pop();
  }
  var lineNumber = 0;

  this.read = function () {
    var line = lines[lineNumber++];
    var location = {line: lineNumber, column: 0};
    return line == null ? new Token(null, location) : new Token(new GherkinLine(line, lineNumber), location);
  }
};

},{"./gherkin_line":219,"./token":222}],225:[function(require,module,exports){
(function (process){
exports.alphasort = alphasort
exports.alphasorti = alphasorti
exports.setopts = setopts
exports.ownProp = ownProp
exports.makeAbs = makeAbs
exports.finish = finish
exports.mark = mark
exports.isIgnored = isIgnored
exports.childrenIgnored = childrenIgnored

function ownProp (obj, field) {
  return Object.prototype.hasOwnProperty.call(obj, field)
}

var path = require("path")
var minimatch = require("minimatch")
var isAbsolute = require("path-is-absolute")
var Minimatch = minimatch.Minimatch

function alphasorti (a, b) {
  return a.toLowerCase().localeCompare(b.toLowerCase())
}

function alphasort (a, b) {
  return a.localeCompare(b)
}

function setupIgnores (self, options) {
  self.ignore = options.ignore || []

  if (!Array.isArray(self.ignore))
    self.ignore = [self.ignore]

  if (self.ignore.length) {
    self.ignore = self.ignore.map(ignoreMap)
  }
}

// ignore patterns are always in dot:true mode.
function ignoreMap (pattern) {
  var gmatcher = null
  if (pattern.slice(-3) === '/**') {
    var gpattern = pattern.replace(/(\/\*\*)+$/, '')
    gmatcher = new Minimatch(gpattern, { dot: true })
  }

  return {
    matcher: new Minimatch(pattern, { dot: true }),
    gmatcher: gmatcher
  }
}

function setopts (self, pattern, options) {
  if (!options)
    options = {}

  // base-matching: just use globstar for that.
  if (options.matchBase && -1 === pattern.indexOf("/")) {
    if (options.noglobstar) {
      throw new Error("base matching requires globstar")
    }
    pattern = "**/" + pattern
  }

  self.silent = !!options.silent
  self.pattern = pattern
  self.strict = options.strict !== false
  self.realpath = !!options.realpath
  self.realpathCache = options.realpathCache || Object.create(null)
  self.follow = !!options.follow
  self.dot = !!options.dot
  self.mark = !!options.mark
  self.nodir = !!options.nodir
  if (self.nodir)
    self.mark = true
  self.sync = !!options.sync
  self.nounique = !!options.nounique
  self.nonull = !!options.nonull
  self.nosort = !!options.nosort
  self.nocase = !!options.nocase
  self.stat = !!options.stat
  self.noprocess = !!options.noprocess
  self.absolute = !!options.absolute

  self.maxLength = options.maxLength || Infinity
  self.cache = options.cache || Object.create(null)
  self.statCache = options.statCache || Object.create(null)
  self.symlinks = options.symlinks || Object.create(null)

  setupIgnores(self, options)

  self.changedCwd = false
  var cwd = process.cwd()
  if (!ownProp(options, "cwd"))
    self.cwd = cwd
  else {
    self.cwd = path.resolve(options.cwd)
    self.changedCwd = self.cwd !== cwd
  }

  self.root = options.root || path.resolve(self.cwd, "/")
  self.root = path.resolve(self.root)
  if (process.platform === "win32")
    self.root = self.root.replace(/\\/g, "/")

  // TODO: is an absolute `cwd` supposed to be resolved against `root`?
  // e.g. { cwd: '/test', root: __dirname } === path.join(__dirname, '/test')
  self.cwdAbs = isAbsolute(self.cwd) ? self.cwd : makeAbs(self, self.cwd)
  if (process.platform === "win32")
    self.cwdAbs = self.cwdAbs.replace(/\\/g, "/")
  self.nomount = !!options.nomount

  // disable comments and negation in Minimatch.
  // Note that they are not supported in Glob itself anyway.
  options.nonegate = true
  options.nocomment = true

  self.minimatch = new Minimatch(pattern, options)
  self.options = self.minimatch.options
}

function finish (self) {
  var nou = self.nounique
  var all = nou ? [] : Object.create(null)

  for (var i = 0, l = self.matches.length; i < l; i ++) {
    var matches = self.matches[i]
    if (!matches || Object.keys(matches).length === 0) {
      if (self.nonull) {
        // do like the shell, and spit out the literal glob
        var literal = self.minimatch.globSet[i]
        if (nou)
          all.push(literal)
        else
          all[literal] = true
      }
    } else {
      // had matches
      var m = Object.keys(matches)
      if (nou)
        all.push.apply(all, m)
      else
        m.forEach(function (m) {
          all[m] = true
        })
    }
  }

  if (!nou)
    all = Object.keys(all)

  if (!self.nosort)
    all = all.sort(self.nocase ? alphasorti : alphasort)

  // at *some* point we statted all of these
  if (self.mark) {
    for (var i = 0; i < all.length; i++) {
      all[i] = self._mark(all[i])
    }
    if (self.nodir) {
      all = all.filter(function (e) {
        var notDir = !(/\/$/.test(e))
        var c = self.cache[e] || self.cache[makeAbs(self, e)]
        if (notDir && c)
          notDir = c !== 'DIR' && !Array.isArray(c)
        return notDir
      })
    }
  }

  if (self.ignore.length)
    all = all.filter(function(m) {
      return !isIgnored(self, m)
    })

  self.found = all
}

function mark (self, p) {
  var abs = makeAbs(self, p)
  var c = self.cache[abs]
  var m = p
  if (c) {
    var isDir = c === 'DIR' || Array.isArray(c)
    var slash = p.slice(-1) === '/'

    if (isDir && !slash)
      m += '/'
    else if (!isDir && slash)
      m = m.slice(0, -1)

    if (m !== p) {
      var mabs = makeAbs(self, m)
      self.statCache[mabs] = self.statCache[abs]
      self.cache[mabs] = self.cache[abs]
    }
  }

  return m
}

// lotta situps...
function makeAbs (self, f) {
  var abs = f
  if (f.charAt(0) === '/') {
    abs = path.join(self.root, f)
  } else if (isAbsolute(f) || f === '') {
    abs = f
  } else if (self.changedCwd) {
    abs = path.resolve(self.cwd, f)
  } else {
    abs = path.resolve(f)
  }

  if (process.platform === 'win32')
    abs = abs.replace(/\\/g, '/')

  return abs
}


// Return true, if pattern ends with globstar '**', for the accompanying parent directory.
// Ex:- If node_modules/** is the pattern, add 'node_modules' to ignore list along with it's contents
function isIgnored (self, path) {
  if (!self.ignore.length)
    return false

  return self.ignore.some(function(item) {
    return item.matcher.match(path) || !!(item.gmatcher && item.gmatcher.match(path))
  })
}

function childrenIgnored (self, path) {
  if (!self.ignore.length)
    return false

  return self.ignore.some(function(item) {
    return !!(item.gmatcher && item.gmatcher.match(path))
  })
}

}).call(this,require('_process'))
},{"_process":255,"minimatch":243,"path":251,"path-is-absolute":252}],226:[function(require,module,exports){
(function (process){
// Approach:
//
// 1. Get the minimatch set
// 2. For each pattern in the set, PROCESS(pattern, false)
// 3. Store matches per-set, then uniq them
//
// PROCESS(pattern, inGlobStar)
// Get the first [n] items from pattern that are all strings
// Join these together.  This is PREFIX.
//   If there is no more remaining, then stat(PREFIX) and
//   add to matches if it succeeds.  END.
//
// If inGlobStar and PREFIX is symlink and points to dir
//   set ENTRIES = []
// else readdir(PREFIX) as ENTRIES
//   If fail, END
//
// with ENTRIES
//   If pattern[n] is GLOBSTAR
//     // handle the case where the globstar match is empty
//     // by pruning it out, and testing the resulting pattern
//     PROCESS(pattern[0..n] + pattern[n+1 .. $], false)
//     // handle other cases.
//     for ENTRY in ENTRIES (not dotfiles)
//       // attach globstar + tail onto the entry
//       // Mark that this entry is a globstar match
//       PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true)
//
//   else // not globstar
//     for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot)
//       Test ENTRY against pattern[n]
//       If fails, continue
//       If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $])
//
// Caveat:
//   Cache all stats and readdirs results to minimize syscall.  Since all
//   we ever care about is existence and directory-ness, we can just keep
//   `true` for files, and [children,...] for directories, or `false` for
//   things that don't exist.

module.exports = glob

var fs = require('fs')
var rp = require('fs.realpath')
var minimatch = require('minimatch')
var Minimatch = minimatch.Minimatch
var inherits = require('inherits')
var EE = require('events').EventEmitter
var path = require('path')
var assert = require('assert')
var isAbsolute = require('path-is-absolute')
var globSync = require('./sync.js')
var common = require('./common.js')
var alphasort = common.alphasort
var alphasorti = common.alphasorti
var setopts = common.setopts
var ownProp = common.ownProp
var inflight = require('inflight')
var util = require('util')
var childrenIgnored = common.childrenIgnored
var isIgnored = common.isIgnored

var once = require('once')

function glob (pattern, options, cb) {
  if (typeof options === 'function') cb = options, options = {}
  if (!options) options = {}

  if (options.sync) {
    if (cb)
      throw new TypeError('callback provided to sync glob')
    return globSync(pattern, options)
  }

  return new Glob(pattern, options, cb)
}

glob.sync = globSync
var GlobSync = glob.GlobSync = globSync.GlobSync

// old api surface
glob.glob = glob

function extend (origin, add) {
  if (add === null || typeof add !== 'object') {
    return origin
  }

  var keys = Object.keys(add)
  var i = keys.length
  while (i--) {
    origin[keys[i]] = add[keys[i]]
  }
  return origin
}

glob.hasMagic = function (pattern, options_) {
  var options = extend({}, options_)
  options.noprocess = true

  var g = new Glob(pattern, options)
  var set = g.minimatch.set

  if (!pattern)
    return false

  if (set.length > 1)
    return true

  for (var j = 0; j < set[0].length; j++) {
    if (typeof set[0][j] !== 'string')
      return true
  }

  return false
}

glob.Glob = Glob
inherits(Glob, EE)
function Glob (pattern, options, cb) {
  if (typeof options === 'function') {
    cb = options
    options = null
  }

  if (options && options.sync) {
    if (cb)
      throw new TypeError('callback provided to sync glob')
    return new GlobSync(pattern, options)
  }

  if (!(this instanceof Glob))
    return new Glob(pattern, options, cb)

  setopts(this, pattern, options)
  this._didRealPath = false

  // process each pattern in the minimatch set
  var n = this.minimatch.set.length

  // The matches are stored as {<filename>: true,...} so that
  // duplicates are automagically pruned.
  // Later, we do an Object.keys() on these.
  // Keep them as a list so we can fill in when nonull is set.
  this.matches = new Array(n)

  if (typeof cb === 'function') {
    cb = once(cb)
    this.on('error', cb)
    this.on('end', function (matches) {
      cb(null, matches)
    })
  }

  var self = this
  this._processing = 0

  this._emitQueue = []
  this._processQueue = []
  this.paused = false

  if (this.noprocess)
    return this

  if (n === 0)
    return done()

  var sync = true
  for (var i = 0; i < n; i ++) {
    this._process(this.minimatch.set[i], i, false, done)
  }
  sync = false

  function done () {
    --self._processing
    if (self._processing <= 0) {
      if (sync) {
        process.nextTick(function () {
          self._finish()
        })
      } else {
        self._finish()
      }
    }
  }
}

Glob.prototype._finish = function () {
  assert(this instanceof Glob)
  if (this.aborted)
    return

  if (this.realpath && !this._didRealpath)
    return this._realpath()

  common.finish(this)
  this.emit('end', this.found)
}

Glob.prototype._realpath = function () {
  if (this._didRealpath)
    return

  this._didRealpath = true

  var n = this.matches.length
  if (n === 0)
    return this._finish()

  var self = this
  for (var i = 0; i < this.matches.length; i++)
    this._realpathSet(i, next)

  function next () {
    if (--n === 0)
      self._finish()
  }
}

Glob.prototype._realpathSet = function (index, cb) {
  var matchset = this.matches[index]
  if (!matchset)
    return cb()

  var found = Object.keys(matchset)
  var self = this
  var n = found.length

  if (n === 0)
    return cb()

  var set = this.matches[index] = Object.create(null)
  found.forEach(function (p, i) {
    // If there's a problem with the stat, then it means that
    // one or more of the links in the realpath couldn't be
    // resolved.  just return the abs value in that case.
    p = self._makeAbs(p)
    rp.realpath(p, self.realpathCache, function (er, real) {
      if (!er)
        set[real] = true
      else if (er.syscall === 'stat')
        set[p] = true
      else
        self.emit('error', er) // srsly wtf right here

      if (--n === 0) {
        self.matches[index] = set
        cb()
      }
    })
  })
}

Glob.prototype._mark = function (p) {
  return common.mark(this, p)
}

Glob.prototype._makeAbs = function (f) {
  return common.makeAbs(this, f)
}

Glob.prototype.abort = function () {
  this.aborted = true
  this.emit('abort')
}

Glob.prototype.pause = function () {
  if (!this.paused) {
    this.paused = true
    this.emit('pause')
  }
}

Glob.prototype.resume = function () {
  if (this.paused) {
    this.emit('resume')
    this.paused = false
    if (this._emitQueue.length) {
      var eq = this._emitQueue.slice(0)
      this._emitQueue.length = 0
      for (var i = 0; i < eq.length; i ++) {
        var e = eq[i]
        this._emitMatch(e[0], e[1])
      }
    }
    if (this._processQueue.length) {
      var pq = this._processQueue.slice(0)
      this._processQueue.length = 0
      for (var i = 0; i < pq.length; i ++) {
        var p = pq[i]
        this._processing--
        this._process(p[0], p[1], p[2], p[3])
      }
    }
  }
}

Glob.prototype._process = function (pattern, index, inGlobStar, cb) {
  assert(this instanceof Glob)
  assert(typeof cb === 'function')

  if (this.aborted)
    return

  this._processing++
  if (this.paused) {
    this._processQueue.push([pattern, index, inGlobStar, cb])
    return
  }

  //console.error('PROCESS %d', this._processing, pattern)

  // Get the first [n] parts of pattern that are all strings.
  var n = 0
  while (typeof pattern[n] === 'string') {
    n ++
  }
  // now n is the index of the first one that is *not* a string.

  // see if there's anything else
  var prefix
  switch (n) {
    // if not, then this is rather simple
    case pattern.length:
      this._processSimple(pattern.join('/'), index, cb)
      return

    case 0:
      // pattern *starts* with some non-trivial item.
      // going to readdir(cwd), but not include the prefix in matches.
      prefix = null
      break

    default:
      // pattern has some string bits in the front.
      // whatever it starts with, whether that's 'absolute' like /foo/bar,
      // or 'relative' like '../baz'
      prefix = pattern.slice(0, n).join('/')
      break
  }

  var remain = pattern.slice(n)

  // get the list of entries.
  var read
  if (prefix === null)
    read = '.'
  else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
    if (!prefix || !isAbsolute(prefix))
      prefix = '/' + prefix
    read = prefix
  } else
    read = prefix

  var abs = this._makeAbs(read)

  //if ignored, skip _processing
  if (childrenIgnored(this, read))
    return cb()

  var isGlobStar = remain[0] === minimatch.GLOBSTAR
  if (isGlobStar)
    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb)
  else
    this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb)
}

Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) {
  var self = this
  this._readdir(abs, inGlobStar, function (er, entries) {
    return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
  })
}

Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {

  // if the abs isn't a dir, then nothing can match!
  if (!entries)
    return cb()

  // It will only match dot entries if it starts with a dot, or if
  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
  var pn = remain[0]
  var negate = !!this.minimatch.negate
  var rawGlob = pn._glob
  var dotOk = this.dot || rawGlob.charAt(0) === '.'

  var matchedEntries = []
  for (var i = 0; i < entries.length; i++) {
    var e = entries[i]
    if (e.charAt(0) !== '.' || dotOk) {
      var m
      if (negate && !prefix) {
        m = !e.match(pn)
      } else {
        m = e.match(pn)
      }
      if (m)
        matchedEntries.push(e)
    }
  }

  //console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries)

  var len = matchedEntries.length
  // If there are no matched entries, then nothing matches.
  if (len === 0)
    return cb()

  // if this is the last remaining pattern bit, then no need for
  // an additional stat *unless* the user has specified mark or
  // stat explicitly.  We know they exist, since readdir returned
  // them.

  if (remain.length === 1 && !this.mark && !this.stat) {
    if (!this.matches[index])
      this.matches[index] = Object.create(null)

    for (var i = 0; i < len; i ++) {
      var e = matchedEntries[i]
      if (prefix) {
        if (prefix !== '/')
          e = prefix + '/' + e
        else
          e = prefix + e
      }

      if (e.charAt(0) === '/' && !this.nomount) {
        e = path.join(this.root, e)
      }
      this._emitMatch(index, e)
    }
    // This was the last one, and no stats were needed
    return cb()
  }

  // now test all matched entries as stand-ins for that part
  // of the pattern.
  remain.shift()
  for (var i = 0; i < len; i ++) {
    var e = matchedEntries[i]
    var newPattern
    if (prefix) {
      if (prefix !== '/')
        e = prefix + '/' + e
      else
        e = prefix + e
    }
    this._process([e].concat(remain), index, inGlobStar, cb)
  }
  cb()
}

Glob.prototype._emitMatch = function (index, e) {
  if (this.aborted)
    return

  if (isIgnored(this, e))
    return

  if (this.paused) {
    this._emitQueue.push([index, e])
    return
  }

  var abs = isAbsolute(e) ? e : this._makeAbs(e)

  if (this.mark)
    e = this._mark(e)

  if (this.absolute)
    e = abs

  if (this.matches[index][e])
    return

  if (this.nodir) {
    var c = this.cache[abs]
    if (c === 'DIR' || Array.isArray(c))
      return
  }

  this.matches[index][e] = true

  var st = this.statCache[abs]
  if (st)
    this.emit('stat', e, st)

  this.emit('match', e)
}

Glob.prototype._readdirInGlobStar = function (abs, cb) {
  if (this.aborted)
    return

  // follow all symlinked directories forever
  // just proceed as if this is a non-globstar situation
  if (this.follow)
    return this._readdir(abs, false, cb)

  var lstatkey = 'lstat\0' + abs
  var self = this
  var lstatcb = inflight(lstatkey, lstatcb_)

  if (lstatcb)
    fs.lstat(abs, lstatcb)

  function lstatcb_ (er, lstat) {
    if (er && er.code === 'ENOENT')
      return cb()

    var isSym = lstat && lstat.isSymbolicLink()
    self.symlinks[abs] = isSym

    // If it's not a symlink or a dir, then it's definitely a regular file.
    // don't bother doing a readdir in that case.
    if (!isSym && lstat && !lstat.isDirectory()) {
      self.cache[abs] = 'FILE'
      cb()
    } else
      self._readdir(abs, false, cb)
  }
}

Glob.prototype._readdir = function (abs, inGlobStar, cb) {
  if (this.aborted)
    return

  cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb)
  if (!cb)
    return

  //console.error('RD %j %j', +inGlobStar, abs)
  if (inGlobStar && !ownProp(this.symlinks, abs))
    return this._readdirInGlobStar(abs, cb)

  if (ownProp(this.cache, abs)) {
    var c = this.cache[abs]
    if (!c || c === 'FILE')
      return cb()

    if (Array.isArray(c))
      return cb(null, c)
  }

  var self = this
  fs.readdir(abs, readdirCb(this, abs, cb))
}

function readdirCb (self, abs, cb) {
  return function (er, entries) {
    if (er)
      self._readdirError(abs, er, cb)
    else
      self._readdirEntries(abs, entries, cb)
  }
}

Glob.prototype._readdirEntries = function (abs, entries, cb) {
  if (this.aborted)
    return

  // if we haven't asked to stat everything, then just
  // assume that everything in there exists, so we can avoid
  // having to stat it a second time.
  if (!this.mark && !this.stat) {
    for (var i = 0; i < entries.length; i ++) {
      var e = entries[i]
      if (abs === '/')
        e = abs + e
      else
        e = abs + '/' + e
      this.cache[e] = true
    }
  }

  this.cache[abs] = entries
  return cb(null, entries)
}

Glob.prototype._readdirError = function (f, er, cb) {
  if (this.aborted)
    return

  // handle errors, and cache the information
  switch (er.code) {
    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
    case 'ENOTDIR': // totally normal. means it *does* exist.
      var abs = this._makeAbs(f)
      this.cache[abs] = 'FILE'
      if (abs === this.cwdAbs) {
        var error = new Error(er.code + ' invalid cwd ' + this.cwd)
        error.path = this.cwd
        error.code = er.code
        this.emit('error', error)
        this.abort()
      }
      break

    case 'ENOENT': // not terribly unusual
    case 'ELOOP':
    case 'ENAMETOOLONG':
    case 'UNKNOWN':
      this.cache[this._makeAbs(f)] = false
      break

    default: // some unusual error.  Treat as failure.
      this.cache[this._makeAbs(f)] = false
      if (this.strict) {
        this.emit('error', er)
        // If the error is handled, then we abort
        // if not, we threw out of here
        this.abort()
      }
      if (!this.silent)
        console.error('glob error', er)
      break
  }

  return cb()
}

Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) {
  var self = this
  this._readdir(abs, inGlobStar, function (er, entries) {
    self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
  })
}


Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
  //console.error('pgs2', prefix, remain[0], entries)

  // no entries means not a dir, so it can never have matches
  // foo.txt/** doesn't match foo.txt
  if (!entries)
    return cb()

  // test without the globstar, and with every child both below
  // and replacing the globstar.
  var remainWithoutGlobStar = remain.slice(1)
  var gspref = prefix ? [ prefix ] : []
  var noGlobStar = gspref.concat(remainWithoutGlobStar)

  // the noGlobStar pattern exits the inGlobStar state
  this._process(noGlobStar, index, false, cb)

  var isSym = this.symlinks[abs]
  var len = entries.length

  // If it's a symlink, and we're in a globstar, then stop
  if (isSym && inGlobStar)
    return cb()

  for (var i = 0; i < len; i++) {
    var e = entries[i]
    if (e.charAt(0) === '.' && !this.dot)
      continue

    // these two cases enter the inGlobStar state
    var instead = gspref.concat(entries[i], remainWithoutGlobStar)
    this._process(instead, index, true, cb)

    var below = gspref.concat(entries[i], remain)
    this._process(below, index, true, cb)
  }

  cb()
}

Glob.prototype._processSimple = function (prefix, index, cb) {
  // XXX review this.  Shouldn't it be doing the mounting etc
  // before doing stat?  kinda weird?
  var self = this
  this._stat(prefix, function (er, exists) {
    self._processSimple2(prefix, index, er, exists, cb)
  })
}
Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) {

  //console.error('ps2', prefix, exists)

  if (!this.matches[index])
    this.matches[index] = Object.create(null)

  // If it doesn't exist, then just mark the lack of results
  if (!exists)
    return cb()

  if (prefix && isAbsolute(prefix) && !this.nomount) {
    var trail = /[\/\\]$/.test(prefix)
    if (prefix.charAt(0) === '/') {
      prefix = path.join(this.root, prefix)
    } else {
      prefix = path.resolve(this.root, prefix)
      if (trail)
        prefix += '/'
    }
  }

  if (process.platform === 'win32')
    prefix = prefix.replace(/\\/g, '/')

  // Mark this as a match
  this._emitMatch(index, prefix)
  cb()
}

// Returns either 'DIR', 'FILE', or false
Glob.prototype._stat = function (f, cb) {
  var abs = this._makeAbs(f)
  var needDir = f.slice(-1) === '/'

  if (f.length > this.maxLength)
    return cb()

  if (!this.stat && ownProp(this.cache, abs)) {
    var c = this.cache[abs]

    if (Array.isArray(c))
      c = 'DIR'

    // It exists, but maybe not how we need it
    if (!needDir || c === 'DIR')
      return cb(null, c)

    if (needDir && c === 'FILE')
      return cb()

    // otherwise we have to stat, because maybe c=true
    // if we know it exists, but not what it is.
  }

  var exists
  var stat = this.statCache[abs]
  if (stat !== undefined) {
    if (stat === false)
      return cb(null, stat)
    else {
      var type = stat.isDirectory() ? 'DIR' : 'FILE'
      if (needDir && type === 'FILE')
        return cb()
      else
        return cb(null, type, stat)
    }
  }

  var self = this
  var statcb = inflight('stat\0' + abs, lstatcb_)
  if (statcb)
    fs.lstat(abs, statcb)

  function lstatcb_ (er, lstat) {
    if (lstat && lstat.isSymbolicLink()) {
      // If it's a symlink, then treat it as the target, unless
      // the target does not exist, then treat it as a file.
      return fs.stat(abs, function (er, stat) {
        if (er)
          self._stat2(f, abs, null, lstat, cb)
        else
          self._stat2(f, abs, er, stat, cb)
      })
    } else {
      self._stat2(f, abs, er, lstat, cb)
    }
  }
}

Glob.prototype._stat2 = function (f, abs, er, stat, cb) {
  if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
    this.statCache[abs] = false
    return cb()
  }

  var needDir = f.slice(-1) === '/'
  this.statCache[abs] = stat

  if (abs.slice(-1) === '/' && stat && !stat.isDirectory())
    return cb(null, false, stat)

  var c = true
  if (stat)
    c = stat.isDirectory() ? 'DIR' : 'FILE'
  this.cache[abs] = this.cache[abs] || c

  if (needDir && c === 'FILE')
    return cb()

  return cb(null, c, stat)
}

}).call(this,require('_process'))
},{"./common.js":225,"./sync.js":227,"_process":255,"assert":5,"events":206,"fs":39,"fs.realpath":209,"inflight":234,"inherits":235,"minimatch":243,"once":249,"path":251,"path-is-absolute":252,"util":309}],227:[function(require,module,exports){
(function (process){
module.exports = globSync
globSync.GlobSync = GlobSync

var fs = require('fs')
var rp = require('fs.realpath')
var minimatch = require('minimatch')
var Minimatch = minimatch.Minimatch
var Glob = require('./glob.js').Glob
var util = require('util')
var path = require('path')
var assert = require('assert')
var isAbsolute = require('path-is-absolute')
var common = require('./common.js')
var alphasort = common.alphasort
var alphasorti = common.alphasorti
var setopts = common.setopts
var ownProp = common.ownProp
var childrenIgnored = common.childrenIgnored
var isIgnored = common.isIgnored

function globSync (pattern, options) {
  if (typeof options === 'function' || arguments.length === 3)
    throw new TypeError('callback provided to sync glob\n'+
                        'See: https://github.com/isaacs/node-glob/issues/167')

  return new GlobSync(pattern, options).found
}

function GlobSync (pattern, options) {
  if (!pattern)
    throw new Error('must provide pattern')

  if (typeof options === 'function' || arguments.length === 3)
    throw new TypeError('callback provided to sync glob\n'+
                        'See: https://github.com/isaacs/node-glob/issues/167')

  if (!(this instanceof GlobSync))
    return new GlobSync(pattern, options)

  setopts(this, pattern, options)

  if (this.noprocess)
    return this

  var n = this.minimatch.set.length
  this.matches = new Array(n)
  for (var i = 0; i < n; i ++) {
    this._process(this.minimatch.set[i], i, false)
  }
  this._finish()
}

GlobSync.prototype._finish = function () {
  assert(this instanceof GlobSync)
  if (this.realpath) {
    var self = this
    this.matches.forEach(function (matchset, index) {
      var set = self.matches[index] = Object.create(null)
      for (var p in matchset) {
        try {
          p = self._makeAbs(p)
          var real = rp.realpathSync(p, self.realpathCache)
          set[real] = true
        } catch (er) {
          if (er.syscall === 'stat')
            set[self._makeAbs(p)] = true
          else
            throw er
        }
      }
    })
  }
  common.finish(this)
}


GlobSync.prototype._process = function (pattern, index, inGlobStar) {
  assert(this instanceof GlobSync)

  // Get the first [n] parts of pattern that are all strings.
  var n = 0
  while (typeof pattern[n] === 'string') {
    n ++
  }
  // now n is the index of the first one that is *not* a string.

  // See if there's anything else
  var prefix
  switch (n) {
    // if not, then this is rather simple
    case pattern.length:
      this._processSimple(pattern.join('/'), index)
      return

    case 0:
      // pattern *starts* with some non-trivial item.
      // going to readdir(cwd), but not include the prefix in matches.
      prefix = null
      break

    default:
      // pattern has some string bits in the front.
      // whatever it starts with, whether that's 'absolute' like /foo/bar,
      // or 'relative' like '../baz'
      prefix = pattern.slice(0, n).join('/')
      break
  }

  var remain = pattern.slice(n)

  // get the list of entries.
  var read
  if (prefix === null)
    read = '.'
  else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
    if (!prefix || !isAbsolute(prefix))
      prefix = '/' + prefix
    read = prefix
  } else
    read = prefix

  var abs = this._makeAbs(read)

  //if ignored, skip processing
  if (childrenIgnored(this, read))
    return

  var isGlobStar = remain[0] === minimatch.GLOBSTAR
  if (isGlobStar)
    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar)
  else
    this._processReaddir(prefix, read, abs, remain, index, inGlobStar)
}


GlobSync.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) {
  var entries = this._readdir(abs, inGlobStar)

  // if the abs isn't a dir, then nothing can match!
  if (!entries)
    return

  // It will only match dot entries if it starts with a dot, or if
  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
  var pn = remain[0]
  var negate = !!this.minimatch.negate
  var rawGlob = pn._glob
  var dotOk = this.dot || rawGlob.charAt(0) === '.'

  var matchedEntries = []
  for (var i = 0; i < entries.length; i++) {
    var e = entries[i]
    if (e.charAt(0) !== '.' || dotOk) {
      var m
      if (negate && !prefix) {
        m = !e.match(pn)
      } else {
        m = e.match(pn)
      }
      if (m)
        matchedEntries.push(e)
    }
  }

  var len = matchedEntries.length
  // If there are no matched entries, then nothing matches.
  if (len === 0)
    return

  // if this is the last remaining pattern bit, then no need for
  // an additional stat *unless* the user has specified mark or
  // stat explicitly.  We know they exist, since readdir returned
  // them.

  if (remain.length === 1 && !this.mark && !this.stat) {
    if (!this.matches[index])
      this.matches[index] = Object.create(null)

    for (var i = 0; i < len; i ++) {
      var e = matchedEntries[i]
      if (prefix) {
        if (prefix.slice(-1) !== '/')
          e = prefix + '/' + e
        else
          e = prefix + e
      }

      if (e.charAt(0) === '/' && !this.nomount) {
        e = path.join(this.root, e)
      }
      this._emitMatch(index, e)
    }
    // This was the last one, and no stats were needed
    return
  }

  // now test all matched entries as stand-ins for that part
  // of the pattern.
  remain.shift()
  for (var i = 0; i < len; i ++) {
    var e = matchedEntries[i]
    var newPattern
    if (prefix)
      newPattern = [prefix, e]
    else
      newPattern = [e]
    this._process(newPattern.concat(remain), index, inGlobStar)
  }
}


GlobSync.prototype._emitMatch = function (index, e) {
  if (isIgnored(this, e))
    return

  var abs = this._makeAbs(e)

  if (this.mark)
    e = this._mark(e)

  if (this.absolute) {
    e = abs
  }

  if (this.matches[index][e])
    return

  if (this.nodir) {
    var c = this.cache[abs]
    if (c === 'DIR' || Array.isArray(c))
      return
  }

  this.matches[index][e] = true

  if (this.stat)
    this._stat(e)
}


GlobSync.prototype._readdirInGlobStar = function (abs) {
  // follow all symlinked directories forever
  // just proceed as if this is a non-globstar situation
  if (this.follow)
    return this._readdir(abs, false)

  var entries
  var lstat
  var stat
  try {
    lstat = fs.lstatSync(abs)
  } catch (er) {
    if (er.code === 'ENOENT') {
      // lstat failed, doesn't exist
      return null
    }
  }

  var isSym = lstat && lstat.isSymbolicLink()
  this.symlinks[abs] = isSym

  // If it's not a symlink or a dir, then it's definitely a regular file.
  // don't bother doing a readdir in that case.
  if (!isSym && lstat && !lstat.isDirectory())
    this.cache[abs] = 'FILE'
  else
    entries = this._readdir(abs, false)

  return entries
}

GlobSync.prototype._readdir = function (abs, inGlobStar) {
  var entries

  if (inGlobStar && !ownProp(this.symlinks, abs))
    return this._readdirInGlobStar(abs)

  if (ownProp(this.cache, abs)) {
    var c = this.cache[abs]
    if (!c || c === 'FILE')
      return null

    if (Array.isArray(c))
      return c
  }

  try {
    return this._readdirEntries(abs, fs.readdirSync(abs))
  } catch (er) {
    this._readdirError(abs, er)
    return null
  }
}

GlobSync.prototype._readdirEntries = function (abs, entries) {
  // if we haven't asked to stat everything, then just
  // assume that everything in there exists, so we can avoid
  // having to stat it a second time.
  if (!this.mark && !this.stat) {
    for (var i = 0; i < entries.length; i ++) {
      var e = entries[i]
      if (abs === '/')
        e = abs + e
      else
        e = abs + '/' + e
      this.cache[e] = true
    }
  }

  this.cache[abs] = entries

  // mark and cache dir-ness
  return entries
}

GlobSync.prototype._readdirError = function (f, er) {
  // handle errors, and cache the information
  switch (er.code) {
    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
    case 'ENOTDIR': // totally normal. means it *does* exist.
      var abs = this._makeAbs(f)
      this.cache[abs] = 'FILE'
      if (abs === this.cwdAbs) {
        var error = new Error(er.code + ' invalid cwd ' + this.cwd)
        error.path = this.cwd
        error.code = er.code
        throw error
      }
      break

    case 'ENOENT': // not terribly unusual
    case 'ELOOP':
    case 'ENAMETOOLONG':
    case 'UNKNOWN':
      this.cache[this._makeAbs(f)] = false
      break

    default: // some unusual error.  Treat as failure.
      this.cache[this._makeAbs(f)] = false
      if (this.strict)
        throw er
      if (!this.silent)
        console.error('glob error', er)
      break
  }
}

GlobSync.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) {

  var entries = this._readdir(abs, inGlobStar)

  // no entries means not a dir, so it can never have matches
  // foo.txt/** doesn't match foo.txt
  if (!entries)
    return

  // test without the globstar, and with every child both below
  // and replacing the globstar.
  var remainWithoutGlobStar = remain.slice(1)
  var gspref = prefix ? [ prefix ] : []
  var noGlobStar = gspref.concat(remainWithoutGlobStar)

  // the noGlobStar pattern exits the inGlobStar state
  this._process(noGlobStar, index, false)

  var len = entries.length
  var isSym = this.symlinks[abs]

  // If it's a symlink, and we're in a globstar, then stop
  if (isSym && inGlobStar)
    return

  for (var i = 0; i < len; i++) {
    var e = entries[i]
    if (e.charAt(0) === '.' && !this.dot)
      continue

    // these two cases enter the inGlobStar state
    var instead = gspref.concat(entries[i], remainWithoutGlobStar)
    this._process(instead, index, true)

    var below = gspref.concat(entries[i], remain)
    this._process(below, index, true)
  }
}

GlobSync.prototype._processSimple = function (prefix, index) {
  // XXX review this.  Shouldn't it be doing the mounting etc
  // before doing stat?  kinda weird?
  var exists = this._stat(prefix)

  if (!this.matches[index])
    this.matches[index] = Object.create(null)

  // If it doesn't exist, then just mark the lack of results
  if (!exists)
    return

  if (prefix && isAbsolute(prefix) && !this.nomount) {
    var trail = /[\/\\]$/.test(prefix)
    if (prefix.charAt(0) === '/') {
      prefix = path.join(this.root, prefix)
    } else {
      prefix = path.resolve(this.root, prefix)
      if (trail)
        prefix += '/'
    }
  }

  if (process.platform === 'win32')
    prefix = prefix.replace(/\\/g, '/')

  // Mark this as a match
  this._emitMatch(index, prefix)
}

// Returns either 'DIR', 'FILE', or false
GlobSync.prototype._stat = function (f) {
  var abs = this._makeAbs(f)
  var needDir = f.slice(-1) === '/'

  if (f.length > this.maxLength)
    return false

  if (!this.stat && ownProp(this.cache, abs)) {
    var c = this.cache[abs]

    if (Array.isArray(c))
      c = 'DIR'

    // It exists, but maybe not how we need it
    if (!needDir || c === 'DIR')
      return c

    if (needDir && c === 'FILE')
      return false

    // otherwise we have to stat, because maybe c=true
    // if we know it exists, but not what it is.
  }

  var exists
  var stat = this.statCache[abs]
  if (!stat) {
    var lstat
    try {
      lstat = fs.lstatSync(abs)
    } catch (er) {
      if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
        this.statCache[abs] = false
        return false
      }
    }

    if (lstat && lstat.isSymbolicLink()) {
      try {
        stat = fs.statSync(abs)
      } catch (er) {
        stat = lstat
      }
    } else {
      stat = lstat
    }
  }

  this.statCache[abs] = stat

  var c = true
  if (stat)
    c = stat.isDirectory() ? 'DIR' : 'FILE'

  this.cache[abs] = this.cache[abs] || c

  if (needDir && c === 'FILE')
    return false

  return c
}

GlobSync.prototype._mark = function (p) {
  return common.mark(this, p)
}

GlobSync.prototype._makeAbs = function (f) {
  return common.makeAbs(this, f)
}

}).call(this,require('_process'))
},{"./common.js":225,"./glob.js":226,"_process":255,"assert":5,"fs":39,"fs.realpath":209,"minimatch":243,"path":251,"path-is-absolute":252,"util":309}],228:[function(require,module,exports){
'use strict'

var fs = require('fs')

module.exports = clone(fs)

function clone (obj) {
  if (obj === null || typeof obj !== 'object')
    return obj

  if (obj instanceof Object)
    var copy = { __proto__: obj.__proto__ }
  else
    var copy = Object.create(null)

  Object.getOwnPropertyNames(obj).forEach(function (key) {
    Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key))
  })

  return copy
}

},{"fs":39}],229:[function(require,module,exports){
(function (process){
var fs = require('fs')
var polyfills = require('./polyfills.js')
var legacy = require('./legacy-streams.js')
var queue = []

var util = require('util')

function noop () {}

var debug = noop
if (util.debuglog)
  debug = util.debuglog('gfs4')
else if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || ''))
  debug = function() {
    var m = util.format.apply(util, arguments)
    m = 'GFS4: ' + m.split(/\n/).join('\nGFS4: ')
    console.error(m)
  }

if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || '')) {
  process.on('exit', function() {
    debug(queue)
    require('assert').equal(queue.length, 0)
  })
}

module.exports = patch(require('./fs.js'))
if (process.env.TEST_GRACEFUL_FS_GLOBAL_PATCH) {
  module.exports = patch(fs)
}

// Always patch fs.close/closeSync, because we want to
// retry() whenever a close happens *anywhere* in the program.
// This is essential when multiple graceful-fs instances are
// in play at the same time.
module.exports.close =
fs.close = (function (fs$close) { return function (fd, cb) {
  return fs$close.call(fs, fd, function (err) {
    if (!err)
      retry()

    if (typeof cb === 'function')
      cb.apply(this, arguments)
  })
}})(fs.close)

module.exports.closeSync =
fs.closeSync = (function (fs$closeSync) { return function (fd) {
  // Note that graceful-fs also retries when fs.closeSync() fails.
  // Looks like a bug to me, although it's probably a harmless one.
  var rval = fs$closeSync.apply(fs, arguments)
  retry()
  return rval
}})(fs.closeSync)

function patch (fs) {
  // Everything that references the open() function needs to be in here
  polyfills(fs)
  fs.gracefulify = patch
  fs.FileReadStream = ReadStream;  // Legacy name.
  fs.FileWriteStream = WriteStream;  // Legacy name.
  fs.createReadStream = createReadStream
  fs.createWriteStream = createWriteStream
  var fs$readFile = fs.readFile
  fs.readFile = readFile
  function readFile (path, options, cb) {
    if (typeof options === 'function')
      cb = options, options = null

    return go$readFile(path, options, cb)

    function go$readFile (path, options, cb) {
      return fs$readFile(path, options, function (err) {
        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
          enqueue([go$readFile, [path, options, cb]])
        else {
          if (typeof cb === 'function')
            cb.apply(this, arguments)
          retry()
        }
      })
    }
  }

  var fs$writeFile = fs.writeFile
  fs.writeFile = writeFile
  function writeFile (path, data, options, cb) {
    if (typeof options === 'function')
      cb = options, options = null

    return go$writeFile(path, data, options, cb)

    function go$writeFile (path, data, options, cb) {
      return fs$writeFile(path, data, options, function (err) {
        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
          enqueue([go$writeFile, [path, data, options, cb]])
        else {
          if (typeof cb === 'function')
            cb.apply(this, arguments)
          retry()
        }
      })
    }
  }

  var fs$appendFile = fs.appendFile
  if (fs$appendFile)
    fs.appendFile = appendFile
  function appendFile (path, data, options, cb) {
    if (typeof options === 'function')
      cb = options, options = null

    return go$appendFile(path, data, options, cb)

    function go$appendFile (path, data, options, cb) {
      return fs$appendFile(path, data, options, function (err) {
        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
          enqueue([go$appendFile, [path, data, options, cb]])
        else {
          if (typeof cb === 'function')
            cb.apply(this, arguments)
          retry()
        }
      })
    }
  }

  var fs$readdir = fs.readdir
  fs.readdir = readdir
  function readdir (path, options, cb) {
    var args = [path]
    if (typeof options !== 'function') {
      args.push(options)
    } else {
      cb = options
    }
    args.push(go$readdir$cb)

    return go$readdir(args)

    function go$readdir$cb (err, files) {
      if (files && files.sort)
        files.sort()

      if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
        enqueue([go$readdir, [args]])
      else {
        if (typeof cb === 'function')
          cb.apply(this, arguments)
        retry()
      }
    }
  }

  function go$readdir (args) {
    return fs$readdir.apply(fs, args)
  }

  if (process.version.substr(0, 4) === 'v0.8') {
    var legStreams = legacy(fs)
    ReadStream = legStreams.ReadStream
    WriteStream = legStreams.WriteStream
  }

  var fs$ReadStream = fs.ReadStream
  ReadStream.prototype = Object.create(fs$ReadStream.prototype)
  ReadStream.prototype.open = ReadStream$open

  var fs$WriteStream = fs.WriteStream
  WriteStream.prototype = Object.create(fs$WriteStream.prototype)
  WriteStream.prototype.open = WriteStream$open

  fs.ReadStream = ReadStream
  fs.WriteStream = WriteStream

  function ReadStream (path, options) {
    if (this instanceof ReadStream)
      return fs$ReadStream.apply(this, arguments), this
    else
      return ReadStream.apply(Object.create(ReadStream.prototype), arguments)
  }

  function ReadStream$open () {
    var that = this
    open(that.path, that.flags, that.mode, function (err, fd) {
      if (err) {
        if (that.autoClose)
          that.destroy()

        that.emit('error', err)
      } else {
        that.fd = fd
        that.emit('open', fd)
        that.read()
      }
    })
  }

  function WriteStream (path, options) {
    if (this instanceof WriteStream)
      return fs$WriteStream.apply(this, arguments), this
    else
      return WriteStream.apply(Object.create(WriteStream.prototype), arguments)
  }

  function WriteStream$open () {
    var that = this
    open(that.path, that.flags, that.mode, function (err, fd) {
      if (err) {
        that.destroy()
        that.emit('error', err)
      } else {
        that.fd = fd
        that.emit('open', fd)
      }
    })
  }

  function createReadStream (path, options) {
    return new ReadStream(path, options)
  }

  function createWriteStream (path, options) {
    return new WriteStream(path, options)
  }

  var fs$open = fs.open
  fs.open = open
  function open (path, flags, mode, cb) {
    if (typeof mode === 'function')
      cb = mode, mode = null

    return go$open(path, flags, mode, cb)

    function go$open (path, flags, mode, cb) {
      return fs$open(path, flags, mode, function (err, fd) {
        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
          enqueue([go$open, [path, flags, mode, cb]])
        else {
          if (typeof cb === 'function')
            cb.apply(this, arguments)
          retry()
        }
      })
    }
  }

  return fs
}

function enqueue (elem) {
  debug('ENQUEUE', elem[0].name, elem[1])
  queue.push(elem)
}

function retry () {
  var elem = queue.shift()
  if (elem) {
    debug('RETRY', elem[0].name, elem[1])
    elem[0].apply(null, elem[1])
  }
}

}).call(this,require('_process'))
},{"./fs.js":228,"./legacy-streams.js":230,"./polyfills.js":231,"_process":255,"assert":5,"fs":39,"util":309}],230:[function(require,module,exports){
(function (process){
var Stream = require('stream').Stream

module.exports = legacy

function legacy (fs) {
  return {
    ReadStream: ReadStream,
    WriteStream: WriteStream
  }

  function ReadStream (path, options) {
    if (!(this instanceof ReadStream)) return new ReadStream(path, options);

    Stream.call(this);

    var self = this;

    this.path = path;
    this.fd = null;
    this.readable = true;
    this.paused = false;

    this.flags = 'r';
    this.mode = 438; /*=0666*/
    this.bufferSize = 64 * 1024;

    options = options || {};

    // Mixin options into this
    var keys = Object.keys(options);
    for (var index = 0, length = keys.length; index < length; index++) {
      var key = keys[index];
      this[key] = options[key];
    }

    if (this.encoding) this.setEncoding(this.encoding);

    if (this.start !== undefined) {
      if ('number' !== typeof this.start) {
        throw TypeError('start must be a Number');
      }
      if (this.end === undefined) {
        this.end = Infinity;
      } else if ('number' !== typeof this.end) {
        throw TypeError('end must be a Number');
      }

      if (this.start > this.end) {
        throw new Error('start must be <= end');
      }

      this.pos = this.start;
    }

    if (this.fd !== null) {
      process.nextTick(function() {
        self._read();
      });
      return;
    }

    fs.open(this.path, this.flags, this.mode, function (err, fd) {
      if (err) {
        self.emit('error', err);
        self.readable = false;
        return;
      }

      self.fd = fd;
      self.emit('open', fd);
      self._read();
    })
  }

  function WriteStream (path, options) {
    if (!(this instanceof WriteStream)) return new WriteStream(path, options);

    Stream.call(this);

    this.path = path;
    this.fd = null;
    this.writable = true;

    this.flags = 'w';
    this.encoding = 'binary';
    this.mode = 438; /*=0666*/
    this.bytesWritten = 0;

    options = options || {};

    // Mixin options into this
    var keys = Object.keys(options);
    for (var index = 0, length = keys.length; index < length; index++) {
      var key = keys[index];
      this[key] = options[key];
    }

    if (this.start !== undefined) {
      if ('number' !== typeof this.start) {
        throw TypeError('start must be a Number');
      }
      if (this.start < 0) {
        throw new Error('start must be >= zero');
      }

      this.pos = this.start;
    }

    this.busy = false;
    this._queue = [];

    if (this.fd === null) {
      this._open = fs.open;
      this._queue.push([this._open, this.path, this.flags, this.mode, undefined]);
      this.flush();
    }
  }
}

}).call(this,require('_process'))
},{"_process":255,"stream":298}],231:[function(require,module,exports){
(function (process){
var fs = require('./fs.js')
var constants = require('constants')

var origCwd = process.cwd
var cwd = null

var platform = process.env.GRACEFUL_FS_PLATFORM || process.platform

process.cwd = function() {
  if (!cwd)
    cwd = origCwd.call(process)
  return cwd
}
try {
  process.cwd()
} catch (er) {}

var chdir = process.chdir
process.chdir = function(d) {
  cwd = null
  chdir.call(process, d)
}

module.exports = patch

function patch (fs) {
  // (re-)implement some things that are known busted or missing.

  // lchmod, broken prior to 0.6.2
  // back-port the fix here.
  if (constants.hasOwnProperty('O_SYMLINK') &&
      process.version.match(/^v0\.6\.[0-2]|^v0\.5\./)) {
    patchLchmod(fs)
  }

  // lutimes implementation, or no-op
  if (!fs.lutimes) {
    patchLutimes(fs)
  }

  // https://github.com/isaacs/node-graceful-fs/issues/4
  // Chown should not fail on einval or eperm if non-root.
  // It should not fail on enosys ever, as this just indicates
  // that a fs doesn't support the intended operation.

  fs.chown = chownFix(fs.chown)
  fs.fchown = chownFix(fs.fchown)
  fs.lchown = chownFix(fs.lchown)

  fs.chmod = chmodFix(fs.chmod)
  fs.fchmod = chmodFix(fs.fchmod)
  fs.lchmod = chmodFix(fs.lchmod)

  fs.chownSync = chownFixSync(fs.chownSync)
  fs.fchownSync = chownFixSync(fs.fchownSync)
  fs.lchownSync = chownFixSync(fs.lchownSync)

  fs.chmodSync = chmodFixSync(fs.chmodSync)
  fs.fchmodSync = chmodFixSync(fs.fchmodSync)
  fs.lchmodSync = chmodFixSync(fs.lchmodSync)

  fs.stat = statFix(fs.stat)
  fs.fstat = statFix(fs.fstat)
  fs.lstat = statFix(fs.lstat)

  fs.statSync = statFixSync(fs.statSync)
  fs.fstatSync = statFixSync(fs.fstatSync)
  fs.lstatSync = statFixSync(fs.lstatSync)

  // if lchmod/lchown do not exist, then make them no-ops
  if (!fs.lchmod) {
    fs.lchmod = function (path, mode, cb) {
      if (cb) process.nextTick(cb)
    }
    fs.lchmodSync = function () {}
  }
  if (!fs.lchown) {
    fs.lchown = function (path, uid, gid, cb) {
      if (cb) process.nextTick(cb)
    }
    fs.lchownSync = function () {}
  }

  // on Windows, A/V software can lock the directory, causing this
  // to fail with an EACCES or EPERM if the directory contains newly
  // created files.  Try again on failure, for up to 60 seconds.

  // Set the timeout this long because some Windows Anti-Virus, such as Parity
  // bit9, may lock files for up to a minute, causing npm package install
  // failures. Also, take care to yield the scheduler. Windows scheduling gives
  // CPU to a busy looping process, which can cause the program causing the lock
  // contention to be starved of CPU by node, so the contention doesn't resolve.
  if (platform === "win32") {
    fs.rename = (function (fs$rename) { return function (from, to, cb) {
      var start = Date.now()
      var backoff = 0;
      fs$rename(from, to, function CB (er) {
        if (er
            && (er.code === "EACCES" || er.code === "EPERM")
            && Date.now() - start < 60000) {
          setTimeout(function() {
            fs.stat(to, function (stater, st) {
              if (stater && stater.code === "ENOENT")
                fs$rename(from, to, CB);
              else
                cb(er)
            })
          }, backoff)
          if (backoff < 100)
            backoff += 10;
          return;
        }
        if (cb) cb(er)
      })
    }})(fs.rename)
  }

  // if read() returns EAGAIN, then just try it again.
  fs.read = (function (fs$read) { return function (fd, buffer, offset, length, position, callback_) {
    var callback
    if (callback_ && typeof callback_ === 'function') {
      var eagCounter = 0
      callback = function (er, _, __) {
        if (er && er.code === 'EAGAIN' && eagCounter < 10) {
          eagCounter ++
          return fs$read.call(fs, fd, buffer, offset, length, position, callback)
        }
        callback_.apply(this, arguments)
      }
    }
    return fs$read.call(fs, fd, buffer, offset, length, position, callback)
  }})(fs.read)

  fs.readSync = (function (fs$readSync) { return function (fd, buffer, offset, length, position) {
    var eagCounter = 0
    while (true) {
      try {
        return fs$readSync.call(fs, fd, buffer, offset, length, position)
      } catch (er) {
        if (er.code === 'EAGAIN' && eagCounter < 10) {
          eagCounter ++
          continue
        }
        throw er
      }
    }
  }})(fs.readSync)
}

function patchLchmod (fs) {
  fs.lchmod = function (path, mode, callback) {
    fs.open( path
           , constants.O_WRONLY | constants.O_SYMLINK
           , mode
           , function (err, fd) {
      if (err) {
        if (callback) callback(err)
        return
      }
      // prefer to return the chmod error, if one occurs,
      // but still try to close, and report closing errors if they occur.
      fs.fchmod(fd, mode, function (err) {
        fs.close(fd, function(err2) {
          if (callback) callback(err || err2)
        })
      })
    })
  }

  fs.lchmodSync = function (path, mode) {
    var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK, mode)

    // prefer to return the chmod error, if one occurs,
    // but still try to close, and report closing errors if they occur.
    var threw = true
    var ret
    try {
      ret = fs.fchmodSync(fd, mode)
      threw = false
    } finally {
      if (threw) {
        try {
          fs.closeSync(fd)
        } catch (er) {}
      } else {
        fs.closeSync(fd)
      }
    }
    return ret
  }
}

function patchLutimes (fs) {
  if (constants.hasOwnProperty("O_SYMLINK")) {
    fs.lutimes = function (path, at, mt, cb) {
      fs.open(path, constants.O_SYMLINK, function (er, fd) {
        if (er) {
          if (cb) cb(er)
          return
        }
        fs.futimes(fd, at, mt, function (er) {
          fs.close(fd, function (er2) {
            if (cb) cb(er || er2)
          })
        })
      })
    }

    fs.lutimesSync = function (path, at, mt) {
      var fd = fs.openSync(path, constants.O_SYMLINK)
      var ret
      var threw = true
      try {
        ret = fs.futimesSync(fd, at, mt)
        threw = false
      } finally {
        if (threw) {
          try {
            fs.closeSync(fd)
          } catch (er) {}
        } else {
          fs.closeSync(fd)
        }
      }
      return ret
    }

  } else {
    fs.lutimes = function (_a, _b, _c, cb) { if (cb) process.nextTick(cb) }
    fs.lutimesSync = function () {}
  }
}

function chmodFix (orig) {
  if (!orig) return orig
  return function (target, mode, cb) {
    return orig.call(fs, target, mode, function (er) {
      if (chownErOk(er)) er = null
      if (cb) cb.apply(this, arguments)
    })
  }
}

function chmodFixSync (orig) {
  if (!orig) return orig
  return function (target, mode) {
    try {
      return orig.call(fs, target, mode)
    } catch (er) {
      if (!chownErOk(er)) throw er
    }
  }
}


function chownFix (orig) {
  if (!orig) return orig
  return function (target, uid, gid, cb) {
    return orig.call(fs, target, uid, gid, function (er) {
      if (chownErOk(er)) er = null
      if (cb) cb.apply(this, arguments)
    })
  }
}

function chownFixSync (orig) {
  if (!orig) return orig
  return function (target, uid, gid) {
    try {
      return orig.call(fs, target, uid, gid)
    } catch (er) {
      if (!chownErOk(er)) throw er
    }
  }
}


function statFix (orig) {
  if (!orig) return orig
  // Older versions of Node erroneously returned signed integers for
  // uid + gid.
  return function (target, cb) {
    return orig.call(fs, target, function (er, stats) {
      if (!stats) return cb.apply(this, arguments)
      if (stats.uid < 0) stats.uid += 0x100000000
      if (stats.gid < 0) stats.gid += 0x100000000
      if (cb) cb.apply(this, arguments)
    })
  }
}

function statFixSync (orig) {
  if (!orig) return orig
  // Older versions of Node erroneously returned signed integers for
  // uid + gid.
  return function (target) {
    var stats = orig.call(fs, target)
    if (stats.uid < 0) stats.uid += 0x100000000
    if (stats.gid < 0) stats.gid += 0x100000000
    return stats;
  }
}

// ENOSYS means that the fs doesn't support the op. Just ignore
// that, because it doesn't matter.
//
// if there's no getuid, or if getuid() is something other
// than 0, and the error is EINVAL or EPERM, then just ignore
// it.
//
// This specific case is a silent failure in cp, install, tar,
// and most other unix tools that manage permissions.
//
// When running as root, or if other types of errors are
// encountered, then it's strict.
function chownErOk (er) {
  if (!er)
    return true

  if (er.code === "ENOSYS")
    return true

  var nonroot = !process.getuid || process.getuid() !== 0
  if (nonroot) {
    if (er.code === "EINVAL" || er.code === "EPERM")
      return true
  }

  return false
}

}).call(this,require('_process'))
},{"./fs.js":228,"_process":255,"constants":65}],232:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = (value * c - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],233:[function(require,module,exports){
'use strict';
module.exports = (str, count, opts) => {
	// Support older versions: use the third parameter as options.indent
	// TODO: Remove the workaround in the next major version
	const options = typeof opts === 'object' ? Object.assign({indent: ' '}, opts) : {indent: opts || ' '};
	count = count === undefined ? 1 : count;

	if (typeof str !== 'string') {
		throw new TypeError(`Expected \`input\` to be a \`string\`, got \`${typeof str}\``);
	}

	if (typeof count !== 'number') {
		throw new TypeError(`Expected \`count\` to be a \`number\`, got \`${typeof count}\``);
	}

	if (typeof options.indent !== 'string') {
		throw new TypeError(`Expected \`options.indent\` to be a \`string\`, got \`${typeof options.indent}\``);
	}

	if (count === 0) {
		return str;
	}

	const regex = options.includeEmptyLines ? /^/mg : /^(?!\s*$)/mg;
	return str.replace(regex, options.indent.repeat(count));
}
;

},{}],234:[function(require,module,exports){
(function (process){
var wrappy = require('wrappy')
var reqs = Object.create(null)
var once = require('once')

module.exports = wrappy(inflight)

function inflight (key, cb) {
  if (reqs[key]) {
    reqs[key].push(cb)
    return null
  } else {
    reqs[key] = [cb]
    return makeres(key)
  }
}

function makeres (key) {
  return once(function RES () {
    var cbs = reqs[key]
    var len = cbs.length
    var args = slice(arguments)

    // XXX It's somewhat ambiguous whether a new callback added in this
    // pass should be queued for later execution if something in the
    // list of callbacks throws, or if it should just be discarded.
    // However, it's such an edge case that it hardly matters, and either
    // choice is likely as surprising as the other.
    // As it happens, we do go ahead and schedule it for later execution.
    try {
      for (var i = 0; i < len; i++) {
        cbs[i].apply(null, args)
      }
    } finally {
      if (cbs.length > len) {
        // added more in the interim.
        // de-zalgo, just in case, but don't call again.
        cbs.splice(0, len)
        process.nextTick(function () {
          RES.apply(null, args)
        })
      } else {
        delete reqs[key]
      }
    }
  })
}

function slice (args) {
  var length = args.length
  var array = []

  for (var i = 0; i < length; i++) array[i] = args[i]
  return array
}

}).call(this,require('_process'))
},{"_process":255,"once":249,"wrappy":311}],235:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],236:[function(require,module,exports){
/*!
 * Determine if an object is a Buffer
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */

// The _isBuffer check is for Safari 5-7 support, because it's missing
// Object.prototype.constructor. Remove this eventually
module.exports = function (obj) {
  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
}

function isBuffer (obj) {
  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
}

// For Node v0.10 support. Remove this eventually.
function isSlowBuffer (obj) {
  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
}

},{}],237:[function(require,module,exports){
/**
 * Export generator function checks.
 */
module.exports = isGenerator
module.exports.fn = isGeneratorFunction

/**
 * Check whether an object is a generator.
 *
 * @param  {Object}  obj
 * @return {Boolean}
 */
function isGenerator (obj) {
  return obj &&
    typeof obj.next === 'function' &&
    typeof obj.throw === 'function'
}

/**
 * Check whether a function is generator.
 *
 * @param  {Function} fn
 * @return {Boolean}
 */
function isGeneratorFunction (fn) {
  return typeof fn === 'function' &&
    fn.constructor &&
    fn.constructor.name === 'GeneratorFunction'
}

},{}],238:[function(require,module,exports){
'use strict';

var isStream = module.exports = function (stream) {
	return stream !== null && typeof stream === 'object' && typeof stream.pipe === 'function';
};

isStream.writable = function (stream) {
	return isStream(stream) && stream.writable !== false && typeof stream._write === 'function' && typeof stream._writableState === 'object';
};

isStream.readable = function (stream) {
	return isStream(stream) && stream.readable !== false && typeof stream._read === 'function' && typeof stream._readableState === 'object';
};

isStream.duplex = function (stream) {
	return isStream.writable(stream) && isStream.readable(stream);
};

isStream.transform = function (stream) {
	return isStream.duplex(stream) && typeof stream._transform === 'function' && typeof stream._transformState === 'object';
};

},{}],239:[function(require,module,exports){
var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};

},{}],240:[function(require,module,exports){
/*
 * Copyright 2013 AJ O'Neal
 * Copyright 2015 Tiancheng "Timothy" Gu
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict'

/**
 * @file
 *
 * Implementation of the Fisher-Yates shuffle algorithm in JavaScript, with
 * the possibility of using a seed to ensure reproducibility.
 *
 * @module knuth-shuffle-seeded
 */

var randGen = require('seed-random')

/**
 * Shuffle an array using the Fisher-Yates shuffle algorithm, aka Knuth
 * shuffle.
 *
 * Note that this function overwrites the initial array. As a result if you
 * would like to keep the original array intact, you have to copy the initial
 * array to a new array.
 *
 * Implementation derived from http://stackoverflow.com/questions/2450954/.
 *
 * @param {Array} array An array that is to be shuffled.
 * @param [seed=Math.random()] Seed for the shuffling operation. If
 *                             unspecified then a random value is used.
 * @return {Array} The resulting array.
 */
module.exports = function shuffle(array, seed) {
  var currentIndex
    , temporaryValue
    , randomIndex
    , rand
  if (seed == null) rand = randGen()
  else              rand = randGen(seed)

  if (array.constructor !== Array) throw new Error('Input is not an array')
  currentIndex = array.length

  // While there remain elements to shuffle...
  while (0 !== currentIndex) {
    // Pick a remaining element...
    randomIndex = Math.floor(rand() * (currentIndex --))

    // And swap it with the current element.
    temporaryValue = array[currentIndex]
    array[currentIndex] = array[randomIndex]
    array[randomIndex] = temporaryValue
  }

  return array
}

},{"seed-random":282}],241:[function(require,module,exports){
(function (global){
/**
 * @license
 * Lodash <https://lodash.com/>
 * Copyright JS Foundation and other contributors <https://js.foundation/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */
;(function() {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /** Used as the semantic version number. */
  var VERSION = '4.17.4';

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /** Error message constants. */
  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
      FUNC_ERROR_TEXT = 'Expected a function';

  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /** Used as the maximum memoize cache size. */
  var MAX_MEMOIZE_SIZE = 500;

  /** Used as the internal argument placeholder. */
  var PLACEHOLDER = '__lodash_placeholder__';

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1,
      CLONE_FLAT_FLAG = 2,
      CLONE_SYMBOLS_FLAG = 4;

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /** Used to compose bitmasks for function metadata. */
  var WRAP_BIND_FLAG = 1,
      WRAP_BIND_KEY_FLAG = 2,
      WRAP_CURRY_BOUND_FLAG = 4,
      WRAP_CURRY_FLAG = 8,
      WRAP_CURRY_RIGHT_FLAG = 16,
      WRAP_PARTIAL_FLAG = 32,
      WRAP_PARTIAL_RIGHT_FLAG = 64,
      WRAP_ARY_FLAG = 128,
      WRAP_REARG_FLAG = 256,
      WRAP_FLIP_FLAG = 512;

  /** Used as default options for `_.truncate`. */
  var DEFAULT_TRUNC_LENGTH = 30,
      DEFAULT_TRUNC_OMISSION = '...';

  /** Used to detect hot functions by number of calls within a span of milliseconds. */
  var HOT_COUNT = 800,
      HOT_SPAN = 16;

  /** Used to indicate the type of lazy iteratees. */
  var LAZY_FILTER_FLAG = 1,
      LAZY_MAP_FLAG = 2,
      LAZY_WHILE_FLAG = 3;

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0,
      MAX_SAFE_INTEGER = 9007199254740991,
      MAX_INTEGER = 1.7976931348623157e+308,
      NAN = 0 / 0;

  /** Used as references for the maximum length and index of an array. */
  var MAX_ARRAY_LENGTH = 4294967295,
      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;

  /** Used to associate wrap methods with their bit flags. */
  var wrapFlags = [
    ['ary', WRAP_ARY_FLAG],
    ['bind', WRAP_BIND_FLAG],
    ['bindKey', WRAP_BIND_KEY_FLAG],
    ['curry', WRAP_CURRY_FLAG],
    ['curryRight', WRAP_CURRY_RIGHT_FLAG],
    ['flip', WRAP_FLIP_FLAG],
    ['partial', WRAP_PARTIAL_FLAG],
    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
    ['rearg', WRAP_REARG_FLAG]
  ];

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      asyncTag = '[object AsyncFunction]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      domExcTag = '[object DOMException]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      genTag = '[object GeneratorFunction]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      nullTag = '[object Null]',
      objectTag = '[object Object]',
      promiseTag = '[object Promise]',
      proxyTag = '[object Proxy]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]',
      undefinedTag = '[object Undefined]',
      weakMapTag = '[object WeakMap]',
      weakSetTag = '[object WeakSet]';

  var arrayBufferTag = '[object ArrayBuffer]',
      dataViewTag = '[object DataView]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to match empty string literals in compiled template source. */
  var reEmptyStringLeading = /\b__p \+= '';/g,
      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

  /** Used to match HTML entities and HTML characters. */
  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
      reUnescapedHtml = /[&<>"']/g,
      reHasEscapedHtml = RegExp(reEscapedHtml.source),
      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);

  /** Used to match template delimiters. */
  var reEscape = /<%-([\s\S]+?)%>/g,
      reEvaluate = /<%([\s\S]+?)%>/g,
      reInterpolate = /<%=([\s\S]+?)%>/g;

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/,
      reLeadingDot = /^\./,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;

  /**
   * Used to match `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
      reHasRegExpChar = RegExp(reRegExpChar.source);

  /** Used to match leading and trailing whitespace. */
  var reTrim = /^\s+|\s+$/g,
      reTrimStart = /^\s+/,
      reTrimEnd = /\s+$/;

  /** Used to match wrap detail comments. */
  var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
      reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
      reSplitDetails = /,? & /;

  /** Used to match words composed of alphanumeric characters. */
  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /**
   * Used to match
   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
   */
  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /** Used to detect bad signed hexadecimal string values. */
  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

  /** Used to detect binary string values. */
  var reIsBinary = /^0b[01]+$/i;

  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Used to detect octal string values. */
  var reIsOctal = /^0o[0-7]+$/i;

  /** Used to detect unsigned integer values. */
  var reIsUint = /^(?:0|[1-9]\d*)$/;

  /** Used to match Latin Unicode letters (excluding mathematical operators). */
  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;

  /** Used to ensure capturing order of template delimiters. */
  var reNoMatch = /($^)/;

  /** Used to match unescaped characters in compiled string literals. */
  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

  /** Used to compose unicode character classes. */
  var rsAstralRange = '\\ud800-\\udfff',
      rsComboMarksRange = '\\u0300-\\u036f',
      reComboHalfMarksRange = '\\ufe20-\\ufe2f',
      rsComboSymbolsRange = '\\u20d0-\\u20ff',
      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
      rsDingbatRange = '\\u2700-\\u27bf',
      rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
      rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
      rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
      rsPunctuationRange = '\\u2000-\\u206f',
      rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
      rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
      rsVarRange = '\\ufe0e\\ufe0f',
      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;

  /** Used to compose unicode capture groups. */
  var rsApos = "['\u2019]",
      rsAstral = '[' + rsAstralRange + ']',
      rsBreak = '[' + rsBreakRange + ']',
      rsCombo = '[' + rsComboRange + ']',
      rsDigits = '\\d+',
      rsDingbat = '[' + rsDingbatRange + ']',
      rsLower = '[' + rsLowerRange + ']',
      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
      rsFitz = '\\ud83c[\\udffb-\\udfff]',
      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
      rsNonAstral = '[^' + rsAstralRange + ']',
      rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
      rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
      rsUpper = '[' + rsUpperRange + ']',
      rsZWJ = '\\u200d';

  /** Used to compose unicode regexes. */
  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
      reOptMod = rsModifier + '?',
      rsOptVar = '[' + rsVarRange + ']?',
      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
      rsOrdLower = '\\d*(?:(?:1st|2nd|3rd|(?![123])\\dth)\\b)',
      rsOrdUpper = '\\d*(?:(?:1ST|2ND|3RD|(?![123])\\dTH)\\b)',
      rsSeq = rsOptVar + reOptMod + rsOptJoin,
      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';

  /** Used to match apostrophes. */
  var reApos = RegExp(rsApos, 'g');

  /**
   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
   */
  var reComboMark = RegExp(rsCombo, 'g');

  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');

  /** Used to match complex or compound words. */
  var reUnicodeWord = RegExp([
    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
    rsUpper + '+' + rsOptContrUpper,
    rsOrdUpper,
    rsOrdLower,
    rsDigits,
    rsEmoji
  ].join('|'), 'g');

  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');

  /** Used to detect strings that need a more robust regexp to match words. */
  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;

  /** Used to assign default `context` object properties. */
  var contextProps = [
    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
  ];

  /** Used to make template sourceURLs easier to identify. */
  var templateCounter = -1;

  /** Used to identify `toStringTag` values of typed arrays. */
  var typedArrayTags = {};
  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
  typedArrayTags[uint32Tag] = true;
  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
  typedArrayTags[errorTag] = typedArrayTags[funcTag] =
  typedArrayTags[mapTag] = typedArrayTags[numberTag] =
  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
  typedArrayTags[setTag] = typedArrayTags[stringTag] =
  typedArrayTags[weakMapTag] = false;

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] =
  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
  cloneableTags[boolTag] = cloneableTags[dateTag] =
  cloneableTags[float32Tag] = cloneableTags[float64Tag] =
  cloneableTags[int8Tag] = cloneableTags[int16Tag] =
  cloneableTags[int32Tag] = cloneableTags[mapTag] =
  cloneableTags[numberTag] = cloneableTags[objectTag] =
  cloneableTags[regexpTag] = cloneableTags[setTag] =
  cloneableTags[stringTag] = cloneableTags[symbolTag] =
  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] =
  cloneableTags[weakMapTag] = false;

  /** Used to map Latin Unicode letters to basic Latin letters. */
  var deburredLetters = {
    // Latin-1 Supplement block.
    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
    '\xc7': 'C',  '\xe7': 'c',
    '\xd0': 'D',  '\xf0': 'd',
    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
    '\xd1': 'N',  '\xf1': 'n',
    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
    '\xc6': 'Ae', '\xe6': 'ae',
    '\xde': 'Th', '\xfe': 'th',
    '\xdf': 'ss',
    // Latin Extended-A block.
    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
    '\u0134': 'J',  '\u0135': 'j',
    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
    '\u0174': 'W',  '\u0175': 'w',
    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
    '\u0132': 'IJ', '\u0133': 'ij',
    '\u0152': 'Oe', '\u0153': 'oe',
    '\u0149': "'n", '\u017f': 's'
  };

  /** Used to map characters to HTML entities. */
  var htmlEscapes = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;'
  };

  /** Used to map HTML entities to characters. */
  var htmlUnescapes = {
    '&amp;': '&',
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&#39;': "'"
  };

  /** Used to escape characters for inclusion in compiled string literals. */
  var stringEscapes = {
    '\\': '\\',
    "'": "'",
    '\n': 'n',
    '\r': 'r',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  /** Built-in method references without a dependency on `root`. */
  var freeParseFloat = parseFloat,
      freeParseInt = parseInt;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;

  /** Detect free variable `self`. */
  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

  /** Used as a reference to the global object. */
  var root = freeGlobal || freeSelf || Function('return this')();

  /** Detect free variable `exports`. */
  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;

  /** Detect free variable `process` from Node.js. */
  var freeProcess = moduleExports && freeGlobal.process;

  /** Used to access faster Node.js helpers. */
  var nodeUtil = (function() {
    try {
      return freeProcess && freeProcess.binding && freeProcess.binding('util');
    } catch (e) {}
  }());

  /* Node.js helper references. */
  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
      nodeIsDate = nodeUtil && nodeUtil.isDate,
      nodeIsMap = nodeUtil && nodeUtil.isMap,
      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
      nodeIsSet = nodeUtil && nodeUtil.isSet,
      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;

  /*--------------------------------------------------------------------------*/

  /**
   * Adds the key-value `pair` to `map`.
   *
   * @private
   * @param {Object} map The map to modify.
   * @param {Array} pair The key-value pair to add.
   * @returns {Object} Returns `map`.
   */
  function addMapEntry(map, pair) {
    // Don't return `map.set` because it's not chainable in IE 11.
    map.set(pair[0], pair[1]);
    return map;
  }

  /**
   * Adds `value` to `set`.
   *
   * @private
   * @param {Object} set The set to modify.
   * @param {*} value The value to add.
   * @returns {Object} Returns `set`.
   */
  function addSetEntry(set, value) {
    // Don't return `set.add` because it's not chainable in IE 11.
    set.add(value);
    return set;
  }

  /**
   * A faster alternative to `Function#apply`, this function invokes `func`
   * with the `this` binding of `thisArg` and the arguments of `args`.
   *
   * @private
   * @param {Function} func The function to invoke.
   * @param {*} thisArg The `this` binding of `func`.
   * @param {Array} args The arguments to invoke `func` with.
   * @returns {*} Returns the result of `func`.
   */
  function apply(func, thisArg, args) {
    switch (args.length) {
      case 0: return func.call(thisArg);
      case 1: return func.call(thisArg, args[0]);
      case 2: return func.call(thisArg, args[0], args[1]);
      case 3: return func.call(thisArg, args[0], args[1], args[2]);
    }
    return func.apply(thisArg, args);
  }

  /**
   * A specialized version of `baseAggregator` for arrays.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} setter The function to set `accumulator` values.
   * @param {Function} iteratee The iteratee to transform keys.
   * @param {Object} accumulator The initial aggregated object.
   * @returns {Function} Returns `accumulator`.
   */
  function arrayAggregator(array, setter, iteratee, accumulator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      var value = array[index];
      setter(accumulator, value, iteratee(value), array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.forEach` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEach(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (iteratee(array[index], index, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.forEachRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEachRight(array, iteratee) {
    var length = array == null ? 0 : array.length;

    while (length--) {
      if (iteratee(array[length], length, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.every` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if all elements pass the predicate check,
   *  else `false`.
   */
  function arrayEvery(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (!predicate(array[index], index, array)) {
        return false;
      }
    }
    return true;
  }

  /**
   * A specialized version of `_.filter` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {Array} Returns the new filtered array.
   */
  function arrayFilter(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (predicate(value, index, array)) {
        result[resIndex++] = value;
      }
    }
    return result;
  }

  /**
   * A specialized version of `_.includes` for arrays without support for
   * specifying an index to search from.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludes(array, value) {
    var length = array == null ? 0 : array.length;
    return !!length && baseIndexOf(array, value, 0) > -1;
  }

  /**
   * This function is like `arrayIncludes` except that it accepts a comparator.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludesWith(array, value, comparator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (comparator(value, array[index])) {
        return true;
      }
    }
    return false;
  }

  /**
   * A specialized version of `_.map` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the new mapped array.
   */
  function arrayMap(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length,
        result = Array(length);

    while (++index < length) {
      result[index] = iteratee(array[index], index, array);
    }
    return result;
  }

  /**
   * Appends the elements of `values` to `array`.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {Array} values The values to append.
   * @returns {Array} Returns `array`.
   */
  function arrayPush(array, values) {
    var index = -1,
        length = values.length,
        offset = array.length;

    while (++index < length) {
      array[offset + index] = values[index];
    }
    return array;
  }

  /**
   * A specialized version of `_.reduce` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the first element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduce(array, iteratee, accumulator, initAccum) {
    var index = -1,
        length = array == null ? 0 : array.length;

    if (initAccum && length) {
      accumulator = array[++index];
    }
    while (++index < length) {
      accumulator = iteratee(accumulator, array[index], index, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.reduceRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the last element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduceRight(array, iteratee, accumulator, initAccum) {
    var length = array == null ? 0 : array.length;
    if (initAccum && length) {
      accumulator = array[--length];
    }
    while (length--) {
      accumulator = iteratee(accumulator, array[length], length, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.some` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if any element passes the predicate check,
   *  else `false`.
   */
  function arraySome(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (predicate(array[index], index, array)) {
        return true;
      }
    }
    return false;
  }

  /**
   * Gets the size of an ASCII `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  var asciiSize = baseProperty('length');

  /**
   * Converts an ASCII `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function asciiToArray(string) {
    return string.split('');
  }

  /**
   * Splits an ASCII `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function asciiWords(string) {
    return string.match(reAsciiWord) || [];
  }

  /**
   * The base implementation of methods like `_.findKey` and `_.findLastKey`,
   * without support for iteratee shorthands, which iterates over `collection`
   * using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the found element or its key, else `undefined`.
   */
  function baseFindKey(collection, predicate, eachFunc) {
    var result;
    eachFunc(collection, function(value, key, collection) {
      if (predicate(value, key, collection)) {
        result = key;
        return false;
      }
    });
    return result;
  }

  /**
   * The base implementation of `_.findIndex` and `_.findLastIndex` without
   * support for iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {number} fromIndex The index to search from.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseFindIndex(array, predicate, fromIndex, fromRight) {
    var length = array.length,
        index = fromIndex + (fromRight ? 1 : -1);

    while ((fromRight ? index-- : ++index < length)) {
      if (predicate(array[index], index, array)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOf(array, value, fromIndex) {
    return value === value
      ? strictIndexOf(array, value, fromIndex)
      : baseFindIndex(array, baseIsNaN, fromIndex);
  }

  /**
   * This function is like `baseIndexOf` except that it accepts a comparator.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOfWith(array, value, fromIndex, comparator) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (comparator(array[index], value)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.isNaN` without support for number objects.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
   */
  function baseIsNaN(value) {
    return value !== value;
  }

  /**
   * The base implementation of `_.mean` and `_.meanBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the mean.
   */
  function baseMean(array, iteratee) {
    var length = array == null ? 0 : array.length;
    return length ? (baseSum(array, iteratee) / length) : NAN;
  }

  /**
   * The base implementation of `_.property` without support for deep paths.
   *
   * @private
   * @param {string} key The key of the property to get.
   * @returns {Function} Returns the new accessor function.
   */
  function baseProperty(key) {
    return function(object) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.propertyOf` without support for deep paths.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Function} Returns the new accessor function.
   */
  function basePropertyOf(object) {
    return function(key) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.reduce` and `_.reduceRight`, without support
   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} accumulator The initial value.
   * @param {boolean} initAccum Specify using the first or last element of
   *  `collection` as the initial value.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the accumulated value.
   */
  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
    eachFunc(collection, function(value, index, collection) {
      accumulator = initAccum
        ? (initAccum = false, value)
        : iteratee(accumulator, value, index, collection);
    });
    return accumulator;
  }

  /**
   * The base implementation of `_.sortBy` which uses `comparer` to define the
   * sort order of `array` and replaces criteria objects with their corresponding
   * values.
   *
   * @private
   * @param {Array} array The array to sort.
   * @param {Function} comparer The function to define sort order.
   * @returns {Array} Returns `array`.
   */
  function baseSortBy(array, comparer) {
    var length = array.length;

    array.sort(comparer);
    while (length--) {
      array[length] = array[length].value;
    }
    return array;
  }

  /**
   * The base implementation of `_.sum` and `_.sumBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the sum.
   */
  function baseSum(array, iteratee) {
    var result,
        index = -1,
        length = array.length;

    while (++index < length) {
      var current = iteratee(array[index]);
      if (current !== undefined) {
        result = result === undefined ? current : (result + current);
      }
    }
    return result;
  }

  /**
   * The base implementation of `_.times` without support for iteratee shorthands
   * or max array length checks.
   *
   * @private
   * @param {number} n The number of times to invoke `iteratee`.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the array of results.
   */
  function baseTimes(n, iteratee) {
    var index = -1,
        result = Array(n);

    while (++index < n) {
      result[index] = iteratee(index);
    }
    return result;
  }

  /**
   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
   * of key-value pairs for `object` corresponding to the property names of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the key-value pairs.
   */
  function baseToPairs(object, props) {
    return arrayMap(props, function(key) {
      return [key, object[key]];
    });
  }

  /**
   * The base implementation of `_.unary` without support for storing metadata.
   *
   * @private
   * @param {Function} func The function to cap arguments for.
   * @returns {Function} Returns the new capped function.
   */
  function baseUnary(func) {
    return function(value) {
      return func(value);
    };
  }

  /**
   * The base implementation of `_.values` and `_.valuesIn` which creates an
   * array of `object` property values corresponding to the property names
   * of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the array of property values.
   */
  function baseValues(object, props) {
    return arrayMap(props, function(key) {
      return object[key];
    });
  }

  /**
   * Checks if a `cache` value for `key` exists.
   *
   * @private
   * @param {Object} cache The cache to query.
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function cacheHas(cache, key) {
    return cache.has(key);
  }

  /**
   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the first unmatched string symbol.
   */
  function charsStartIndex(strSymbols, chrSymbols) {
    var index = -1,
        length = strSymbols.length;

    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the last unmatched string symbol.
   */
  function charsEndIndex(strSymbols, chrSymbols) {
    var index = strSymbols.length;

    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Gets the number of `placeholder` occurrences in `array`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} placeholder The placeholder to search for.
   * @returns {number} Returns the placeholder count.
   */
  function countHolders(array, placeholder) {
    var length = array.length,
        result = 0;

    while (length--) {
      if (array[length] === placeholder) {
        ++result;
      }
    }
    return result;
  }

  /**
   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
   * letters to basic Latin letters.
   *
   * @private
   * @param {string} letter The matched letter to deburr.
   * @returns {string} Returns the deburred letter.
   */
  var deburrLetter = basePropertyOf(deburredLetters);

  /**
   * Used by `_.escape` to convert characters to HTML entities.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  var escapeHtmlChar = basePropertyOf(htmlEscapes);

  /**
   * Used by `_.template` to escape characters for inclusion in compiled string literals.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeStringChar(chr) {
    return '\\' + stringEscapes[chr];
  }

  /**
   * Gets the value at `key` of `object`.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {string} key The key of the property to get.
   * @returns {*} Returns the property value.
   */
  function getValue(object, key) {
    return object == null ? undefined : object[key];
  }

  /**
   * Checks if `string` contains Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
   */
  function hasUnicode(string) {
    return reHasUnicode.test(string);
  }

  /**
   * Checks if `string` contains a word composed of Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a word is found, else `false`.
   */
  function hasUnicodeWord(string) {
    return reHasUnicodeWord.test(string);
  }

  /**
   * Converts `iterator` to an array.
   *
   * @private
   * @param {Object} iterator The iterator to convert.
   * @returns {Array} Returns the converted array.
   */
  function iteratorToArray(iterator) {
    var data,
        result = [];

    while (!(data = iterator.next()).done) {
      result.push(data.value);
    }
    return result;
  }

  /**
   * Converts `map` to its key-value pairs.
   *
   * @private
   * @param {Object} map The map to convert.
   * @returns {Array} Returns the key-value pairs.
   */
  function mapToArray(map) {
    var index = -1,
        result = Array(map.size);

    map.forEach(function(value, key) {
      result[++index] = [key, value];
    });
    return result;
  }

  /**
   * Creates a unary function that invokes `func` with its argument transformed.
   *
   * @private
   * @param {Function} func The function to wrap.
   * @param {Function} transform The argument transform.
   * @returns {Function} Returns the new function.
   */
  function overArg(func, transform) {
    return function(arg) {
      return func(transform(arg));
    };
  }

  /**
   * Replaces all `placeholder` elements in `array` with an internal placeholder
   * and returns an array of their indexes.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {*} placeholder The placeholder to replace.
   * @returns {Array} Returns the new array of placeholder indexes.
   */
  function replaceHolders(array, placeholder) {
    var index = -1,
        length = array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (value === placeholder || value === PLACEHOLDER) {
        array[index] = PLACEHOLDER;
        result[resIndex++] = index;
      }
    }
    return result;
  }

  /**
   * Converts `set` to an array of its values.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the values.
   */
  function setToArray(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = value;
    });
    return result;
  }

  /**
   * Converts `set` to its value-value pairs.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the value-value pairs.
   */
  function setToPairs(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = [value, value];
    });
    return result;
  }

  /**
   * A specialized version of `_.indexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictIndexOf(array, value, fromIndex) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  /**
   * A specialized version of `_.lastIndexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictLastIndexOf(array, value, fromIndex) {
    var index = fromIndex + 1;
    while (index--) {
      if (array[index] === value) {
        return index;
      }
    }
    return index;
  }

  /**
   * Gets the number of symbols in `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the string size.
   */
  function stringSize(string) {
    return hasUnicode(string)
      ? unicodeSize(string)
      : asciiSize(string);
  }

  /**
   * Converts `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function stringToArray(string) {
    return hasUnicode(string)
      ? unicodeToArray(string)
      : asciiToArray(string);
  }

  /**
   * Used by `_.unescape` to convert HTML entities to characters.
   *
   * @private
   * @param {string} chr The matched character to unescape.
   * @returns {string} Returns the unescaped character.
   */
  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);

  /**
   * Gets the size of a Unicode `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  function unicodeSize(string) {
    var result = reUnicode.lastIndex = 0;
    while (reUnicode.test(string)) {
      ++result;
    }
    return result;
  }

  /**
   * Converts a Unicode `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function unicodeToArray(string) {
    return string.match(reUnicode) || [];
  }

  /**
   * Splits a Unicode `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function unicodeWords(string) {
    return string.match(reUnicodeWord) || [];
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Create a new pristine `lodash` function using the `context` object.
   *
   * @static
   * @memberOf _
   * @since 1.1.0
   * @category Util
   * @param {Object} [context=root] The context object.
   * @returns {Function} Returns a new `lodash` function.
   * @example
   *
   * _.mixin({ 'foo': _.constant('foo') });
   *
   * var lodash = _.runInContext();
   * lodash.mixin({ 'bar': lodash.constant('bar') });
   *
   * _.isFunction(_.foo);
   * // => true
   * _.isFunction(_.bar);
   * // => false
   *
   * lodash.isFunction(lodash.foo);
   * // => false
   * lodash.isFunction(lodash.bar);
   * // => true
   *
   * // Create a suped-up `defer` in Node.js.
   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
   */
  var runInContext = (function runInContext(context) {
    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));

    /** Built-in constructor references. */
    var Array = context.Array,
        Date = context.Date,
        Error = context.Error,
        Function = context.Function,
        Math = context.Math,
        Object = context.Object,
        RegExp = context.RegExp,
        String = context.String,
        TypeError = context.TypeError;

    /** Used for built-in method references. */
    var arrayProto = Array.prototype,
        funcProto = Function.prototype,
        objectProto = Object.prototype;

    /** Used to detect overreaching core-js shims. */
    var coreJsData = context['__core-js_shared__'];

    /** Used to resolve the decompiled source of functions. */
    var funcToString = funcProto.toString;

    /** Used to check objects for own properties. */
    var hasOwnProperty = objectProto.hasOwnProperty;

    /** Used to generate unique IDs. */
    var idCounter = 0;

    /** Used to detect methods masquerading as native. */
    var maskSrcKey = (function() {
      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
      return uid ? ('Symbol(src)_1.' + uid) : '';
    }());

    /**
     * Used to resolve the
     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
     * of values.
     */
    var nativeObjectToString = objectProto.toString;

    /** Used to infer the `Object` constructor. */
    var objectCtorString = funcToString.call(Object);

    /** Used to restore the original `_` reference in `_.noConflict`. */
    var oldDash = root._;

    /** Used to detect if a method is native. */
    var reIsNative = RegExp('^' +
      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
    );

    /** Built-in value references. */
    var Buffer = moduleExports ? context.Buffer : undefined,
        Symbol = context.Symbol,
        Uint8Array = context.Uint8Array,
        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
        getPrototype = overArg(Object.getPrototypeOf, Object),
        objectCreate = Object.create,
        propertyIsEnumerable = objectProto.propertyIsEnumerable,
        splice = arrayProto.splice,
        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
        symIterator = Symbol ? Symbol.iterator : undefined,
        symToStringTag = Symbol ? Symbol.toStringTag : undefined;

    var defineProperty = (function() {
      try {
        var func = getNative(Object, 'defineProperty');
        func({}, '', {});
        return func;
      } catch (e) {}
    }());

    /** Mocked built-ins. */
    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
        ctxNow = Date && Date.now !== root.Date.now && Date.now,
        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;

    /* Built-in method references for those with the same name as other `lodash` methods. */
    var nativeCeil = Math.ceil,
        nativeFloor = Math.floor,
        nativeGetSymbols = Object.getOwnPropertySymbols,
        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
        nativeIsFinite = context.isFinite,
        nativeJoin = arrayProto.join,
        nativeKeys = overArg(Object.keys, Object),
        nativeMax = Math.max,
        nativeMin = Math.min,
        nativeNow = Date.now,
        nativeParseInt = context.parseInt,
        nativeRandom = Math.random,
        nativeReverse = arrayProto.reverse;

    /* Built-in method references that are verified to be native. */
    var DataView = getNative(context, 'DataView'),
        Map = getNative(context, 'Map'),
        Promise = getNative(context, 'Promise'),
        Set = getNative(context, 'Set'),
        WeakMap = getNative(context, 'WeakMap'),
        nativeCreate = getNative(Object, 'create');

    /** Used to store function metadata. */
    var metaMap = WeakMap && new WeakMap;

    /** Used to lookup unminified function names. */
    var realNames = {};

    /** Used to detect maps, sets, and weakmaps. */
    var dataViewCtorString = toSource(DataView),
        mapCtorString = toSource(Map),
        promiseCtorString = toSource(Promise),
        setCtorString = toSource(Set),
        weakMapCtorString = toSource(WeakMap);

    /** Used to convert symbols to primitives and strings. */
    var symbolProto = Symbol ? Symbol.prototype : undefined,
        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
        symbolToString = symbolProto ? symbolProto.toString : undefined;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object which wraps `value` to enable implicit method
     * chain sequences. Methods that operate on and return arrays, collections,
     * and functions can be chained together. Methods that retrieve a single value
     * or may return a primitive value will automatically end the chain sequence
     * and return the unwrapped value. Otherwise, the value must be unwrapped
     * with `_#value`.
     *
     * Explicit chain sequences, which must be unwrapped with `_#value`, may be
     * enabled using `_.chain`.
     *
     * The execution of chained methods is lazy, that is, it's deferred until
     * `_#value` is implicitly or explicitly called.
     *
     * Lazy evaluation allows several methods to support shortcut fusion.
     * Shortcut fusion is an optimization to merge iteratee calls; this avoids
     * the creation of intermediate arrays and can greatly reduce the number of
     * iteratee executions. Sections of a chain sequence qualify for shortcut
     * fusion if the section is applied to an array and iteratees accept only
     * one argument. The heuristic for whether a section qualifies for shortcut
     * fusion is subject to change.
     *
     * Chaining is supported in custom builds as long as the `_#value` method is
     * directly or indirectly included in the build.
     *
     * In addition to lodash methods, wrappers have `Array` and `String` methods.
     *
     * The wrapper `Array` methods are:
     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
     *
     * The wrapper `String` methods are:
     * `replace` and `split`
     *
     * The wrapper methods that support shortcut fusion are:
     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
     *
     * The chainable wrapper methods are:
     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
     * `zipObject`, `zipObjectDeep`, and `zipWith`
     *
     * The wrapper methods that are **not** chainable by default are:
     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
     * `upperFirst`, `value`, and `words`
     *
     * @name _
     * @constructor
     * @category Seq
     * @param {*} value The value to wrap in a `lodash` instance.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2, 3]);
     *
     * // Returns an unwrapped value.
     * wrapped.reduce(_.add);
     * // => 6
     *
     * // Returns a wrapped value.
     * var squares = wrapped.map(square);
     *
     * _.isArray(squares);
     * // => false
     *
     * _.isArray(squares.value());
     * // => true
     */
    function lodash(value) {
      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
        if (value instanceof LodashWrapper) {
          return value;
        }
        if (hasOwnProperty.call(value, '__wrapped__')) {
          return wrapperClone(value);
        }
      }
      return new LodashWrapper(value);
    }

    /**
     * The base implementation of `_.create` without support for assigning
     * properties to the created object.
     *
     * @private
     * @param {Object} proto The object to inherit from.
     * @returns {Object} Returns the new object.
     */
    var baseCreate = (function() {
      function object() {}
      return function(proto) {
        if (!isObject(proto)) {
          return {};
        }
        if (objectCreate) {
          return objectCreate(proto);
        }
        object.prototype = proto;
        var result = new object;
        object.prototype = undefined;
        return result;
      };
    }());

    /**
     * The function whose prototype chain sequence wrappers inherit from.
     *
     * @private
     */
    function baseLodash() {
      // No operation performed.
    }

    /**
     * The base constructor for creating `lodash` wrapper objects.
     *
     * @private
     * @param {*} value The value to wrap.
     * @param {boolean} [chainAll] Enable explicit method chain sequences.
     */
    function LodashWrapper(value, chainAll) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__chain__ = !!chainAll;
      this.__index__ = 0;
      this.__values__ = undefined;
    }

    /**
     * By default, the template delimiters used by lodash are like those in
     * embedded Ruby (ERB) as well as ES2015 template strings. Change the
     * following template settings to use alternative delimiters.
     *
     * @static
     * @memberOf _
     * @type {Object}
     */
    lodash.templateSettings = {

      /**
       * Used to detect `data` property values to be HTML-escaped.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'escape': reEscape,

      /**
       * Used to detect code to be evaluated.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'evaluate': reEvaluate,

      /**
       * Used to detect `data` property values to inject.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'interpolate': reInterpolate,

      /**
       * Used to reference the data object in the template text.
       *
       * @memberOf _.templateSettings
       * @type {string}
       */
      'variable': '',

      /**
       * Used to import variables into the compiled template.
       *
       * @memberOf _.templateSettings
       * @type {Object}
       */
      'imports': {

        /**
         * A reference to the `lodash` function.
         *
         * @memberOf _.templateSettings.imports
         * @type {Function}
         */
        '_': lodash
      }
    };

    // Ensure wrappers are instances of `baseLodash`.
    lodash.prototype = baseLodash.prototype;
    lodash.prototype.constructor = lodash;

    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
    LodashWrapper.prototype.constructor = LodashWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
     *
     * @private
     * @constructor
     * @param {*} value The value to wrap.
     */
    function LazyWrapper(value) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__dir__ = 1;
      this.__filtered__ = false;
      this.__iteratees__ = [];
      this.__takeCount__ = MAX_ARRAY_LENGTH;
      this.__views__ = [];
    }

    /**
     * Creates a clone of the lazy wrapper object.
     *
     * @private
     * @name clone
     * @memberOf LazyWrapper
     * @returns {Object} Returns the cloned `LazyWrapper` object.
     */
    function lazyClone() {
      var result = new LazyWrapper(this.__wrapped__);
      result.__actions__ = copyArray(this.__actions__);
      result.__dir__ = this.__dir__;
      result.__filtered__ = this.__filtered__;
      result.__iteratees__ = copyArray(this.__iteratees__);
      result.__takeCount__ = this.__takeCount__;
      result.__views__ = copyArray(this.__views__);
      return result;
    }

    /**
     * Reverses the direction of lazy iteration.
     *
     * @private
     * @name reverse
     * @memberOf LazyWrapper
     * @returns {Object} Returns the new reversed `LazyWrapper` object.
     */
    function lazyReverse() {
      if (this.__filtered__) {
        var result = new LazyWrapper(this);
        result.__dir__ = -1;
        result.__filtered__ = true;
      } else {
        result = this.clone();
        result.__dir__ *= -1;
      }
      return result;
    }

    /**
     * Extracts the unwrapped value from its lazy wrapper.
     *
     * @private
     * @name value
     * @memberOf LazyWrapper
     * @returns {*} Returns the unwrapped value.
     */
    function lazyValue() {
      var array = this.__wrapped__.value(),
          dir = this.__dir__,
          isArr = isArray(array),
          isRight = dir < 0,
          arrLength = isArr ? array.length : 0,
          view = getView(0, arrLength, this.__views__),
          start = view.start,
          end = view.end,
          length = end - start,
          index = isRight ? end : (start - 1),
          iteratees = this.__iteratees__,
          iterLength = iteratees.length,
          resIndex = 0,
          takeCount = nativeMin(length, this.__takeCount__);

      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
        return baseWrapperValue(array, this.__actions__);
      }
      var result = [];

      outer:
      while (length-- && resIndex < takeCount) {
        index += dir;

        var iterIndex = -1,
            value = array[index];

        while (++iterIndex < iterLength) {
          var data = iteratees[iterIndex],
              iteratee = data.iteratee,
              type = data.type,
              computed = iteratee(value);

          if (type == LAZY_MAP_FLAG) {
            value = computed;
          } else if (!computed) {
            if (type == LAZY_FILTER_FLAG) {
              continue outer;
            } else {
              break outer;
            }
          }
        }
        result[resIndex++] = value;
      }
      return result;
    }

    // Ensure `LazyWrapper` is an instance of `baseLodash`.
    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
    LazyWrapper.prototype.constructor = LazyWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a hash object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Hash(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the hash.
     *
     * @private
     * @name clear
     * @memberOf Hash
     */
    function hashClear() {
      this.__data__ = nativeCreate ? nativeCreate(null) : {};
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the hash.
     *
     * @private
     * @name delete
     * @memberOf Hash
     * @param {Object} hash The hash to modify.
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function hashDelete(key) {
      var result = this.has(key) && delete this.__data__[key];
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the hash value for `key`.
     *
     * @private
     * @name get
     * @memberOf Hash
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function hashGet(key) {
      var data = this.__data__;
      if (nativeCreate) {
        var result = data[key];
        return result === HASH_UNDEFINED ? undefined : result;
      }
      return hasOwnProperty.call(data, key) ? data[key] : undefined;
    }

    /**
     * Checks if a hash value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Hash
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function hashHas(key) {
      var data = this.__data__;
      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
    }

    /**
     * Sets the hash `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Hash
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the hash instance.
     */
    function hashSet(key, value) {
      var data = this.__data__;
      this.size += this.has(key) ? 0 : 1;
      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
      return this;
    }

    // Add methods to `Hash`.
    Hash.prototype.clear = hashClear;
    Hash.prototype['delete'] = hashDelete;
    Hash.prototype.get = hashGet;
    Hash.prototype.has = hashHas;
    Hash.prototype.set = hashSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an list cache object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function ListCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the list cache.
     *
     * @private
     * @name clear
     * @memberOf ListCache
     */
    function listCacheClear() {
      this.__data__ = [];
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the list cache.
     *
     * @private
     * @name delete
     * @memberOf ListCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function listCacheDelete(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        return false;
      }
      var lastIndex = data.length - 1;
      if (index == lastIndex) {
        data.pop();
      } else {
        splice.call(data, index, 1);
      }
      --this.size;
      return true;
    }

    /**
     * Gets the list cache value for `key`.
     *
     * @private
     * @name get
     * @memberOf ListCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function listCacheGet(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      return index < 0 ? undefined : data[index][1];
    }

    /**
     * Checks if a list cache value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf ListCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function listCacheHas(key) {
      return assocIndexOf(this.__data__, key) > -1;
    }

    /**
     * Sets the list cache `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf ListCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the list cache instance.
     */
    function listCacheSet(key, value) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        ++this.size;
        data.push([key, value]);
      } else {
        data[index][1] = value;
      }
      return this;
    }

    // Add methods to `ListCache`.
    ListCache.prototype.clear = listCacheClear;
    ListCache.prototype['delete'] = listCacheDelete;
    ListCache.prototype.get = listCacheGet;
    ListCache.prototype.has = listCacheHas;
    ListCache.prototype.set = listCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a map cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function MapCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the map.
     *
     * @private
     * @name clear
     * @memberOf MapCache
     */
    function mapCacheClear() {
      this.size = 0;
      this.__data__ = {
        'hash': new Hash,
        'map': new (Map || ListCache),
        'string': new Hash
      };
    }

    /**
     * Removes `key` and its value from the map.
     *
     * @private
     * @name delete
     * @memberOf MapCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function mapCacheDelete(key) {
      var result = getMapData(this, key)['delete'](key);
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the map value for `key`.
     *
     * @private
     * @name get
     * @memberOf MapCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function mapCacheGet(key) {
      return getMapData(this, key).get(key);
    }

    /**
     * Checks if a map value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf MapCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function mapCacheHas(key) {
      return getMapData(this, key).has(key);
    }

    /**
     * Sets the map `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf MapCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the map cache instance.
     */
    function mapCacheSet(key, value) {
      var data = getMapData(this, key),
          size = data.size;

      data.set(key, value);
      this.size += data.size == size ? 0 : 1;
      return this;
    }

    // Add methods to `MapCache`.
    MapCache.prototype.clear = mapCacheClear;
    MapCache.prototype['delete'] = mapCacheDelete;
    MapCache.prototype.get = mapCacheGet;
    MapCache.prototype.has = mapCacheHas;
    MapCache.prototype.set = mapCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     *
     * Creates an array cache object to store unique values.
     *
     * @private
     * @constructor
     * @param {Array} [values] The values to cache.
     */
    function SetCache(values) {
      var index = -1,
          length = values == null ? 0 : values.length;

      this.__data__ = new MapCache;
      while (++index < length) {
        this.add(values[index]);
      }
    }

    /**
     * Adds `value` to the array cache.
     *
     * @private
     * @name add
     * @memberOf SetCache
     * @alias push
     * @param {*} value The value to cache.
     * @returns {Object} Returns the cache instance.
     */
    function setCacheAdd(value) {
      this.__data__.set(value, HASH_UNDEFINED);
      return this;
    }

    /**
     * Checks if `value` is in the array cache.
     *
     * @private
     * @name has
     * @memberOf SetCache
     * @param {*} value The value to search for.
     * @returns {number} Returns `true` if `value` is found, else `false`.
     */
    function setCacheHas(value) {
      return this.__data__.has(value);
    }

    // Add methods to `SetCache`.
    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
    SetCache.prototype.has = setCacheHas;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a stack cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Stack(entries) {
      var data = this.__data__ = new ListCache(entries);
      this.size = data.size;
    }

    /**
     * Removes all key-value entries from the stack.
     *
     * @private
     * @name clear
     * @memberOf Stack
     */
    function stackClear() {
      this.__data__ = new ListCache;
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the stack.
     *
     * @private
     * @name delete
     * @memberOf Stack
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function stackDelete(key) {
      var data = this.__data__,
          result = data['delete'](key);

      this.size = data.size;
      return result;
    }

    /**
     * Gets the stack value for `key`.
     *
     * @private
     * @name get
     * @memberOf Stack
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function stackGet(key) {
      return this.__data__.get(key);
    }

    /**
     * Checks if a stack value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Stack
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function stackHas(key) {
      return this.__data__.has(key);
    }

    /**
     * Sets the stack `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Stack
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the stack cache instance.
     */
    function stackSet(key, value) {
      var data = this.__data__;
      if (data instanceof ListCache) {
        var pairs = data.__data__;
        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
          pairs.push([key, value]);
          this.size = ++data.size;
          return this;
        }
        data = this.__data__ = new MapCache(pairs);
      }
      data.set(key, value);
      this.size = data.size;
      return this;
    }

    // Add methods to `Stack`.
    Stack.prototype.clear = stackClear;
    Stack.prototype['delete'] = stackDelete;
    Stack.prototype.get = stackGet;
    Stack.prototype.has = stackHas;
    Stack.prototype.set = stackSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of the enumerable property names of the array-like `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @param {boolean} inherited Specify returning inherited property names.
     * @returns {Array} Returns the array of property names.
     */
    function arrayLikeKeys(value, inherited) {
      var isArr = isArray(value),
          isArg = !isArr && isArguments(value),
          isBuff = !isArr && !isArg && isBuffer(value),
          isType = !isArr && !isArg && !isBuff && isTypedArray(value),
          skipIndexes = isArr || isArg || isBuff || isType,
          result = skipIndexes ? baseTimes(value.length, String) : [],
          length = result.length;

      for (var key in value) {
        if ((inherited || hasOwnProperty.call(value, key)) &&
            !(skipIndexes && (
               // Safari 9 has enumerable `arguments.length` in strict mode.
               key == 'length' ||
               // Node.js 0.10 has enumerable non-index properties on buffers.
               (isBuff && (key == 'offset' || key == 'parent')) ||
               // PhantomJS 2 has enumerable non-index properties on typed arrays.
               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
               // Skip index properties.
               isIndex(key, length)
            ))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.sample` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @returns {*} Returns the random element.
     */
    function arraySample(array) {
      var length = array.length;
      return length ? array[baseRandom(0, length - 1)] : undefined;
    }

    /**
     * A specialized version of `_.sampleSize` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function arraySampleSize(array, n) {
      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
    }

    /**
     * A specialized version of `_.shuffle` for arrays.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function arrayShuffle(array) {
      return shuffleSelf(copyArray(array));
    }

    /**
     * This function is like `assignValue` except that it doesn't assign
     * `undefined` values.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignMergeValue(object, key, value) {
      if ((value !== undefined && !eq(object[key], value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Assigns `value` to `key` of `object` if the existing value is not equivalent
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignValue(object, key, value) {
      var objValue = object[key];
      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Gets the index at which the `key` is found in `array` of key-value pairs.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {*} key The key to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     */
    function assocIndexOf(array, key) {
      var length = array.length;
      while (length--) {
        if (eq(array[length][0], key)) {
          return length;
        }
      }
      return -1;
    }

    /**
     * Aggregates elements of `collection` on `accumulator` with keys transformed
     * by `iteratee` and values set by `setter`.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform keys.
     * @param {Object} accumulator The initial aggregated object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseAggregator(collection, setter, iteratee, accumulator) {
      baseEach(collection, function(value, key, collection) {
        setter(accumulator, value, iteratee(value), collection);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.assign` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssign(object, source) {
      return object && copyObject(source, keys(source), object);
    }

    /**
     * The base implementation of `_.assignIn` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssignIn(object, source) {
      return object && copyObject(source, keysIn(source), object);
    }

    /**
     * The base implementation of `assignValue` and `assignMergeValue` without
     * value checks.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function baseAssignValue(object, key, value) {
      if (key == '__proto__' && defineProperty) {
        defineProperty(object, key, {
          'configurable': true,
          'enumerable': true,
          'value': value,
          'writable': true
        });
      } else {
        object[key] = value;
      }
    }

    /**
     * The base implementation of `_.at` without support for individual paths.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {string[]} paths The property paths to pick.
     * @returns {Array} Returns the picked elements.
     */
    function baseAt(object, paths) {
      var index = -1,
          length = paths.length,
          result = Array(length),
          skip = object == null;

      while (++index < length) {
        result[index] = skip ? undefined : get(object, paths[index]);
      }
      return result;
    }

    /**
     * The base implementation of `_.clamp` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     */
    function baseClamp(number, lower, upper) {
      if (number === number) {
        if (upper !== undefined) {
          number = number <= upper ? number : upper;
        }
        if (lower !== undefined) {
          number = number >= lower ? number : lower;
        }
      }
      return number;
    }

    /**
     * The base implementation of `_.clone` and `_.cloneDeep` which tracks
     * traversed objects.
     *
     * @private
     * @param {*} value The value to clone.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Deep clone
     *  2 - Flatten inherited properties
     *  4 - Clone symbols
     * @param {Function} [customizer] The function to customize cloning.
     * @param {string} [key] The key of `value`.
     * @param {Object} [object] The parent object of `value`.
     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
     * @returns {*} Returns the cloned value.
     */
    function baseClone(value, bitmask, customizer, key, object, stack) {
      var result,
          isDeep = bitmask & CLONE_DEEP_FLAG,
          isFlat = bitmask & CLONE_FLAT_FLAG,
          isFull = bitmask & CLONE_SYMBOLS_FLAG;

      if (customizer) {
        result = object ? customizer(value, key, object, stack) : customizer(value);
      }
      if (result !== undefined) {
        return result;
      }
      if (!isObject(value)) {
        return value;
      }
      var isArr = isArray(value);
      if (isArr) {
        result = initCloneArray(value);
        if (!isDeep) {
          return copyArray(value, result);
        }
      } else {
        var tag = getTag(value),
            isFunc = tag == funcTag || tag == genTag;

        if (isBuffer(value)) {
          return cloneBuffer(value, isDeep);
        }
        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
          result = (isFlat || isFunc) ? {} : initCloneObject(value);
          if (!isDeep) {
            return isFlat
              ? copySymbolsIn(value, baseAssignIn(result, value))
              : copySymbols(value, baseAssign(result, value));
          }
        } else {
          if (!cloneableTags[tag]) {
            return object ? value : {};
          }
          result = initCloneByTag(value, tag, baseClone, isDeep);
        }
      }
      // Check for circular references and return its corresponding clone.
      stack || (stack = new Stack);
      var stacked = stack.get(value);
      if (stacked) {
        return stacked;
      }
      stack.set(value, result);

      var keysFunc = isFull
        ? (isFlat ? getAllKeysIn : getAllKeys)
        : (isFlat ? keysIn : keys);

      var props = isArr ? undefined : keysFunc(value);
      arrayEach(props || value, function(subValue, key) {
        if (props) {
          key = subValue;
          subValue = value[key];
        }
        // Recursively populate clone (susceptible to call stack limits).
        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
      });
      return result;
    }

    /**
     * The base implementation of `_.conforms` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     */
    function baseConforms(source) {
      var props = keys(source);
      return function(object) {
        return baseConformsTo(object, source, props);
      };
    }

    /**
     * The base implementation of `_.conformsTo` which accepts `props` to check.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     */
    function baseConformsTo(object, source, props) {
      var length = props.length;
      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (length--) {
        var key = props[length],
            predicate = source[key],
            value = object[key];

        if ((value === undefined && !(key in object)) || !predicate(value)) {
          return false;
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.delay` and `_.defer` which accepts `args`
     * to provide to `func`.
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {Array} args The arguments to provide to `func`.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    function baseDelay(func, wait, args) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return setTimeout(function() { func.apply(undefined, args); }, wait);
    }

    /**
     * The base implementation of methods like `_.difference` without support
     * for excluding multiple arrays or iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Array} values The values to exclude.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     */
    function baseDifference(array, values, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          isCommon = true,
          length = array.length,
          result = [],
          valuesLength = values.length;

      if (!length) {
        return result;
      }
      if (iteratee) {
        values = arrayMap(values, baseUnary(iteratee));
      }
      if (comparator) {
        includes = arrayIncludesWith;
        isCommon = false;
      }
      else if (values.length >= LARGE_ARRAY_SIZE) {
        includes = cacheHas;
        isCommon = false;
        values = new SetCache(values);
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee == null ? value : iteratee(value);

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var valuesIndex = valuesLength;
          while (valuesIndex--) {
            if (values[valuesIndex] === computed) {
              continue outer;
            }
          }
          result.push(value);
        }
        else if (!includes(values, computed, comparator)) {
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.forEach` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEach = createBaseEach(baseForOwn);

    /**
     * The base implementation of `_.forEachRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEachRight = createBaseEach(baseForOwnRight, true);

    /**
     * The base implementation of `_.every` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`
     */
    function baseEvery(collection, predicate) {
      var result = true;
      baseEach(collection, function(value, index, collection) {
        result = !!predicate(value, index, collection);
        return result;
      });
      return result;
    }

    /**
     * The base implementation of methods like `_.max` and `_.min` which accepts a
     * `comparator` to determine the extremum value.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The iteratee invoked per iteration.
     * @param {Function} comparator The comparator used to compare values.
     * @returns {*} Returns the extremum value.
     */
    function baseExtremum(array, iteratee, comparator) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        var value = array[index],
            current = iteratee(value);

        if (current != null && (computed === undefined
              ? (current === current && !isSymbol(current))
              : comparator(current, computed)
            )) {
          var computed = current,
              result = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.fill` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     */
    function baseFill(array, value, start, end) {
      var length = array.length;

      start = toInteger(start);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : toInteger(end);
      if (end < 0) {
        end += length;
      }
      end = start > end ? 0 : toLength(end);
      while (start < end) {
        array[start++] = value;
      }
      return array;
    }

    /**
     * The base implementation of `_.filter` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function baseFilter(collection, predicate) {
      var result = [];
      baseEach(collection, function(value, index, collection) {
        if (predicate(value, index, collection)) {
          result.push(value);
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.flatten` with support for restricting flattening.
     *
     * @private
     * @param {Array} array The array to flatten.
     * @param {number} depth The maximum recursion depth.
     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
     * @param {Array} [result=[]] The initial result value.
     * @returns {Array} Returns the new flattened array.
     */
    function baseFlatten(array, depth, predicate, isStrict, result) {
      var index = -1,
          length = array.length;

      predicate || (predicate = isFlattenable);
      result || (result = []);

      while (++index < length) {
        var value = array[index];
        if (depth > 0 && predicate(value)) {
          if (depth > 1) {
            // Recursively flatten arrays (susceptible to call stack limits).
            baseFlatten(value, depth - 1, predicate, isStrict, result);
          } else {
            arrayPush(result, value);
          }
        } else if (!isStrict) {
          result[result.length] = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `baseForOwn` which iterates over `object`
     * properties returned by `keysFunc` and invokes `iteratee` for each property.
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseFor = createBaseFor();

    /**
     * This function is like `baseFor` except that it iterates over properties
     * in the opposite order.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseForRight = createBaseFor(true);

    /**
     * The base implementation of `_.forOwn` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwn(object, iteratee) {
      return object && baseFor(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwnRight(object, iteratee) {
      return object && baseForRight(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.functions` which creates an array of
     * `object` function property names filtered from `props`.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} props The property names to filter.
     * @returns {Array} Returns the function names.
     */
    function baseFunctions(object, props) {
      return arrayFilter(props, function(key) {
        return isFunction(object[key]);
      });
    }

    /**
     * The base implementation of `_.get` without support for default values.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @returns {*} Returns the resolved value.
     */
    function baseGet(object, path) {
      path = castPath(path, object);

      var index = 0,
          length = path.length;

      while (object != null && index < length) {
        object = object[toKey(path[index++])];
      }
      return (index && index == length) ? object : undefined;
    }

    /**
     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
     * `keysFunc` and `symbolsFunc` to get the enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @param {Function} symbolsFunc The function to get the symbols of `object`.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function baseGetAllKeys(object, keysFunc, symbolsFunc) {
      var result = keysFunc(object);
      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
    }

    /**
     * The base implementation of `getTag` without fallbacks for buggy environments.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    function baseGetTag(value) {
      if (value == null) {
        return value === undefined ? undefinedTag : nullTag;
      }
      return (symToStringTag && symToStringTag in Object(value))
        ? getRawTag(value)
        : objectToString(value);
    }

    /**
     * The base implementation of `_.gt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     */
    function baseGt(value, other) {
      return value > other;
    }

    /**
     * The base implementation of `_.has` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHas(object, key) {
      return object != null && hasOwnProperty.call(object, key);
    }

    /**
     * The base implementation of `_.hasIn` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHasIn(object, key) {
      return object != null && key in Object(object);
    }

    /**
     * The base implementation of `_.inRange` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to check.
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     */
    function baseInRange(number, start, end) {
      return number >= nativeMin(start, end) && number < nativeMax(start, end);
    }

    /**
     * The base implementation of methods like `_.intersection`, without support
     * for iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of shared values.
     */
    function baseIntersection(arrays, iteratee, comparator) {
      var includes = comparator ? arrayIncludesWith : arrayIncludes,
          length = arrays[0].length,
          othLength = arrays.length,
          othIndex = othLength,
          caches = Array(othLength),
          maxLength = Infinity,
          result = [];

      while (othIndex--) {
        var array = arrays[othIndex];
        if (othIndex && iteratee) {
          array = arrayMap(array, baseUnary(iteratee));
        }
        maxLength = nativeMin(array.length, maxLength);
        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
          ? new SetCache(othIndex && array)
          : undefined;
      }
      array = arrays[0];

      var index = -1,
          seen = caches[0];

      outer:
      while (++index < length && result.length < maxLength) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (!(seen
              ? cacheHas(seen, computed)
              : includes(result, computed, comparator)
            )) {
          othIndex = othLength;
          while (--othIndex) {
            var cache = caches[othIndex];
            if (!(cache
                  ? cacheHas(cache, computed)
                  : includes(arrays[othIndex], computed, comparator))
                ) {
              continue outer;
            }
          }
          if (seen) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.invert` and `_.invertBy` which inverts
     * `object` with values transformed by `iteratee` and set by `setter`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform values.
     * @param {Object} accumulator The initial inverted object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseInverter(object, setter, iteratee, accumulator) {
      baseForOwn(object, function(value, key, object) {
        setter(accumulator, iteratee(value), key, object);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.invoke` without support for individual
     * method arguments.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {Array} args The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     */
    function baseInvoke(object, path, args) {
      path = castPath(path, object);
      object = parent(object, path);
      var func = object == null ? object : object[toKey(last(path))];
      return func == null ? undefined : apply(func, object, args);
    }

    /**
     * The base implementation of `_.isArguments`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     */
    function baseIsArguments(value) {
      return isObjectLike(value) && baseGetTag(value) == argsTag;
    }

    /**
     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     */
    function baseIsArrayBuffer(value) {
      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
    }

    /**
     * The base implementation of `_.isDate` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     */
    function baseIsDate(value) {
      return isObjectLike(value) && baseGetTag(value) == dateTag;
    }

    /**
     * The base implementation of `_.isEqual` which supports partial comparisons
     * and tracks traversed objects.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Unordered comparison
     *  2 - Partial comparison
     * @param {Function} [customizer] The function to customize comparisons.
     * @param {Object} [stack] Tracks traversed `value` and `other` objects.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     */
    function baseIsEqual(value, other, bitmask, customizer, stack) {
      if (value === other) {
        return true;
      }
      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
        return value !== value && other !== other;
      }
      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
    }

    /**
     * A specialized version of `baseIsEqual` for arrays and objects which performs
     * deep comparisons and tracks traversed objects enabling objects with circular
     * references to be compared.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} [stack] Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
      var objIsArr = isArray(object),
          othIsArr = isArray(other),
          objTag = objIsArr ? arrayTag : getTag(object),
          othTag = othIsArr ? arrayTag : getTag(other);

      objTag = objTag == argsTag ? objectTag : objTag;
      othTag = othTag == argsTag ? objectTag : othTag;

      var objIsObj = objTag == objectTag,
          othIsObj = othTag == objectTag,
          isSameTag = objTag == othTag;

      if (isSameTag && isBuffer(object)) {
        if (!isBuffer(other)) {
          return false;
        }
        objIsArr = true;
        objIsObj = false;
      }
      if (isSameTag && !objIsObj) {
        stack || (stack = new Stack);
        return (objIsArr || isTypedArray(object))
          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
      }
      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

        if (objIsWrapped || othIsWrapped) {
          var objUnwrapped = objIsWrapped ? object.value() : object,
              othUnwrapped = othIsWrapped ? other.value() : other;

          stack || (stack = new Stack);
          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
        }
      }
      if (!isSameTag) {
        return false;
      }
      stack || (stack = new Stack);
      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
    }

    /**
     * The base implementation of `_.isMap` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     */
    function baseIsMap(value) {
      return isObjectLike(value) && getTag(value) == mapTag;
    }

    /**
     * The base implementation of `_.isMatch` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Array} matchData The property names, values, and compare flags to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     */
    function baseIsMatch(object, source, matchData, customizer) {
      var index = matchData.length,
          length = index,
          noCustomizer = !customizer;

      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (index--) {
        var data = matchData[index];
        if ((noCustomizer && data[2])
              ? data[1] !== object[data[0]]
              : !(data[0] in object)
            ) {
          return false;
        }
      }
      while (++index < length) {
        data = matchData[index];
        var key = data[0],
            objValue = object[key],
            srcValue = data[1];

        if (noCustomizer && data[2]) {
          if (objValue === undefined && !(key in object)) {
            return false;
          }
        } else {
          var stack = new Stack;
          if (customizer) {
            var result = customizer(objValue, srcValue, key, object, source, stack);
          }
          if (!(result === undefined
                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
                : result
              )) {
            return false;
          }
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.isNative` without bad shim checks.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     */
    function baseIsNative(value) {
      if (!isObject(value) || isMasked(value)) {
        return false;
      }
      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
      return pattern.test(toSource(value));
    }

    /**
     * The base implementation of `_.isRegExp` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     */
    function baseIsRegExp(value) {
      return isObjectLike(value) && baseGetTag(value) == regexpTag;
    }

    /**
     * The base implementation of `_.isSet` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     */
    function baseIsSet(value) {
      return isObjectLike(value) && getTag(value) == setTag;
    }

    /**
     * The base implementation of `_.isTypedArray` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     */
    function baseIsTypedArray(value) {
      return isObjectLike(value) &&
        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
    }

    /**
     * The base implementation of `_.iteratee`.
     *
     * @private
     * @param {*} [value=_.identity] The value to convert to an iteratee.
     * @returns {Function} Returns the iteratee.
     */
    function baseIteratee(value) {
      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
      if (typeof value == 'function') {
        return value;
      }
      if (value == null) {
        return identity;
      }
      if (typeof value == 'object') {
        return isArray(value)
          ? baseMatchesProperty(value[0], value[1])
          : baseMatches(value);
      }
      return property(value);
    }

    /**
     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeys(object) {
      if (!isPrototype(object)) {
        return nativeKeys(object);
      }
      var result = [];
      for (var key in Object(object)) {
        if (hasOwnProperty.call(object, key) && key != 'constructor') {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeysIn(object) {
      if (!isObject(object)) {
        return nativeKeysIn(object);
      }
      var isProto = isPrototype(object),
          result = [];

      for (var key in object) {
        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.lt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     */
    function baseLt(value, other) {
      return value < other;
    }

    /**
     * The base implementation of `_.map` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function baseMap(collection, iteratee) {
      var index = -1,
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value, key, collection) {
        result[++index] = iteratee(value, key, collection);
      });
      return result;
    }

    /**
     * The base implementation of `_.matches` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatches(source) {
      var matchData = getMatchData(source);
      if (matchData.length == 1 && matchData[0][2]) {
        return matchesStrictComparable(matchData[0][0], matchData[0][1]);
      }
      return function(object) {
        return object === source || baseIsMatch(object, source, matchData);
      };
    }

    /**
     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
     *
     * @private
     * @param {string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatchesProperty(path, srcValue) {
      if (isKey(path) && isStrictComparable(srcValue)) {
        return matchesStrictComparable(toKey(path), srcValue);
      }
      return function(object) {
        var objValue = get(object, path);
        return (objValue === undefined && objValue === srcValue)
          ? hasIn(object, path)
          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
      };
    }

    /**
     * The base implementation of `_.merge` without support for multiple sources.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMerge(object, source, srcIndex, customizer, stack) {
      if (object === source) {
        return;
      }
      baseFor(source, function(srcValue, key) {
        if (isObject(srcValue)) {
          stack || (stack = new Stack);
          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
        }
        else {
          var newValue = customizer
            ? customizer(object[key], srcValue, (key + ''), object, source, stack)
            : undefined;

          if (newValue === undefined) {
            newValue = srcValue;
          }
          assignMergeValue(object, key, newValue);
        }
      }, keysIn);
    }

    /**
     * A specialized version of `baseMerge` for arrays and objects which performs
     * deep merges and tracks traversed objects enabling objects with circular
     * references to be merged.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {string} key The key of the value to merge.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} mergeFunc The function to merge values.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
      var objValue = object[key],
          srcValue = source[key],
          stacked = stack.get(srcValue);

      if (stacked) {
        assignMergeValue(object, key, stacked);
        return;
      }
      var newValue = customizer
        ? customizer(objValue, srcValue, (key + ''), object, source, stack)
        : undefined;

      var isCommon = newValue === undefined;

      if (isCommon) {
        var isArr = isArray(srcValue),
            isBuff = !isArr && isBuffer(srcValue),
            isTyped = !isArr && !isBuff && isTypedArray(srcValue);

        newValue = srcValue;
        if (isArr || isBuff || isTyped) {
          if (isArray(objValue)) {
            newValue = objValue;
          }
          else if (isArrayLikeObject(objValue)) {
            newValue = copyArray(objValue);
          }
          else if (isBuff) {
            isCommon = false;
            newValue = cloneBuffer(srcValue, true);
          }
          else if (isTyped) {
            isCommon = false;
            newValue = cloneTypedArray(srcValue, true);
          }
          else {
            newValue = [];
          }
        }
        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
          newValue = objValue;
          if (isArguments(objValue)) {
            newValue = toPlainObject(objValue);
          }
          else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
            newValue = initCloneObject(srcValue);
          }
        }
        else {
          isCommon = false;
        }
      }
      if (isCommon) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, newValue);
        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
        stack['delete'](srcValue);
      }
      assignMergeValue(object, key, newValue);
    }

    /**
     * The base implementation of `_.nth` which doesn't coerce arguments.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {number} n The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     */
    function baseNth(array, n) {
      var length = array.length;
      if (!length) {
        return;
      }
      n += n < 0 ? length : 0;
      return isIndex(n, length) ? array[n] : undefined;
    }

    /**
     * The base implementation of `_.orderBy` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {string[]} orders The sort orders of `iteratees`.
     * @returns {Array} Returns the new sorted array.
     */
    function baseOrderBy(collection, iteratees, orders) {
      var index = -1;
      iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee()));

      var result = baseMap(collection, function(value, key, collection) {
        var criteria = arrayMap(iteratees, function(iteratee) {
          return iteratee(value);
        });
        return { 'criteria': criteria, 'index': ++index, 'value': value };
      });

      return baseSortBy(result, function(object, other) {
        return compareMultiple(object, other, orders);
      });
    }

    /**
     * The base implementation of `_.pick` without support for individual
     * property identifiers.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @returns {Object} Returns the new object.
     */
    function basePick(object, paths) {
      return basePickBy(object, paths, function(value, path) {
        return hasIn(object, path);
      });
    }

    /**
     * The base implementation of  `_.pickBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @param {Function} predicate The function invoked per property.
     * @returns {Object} Returns the new object.
     */
    function basePickBy(object, paths, predicate) {
      var index = -1,
          length = paths.length,
          result = {};

      while (++index < length) {
        var path = paths[index],
            value = baseGet(object, path);

        if (predicate(value, path)) {
          baseSet(result, castPath(path, object), value);
        }
      }
      return result;
    }

    /**
     * A specialized version of `baseProperty` which supports deep paths.
     *
     * @private
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     */
    function basePropertyDeep(path) {
      return function(object) {
        return baseGet(object, path);
      };
    }

    /**
     * The base implementation of `_.pullAllBy` without support for iteratee
     * shorthands.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     */
    function basePullAll(array, values, iteratee, comparator) {
      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
          index = -1,
          length = values.length,
          seen = array;

      if (array === values) {
        values = copyArray(values);
      }
      if (iteratee) {
        seen = arrayMap(array, baseUnary(iteratee));
      }
      while (++index < length) {
        var fromIndex = 0,
            value = values[index],
            computed = iteratee ? iteratee(value) : value;

        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
          if (seen !== array) {
            splice.call(seen, fromIndex, 1);
          }
          splice.call(array, fromIndex, 1);
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.pullAt` without support for individual
     * indexes or capturing the removed elements.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {number[]} indexes The indexes of elements to remove.
     * @returns {Array} Returns `array`.
     */
    function basePullAt(array, indexes) {
      var length = array ? indexes.length : 0,
          lastIndex = length - 1;

      while (length--) {
        var index = indexes[length];
        if (length == lastIndex || index !== previous) {
          var previous = index;
          if (isIndex(index)) {
            splice.call(array, index, 1);
          } else {
            baseUnset(array, index);
          }
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.random` without support for returning
     * floating-point numbers.
     *
     * @private
     * @param {number} lower The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the random number.
     */
    function baseRandom(lower, upper) {
      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
    }

    /**
     * The base implementation of `_.range` and `_.rangeRight` which doesn't
     * coerce arguments.
     *
     * @private
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @param {number} step The value to increment or decrement by.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the range of numbers.
     */
    function baseRange(start, end, step, fromRight) {
      var index = -1,
          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
          result = Array(length);

      while (length--) {
        result[fromRight ? length : ++index] = start;
        start += step;
      }
      return result;
    }

    /**
     * The base implementation of `_.repeat` which doesn't coerce arguments.
     *
     * @private
     * @param {string} string The string to repeat.
     * @param {number} n The number of times to repeat the string.
     * @returns {string} Returns the repeated string.
     */
    function baseRepeat(string, n) {
      var result = '';
      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
        return result;
      }
      // Leverage the exponentiation by squaring algorithm for a faster repeat.
      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
      do {
        if (n % 2) {
          result += string;
        }
        n = nativeFloor(n / 2);
        if (n) {
          string += string;
        }
      } while (n);

      return result;
    }

    /**
     * The base implementation of `_.rest` which doesn't validate or coerce arguments.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     */
    function baseRest(func, start) {
      return setToString(overRest(func, start, identity), func + '');
    }

    /**
     * The base implementation of `_.sample`.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     */
    function baseSample(collection) {
      return arraySample(values(collection));
    }

    /**
     * The base implementation of `_.sampleSize` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function baseSampleSize(collection, n) {
      var array = values(collection);
      return shuffleSelf(array, baseClamp(n, 0, array.length));
    }

    /**
     * The base implementation of `_.set`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseSet(object, path, value, customizer) {
      if (!isObject(object)) {
        return object;
      }
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          lastIndex = length - 1,
          nested = object;

      while (nested != null && ++index < length) {
        var key = toKey(path[index]),
            newValue = value;

        if (index != lastIndex) {
          var objValue = nested[key];
          newValue = customizer ? customizer(objValue, key, nested) : undefined;
          if (newValue === undefined) {
            newValue = isObject(objValue)
              ? objValue
              : (isIndex(path[index + 1]) ? [] : {});
          }
        }
        assignValue(nested, key, newValue);
        nested = nested[key];
      }
      return object;
    }

    /**
     * The base implementation of `setData` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var baseSetData = !metaMap ? identity : function(func, data) {
      metaMap.set(func, data);
      return func;
    };

    /**
     * The base implementation of `setToString` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var baseSetToString = !defineProperty ? identity : function(func, string) {
      return defineProperty(func, 'toString', {
        'configurable': true,
        'enumerable': false,
        'value': constant(string),
        'writable': true
      });
    };

    /**
     * The base implementation of `_.shuffle`.
     *
     * @private
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function baseShuffle(collection) {
      return shuffleSelf(values(collection));
    }

    /**
     * The base implementation of `_.slice` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseSlice(array, start, end) {
      var index = -1,
          length = array.length;

      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = end > length ? length : end;
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : ((end - start) >>> 0);
      start >>>= 0;

      var result = Array(length);
      while (++index < length) {
        result[index] = array[index + start];
      }
      return result;
    }

    /**
     * The base implementation of `_.some` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function baseSome(collection, predicate) {
      var result;

      baseEach(collection, function(value, index, collection) {
        result = predicate(value, index, collection);
        return !result;
      });
      return !!result;
    }

    /**
     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
     * performs a binary search of `array` to determine the index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndex(array, value, retHighest) {
      var low = 0,
          high = array == null ? low : array.length;

      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
        while (low < high) {
          var mid = (low + high) >>> 1,
              computed = array[mid];

          if (computed !== null && !isSymbol(computed) &&
              (retHighest ? (computed <= value) : (computed < value))) {
            low = mid + 1;
          } else {
            high = mid;
          }
        }
        return high;
      }
      return baseSortedIndexBy(array, value, identity, retHighest);
    }

    /**
     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
     * which invokes `iteratee` for `value` and each element of `array` to compute
     * their sort ranking. The iteratee is invoked with one argument; (value).
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} iteratee The iteratee invoked per element.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndexBy(array, value, iteratee, retHighest) {
      value = iteratee(value);

      var low = 0,
          high = array == null ? 0 : array.length,
          valIsNaN = value !== value,
          valIsNull = value === null,
          valIsSymbol = isSymbol(value),
          valIsUndefined = value === undefined;

      while (low < high) {
        var mid = nativeFloor((low + high) / 2),
            computed = iteratee(array[mid]),
            othIsDefined = computed !== undefined,
            othIsNull = computed === null,
            othIsReflexive = computed === computed,
            othIsSymbol = isSymbol(computed);

        if (valIsNaN) {
          var setLow = retHighest || othIsReflexive;
        } else if (valIsUndefined) {
          setLow = othIsReflexive && (retHighest || othIsDefined);
        } else if (valIsNull) {
          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
        } else if (valIsSymbol) {
          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
        } else if (othIsNull || othIsSymbol) {
          setLow = false;
        } else {
          setLow = retHighest ? (computed <= value) : (computed < value);
        }
        if (setLow) {
          low = mid + 1;
        } else {
          high = mid;
        }
      }
      return nativeMin(high, MAX_ARRAY_INDEX);
    }

    /**
     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
     * support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseSortedUniq(array, iteratee) {
      var index = -1,
          length = array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        if (!index || !eq(computed, seen)) {
          var seen = computed;
          result[resIndex++] = value === 0 ? 0 : value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.toNumber` which doesn't ensure correct
     * conversions of binary, hexadecimal, or octal string values.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     */
    function baseToNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      return +value;
    }

    /**
     * The base implementation of `_.toString` which doesn't convert nullish
     * values to empty strings.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {string} Returns the string.
     */
    function baseToString(value) {
      // Exit early for strings to avoid a performance hit in some environments.
      if (typeof value == 'string') {
        return value;
      }
      if (isArray(value)) {
        // Recursively convert values (susceptible to call stack limits).
        return arrayMap(value, baseToString) + '';
      }
      if (isSymbol(value)) {
        return symbolToString ? symbolToString.call(value) : '';
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * The base implementation of `_.uniqBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseUniq(array, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          length = array.length,
          isCommon = true,
          result = [],
          seen = result;

      if (comparator) {
        isCommon = false;
        includes = arrayIncludesWith;
      }
      else if (length >= LARGE_ARRAY_SIZE) {
        var set = iteratee ? null : createSet(array);
        if (set) {
          return setToArray(set);
        }
        isCommon = false;
        includes = cacheHas;
        seen = new SetCache;
      }
      else {
        seen = iteratee ? [] : result;
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var seenIndex = seen.length;
          while (seenIndex--) {
            if (seen[seenIndex] === computed) {
              continue outer;
            }
          }
          if (iteratee) {
            seen.push(computed);
          }
          result.push(value);
        }
        else if (!includes(seen, computed, comparator)) {
          if (seen !== result) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.unset`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The property path to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     */
    function baseUnset(object, path) {
      path = castPath(path, object);
      object = parent(object, path);
      return object == null || delete object[toKey(last(path))];
    }

    /**
     * The base implementation of `_.update`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to update.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseUpdate(object, path, updater, customizer) {
      return baseSet(object, path, updater(baseGet(object, path)), customizer);
    }

    /**
     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
     * without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {Function} predicate The function invoked per iteration.
     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseWhile(array, predicate, isDrop, fromRight) {
      var length = array.length,
          index = fromRight ? length : -1;

      while ((fromRight ? index-- : ++index < length) &&
        predicate(array[index], index, array)) {}

      return isDrop
        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
    }

    /**
     * The base implementation of `wrapperValue` which returns the result of
     * performing a sequence of actions on the unwrapped `value`, where each
     * successive action is supplied the return value of the previous.
     *
     * @private
     * @param {*} value The unwrapped value.
     * @param {Array} actions Actions to perform to resolve the unwrapped value.
     * @returns {*} Returns the resolved value.
     */
    function baseWrapperValue(value, actions) {
      var result = value;
      if (result instanceof LazyWrapper) {
        result = result.value();
      }
      return arrayReduce(actions, function(result, action) {
        return action.func.apply(action.thisArg, arrayPush([result], action.args));
      }, result);
    }

    /**
     * The base implementation of methods like `_.xor`, without support for
     * iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of values.
     */
    function baseXor(arrays, iteratee, comparator) {
      var length = arrays.length;
      if (length < 2) {
        return length ? baseUniq(arrays[0]) : [];
      }
      var index = -1,
          result = Array(length);

      while (++index < length) {
        var array = arrays[index],
            othIndex = -1;

        while (++othIndex < length) {
          if (othIndex != index) {
            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
          }
        }
      }
      return baseUniq(baseFlatten(result, 1), iteratee, comparator);
    }

    /**
     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
     *
     * @private
     * @param {Array} props The property identifiers.
     * @param {Array} values The property values.
     * @param {Function} assignFunc The function to assign values.
     * @returns {Object} Returns the new object.
     */
    function baseZipObject(props, values, assignFunc) {
      var index = -1,
          length = props.length,
          valsLength = values.length,
          result = {};

      while (++index < length) {
        var value = index < valsLength ? values[index] : undefined;
        assignFunc(result, props[index], value);
      }
      return result;
    }

    /**
     * Casts `value` to an empty array if it's not an array like object.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Array|Object} Returns the cast array-like object.
     */
    function castArrayLikeObject(value) {
      return isArrayLikeObject(value) ? value : [];
    }

    /**
     * Casts `value` to `identity` if it's not a function.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Function} Returns cast function.
     */
    function castFunction(value) {
      return typeof value == 'function' ? value : identity;
    }

    /**
     * Casts `value` to a path array if it's not one.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {Object} [object] The object to query keys on.
     * @returns {Array} Returns the cast property path array.
     */
    function castPath(value, object) {
      if (isArray(value)) {
        return value;
      }
      return isKey(value, object) ? [value] : stringToPath(toString(value));
    }

    /**
     * A `baseRest` alias which can be replaced with `identity` by module
     * replacement plugins.
     *
     * @private
     * @type {Function}
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    var castRest = baseRest;

    /**
     * Casts `array` to a slice if it's needed.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {number} start The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the cast slice.
     */
    function castSlice(array, start, end) {
      var length = array.length;
      end = end === undefined ? length : end;
      return (!start && end >= length) ? array : baseSlice(array, start, end);
    }

    /**
     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
     *
     * @private
     * @param {number|Object} id The timer id or timeout object of the timer to clear.
     */
    var clearTimeout = ctxClearTimeout || function(id) {
      return root.clearTimeout(id);
    };

    /**
     * Creates a clone of  `buffer`.
     *
     * @private
     * @param {Buffer} buffer The buffer to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Buffer} Returns the cloned buffer.
     */
    function cloneBuffer(buffer, isDeep) {
      if (isDeep) {
        return buffer.slice();
      }
      var length = buffer.length,
          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);

      buffer.copy(result);
      return result;
    }

    /**
     * Creates a clone of `arrayBuffer`.
     *
     * @private
     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
     * @returns {ArrayBuffer} Returns the cloned array buffer.
     */
    function cloneArrayBuffer(arrayBuffer) {
      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
      new Uint8Array(result).set(new Uint8Array(arrayBuffer));
      return result;
    }

    /**
     * Creates a clone of `dataView`.
     *
     * @private
     * @param {Object} dataView The data view to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned data view.
     */
    function cloneDataView(dataView, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
    }

    /**
     * Creates a clone of `map`.
     *
     * @private
     * @param {Object} map The map to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned map.
     */
    function cloneMap(map, isDeep, cloneFunc) {
      var array = isDeep ? cloneFunc(mapToArray(map), CLONE_DEEP_FLAG) : mapToArray(map);
      return arrayReduce(array, addMapEntry, new map.constructor);
    }

    /**
     * Creates a clone of `regexp`.
     *
     * @private
     * @param {Object} regexp The regexp to clone.
     * @returns {Object} Returns the cloned regexp.
     */
    function cloneRegExp(regexp) {
      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
      result.lastIndex = regexp.lastIndex;
      return result;
    }

    /**
     * Creates a clone of `set`.
     *
     * @private
     * @param {Object} set The set to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned set.
     */
    function cloneSet(set, isDeep, cloneFunc) {
      var array = isDeep ? cloneFunc(setToArray(set), CLONE_DEEP_FLAG) : setToArray(set);
      return arrayReduce(array, addSetEntry, new set.constructor);
    }

    /**
     * Creates a clone of the `symbol` object.
     *
     * @private
     * @param {Object} symbol The symbol object to clone.
     * @returns {Object} Returns the cloned symbol object.
     */
    function cloneSymbol(symbol) {
      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
    }

    /**
     * Creates a clone of `typedArray`.
     *
     * @private
     * @param {Object} typedArray The typed array to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned typed array.
     */
    function cloneTypedArray(typedArray, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
    }

    /**
     * Compares values to sort them in ascending order.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {number} Returns the sort order indicator for `value`.
     */
    function compareAscending(value, other) {
      if (value !== other) {
        var valIsDefined = value !== undefined,
            valIsNull = value === null,
            valIsReflexive = value === value,
            valIsSymbol = isSymbol(value);

        var othIsDefined = other !== undefined,
            othIsNull = other === null,
            othIsReflexive = other === other,
            othIsSymbol = isSymbol(other);

        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
            (valIsNull && othIsDefined && othIsReflexive) ||
            (!valIsDefined && othIsReflexive) ||
            !valIsReflexive) {
          return 1;
        }
        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
            (othIsNull && valIsDefined && valIsReflexive) ||
            (!othIsDefined && valIsReflexive) ||
            !othIsReflexive) {
          return -1;
        }
      }
      return 0;
    }

    /**
     * Used by `_.orderBy` to compare multiple properties of a value to another
     * and stable sort them.
     *
     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
     * specify an order of "desc" for descending or "asc" for ascending sort order
     * of corresponding values.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {boolean[]|string[]} orders The order to sort by for each property.
     * @returns {number} Returns the sort order indicator for `object`.
     */
    function compareMultiple(object, other, orders) {
      var index = -1,
          objCriteria = object.criteria,
          othCriteria = other.criteria,
          length = objCriteria.length,
          ordersLength = orders.length;

      while (++index < length) {
        var result = compareAscending(objCriteria[index], othCriteria[index]);
        if (result) {
          if (index >= ordersLength) {
            return result;
          }
          var order = orders[index];
          return result * (order == 'desc' ? -1 : 1);
        }
      }
      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
      // that causes it, under certain circumstances, to provide the same value for
      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
      // for more details.
      //
      // This also ensures a stable sort in V8 and other engines.
      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
      return object.index - other.index;
    }

    /**
     * Creates an array that is the composition of partially applied arguments,
     * placeholders, and provided arguments into a single array of arguments.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to prepend to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgs(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersLength = holders.length,
          leftIndex = -1,
          leftLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(leftLength + rangeLength),
          isUncurried = !isCurried;

      while (++leftIndex < leftLength) {
        result[leftIndex] = partials[leftIndex];
      }
      while (++argsIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[holders[argsIndex]] = args[argsIndex];
        }
      }
      while (rangeLength--) {
        result[leftIndex++] = args[argsIndex++];
      }
      return result;
    }

    /**
     * This function is like `composeArgs` except that the arguments composition
     * is tailored for `_.partialRight`.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to append to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgsRight(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersIndex = -1,
          holdersLength = holders.length,
          rightIndex = -1,
          rightLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(rangeLength + rightLength),
          isUncurried = !isCurried;

      while (++argsIndex < rangeLength) {
        result[argsIndex] = args[argsIndex];
      }
      var offset = argsIndex;
      while (++rightIndex < rightLength) {
        result[offset + rightIndex] = partials[rightIndex];
      }
      while (++holdersIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[offset + holders[holdersIndex]] = args[argsIndex++];
        }
      }
      return result;
    }

    /**
     * Copies the values of `source` to `array`.
     *
     * @private
     * @param {Array} source The array to copy values from.
     * @param {Array} [array=[]] The array to copy values to.
     * @returns {Array} Returns `array`.
     */
    function copyArray(source, array) {
      var index = -1,
          length = source.length;

      array || (array = Array(length));
      while (++index < length) {
        array[index] = source[index];
      }
      return array;
    }

    /**
     * Copies properties of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy properties from.
     * @param {Array} props The property identifiers to copy.
     * @param {Object} [object={}] The object to copy properties to.
     * @param {Function} [customizer] The function to customize copied values.
     * @returns {Object} Returns `object`.
     */
    function copyObject(source, props, object, customizer) {
      var isNew = !object;
      object || (object = {});

      var index = -1,
          length = props.length;

      while (++index < length) {
        var key = props[index];

        var newValue = customizer
          ? customizer(object[key], source[key], key, object, source)
          : undefined;

        if (newValue === undefined) {
          newValue = source[key];
        }
        if (isNew) {
          baseAssignValue(object, key, newValue);
        } else {
          assignValue(object, key, newValue);
        }
      }
      return object;
    }

    /**
     * Copies own symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbols(source, object) {
      return copyObject(source, getSymbols(source), object);
    }

    /**
     * Copies own and inherited symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbolsIn(source, object) {
      return copyObject(source, getSymbolsIn(source), object);
    }

    /**
     * Creates a function like `_.groupBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} [initializer] The accumulator object initializer.
     * @returns {Function} Returns the new aggregator function.
     */
    function createAggregator(setter, initializer) {
      return function(collection, iteratee) {
        var func = isArray(collection) ? arrayAggregator : baseAggregator,
            accumulator = initializer ? initializer() : {};

        return func(collection, setter, getIteratee(iteratee, 2), accumulator);
      };
    }

    /**
     * Creates a function like `_.assign`.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @returns {Function} Returns the new assigner function.
     */
    function createAssigner(assigner) {
      return baseRest(function(object, sources) {
        var index = -1,
            length = sources.length,
            customizer = length > 1 ? sources[length - 1] : undefined,
            guard = length > 2 ? sources[2] : undefined;

        customizer = (assigner.length > 3 && typeof customizer == 'function')
          ? (length--, customizer)
          : undefined;

        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
          customizer = length < 3 ? undefined : customizer;
          length = 1;
        }
        object = Object(object);
        while (++index < length) {
          var source = sources[index];
          if (source) {
            assigner(object, source, index, customizer);
          }
        }
        return object;
      });
    }

    /**
     * Creates a `baseEach` or `baseEachRight` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseEach(eachFunc, fromRight) {
      return function(collection, iteratee) {
        if (collection == null) {
          return collection;
        }
        if (!isArrayLike(collection)) {
          return eachFunc(collection, iteratee);
        }
        var length = collection.length,
            index = fromRight ? length : -1,
            iterable = Object(collection);

        while ((fromRight ? index-- : ++index < length)) {
          if (iteratee(iterable[index], index, iterable) === false) {
            break;
          }
        }
        return collection;
      };
    }

    /**
     * Creates a base function for methods like `_.forIn` and `_.forOwn`.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseFor(fromRight) {
      return function(object, iteratee, keysFunc) {
        var index = -1,
            iterable = Object(object),
            props = keysFunc(object),
            length = props.length;

        while (length--) {
          var key = props[fromRight ? length : ++index];
          if (iteratee(iterable[key], key, iterable) === false) {
            break;
          }
        }
        return object;
      };
    }

    /**
     * Creates a function that wraps `func` to invoke it with the optional `this`
     * binding of `thisArg`.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createBind(func, bitmask, thisArg) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(isBind ? thisArg : this, arguments);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.lowerFirst`.
     *
     * @private
     * @param {string} methodName The name of the `String` case method to use.
     * @returns {Function} Returns the new case function.
     */
    function createCaseFirst(methodName) {
      return function(string) {
        string = toString(string);

        var strSymbols = hasUnicode(string)
          ? stringToArray(string)
          : undefined;

        var chr = strSymbols
          ? strSymbols[0]
          : string.charAt(0);

        var trailing = strSymbols
          ? castSlice(strSymbols, 1).join('')
          : string.slice(1);

        return chr[methodName]() + trailing;
      };
    }

    /**
     * Creates a function like `_.camelCase`.
     *
     * @private
     * @param {Function} callback The function to combine each word.
     * @returns {Function} Returns the new compounder function.
     */
    function createCompounder(callback) {
      return function(string) {
        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
      };
    }

    /**
     * Creates a function that produces an instance of `Ctor` regardless of
     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
     *
     * @private
     * @param {Function} Ctor The constructor to wrap.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCtor(Ctor) {
      return function() {
        // Use a `switch` statement to work with class constructors. See
        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
        // for more details.
        var args = arguments;
        switch (args.length) {
          case 0: return new Ctor;
          case 1: return new Ctor(args[0]);
          case 2: return new Ctor(args[0], args[1]);
          case 3: return new Ctor(args[0], args[1], args[2]);
          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
        }
        var thisBinding = baseCreate(Ctor.prototype),
            result = Ctor.apply(thisBinding, args);

        // Mimic the constructor's `return` behavior.
        // See https://es5.github.io/#x13.2.2 for more details.
        return isObject(result) ? result : thisBinding;
      };
    }

    /**
     * Creates a function that wraps `func` to enable currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {number} arity The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCurry(func, bitmask, arity) {
      var Ctor = createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length,
            placeholder = getHolder(wrapper);

        while (index--) {
          args[index] = arguments[index];
        }
        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
          ? []
          : replaceHolders(args, placeholder);

        length -= holders.length;
        if (length < arity) {
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, undefined,
            args, holders, undefined, undefined, arity - length);
        }
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return apply(fn, this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.find` or `_.findLast` function.
     *
     * @private
     * @param {Function} findIndexFunc The function to find the collection index.
     * @returns {Function} Returns the new find function.
     */
    function createFind(findIndexFunc) {
      return function(collection, predicate, fromIndex) {
        var iterable = Object(collection);
        if (!isArrayLike(collection)) {
          var iteratee = getIteratee(predicate, 3);
          collection = keys(collection);
          predicate = function(key) { return iteratee(iterable[key], key, iterable); };
        }
        var index = findIndexFunc(collection, predicate, fromIndex);
        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
      };
    }

    /**
     * Creates a `_.flow` or `_.flowRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new flow function.
     */
    function createFlow(fromRight) {
      return flatRest(function(funcs) {
        var length = funcs.length,
            index = length,
            prereq = LodashWrapper.prototype.thru;

        if (fromRight) {
          funcs.reverse();
        }
        while (index--) {
          var func = funcs[index];
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
            var wrapper = new LodashWrapper([], true);
          }
        }
        index = wrapper ? index : length;
        while (++index < length) {
          func = funcs[index];

          var funcName = getFuncName(func),
              data = funcName == 'wrapper' ? getData(func) : undefined;

          if (data && isLaziable(data[0]) &&
                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
                !data[4].length && data[9] == 1
              ) {
            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
          } else {
            wrapper = (func.length == 1 && isLaziable(func))
              ? wrapper[funcName]()
              : wrapper.thru(func);
          }
        }
        return function() {
          var args = arguments,
              value = args[0];

          if (wrapper && args.length == 1 && isArray(value)) {
            return wrapper.plant(value).value();
          }
          var index = 0,
              result = length ? funcs[index].apply(this, args) : value;

          while (++index < length) {
            result = funcs[index].call(this, result);
          }
          return result;
        };
      });
    }

    /**
     * Creates a function that wraps `func` to invoke it with optional `this`
     * binding of `thisArg`, partial application, and currying.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [partialsRight] The arguments to append to those provided
     *  to the new function.
     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
      var isAry = bitmask & WRAP_ARY_FLAG,
          isBind = bitmask & WRAP_BIND_FLAG,
          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
          isFlip = bitmask & WRAP_FLIP_FLAG,
          Ctor = isBindKey ? undefined : createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length;

        while (index--) {
          args[index] = arguments[index];
        }
        if (isCurried) {
          var placeholder = getHolder(wrapper),
              holdersCount = countHolders(args, placeholder);
        }
        if (partials) {
          args = composeArgs(args, partials, holders, isCurried);
        }
        if (partialsRight) {
          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
        }
        length -= holdersCount;
        if (isCurried && length < arity) {
          var newHolders = replaceHolders(args, placeholder);
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, thisArg,
            args, newHolders, argPos, ary, arity - length
          );
        }
        var thisBinding = isBind ? thisArg : this,
            fn = isBindKey ? thisBinding[func] : func;

        length = args.length;
        if (argPos) {
          args = reorder(args, argPos);
        } else if (isFlip && length > 1) {
          args.reverse();
        }
        if (isAry && ary < length) {
          args.length = ary;
        }
        if (this && this !== root && this instanceof wrapper) {
          fn = Ctor || createCtor(fn);
        }
        return fn.apply(thisBinding, args);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.invertBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} toIteratee The function to resolve iteratees.
     * @returns {Function} Returns the new inverter function.
     */
    function createInverter(setter, toIteratee) {
      return function(object, iteratee) {
        return baseInverter(object, setter, toIteratee(iteratee), {});
      };
    }

    /**
     * Creates a function that performs a mathematical operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @param {number} [defaultValue] The value used for `undefined` arguments.
     * @returns {Function} Returns the new mathematical operation function.
     */
    function createMathOperation(operator, defaultValue) {
      return function(value, other) {
        var result;
        if (value === undefined && other === undefined) {
          return defaultValue;
        }
        if (value !== undefined) {
          result = value;
        }
        if (other !== undefined) {
          if (result === undefined) {
            return other;
          }
          if (typeof value == 'string' || typeof other == 'string') {
            value = baseToString(value);
            other = baseToString(other);
          } else {
            value = baseToNumber(value);
            other = baseToNumber(other);
          }
          result = operator(value, other);
        }
        return result;
      };
    }

    /**
     * Creates a function like `_.over`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over iteratees.
     * @returns {Function} Returns the new over function.
     */
    function createOver(arrayFunc) {
      return flatRest(function(iteratees) {
        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
        return baseRest(function(args) {
          var thisArg = this;
          return arrayFunc(iteratees, function(iteratee) {
            return apply(iteratee, thisArg, args);
          });
        });
      });
    }

    /**
     * Creates the padding for `string` based on `length`. The `chars` string
     * is truncated if the number of characters exceeds `length`.
     *
     * @private
     * @param {number} length The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padding for `string`.
     */
    function createPadding(length, chars) {
      chars = chars === undefined ? ' ' : baseToString(chars);

      var charsLength = chars.length;
      if (charsLength < 2) {
        return charsLength ? baseRepeat(chars, length) : chars;
      }
      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
      return hasUnicode(chars)
        ? castSlice(stringToArray(result), 0, length).join('')
        : result.slice(0, length);
    }

    /**
     * Creates a function that wraps `func` to invoke it with the `this` binding
     * of `thisArg` and `partials` prepended to the arguments it receives.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {Array} partials The arguments to prepend to those provided to
     *  the new function.
     * @returns {Function} Returns the new wrapped function.
     */
    function createPartial(func, bitmask, thisArg, partials) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var argsIndex = -1,
            argsLength = arguments.length,
            leftIndex = -1,
            leftLength = partials.length,
            args = Array(leftLength + argsLength),
            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;

        while (++leftIndex < leftLength) {
          args[leftIndex] = partials[leftIndex];
        }
        while (argsLength--) {
          args[leftIndex++] = arguments[++argsIndex];
        }
        return apply(fn, isBind ? thisArg : this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.range` or `_.rangeRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new range function.
     */
    function createRange(fromRight) {
      return function(start, end, step) {
        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
          end = step = undefined;
        }
        // Ensure the sign of `-0` is preserved.
        start = toFinite(start);
        if (end === undefined) {
          end = start;
          start = 0;
        } else {
          end = toFinite(end);
        }
        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
        return baseRange(start, end, step, fromRight);
      };
    }

    /**
     * Creates a function that performs a relational operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @returns {Function} Returns the new relational operation function.
     */
    function createRelationalOperation(operator) {
      return function(value, other) {
        if (!(typeof value == 'string' && typeof other == 'string')) {
          value = toNumber(value);
          other = toNumber(other);
        }
        return operator(value, other);
      };
    }

    /**
     * Creates a function that wraps `func` to continue currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {Function} wrapFunc The function to create the `func` wrapper.
     * @param {*} placeholder The placeholder value.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
      var isCurry = bitmask & WRAP_CURRY_FLAG,
          newHolders = isCurry ? holders : undefined,
          newHoldersRight = isCurry ? undefined : holders,
          newPartials = isCurry ? partials : undefined,
          newPartialsRight = isCurry ? undefined : partials;

      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);

      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
      }
      var newData = [
        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
        newHoldersRight, argPos, ary, arity
      ];

      var result = wrapFunc.apply(undefined, newData);
      if (isLaziable(func)) {
        setData(result, newData);
      }
      result.placeholder = placeholder;
      return setWrapToString(result, func, bitmask);
    }

    /**
     * Creates a function like `_.round`.
     *
     * @private
     * @param {string} methodName The name of the `Math` method to use when rounding.
     * @returns {Function} Returns the new round function.
     */
    function createRound(methodName) {
      var func = Math[methodName];
      return function(number, precision) {
        number = toNumber(number);
        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
        if (precision) {
          // Shift with exponential notation to avoid floating-point issues.
          // See [MDN](https://mdn.io/round#Examples) for more details.
          var pair = (toString(number) + 'e').split('e'),
              value = func(pair[0] + 'e' + (+pair[1] + precision));

          pair = (toString(value) + 'e').split('e');
          return +(pair[0] + 'e' + (+pair[1] - precision));
        }
        return func(number);
      };
    }

    /**
     * Creates a set object of `values`.
     *
     * @private
     * @param {Array} values The values to add to the set.
     * @returns {Object} Returns the new set.
     */
    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
      return new Set(values);
    };

    /**
     * Creates a `_.toPairs` or `_.toPairsIn` function.
     *
     * @private
     * @param {Function} keysFunc The function to get the keys of a given object.
     * @returns {Function} Returns the new pairs function.
     */
    function createToPairs(keysFunc) {
      return function(object) {
        var tag = getTag(object);
        if (tag == mapTag) {
          return mapToArray(object);
        }
        if (tag == setTag) {
          return setToPairs(object);
        }
        return baseToPairs(object, keysFunc(object));
      };
    }

    /**
     * Creates a function that either curries or invokes `func` with optional
     * `this` binding and partially applied arguments.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags.
     *    1 - `_.bind`
     *    2 - `_.bindKey`
     *    4 - `_.curry` or `_.curryRight` of a bound function
     *    8 - `_.curry`
     *   16 - `_.curryRight`
     *   32 - `_.partial`
     *   64 - `_.partialRight`
     *  128 - `_.rearg`
     *  256 - `_.ary`
     *  512 - `_.flip`
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to be partially applied.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
      if (!isBindKey && typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = partials ? partials.length : 0;
      if (!length) {
        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
        partials = holders = undefined;
      }
      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
      arity = arity === undefined ? arity : toInteger(arity);
      length -= holders ? holders.length : 0;

      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
        var partialsRight = partials,
            holdersRight = holders;

        partials = holders = undefined;
      }
      var data = isBindKey ? undefined : getData(func);

      var newData = [
        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
        argPos, ary, arity
      ];

      if (data) {
        mergeData(newData, data);
      }
      func = newData[0];
      bitmask = newData[1];
      thisArg = newData[2];
      partials = newData[3];
      holders = newData[4];
      arity = newData[9] = newData[9] === undefined
        ? (isBindKey ? 0 : func.length)
        : nativeMax(newData[9] - length, 0);

      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
      }
      if (!bitmask || bitmask == WRAP_BIND_FLAG) {
        var result = createBind(func, bitmask, thisArg);
      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
        result = createCurry(func, bitmask, arity);
      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
        result = createPartial(func, bitmask, thisArg, partials);
      } else {
        result = createHybrid.apply(undefined, newData);
      }
      var setter = data ? baseSetData : setData;
      return setWrapToString(setter(result, newData), func, bitmask);
    }

    /**
     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
     * of source objects to the destination object for all destination properties
     * that resolve to `undefined`.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to assign.
     * @param {Object} object The parent object of `objValue`.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsAssignIn(objValue, srcValue, key, object) {
      if (objValue === undefined ||
          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
        return srcValue;
      }
      return objValue;
    }

    /**
     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
     * objects into destination objects that are passed thru.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to merge.
     * @param {Object} object The parent object of `objValue`.
     * @param {Object} source The parent object of `srcValue`.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
      if (isObject(objValue) && isObject(srcValue)) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, objValue);
        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
        stack['delete'](srcValue);
      }
      return objValue;
    }

    /**
     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
     * objects.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {string} key The key of the property to inspect.
     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
     */
    function customOmitClone(value) {
      return isPlainObject(value) ? undefined : value;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for arrays with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Array} array The array to compare.
     * @param {Array} other The other array to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `array` and `other` objects.
     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
     */
    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          arrLength = array.length,
          othLength = other.length;

      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
        return false;
      }
      // Assume cyclic values are equal.
      var stacked = stack.get(array);
      if (stacked && stack.get(other)) {
        return stacked == other;
      }
      var index = -1,
          result = true,
          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;

      stack.set(array, other);
      stack.set(other, array);

      // Ignore non-index properties.
      while (++index < arrLength) {
        var arrValue = array[index],
            othValue = other[index];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, arrValue, index, other, array, stack)
            : customizer(arrValue, othValue, index, array, other, stack);
        }
        if (compared !== undefined) {
          if (compared) {
            continue;
          }
          result = false;
          break;
        }
        // Recursively compare arrays (susceptible to call stack limits).
        if (seen) {
          if (!arraySome(other, function(othValue, othIndex) {
                if (!cacheHas(seen, othIndex) &&
                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
                  return seen.push(othIndex);
                }
              })) {
            result = false;
            break;
          }
        } else if (!(
              arrValue === othValue ||
                equalFunc(arrValue, othValue, bitmask, customizer, stack)
            )) {
          result = false;
          break;
        }
      }
      stack['delete'](array);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for comparing objects of
     * the same `toStringTag`.
     *
     * **Note:** This function only supports comparing values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {string} tag The `toStringTag` of the objects to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
      switch (tag) {
        case dataViewTag:
          if ((object.byteLength != other.byteLength) ||
              (object.byteOffset != other.byteOffset)) {
            return false;
          }
          object = object.buffer;
          other = other.buffer;

        case arrayBufferTag:
          if ((object.byteLength != other.byteLength) ||
              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
            return false;
          }
          return true;

        case boolTag:
        case dateTag:
        case numberTag:
          // Coerce booleans to `1` or `0` and dates to milliseconds.
          // Invalid dates are coerced to `NaN`.
          return eq(+object, +other);

        case errorTag:
          return object.name == other.name && object.message == other.message;

        case regexpTag:
        case stringTag:
          // Coerce regexes to strings and treat strings, primitives and objects,
          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
          // for more details.
          return object == (other + '');

        case mapTag:
          var convert = mapToArray;

        case setTag:
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
          convert || (convert = setToArray);

          if (object.size != other.size && !isPartial) {
            return false;
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(object);
          if (stacked) {
            return stacked == other;
          }
          bitmask |= COMPARE_UNORDERED_FLAG;

          // Recursively compare objects (susceptible to call stack limits).
          stack.set(object, other);
          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
          stack['delete'](object);
          return result;

        case symbolTag:
          if (symbolValueOf) {
            return symbolValueOf.call(object) == symbolValueOf.call(other);
          }
      }
      return false;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for objects with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          objProps = getAllKeys(object),
          objLength = objProps.length,
          othProps = getAllKeys(other),
          othLength = othProps.length;

      if (objLength != othLength && !isPartial) {
        return false;
      }
      var index = objLength;
      while (index--) {
        var key = objProps[index];
        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
          return false;
        }
      }
      // Assume cyclic values are equal.
      var stacked = stack.get(object);
      if (stacked && stack.get(other)) {
        return stacked == other;
      }
      var result = true;
      stack.set(object, other);
      stack.set(other, object);

      var skipCtor = isPartial;
      while (++index < objLength) {
        key = objProps[index];
        var objValue = object[key],
            othValue = other[key];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, objValue, key, other, object, stack)
            : customizer(objValue, othValue, key, object, other, stack);
        }
        // Recursively compare objects (susceptible to call stack limits).
        if (!(compared === undefined
              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
              : compared
            )) {
          result = false;
          break;
        }
        skipCtor || (skipCtor = key == 'constructor');
      }
      if (result && !skipCtor) {
        var objCtor = object.constructor,
            othCtor = other.constructor;

        // Non `Object` object instances with different constructors are not equal.
        if (objCtor != othCtor &&
            ('constructor' in object && 'constructor' in other) &&
            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
          result = false;
        }
      }
      stack['delete'](object);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseRest` which flattens the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    function flatRest(func) {
      return setToString(overRest(func, undefined, flatten), func + '');
    }

    /**
     * Creates an array of own enumerable property names and symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeys(object) {
      return baseGetAllKeys(object, keys, getSymbols);
    }

    /**
     * Creates an array of own and inherited enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeysIn(object) {
      return baseGetAllKeys(object, keysIn, getSymbolsIn);
    }

    /**
     * Gets metadata for `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {*} Returns the metadata for `func`.
     */
    var getData = !metaMap ? noop : function(func) {
      return metaMap.get(func);
    };

    /**
     * Gets the name of `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {string} Returns the function name.
     */
    function getFuncName(func) {
      var result = (func.name + ''),
          array = realNames[result],
          length = hasOwnProperty.call(realNames, result) ? array.length : 0;

      while (length--) {
        var data = array[length],
            otherFunc = data.func;
        if (otherFunc == null || otherFunc == func) {
          return data.name;
        }
      }
      return result;
    }

    /**
     * Gets the argument placeholder value for `func`.
     *
     * @private
     * @param {Function} func The function to inspect.
     * @returns {*} Returns the placeholder value.
     */
    function getHolder(func) {
      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
      return object.placeholder;
    }

    /**
     * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
     * this function returns the custom method, otherwise it returns `baseIteratee`.
     * If arguments are provided, the chosen function is invoked with them and
     * its result is returned.
     *
     * @private
     * @param {*} [value] The value to convert to an iteratee.
     * @param {number} [arity] The arity of the created iteratee.
     * @returns {Function} Returns the chosen function or its result.
     */
    function getIteratee() {
      var result = lodash.iteratee || iteratee;
      result = result === iteratee ? baseIteratee : result;
      return arguments.length ? result(arguments[0], arguments[1]) : result;
    }

    /**
     * Gets the data for `map`.
     *
     * @private
     * @param {Object} map The map to query.
     * @param {string} key The reference key.
     * @returns {*} Returns the map data.
     */
    function getMapData(map, key) {
      var data = map.__data__;
      return isKeyable(key)
        ? data[typeof key == 'string' ? 'string' : 'hash']
        : data.map;
    }

    /**
     * Gets the property names, values, and compare flags of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the match data of `object`.
     */
    function getMatchData(object) {
      var result = keys(object),
          length = result.length;

      while (length--) {
        var key = result[length],
            value = object[key];

        result[length] = [key, value, isStrictComparable(value)];
      }
      return result;
    }

    /**
     * Gets the native function at `key` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the method to get.
     * @returns {*} Returns the function if it's native, else `undefined`.
     */
    function getNative(object, key) {
      var value = getValue(object, key);
      return baseIsNative(value) ? value : undefined;
    }

    /**
     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the raw `toStringTag`.
     */
    function getRawTag(value) {
      var isOwn = hasOwnProperty.call(value, symToStringTag),
          tag = value[symToStringTag];

      try {
        value[symToStringTag] = undefined;
        var unmasked = true;
      } catch (e) {}

      var result = nativeObjectToString.call(value);
      if (unmasked) {
        if (isOwn) {
          value[symToStringTag] = tag;
        } else {
          delete value[symToStringTag];
        }
      }
      return result;
    }

    /**
     * Creates an array of the own enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
      if (object == null) {
        return [];
      }
      object = Object(object);
      return arrayFilter(nativeGetSymbols(object), function(symbol) {
        return propertyIsEnumerable.call(object, symbol);
      });
    };

    /**
     * Creates an array of the own and inherited enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
      var result = [];
      while (object) {
        arrayPush(result, getSymbols(object));
        object = getPrototype(object);
      }
      return result;
    };

    /**
     * Gets the `toStringTag` of `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    var getTag = baseGetTag;

    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
        (Map && getTag(new Map) != mapTag) ||
        (Promise && getTag(Promise.resolve()) != promiseTag) ||
        (Set && getTag(new Set) != setTag) ||
        (WeakMap && getTag(new WeakMap) != weakMapTag)) {
      getTag = function(value) {
        var result = baseGetTag(value),
            Ctor = result == objectTag ? value.constructor : undefined,
            ctorString = Ctor ? toSource(Ctor) : '';

        if (ctorString) {
          switch (ctorString) {
            case dataViewCtorString: return dataViewTag;
            case mapCtorString: return mapTag;
            case promiseCtorString: return promiseTag;
            case setCtorString: return setTag;
            case weakMapCtorString: return weakMapTag;
          }
        }
        return result;
      };
    }

    /**
     * Gets the view, applying any `transforms` to the `start` and `end` positions.
     *
     * @private
     * @param {number} start The start of the view.
     * @param {number} end The end of the view.
     * @param {Array} transforms The transformations to apply to the view.
     * @returns {Object} Returns an object containing the `start` and `end`
     *  positions of the view.
     */
    function getView(start, end, transforms) {
      var index = -1,
          length = transforms.length;

      while (++index < length) {
        var data = transforms[index],
            size = data.size;

        switch (data.type) {
          case 'drop':      start += size; break;
          case 'dropRight': end -= size; break;
          case 'take':      end = nativeMin(end, start + size); break;
          case 'takeRight': start = nativeMax(start, end - size); break;
        }
      }
      return { 'start': start, 'end': end };
    }

    /**
     * Extracts wrapper details from the `source` body comment.
     *
     * @private
     * @param {string} source The source to inspect.
     * @returns {Array} Returns the wrapper details.
     */
    function getWrapDetails(source) {
      var match = source.match(reWrapDetails);
      return match ? match[1].split(reSplitDetails) : [];
    }

    /**
     * Checks if `path` exists on `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @param {Function} hasFunc The function to check properties.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     */
    function hasPath(object, path, hasFunc) {
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          result = false;

      while (++index < length) {
        var key = toKey(path[index]);
        if (!(result = object != null && hasFunc(object, key))) {
          break;
        }
        object = object[key];
      }
      if (result || ++index != length) {
        return result;
      }
      length = object == null ? 0 : object.length;
      return !!length && isLength(length) && isIndex(key, length) &&
        (isArray(object) || isArguments(object));
    }

    /**
     * Initializes an array clone.
     *
     * @private
     * @param {Array} array The array to clone.
     * @returns {Array} Returns the initialized clone.
     */
    function initCloneArray(array) {
      var length = array.length,
          result = array.constructor(length);

      // Add properties assigned by `RegExp#exec`.
      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
        result.index = array.index;
        result.input = array.input;
      }
      return result;
    }

    /**
     * Initializes an object clone.
     *
     * @private
     * @param {Object} object The object to clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneObject(object) {
      return (typeof object.constructor == 'function' && !isPrototype(object))
        ? baseCreate(getPrototype(object))
        : {};
    }

    /**
     * Initializes an object clone based on its `toStringTag`.
     *
     * **Note:** This function only supports cloning values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {string} tag The `toStringTag` of the object to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneByTag(object, tag, cloneFunc, isDeep) {
      var Ctor = object.constructor;
      switch (tag) {
        case arrayBufferTag:
          return cloneArrayBuffer(object);

        case boolTag:
        case dateTag:
          return new Ctor(+object);

        case dataViewTag:
          return cloneDataView(object, isDeep);

        case float32Tag: case float64Tag:
        case int8Tag: case int16Tag: case int32Tag:
        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
          return cloneTypedArray(object, isDeep);

        case mapTag:
          return cloneMap(object, isDeep, cloneFunc);

        case numberTag:
        case stringTag:
          return new Ctor(object);

        case regexpTag:
          return cloneRegExp(object);

        case setTag:
          return cloneSet(object, isDeep, cloneFunc);

        case symbolTag:
          return cloneSymbol(object);
      }
    }

    /**
     * Inserts wrapper `details` in a comment at the top of the `source` body.
     *
     * @private
     * @param {string} source The source to modify.
     * @returns {Array} details The details to insert.
     * @returns {string} Returns the modified source.
     */
    function insertWrapDetails(source, details) {
      var length = details.length;
      if (!length) {
        return source;
      }
      var lastIndex = length - 1;
      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
      details = details.join(length > 2 ? ', ' : ' ');
      return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
    }

    /**
     * Checks if `value` is a flattenable `arguments` object or array.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
     */
    function isFlattenable(value) {
      return isArray(value) || isArguments(value) ||
        !!(spreadableSymbol && value && value[spreadableSymbol]);
    }

    /**
     * Checks if `value` is a valid array-like index.
     *
     * @private
     * @param {*} value The value to check.
     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
     */
    function isIndex(value, length) {
      length = length == null ? MAX_SAFE_INTEGER : length;
      return !!length &&
        (typeof value == 'number' || reIsUint.test(value)) &&
        (value > -1 && value % 1 == 0 && value < length);
    }

    /**
     * Checks if the given arguments are from an iteratee call.
     *
     * @private
     * @param {*} value The potential iteratee value argument.
     * @param {*} index The potential iteratee index or key argument.
     * @param {*} object The potential iteratee object argument.
     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
     *  else `false`.
     */
    function isIterateeCall(value, index, object) {
      if (!isObject(object)) {
        return false;
      }
      var type = typeof index;
      if (type == 'number'
            ? (isArrayLike(object) && isIndex(index, object.length))
            : (type == 'string' && index in object)
          ) {
        return eq(object[index], value);
      }
      return false;
    }

    /**
     * Checks if `value` is a property name and not a property path.
     *
     * @private
     * @param {*} value The value to check.
     * @param {Object} [object] The object to query keys on.
     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
     */
    function isKey(value, object) {
      if (isArray(value)) {
        return false;
      }
      var type = typeof value;
      if (type == 'number' || type == 'symbol' || type == 'boolean' ||
          value == null || isSymbol(value)) {
        return true;
      }
      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
        (object != null && value in Object(object));
    }

    /**
     * Checks if `value` is suitable for use as unique object key.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
     */
    function isKeyable(value) {
      var type = typeof value;
      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
        ? (value !== '__proto__')
        : (value === null);
    }

    /**
     * Checks if `func` has a lazy counterpart.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
     *  else `false`.
     */
    function isLaziable(func) {
      var funcName = getFuncName(func),
          other = lodash[funcName];

      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
        return false;
      }
      if (func === other) {
        return true;
      }
      var data = getData(other);
      return !!data && func === data[0];
    }

    /**
     * Checks if `func` has its source masked.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` is masked, else `false`.
     */
    function isMasked(func) {
      return !!maskSrcKey && (maskSrcKey in func);
    }

    /**
     * Checks if `func` is capable of being masked.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
     */
    var isMaskable = coreJsData ? isFunction : stubFalse;

    /**
     * Checks if `value` is likely a prototype object.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
     */
    function isPrototype(value) {
      var Ctor = value && value.constructor,
          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;

      return value === proto;
    }

    /**
     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` if suitable for strict
     *  equality comparisons, else `false`.
     */
    function isStrictComparable(value) {
      return value === value && !isObject(value);
    }

    /**
     * A specialized version of `matchesProperty` for source values suitable
     * for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {string} key The key of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function matchesStrictComparable(key, srcValue) {
      return function(object) {
        if (object == null) {
          return false;
        }
        return object[key] === srcValue &&
          (srcValue !== undefined || (key in Object(object)));
      };
    }

    /**
     * A specialized version of `_.memoize` which clears the memoized function's
     * cache when it exceeds `MAX_MEMOIZE_SIZE`.
     *
     * @private
     * @param {Function} func The function to have its output memoized.
     * @returns {Function} Returns the new memoized function.
     */
    function memoizeCapped(func) {
      var result = memoize(func, function(key) {
        if (cache.size === MAX_MEMOIZE_SIZE) {
          cache.clear();
        }
        return key;
      });

      var cache = result.cache;
      return result;
    }

    /**
     * Merges the function metadata of `source` into `data`.
     *
     * Merging metadata reduces the number of wrappers used to invoke a function.
     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
     * may be applied regardless of execution order. Methods like `_.ary` and
     * `_.rearg` modify function arguments, making the order in which they are
     * executed important, preventing the merging of metadata. However, we make
     * an exception for a safe combined case where curried functions have `_.ary`
     * and or `_.rearg` applied.
     *
     * @private
     * @param {Array} data The destination metadata.
     * @param {Array} source The source metadata.
     * @returns {Array} Returns `data`.
     */
    function mergeData(data, source) {
      var bitmask = data[1],
          srcBitmask = source[1],
          newBitmask = bitmask | srcBitmask,
          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);

      var isCombo =
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));

      // Exit early if metadata can't be merged.
      if (!(isCommon || isCombo)) {
        return data;
      }
      // Use source `thisArg` if available.
      if (srcBitmask & WRAP_BIND_FLAG) {
        data[2] = source[2];
        // Set when currying a bound function.
        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
      }
      // Compose partial arguments.
      var value = source[3];
      if (value) {
        var partials = data[3];
        data[3] = partials ? composeArgs(partials, value, source[4]) : value;
        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
      }
      // Compose partial right arguments.
      value = source[5];
      if (value) {
        partials = data[5];
        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
      }
      // Use source `argPos` if available.
      value = source[7];
      if (value) {
        data[7] = value;
      }
      // Use source `ary` if it's smaller.
      if (srcBitmask & WRAP_ARY_FLAG) {
        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
      }
      // Use source `arity` if one is not provided.
      if (data[9] == null) {
        data[9] = source[9];
      }
      // Use source `func` and merge bitmasks.
      data[0] = source[0];
      data[1] = newBitmask;

      return data;
    }

    /**
     * This function is like
     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * except that it includes inherited enumerable properties.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function nativeKeysIn(object) {
      var result = [];
      if (object != null) {
        for (var key in Object(object)) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * Converts `value` to a string using `Object.prototype.toString`.
     *
     * @private
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     */
    function objectToString(value) {
      return nativeObjectToString.call(value);
    }

    /**
     * A specialized version of `baseRest` which transforms the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @param {Function} transform The rest array transform.
     * @returns {Function} Returns the new function.
     */
    function overRest(func, start, transform) {
      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
      return function() {
        var args = arguments,
            index = -1,
            length = nativeMax(args.length - start, 0),
            array = Array(length);

        while (++index < length) {
          array[index] = args[start + index];
        }
        index = -1;
        var otherArgs = Array(start + 1);
        while (++index < start) {
          otherArgs[index] = args[index];
        }
        otherArgs[start] = transform(array);
        return apply(func, this, otherArgs);
      };
    }

    /**
     * Gets the parent value at `path` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} path The path to get the parent value of.
     * @returns {*} Returns the parent value.
     */
    function parent(object, path) {
      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
    }

    /**
     * Reorder `array` according to the specified indexes where the element at
     * the first index is assigned as the first element, the element at
     * the second index is assigned as the second element, and so on.
     *
     * @private
     * @param {Array} array The array to reorder.
     * @param {Array} indexes The arranged array indexes.
     * @returns {Array} Returns `array`.
     */
    function reorder(array, indexes) {
      var arrLength = array.length,
          length = nativeMin(indexes.length, arrLength),
          oldArray = copyArray(array);

      while (length--) {
        var index = indexes[length];
        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
      }
      return array;
    }

    /**
     * Sets metadata for `func`.
     *
     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
     * period of time, it will trip its breaker and transition to an identity
     * function to avoid garbage collection pauses in V8. See
     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
     * for more details.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var setData = shortOut(baseSetData);

    /**
     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    var setTimeout = ctxSetTimeout || function(func, wait) {
      return root.setTimeout(func, wait);
    };

    /**
     * Sets the `toString` method of `func` to return `string`.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var setToString = shortOut(baseSetToString);

    /**
     * Sets the `toString` method of `wrapper` to mimic the source of `reference`
     * with wrapper details in a comment at the top of the source body.
     *
     * @private
     * @param {Function} wrapper The function to modify.
     * @param {Function} reference The reference function.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Function} Returns `wrapper`.
     */
    function setWrapToString(wrapper, reference, bitmask) {
      var source = (reference + '');
      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
    }

    /**
     * Creates a function that'll short out and invoke `identity` instead
     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
     * milliseconds.
     *
     * @private
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new shortable function.
     */
    function shortOut(func) {
      var count = 0,
          lastCalled = 0;

      return function() {
        var stamp = nativeNow(),
            remaining = HOT_SPAN - (stamp - lastCalled);

        lastCalled = stamp;
        if (remaining > 0) {
          if (++count >= HOT_COUNT) {
            return arguments[0];
          }
        } else {
          count = 0;
        }
        return func.apply(undefined, arguments);
      };
    }

    /**
     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @param {number} [size=array.length] The size of `array`.
     * @returns {Array} Returns `array`.
     */
    function shuffleSelf(array, size) {
      var index = -1,
          length = array.length,
          lastIndex = length - 1;

      size = size === undefined ? length : size;
      while (++index < size) {
        var rand = baseRandom(index, lastIndex),
            value = array[rand];

        array[rand] = array[index];
        array[index] = value;
      }
      array.length = size;
      return array;
    }

    /**
     * Converts `string` to a property path array.
     *
     * @private
     * @param {string} string The string to convert.
     * @returns {Array} Returns the property path array.
     */
    var stringToPath = memoizeCapped(function(string) {
      var result = [];
      if (reLeadingDot.test(string)) {
        result.push('');
      }
      string.replace(rePropName, function(match, number, quote, string) {
        result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
      });
      return result;
    });

    /**
     * Converts `value` to a string key if it's not a string or symbol.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {string|symbol} Returns the key.
     */
    function toKey(value) {
      if (typeof value == 'string' || isSymbol(value)) {
        return value;
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * Converts `func` to its source code.
     *
     * @private
     * @param {Function} func The function to convert.
     * @returns {string} Returns the source code.
     */
    function toSource(func) {
      if (func != null) {
        try {
          return funcToString.call(func);
        } catch (e) {}
        try {
          return (func + '');
        } catch (e) {}
      }
      return '';
    }

    /**
     * Updates wrapper `details` based on `bitmask` flags.
     *
     * @private
     * @returns {Array} details The details to modify.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Array} Returns `details`.
     */
    function updateWrapDetails(details, bitmask) {
      arrayEach(wrapFlags, function(pair) {
        var value = '_.' + pair[0];
        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
          details.push(value);
        }
      });
      return details.sort();
    }

    /**
     * Creates a clone of `wrapper`.
     *
     * @private
     * @param {Object} wrapper The wrapper to clone.
     * @returns {Object} Returns the cloned wrapper.
     */
    function wrapperClone(wrapper) {
      if (wrapper instanceof LazyWrapper) {
        return wrapper.clone();
      }
      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
      result.__actions__ = copyArray(wrapper.__actions__);
      result.__index__  = wrapper.__index__;
      result.__values__ = wrapper.__values__;
      return result;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements split into groups the length of `size`.
     * If `array` can't be split evenly, the final chunk will be the remaining
     * elements.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to process.
     * @param {number} [size=1] The length of each chunk
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the new array of chunks.
     * @example
     *
     * _.chunk(['a', 'b', 'c', 'd'], 2);
     * // => [['a', 'b'], ['c', 'd']]
     *
     * _.chunk(['a', 'b', 'c', 'd'], 3);
     * // => [['a', 'b', 'c'], ['d']]
     */
    function chunk(array, size, guard) {
      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
        size = 1;
      } else {
        size = nativeMax(toInteger(size), 0);
      }
      var length = array == null ? 0 : array.length;
      if (!length || size < 1) {
        return [];
      }
      var index = 0,
          resIndex = 0,
          result = Array(nativeCeil(length / size));

      while (index < length) {
        result[resIndex++] = baseSlice(array, index, (index += size));
      }
      return result;
    }

    /**
     * Creates an array with all falsey values removed. The values `false`, `null`,
     * `0`, `""`, `undefined`, and `NaN` are falsey.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to compact.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.compact([0, 1, false, 2, '', 3]);
     * // => [1, 2, 3]
     */
    function compact(array) {
      var index = -1,
          length = array == null ? 0 : array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (value) {
          result[resIndex++] = value;
        }
      }
      return result;
    }

    /**
     * Creates a new array concatenating `array` with any additional arrays
     * and/or values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to concatenate.
     * @param {...*} [values] The values to concatenate.
     * @returns {Array} Returns the new concatenated array.
     * @example
     *
     * var array = [1];
     * var other = _.concat(array, 2, [3], [[4]]);
     *
     * console.log(other);
     * // => [1, 2, 3, [4]]
     *
     * console.log(array);
     * // => [1]
     */
    function concat() {
      var length = arguments.length;
      if (!length) {
        return [];
      }
      var args = Array(length - 1),
          array = arguments[0],
          index = length;

      while (index--) {
        args[index - 1] = arguments[index];
      }
      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
    }

    /**
     * Creates an array of `array` values not included in the other given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * **Note:** Unlike `_.pullAll`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.without, _.xor
     * @example
     *
     * _.difference([2, 1], [2, 3]);
     * // => [1]
     */
    var difference = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `iteratee` which
     * is invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var differenceBy = baseRest(function(array, values) {
      var iteratee = last(values);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `comparator`
     * which is invoked to compare elements of `array` to `values`. The order and
     * references of result values are determined by the first array. The comparator
     * is invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     *
     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }]
     */
    var differenceWith = baseRest(function(array, values) {
      var comparator = last(values);
      if (isArrayLikeObject(comparator)) {
        comparator = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
        : [];
    });

    /**
     * Creates a slice of `array` with `n` elements dropped from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.drop([1, 2, 3]);
     * // => [2, 3]
     *
     * _.drop([1, 2, 3], 2);
     * // => [3]
     *
     * _.drop([1, 2, 3], 5);
     * // => []
     *
     * _.drop([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function drop(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with `n` elements dropped from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRight([1, 2, 3]);
     * // => [1, 2]
     *
     * _.dropRight([1, 2, 3], 2);
     * // => [1]
     *
     * _.dropRight([1, 2, 3], 5);
     * // => []
     *
     * _.dropRight([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function dropRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the end.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.dropRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropRightWhile(users, ['active', false]);
     * // => objects for ['barney']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropRightWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true, true)
        : [];
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the beginning.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.dropWhile(users, function(o) { return !o.active; });
     * // => objects for ['pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropWhile(users, ['active', false]);
     * // => objects for ['pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true)
        : [];
    }

    /**
     * Fills elements of `array` with `value` from `start` up to, but not
     * including, `end`.
     *
     * **Note:** This method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Array
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.fill(array, 'a');
     * console.log(array);
     * // => ['a', 'a', 'a']
     *
     * _.fill(Array(3), 2);
     * // => [2, 2, 2]
     *
     * _.fill([4, 6, 8, 10], '*', 1, 3);
     * // => [4, '*', '*', 10]
     */
    function fill(array, value, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
        start = 0;
        end = length;
      }
      return baseFill(array, value, start, end);
    }

    /**
     * This method is like `_.find` except that it returns the index of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.findIndex(users, function(o) { return o.user == 'barney'; });
     * // => 0
     *
     * // The `_.matches` iteratee shorthand.
     * _.findIndex(users, { 'user': 'fred', 'active': false });
     * // => 1
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findIndex(users, ['active', false]);
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.findIndex(users, 'active');
     * // => 2
     */
    function findIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index);
    }

    /**
     * This method is like `_.findIndex` except that it iterates over elements
     * of `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
     * // => 2
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
     * // => 0
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastIndex(users, ['active', false]);
     * // => 2
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastIndex(users, 'active');
     * // => 0
     */
    function findLastIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length - 1;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = fromIndex < 0
          ? nativeMax(length + index, 0)
          : nativeMin(index, length - 1);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index, true);
    }

    /**
     * Flattens `array` a single level deep.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flatten([1, [2, [3, [4]], 5]]);
     * // => [1, 2, [3, [4]], 5]
     */
    function flatten(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, 1) : [];
    }

    /**
     * Recursively flattens `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flattenDeep([1, [2, [3, [4]], 5]]);
     * // => [1, 2, 3, 4, 5]
     */
    function flattenDeep(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, INFINITY) : [];
    }

    /**
     * Recursively flatten `array` up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * var array = [1, [2, [3, [4]], 5]];
     *
     * _.flattenDepth(array, 1);
     * // => [1, 2, [3, [4]], 5]
     *
     * _.flattenDepth(array, 2);
     * // => [1, 2, 3, [4], 5]
     */
    function flattenDepth(array, depth) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(array, depth);
    }

    /**
     * The inverse of `_.toPairs`; this method returns an object composed
     * from key-value `pairs`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} pairs The key-value pairs.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.fromPairs([['a', 1], ['b', 2]]);
     * // => { 'a': 1, 'b': 2 }
     */
    function fromPairs(pairs) {
      var index = -1,
          length = pairs == null ? 0 : pairs.length,
          result = {};

      while (++index < length) {
        var pair = pairs[index];
        result[pair[0]] = pair[1];
      }
      return result;
    }

    /**
     * Gets the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias first
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the first element of `array`.
     * @example
     *
     * _.head([1, 2, 3]);
     * // => 1
     *
     * _.head([]);
     * // => undefined
     */
    function head(array) {
      return (array && array.length) ? array[0] : undefined;
    }

    /**
     * Gets the index at which the first occurrence of `value` is found in `array`
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it's used as the
     * offset from the end of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.indexOf([1, 2, 1, 2], 2);
     * // => 1
     *
     * // Search from the `fromIndex`.
     * _.indexOf([1, 2, 1, 2], 2, 2);
     * // => 3
     */
    function indexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseIndexOf(array, value, index);
    }

    /**
     * Gets all but the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.initial([1, 2, 3]);
     * // => [1, 2]
     */
    function initial(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 0, -1) : [];
    }

    /**
     * Creates an array of unique values that are included in all given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersection([2, 1], [2, 3]);
     * // => [2]
     */
    var intersection = baseRest(function(arrays) {
      var mapped = arrayMap(arrays, castArrayLikeObject);
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped)
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `iteratee`
     * which is invoked for each element of each `arrays` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [2.1]
     *
     * // The `_.property` iteratee shorthand.
     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }]
     */
    var intersectionBy = baseRest(function(arrays) {
      var iteratee = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      if (iteratee === last(mapped)) {
        iteratee = undefined;
      } else {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `comparator`
     * which is invoked to compare elements of `arrays`. The order and references
     * of result values are determined by the first array. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.intersectionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }]
     */
    var intersectionWith = baseRest(function(arrays) {
      var comparator = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      comparator = typeof comparator == 'function' ? comparator : undefined;
      if (comparator) {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, undefined, comparator)
        : [];
    });

    /**
     * Converts all elements in `array` into a string separated by `separator`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to convert.
     * @param {string} [separator=','] The element separator.
     * @returns {string} Returns the joined string.
     * @example
     *
     * _.join(['a', 'b', 'c'], '~');
     * // => 'a~b~c'
     */
    function join(array, separator) {
      return array == null ? '' : nativeJoin.call(array, separator);
    }

    /**
     * Gets the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the last element of `array`.
     * @example
     *
     * _.last([1, 2, 3]);
     * // => 3
     */
    function last(array) {
      var length = array == null ? 0 : array.length;
      return length ? array[length - 1] : undefined;
    }

    /**
     * This method is like `_.indexOf` except that it iterates over elements of
     * `array` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.lastIndexOf([1, 2, 1, 2], 2);
     * // => 3
     *
     * // Search from the `fromIndex`.
     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
     * // => 1
     */
    function lastIndexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
      }
      return value === value
        ? strictLastIndexOf(array, value, index)
        : baseFindIndex(array, baseIsNaN, index, true);
    }

    /**
     * Gets the element at index `n` of `array`. If `n` is negative, the nth
     * element from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.11.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=0] The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     *
     * _.nth(array, 1);
     * // => 'b'
     *
     * _.nth(array, -2);
     * // => 'c';
     */
    function nth(array, n) {
      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
    }

    /**
     * Removes all given values from `array` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
     * to remove elements from an array by predicate.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...*} [values] The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pull(array, 'a', 'c');
     * console.log(array);
     * // => ['b', 'b']
     */
    var pull = baseRest(pullAll);

    /**
     * This method is like `_.pull` except that it accepts an array of values to remove.
     *
     * **Note:** Unlike `_.difference`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pullAll(array, ['a', 'c']);
     * console.log(array);
     * // => ['b', 'b']
     */
    function pullAll(array, values) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values)
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `iteratee` which is
     * invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The iteratee is invoked with one argument: (value).
     *
     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
     *
     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
     * console.log(array);
     * // => [{ 'x': 2 }]
     */
    function pullAllBy(array, values, iteratee) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, getIteratee(iteratee, 2))
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `comparator` which
     * is invoked to compare elements of `array` to `values`. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
     *
     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
     * console.log(array);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
     */
    function pullAllWith(array, values, comparator) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, undefined, comparator)
        : array;
    }

    /**
     * Removes elements from `array` corresponding to `indexes` and returns an
     * array of removed elements.
     *
     * **Note:** Unlike `_.at`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...(number|number[])} [indexes] The indexes of elements to remove.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     * var pulled = _.pullAt(array, [1, 3]);
     *
     * console.log(array);
     * // => ['a', 'c']
     *
     * console.log(pulled);
     * // => ['b', 'd']
     */
    var pullAt = flatRest(function(array, indexes) {
      var length = array == null ? 0 : array.length,
          result = baseAt(array, indexes);

      basePullAt(array, arrayMap(indexes, function(index) {
        return isIndex(index, length) ? +index : index;
      }).sort(compareAscending));

      return result;
    });

    /**
     * Removes all elements from `array` that `predicate` returns truthy for
     * and returns an array of the removed elements. The predicate is invoked
     * with three arguments: (value, index, array).
     *
     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
     * to pull elements from an array by value.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [1, 2, 3, 4];
     * var evens = _.remove(array, function(n) {
     *   return n % 2 == 0;
     * });
     *
     * console.log(array);
     * // => [1, 3]
     *
     * console.log(evens);
     * // => [2, 4]
     */
    function remove(array, predicate) {
      var result = [];
      if (!(array && array.length)) {
        return result;
      }
      var index = -1,
          indexes = [],
          length = array.length;

      predicate = getIteratee(predicate, 3);
      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result.push(value);
          indexes.push(index);
        }
      }
      basePullAt(array, indexes);
      return result;
    }

    /**
     * Reverses `array` so that the first element becomes the last, the second
     * element becomes the second to last, and so on.
     *
     * **Note:** This method mutates `array` and is based on
     * [`Array#reverse`](https://mdn.io/Array/reverse).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.reverse(array);
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function reverse(array) {
      return array == null ? array : nativeReverse.call(array);
    }

    /**
     * Creates a slice of `array` from `start` up to, but not including, `end`.
     *
     * **Note:** This method is used instead of
     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
     * returned.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function slice(array, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
        start = 0;
        end = length;
      }
      else {
        start = start == null ? 0 : toInteger(start);
        end = end === undefined ? length : toInteger(end);
      }
      return baseSlice(array, start, end);
    }

    /**
     * Uses a binary search to determine the lowest index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedIndex([30, 50], 40);
     * // => 1
     */
    function sortedIndex(array, value) {
      return baseSortedIndex(array, value);
    }

    /**
     * This method is like `_.sortedIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
     * // => 0
     */
    function sortedIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
    }

    /**
     * This method is like `_.indexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
     * // => 1
     */
    function sortedIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value);
        if (index < length && eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.sortedIndex` except that it returns the highest
     * index at which `value` should be inserted into `array` in order to
     * maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
     * // => 4
     */
    function sortedLastIndex(array, value) {
      return baseSortedIndex(array, value, true);
    }

    /**
     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 1
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
     * // => 1
     */
    function sortedLastIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
    }

    /**
     * This method is like `_.lastIndexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
     * // => 3
     */
    function sortedLastIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value, true) - 1;
        if (eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.uniq` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniq([1, 1, 2]);
     * // => [1, 2]
     */
    function sortedUniq(array) {
      return (array && array.length)
        ? baseSortedUniq(array)
        : [];
    }

    /**
     * This method is like `_.uniqBy` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
     * // => [1.1, 2.3]
     */
    function sortedUniqBy(array, iteratee) {
      return (array && array.length)
        ? baseSortedUniq(array, getIteratee(iteratee, 2))
        : [];
    }

    /**
     * Gets all but the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.tail([1, 2, 3]);
     * // => [2, 3]
     */
    function tail(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 1, length) : [];
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.take([1, 2, 3]);
     * // => [1]
     *
     * _.take([1, 2, 3], 2);
     * // => [1, 2]
     *
     * _.take([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.take([1, 2, 3], 0);
     * // => []
     */
    function take(array, n, guard) {
      if (!(array && array.length)) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRight([1, 2, 3]);
     * // => [3]
     *
     * _.takeRight([1, 2, 3], 2);
     * // => [2, 3]
     *
     * _.takeRight([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.takeRight([1, 2, 3], 0);
     * // => []
     */
    function takeRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with elements taken from the end. Elements are
     * taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.takeRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeRightWhile(users, ['active', false]);
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeRightWhile(users, 'active');
     * // => []
     */
    function takeRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), false, true)
        : [];
    }

    /**
     * Creates a slice of `array` with elements taken from the beginning. Elements
     * are taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.takeWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeWhile(users, ['active', false]);
     * // => objects for ['barney', 'fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeWhile(users, 'active');
     * // => []
     */
    function takeWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3))
        : [];
    }

    /**
     * Creates an array of unique values, in order, from all given arrays using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.union([2], [1, 2]);
     * // => [2, 1]
     */
    var union = baseRest(function(arrays) {
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
    });

    /**
     * This method is like `_.union` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which uniqueness is computed. Result values are chosen from the first
     * array in which the value occurs. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.unionBy([2.1], [1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    var unionBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.union` except that it accepts `comparator` which
     * is invoked to compare elements of `arrays`. Result values are chosen from
     * the first array in which the value occurs. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.unionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var unionWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
    });

    /**
     * Creates a duplicate-free version of an array, using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons, in which only the first occurrence of each element
     * is kept. The order of result values is determined by the order they occur
     * in the array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniq([2, 1, 2]);
     * // => [2, 1]
     */
    function uniq(array) {
      return (array && array.length) ? baseUniq(array) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * uniqueness is computed. The order of result values is determined by the
     * order they occur in the array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    function uniqBy(array, iteratee) {
      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `comparator` which
     * is invoked to compare elements of `array`. The order of result values is
     * determined by the order they occur in the array.The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.uniqWith(objects, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
     */
    function uniqWith(array, comparator) {
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
    }

    /**
     * This method is like `_.zip` except that it accepts an array of grouped
     * elements and creates an array regrouping the elements to their pre-zip
     * configuration.
     *
     * @static
     * @memberOf _
     * @since 1.2.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     *
     * _.unzip(zipped);
     * // => [['a', 'b'], [1, 2], [true, false]]
     */
    function unzip(array) {
      if (!(array && array.length)) {
        return [];
      }
      var length = 0;
      array = arrayFilter(array, function(group) {
        if (isArrayLikeObject(group)) {
          length = nativeMax(group.length, length);
          return true;
        }
      });
      return baseTimes(length, function(index) {
        return arrayMap(array, baseProperty(index));
      });
    }

    /**
     * This method is like `_.unzip` except that it accepts `iteratee` to specify
     * how regrouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  regrouped values.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
     * // => [[1, 10, 100], [2, 20, 200]]
     *
     * _.unzipWith(zipped, _.add);
     * // => [3, 30, 300]
     */
    function unzipWith(array, iteratee) {
      if (!(array && array.length)) {
        return [];
      }
      var result = unzip(array);
      if (iteratee == null) {
        return result;
      }
      return arrayMap(result, function(group) {
        return apply(iteratee, undefined, group);
      });
    }

    /**
     * Creates an array excluding all given values using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.pull`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...*} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.xor
     * @example
     *
     * _.without([2, 1, 2, 3], 1, 2);
     * // => [3]
     */
    var without = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, values)
        : [];
    });

    /**
     * Creates an array of unique values that is the
     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
     * of the given arrays. The order of result values is determined by the order
     * they occur in the arrays.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.without
     * @example
     *
     * _.xor([2, 1], [2, 3]);
     * // => [1, 3]
     */
    var xor = baseRest(function(arrays) {
      return baseXor(arrayFilter(arrays, isArrayLikeObject));
    });

    /**
     * This method is like `_.xor` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which by which they're compared. The order of result values is determined
     * by the order they occur in the arrays. The iteratee is invoked with one
     * argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2, 3.4]
     *
     * // The `_.property` iteratee shorthand.
     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var xorBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.xor` except that it accepts `comparator` which is
     * invoked to compare elements of `arrays`. The order of result values is
     * determined by the order they occur in the arrays. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.xorWith(objects, others, _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var xorWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
    });

    /**
     * Creates an array of grouped elements, the first of which contains the
     * first elements of the given arrays, the second of which contains the
     * second elements of the given arrays, and so on.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     */
    var zip = baseRest(unzip);

    /**
     * This method is like `_.fromPairs` except that it accepts two arrays,
     * one of property identifiers and one of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 0.4.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObject(['a', 'b'], [1, 2]);
     * // => { 'a': 1, 'b': 2 }
     */
    function zipObject(props, values) {
      return baseZipObject(props || [], values || [], assignValue);
    }

    /**
     * This method is like `_.zipObject` except that it supports property paths.
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
     */
    function zipObjectDeep(props, values) {
      return baseZipObject(props || [], values || [], baseSet);
    }

    /**
     * This method is like `_.zip` except that it accepts `iteratee` to specify
     * how grouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  grouped values.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
     *   return a + b + c;
     * });
     * // => [111, 222]
     */
    var zipWith = baseRest(function(arrays) {
      var length = arrays.length,
          iteratee = length > 1 ? arrays[length - 1] : undefined;

      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
      return unzipWith(arrays, iteratee);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` wrapper instance that wraps `value` with explicit method
     * chain sequences enabled. The result of such sequences must be unwrapped
     * with `_#value`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Seq
     * @param {*} value The value to wrap.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36 },
     *   { 'user': 'fred',    'age': 40 },
     *   { 'user': 'pebbles', 'age': 1 }
     * ];
     *
     * var youngest = _
     *   .chain(users)
     *   .sortBy('age')
     *   .map(function(o) {
     *     return o.user + ' is ' + o.age;
     *   })
     *   .head()
     *   .value();
     * // => 'pebbles is 1'
     */
    function chain(value) {
      var result = lodash(value);
      result.__chain__ = true;
      return result;
    }

    /**
     * This method invokes `interceptor` and returns `value`. The interceptor
     * is invoked with one argument; (value). The purpose of this method is to
     * "tap into" a method chain sequence in order to modify intermediate results.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns `value`.
     * @example
     *
     * _([1, 2, 3])
     *  .tap(function(array) {
     *    // Mutate input array.
     *    array.pop();
     *  })
     *  .reverse()
     *  .value();
     * // => [2, 1]
     */
    function tap(value, interceptor) {
      interceptor(value);
      return value;
    }

    /**
     * This method is like `_.tap` except that it returns the result of `interceptor`.
     * The purpose of this method is to "pass thru" values replacing intermediate
     * results in a method chain sequence.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns the result of `interceptor`.
     * @example
     *
     * _('  abc  ')
     *  .chain()
     *  .trim()
     *  .thru(function(value) {
     *    return [value];
     *  })
     *  .value();
     * // => ['abc']
     */
    function thru(value, interceptor) {
      return interceptor(value);
    }

    /**
     * This method is the wrapper version of `_.at`.
     *
     * @name at
     * @memberOf _
     * @since 1.0.0
     * @category Seq
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _(object).at(['a[0].b.c', 'a[1]']).value();
     * // => [3, 4]
     */
    var wrapperAt = flatRest(function(paths) {
      var length = paths.length,
          start = length ? paths[0] : 0,
          value = this.__wrapped__,
          interceptor = function(object) { return baseAt(object, paths); };

      if (length > 1 || this.__actions__.length ||
          !(value instanceof LazyWrapper) || !isIndex(start)) {
        return this.thru(interceptor);
      }
      value = value.slice(start, +start + (length ? 1 : 0));
      value.__actions__.push({
        'func': thru,
        'args': [interceptor],
        'thisArg': undefined
      });
      return new LodashWrapper(value, this.__chain__).thru(function(array) {
        if (length && !array.length) {
          array.push(undefined);
        }
        return array;
      });
    });

    /**
     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
     *
     * @name chain
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // A sequence without explicit chaining.
     * _(users).head();
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // A sequence with explicit chaining.
     * _(users)
     *   .chain()
     *   .head()
     *   .pick('user')
     *   .value();
     * // => { 'user': 'barney' }
     */
    function wrapperChain() {
      return chain(this);
    }

    /**
     * Executes the chain sequence and returns the wrapped result.
     *
     * @name commit
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).push(3);
     *
     * console.log(array);
     * // => [1, 2]
     *
     * wrapped = wrapped.commit();
     * console.log(array);
     * // => [1, 2, 3]
     *
     * wrapped.last();
     * // => 3
     *
     * console.log(array);
     * // => [1, 2, 3]
     */
    function wrapperCommit() {
      return new LodashWrapper(this.value(), this.__chain__);
    }

    /**
     * Gets the next value on a wrapped object following the
     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
     *
     * @name next
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the next iterator value.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 1 }
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 2 }
     *
     * wrapped.next();
     * // => { 'done': true, 'value': undefined }
     */
    function wrapperNext() {
      if (this.__values__ === undefined) {
        this.__values__ = toArray(this.value());
      }
      var done = this.__index__ >= this.__values__.length,
          value = done ? undefined : this.__values__[this.__index__++];

      return { 'done': done, 'value': value };
    }

    /**
     * Enables the wrapper to be iterable.
     *
     * @name Symbol.iterator
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the wrapper object.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped[Symbol.iterator]() === wrapped;
     * // => true
     *
     * Array.from(wrapped);
     * // => [1, 2]
     */
    function wrapperToIterator() {
      return this;
    }

    /**
     * Creates a clone of the chain sequence planting `value` as the wrapped value.
     *
     * @name plant
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @param {*} value The value to plant.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2]).map(square);
     * var other = wrapped.plant([3, 4]);
     *
     * other.value();
     * // => [9, 16]
     *
     * wrapped.value();
     * // => [1, 4]
     */
    function wrapperPlant(value) {
      var result,
          parent = this;

      while (parent instanceof baseLodash) {
        var clone = wrapperClone(parent);
        clone.__index__ = 0;
        clone.__values__ = undefined;
        if (result) {
          previous.__wrapped__ = clone;
        } else {
          result = clone;
        }
        var previous = clone;
        parent = parent.__wrapped__;
      }
      previous.__wrapped__ = value;
      return result;
    }

    /**
     * This method is the wrapper version of `_.reverse`.
     *
     * **Note:** This method mutates the wrapped array.
     *
     * @name reverse
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _(array).reverse().value()
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function wrapperReverse() {
      var value = this.__wrapped__;
      if (value instanceof LazyWrapper) {
        var wrapped = value;
        if (this.__actions__.length) {
          wrapped = new LazyWrapper(this);
        }
        wrapped = wrapped.reverse();
        wrapped.__actions__.push({
          'func': thru,
          'args': [reverse],
          'thisArg': undefined
        });
        return new LodashWrapper(wrapped, this.__chain__);
      }
      return this.thru(reverse);
    }

    /**
     * Executes the chain sequence to resolve the unwrapped value.
     *
     * @name value
     * @memberOf _
     * @since 0.1.0
     * @alias toJSON, valueOf
     * @category Seq
     * @returns {*} Returns the resolved unwrapped value.
     * @example
     *
     * _([1, 2, 3]).value();
     * // => [1, 2, 3]
     */
    function wrapperValue() {
      return baseWrapperValue(this.__wrapped__, this.__actions__);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the number of times the key was returned by `iteratee`. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.countBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': 1, '6': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.countBy(['one', 'two', 'three'], 'length');
     * // => { '3': 2, '5': 1 }
     */
    var countBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        ++result[key];
      } else {
        baseAssignValue(result, key, 1);
      }
    });

    /**
     * Checks if `predicate` returns truthy for **all** elements of `collection`.
     * Iteration is stopped once `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * **Note:** This method returns `true` for
     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
     * elements of empty collections.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     * @example
     *
     * _.every([true, 1, null, 'yes'], Boolean);
     * // => false
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.every(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.every(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.every(users, 'active');
     * // => false
     */
    function every(collection, predicate, guard) {
      var func = isArray(collection) ? arrayEvery : baseEvery;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning an array of all elements
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * **Note:** Unlike `_.remove`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.reject
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.filter(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, { 'age': 36, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.filter(users, 'active');
     * // => objects for ['barney']
     */
    function filter(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning the first element
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': true },
     *   { 'user': 'fred',    'age': 40, 'active': false },
     *   { 'user': 'pebbles', 'age': 1,  'active': true }
     * ];
     *
     * _.find(users, function(o) { return o.age < 40; });
     * // => object for 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.find(users, { 'age': 1, 'active': true });
     * // => object for 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.find(users, ['active', false]);
     * // => object for 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.find(users, 'active');
     * // => object for 'barney'
     */
    var find = createFind(findIndex);

    /**
     * This method is like `_.find` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=collection.length-1] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * _.findLast([1, 2, 3, 4], function(n) {
     *   return n % 2 == 1;
     * });
     * // => 3
     */
    var findLast = createFind(findLastIndex);

    /**
     * Creates a flattened array of values by running each element in `collection`
     * thru `iteratee` and flattening the mapped results. The iteratee is invoked
     * with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [n, n];
     * }
     *
     * _.flatMap([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMap(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), 1);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDeep([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMapDeep(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), INFINITY);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDepth([1, 2], duplicate, 2);
     * // => [[1, 1], [2, 2]]
     */
    function flatMapDepth(collection, iteratee, depth) {
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(map(collection, iteratee), depth);
    }

    /**
     * Iterates over elements of `collection` and invokes `iteratee` for each element.
     * The iteratee is invoked with three arguments: (value, index|key, collection).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * **Note:** As with other "Collections" methods, objects with a "length"
     * property are iterated like arrays. To avoid this behavior use `_.forIn`
     * or `_.forOwn` for object iteration.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias each
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEachRight
     * @example
     *
     * _.forEach([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `1` then `2`.
     *
     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forEach(collection, iteratee) {
      var func = isArray(collection) ? arrayEach : baseEach;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forEach` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @alias eachRight
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEach
     * @example
     *
     * _.forEachRight([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `2` then `1`.
     */
    function forEachRight(collection, iteratee) {
      var func = isArray(collection) ? arrayEachRight : baseEachRight;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The order of grouped values
     * is determined by the order they occur in `collection`. The corresponding
     * value of each key is an array of elements responsible for generating the
     * key. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.groupBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': [4.2], '6': [6.1, 6.3] }
     *
     * // The `_.property` iteratee shorthand.
     * _.groupBy(['one', 'two', 'three'], 'length');
     * // => { '3': ['one', 'two'], '5': ['three'] }
     */
    var groupBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        result[key].push(value);
      } else {
        baseAssignValue(result, key, [value]);
      }
    });

    /**
     * Checks if `value` is in `collection`. If `collection` is a string, it's
     * checked for a substring of `value`, otherwise
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * is used for equality comparisons. If `fromIndex` is negative, it's used as
     * the offset from the end of `collection`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {boolean} Returns `true` if `value` is found, else `false`.
     * @example
     *
     * _.includes([1, 2, 3], 1);
     * // => true
     *
     * _.includes([1, 2, 3], 1, 2);
     * // => false
     *
     * _.includes({ 'a': 1, 'b': 2 }, 1);
     * // => true
     *
     * _.includes('abcd', 'bc');
     * // => true
     */
    function includes(collection, value, fromIndex, guard) {
      collection = isArrayLike(collection) ? collection : values(collection);
      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;

      var length = collection.length;
      if (fromIndex < 0) {
        fromIndex = nativeMax(length + fromIndex, 0);
      }
      return isString(collection)
        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
    }

    /**
     * Invokes the method at `path` of each element in `collection`, returning
     * an array of the results of each invoked method. Any additional arguments
     * are provided to each invoked method. If `path` is a function, it's invoked
     * for, and `this` bound to, each element in `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array|Function|string} path The path of the method to invoke or
     *  the function invoked per iteration.
     * @param {...*} [args] The arguments to invoke each method with.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
     * // => [[1, 5, 7], [1, 2, 3]]
     *
     * _.invokeMap([123, 456], String.prototype.split, '');
     * // => [['1', '2', '3'], ['4', '5', '6']]
     */
    var invokeMap = baseRest(function(collection, path, args) {
      var index = -1,
          isFunc = typeof path == 'function',
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value) {
        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
      });
      return result;
    });

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the last element responsible for generating the key. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * var array = [
     *   { 'dir': 'left', 'code': 97 },
     *   { 'dir': 'right', 'code': 100 }
     * ];
     *
     * _.keyBy(array, function(o) {
     *   return String.fromCharCode(o.code);
     * });
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     *
     * _.keyBy(array, 'dir');
     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
     */
    var keyBy = createAggregator(function(result, value, key) {
      baseAssignValue(result, key, value);
    });

    /**
     * Creates an array of values by running each element in `collection` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
     *
     * The guarded methods are:
     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * _.map([4, 8], square);
     * // => [16, 64]
     *
     * _.map({ 'a': 4, 'b': 8 }, square);
     * // => [16, 64] (iteration order is not guaranteed)
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, 'user');
     * // => ['barney', 'fred']
     */
    function map(collection, iteratee) {
      var func = isArray(collection) ? arrayMap : baseMap;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.sortBy` except that it allows specifying the sort
     * orders of the iteratees to sort by. If `orders` is unspecified, all values
     * are sorted in ascending order. Otherwise, specify an order of "desc" for
     * descending or "asc" for ascending sort order of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @param {string[]} [orders] The sort orders of `iteratees`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 34 },
     *   { 'user': 'fred',   'age': 40 },
     *   { 'user': 'barney', 'age': 36 }
     * ];
     *
     * // Sort by `user` in ascending order and by `age` in descending order.
     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
     */
    function orderBy(collection, iteratees, orders, guard) {
      if (collection == null) {
        return [];
      }
      if (!isArray(iteratees)) {
        iteratees = iteratees == null ? [] : [iteratees];
      }
      orders = guard ? undefined : orders;
      if (!isArray(orders)) {
        orders = orders == null ? [] : [orders];
      }
      return baseOrderBy(collection, iteratees, orders);
    }

    /**
     * Creates an array of elements split into two groups, the first of which
     * contains elements `predicate` returns truthy for, the second of which
     * contains elements `predicate` returns falsey for. The predicate is
     * invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of grouped elements.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': false },
     *   { 'user': 'fred',    'age': 40, 'active': true },
     *   { 'user': 'pebbles', 'age': 1,  'active': false }
     * ];
     *
     * _.partition(users, function(o) { return o.active; });
     * // => objects for [['fred'], ['barney', 'pebbles']]
     *
     * // The `_.matches` iteratee shorthand.
     * _.partition(users, { 'age': 1, 'active': false });
     * // => objects for [['pebbles'], ['barney', 'fred']]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.partition(users, ['active', false]);
     * // => objects for [['barney', 'pebbles'], ['fred']]
     *
     * // The `_.property` iteratee shorthand.
     * _.partition(users, 'active');
     * // => objects for [['fred'], ['barney', 'pebbles']]
     */
    var partition = createAggregator(function(result, value, key) {
      result[key ? 0 : 1].push(value);
    }, function() { return [[], []]; });

    /**
     * Reduces `collection` to a value which is the accumulated result of running
     * each element in `collection` thru `iteratee`, where each successive
     * invocation is supplied the return value of the previous. If `accumulator`
     * is not given, the first element of `collection` is used as the initial
     * value. The iteratee is invoked with four arguments:
     * (accumulator, value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.reduce`, `_.reduceRight`, and `_.transform`.
     *
     * The guarded methods are:
     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
     * and `sortBy`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduceRight
     * @example
     *
     * _.reduce([1, 2], function(sum, n) {
     *   return sum + n;
     * }, 0);
     * // => 3
     *
     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     *   return result;
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
     */
    function reduce(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduce : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
    }

    /**
     * This method is like `_.reduce` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduce
     * @example
     *
     * var array = [[0, 1], [2, 3], [4, 5]];
     *
     * _.reduceRight(array, function(flattened, other) {
     *   return flattened.concat(other);
     * }, []);
     * // => [4, 5, 2, 3, 0, 1]
     */
    function reduceRight(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduceRight : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
    }

    /**
     * The opposite of `_.filter`; this method returns the elements of `collection`
     * that `predicate` does **not** return truthy for.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.filter
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': true }
     * ];
     *
     * _.reject(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.reject(users, { 'age': 40, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.reject(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.reject(users, 'active');
     * // => objects for ['barney']
     */
    function reject(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, negate(getIteratee(predicate, 3)));
    }

    /**
     * Gets a random element from `collection`.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     * @example
     *
     * _.sample([1, 2, 3, 4]);
     * // => 2
     */
    function sample(collection) {
      var func = isArray(collection) ? arraySample : baseSample;
      return func(collection);
    }

    /**
     * Gets `n` random elements at unique keys from `collection` up to the
     * size of `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @param {number} [n=1] The number of elements to sample.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the random elements.
     * @example
     *
     * _.sampleSize([1, 2, 3], 2);
     * // => [3, 1]
     *
     * _.sampleSize([1, 2, 3], 4);
     * // => [2, 3, 1]
     */
    function sampleSize(collection, n, guard) {
      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      var func = isArray(collection) ? arraySampleSize : baseSampleSize;
      return func(collection, n);
    }

    /**
     * Creates an array of shuffled values, using a version of the
     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     * @example
     *
     * _.shuffle([1, 2, 3, 4]);
     * // => [4, 1, 3, 2]
     */
    function shuffle(collection) {
      var func = isArray(collection) ? arrayShuffle : baseShuffle;
      return func(collection);
    }

    /**
     * Gets the size of `collection` by returning its length for array-like
     * values or the number of own enumerable string keyed properties for objects.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @returns {number} Returns the collection size.
     * @example
     *
     * _.size([1, 2, 3]);
     * // => 3
     *
     * _.size({ 'a': 1, 'b': 2 });
     * // => 2
     *
     * _.size('pebbles');
     * // => 7
     */
    function size(collection) {
      if (collection == null) {
        return 0;
      }
      if (isArrayLike(collection)) {
        return isString(collection) ? stringSize(collection) : collection.length;
      }
      var tag = getTag(collection);
      if (tag == mapTag || tag == setTag) {
        return collection.size;
      }
      return baseKeys(collection).length;
    }

    /**
     * Checks if `predicate` returns truthy for **any** element of `collection`.
     * Iteration is stopped once `predicate` returns truthy. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     * @example
     *
     * _.some([null, 0, 'yes', false], Boolean);
     * // => true
     *
     * var users = [
     *   { 'user': 'barney', 'active': true },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.some(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.some(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.some(users, 'active');
     * // => true
     */
    function some(collection, predicate, guard) {
      var func = isArray(collection) ? arraySome : baseSome;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Creates an array of elements, sorted in ascending order by the results of
     * running each element in a collection thru each iteratee. This method
     * performs a stable sort, that is, it preserves the original sort order of
     * equal elements. The iteratees are invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 },
     *   { 'user': 'barney', 'age': 34 }
     * ];
     *
     * _.sortBy(users, [function(o) { return o.user; }]);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
     *
     * _.sortBy(users, ['user', 'age']);
     * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
     */
    var sortBy = baseRest(function(collection, iteratees) {
      if (collection == null) {
        return [];
      }
      var length = iteratees.length;
      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
        iteratees = [];
      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
        iteratees = [iteratees[0]];
      }
      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Gets the timestamp of the number of milliseconds that have elapsed since
     * the Unix epoch (1 January 1970 00:00:00 UTC).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Date
     * @returns {number} Returns the timestamp.
     * @example
     *
     * _.defer(function(stamp) {
     *   console.log(_.now() - stamp);
     * }, _.now());
     * // => Logs the number of milliseconds it took for the deferred invocation.
     */
    var now = ctxNow || function() {
      return root.Date.now();
    };

    /*------------------------------------------------------------------------*/

    /**
     * The opposite of `_.before`; this method creates a function that invokes
     * `func` once it's called `n` or more times.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {number} n The number of calls before `func` is invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var saves = ['profile', 'settings'];
     *
     * var done = _.after(saves.length, function() {
     *   console.log('done saving!');
     * });
     *
     * _.forEach(saves, function(type) {
     *   asyncSave({ 'type': type, 'complete': done });
     * });
     * // => Logs 'done saving!' after the two async saves have completed.
     */
    function after(n, func) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n < 1) {
          return func.apply(this, arguments);
        }
      };
    }

    /**
     * Creates a function that invokes `func`, with up to `n` arguments,
     * ignoring any additional arguments.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @param {number} [n=func.length] The arity cap.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
     * // => [6, 8, 10]
     */
    function ary(func, n, guard) {
      n = guard ? undefined : n;
      n = (func && n == null) ? func.length : n;
      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
    }

    /**
     * Creates a function that invokes `func`, with the `this` binding and arguments
     * of the created function, while it's called less than `n` times. Subsequent
     * calls to the created function return the result of the last `func` invocation.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {number} n The number of calls at which `func` is no longer invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * jQuery(element).on('click', _.before(5, addContactToList));
     * // => Allows adding up to 4 contacts to the list.
     */
    function before(n, func) {
      var result;
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n > 0) {
          result = func.apply(this, arguments);
        }
        if (n <= 1) {
          func = undefined;
        }
        return result;
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and `partials` prepended to the arguments it receives.
     *
     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for partially applied arguments.
     *
     * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
     * property of bound functions.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * function greet(greeting, punctuation) {
     *   return greeting + ' ' + this.user + punctuation;
     * }
     *
     * var object = { 'user': 'fred' };
     *
     * var bound = _.bind(greet, object, 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bind(greet, object, _, '!');
     * bound('hi');
     * // => 'hi fred!'
     */
    var bind = baseRest(function(func, thisArg, partials) {
      var bitmask = WRAP_BIND_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bind));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(func, bitmask, thisArg, partials, holders);
    });

    /**
     * Creates a function that invokes the method at `object[key]` with `partials`
     * prepended to the arguments it receives.
     *
     * This method differs from `_.bind` by allowing bound functions to reference
     * methods that may be redefined or don't yet exist. See
     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
     * for more details.
     *
     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Function
     * @param {Object} object The object to invoke the method on.
     * @param {string} key The key of the method.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var object = {
     *   'user': 'fred',
     *   'greet': function(greeting, punctuation) {
     *     return greeting + ' ' + this.user + punctuation;
     *   }
     * };
     *
     * var bound = _.bindKey(object, 'greet', 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * object.greet = function(greeting, punctuation) {
     *   return greeting + 'ya ' + this.user + punctuation;
     * };
     *
     * bound('!');
     * // => 'hiya fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bindKey(object, 'greet', _, '!');
     * bound('hi');
     * // => 'hiya fred!'
     */
    var bindKey = baseRest(function(object, key, partials) {
      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bindKey));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(key, bitmask, object, partials, holders);
    });

    /**
     * Creates a function that accepts arguments of `func` and either invokes
     * `func` returning its result, if at least `arity` number of arguments have
     * been provided, or returns a function that accepts the remaining `func`
     * arguments, and so on. The arity of `func` may be specified if `func.length`
     * is not sufficient.
     *
     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curry(abc);
     *
     * curried(1)(2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(1)(_, 3)(2);
     * // => [1, 2, 3]
     */
    function curry(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curry.placeholder;
      return result;
    }

    /**
     * This method is like `_.curry` except that arguments are applied to `func`
     * in the manner of `_.partialRight` instead of `_.partial`.
     *
     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curryRight(abc);
     *
     * curried(3)(2)(1);
     * // => [1, 2, 3]
     *
     * curried(2, 3)(1);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(3)(1, _)(2);
     * // => [1, 2, 3]
     */
    function curryRight(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curryRight.placeholder;
      return result;
    }

    /**
     * Creates a debounced function that delays invoking `func` until after `wait`
     * milliseconds have elapsed since the last time the debounced function was
     * invoked. The debounced function comes with a `cancel` method to cancel
     * delayed `func` invocations and a `flush` method to immediately invoke them.
     * Provide `options` to indicate whether `func` should be invoked on the
     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
     * with the last arguments provided to the debounced function. Subsequent
     * calls to the debounced function return the result of the last `func`
     * invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the debounced function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.debounce` and `_.throttle`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to debounce.
     * @param {number} [wait=0] The number of milliseconds to delay.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=false]
     *  Specify invoking on the leading edge of the timeout.
     * @param {number} [options.maxWait]
     *  The maximum time `func` is allowed to be delayed before it's invoked.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new debounced function.
     * @example
     *
     * // Avoid costly calculations while the window size is in flux.
     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
     *
     * // Invoke `sendMail` when clicked, debouncing subsequent calls.
     * jQuery(element).on('click', _.debounce(sendMail, 300, {
     *   'leading': true,
     *   'trailing': false
     * }));
     *
     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
     * var source = new EventSource('/stream');
     * jQuery(source).on('message', debounced);
     *
     * // Cancel the trailing debounced invocation.
     * jQuery(window).on('popstate', debounced.cancel);
     */
    function debounce(func, wait, options) {
      var lastArgs,
          lastThis,
          maxWait,
          result,
          timerId,
          lastCallTime,
          lastInvokeTime = 0,
          leading = false,
          maxing = false,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      wait = toNumber(wait) || 0;
      if (isObject(options)) {
        leading = !!options.leading;
        maxing = 'maxWait' in options;
        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }

      function invokeFunc(time) {
        var args = lastArgs,
            thisArg = lastThis;

        lastArgs = lastThis = undefined;
        lastInvokeTime = time;
        result = func.apply(thisArg, args);
        return result;
      }

      function leadingEdge(time) {
        // Reset any `maxWait` timer.
        lastInvokeTime = time;
        // Start the timer for the trailing edge.
        timerId = setTimeout(timerExpired, wait);
        // Invoke the leading edge.
        return leading ? invokeFunc(time) : result;
      }

      function remainingWait(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime,
            result = wait - timeSinceLastCall;

        return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
      }

      function shouldInvoke(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime;

        // Either this is the first call, activity has stopped and we're at the
        // trailing edge, the system time has gone backwards and we're treating
        // it as the trailing edge, or we've hit the `maxWait` limit.
        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
      }

      function timerExpired() {
        var time = now();
        if (shouldInvoke(time)) {
          return trailingEdge(time);
        }
        // Restart the timer.
        timerId = setTimeout(timerExpired, remainingWait(time));
      }

      function trailingEdge(time) {
        timerId = undefined;

        // Only invoke if we have `lastArgs` which means `func` has been
        // debounced at least once.
        if (trailing && lastArgs) {
          return invokeFunc(time);
        }
        lastArgs = lastThis = undefined;
        return result;
      }

      function cancel() {
        if (timerId !== undefined) {
          clearTimeout(timerId);
        }
        lastInvokeTime = 0;
        lastArgs = lastCallTime = lastThis = timerId = undefined;
      }

      function flush() {
        return timerId === undefined ? result : trailingEdge(now());
      }

      function debounced() {
        var time = now(),
            isInvoking = shouldInvoke(time);

        lastArgs = arguments;
        lastThis = this;
        lastCallTime = time;

        if (isInvoking) {
          if (timerId === undefined) {
            return leadingEdge(lastCallTime);
          }
          if (maxing) {
            // Handle invocations in a tight loop.
            timerId = setTimeout(timerExpired, wait);
            return invokeFunc(lastCallTime);
          }
        }
        if (timerId === undefined) {
          timerId = setTimeout(timerExpired, wait);
        }
        return result;
      }
      debounced.cancel = cancel;
      debounced.flush = flush;
      return debounced;
    }

    /**
     * Defers invoking the `func` until the current call stack has cleared. Any
     * additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to defer.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.defer(function(text) {
     *   console.log(text);
     * }, 'deferred');
     * // => Logs 'deferred' after one millisecond.
     */
    var defer = baseRest(function(func, args) {
      return baseDelay(func, 1, args);
    });

    /**
     * Invokes `func` after `wait` milliseconds. Any additional arguments are
     * provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.delay(function(text) {
     *   console.log(text);
     * }, 1000, 'later');
     * // => Logs 'later' after one second.
     */
    var delay = baseRest(function(func, wait, args) {
      return baseDelay(func, toNumber(wait) || 0, args);
    });

    /**
     * Creates a function that invokes `func` with arguments reversed.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to flip arguments for.
     * @returns {Function} Returns the new flipped function.
     * @example
     *
     * var flipped = _.flip(function() {
     *   return _.toArray(arguments);
     * });
     *
     * flipped('a', 'b', 'c', 'd');
     * // => ['d', 'c', 'b', 'a']
     */
    function flip(func) {
      return createWrap(func, WRAP_FLIP_FLAG);
    }

    /**
     * Creates a function that memoizes the result of `func`. If `resolver` is
     * provided, it determines the cache key for storing the result based on the
     * arguments provided to the memoized function. By default, the first argument
     * provided to the memoized function is used as the map cache key. The `func`
     * is invoked with the `this` binding of the memoized function.
     *
     * **Note:** The cache is exposed as the `cache` property on the memoized
     * function. Its creation may be customized by replacing the `_.memoize.Cache`
     * constructor with one whose instances implement the
     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
     * method interface of `clear`, `delete`, `get`, `has`, and `set`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to have its output memoized.
     * @param {Function} [resolver] The function to resolve the cache key.
     * @returns {Function} Returns the new memoized function.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     * var other = { 'c': 3, 'd': 4 };
     *
     * var values = _.memoize(_.values);
     * values(object);
     * // => [1, 2]
     *
     * values(other);
     * // => [3, 4]
     *
     * object.a = 2;
     * values(object);
     * // => [1, 2]
     *
     * // Modify the result cache.
     * values.cache.set(object, ['a', 'b']);
     * values(object);
     * // => ['a', 'b']
     *
     * // Replace `_.memoize.Cache`.
     * _.memoize.Cache = WeakMap;
     */
    function memoize(func, resolver) {
      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var memoized = function() {
        var args = arguments,
            key = resolver ? resolver.apply(this, args) : args[0],
            cache = memoized.cache;

        if (cache.has(key)) {
          return cache.get(key);
        }
        var result = func.apply(this, args);
        memoized.cache = cache.set(key, result) || cache;
        return result;
      };
      memoized.cache = new (memoize.Cache || MapCache);
      return memoized;
    }

    // Expose `MapCache`.
    memoize.Cache = MapCache;

    /**
     * Creates a function that negates the result of the predicate `func`. The
     * `func` predicate is invoked with the `this` binding and arguments of the
     * created function.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} predicate The predicate to negate.
     * @returns {Function} Returns the new negated function.
     * @example
     *
     * function isEven(n) {
     *   return n % 2 == 0;
     * }
     *
     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
     * // => [1, 3, 5]
     */
    function negate(predicate) {
      if (typeof predicate != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function() {
        var args = arguments;
        switch (args.length) {
          case 0: return !predicate.call(this);
          case 1: return !predicate.call(this, args[0]);
          case 2: return !predicate.call(this, args[0], args[1]);
          case 3: return !predicate.call(this, args[0], args[1], args[2]);
        }
        return !predicate.apply(this, args);
      };
    }

    /**
     * Creates a function that is restricted to invoking `func` once. Repeat calls
     * to the function return the value of the first invocation. The `func` is
     * invoked with the `this` binding and arguments of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var initialize = _.once(createApplication);
     * initialize();
     * initialize();
     * // => `createApplication` is invoked once
     */
    function once(func) {
      return before(2, func);
    }

    /**
     * Creates a function that invokes `func` with its arguments transformed.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Function
     * @param {Function} func The function to wrap.
     * @param {...(Function|Function[])} [transforms=[_.identity]]
     *  The argument transforms.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function doubled(n) {
     *   return n * 2;
     * }
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var func = _.overArgs(function(x, y) {
     *   return [x, y];
     * }, [square, doubled]);
     *
     * func(9, 3);
     * // => [81, 6]
     *
     * func(10, 5);
     * // => [100, 10]
     */
    var overArgs = castRest(function(func, transforms) {
      transforms = (transforms.length == 1 && isArray(transforms[0]))
        ? arrayMap(transforms[0], baseUnary(getIteratee()))
        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));

      var funcsLength = transforms.length;
      return baseRest(function(args) {
        var index = -1,
            length = nativeMin(args.length, funcsLength);

        while (++index < length) {
          args[index] = transforms[index].call(this, args[index]);
        }
        return apply(func, this, args);
      });
    });

    /**
     * Creates a function that invokes `func` with `partials` prepended to the
     * arguments it receives. This method is like `_.bind` except it does **not**
     * alter the `this` binding.
     *
     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 0.2.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var sayHelloTo = _.partial(greet, 'hello');
     * sayHelloTo('fred');
     * // => 'hello fred'
     *
     * // Partially applied with placeholders.
     * var greetFred = _.partial(greet, _, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     */
    var partial = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partial));
      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
    });

    /**
     * This method is like `_.partial` except that partially applied arguments
     * are appended to the arguments it receives.
     *
     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var greetFred = _.partialRight(greet, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     *
     * // Partially applied with placeholders.
     * var sayHelloTo = _.partialRight(greet, 'hello', _);
     * sayHelloTo('fred');
     * // => 'hello fred'
     */
    var partialRight = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partialRight));
      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
    });

    /**
     * Creates a function that invokes `func` with arguments arranged according
     * to the specified `indexes` where the argument value at the first index is
     * provided as the first argument, the argument value at the second index is
     * provided as the second argument, and so on.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to rearrange arguments for.
     * @param {...(number|number[])} indexes The arranged argument indexes.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var rearged = _.rearg(function(a, b, c) {
     *   return [a, b, c];
     * }, [2, 0, 1]);
     *
     * rearged('b', 'c', 'a')
     * // => ['a', 'b', 'c']
     */
    var rearg = flatRest(function(func, indexes) {
      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * created function and arguments from `start` and beyond provided as
     * an array.
     *
     * **Note:** This method is based on the
     * [rest parameter](https://mdn.io/rest_parameters).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.rest(function(what, names) {
     *   return what + ' ' + _.initial(names).join(', ') +
     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
     * });
     *
     * say('hello', 'fred', 'barney', 'pebbles');
     * // => 'hello fred, barney, & pebbles'
     */
    function rest(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start === undefined ? start : toInteger(start);
      return baseRest(func, start);
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * create function and an array of arguments much like
     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
     *
     * **Note:** This method is based on the
     * [spread operator](https://mdn.io/spread_operator).
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Function
     * @param {Function} func The function to spread arguments over.
     * @param {number} [start=0] The start position of the spread.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.spread(function(who, what) {
     *   return who + ' says ' + what;
     * });
     *
     * say(['fred', 'hello']);
     * // => 'fred says hello'
     *
     * var numbers = Promise.all([
     *   Promise.resolve(40),
     *   Promise.resolve(36)
     * ]);
     *
     * numbers.then(_.spread(function(x, y) {
     *   return x + y;
     * }));
     * // => a Promise of 76
     */
    function spread(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start == null ? 0 : nativeMax(toInteger(start), 0);
      return baseRest(function(args) {
        var array = args[start],
            otherArgs = castSlice(args, 0, start);

        if (array) {
          arrayPush(otherArgs, array);
        }
        return apply(func, this, otherArgs);
      });
    }

    /**
     * Creates a throttled function that only invokes `func` at most once per
     * every `wait` milliseconds. The throttled function comes with a `cancel`
     * method to cancel delayed `func` invocations and a `flush` method to
     * immediately invoke them. Provide `options` to indicate whether `func`
     * should be invoked on the leading and/or trailing edge of the `wait`
     * timeout. The `func` is invoked with the last arguments provided to the
     * throttled function. Subsequent calls to the throttled function return the
     * result of the last `func` invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the throttled function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.throttle` and `_.debounce`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to throttle.
     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=true]
     *  Specify invoking on the leading edge of the timeout.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new throttled function.
     * @example
     *
     * // Avoid excessively updating the position while scrolling.
     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
     *
     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
     * jQuery(element).on('click', throttled);
     *
     * // Cancel the trailing throttled invocation.
     * jQuery(window).on('popstate', throttled.cancel);
     */
    function throttle(func, wait, options) {
      var leading = true,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }
      return debounce(func, wait, {
        'leading': leading,
        'maxWait': wait,
        'trailing': trailing
      });
    }

    /**
     * Creates a function that accepts up to one argument, ignoring any
     * additional arguments.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.unary(parseInt));
     * // => [6, 8, 10]
     */
    function unary(func) {
      return ary(func, 1);
    }

    /**
     * Creates a function that provides `value` to `wrapper` as its first
     * argument. Any additional arguments provided to the function are appended
     * to those provided to the `wrapper`. The wrapper is invoked with the `this`
     * binding of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {*} value The value to wrap.
     * @param {Function} [wrapper=identity] The wrapper function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var p = _.wrap(_.escape, function(func, text) {
     *   return '<p>' + func(text) + '</p>';
     * });
     *
     * p('fred, barney, & pebbles');
     * // => '<p>fred, barney, &amp; pebbles</p>'
     */
    function wrap(value, wrapper) {
      return partial(castFunction(wrapper), value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Casts `value` as an array if it's not one.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Lang
     * @param {*} value The value to inspect.
     * @returns {Array} Returns the cast array.
     * @example
     *
     * _.castArray(1);
     * // => [1]
     *
     * _.castArray({ 'a': 1 });
     * // => [{ 'a': 1 }]
     *
     * _.castArray('abc');
     * // => ['abc']
     *
     * _.castArray(null);
     * // => [null]
     *
     * _.castArray(undefined);
     * // => [undefined]
     *
     * _.castArray();
     * // => []
     *
     * var array = [1, 2, 3];
     * console.log(_.castArray(array) === array);
     * // => true
     */
    function castArray() {
      if (!arguments.length) {
        return [];
      }
      var value = arguments[0];
      return isArray(value) ? value : [value];
    }

    /**
     * Creates a shallow clone of `value`.
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
     * and supports cloning arrays, array buffers, booleans, date objects, maps,
     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
     * arrays. The own enumerable properties of `arguments` objects are cloned
     * as plain objects. An empty object is returned for uncloneable values such
     * as error objects, functions, DOM nodes, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to clone.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeep
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var shallow = _.clone(objects);
     * console.log(shallow[0] === objects[0]);
     * // => true
     */
    function clone(value) {
      return baseClone(value, CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.clone` except that it accepts `customizer` which
     * is invoked to produce the cloned value. If `customizer` returns `undefined`,
     * cloning is handled by the method instead. The `customizer` is invoked with
     * up to four arguments; (value [, index|key, object, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeepWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(false);
     *   }
     * }
     *
     * var el = _.cloneWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 0
     */
    function cloneWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * This method is like `_.clone` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @returns {*} Returns the deep cloned value.
     * @see _.clone
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var deep = _.cloneDeep(objects);
     * console.log(deep[0] === objects[0]);
     * // => false
     */
    function cloneDeep(value) {
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.cloneWith` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the deep cloned value.
     * @see _.cloneWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(true);
     *   }
     * }
     *
     * var el = _.cloneDeepWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 20
     */
    function cloneDeepWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * Checks if `object` conforms to `source` by invoking the predicate
     * properties of `source` with the corresponding property values of `object`.
     *
     * **Note:** This method is equivalent to `_.conforms` when `source` is
     * partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
     * // => true
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
     * // => false
     */
    function conformsTo(object, source) {
      return source == null || baseConformsTo(object, source, keys(source));
    }

    /**
     * Performs a
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * comparison between two values to determine if they are equivalent.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.eq(object, object);
     * // => true
     *
     * _.eq(object, other);
     * // => false
     *
     * _.eq('a', 'a');
     * // => true
     *
     * _.eq('a', Object('a'));
     * // => false
     *
     * _.eq(NaN, NaN);
     * // => true
     */
    function eq(value, other) {
      return value === other || (value !== value && other !== other);
    }

    /**
     * Checks if `value` is greater than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     * @see _.lt
     * @example
     *
     * _.gt(3, 1);
     * // => true
     *
     * _.gt(3, 3);
     * // => false
     *
     * _.gt(1, 3);
     * // => false
     */
    var gt = createRelationalOperation(baseGt);

    /**
     * Checks if `value` is greater than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than or equal to
     *  `other`, else `false`.
     * @see _.lte
     * @example
     *
     * _.gte(3, 1);
     * // => true
     *
     * _.gte(3, 3);
     * // => true
     *
     * _.gte(1, 3);
     * // => false
     */
    var gte = createRelationalOperation(function(value, other) {
      return value >= other;
    });

    /**
     * Checks if `value` is likely an `arguments` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     *  else `false`.
     * @example
     *
     * _.isArguments(function() { return arguments; }());
     * // => true
     *
     * _.isArguments([1, 2, 3]);
     * // => false
     */
    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
        !propertyIsEnumerable.call(value, 'callee');
    };

    /**
     * Checks if `value` is classified as an `Array` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array, else `false`.
     * @example
     *
     * _.isArray([1, 2, 3]);
     * // => true
     *
     * _.isArray(document.body.children);
     * // => false
     *
     * _.isArray('abc');
     * // => false
     *
     * _.isArray(_.noop);
     * // => false
     */
    var isArray = Array.isArray;

    /**
     * Checks if `value` is classified as an `ArrayBuffer` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     * @example
     *
     * _.isArrayBuffer(new ArrayBuffer(2));
     * // => true
     *
     * _.isArrayBuffer(new Array(2));
     * // => false
     */
    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;

    /**
     * Checks if `value` is array-like. A value is considered array-like if it's
     * not a function and has a `value.length` that's an integer greater than or
     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
     * @example
     *
     * _.isArrayLike([1, 2, 3]);
     * // => true
     *
     * _.isArrayLike(document.body.children);
     * // => true
     *
     * _.isArrayLike('abc');
     * // => true
     *
     * _.isArrayLike(_.noop);
     * // => false
     */
    function isArrayLike(value) {
      return value != null && isLength(value.length) && !isFunction(value);
    }

    /**
     * This method is like `_.isArrayLike` except that it also checks if `value`
     * is an object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array-like object,
     *  else `false`.
     * @example
     *
     * _.isArrayLikeObject([1, 2, 3]);
     * // => true
     *
     * _.isArrayLikeObject(document.body.children);
     * // => true
     *
     * _.isArrayLikeObject('abc');
     * // => false
     *
     * _.isArrayLikeObject(_.noop);
     * // => false
     */
    function isArrayLikeObject(value) {
      return isObjectLike(value) && isArrayLike(value);
    }

    /**
     * Checks if `value` is classified as a boolean primitive or object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
     * @example
     *
     * _.isBoolean(false);
     * // => true
     *
     * _.isBoolean(null);
     * // => false
     */
    function isBoolean(value) {
      return value === true || value === false ||
        (isObjectLike(value) && baseGetTag(value) == boolTag);
    }

    /**
     * Checks if `value` is a buffer.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
     * @example
     *
     * _.isBuffer(new Buffer(2));
     * // => true
     *
     * _.isBuffer(new Uint8Array(2));
     * // => false
     */
    var isBuffer = nativeIsBuffer || stubFalse;

    /**
     * Checks if `value` is classified as a `Date` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     * @example
     *
     * _.isDate(new Date);
     * // => true
     *
     * _.isDate('Mon April 23 2012');
     * // => false
     */
    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;

    /**
     * Checks if `value` is likely a DOM element.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
     * @example
     *
     * _.isElement(document.body);
     * // => true
     *
     * _.isElement('<body>');
     * // => false
     */
    function isElement(value) {
      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
    }

    /**
     * Checks if `value` is an empty object, collection, map, or set.
     *
     * Objects are considered empty if they have no own enumerable string keyed
     * properties.
     *
     * Array-like values such as `arguments` objects, arrays, buffers, strings, or
     * jQuery-like collections are considered empty if they have a `length` of `0`.
     * Similarly, maps and sets are considered empty if they have a `size` of `0`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
     * @example
     *
     * _.isEmpty(null);
     * // => true
     *
     * _.isEmpty(true);
     * // => true
     *
     * _.isEmpty(1);
     * // => true
     *
     * _.isEmpty([1, 2, 3]);
     * // => false
     *
     * _.isEmpty({ 'a': 1 });
     * // => false
     */
    function isEmpty(value) {
      if (value == null) {
        return true;
      }
      if (isArrayLike(value) &&
          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
            isBuffer(value) || isTypedArray(value) || isArguments(value))) {
        return !value.length;
      }
      var tag = getTag(value);
      if (tag == mapTag || tag == setTag) {
        return !value.size;
      }
      if (isPrototype(value)) {
        return !baseKeys(value).length;
      }
      for (var key in value) {
        if (hasOwnProperty.call(value, key)) {
          return false;
        }
      }
      return true;
    }

    /**
     * Performs a deep comparison between two values to determine if they are
     * equivalent.
     *
     * **Note:** This method supports comparing arrays, array buffers, booleans,
     * date objects, error objects, maps, numbers, `Object` objects, regexes,
     * sets, strings, symbols, and typed arrays. `Object` objects are compared
     * by their own, not inherited, enumerable properties. Functions and DOM
     * nodes are compared by strict equality, i.e. `===`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.isEqual(object, other);
     * // => true
     *
     * object === other;
     * // => false
     */
    function isEqual(value, other) {
      return baseIsEqual(value, other);
    }

    /**
     * This method is like `_.isEqual` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with up to
     * six arguments: (objValue, othValue [, index|key, object, other, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, othValue) {
     *   if (isGreeting(objValue) && isGreeting(othValue)) {
     *     return true;
     *   }
     * }
     *
     * var array = ['hello', 'goodbye'];
     * var other = ['hi', 'goodbye'];
     *
     * _.isEqualWith(array, other, customizer);
     * // => true
     */
    function isEqualWith(value, other, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      var result = customizer ? customizer(value, other) : undefined;
      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
    }

    /**
     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
     * `SyntaxError`, `TypeError`, or `URIError` object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
     * @example
     *
     * _.isError(new Error);
     * // => true
     *
     * _.isError(Error);
     * // => false
     */
    function isError(value) {
      if (!isObjectLike(value)) {
        return false;
      }
      var tag = baseGetTag(value);
      return tag == errorTag || tag == domExcTag ||
        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
    }

    /**
     * Checks if `value` is a finite primitive number.
     *
     * **Note:** This method is based on
     * [`Number.isFinite`](https://mdn.io/Number/isFinite).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
     * @example
     *
     * _.isFinite(3);
     * // => true
     *
     * _.isFinite(Number.MIN_VALUE);
     * // => true
     *
     * _.isFinite(Infinity);
     * // => false
     *
     * _.isFinite('3');
     * // => false
     */
    function isFinite(value) {
      return typeof value == 'number' && nativeIsFinite(value);
    }

    /**
     * Checks if `value` is classified as a `Function` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a function, else `false`.
     * @example
     *
     * _.isFunction(_);
     * // => true
     *
     * _.isFunction(/abc/);
     * // => false
     */
    function isFunction(value) {
      if (!isObject(value)) {
        return false;
      }
      // The use of `Object#toString` avoids issues with the `typeof` operator
      // in Safari 9 which returns 'object' for typed arrays and other constructors.
      var tag = baseGetTag(value);
      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
    }

    /**
     * Checks if `value` is an integer.
     *
     * **Note:** This method is based on
     * [`Number.isInteger`](https://mdn.io/Number/isInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
     * @example
     *
     * _.isInteger(3);
     * // => true
     *
     * _.isInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isInteger(Infinity);
     * // => false
     *
     * _.isInteger('3');
     * // => false
     */
    function isInteger(value) {
      return typeof value == 'number' && value == toInteger(value);
    }

    /**
     * Checks if `value` is a valid array-like length.
     *
     * **Note:** This method is loosely based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
     * @example
     *
     * _.isLength(3);
     * // => true
     *
     * _.isLength(Number.MIN_VALUE);
     * // => false
     *
     * _.isLength(Infinity);
     * // => false
     *
     * _.isLength('3');
     * // => false
     */
    function isLength(value) {
      return typeof value == 'number' &&
        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is the
     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
     * @example
     *
     * _.isObject({});
     * // => true
     *
     * _.isObject([1, 2, 3]);
     * // => true
     *
     * _.isObject(_.noop);
     * // => true
     *
     * _.isObject(null);
     * // => false
     */
    function isObject(value) {
      var type = typeof value;
      return value != null && (type == 'object' || type == 'function');
    }

    /**
     * Checks if `value` is object-like. A value is object-like if it's not `null`
     * and has a `typeof` result of "object".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
     * @example
     *
     * _.isObjectLike({});
     * // => true
     *
     * _.isObjectLike([1, 2, 3]);
     * // => true
     *
     * _.isObjectLike(_.noop);
     * // => false
     *
     * _.isObjectLike(null);
     * // => false
     */
    function isObjectLike(value) {
      return value != null && typeof value == 'object';
    }

    /**
     * Checks if `value` is classified as a `Map` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     * @example
     *
     * _.isMap(new Map);
     * // => true
     *
     * _.isMap(new WeakMap);
     * // => false
     */
    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;

    /**
     * Performs a partial deep comparison between `object` and `source` to
     * determine if `object` contains equivalent property values.
     *
     * **Note:** This method is equivalent to `_.matches` when `source` is
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.isMatch(object, { 'b': 2 });
     * // => true
     *
     * _.isMatch(object, { 'b': 1 });
     * // => false
     */
    function isMatch(object, source) {
      return object === source || baseIsMatch(object, source, getMatchData(source));
    }

    /**
     * This method is like `_.isMatch` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with five
     * arguments: (objValue, srcValue, index|key, object, source).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, srcValue) {
     *   if (isGreeting(objValue) && isGreeting(srcValue)) {
     *     return true;
     *   }
     * }
     *
     * var object = { 'greeting': 'hello' };
     * var source = { 'greeting': 'hi' };
     *
     * _.isMatchWith(object, source, customizer);
     * // => true
     */
    function isMatchWith(object, source, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseIsMatch(object, source, getMatchData(source), customizer);
    }

    /**
     * Checks if `value` is `NaN`.
     *
     * **Note:** This method is based on
     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
     * `undefined` and other non-number values.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
     * @example
     *
     * _.isNaN(NaN);
     * // => true
     *
     * _.isNaN(new Number(NaN));
     * // => true
     *
     * isNaN(undefined);
     * // => true
     *
     * _.isNaN(undefined);
     * // => false
     */
    function isNaN(value) {
      // An `NaN` primitive is the only value that is not equal to itself.
      // Perform the `toStringTag` check first to avoid errors with some
      // ActiveX objects in IE.
      return isNumber(value) && value != +value;
    }

    /**
     * Checks if `value` is a pristine native function.
     *
     * **Note:** This method can't reliably detect native functions in the presence
     * of the core-js package because core-js circumvents this kind of detection.
     * Despite multiple requests, the core-js maintainer has made it clear: any
     * attempt to fix the detection will be obstructed. As a result, we're left
     * with little choice but to throw an error. Unfortunately, this also affects
     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
     * which rely on core-js.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     * @example
     *
     * _.isNative(Array.prototype.push);
     * // => true
     *
     * _.isNative(_);
     * // => false
     */
    function isNative(value) {
      if (isMaskable(value)) {
        throw new Error(CORE_ERROR_TEXT);
      }
      return baseIsNative(value);
    }

    /**
     * Checks if `value` is `null`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
     * @example
     *
     * _.isNull(null);
     * // => true
     *
     * _.isNull(void 0);
     * // => false
     */
    function isNull(value) {
      return value === null;
    }

    /**
     * Checks if `value` is `null` or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
     * @example
     *
     * _.isNil(null);
     * // => true
     *
     * _.isNil(void 0);
     * // => true
     *
     * _.isNil(NaN);
     * // => false
     */
    function isNil(value) {
      return value == null;
    }

    /**
     * Checks if `value` is classified as a `Number` primitive or object.
     *
     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
     * classified as numbers, use the `_.isFinite` method.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a number, else `false`.
     * @example
     *
     * _.isNumber(3);
     * // => true
     *
     * _.isNumber(Number.MIN_VALUE);
     * // => true
     *
     * _.isNumber(Infinity);
     * // => true
     *
     * _.isNumber('3');
     * // => false
     */
    function isNumber(value) {
      return typeof value == 'number' ||
        (isObjectLike(value) && baseGetTag(value) == numberTag);
    }

    /**
     * Checks if `value` is a plain object, that is, an object created by the
     * `Object` constructor or one with a `[[Prototype]]` of `null`.
     *
     * @static
     * @memberOf _
     * @since 0.8.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * _.isPlainObject(new Foo);
     * // => false
     *
     * _.isPlainObject([1, 2, 3]);
     * // => false
     *
     * _.isPlainObject({ 'x': 0, 'y': 0 });
     * // => true
     *
     * _.isPlainObject(Object.create(null));
     * // => true
     */
    function isPlainObject(value) {
      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
        return false;
      }
      var proto = getPrototype(value);
      if (proto === null) {
        return true;
      }
      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
      return typeof Ctor == 'function' && Ctor instanceof Ctor &&
        funcToString.call(Ctor) == objectCtorString;
    }

    /**
     * Checks if `value` is classified as a `RegExp` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     * @example
     *
     * _.isRegExp(/abc/);
     * // => true
     *
     * _.isRegExp('/abc/');
     * // => false
     */
    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;

    /**
     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
     * double precision number which isn't the result of a rounded unsafe integer.
     *
     * **Note:** This method is based on
     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
     * @example
     *
     * _.isSafeInteger(3);
     * // => true
     *
     * _.isSafeInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isSafeInteger(Infinity);
     * // => false
     *
     * _.isSafeInteger('3');
     * // => false
     */
    function isSafeInteger(value) {
      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is classified as a `Set` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     * @example
     *
     * _.isSet(new Set);
     * // => true
     *
     * _.isSet(new WeakSet);
     * // => false
     */
    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;

    /**
     * Checks if `value` is classified as a `String` primitive or object.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a string, else `false`.
     * @example
     *
     * _.isString('abc');
     * // => true
     *
     * _.isString(1);
     * // => false
     */
    function isString(value) {
      return typeof value == 'string' ||
        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
    }

    /**
     * Checks if `value` is classified as a `Symbol` primitive or object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
     * @example
     *
     * _.isSymbol(Symbol.iterator);
     * // => true
     *
     * _.isSymbol('abc');
     * // => false
     */
    function isSymbol(value) {
      return typeof value == 'symbol' ||
        (isObjectLike(value) && baseGetTag(value) == symbolTag);
    }

    /**
     * Checks if `value` is classified as a typed array.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     * @example
     *
     * _.isTypedArray(new Uint8Array);
     * // => true
     *
     * _.isTypedArray([]);
     * // => false
     */
    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;

    /**
     * Checks if `value` is `undefined`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
     * @example
     *
     * _.isUndefined(void 0);
     * // => true
     *
     * _.isUndefined(null);
     * // => false
     */
    function isUndefined(value) {
      return value === undefined;
    }

    /**
     * Checks if `value` is classified as a `WeakMap` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
     * @example
     *
     * _.isWeakMap(new WeakMap);
     * // => true
     *
     * _.isWeakMap(new Map);
     * // => false
     */
    function isWeakMap(value) {
      return isObjectLike(value) && getTag(value) == weakMapTag;
    }

    /**
     * Checks if `value` is classified as a `WeakSet` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
     * @example
     *
     * _.isWeakSet(new WeakSet);
     * // => true
     *
     * _.isWeakSet(new Set);
     * // => false
     */
    function isWeakSet(value) {
      return isObjectLike(value) && baseGetTag(value) == weakSetTag;
    }

    /**
     * Checks if `value` is less than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     * @see _.gt
     * @example
     *
     * _.lt(1, 3);
     * // => true
     *
     * _.lt(3, 3);
     * // => false
     *
     * _.lt(3, 1);
     * // => false
     */
    var lt = createRelationalOperation(baseLt);

    /**
     * Checks if `value` is less than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than or equal to
     *  `other`, else `false`.
     * @see _.gte
     * @example
     *
     * _.lte(1, 3);
     * // => true
     *
     * _.lte(3, 3);
     * // => true
     *
     * _.lte(3, 1);
     * // => false
     */
    var lte = createRelationalOperation(function(value, other) {
      return value <= other;
    });

    /**
     * Converts `value` to an array.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Array} Returns the converted array.
     * @example
     *
     * _.toArray({ 'a': 1, 'b': 2 });
     * // => [1, 2]
     *
     * _.toArray('abc');
     * // => ['a', 'b', 'c']
     *
     * _.toArray(1);
     * // => []
     *
     * _.toArray(null);
     * // => []
     */
    function toArray(value) {
      if (!value) {
        return [];
      }
      if (isArrayLike(value)) {
        return isString(value) ? stringToArray(value) : copyArray(value);
      }
      if (symIterator && value[symIterator]) {
        return iteratorToArray(value[symIterator]());
      }
      var tag = getTag(value),
          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);

      return func(value);
    }

    /**
     * Converts `value` to a finite number.
     *
     * @static
     * @memberOf _
     * @since 4.12.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted number.
     * @example
     *
     * _.toFinite(3.2);
     * // => 3.2
     *
     * _.toFinite(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toFinite(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toFinite('3.2');
     * // => 3.2
     */
    function toFinite(value) {
      if (!value) {
        return value === 0 ? value : 0;
      }
      value = toNumber(value);
      if (value === INFINITY || value === -INFINITY) {
        var sign = (value < 0 ? -1 : 1);
        return sign * MAX_INTEGER;
      }
      return value === value ? value : 0;
    }

    /**
     * Converts `value` to an integer.
     *
     * **Note:** This method is loosely based on
     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toInteger(3.2);
     * // => 3
     *
     * _.toInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toInteger(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toInteger('3.2');
     * // => 3
     */
    function toInteger(value) {
      var result = toFinite(value),
          remainder = result % 1;

      return result === result ? (remainder ? result - remainder : result) : 0;
    }

    /**
     * Converts `value` to an integer suitable for use as the length of an
     * array-like object.
     *
     * **Note:** This method is based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toLength(3.2);
     * // => 3
     *
     * _.toLength(Number.MIN_VALUE);
     * // => 0
     *
     * _.toLength(Infinity);
     * // => 4294967295
     *
     * _.toLength('3.2');
     * // => 3
     */
    function toLength(value) {
      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
    }

    /**
     * Converts `value` to a number.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     * @example
     *
     * _.toNumber(3.2);
     * // => 3.2
     *
     * _.toNumber(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toNumber(Infinity);
     * // => Infinity
     *
     * _.toNumber('3.2');
     * // => 3.2
     */
    function toNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      if (isObject(value)) {
        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
        value = isObject(other) ? (other + '') : other;
      }
      if (typeof value != 'string') {
        return value === 0 ? value : +value;
      }
      value = value.replace(reTrim, '');
      var isBinary = reIsBinary.test(value);
      return (isBinary || reIsOctal.test(value))
        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
        : (reIsBadHex.test(value) ? NAN : +value);
    }

    /**
     * Converts `value` to a plain object flattening inherited enumerable string
     * keyed properties of `value` to own properties of the plain object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Object} Returns the converted plain object.
     * @example
     *
     * function Foo() {
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.assign({ 'a': 1 }, new Foo);
     * // => { 'a': 1, 'b': 2 }
     *
     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
     * // => { 'a': 1, 'b': 2, 'c': 3 }
     */
    function toPlainObject(value) {
      return copyObject(value, keysIn(value));
    }

    /**
     * Converts `value` to a safe integer. A safe integer can be compared and
     * represented correctly.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toSafeInteger(3.2);
     * // => 3
     *
     * _.toSafeInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toSafeInteger(Infinity);
     * // => 9007199254740991
     *
     * _.toSafeInteger('3.2');
     * // => 3
     */
    function toSafeInteger(value) {
      return value
        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
        : (value === 0 ? value : 0);
    }

    /**
     * Converts `value` to a string. An empty string is returned for `null`
     * and `undefined` values. The sign of `-0` is preserved.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.toString(null);
     * // => ''
     *
     * _.toString(-0);
     * // => '-0'
     *
     * _.toString([1, 2, 3]);
     * // => '1,2,3'
     */
    function toString(value) {
      return value == null ? '' : baseToString(value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Assigns own enumerable string keyed properties of source objects to the
     * destination object. Source objects are applied from left to right.
     * Subsequent sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object` and is loosely based on
     * [`Object.assign`](https://mdn.io/Object/assign).
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assignIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assign({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'c': 3 }
     */
    var assign = createAssigner(function(object, source) {
      if (isPrototype(source) || isArrayLike(source)) {
        copyObject(source, keys(source), object);
        return;
      }
      for (var key in source) {
        if (hasOwnProperty.call(source, key)) {
          assignValue(object, key, source[key]);
        }
      }
    });

    /**
     * This method is like `_.assign` except that it iterates over own and
     * inherited source properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extend
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assign
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assignIn({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
     */
    var assignIn = createAssigner(function(object, source) {
      copyObject(source, keysIn(source), object);
    });

    /**
     * This method is like `_.assignIn` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extendWith
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignInWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keysIn(source), object, customizer);
    });

    /**
     * This method is like `_.assign` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignInWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keys(source), object, customizer);
    });

    /**
     * Creates an array of values corresponding to `paths` of `object`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Array} Returns the picked values.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _.at(object, ['a[0].b.c', 'a[1]']);
     * // => [3, 4]
     */
    var at = flatRest(baseAt);

    /**
     * Creates an object that inherits from the `prototype` object. If a
     * `properties` object is given, its own enumerable string keyed properties
     * are assigned to the created object.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Object
     * @param {Object} prototype The object to inherit from.
     * @param {Object} [properties] The properties to assign to the object.
     * @returns {Object} Returns the new object.
     * @example
     *
     * function Shape() {
     *   this.x = 0;
     *   this.y = 0;
     * }
     *
     * function Circle() {
     *   Shape.call(this);
     * }
     *
     * Circle.prototype = _.create(Shape.prototype, {
     *   'constructor': Circle
     * });
     *
     * var circle = new Circle;
     * circle instanceof Circle;
     * // => true
     *
     * circle instanceof Shape;
     * // => true
     */
    function create(prototype, properties) {
      var result = baseCreate(prototype);
      return properties == null ? result : baseAssign(result, properties);
    }

    /**
     * Assigns own and inherited enumerable string keyed properties of source
     * objects to the destination object for all destination properties that
     * resolve to `undefined`. Source objects are applied from left to right.
     * Once a property is set, additional values of the same property are ignored.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaultsDeep
     * @example
     *
     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var defaults = baseRest(function(args) {
      args.push(undefined, customDefaultsAssignIn);
      return apply(assignInWith, undefined, args);
    });

    /**
     * This method is like `_.defaults` except that it recursively assigns
     * default properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaults
     * @example
     *
     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
     * // => { 'a': { 'b': 2, 'c': 3 } }
     */
    var defaultsDeep = baseRest(function(args) {
      args.push(undefined, customDefaultsMerge);
      return apply(mergeWith, undefined, args);
    });

    /**
     * This method is like `_.find` except that it returns the key of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findKey(users, function(o) { return o.age < 40; });
     * // => 'barney' (iteration order is not guaranteed)
     *
     * // The `_.matches` iteratee shorthand.
     * _.findKey(users, { 'age': 1, 'active': true });
     * // => 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findKey(users, 'active');
     * // => 'barney'
     */
    function findKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
    }

    /**
     * This method is like `_.findKey` except that it iterates over elements of
     * a collection in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findLastKey(users, function(o) { return o.age < 40; });
     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastKey(users, { 'age': 36, 'active': true });
     * // => 'barney'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastKey(users, 'active');
     * // => 'pebbles'
     */
    function findLastKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
    }

    /**
     * Iterates over own and inherited enumerable string keyed properties of an
     * object and invokes `iteratee` for each property. The iteratee is invoked
     * with three arguments: (value, key, object). Iteratee functions may exit
     * iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forInRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forIn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
     */
    function forIn(object, iteratee) {
      return object == null
        ? object
        : baseFor(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * This method is like `_.forIn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forInRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
     */
    function forInRight(object, iteratee) {
      return object == null
        ? object
        : baseForRight(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * Iterates over own enumerable string keyed properties of an object and
     * invokes `iteratee` for each property. The iteratee is invoked with three
     * arguments: (value, key, object). Iteratee functions may exit iteration
     * early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwnRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forOwn(object, iteratee) {
      return object && baseForOwn(object, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forOwn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwnRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
     */
    function forOwnRight(object, iteratee) {
      return object && baseForOwnRight(object, getIteratee(iteratee, 3));
    }

    /**
     * Creates an array of function property names from own enumerable properties
     * of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functionsIn
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functions(new Foo);
     * // => ['a', 'b']
     */
    function functions(object) {
      return object == null ? [] : baseFunctions(object, keys(object));
    }

    /**
     * Creates an array of function property names from own and inherited
     * enumerable properties of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functions
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functionsIn(new Foo);
     * // => ['a', 'b', 'c']
     */
    function functionsIn(object) {
      return object == null ? [] : baseFunctions(object, keysIn(object));
    }

    /**
     * Gets the value at `path` of `object`. If the resolved value is
     * `undefined`, the `defaultValue` is returned in its place.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.get(object, 'a[0].b.c');
     * // => 3
     *
     * _.get(object, ['a', '0', 'b', 'c']);
     * // => 3
     *
     * _.get(object, 'a.b.c', 'default');
     * // => 'default'
     */
    function get(object, path, defaultValue) {
      var result = object == null ? undefined : baseGet(object, path);
      return result === undefined ? defaultValue : result;
    }

    /**
     * Checks if `path` is a direct property of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = { 'a': { 'b': 2 } };
     * var other = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.has(object, 'a');
     * // => true
     *
     * _.has(object, 'a.b');
     * // => true
     *
     * _.has(object, ['a', 'b']);
     * // => true
     *
     * _.has(other, 'a');
     * // => false
     */
    function has(object, path) {
      return object != null && hasPath(object, path, baseHas);
    }

    /**
     * Checks if `path` is a direct or inherited property of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.hasIn(object, 'a');
     * // => true
     *
     * _.hasIn(object, 'a.b');
     * // => true
     *
     * _.hasIn(object, ['a', 'b']);
     * // => true
     *
     * _.hasIn(object, 'b');
     * // => false
     */
    function hasIn(object, path) {
      return object != null && hasPath(object, path, baseHasIn);
    }

    /**
     * Creates an object composed of the inverted keys and values of `object`.
     * If `object` contains duplicate values, subsequent values overwrite
     * property assignments of previous values.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Object
     * @param {Object} object The object to invert.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invert(object);
     * // => { '1': 'c', '2': 'b' }
     */
    var invert = createInverter(function(result, value, key) {
      result[value] = key;
    }, constant(identity));

    /**
     * This method is like `_.invert` except that the inverted object is generated
     * from the results of running each element of `object` thru `iteratee`. The
     * corresponding inverted value of each inverted key is an array of keys
     * responsible for generating the inverted value. The iteratee is invoked
     * with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Object
     * @param {Object} object The object to invert.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invertBy(object);
     * // => { '1': ['a', 'c'], '2': ['b'] }
     *
     * _.invertBy(object, function(value) {
     *   return 'group' + value;
     * });
     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
     */
    var invertBy = createInverter(function(result, value, key) {
      if (hasOwnProperty.call(result, value)) {
        result[value].push(key);
      } else {
        result[value] = [key];
      }
    }, getIteratee);

    /**
     * Invokes the method at `path` of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
     *
     * _.invoke(object, 'a[0].b.c.slice', 1, 3);
     * // => [2, 3]
     */
    var invoke = baseRest(baseInvoke);

    /**
     * Creates an array of the own enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects. See the
     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * for more details.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keys(new Foo);
     * // => ['a', 'b'] (iteration order is not guaranteed)
     *
     * _.keys('hi');
     * // => ['0', '1']
     */
    function keys(object) {
      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
    }

    /**
     * Creates an array of the own and inherited enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keysIn(new Foo);
     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
     */
    function keysIn(object) {
      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
    }

    /**
     * The opposite of `_.mapValues`; this method creates an object with the
     * same values as `object` and keys generated by running each own enumerable
     * string keyed property of `object` thru `iteratee`. The iteratee is invoked
     * with three arguments: (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapValues
     * @example
     *
     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
     *   return key + value;
     * });
     * // => { 'a1': 1, 'b2': 2 }
     */
    function mapKeys(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, iteratee(value, key, object), value);
      });
      return result;
    }

    /**
     * Creates an object with the same keys as `object` and values generated
     * by running each own enumerable string keyed property of `object` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapKeys
     * @example
     *
     * var users = {
     *   'fred':    { 'user': 'fred',    'age': 40 },
     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
     * };
     *
     * _.mapValues(users, function(o) { return o.age; });
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     *
     * // The `_.property` iteratee shorthand.
     * _.mapValues(users, 'age');
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     */
    function mapValues(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, key, iteratee(value, key, object));
      });
      return result;
    }

    /**
     * This method is like `_.assign` except that it recursively merges own and
     * inherited enumerable string keyed properties of source objects into the
     * destination object. Source properties that resolve to `undefined` are
     * skipped if a destination value exists. Array and plain object properties
     * are merged recursively. Other objects and value types are overridden by
     * assignment. Source objects are applied from left to right. Subsequent
     * sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {
     *   'a': [{ 'b': 2 }, { 'd': 4 }]
     * };
     *
     * var other = {
     *   'a': [{ 'c': 3 }, { 'e': 5 }]
     * };
     *
     * _.merge(object, other);
     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
     */
    var merge = createAssigner(function(object, source, srcIndex) {
      baseMerge(object, source, srcIndex);
    });

    /**
     * This method is like `_.merge` except that it accepts `customizer` which
     * is invoked to produce the merged values of the destination and source
     * properties. If `customizer` returns `undefined`, merging is handled by the
     * method instead. The `customizer` is invoked with six arguments:
     * (objValue, srcValue, key, object, source, stack).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   if (_.isArray(objValue)) {
     *     return objValue.concat(srcValue);
     *   }
     * }
     *
     * var object = { 'a': [1], 'b': [2] };
     * var other = { 'a': [3], 'b': [4] };
     *
     * _.mergeWith(object, other, customizer);
     * // => { 'a': [1, 3], 'b': [2, 4] }
     */
    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
      baseMerge(object, source, srcIndex, customizer);
    });

    /**
     * The opposite of `_.pick`; this method creates an object composed of the
     * own and inherited enumerable property paths of `object` that are not omitted.
     *
     * **Note:** This method is considerably slower than `_.pick`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to omit.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omit(object, ['a', 'c']);
     * // => { 'b': '2' }
     */
    var omit = flatRest(function(object, paths) {
      var result = {};
      if (object == null) {
        return result;
      }
      var isDeep = false;
      paths = arrayMap(paths, function(path) {
        path = castPath(path, object);
        isDeep || (isDeep = path.length > 1);
        return path;
      });
      copyObject(object, getAllKeysIn(object), result);
      if (isDeep) {
        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
      }
      var length = paths.length;
      while (length--) {
        baseUnset(result, paths[length]);
      }
      return result;
    });

    /**
     * The opposite of `_.pickBy`; this method creates an object composed of
     * the own and inherited enumerable string keyed properties of `object` that
     * `predicate` doesn't return truthy for. The predicate is invoked with two
     * arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omitBy(object, _.isNumber);
     * // => { 'b': '2' }
     */
    function omitBy(object, predicate) {
      return pickBy(object, negate(getIteratee(predicate)));
    }

    /**
     * Creates an object composed of the picked `object` properties.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pick(object, ['a', 'c']);
     * // => { 'a': 1, 'c': 3 }
     */
    var pick = flatRest(function(object, paths) {
      return object == null ? {} : basePick(object, paths);
    });

    /**
     * Creates an object composed of the `object` properties `predicate` returns
     * truthy for. The predicate is invoked with two arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pickBy(object, _.isNumber);
     * // => { 'a': 1, 'c': 3 }
     */
    function pickBy(object, predicate) {
      if (object == null) {
        return {};
      }
      var props = arrayMap(getAllKeysIn(object), function(prop) {
        return [prop];
      });
      predicate = getIteratee(predicate);
      return basePickBy(object, props, function(value, path) {
        return predicate(value, path[0]);
      });
    }

    /**
     * This method is like `_.get` except that if the resolved value is a
     * function it's invoked with the `this` binding of its parent object and
     * its result is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to resolve.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
     *
     * _.result(object, 'a[0].b.c1');
     * // => 3
     *
     * _.result(object, 'a[0].b.c2');
     * // => 4
     *
     * _.result(object, 'a[0].b.c3', 'default');
     * // => 'default'
     *
     * _.result(object, 'a[0].b.c3', _.constant('default'));
     * // => 'default'
     */
    function result(object, path, defaultValue) {
      path = castPath(path, object);

      var index = -1,
          length = path.length;

      // Ensure the loop is entered when path is empty.
      if (!length) {
        length = 1;
        object = undefined;
      }
      while (++index < length) {
        var value = object == null ? undefined : object[toKey(path[index])];
        if (value === undefined) {
          index = length;
          value = defaultValue;
        }
        object = isFunction(value) ? value.call(object) : value;
      }
      return object;
    }

    /**
     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
     * it's created. Arrays are created for missing index properties while objects
     * are created for all other missing properties. Use `_.setWith` to customize
     * `path` creation.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.set(object, 'a[0].b.c', 4);
     * console.log(object.a[0].b.c);
     * // => 4
     *
     * _.set(object, ['x', '0', 'y', 'z'], 5);
     * console.log(object.x[0].y.z);
     * // => 5
     */
    function set(object, path, value) {
      return object == null ? object : baseSet(object, path, value);
    }

    /**
     * This method is like `_.set` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.setWith(object, '[0][1]', 'a', Object);
     * // => { '0': { '1': 'a' } }
     */
    function setWith(object, path, value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseSet(object, path, value, customizer);
    }

    /**
     * Creates an array of own enumerable string keyed-value pairs for `object`
     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
     * entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entries
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairs(new Foo);
     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
     */
    var toPairs = createToPairs(keys);

    /**
     * Creates an array of own and inherited enumerable string keyed-value pairs
     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
     * or set, its entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entriesIn
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairsIn(new Foo);
     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
     */
    var toPairsIn = createToPairs(keysIn);

    /**
     * An alternative to `_.reduce`; this method transforms `object` to a new
     * `accumulator` object which is the result of running each of its own
     * enumerable string keyed properties thru `iteratee`, with each invocation
     * potentially mutating the `accumulator` object. If `accumulator` is not
     * provided, a new object with the same `[[Prototype]]` will be used. The
     * iteratee is invoked with four arguments: (accumulator, value, key, object).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The custom accumulator value.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.transform([2, 3, 4], function(result, n) {
     *   result.push(n *= n);
     *   return n % 2 == 0;
     * }, []);
     * // => [4, 9]
     *
     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] }
     */
    function transform(object, iteratee, accumulator) {
      var isArr = isArray(object),
          isArrLike = isArr || isBuffer(object) || isTypedArray(object);

      iteratee = getIteratee(iteratee, 4);
      if (accumulator == null) {
        var Ctor = object && object.constructor;
        if (isArrLike) {
          accumulator = isArr ? new Ctor : [];
        }
        else if (isObject(object)) {
          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
        }
        else {
          accumulator = {};
        }
      }
      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
        return iteratee(accumulator, value, index, object);
      });
      return accumulator;
    }

    /**
     * Removes the property at `path` of `object`.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 7 } }] };
     * _.unset(object, 'a[0].b.c');
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     *
     * _.unset(object, ['a', '0', 'b', 'c']);
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     */
    function unset(object, path) {
      return object == null ? true : baseUnset(object, path);
    }

    /**
     * This method is like `_.set` except that accepts `updater` to produce the
     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
     * is invoked with one argument: (value).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.update(object, 'a[0].b.c', function(n) { return n * n; });
     * console.log(object.a[0].b.c);
     * // => 9
     *
     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
     * console.log(object.x[0].y.z);
     * // => 0
     */
    function update(object, path, updater) {
      return object == null ? object : baseUpdate(object, path, castFunction(updater));
    }

    /**
     * This method is like `_.update` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.updateWith(object, '[0][1]', _.constant('a'), Object);
     * // => { '0': { '1': 'a' } }
     */
    function updateWith(object, path, updater, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
    }

    /**
     * Creates an array of the own enumerable string keyed property values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.values(new Foo);
     * // => [1, 2] (iteration order is not guaranteed)
     *
     * _.values('hi');
     * // => ['h', 'i']
     */
    function values(object) {
      return object == null ? [] : baseValues(object, keys(object));
    }

    /**
     * Creates an array of the own and inherited enumerable string keyed property
     * values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.valuesIn(new Foo);
     * // => [1, 2, 3] (iteration order is not guaranteed)
     */
    function valuesIn(object) {
      return object == null ? [] : baseValues(object, keysIn(object));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Clamps `number` within the inclusive `lower` and `upper` bounds.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Number
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     * @example
     *
     * _.clamp(-10, -5, 5);
     * // => -5
     *
     * _.clamp(10, -5, 5);
     * // => 5
     */
    function clamp(number, lower, upper) {
      if (upper === undefined) {
        upper = lower;
        lower = undefined;
      }
      if (upper !== undefined) {
        upper = toNumber(upper);
        upper = upper === upper ? upper : 0;
      }
      if (lower !== undefined) {
        lower = toNumber(lower);
        lower = lower === lower ? lower : 0;
      }
      return baseClamp(toNumber(number), lower, upper);
    }

    /**
     * Checks if `n` is between `start` and up to, but not including, `end`. If
     * `end` is not specified, it's set to `start` with `start` then set to `0`.
     * If `start` is greater than `end` the params are swapped to support
     * negative ranges.
     *
     * @static
     * @memberOf _
     * @since 3.3.0
     * @category Number
     * @param {number} number The number to check.
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     * @see _.range, _.rangeRight
     * @example
     *
     * _.inRange(3, 2, 4);
     * // => true
     *
     * _.inRange(4, 8);
     * // => true
     *
     * _.inRange(4, 2);
     * // => false
     *
     * _.inRange(2, 2);
     * // => false
     *
     * _.inRange(1.2, 2);
     * // => true
     *
     * _.inRange(5.2, 4);
     * // => false
     *
     * _.inRange(-3, -2, -6);
     * // => true
     */
    function inRange(number, start, end) {
      start = toFinite(start);
      if (end === undefined) {
        end = start;
        start = 0;
      } else {
        end = toFinite(end);
      }
      number = toNumber(number);
      return baseInRange(number, start, end);
    }

    /**
     * Produces a random number between the inclusive `lower` and `upper` bounds.
     * If only one argument is provided a number between `0` and the given number
     * is returned. If `floating` is `true`, or either `lower` or `upper` are
     * floats, a floating-point number is returned instead of an integer.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Number
     * @param {number} [lower=0] The lower bound.
     * @param {number} [upper=1] The upper bound.
     * @param {boolean} [floating] Specify returning a floating-point number.
     * @returns {number} Returns the random number.
     * @example
     *
     * _.random(0, 5);
     * // => an integer between 0 and 5
     *
     * _.random(5);
     * // => also an integer between 0 and 5
     *
     * _.random(5, true);
     * // => a floating-point number between 0 and 5
     *
     * _.random(1.2, 5.2);
     * // => a floating-point number between 1.2 and 5.2
     */
    function random(lower, upper, floating) {
      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
        upper = floating = undefined;
      }
      if (floating === undefined) {
        if (typeof upper == 'boolean') {
          floating = upper;
          upper = undefined;
        }
        else if (typeof lower == 'boolean') {
          floating = lower;
          lower = undefined;
        }
      }
      if (lower === undefined && upper === undefined) {
        lower = 0;
        upper = 1;
      }
      else {
        lower = toFinite(lower);
        if (upper === undefined) {
          upper = lower;
          lower = 0;
        } else {
          upper = toFinite(upper);
        }
      }
      if (lower > upper) {
        var temp = lower;
        lower = upper;
        upper = temp;
      }
      if (floating || lower % 1 || upper % 1) {
        var rand = nativeRandom();
        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
      }
      return baseRandom(lower, upper);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the camel cased string.
     * @example
     *
     * _.camelCase('Foo Bar');
     * // => 'fooBar'
     *
     * _.camelCase('--foo-bar--');
     * // => 'fooBar'
     *
     * _.camelCase('__FOO_BAR__');
     * // => 'fooBar'
     */
    var camelCase = createCompounder(function(result, word, index) {
      word = word.toLowerCase();
      return result + (index ? capitalize(word) : word);
    });

    /**
     * Converts the first character of `string` to upper case and the remaining
     * to lower case.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to capitalize.
     * @returns {string} Returns the capitalized string.
     * @example
     *
     * _.capitalize('FRED');
     * // => 'Fred'
     */
    function capitalize(string) {
      return upperFirst(toString(string).toLowerCase());
    }

    /**
     * Deburrs `string` by converting
     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
     * letters to basic Latin letters and removing
     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to deburr.
     * @returns {string} Returns the deburred string.
     * @example
     *
     * _.deburr('déjà vu');
     * // => 'deja vu'
     */
    function deburr(string) {
      string = toString(string);
      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
    }

    /**
     * Checks if `string` ends with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=string.length] The position to search up to.
     * @returns {boolean} Returns `true` if `string` ends with `target`,
     *  else `false`.
     * @example
     *
     * _.endsWith('abc', 'c');
     * // => true
     *
     * _.endsWith('abc', 'b');
     * // => false
     *
     * _.endsWith('abc', 'b', 2);
     * // => true
     */
    function endsWith(string, target, position) {
      string = toString(string);
      target = baseToString(target);

      var length = string.length;
      position = position === undefined
        ? length
        : baseClamp(toInteger(position), 0, length);

      var end = position;
      position -= target.length;
      return position >= 0 && string.slice(position, end) == target;
    }

    /**
     * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
     * corresponding HTML entities.
     *
     * **Note:** No other characters are escaped. To escape additional
     * characters use a third-party library like [_he_](https://mths.be/he).
     *
     * Though the ">" character is escaped for symmetry, characters like
     * ">" and "/" don't need escaping in HTML and have no special meaning
     * unless they're part of a tag or unquoted attribute value. See
     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
     * (under "semi-related fun fact") for more details.
     *
     * When working with HTML you should always
     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
     * XSS vectors.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escape('fred, barney, & pebbles');
     * // => 'fred, barney, &amp; pebbles'
     */
    function escape(string) {
      string = toString(string);
      return (string && reHasUnescapedHtml.test(string))
        ? string.replace(reUnescapedHtml, escapeHtmlChar)
        : string;
    }

    /**
     * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
     * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escapeRegExp('[lodash](https://lodash.com/)');
     * // => '\[lodash\]\(https://lodash\.com/\)'
     */
    function escapeRegExp(string) {
      string = toString(string);
      return (string && reHasRegExpChar.test(string))
        ? string.replace(reRegExpChar, '\\$&')
        : string;
    }

    /**
     * Converts `string` to
     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the kebab cased string.
     * @example
     *
     * _.kebabCase('Foo Bar');
     * // => 'foo-bar'
     *
     * _.kebabCase('fooBar');
     * // => 'foo-bar'
     *
     * _.kebabCase('__FOO_BAR__');
     * // => 'foo-bar'
     */
    var kebabCase = createCompounder(function(result, word, index) {
      return result + (index ? '-' : '') + word.toLowerCase();
    });

    /**
     * Converts `string`, as space separated words, to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.lowerCase('--Foo-Bar--');
     * // => 'foo bar'
     *
     * _.lowerCase('fooBar');
     * // => 'foo bar'
     *
     * _.lowerCase('__FOO_BAR__');
     * // => 'foo bar'
     */
    var lowerCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toLowerCase();
    });

    /**
     * Converts the first character of `string` to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.lowerFirst('Fred');
     * // => 'fred'
     *
     * _.lowerFirst('FRED');
     * // => 'fRED'
     */
    var lowerFirst = createCaseFirst('toLowerCase');

    /**
     * Pads `string` on the left and right sides if it's shorter than `length`.
     * Padding characters are truncated if they can't be evenly divided by `length`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.pad('abc', 8);
     * // => '  abc   '
     *
     * _.pad('abc', 8, '_-');
     * // => '_-abc_-_'
     *
     * _.pad('abc', 3);
     * // => 'abc'
     */
    function pad(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      if (!length || strLength >= length) {
        return string;
      }
      var mid = (length - strLength) / 2;
      return (
        createPadding(nativeFloor(mid), chars) +
        string +
        createPadding(nativeCeil(mid), chars)
      );
    }

    /**
     * Pads `string` on the right side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padEnd('abc', 6);
     * // => 'abc   '
     *
     * _.padEnd('abc', 6, '_-');
     * // => 'abc_-_'
     *
     * _.padEnd('abc', 3);
     * // => 'abc'
     */
    function padEnd(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (string + createPadding(length - strLength, chars))
        : string;
    }

    /**
     * Pads `string` on the left side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padStart('abc', 6);
     * // => '   abc'
     *
     * _.padStart('abc', 6, '_-');
     * // => '_-_abc'
     *
     * _.padStart('abc', 3);
     * // => 'abc'
     */
    function padStart(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (createPadding(length - strLength, chars) + string)
        : string;
    }

    /**
     * Converts `string` to an integer of the specified radix. If `radix` is
     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
     * hexadecimal, in which case a `radix` of `16` is used.
     *
     * **Note:** This method aligns with the
     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category String
     * @param {string} string The string to convert.
     * @param {number} [radix=10] The radix to interpret `value` by.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.parseInt('08');
     * // => 8
     *
     * _.map(['6', '08', '10'], _.parseInt);
     * // => [6, 8, 10]
     */
    function parseInt(string, radix, guard) {
      if (guard || radix == null) {
        radix = 0;
      } else if (radix) {
        radix = +radix;
      }
      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
    }

    /**
     * Repeats the given string `n` times.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to repeat.
     * @param {number} [n=1] The number of times to repeat the string.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the repeated string.
     * @example
     *
     * _.repeat('*', 3);
     * // => '***'
     *
     * _.repeat('abc', 2);
     * // => 'abcabc'
     *
     * _.repeat('abc', 0);
     * // => ''
     */
    function repeat(string, n, guard) {
      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      return baseRepeat(toString(string), n);
    }

    /**
     * Replaces matches for `pattern` in `string` with `replacement`.
     *
     * **Note:** This method is based on
     * [`String#replace`](https://mdn.io/String/replace).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to modify.
     * @param {RegExp|string} pattern The pattern to replace.
     * @param {Function|string} replacement The match replacement.
     * @returns {string} Returns the modified string.
     * @example
     *
     * _.replace('Hi Fred', 'Fred', 'Barney');
     * // => 'Hi Barney'
     */
    function replace() {
      var args = arguments,
          string = toString(args[0]);

      return args.length < 3 ? string : string.replace(args[1], args[2]);
    }

    /**
     * Converts `string` to
     * [snake case](https://en.wikipedia.org/wiki/Snake_case).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the snake cased string.
     * @example
     *
     * _.snakeCase('Foo Bar');
     * // => 'foo_bar'
     *
     * _.snakeCase('fooBar');
     * // => 'foo_bar'
     *
     * _.snakeCase('--FOO-BAR--');
     * // => 'foo_bar'
     */
    var snakeCase = createCompounder(function(result, word, index) {
      return result + (index ? '_' : '') + word.toLowerCase();
    });

    /**
     * Splits `string` by `separator`.
     *
     * **Note:** This method is based on
     * [`String#split`](https://mdn.io/String/split).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to split.
     * @param {RegExp|string} separator The separator pattern to split by.
     * @param {number} [limit] The length to truncate results to.
     * @returns {Array} Returns the string segments.
     * @example
     *
     * _.split('a-b-c', '-', 2);
     * // => ['a', 'b']
     */
    function split(string, separator, limit) {
      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
        separator = limit = undefined;
      }
      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
      if (!limit) {
        return [];
      }
      string = toString(string);
      if (string && (
            typeof separator == 'string' ||
            (separator != null && !isRegExp(separator))
          )) {
        separator = baseToString(separator);
        if (!separator && hasUnicode(string)) {
          return castSlice(stringToArray(string), 0, limit);
        }
      }
      return string.split(separator, limit);
    }

    /**
     * Converts `string` to
     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
     *
     * @static
     * @memberOf _
     * @since 3.1.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the start cased string.
     * @example
     *
     * _.startCase('--foo-bar--');
     * // => 'Foo Bar'
     *
     * _.startCase('fooBar');
     * // => 'Foo Bar'
     *
     * _.startCase('__FOO_BAR__');
     * // => 'FOO BAR'
     */
    var startCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + upperFirst(word);
    });

    /**
     * Checks if `string` starts with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=0] The position to search from.
     * @returns {boolean} Returns `true` if `string` starts with `target`,
     *  else `false`.
     * @example
     *
     * _.startsWith('abc', 'a');
     * // => true
     *
     * _.startsWith('abc', 'b');
     * // => false
     *
     * _.startsWith('abc', 'b', 1);
     * // => true
     */
    function startsWith(string, target, position) {
      string = toString(string);
      position = position == null
        ? 0
        : baseClamp(toInteger(position), 0, string.length);

      target = baseToString(target);
      return string.slice(position, position + target.length) == target;
    }

    /**
     * Creates a compiled template function that can interpolate data properties
     * in "interpolate" delimiters, HTML-escape interpolated data properties in
     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
     * properties may be accessed as free variables in the template. If a setting
     * object is given, it takes precedence over `_.templateSettings` values.
     *
     * **Note:** In the development build `_.template` utilizes
     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
     * for easier debugging.
     *
     * For more information on precompiling templates see
     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
     *
     * For more information on Chrome extension sandboxes see
     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The template string.
     * @param {Object} [options={}] The options object.
     * @param {RegExp} [options.escape=_.templateSettings.escape]
     *  The HTML "escape" delimiter.
     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
     *  The "evaluate" delimiter.
     * @param {Object} [options.imports=_.templateSettings.imports]
     *  An object to import into the template as free variables.
     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
     *  The "interpolate" delimiter.
     * @param {string} [options.sourceURL='lodash.templateSources[n]']
     *  The sourceURL of the compiled template.
     * @param {string} [options.variable='obj']
     *  The data object variable name.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the compiled template function.
     * @example
     *
     * // Use the "interpolate" delimiter to create a compiled template.
     * var compiled = _.template('hello <%= user %>!');
     * compiled({ 'user': 'fred' });
     * // => 'hello fred!'
     *
     * // Use the HTML "escape" delimiter to escape data property values.
     * var compiled = _.template('<b><%- value %></b>');
     * compiled({ 'value': '<script>' });
     * // => '<b>&lt;script&gt;</b>'
     *
     * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the internal `print` function in "evaluate" delimiters.
     * var compiled = _.template('<% print("hello " + user); %>!');
     * compiled({ 'user': 'barney' });
     * // => 'hello barney!'
     *
     * // Use the ES template literal delimiter as an "interpolate" delimiter.
     * // Disable support by replacing the "interpolate" delimiter.
     * var compiled = _.template('hello ${ user }!');
     * compiled({ 'user': 'pebbles' });
     * // => 'hello pebbles!'
     *
     * // Use backslashes to treat delimiters as plain text.
     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
     * compiled({ 'value': 'ignored' });
     * // => '<%- value %>'
     *
     * // Use the `imports` option to import `jQuery` as `jq`.
     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the `sourceURL` option to specify a custom sourceURL for the template.
     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
     * compiled(data);
     * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
     *
     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
     * compiled.source;
     * // => function(data) {
     * //   var __t, __p = '';
     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
     * //   return __p;
     * // }
     *
     * // Use custom template delimiters.
     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
     * var compiled = _.template('hello {{ user }}!');
     * compiled({ 'user': 'mustache' });
     * // => 'hello mustache!'
     *
     * // Use the `source` property to inline compiled templates for meaningful
     * // line numbers in error messages and stack traces.
     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
     *   var JST = {\
     *     "main": ' + _.template(mainText).source + '\
     *   };\
     * ');
     */
    function template(string, options, guard) {
      // Based on John Resig's `tmpl` implementation
      // (http://ejohn.org/blog/javascript-micro-templating/)
      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
      var settings = lodash.templateSettings;

      if (guard && isIterateeCall(string, options, guard)) {
        options = undefined;
      }
      string = toString(string);
      options = assignInWith({}, options, settings, customDefaultsAssignIn);

      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
          importsKeys = keys(imports),
          importsValues = baseValues(imports, importsKeys);

      var isEscaping,
          isEvaluating,
          index = 0,
          interpolate = options.interpolate || reNoMatch,
          source = "__p += '";

      // Compile the regexp to match each delimiter.
      var reDelimiters = RegExp(
        (options.escape || reNoMatch).source + '|' +
        interpolate.source + '|' +
        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
        (options.evaluate || reNoMatch).source + '|$'
      , 'g');

      // Use a sourceURL for easier debugging.
      var sourceURL = '//# sourceURL=' +
        ('sourceURL' in options
          ? options.sourceURL
          : ('lodash.templateSources[' + (++templateCounter) + ']')
        ) + '\n';

      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
        interpolateValue || (interpolateValue = esTemplateValue);

        // Escape characters that can't be included in string literals.
        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);

        // Replace delimiters with snippets.
        if (escapeValue) {
          isEscaping = true;
          source += "' +\n__e(" + escapeValue + ") +\n'";
        }
        if (evaluateValue) {
          isEvaluating = true;
          source += "';\n" + evaluateValue + ";\n__p += '";
        }
        if (interpolateValue) {
          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
        }
        index = offset + match.length;

        // The JS engine embedded in Adobe products needs `match` returned in
        // order to produce the correct `offset` value.
        return match;
      });

      source += "';\n";

      // If `variable` is not specified wrap a with-statement around the generated
      // code to add the data object to the top of the scope chain.
      var variable = options.variable;
      if (!variable) {
        source = 'with (obj) {\n' + source + '\n}\n';
      }
      // Cleanup code by stripping empty strings.
      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
        .replace(reEmptyStringMiddle, '$1')
        .replace(reEmptyStringTrailing, '$1;');

      // Frame code as the function body.
      source = 'function(' + (variable || 'obj') + ') {\n' +
        (variable
          ? ''
          : 'obj || (obj = {});\n'
        ) +
        "var __t, __p = ''" +
        (isEscaping
           ? ', __e = _.escape'
           : ''
        ) +
        (isEvaluating
          ? ', __j = Array.prototype.join;\n' +
            "function print() { __p += __j.call(arguments, '') }\n"
          : ';\n'
        ) +
        source +
        'return __p\n}';

      var result = attempt(function() {
        return Function(importsKeys, sourceURL + 'return ' + source)
          .apply(undefined, importsValues);
      });

      // Provide the compiled function's source by its `toString` method or
      // the `source` property as a convenience for inlining compiled templates.
      result.source = source;
      if (isError(result)) {
        throw result;
      }
      return result;
    }

    /**
     * Converts `string`, as a whole, to lower case just like
     * [String#toLowerCase](https://mdn.io/toLowerCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.toLower('--Foo-Bar--');
     * // => '--foo-bar--'
     *
     * _.toLower('fooBar');
     * // => 'foobar'
     *
     * _.toLower('__FOO_BAR__');
     * // => '__foo_bar__'
     */
    function toLower(value) {
      return toString(value).toLowerCase();
    }

    /**
     * Converts `string`, as a whole, to upper case just like
     * [String#toUpperCase](https://mdn.io/toUpperCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.toUpper('--foo-bar--');
     * // => '--FOO-BAR--'
     *
     * _.toUpper('fooBar');
     * // => 'FOOBAR'
     *
     * _.toUpper('__foo_bar__');
     * // => '__FOO_BAR__'
     */
    function toUpper(value) {
      return toString(value).toUpperCase();
    }

    /**
     * Removes leading and trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trim('  abc  ');
     * // => 'abc'
     *
     * _.trim('-_-abc-_-', '_-');
     * // => 'abc'
     *
     * _.map(['  foo  ', '  bar  '], _.trim);
     * // => ['foo', 'bar']
     */
    function trim(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrim, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          chrSymbols = stringToArray(chars),
          start = charsStartIndex(strSymbols, chrSymbols),
          end = charsEndIndex(strSymbols, chrSymbols) + 1;

      return castSlice(strSymbols, start, end).join('');
    }

    /**
     * Removes trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimEnd('  abc  ');
     * // => '  abc'
     *
     * _.trimEnd('-_-abc-_-', '_-');
     * // => '-_-abc'
     */
    function trimEnd(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrimEnd, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;

      return castSlice(strSymbols, 0, end).join('');
    }

    /**
     * Removes leading whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimStart('  abc  ');
     * // => 'abc  '
     *
     * _.trimStart('-_-abc-_-', '_-');
     * // => 'abc-_-'
     */
    function trimStart(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrimStart, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          start = charsStartIndex(strSymbols, stringToArray(chars));

      return castSlice(strSymbols, start).join('');
    }

    /**
     * Truncates `string` if it's longer than the given maximum string length.
     * The last characters of the truncated string are replaced with the omission
     * string which defaults to "...".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to truncate.
     * @param {Object} [options={}] The options object.
     * @param {number} [options.length=30] The maximum string length.
     * @param {string} [options.omission='...'] The string to indicate text is omitted.
     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
     * @returns {string} Returns the truncated string.
     * @example
     *
     * _.truncate('hi-diddly-ho there, neighborino');
     * // => 'hi-diddly-ho there, neighbo...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': ' '
     * });
     * // => 'hi-diddly-ho there,...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': /,? +/
     * });
     * // => 'hi-diddly-ho there...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'omission': ' [...]'
     * });
     * // => 'hi-diddly-ho there, neig [...]'
     */
    function truncate(string, options) {
      var length = DEFAULT_TRUNC_LENGTH,
          omission = DEFAULT_TRUNC_OMISSION;

      if (isObject(options)) {
        var separator = 'separator' in options ? options.separator : separator;
        length = 'length' in options ? toInteger(options.length) : length;
        omission = 'omission' in options ? baseToString(options.omission) : omission;
      }
      string = toString(string);

      var strLength = string.length;
      if (hasUnicode(string)) {
        var strSymbols = stringToArray(string);
        strLength = strSymbols.length;
      }
      if (length >= strLength) {
        return string;
      }
      var end = length - stringSize(omission);
      if (end < 1) {
        return omission;
      }
      var result = strSymbols
        ? castSlice(strSymbols, 0, end).join('')
        : string.slice(0, end);

      if (separator === undefined) {
        return result + omission;
      }
      if (strSymbols) {
        end += (result.length - end);
      }
      if (isRegExp(separator)) {
        if (string.slice(end).search(separator)) {
          var match,
              substring = result;

          if (!separator.global) {
            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
          }
          separator.lastIndex = 0;
          while ((match = separator.exec(substring))) {
            var newEnd = match.index;
          }
          result = result.slice(0, newEnd === undefined ? end : newEnd);
        }
      } else if (string.indexOf(baseToString(separator), end) != end) {
        var index = result.lastIndexOf(separator);
        if (index > -1) {
          result = result.slice(0, index);
        }
      }
      return result + omission;
    }

    /**
     * The inverse of `_.escape`; this method converts the HTML entities
     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
     * their corresponding characters.
     *
     * **Note:** No other HTML entities are unescaped. To unescape additional
     * HTML entities use a third-party library like [_he_](https://mths.be/he).
     *
     * @static
     * @memberOf _
     * @since 0.6.0
     * @category String
     * @param {string} [string=''] The string to unescape.
     * @returns {string} Returns the unescaped string.
     * @example
     *
     * _.unescape('fred, barney, &amp; pebbles');
     * // => 'fred, barney, & pebbles'
     */
    function unescape(string) {
      string = toString(string);
      return (string && reHasEscapedHtml.test(string))
        ? string.replace(reEscapedHtml, unescapeHtmlChar)
        : string;
    }

    /**
     * Converts `string`, as space separated words, to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.upperCase('--foo-bar');
     * // => 'FOO BAR'
     *
     * _.upperCase('fooBar');
     * // => 'FOO BAR'
     *
     * _.upperCase('__foo_bar__');
     * // => 'FOO BAR'
     */
    var upperCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toUpperCase();
    });

    /**
     * Converts the first character of `string` to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.upperFirst('fred');
     * // => 'Fred'
     *
     * _.upperFirst('FRED');
     * // => 'FRED'
     */
    var upperFirst = createCaseFirst('toUpperCase');

    /**
     * Splits `string` into an array of its words.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {RegExp|string} [pattern] The pattern to match words.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the words of `string`.
     * @example
     *
     * _.words('fred, barney, & pebbles');
     * // => ['fred', 'barney', 'pebbles']
     *
     * _.words('fred, barney, & pebbles', /[^, ]+/g);
     * // => ['fred', 'barney', '&', 'pebbles']
     */
    function words(string, pattern, guard) {
      string = toString(string);
      pattern = guard ? undefined : pattern;

      if (pattern === undefined) {
        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
      }
      return string.match(pattern) || [];
    }

    /*------------------------------------------------------------------------*/

    /**
     * Attempts to invoke `func`, returning either the result or the caught error
     * object. Any additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Function} func The function to attempt.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {*} Returns the `func` result or error object.
     * @example
     *
     * // Avoid throwing errors for invalid selectors.
     * var elements = _.attempt(function(selector) {
     *   return document.querySelectorAll(selector);
     * }, '>_>');
     *
     * if (_.isError(elements)) {
     *   elements = [];
     * }
     */
    var attempt = baseRest(function(func, args) {
      try {
        return apply(func, undefined, args);
      } catch (e) {
        return isError(e) ? e : new Error(e);
      }
    });

    /**
     * Binds methods of an object to the object itself, overwriting the existing
     * method.
     *
     * **Note:** This method doesn't set the "length" property of bound functions.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Object} object The object to bind and assign the bound methods to.
     * @param {...(string|string[])} methodNames The object method names to bind.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var view = {
     *   'label': 'docs',
     *   'click': function() {
     *     console.log('clicked ' + this.label);
     *   }
     * };
     *
     * _.bindAll(view, ['click']);
     * jQuery(element).on('click', view.click);
     * // => Logs 'clicked docs' when clicked.
     */
    var bindAll = flatRest(function(object, methodNames) {
      arrayEach(methodNames, function(key) {
        key = toKey(key);
        baseAssignValue(object, key, bind(object[key], object));
      });
      return object;
    });

    /**
     * Creates a function that iterates over `pairs` and invokes the corresponding
     * function of the first predicate to return truthy. The predicate-function
     * pairs are invoked with the `this` binding and arguments of the created
     * function.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Array} pairs The predicate-function pairs.
     * @returns {Function} Returns the new composite function.
     * @example
     *
     * var func = _.cond([
     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
     *   [_.stubTrue,                      _.constant('no match')]
     * ]);
     *
     * func({ 'a': 1, 'b': 2 });
     * // => 'matches A'
     *
     * func({ 'a': 0, 'b': 1 });
     * // => 'matches B'
     *
     * func({ 'a': '1', 'b': '2' });
     * // => 'no match'
     */
    function cond(pairs) {
      var length = pairs == null ? 0 : pairs.length,
          toIteratee = getIteratee();

      pairs = !length ? [] : arrayMap(pairs, function(pair) {
        if (typeof pair[1] != 'function') {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
        return [toIteratee(pair[0]), pair[1]];
      });

      return baseRest(function(args) {
        var index = -1;
        while (++index < length) {
          var pair = pairs[index];
          if (apply(pair[0], this, args)) {
            return apply(pair[1], this, args);
          }
        }
      });
    }

    /**
     * Creates a function that invokes the predicate properties of `source` with
     * the corresponding property values of a given object, returning `true` if
     * all predicates return truthy, else `false`.
     *
     * **Note:** The created function is equivalent to `_.conformsTo` with
     * `source` partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 2, 'b': 1 },
     *   { 'a': 1, 'b': 2 }
     * ];
     *
     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
     * // => [{ 'a': 1, 'b': 2 }]
     */
    function conforms(source) {
      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that returns `value`.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {*} value The value to return from the new function.
     * @returns {Function} Returns the new constant function.
     * @example
     *
     * var objects = _.times(2, _.constant({ 'a': 1 }));
     *
     * console.log(objects);
     * // => [{ 'a': 1 }, { 'a': 1 }]
     *
     * console.log(objects[0] === objects[1]);
     * // => true
     */
    function constant(value) {
      return function() {
        return value;
      };
    }

    /**
     * Checks `value` to determine whether a default value should be returned in
     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
     * or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Util
     * @param {*} value The value to check.
     * @param {*} defaultValue The default value.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * _.defaultTo(1, 10);
     * // => 1
     *
     * _.defaultTo(undefined, 10);
     * // => 10
     */
    function defaultTo(value, defaultValue) {
      return (value == null || value !== value) ? defaultValue : value;
    }

    /**
     * Creates a function that returns the result of invoking the given functions
     * with the `this` binding of the created function, where each successive
     * invocation is supplied the return value of the previous.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flowRight
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flow([_.add, square]);
     * addSquare(1, 2);
     * // => 9
     */
    var flow = createFlow();

    /**
     * This method is like `_.flow` except that it creates a function that
     * invokes the given functions from right to left.
     *
     * @static
     * @since 3.0.0
     * @memberOf _
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flow
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flowRight([square, _.add]);
     * addSquare(1, 2);
     * // => 9
     */
    var flowRight = createFlow(true);

    /**
     * This method returns the first argument it receives.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {*} value Any value.
     * @returns {*} Returns `value`.
     * @example
     *
     * var object = { 'a': 1 };
     *
     * console.log(_.identity(object) === object);
     * // => true
     */
    function identity(value) {
      return value;
    }

    /**
     * Creates a function that invokes `func` with the arguments of the created
     * function. If `func` is a property name, the created function returns the
     * property value for a given element. If `func` is an array or object, the
     * created function returns `true` for elements that contain the equivalent
     * source properties, otherwise it returns `false`.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Util
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @returns {Function} Returns the callback.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, _.iteratee(['user', 'fred']));
     * // => [{ 'user': 'fred', 'age': 40 }]
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, _.iteratee('user'));
     * // => ['barney', 'fred']
     *
     * // Create custom iteratee shorthands.
     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
     *     return func.test(string);
     *   };
     * });
     *
     * _.filter(['abc', 'def'], /ef/);
     * // => ['def']
     */
    function iteratee(func) {
      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between a given
     * object and `source`, returning `true` if the given object has equivalent
     * property values, else `false`.
     *
     * **Note:** The created function is equivalent to `_.isMatch` with `source`
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
     */
    function matches(source) {
      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between the
     * value at `path` of a given object to `srcValue`, returning `true` if the
     * object value is equivalent, else `false`.
     *
     * **Note:** Partial comparisons will match empty array and empty object
     * `srcValue` values against any array or object value, respectively. See
     * `_.isEqual` for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.find(objects, _.matchesProperty('a', 4));
     * // => { 'a': 4, 'b': 5, 'c': 6 }
     */
    function matchesProperty(path, srcValue) {
      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that invokes the method at `path` of a given object.
     * Any additional arguments are provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': _.constant(2) } },
     *   { 'a': { 'b': _.constant(1) } }
     * ];
     *
     * _.map(objects, _.method('a.b'));
     * // => [2, 1]
     *
     * _.map(objects, _.method(['a', 'b']));
     * // => [2, 1]
     */
    var method = baseRest(function(path, args) {
      return function(object) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * The opposite of `_.method`; this method creates a function that invokes
     * the method at a given path of `object`. Any additional arguments are
     * provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Object} object The object to query.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var array = _.times(3, _.constant),
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
     * // => [2, 0]
     */
    var methodOf = baseRest(function(object, args) {
      return function(path) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * Adds all own enumerable string keyed function properties of a source
     * object to the destination object. If `object` is a function, then methods
     * are added to its prototype as well.
     *
     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
     * avoid conflicts caused by modifying the original.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Function|Object} [object=lodash] The destination object.
     * @param {Object} source The object of functions to add.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
     * @returns {Function|Object} Returns `object`.
     * @example
     *
     * function vowels(string) {
     *   return _.filter(string, function(v) {
     *     return /[aeiou]/i.test(v);
     *   });
     * }
     *
     * _.mixin({ 'vowels': vowels });
     * _.vowels('fred');
     * // => ['e']
     *
     * _('fred').vowels().value();
     * // => ['e']
     *
     * _.mixin({ 'vowels': vowels }, { 'chain': false });
     * _('fred').vowels();
     * // => ['e']
     */
    function mixin(object, source, options) {
      var props = keys(source),
          methodNames = baseFunctions(source, props);

      if (options == null &&
          !(isObject(source) && (methodNames.length || !props.length))) {
        options = source;
        source = object;
        object = this;
        methodNames = baseFunctions(source, keys(source));
      }
      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
          isFunc = isFunction(object);

      arrayEach(methodNames, function(methodName) {
        var func = source[methodName];
        object[methodName] = func;
        if (isFunc) {
          object.prototype[methodName] = function() {
            var chainAll = this.__chain__;
            if (chain || chainAll) {
              var result = object(this.__wrapped__),
                  actions = result.__actions__ = copyArray(this.__actions__);

              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
              result.__chain__ = chainAll;
              return result;
            }
            return func.apply(object, arrayPush([this.value()], arguments));
          };
        }
      });

      return object;
    }

    /**
     * Reverts the `_` variable to its previous value and returns a reference to
     * the `lodash` function.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @returns {Function} Returns the `lodash` function.
     * @example
     *
     * var lodash = _.noConflict();
     */
    function noConflict() {
      if (root._ === this) {
        root._ = oldDash;
      }
      return this;
    }

    /**
     * This method returns `undefined`.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Util
     * @example
     *
     * _.times(2, _.noop);
     * // => [undefined, undefined]
     */
    function noop() {
      // No operation performed.
    }

    /**
     * Creates a function that gets the argument at index `n`. If `n` is negative,
     * the nth argument from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [n=0] The index of the argument to return.
     * @returns {Function} Returns the new pass-thru function.
     * @example
     *
     * var func = _.nthArg(1);
     * func('a', 'b', 'c', 'd');
     * // => 'b'
     *
     * var func = _.nthArg(-2);
     * func('a', 'b', 'c', 'd');
     * // => 'c'
     */
    function nthArg(n) {
      n = toInteger(n);
      return baseRest(function(args) {
        return baseNth(args, n);
      });
    }

    /**
     * Creates a function that invokes `iteratees` with the arguments it receives
     * and returns their results.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.over([Math.max, Math.min]);
     *
     * func(1, 2, 3, 4);
     * // => [4, 1]
     */
    var over = createOver(arrayMap);

    /**
     * Creates a function that checks if **all** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overEvery([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => false
     *
     * func(NaN);
     * // => false
     */
    var overEvery = createOver(arrayEvery);

    /**
     * Creates a function that checks if **any** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overSome([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => true
     *
     * func(NaN);
     * // => false
     */
    var overSome = createOver(arraySome);

    /**
     * Creates a function that returns the value at `path` of a given object.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': 2 } },
     *   { 'a': { 'b': 1 } }
     * ];
     *
     * _.map(objects, _.property('a.b'));
     * // => [2, 1]
     *
     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
     * // => [1, 2]
     */
    function property(path) {
      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
    }

    /**
     * The opposite of `_.property`; this method creates a function that returns
     * the value at a given path of `object`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} object The object to query.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var array = [0, 1, 2],
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
     * // => [2, 0]
     */
    function propertyOf(object) {
      return function(path) {
        return object == null ? undefined : baseGet(object, path);
      };
    }

    /**
     * Creates an array of numbers (positive and/or negative) progressing from
     * `start` up to, but not including, `end`. A step of `-1` is used if a negative
     * `start` is specified without an `end` or `step`. If `end` is not specified,
     * it's set to `start` with `start` then set to `0`.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.rangeRight
     * @example
     *
     * _.range(4);
     * // => [0, 1, 2, 3]
     *
     * _.range(-4);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 5);
     * // => [1, 2, 3, 4]
     *
     * _.range(0, 20, 5);
     * // => [0, 5, 10, 15]
     *
     * _.range(0, -4, -1);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.range(0);
     * // => []
     */
    var range = createRange();

    /**
     * This method is like `_.range` except that it populates values in
     * descending order.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.range
     * @example
     *
     * _.rangeRight(4);
     * // => [3, 2, 1, 0]
     *
     * _.rangeRight(-4);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 5);
     * // => [4, 3, 2, 1]
     *
     * _.rangeRight(0, 20, 5);
     * // => [15, 10, 5, 0]
     *
     * _.rangeRight(0, -4, -1);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.rangeRight(0);
     * // => []
     */
    var rangeRight = createRange(true);

    /**
     * This method returns a new empty array.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Array} Returns the new empty array.
     * @example
     *
     * var arrays = _.times(2, _.stubArray);
     *
     * console.log(arrays);
     * // => [[], []]
     *
     * console.log(arrays[0] === arrays[1]);
     * // => false
     */
    function stubArray() {
      return [];
    }

    /**
     * This method returns `false`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `false`.
     * @example
     *
     * _.times(2, _.stubFalse);
     * // => [false, false]
     */
    function stubFalse() {
      return false;
    }

    /**
     * This method returns a new empty object.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Object} Returns the new empty object.
     * @example
     *
     * var objects = _.times(2, _.stubObject);
     *
     * console.log(objects);
     * // => [{}, {}]
     *
     * console.log(objects[0] === objects[1]);
     * // => false
     */
    function stubObject() {
      return {};
    }

    /**
     * This method returns an empty string.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {string} Returns the empty string.
     * @example
     *
     * _.times(2, _.stubString);
     * // => ['', '']
     */
    function stubString() {
      return '';
    }

    /**
     * This method returns `true`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `true`.
     * @example
     *
     * _.times(2, _.stubTrue);
     * // => [true, true]
     */
    function stubTrue() {
      return true;
    }

    /**
     * Invokes the iteratee `n` times, returning an array of the results of
     * each invocation. The iteratee is invoked with one argument; (index).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} n The number of times to invoke `iteratee`.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.times(3, String);
     * // => ['0', '1', '2']
     *
     *  _.times(4, _.constant(0));
     * // => [0, 0, 0, 0]
     */
    function times(n, iteratee) {
      n = toInteger(n);
      if (n < 1 || n > MAX_SAFE_INTEGER) {
        return [];
      }
      var index = MAX_ARRAY_LENGTH,
          length = nativeMin(n, MAX_ARRAY_LENGTH);

      iteratee = getIteratee(iteratee);
      n -= MAX_ARRAY_LENGTH;

      var result = baseTimes(length, iteratee);
      while (++index < n) {
        iteratee(index);
      }
      return result;
    }

    /**
     * Converts `value` to a property path array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {*} value The value to convert.
     * @returns {Array} Returns the new property path array.
     * @example
     *
     * _.toPath('a.b.c');
     * // => ['a', 'b', 'c']
     *
     * _.toPath('a[0].b.c');
     * // => ['a', '0', 'b', 'c']
     */
    function toPath(value) {
      if (isArray(value)) {
        return arrayMap(value, toKey);
      }
      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
    }

    /**
     * Generates a unique ID. If `prefix` is given, the ID is appended to it.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {string} [prefix=''] The value to prefix the ID with.
     * @returns {string} Returns the unique ID.
     * @example
     *
     * _.uniqueId('contact_');
     * // => 'contact_104'
     *
     * _.uniqueId();
     * // => '105'
     */
    function uniqueId(prefix) {
      var id = ++idCounter;
      return toString(prefix) + id;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Adds two numbers.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {number} augend The first number in an addition.
     * @param {number} addend The second number in an addition.
     * @returns {number} Returns the total.
     * @example
     *
     * _.add(6, 4);
     * // => 10
     */
    var add = createMathOperation(function(augend, addend) {
      return augend + addend;
    }, 0);

    /**
     * Computes `number` rounded up to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round up.
     * @param {number} [precision=0] The precision to round up to.
     * @returns {number} Returns the rounded up number.
     * @example
     *
     * _.ceil(4.006);
     * // => 5
     *
     * _.ceil(6.004, 2);
     * // => 6.01
     *
     * _.ceil(6040, -2);
     * // => 6100
     */
    var ceil = createRound('ceil');

    /**
     * Divide two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} dividend The first number in a division.
     * @param {number} divisor The second number in a division.
     * @returns {number} Returns the quotient.
     * @example
     *
     * _.divide(6, 4);
     * // => 1.5
     */
    var divide = createMathOperation(function(dividend, divisor) {
      return dividend / divisor;
    }, 1);

    /**
     * Computes `number` rounded down to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round down.
     * @param {number} [precision=0] The precision to round down to.
     * @returns {number} Returns the rounded down number.
     * @example
     *
     * _.floor(4.006);
     * // => 4
     *
     * _.floor(0.046, 2);
     * // => 0.04
     *
     * _.floor(4060, -2);
     * // => 4000
     */
    var floor = createRound('floor');

    /**
     * Computes the maximum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * _.max([4, 2, 8, 6]);
     * // => 8
     *
     * _.max([]);
     * // => undefined
     */
    function max(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseGt)
        : undefined;
    }

    /**
     * This method is like `_.max` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.maxBy(objects, function(o) { return o.n; });
     * // => { 'n': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.maxBy(objects, 'n');
     * // => { 'n': 2 }
     */
    function maxBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
        : undefined;
    }

    /**
     * Computes the mean of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the mean.
     * @example
     *
     * _.mean([4, 2, 8, 6]);
     * // => 5
     */
    function mean(array) {
      return baseMean(array, identity);
    }

    /**
     * This method is like `_.mean` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be averaged.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the mean.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.meanBy(objects, function(o) { return o.n; });
     * // => 5
     *
     * // The `_.property` iteratee shorthand.
     * _.meanBy(objects, 'n');
     * // => 5
     */
    function meanBy(array, iteratee) {
      return baseMean(array, getIteratee(iteratee, 2));
    }

    /**
     * Computes the minimum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * _.min([4, 2, 8, 6]);
     * // => 2
     *
     * _.min([]);
     * // => undefined
     */
    function min(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseLt)
        : undefined;
    }

    /**
     * This method is like `_.min` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.minBy(objects, function(o) { return o.n; });
     * // => { 'n': 1 }
     *
     * // The `_.property` iteratee shorthand.
     * _.minBy(objects, 'n');
     * // => { 'n': 1 }
     */
    function minBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
        : undefined;
    }

    /**
     * Multiply two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} multiplier The first number in a multiplication.
     * @param {number} multiplicand The second number in a multiplication.
     * @returns {number} Returns the product.
     * @example
     *
     * _.multiply(6, 4);
     * // => 24
     */
    var multiply = createMathOperation(function(multiplier, multiplicand) {
      return multiplier * multiplicand;
    }, 1);

    /**
     * Computes `number` rounded to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round.
     * @param {number} [precision=0] The precision to round to.
     * @returns {number} Returns the rounded number.
     * @example
     *
     * _.round(4.006);
     * // => 4
     *
     * _.round(4.006, 2);
     * // => 4.01
     *
     * _.round(4060, -2);
     * // => 4100
     */
    var round = createRound('round');

    /**
     * Subtract two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {number} minuend The first number in a subtraction.
     * @param {number} subtrahend The second number in a subtraction.
     * @returns {number} Returns the difference.
     * @example
     *
     * _.subtract(6, 4);
     * // => 2
     */
    var subtract = createMathOperation(function(minuend, subtrahend) {
      return minuend - subtrahend;
    }, 0);

    /**
     * Computes the sum of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.sum([4, 2, 8, 6]);
     * // => 20
     */
    function sum(array) {
      return (array && array.length)
        ? baseSum(array, identity)
        : 0;
    }

    /**
     * This method is like `_.sum` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be summed.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the sum.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.sumBy(objects, function(o) { return o.n; });
     * // => 20
     *
     * // The `_.property` iteratee shorthand.
     * _.sumBy(objects, 'n');
     * // => 20
     */
    function sumBy(array, iteratee) {
      return (array && array.length)
        ? baseSum(array, getIteratee(iteratee, 2))
        : 0;
    }

    /*------------------------------------------------------------------------*/

    // Add methods that return wrapped values in chain sequences.
    lodash.after = after;
    lodash.ary = ary;
    lodash.assign = assign;
    lodash.assignIn = assignIn;
    lodash.assignInWith = assignInWith;
    lodash.assignWith = assignWith;
    lodash.at = at;
    lodash.before = before;
    lodash.bind = bind;
    lodash.bindAll = bindAll;
    lodash.bindKey = bindKey;
    lodash.castArray = castArray;
    lodash.chain = chain;
    lodash.chunk = chunk;
    lodash.compact = compact;
    lodash.concat = concat;
    lodash.cond = cond;
    lodash.conforms = conforms;
    lodash.constant = constant;
    lodash.countBy = countBy;
    lodash.create = create;
    lodash.curry = curry;
    lodash.curryRight = curryRight;
    lodash.debounce = debounce;
    lodash.defaults = defaults;
    lodash.defaultsDeep = defaultsDeep;
    lodash.defer = defer;
    lodash.delay = delay;
    lodash.difference = difference;
    lodash.differenceBy = differenceBy;
    lodash.differenceWith = differenceWith;
    lodash.drop = drop;
    lodash.dropRight = dropRight;
    lodash.dropRightWhile = dropRightWhile;
    lodash.dropWhile = dropWhile;
    lodash.fill = fill;
    lodash.filter = filter;
    lodash.flatMap = flatMap;
    lodash.flatMapDeep = flatMapDeep;
    lodash.flatMapDepth = flatMapDepth;
    lodash.flatten = flatten;
    lodash.flattenDeep = flattenDeep;
    lodash.flattenDepth = flattenDepth;
    lodash.flip = flip;
    lodash.flow = flow;
    lodash.flowRight = flowRight;
    lodash.fromPairs = fromPairs;
    lodash.functions = functions;
    lodash.functionsIn = functionsIn;
    lodash.groupBy = groupBy;
    lodash.initial = initial;
    lodash.intersection = intersection;
    lodash.intersectionBy = intersectionBy;
    lodash.intersectionWith = intersectionWith;
    lodash.invert = invert;
    lodash.invertBy = invertBy;
    lodash.invokeMap = invokeMap;
    lodash.iteratee = iteratee;
    lodash.keyBy = keyBy;
    lodash.keys = keys;
    lodash.keysIn = keysIn;
    lodash.map = map;
    lodash.mapKeys = mapKeys;
    lodash.mapValues = mapValues;
    lodash.matches = matches;
    lodash.matchesProperty = matchesProperty;
    lodash.memoize = memoize;
    lodash.merge = merge;
    lodash.mergeWith = mergeWith;
    lodash.method = method;
    lodash.methodOf = methodOf;
    lodash.mixin = mixin;
    lodash.negate = negate;
    lodash.nthArg = nthArg;
    lodash.omit = omit;
    lodash.omitBy = omitBy;
    lodash.once = once;
    lodash.orderBy = orderBy;
    lodash.over = over;
    lodash.overArgs = overArgs;
    lodash.overEvery = overEvery;
    lodash.overSome = overSome;
    lodash.partial = partial;
    lodash.partialRight = partialRight;
    lodash.partition = partition;
    lodash.pick = pick;
    lodash.pickBy = pickBy;
    lodash.property = property;
    lodash.propertyOf = propertyOf;
    lodash.pull = pull;
    lodash.pullAll = pullAll;
    lodash.pullAllBy = pullAllBy;
    lodash.pullAllWith = pullAllWith;
    lodash.pullAt = pullAt;
    lodash.range = range;
    lodash.rangeRight = rangeRight;
    lodash.rearg = rearg;
    lodash.reject = reject;
    lodash.remove = remove;
    lodash.rest = rest;
    lodash.reverse = reverse;
    lodash.sampleSize = sampleSize;
    lodash.set = set;
    lodash.setWith = setWith;
    lodash.shuffle = shuffle;
    lodash.slice = slice;
    lodash.sortBy = sortBy;
    lodash.sortedUniq = sortedUniq;
    lodash.sortedUniqBy = sortedUniqBy;
    lodash.split = split;
    lodash.spread = spread;
    lodash.tail = tail;
    lodash.take = take;
    lodash.takeRight = takeRight;
    lodash.takeRightWhile = takeRightWhile;
    lodash.takeWhile = takeWhile;
    lodash.tap = tap;
    lodash.throttle = throttle;
    lodash.thru = thru;
    lodash.toArray = toArray;
    lodash.toPairs = toPairs;
    lodash.toPairsIn = toPairsIn;
    lodash.toPath = toPath;
    lodash.toPlainObject = toPlainObject;
    lodash.transform = transform;
    lodash.unary = unary;
    lodash.union = union;
    lodash.unionBy = unionBy;
    lodash.unionWith = unionWith;
    lodash.uniq = uniq;
    lodash.uniqBy = uniqBy;
    lodash.uniqWith = uniqWith;
    lodash.unset = unset;
    lodash.unzip = unzip;
    lodash.unzipWith = unzipWith;
    lodash.update = update;
    lodash.updateWith = updateWith;
    lodash.values = values;
    lodash.valuesIn = valuesIn;
    lodash.without = without;
    lodash.words = words;
    lodash.wrap = wrap;
    lodash.xor = xor;
    lodash.xorBy = xorBy;
    lodash.xorWith = xorWith;
    lodash.zip = zip;
    lodash.zipObject = zipObject;
    lodash.zipObjectDeep = zipObjectDeep;
    lodash.zipWith = zipWith;

    // Add aliases.
    lodash.entries = toPairs;
    lodash.entriesIn = toPairsIn;
    lodash.extend = assignIn;
    lodash.extendWith = assignInWith;

    // Add methods to `lodash.prototype`.
    mixin(lodash, lodash);

    /*------------------------------------------------------------------------*/

    // Add methods that return unwrapped values in chain sequences.
    lodash.add = add;
    lodash.attempt = attempt;
    lodash.camelCase = camelCase;
    lodash.capitalize = capitalize;
    lodash.ceil = ceil;
    lodash.clamp = clamp;
    lodash.clone = clone;
    lodash.cloneDeep = cloneDeep;
    lodash.cloneDeepWith = cloneDeepWith;
    lodash.cloneWith = cloneWith;
    lodash.conformsTo = conformsTo;
    lodash.deburr = deburr;
    lodash.defaultTo = defaultTo;
    lodash.divide = divide;
    lodash.endsWith = endsWith;
    lodash.eq = eq;
    lodash.escape = escape;
    lodash.escapeRegExp = escapeRegExp;
    lodash.every = every;
    lodash.find = find;
    lodash.findIndex = findIndex;
    lodash.findKey = findKey;
    lodash.findLast = findLast;
    lodash.findLastIndex = findLastIndex;
    lodash.findLastKey = findLastKey;
    lodash.floor = floor;
    lodash.forEach = forEach;
    lodash.forEachRight = forEachRight;
    lodash.forIn = forIn;
    lodash.forInRight = forInRight;
    lodash.forOwn = forOwn;
    lodash.forOwnRight = forOwnRight;
    lodash.get = get;
    lodash.gt = gt;
    lodash.gte = gte;
    lodash.has = has;
    lodash.hasIn = hasIn;
    lodash.head = head;
    lodash.identity = identity;
    lodash.includes = includes;
    lodash.indexOf = indexOf;
    lodash.inRange = inRange;
    lodash.invoke = invoke;
    lodash.isArguments = isArguments;
    lodash.isArray = isArray;
    lodash.isArrayBuffer = isArrayBuffer;
    lodash.isArrayLike = isArrayLike;
    lodash.isArrayLikeObject = isArrayLikeObject;
    lodash.isBoolean = isBoolean;
    lodash.isBuffer = isBuffer;
    lodash.isDate = isDate;
    lodash.isElement = isElement;
    lodash.isEmpty = isEmpty;
    lodash.isEqual = isEqual;
    lodash.isEqualWith = isEqualWith;
    lodash.isError = isError;
    lodash.isFinite = isFinite;
    lodash.isFunction = isFunction;
    lodash.isInteger = isInteger;
    lodash.isLength = isLength;
    lodash.isMap = isMap;
    lodash.isMatch = isMatch;
    lodash.isMatchWith = isMatchWith;
    lodash.isNaN = isNaN;
    lodash.isNative = isNative;
    lodash.isNil = isNil;
    lodash.isNull = isNull;
    lodash.isNumber = isNumber;
    lodash.isObject = isObject;
    lodash.isObjectLike = isObjectLike;
    lodash.isPlainObject = isPlainObject;
    lodash.isRegExp = isRegExp;
    lodash.isSafeInteger = isSafeInteger;
    lodash.isSet = isSet;
    lodash.isString = isString;
    lodash.isSymbol = isSymbol;
    lodash.isTypedArray = isTypedArray;
    lodash.isUndefined = isUndefined;
    lodash.isWeakMap = isWeakMap;
    lodash.isWeakSet = isWeakSet;
    lodash.join = join;
    lodash.kebabCase = kebabCase;
    lodash.last = last;
    lodash.lastIndexOf = lastIndexOf;
    lodash.lowerCase = lowerCase;
    lodash.lowerFirst = lowerFirst;
    lodash.lt = lt;
    lodash.lte = lte;
    lodash.max = max;
    lodash.maxBy = maxBy;
    lodash.mean = mean;
    lodash.meanBy = meanBy;
    lodash.min = min;
    lodash.minBy = minBy;
    lodash.stubArray = stubArray;
    lodash.stubFalse = stubFalse;
    lodash.stubObject = stubObject;
    lodash.stubString = stubString;
    lodash.stubTrue = stubTrue;
    lodash.multiply = multiply;
    lodash.nth = nth;
    lodash.noConflict = noConflict;
    lodash.noop = noop;
    lodash.now = now;
    lodash.pad = pad;
    lodash.padEnd = padEnd;
    lodash.padStart = padStart;
    lodash.parseInt = parseInt;
    lodash.random = random;
    lodash.reduce = reduce;
    lodash.reduceRight = reduceRight;
    lodash.repeat = repeat;
    lodash.replace = replace;
    lodash.result = result;
    lodash.round = round;
    lodash.runInContext = runInContext;
    lodash.sample = sample;
    lodash.size = size;
    lodash.snakeCase = snakeCase;
    lodash.some = some;
    lodash.sortedIndex = sortedIndex;
    lodash.sortedIndexBy = sortedIndexBy;
    lodash.sortedIndexOf = sortedIndexOf;
    lodash.sortedLastIndex = sortedLastIndex;
    lodash.sortedLastIndexBy = sortedLastIndexBy;
    lodash.sortedLastIndexOf = sortedLastIndexOf;
    lodash.startCase = startCase;
    lodash.startsWith = startsWith;
    lodash.subtract = subtract;
    lodash.sum = sum;
    lodash.sumBy = sumBy;
    lodash.template = template;
    lodash.times = times;
    lodash.toFinite = toFinite;
    lodash.toInteger = toInteger;
    lodash.toLength = toLength;
    lodash.toLower = toLower;
    lodash.toNumber = toNumber;
    lodash.toSafeInteger = toSafeInteger;
    lodash.toString = toString;
    lodash.toUpper = toUpper;
    lodash.trim = trim;
    lodash.trimEnd = trimEnd;
    lodash.trimStart = trimStart;
    lodash.truncate = truncate;
    lodash.unescape = unescape;
    lodash.uniqueId = uniqueId;
    lodash.upperCase = upperCase;
    lodash.upperFirst = upperFirst;

    // Add aliases.
    lodash.each = forEach;
    lodash.eachRight = forEachRight;
    lodash.first = head;

    mixin(lodash, (function() {
      var source = {};
      baseForOwn(lodash, function(func, methodName) {
        if (!hasOwnProperty.call(lodash.prototype, methodName)) {
          source[methodName] = func;
        }
      });
      return source;
    }()), { 'chain': false });

    /*------------------------------------------------------------------------*/

    /**
     * The semantic version number.
     *
     * @static
     * @memberOf _
     * @type {string}
     */
    lodash.VERSION = VERSION;

    // Assign default placeholders.
    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
      lodash[methodName].placeholder = lodash;
    });

    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
    arrayEach(['drop', 'take'], function(methodName, index) {
      LazyWrapper.prototype[methodName] = function(n) {
        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);

        var result = (this.__filtered__ && !index)
          ? new LazyWrapper(this)
          : this.clone();

        if (result.__filtered__) {
          result.__takeCount__ = nativeMin(n, result.__takeCount__);
        } else {
          result.__views__.push({
            'size': nativeMin(n, MAX_ARRAY_LENGTH),
            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
          });
        }
        return result;
      };

      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
        return this.reverse()[methodName](n).reverse();
      };
    });

    // Add `LazyWrapper` methods that accept an `iteratee` value.
    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
      var type = index + 1,
          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;

      LazyWrapper.prototype[methodName] = function(iteratee) {
        var result = this.clone();
        result.__iteratees__.push({
          'iteratee': getIteratee(iteratee, 3),
          'type': type
        });
        result.__filtered__ = result.__filtered__ || isFilter;
        return result;
      };
    });

    // Add `LazyWrapper` methods for `_.head` and `_.last`.
    arrayEach(['head', 'last'], function(methodName, index) {
      var takeName = 'take' + (index ? 'Right' : '');

      LazyWrapper.prototype[methodName] = function() {
        return this[takeName](1).value()[0];
      };
    });

    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
    arrayEach(['initial', 'tail'], function(methodName, index) {
      var dropName = 'drop' + (index ? '' : 'Right');

      LazyWrapper.prototype[methodName] = function() {
        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
      };
    });

    LazyWrapper.prototype.compact = function() {
      return this.filter(identity);
    };

    LazyWrapper.prototype.find = function(predicate) {
      return this.filter(predicate).head();
    };

    LazyWrapper.prototype.findLast = function(predicate) {
      return this.reverse().find(predicate);
    };

    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
      if (typeof path == 'function') {
        return new LazyWrapper(this);
      }
      return this.map(function(value) {
        return baseInvoke(value, path, args);
      });
    });

    LazyWrapper.prototype.reject = function(predicate) {
      return this.filter(negate(getIteratee(predicate)));
    };

    LazyWrapper.prototype.slice = function(start, end) {
      start = toInteger(start);

      var result = this;
      if (result.__filtered__ && (start > 0 || end < 0)) {
        return new LazyWrapper(result);
      }
      if (start < 0) {
        result = result.takeRight(-start);
      } else if (start) {
        result = result.drop(start);
      }
      if (end !== undefined) {
        end = toInteger(end);
        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
      }
      return result;
    };

    LazyWrapper.prototype.takeRightWhile = function(predicate) {
      return this.reverse().takeWhile(predicate).reverse();
    };

    LazyWrapper.prototype.toArray = function() {
      return this.take(MAX_ARRAY_LENGTH);
    };

    // Add `LazyWrapper` methods to `lodash.prototype`.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
          isTaker = /^(?:head|last)$/.test(methodName),
          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
          retUnwrapped = isTaker || /^find/.test(methodName);

      if (!lodashFunc) {
        return;
      }
      lodash.prototype[methodName] = function() {
        var value = this.__wrapped__,
            args = isTaker ? [1] : arguments,
            isLazy = value instanceof LazyWrapper,
            iteratee = args[0],
            useLazy = isLazy || isArray(value);

        var interceptor = function(value) {
          var result = lodashFunc.apply(lodash, arrayPush([value], args));
          return (isTaker && chainAll) ? result[0] : result;
        };

        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
          // Avoid lazy use if the iteratee has a "length" value other than `1`.
          isLazy = useLazy = false;
        }
        var chainAll = this.__chain__,
            isHybrid = !!this.__actions__.length,
            isUnwrapped = retUnwrapped && !chainAll,
            onlyLazy = isLazy && !isHybrid;

        if (!retUnwrapped && useLazy) {
          value = onlyLazy ? value : new LazyWrapper(this);
          var result = func.apply(value, args);
          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
          return new LodashWrapper(result, chainAll);
        }
        if (isUnwrapped && onlyLazy) {
          return func.apply(this, args);
        }
        result = this.thru(interceptor);
        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
      };
    });

    // Add `Array` methods to `lodash.prototype`.
    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
      var func = arrayProto[methodName],
          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
          retUnwrapped = /^(?:pop|shift)$/.test(methodName);

      lodash.prototype[methodName] = function() {
        var args = arguments;
        if (retUnwrapped && !this.__chain__) {
          var value = this.value();
          return func.apply(isArray(value) ? value : [], args);
        }
        return this[chainName](function(value) {
          return func.apply(isArray(value) ? value : [], args);
        });
      };
    });

    // Map minified method names to their real names.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var lodashFunc = lodash[methodName];
      if (lodashFunc) {
        var key = (lodashFunc.name + ''),
            names = realNames[key] || (realNames[key] = []);

        names.push({ 'name': methodName, 'func': lodashFunc });
      }
    });

    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
      'name': 'wrapper',
      'func': undefined
    }];

    // Add methods to `LazyWrapper`.
    LazyWrapper.prototype.clone = lazyClone;
    LazyWrapper.prototype.reverse = lazyReverse;
    LazyWrapper.prototype.value = lazyValue;

    // Add chain sequence methods to the `lodash` wrapper.
    lodash.prototype.at = wrapperAt;
    lodash.prototype.chain = wrapperChain;
    lodash.prototype.commit = wrapperCommit;
    lodash.prototype.next = wrapperNext;
    lodash.prototype.plant = wrapperPlant;
    lodash.prototype.reverse = wrapperReverse;
    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;

    // Add lazy aliases.
    lodash.prototype.first = lodash.prototype.head;

    if (symIterator) {
      lodash.prototype[symIterator] = wrapperToIterator;
    }
    return lodash;
  });

  /*--------------------------------------------------------------------------*/

  // Export lodash.
  var _ = runInContext();

  // Some AMD build optimizers, like r.js, check for condition patterns like:
  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
    // Expose Lodash on the global object to prevent errors when Lodash is
    // loaded by a script tag in the presence of an AMD loader.
    // See http://requirejs.org/docs/errors.html#mismatch for more details.
    // Use `_.noConflict` to remove Lodash from the global object.
    root._ = _;

    // Define as an anonymous module so, through path mapping, it can be
    // referenced as the "underscore" module.
    define(function() {
      return _;
    });
  }
  // Check for `exports` after `define` in case a build optimizer adds it.
  else if (freeModule) {
    // Export for Node.js.
    (freeModule.exports = _)._ = _;
    // Export for CommonJS support.
    freeExports._ = _;
  }
  else {
    // Export to the global object.
    root._ = _;
  }
}.call(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],242:[function(require,module,exports){
/**
 * Special language-specific overrides.
 *
 * Source: ftp://ftp.unicode.org/Public/UCD/latest/ucd/SpecialCasing.txt
 *
 * @type {Object}
 */
var LANGUAGES = {
  tr: {
    regexp: /\u0130|\u0049|\u0049\u0307/g,
    map: {
      '\u0130': '\u0069',
      '\u0049': '\u0131',
      '\u0049\u0307': '\u0069'
    }
  },
  az: {
    regexp: /[\u0130]/g,
    map: {
      '\u0130': '\u0069',
      '\u0049': '\u0131',
      '\u0049\u0307': '\u0069'
    }
  },
  lt: {
    regexp: /[\u0049\u004A\u012E\u00CC\u00CD\u0128]/g,
    map: {
      '\u0049': '\u0069\u0307',
      '\u004A': '\u006A\u0307',
      '\u012E': '\u012F\u0307',
      '\u00CC': '\u0069\u0307\u0300',
      '\u00CD': '\u0069\u0307\u0301',
      '\u0128': '\u0069\u0307\u0303'
    }
  }
}

/**
 * Lowercase a string.
 *
 * @param  {String} str
 * @return {String}
 */
module.exports = function (str, locale) {
  var lang = LANGUAGES[locale]

  str = str == null ? '' : String(str)

  if (lang) {
    str = str.replace(lang.regexp, function (m) { return lang.map[m] })
  }

  return str.toLowerCase()
}

},{}],243:[function(require,module,exports){
module.exports = minimatch
minimatch.Minimatch = Minimatch

var path = { sep: '/' }
try {
  path = require('path')
} catch (er) {}

var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {}
var expand = require('brace-expansion')

var plTypes = {
  '!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
  '?': { open: '(?:', close: ')?' },
  '+': { open: '(?:', close: ')+' },
  '*': { open: '(?:', close: ')*' },
  '@': { open: '(?:', close: ')' }
}

// any single thing other than /
// don't need to escape / when using new RegExp()
var qmark = '[^/]'

// * => any number of characters
var star = qmark + '*?'

// ** when dots are allowed.  Anything goes, except .. and .
// not (^ or / followed by one or two dots followed by $ or /),
// followed by anything, any number of times.
var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?'

// not a ^ or / followed by a dot,
// followed by anything, any number of times.
var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?'

// characters that need to be escaped in RegExp.
var reSpecials = charSet('().*{}+?[]^$\\!')

// "abc" -> { a:true, b:true, c:true }
function charSet (s) {
  return s.split('').reduce(function (set, c) {
    set[c] = true
    return set
  }, {})
}

// normalizes slashes.
var slashSplit = /\/+/

minimatch.filter = filter
function filter (pattern, options) {
  options = options || {}
  return function (p, i, list) {
    return minimatch(p, pattern, options)
  }
}

function ext (a, b) {
  a = a || {}
  b = b || {}
  var t = {}
  Object.keys(b).forEach(function (k) {
    t[k] = b[k]
  })
  Object.keys(a).forEach(function (k) {
    t[k] = a[k]
  })
  return t
}

minimatch.defaults = function (def) {
  if (!def || !Object.keys(def).length) return minimatch

  var orig = minimatch

  var m = function minimatch (p, pattern, options) {
    return orig.minimatch(p, pattern, ext(def, options))
  }

  m.Minimatch = function Minimatch (pattern, options) {
    return new orig.Minimatch(pattern, ext(def, options))
  }

  return m
}

Minimatch.defaults = function (def) {
  if (!def || !Object.keys(def).length) return Minimatch
  return minimatch.defaults(def).Minimatch
}

function minimatch (p, pattern, options) {
  if (typeof pattern !== 'string') {
    throw new TypeError('glob pattern string required')
  }

  if (!options) options = {}

  // shortcut: comments match nothing.
  if (!options.nocomment && pattern.charAt(0) === '#') {
    return false
  }

  // "" only matches ""
  if (pattern.trim() === '') return p === ''

  return new Minimatch(pattern, options).match(p)
}

function Minimatch (pattern, options) {
  if (!(this instanceof Minimatch)) {
    return new Minimatch(pattern, options)
  }

  if (typeof pattern !== 'string') {
    throw new TypeError('glob pattern string required')
  }

  if (!options) options = {}
  pattern = pattern.trim()

  // windows support: need to use /, not \
  if (path.sep !== '/') {
    pattern = pattern.split(path.sep).join('/')
  }

  this.options = options
  this.set = []
  this.pattern = pattern
  this.regexp = null
  this.negate = false
  this.comment = false
  this.empty = false

  // make the set of regexps etc.
  this.make()
}

Minimatch.prototype.debug = function () {}

Minimatch.prototype.make = make
function make () {
  // don't do it more than once.
  if (this._made) return

  var pattern = this.pattern
  var options = this.options

  // empty patterns and comments match nothing.
  if (!options.nocomment && pattern.charAt(0) === '#') {
    this.comment = true
    return
  }
  if (!pattern) {
    this.empty = true
    return
  }

  // step 1: figure out negation, etc.
  this.parseNegate()

  // step 2: expand braces
  var set = this.globSet = this.braceExpand()

  if (options.debug) this.debug = console.error

  this.debug(this.pattern, set)

  // step 3: now we have a set, so turn each one into a series of path-portion
  // matching patterns.
  // These will be regexps, except in the case of "**", which is
  // set to the GLOBSTAR object for globstar behavior,
  // and will not contain any / characters
  set = this.globParts = set.map(function (s) {
    return s.split(slashSplit)
  })

  this.debug(this.pattern, set)

  // glob --> regexps
  set = set.map(function (s, si, set) {
    return s.map(this.parse, this)
  }, this)

  this.debug(this.pattern, set)

  // filter out everything that didn't compile properly.
  set = set.filter(function (s) {
    return s.indexOf(false) === -1
  })

  this.debug(this.pattern, set)

  this.set = set
}

Minimatch.prototype.parseNegate = parseNegate
function parseNegate () {
  var pattern = this.pattern
  var negate = false
  var options = this.options
  var negateOffset = 0

  if (options.nonegate) return

  for (var i = 0, l = pattern.length
    ; i < l && pattern.charAt(i) === '!'
    ; i++) {
    negate = !negate
    negateOffset++
  }

  if (negateOffset) this.pattern = pattern.substr(negateOffset)
  this.negate = negate
}

// Brace expansion:
// a{b,c}d -> abd acd
// a{b,}c -> abc ac
// a{0..3}d -> a0d a1d a2d a3d
// a{b,c{d,e}f}g -> abg acdfg acefg
// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
//
// Invalid sets are not expanded.
// a{2..}b -> a{2..}b
// a{b}c -> a{b}c
minimatch.braceExpand = function (pattern, options) {
  return braceExpand(pattern, options)
}

Minimatch.prototype.braceExpand = braceExpand

function braceExpand (pattern, options) {
  if (!options) {
    if (this instanceof Minimatch) {
      options = this.options
    } else {
      options = {}
    }
  }

  pattern = typeof pattern === 'undefined'
    ? this.pattern : pattern

  if (typeof pattern === 'undefined') {
    throw new TypeError('undefined pattern')
  }

  if (options.nobrace ||
    !pattern.match(/\{.*\}/)) {
    // shortcut. no need to expand.
    return [pattern]
  }

  return expand(pattern)
}

// parse a component of the expanded set.
// At this point, no pattern may contain "/" in it
// so we're going to return a 2d array, where each entry is the full
// pattern, split on '/', and then turned into a regular expression.
// A regexp is made at the end which joins each array with an
// escaped /, and another full one which joins each regexp with |.
//
// Following the lead of Bash 4.1, note that "**" only has special meaning
// when it is the *only* thing in a path portion.  Otherwise, any series
// of * is equivalent to a single *.  Globstar behavior is enabled by
// default, and can be disabled by setting options.noglobstar.
Minimatch.prototype.parse = parse
var SUBPARSE = {}
function parse (pattern, isSub) {
  if (pattern.length > 1024 * 64) {
    throw new TypeError('pattern is too long')
  }

  var options = this.options

  // shortcuts
  if (!options.noglobstar && pattern === '**') return GLOBSTAR
  if (pattern === '') return ''

  var re = ''
  var hasMagic = !!options.nocase
  var escaping = false
  // ? => one single character
  var patternListStack = []
  var negativeLists = []
  var stateChar
  var inClass = false
  var reClassStart = -1
  var classStart = -1
  // . and .. never match anything that doesn't start with .,
  // even when options.dot is set.
  var patternStart = pattern.charAt(0) === '.' ? '' // anything
  // not (start or / followed by . or .. followed by / or end)
  : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
  : '(?!\\.)'
  var self = this

  function clearStateChar () {
    if (stateChar) {
      // we had some state-tracking character
      // that wasn't consumed by this pass.
      switch (stateChar) {
        case '*':
          re += star
          hasMagic = true
        break
        case '?':
          re += qmark
          hasMagic = true
        break
        default:
          re += '\\' + stateChar
        break
      }
      self.debug('clearStateChar %j %j', stateChar, re)
      stateChar = false
    }
  }

  for (var i = 0, len = pattern.length, c
    ; (i < len) && (c = pattern.charAt(i))
    ; i++) {
    this.debug('%s\t%s %s %j', pattern, i, re, c)

    // skip over any that are escaped.
    if (escaping && reSpecials[c]) {
      re += '\\' + c
      escaping = false
      continue
    }

    switch (c) {
      case '/':
        // completely not allowed, even escaped.
        // Should already be path-split by now.
        return false

      case '\\':
        clearStateChar()
        escaping = true
      continue

      // the various stateChar values
      // for the "extglob" stuff.
      case '?':
      case '*':
      case '+':
      case '@':
      case '!':
        this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c)

        // all of those are literals inside a class, except that
        // the glob [!a] means [^a] in regexp
        if (inClass) {
          this.debug('  in class')
          if (c === '!' && i === classStart + 1) c = '^'
          re += c
          continue
        }

        // if we already have a stateChar, then it means
        // that there was something like ** or +? in there.
        // Handle the stateChar, then proceed with this one.
        self.debug('call clearStateChar %j', stateChar)
        clearStateChar()
        stateChar = c
        // if extglob is disabled, then +(asdf|foo) isn't a thing.
        // just clear the statechar *now*, rather than even diving into
        // the patternList stuff.
        if (options.noext) clearStateChar()
      continue

      case '(':
        if (inClass) {
          re += '('
          continue
        }

        if (!stateChar) {
          re += '\\('
          continue
        }

        patternListStack.push({
          type: stateChar,
          start: i - 1,
          reStart: re.length,
          open: plTypes[stateChar].open,
          close: plTypes[stateChar].close
        })
        // negation is (?:(?!js)[^/]*)
        re += stateChar === '!' ? '(?:(?!(?:' : '(?:'
        this.debug('plType %j %j', stateChar, re)
        stateChar = false
      continue

      case ')':
        if (inClass || !patternListStack.length) {
          re += '\\)'
          continue
        }

        clearStateChar()
        hasMagic = true
        var pl = patternListStack.pop()
        // negation is (?:(?!js)[^/]*)
        // The others are (?:<pattern>)<type>
        re += pl.close
        if (pl.type === '!') {
          negativeLists.push(pl)
        }
        pl.reEnd = re.length
      continue

      case '|':
        if (inClass || !patternListStack.length || escaping) {
          re += '\\|'
          escaping = false
          continue
        }

        clearStateChar()
        re += '|'
      continue

      // these are mostly the same in regexp and glob
      case '[':
        // swallow any state-tracking char before the [
        clearStateChar()

        if (inClass) {
          re += '\\' + c
          continue
        }

        inClass = true
        classStart = i
        reClassStart = re.length
        re += c
      continue

      case ']':
        //  a right bracket shall lose its special
        //  meaning and represent itself in
        //  a bracket expression if it occurs
        //  first in the list.  -- POSIX.2 2.8.3.2
        if (i === classStart + 1 || !inClass) {
          re += '\\' + c
          escaping = false
          continue
        }

        // handle the case where we left a class open.
        // "[z-a]" is valid, equivalent to "\[z-a\]"
        if (inClass) {
          // split where the last [ was, make sure we don't have
          // an invalid re. if so, re-walk the contents of the
          // would-be class to re-translate any characters that
          // were passed through as-is
          // TODO: It would probably be faster to determine this
          // without a try/catch and a new RegExp, but it's tricky
          // to do safely.  For now, this is safe and works.
          var cs = pattern.substring(classStart + 1, i)
          try {
            RegExp('[' + cs + ']')
          } catch (er) {
            // not a valid class!
            var sp = this.parse(cs, SUBPARSE)
            re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]'
            hasMagic = hasMagic || sp[1]
            inClass = false
            continue
          }
        }

        // finish up the class.
        hasMagic = true
        inClass = false
        re += c
      continue

      default:
        // swallow any state char that wasn't consumed
        clearStateChar()

        if (escaping) {
          // no need
          escaping = false
        } else if (reSpecials[c]
          && !(c === '^' && inClass)) {
          re += '\\'
        }

        re += c

    } // switch
  } // for

  // handle the case where we left a class open.
  // "[abc" is valid, equivalent to "\[abc"
  if (inClass) {
    // split where the last [ was, and escape it
    // this is a huge pita.  We now have to re-walk
    // the contents of the would-be class to re-translate
    // any characters that were passed through as-is
    cs = pattern.substr(classStart + 1)
    sp = this.parse(cs, SUBPARSE)
    re = re.substr(0, reClassStart) + '\\[' + sp[0]
    hasMagic = hasMagic || sp[1]
  }

  // handle the case where we had a +( thing at the *end*
  // of the pattern.
  // each pattern list stack adds 3 chars, and we need to go through
  // and escape any | chars that were passed through as-is for the regexp.
  // Go through and escape them, taking care not to double-escape any
  // | chars that were already escaped.
  for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
    var tail = re.slice(pl.reStart + pl.open.length)
    this.debug('setting tail', re, pl)
    // maybe some even number of \, then maybe 1 \, followed by a |
    tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
      if (!$2) {
        // the | isn't already escaped, so escape it.
        $2 = '\\'
      }

      // need to escape all those slashes *again*, without escaping the
      // one that we need for escaping the | character.  As it works out,
      // escaping an even number of slashes can be done by simply repeating
      // it exactly after itself.  That's why this trick works.
      //
      // I am sorry that you have to see this.
      return $1 + $1 + $2 + '|'
    })

    this.debug('tail=%j\n   %s', tail, tail, pl, re)
    var t = pl.type === '*' ? star
      : pl.type === '?' ? qmark
      : '\\' + pl.type

    hasMagic = true
    re = re.slice(0, pl.reStart) + t + '\\(' + tail
  }

  // handle trailing things that only matter at the very end.
  clearStateChar()
  if (escaping) {
    // trailing \\
    re += '\\\\'
  }

  // only need to apply the nodot start if the re starts with
  // something that could conceivably capture a dot
  var addPatternStart = false
  switch (re.charAt(0)) {
    case '.':
    case '[':
    case '(': addPatternStart = true
  }

  // Hack to work around lack of negative lookbehind in JS
  // A pattern like: *.!(x).!(y|z) needs to ensure that a name
  // like 'a.xyz.yz' doesn't match.  So, the first negative
  // lookahead, has to look ALL the way ahead, to the end of
  // the pattern.
  for (var n = negativeLists.length - 1; n > -1; n--) {
    var nl = negativeLists[n]

    var nlBefore = re.slice(0, nl.reStart)
    var nlFirst = re.slice(nl.reStart, nl.reEnd - 8)
    var nlLast = re.slice(nl.reEnd - 8, nl.reEnd)
    var nlAfter = re.slice(nl.reEnd)

    nlLast += nlAfter

    // Handle nested stuff like *(*.js|!(*.json)), where open parens
    // mean that we should *not* include the ) in the bit that is considered
    // "after" the negated section.
    var openParensBefore = nlBefore.split('(').length - 1
    var cleanAfter = nlAfter
    for (i = 0; i < openParensBefore; i++) {
      cleanAfter = cleanAfter.replace(/\)[+*?]?/, '')
    }
    nlAfter = cleanAfter

    var dollar = ''
    if (nlAfter === '' && isSub !== SUBPARSE) {
      dollar = '$'
    }
    var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast
    re = newRe
  }

  // if the re is not "" at this point, then we need to make sure
  // it doesn't match against an empty path part.
  // Otherwise a/* will match a/, which it should not.
  if (re !== '' && hasMagic) {
    re = '(?=.)' + re
  }

  if (addPatternStart) {
    re = patternStart + re
  }

  // parsing just a piece of a larger pattern.
  if (isSub === SUBPARSE) {
    return [re, hasMagic]
  }

  // skip the regexp for non-magical patterns
  // unescape anything in it, though, so that it'll be
  // an exact match against a file etc.
  if (!hasMagic) {
    return globUnescape(pattern)
  }

  var flags = options.nocase ? 'i' : ''
  try {
    var regExp = new RegExp('^' + re + '$', flags)
  } catch (er) {
    // If it was an invalid regular expression, then it can't match
    // anything.  This trick looks for a character after the end of
    // the string, which is of course impossible, except in multi-line
    // mode, but it's not a /m regex.
    return new RegExp('$.')
  }

  regExp._glob = pattern
  regExp._src = re

  return regExp
}

minimatch.makeRe = function (pattern, options) {
  return new Minimatch(pattern, options || {}).makeRe()
}

Minimatch.prototype.makeRe = makeRe
function makeRe () {
  if (this.regexp || this.regexp === false) return this.regexp

  // at this point, this.set is a 2d array of partial
  // pattern strings, or "**".
  //
  // It's better to use .match().  This function shouldn't
  // be used, really, but it's pretty convenient sometimes,
  // when you just want to work with a regex.
  var set = this.set

  if (!set.length) {
    this.regexp = false
    return this.regexp
  }
  var options = this.options

  var twoStar = options.noglobstar ? star
    : options.dot ? twoStarDot
    : twoStarNoDot
  var flags = options.nocase ? 'i' : ''

  var re = set.map(function (pattern) {
    return pattern.map(function (p) {
      return (p === GLOBSTAR) ? twoStar
      : (typeof p === 'string') ? regExpEscape(p)
      : p._src
    }).join('\\\/')
  }).join('|')

  // must match entire pattern
  // ending in a * or ** will make it less strict.
  re = '^(?:' + re + ')$'

  // can match anything, as long as it's not this.
  if (this.negate) re = '^(?!' + re + ').*$'

  try {
    this.regexp = new RegExp(re, flags)
  } catch (ex) {
    this.regexp = false
  }
  return this.regexp
}

minimatch.match = function (list, pattern, options) {
  options = options || {}
  var mm = new Minimatch(pattern, options)
  list = list.filter(function (f) {
    return mm.match(f)
  })
  if (mm.options.nonull && !list.length) {
    list.push(pattern)
  }
  return list
}

Minimatch.prototype.match = match
function match (f, partial) {
  this.debug('match', f, this.pattern)
  // short-circuit in the case of busted things.
  // comments, etc.
  if (this.comment) return false
  if (this.empty) return f === ''

  if (f === '/' && partial) return true

  var options = this.options

  // windows: need to use /, not \
  if (path.sep !== '/') {
    f = f.split(path.sep).join('/')
  }

  // treat the test path as a set of pathparts.
  f = f.split(slashSplit)
  this.debug(this.pattern, 'split', f)

  // just ONE of the pattern sets in this.set needs to match
  // in order for it to be valid.  If negating, then just one
  // match means that we have failed.
  // Either way, return on the first hit.

  var set = this.set
  this.debug(this.pattern, 'set', set)

  // Find the basename of the path by looking for the last non-empty segment
  var filename
  var i
  for (i = f.length - 1; i >= 0; i--) {
    filename = f[i]
    if (filename) break
  }

  for (i = 0; i < set.length; i++) {
    var pattern = set[i]
    var file = f
    if (options.matchBase && pattern.length === 1) {
      file = [filename]
    }
    var hit = this.matchOne(file, pattern, partial)
    if (hit) {
      if (options.flipNegate) return true
      return !this.negate
    }
  }

  // didn't get any hits.  this is success if it's a negative
  // pattern, failure otherwise.
  if (options.flipNegate) return false
  return this.negate
}

// set partial to true to test if, for example,
// "/a/b" matches the start of "/*/b/*/d"
// Partial means, if you run out of file before you run
// out of pattern, then that's fine, as long as all
// the parts match.
Minimatch.prototype.matchOne = function (file, pattern, partial) {
  var options = this.options

  this.debug('matchOne',
    { 'this': this, file: file, pattern: pattern })

  this.debug('matchOne', file.length, pattern.length)

  for (var fi = 0,
      pi = 0,
      fl = file.length,
      pl = pattern.length
      ; (fi < fl) && (pi < pl)
      ; fi++, pi++) {
    this.debug('matchOne loop')
    var p = pattern[pi]
    var f = file[fi]

    this.debug(pattern, p, f)

    // should be impossible.
    // some invalid regexp stuff in the set.
    if (p === false) return false

    if (p === GLOBSTAR) {
      this.debug('GLOBSTAR', [pattern, p, f])

      // "**"
      // a/**/b/**/c would match the following:
      // a/b/x/y/z/c
      // a/x/y/z/b/c
      // a/b/x/b/x/c
      // a/b/c
      // To do this, take the rest of the pattern after
      // the **, and see if it would match the file remainder.
      // If so, return success.
      // If not, the ** "swallows" a segment, and try again.
      // This is recursively awful.
      //
      // a/**/b/**/c matching a/b/x/y/z/c
      // - a matches a
      // - doublestar
      //   - matchOne(b/x/y/z/c, b/**/c)
      //     - b matches b
      //     - doublestar
      //       - matchOne(x/y/z/c, c) -> no
      //       - matchOne(y/z/c, c) -> no
      //       - matchOne(z/c, c) -> no
      //       - matchOne(c, c) yes, hit
      var fr = fi
      var pr = pi + 1
      if (pr === pl) {
        this.debug('** at the end')
        // a ** at the end will just swallow the rest.
        // We have found a match.
        // however, it will not swallow /.x, unless
        // options.dot is set.
        // . and .. are *never* matched by **, for explosively
        // exponential reasons.
        for (; fi < fl; fi++) {
          if (file[fi] === '.' || file[fi] === '..' ||
            (!options.dot && file[fi].charAt(0) === '.')) return false
        }
        return true
      }

      // ok, let's see if we can swallow whatever we can.
      while (fr < fl) {
        var swallowee = file[fr]

        this.debug('\nglobstar while', file, fr, pattern, pr, swallowee)

        // XXX remove this slice.  Just pass the start index.
        if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
          this.debug('globstar found match!', fr, fl, swallowee)
          // found a match.
          return true
        } else {
          // can't swallow "." or ".." ever.
          // can only swallow ".foo" when explicitly asked.
          if (swallowee === '.' || swallowee === '..' ||
            (!options.dot && swallowee.charAt(0) === '.')) {
            this.debug('dot detected!', file, fr, pattern, pr)
            break
          }

          // ** swallows a segment, and continue.
          this.debug('globstar swallow a segment, and continue')
          fr++
        }
      }

      // no match was found.
      // However, in partial mode, we can't say this is necessarily over.
      // If there's more *pattern* left, then
      if (partial) {
        // ran out of file
        this.debug('\n>>> no match, partial?', file, fr, pattern, pr)
        if (fr === fl) return true
      }
      return false
    }

    // something other than **
    // non-magic patterns just have to match exactly
    // patterns with magic have been turned into regexps.
    var hit
    if (typeof p === 'string') {
      if (options.nocase) {
        hit = f.toLowerCase() === p.toLowerCase()
      } else {
        hit = f === p
      }
      this.debug('string match', p, f, hit)
    } else {
      hit = f.match(p)
      this.debug('pattern match', p, f, hit)
    }

    if (!hit) return false
  }

  // Note: ending in / means that we'll get a final ""
  // at the end of the pattern.  This can only match a
  // corresponding "" at the end of the file.
  // If the file ends in /, then it can only match a
  // a pattern that ends in /, unless the pattern just
  // doesn't have any more for it. But, a/b/ should *not*
  // match "a/b/*", even though "" matches against the
  // [^/]*? pattern, except in partial mode, where it might
  // simply not be reached yet.
  // However, a/b/ should still satisfy a/*

  // now either we fell off the end of the pattern, or we're done.
  if (fi === fl && pi === pl) {
    // ran out of pattern and filename at the same time.
    // an exact hit!
    return true
  } else if (fi === fl) {
    // ran out of file, but still had pattern left.
    // this is ok if we're doing the match as part of
    // a glob fs traversal.
    return partial
  } else if (pi === pl) {
    // ran out of pattern, still have file left.
    // this is only acceptable if we're on the very last
    // empty segment of a file with a trailing slash.
    // a/* should match a/b/
    var emptyFileEnd = (fi === fl - 1) && (file[fi] === '')
    return emptyFileEnd
  }

  // should be unreachable.
  throw new Error('wtf?')
}

// replace stuff like \* with *
function globUnescape (s) {
  return s.replace(/\\(.)/g, '$1')
}

function regExpEscape (s) {
  return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
}

},{"brace-expansion":37,"path":251}],244:[function(require,module,exports){

var Promise = require('any-promise')
var fs
try {
  fs = require('graceful-fs')
} catch(err) {
  fs = require('fs')
}

var api = [
  'appendFile',
  'chmod',
  'chown',
  'close',
  'fchmod',
  'fchown',
  'fdatasync',
  'fstat',
  'fsync',
  'ftruncate',
  'futimes',
  'lchown',
  'link',
  'lstat',
  'mkdir',
  'open',
  'read',
  'readFile',
  'readdir',
  'readlink',
  'realpath',
  'rename',
  'rmdir',
  'stat',
  'symlink',
  'truncate',
  'unlink',
  'utimes',
  'write',
  'writeFile'
]

typeof fs.access === 'function' && api.push('access')
typeof fs.copyFile === 'function' && api.push('copyFile')
typeof fs.mkdtemp === 'function' && api.push('mkdtemp')

require('thenify-all').withCallback(fs, exports, api)

exports.exists = function (filename, callback) {
  // callback
  if (typeof callback === 'function') {
    return fs.stat(filename, function (err) {
      callback(null, !err);
    })
  }
  // or promise
  return new Promise(function (resolve) {
    fs.stat(filename, function (err) {
      resolve(!err)
    })
  })
}

},{"any-promise":1,"fs":39,"graceful-fs":229,"thenify-all":301}],245:[function(require,module,exports){
var lowerCase = require('lower-case')

var NON_WORD_REGEXP = require('./vendor/non-word-regexp')
var CAMEL_CASE_REGEXP = require('./vendor/camel-case-regexp')
var CAMEL_CASE_UPPER_REGEXP = require('./vendor/camel-case-upper-regexp')

/**
 * Sentence case a string.
 *
 * @param  {string} str
 * @param  {string} locale
 * @param  {string} replacement
 * @return {string}
 */
module.exports = function (str, locale, replacement) {
  if (str == null) {
    return ''
  }

  replacement = typeof replacement !== 'string' ? ' ' : replacement

  function replace (match, index, value) {
    if (index === 0 || index === (value.length - match.length)) {
      return ''
    }

    return replacement
  }

  str = String(str)
    // Support camel case ("camelCase" -> "camel Case").
    .replace(CAMEL_CASE_REGEXP, '$1 $2')
    // Support odd camel case ("CAMELCase" -> "CAMEL Case").
    .replace(CAMEL_CASE_UPPER_REGEXP, '$1 $2')
    // Remove all non-word characters and replace with a single space.
    .replace(NON_WORD_REGEXP, replace)

  // Lower case the entire string.
  return lowerCase(str, locale)
}

},{"./vendor/camel-case-regexp":246,"./vendor/camel-case-upper-regexp":247,"./vendor/non-word-regexp":248,"lower-case":242}],246:[function(require,module,exports){
module.exports = 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},{}],247:[function(require,module,exports){
module.exports = 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},{}],248:[function(require,module,exports){
module.exports = 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uA9F0-\uA9F9\uAA50-\uAA59\uABF0-\uABF9\uFF10-\uFF19]+/g

},{}],249:[function(require,module,exports){
var wrappy = require('wrappy')
module.exports = wrappy(once)
module.exports.strict = wrappy(onceStrict)

once.proto = once(function () {
  Object.defineProperty(Function.prototype, 'once', {
    value: function () {
      return once(this)
    },
    configurable: true
  })

  Object.defineProperty(Function.prototype, 'onceStrict', {
    value: function () {
      return onceStrict(this)
    },
    configurable: true
  })
})

function once (fn) {
  var f = function () {
    if (f.called) return f.value
    f.called = true
    return f.value = fn.apply(this, arguments)
  }
  f.called = false
  return f
}

function onceStrict (fn) {
  var f = function () {
    if (f.called)
      throw new Error(f.onceError)
    f.called = true
    return f.value = fn.apply(this, arguments)
  }
  var name = fn.name || 'Function wrapped with `once`'
  f.onceError = name + " shouldn't be called more than once"
  f.called = false
  return f
}

},{"wrappy":311}],250:[function(require,module,exports){
'use strict';

var repeat = require('repeat-string');

module.exports = function padLeft(val, num, str) {
  var padding = '';
  var diff = num - val.length;

  // Breakpoints based on benchmarks to use the fastest approach
  // for the given number of zeros
  if (diff <= 5 && !str) {
    padding = '00000';
  } else if (diff <= 25 && !str) {
    padding = '000000000000000000000000000';
  } else {
    return val + repeat(str || '0', diff);
  }

  return val + padding.slice(0, diff);
};

},{"repeat-string":273}],251:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = parts.length - 1; i >= 0; i--) {
    var last = parts[i];
    if (last === '.') {
      parts.splice(i, 1);
    } else if (last === '..') {
      parts.splice(i, 1);
      up++;
    } else if (up) {
      parts.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (allowAboveRoot) {
    for (; up--; up) {
      parts.unshift('..');
    }
  }

  return parts;
}

// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var splitPath = function(filename) {
  return splitPathRe.exec(filename).slice(1);
};

// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
  var resolvedPath = '',
      resolvedAbsolute = false;

  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
    var path = (i >= 0) ? arguments[i] : process.cwd();

    // Skip empty and invalid entries
    if (typeof path !== 'string') {
      throw new TypeError('Arguments to path.resolve must be strings');
    } else if (!path) {
      continue;
    }

    resolvedPath = path + '/' + resolvedPath;
    resolvedAbsolute = path.charAt(0) === '/';
  }

  // At this point the path should be resolved to a full absolute path, but
  // handle relative paths to be safe (might happen when process.cwd() fails)

  // Normalize the path
  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
    return !!p;
  }), !resolvedAbsolute).join('/');

  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};

// path.normalize(path)
// posix version
exports.normalize = function(path) {
  var isAbsolute = exports.isAbsolute(path),
      trailingSlash = substr(path, -1) === '/';

  // Normalize the path
  path = normalizeArray(filter(path.split('/'), function(p) {
    return !!p;
  }), !isAbsolute).join('/');

  if (!path && !isAbsolute) {
    path = '.';
  }
  if (path && trailingSlash) {
    path += '/';
  }

  return (isAbsolute ? '/' : '') + path;
};

// posix version
exports.isAbsolute = function(path) {
  return path.charAt(0) === '/';
};

// posix version
exports.join = function() {
  var paths = Array.prototype.slice.call(arguments, 0);
  return exports.normalize(filter(paths, function(p, index) {
    if (typeof p !== 'string') {
      throw new TypeError('Arguments to path.join must be strings');
    }
    return p;
  }).join('/'));
};


// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
  from = exports.resolve(from).substr(1);
  to = exports.resolve(to).substr(1);

  function trim(arr) {
    var start = 0;
    for (; start < arr.length; start++) {
      if (arr[start] !== '') break;
    }

    var end = arr.length - 1;
    for (; end >= 0; end--) {
      if (arr[end] !== '') break;
    }

    if (start > end) return [];
    return arr.slice(start, end - start + 1);
  }

  var fromParts = trim(from.split('/'));
  var toParts = trim(to.split('/'));

  var length = Math.min(fromParts.length, toParts.length);
  var samePartsLength = length;
  for (var i = 0; i < length; i++) {
    if (fromParts[i] !== toParts[i]) {
      samePartsLength = i;
      break;
    }
  }

  var outputParts = [];
  for (var i = samePartsLength; i < fromParts.length; i++) {
    outputParts.push('..');
  }

  outputParts = outputParts.concat(toParts.slice(samePartsLength));

  return outputParts.join('/');
};

exports.sep = '/';
exports.delimiter = ':';

exports.dirname = function(path) {
  var result = splitPath(path),
      root = result[0],
      dir = result[1];

  if (!root && !dir) {
    // No dirname whatsoever
    return '.';
  }

  if (dir) {
    // It has a dirname, strip trailing slash
    dir = dir.substr(0, dir.length - 1);
  }

  return root + dir;
};


exports.basename = function(path, ext) {
  var f = splitPath(path)[2];
  // TODO: make this comparison case-insensitive on windows?
  if (ext && f.substr(-1 * ext.length) === ext) {
    f = f.substr(0, f.length - ext.length);
  }
  return f;
};


exports.extname = function(path) {
  return splitPath(path)[3];
};

function filter (xs, f) {
    if (xs.filter) return xs.filter(f);
    var res = [];
    for (var i = 0; i < xs.length; i++) {
        if (f(xs[i], i, xs)) res.push(xs[i]);
    }
    return res;
}

// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
    ? function (str, start, len) { return str.substr(start, len) }
    : function (str, start, len) {
        if (start < 0) start = str.length + start;
        return str.substr(start, len);
    }
;

}).call(this,require('_process'))
},{"_process":255}],252:[function(require,module,exports){
(function (process){
'use strict';

function posix(path) {
	return path.charAt(0) === '/';
}

function win32(path) {
	// https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56
	var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
	var result = splitDeviceRe.exec(path);
	var device = result[1] || '';
	var isUnc = Boolean(device && device.charAt(1) !== ':');

	// UNC paths are always absolute
	return Boolean(result[2] || isUnc);
}

module.exports = process.platform === 'win32' ? win32 : posix;
module.exports.posix = posix;
module.exports.win32 = win32;

}).call(this,require('_process'))
},{"_process":255}],253:[function(require,module,exports){
(function (process){
'use strict';

var isWindows = process.platform === 'win32';

// Regex to split a windows path into three parts: [*, device, slash,
// tail] windows-only
var splitDeviceRe =
    /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;

// Regex to split the tail part of the above into [*, dir, basename, ext]
var splitTailRe =
    /^([\s\S]*?)((?:\.{1,2}|[^\\\/]+?|)(\.[^.\/\\]*|))(?:[\\\/]*)$/;

var win32 = {};

// Function to split a filename into [root, dir, basename, ext]
function win32SplitPath(filename) {
  // Separate device+slash from tail
  var result = splitDeviceRe.exec(filename),
      device = (result[1] || '') + (result[2] || ''),
      tail = result[3] || '';
  // Split the tail into dir, basename and extension
  var result2 = splitTailRe.exec(tail),
      dir = result2[1],
      basename = result2[2],
      ext = result2[3];
  return [device, dir, basename, ext];
}

win32.parse = function(pathString) {
  if (typeof pathString !== 'string') {
    throw new TypeError(
        "Parameter 'pathString' must be a string, not " + typeof pathString
    );
  }
  var allParts = win32SplitPath(pathString);
  if (!allParts || allParts.length !== 4) {
    throw new TypeError("Invalid path '" + pathString + "'");
  }
  return {
    root: allParts[0],
    dir: allParts[0] + allParts[1].slice(0, -1),
    base: allParts[2],
    ext: allParts[3],
    name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
  };
};



// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var posix = {};


function posixSplitPath(filename) {
  return splitPathRe.exec(filename).slice(1);
}


posix.parse = function(pathString) {
  if (typeof pathString !== 'string') {
    throw new TypeError(
        "Parameter 'pathString' must be a string, not " + typeof pathString
    );
  }
  var allParts = posixSplitPath(pathString);
  if (!allParts || allParts.length !== 4) {
    throw new TypeError("Invalid path '" + pathString + "'");
  }
  allParts[1] = allParts[1] || '';
  allParts[2] = allParts[2] || '';
  allParts[3] = allParts[3] || '';

  return {
    root: allParts[0],
    dir: allParts[0] + allParts[1].slice(0, -1),
    base: allParts[2],
    ext: allParts[3],
    name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
  };
};


if (isWindows)
  module.exports = win32.parse;
else /* posix */
  module.exports = posix.parse;

module.exports.posix = posix.parse;
module.exports.win32 = win32.parse;

}).call(this,require('_process'))
},{"_process":255}],254:[function(require,module,exports){
(function (process){
'use strict';

if (!process.version ||
    process.version.indexOf('v0.') === 0 ||
    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
  module.exports = nextTick;
} else {
  module.exports = process.nextTick;
}

function nextTick(fn, arg1, arg2, arg3) {
  if (typeof fn !== 'function') {
    throw new TypeError('"callback" argument must be a function');
  }
  var len = arguments.length;
  var args, i;
  switch (len) {
  case 0:
  case 1:
    return process.nextTick(fn);
  case 2:
    return process.nextTick(function afterTickOne() {
      fn.call(null, arg1);
    });
  case 3:
    return process.nextTick(function afterTickTwo() {
      fn.call(null, arg1, arg2);
    });
  case 4:
    return process.nextTick(function afterTickThree() {
      fn.call(null, arg1, arg2, arg3);
    });
  default:
    args = new Array(len - 1);
    i = 0;
    while (i < args.length) {
      args[i++] = arguments[i];
    }
    return process.nextTick(function afterTick() {
      fn.apply(null, args);
    });
  }
}

}).call(this,require('_process'))
},{"_process":255}],255:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) { return [] }

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],256:[function(require,module,exports){
module.exports = require('./lib/node-progress');

},{"./lib/node-progress":257}],257:[function(require,module,exports){
(function (process){
/*!
 * node-progress
 * Copyright(c) 2011 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Expose `ProgressBar`.
 */

exports = module.exports = ProgressBar;

/**
 * Initialize a `ProgressBar` with the given `fmt` string and `options` or
 * `total`.
 *
 * Options:
 *
 *   - `curr` current completed index
 *   - `total` total number of ticks to complete
 *   - `width` the displayed width of the progress bar defaulting to total
 *   - `stream` the output stream defaulting to stderr
 *   - `head` head character defaulting to complete character
 *   - `complete` completion character defaulting to "="
 *   - `incomplete` incomplete character defaulting to "-"
 *   - `renderThrottle` minimum time between updates in milliseconds defaulting to 16
 *   - `callback` optional function to call when the progress bar completes
 *   - `clear` will clear the progress bar upon termination
 *
 * Tokens:
 *
 *   - `:bar` the progress bar itself
 *   - `:current` current tick number
 *   - `:total` total ticks
 *   - `:elapsed` time elapsed in seconds
 *   - `:percent` completion percentage
 *   - `:eta` eta in seconds
 *   - `:rate` rate of ticks per second
 *
 * @param {string} fmt
 * @param {object|number} options or total
 * @api public
 */

function ProgressBar(fmt, options) {
  this.stream = options.stream || process.stderr;

  if (typeof(options) == 'number') {
    var total = options;
    options = {};
    options.total = total;
  } else {
    options = options || {};
    if ('string' != typeof fmt) throw new Error('format required');
    if ('number' != typeof options.total) throw new Error('total required');
  }

  this.fmt = fmt;
  this.curr = options.curr || 0;
  this.total = options.total;
  this.width = options.width || this.total;
  this.clear = options.clear
  this.chars = {
    complete   : options.complete || '=',
    incomplete : options.incomplete || '-',
    head       : options.head || (options.complete || '=')
  };
  this.renderThrottle = options.renderThrottle !== 0 ? (options.renderThrottle || 16) : 0;
  this.callback = options.callback || function () {};
  this.tokens = {};
  this.lastDraw = '';
}

/**
 * "tick" the progress bar with optional `len` and optional `tokens`.
 *
 * @param {number|object} len or tokens
 * @param {object} tokens
 * @api public
 */

ProgressBar.prototype.tick = function(len, tokens){
  if (len !== 0)
    len = len || 1;

  // swap tokens
  if ('object' == typeof len) tokens = len, len = 1;
  if (tokens) this.tokens = tokens;

  // start time for eta
  if (0 == this.curr) this.start = new Date;

  this.curr += len

  // schedule render
  if (!this.renderThrottleTimeout) {
    this.renderThrottleTimeout = setTimeout(this.render.bind(this), this.renderThrottle);
  }

  // progress complete
  if (this.curr >= this.total) {
    if (this.renderThrottleTimeout) this.render();
    this.complete = true;
    this.terminate();
    this.callback(this);
    return;
  }
};

/**
 * Method to render the progress bar with optional `tokens` to place in the
 * progress bar's `fmt` field.
 *
 * @param {object} tokens
 * @api public
 */

ProgressBar.prototype.render = function (tokens) {
  clearTimeout(this.renderThrottleTimeout);
  this.renderThrottleTimeout = null;

  if (tokens) this.tokens = tokens;

  if (!this.stream.isTTY) return;

  var ratio = this.curr / this.total;
  ratio = Math.min(Math.max(ratio, 0), 1);

  var percent = ratio * 100;
  var incomplete, complete, completeLength;
  var elapsed = new Date - this.start;
  var eta = (percent == 100) ? 0 : elapsed * (this.total / this.curr - 1);
  var rate = this.curr / (elapsed / 1000);

  /* populate the bar template with percentages and timestamps */
  var str = this.fmt
    .replace(':current', this.curr)
    .replace(':total', this.total)
    .replace(':elapsed', isNaN(elapsed) ? '0.0' : (elapsed / 1000).toFixed(1))
    .replace(':eta', (isNaN(eta) || !isFinite(eta)) ? '0.0' : (eta / 1000)
      .toFixed(1))
    .replace(':percent', percent.toFixed(0) + '%')
    .replace(':rate', Math.round(rate));

  /* compute the available space (non-zero) for the bar */
  var availableSpace = Math.max(0, this.stream.columns - str.replace(':bar', '').length);
  if(availableSpace && process.platform === 'win32'){
    availableSpace = availableSpace - 1;
  }

  var width = Math.min(this.width, availableSpace);

  /* TODO: the following assumes the user has one ':bar' token */
  completeLength = Math.round(width * ratio);
  complete = Array(Math.max(0, completeLength + 1)).join(this.chars.complete);
  incomplete = Array(Math.max(0, width - completeLength + 1)).join(this.chars.incomplete);

  /* add head to the complete string */
  if(completeLength > 0)
    complete = complete.slice(0, -1) + this.chars.head;

  /* fill in the actual progress bar */
  str = str.replace(':bar', complete + incomplete);

  /* replace the extra tokens */
  if (this.tokens) for (var key in this.tokens) str = str.replace(':' + key, this.tokens[key]);

  if (this.lastDraw !== str) {
    this.stream.cursorTo(0);
    this.stream.write(str);
    this.stream.clearLine(1);
    this.lastDraw = str;
  }
};

/**
 * "update" the progress bar to represent an exact percentage.
 * The ratio (between 0 and 1) specified will be multiplied by `total` and
 * floored, representing the closest available "tick." For example, if a
 * progress bar has a length of 3 and `update(0.5)` is called, the progress
 * will be set to 1.
 *
 * A ratio of 0.5 will attempt to set the progress to halfway.
 *
 * @param {number} ratio The ratio (between 0 and 1 inclusive) to set the
 *   overall completion to.
 * @api public
 */

ProgressBar.prototype.update = function (ratio, tokens) {
  var goal = Math.floor(ratio * this.total);
  var delta = goal - this.curr;

  this.tick(delta, tokens);
};

/**
 * "interrupt" the progress bar and write a message above it.
 * @param {string} message The message to write.
 * @api public
 */

ProgressBar.prototype.interrupt = function (message) {
  // clear the current line
  this.stream.clearLine();
  // move the cursor to the start of the line
  this.stream.cursorTo(0);
  // write the message text
  this.stream.write(message);
  // terminate the line after writing the message
  this.stream.write('\n');
  // re-display the progress bar with its lastDraw
  this.stream.write(this.lastDraw);
};

/**
 * Terminates a progress bar.
 *
 * @api public
 */

ProgressBar.prototype.terminate = function () {
  if (this.clear) {
    if (this.stream.clearLine) {
      this.stream.clearLine();
      this.stream.cursorTo(0);
    }
  } else {
    this.stream.write('\n');
  }
};

}).call(this,require('_process'))
},{"_process":255}],258:[function(require,module,exports){
module.exports = require('./lib/_stream_duplex.js');

},{"./lib/_stream_duplex.js":259}],259:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.

'use strict';

/*<replacement>*/

var processNextTick = require('process-nextick-args');
/*</replacement>*/

/*<replacement>*/
var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    keys.push(key);
  }return keys;
};
/*</replacement>*/

module.exports = Duplex;

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');

util.inherits(Duplex, Readable);

var keys = objectKeys(Writable.prototype);
for (var v = 0; v < keys.length; v++) {
  var method = keys[v];
  if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
}

function Duplex(options) {
  if (!(this instanceof Duplex)) return new Duplex(options);

  Readable.call(this, options);
  Writable.call(this, options);

  if (options && options.readable === false) this.readable = false;

  if (options && options.writable === false) this.writable = false;

  this.allowHalfOpen = true;
  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;

  this.once('end', onend);
}

// the no-half-open enforcer
function onend() {
  // if we allow half-open state, or if the writable side ended,
  // then we're ok.
  if (this.allowHalfOpen || this._writableState.ended) return;

  // no more data can be written.
  // But allow more writes to happen in this tick.
  processNextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

Object.defineProperty(Duplex.prototype, 'destroyed', {
  get: function () {
    if (this._readableState === undefined || this._writableState === undefined) {
      return false;
    }
    return this._readableState.destroyed && this._writableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (this._readableState === undefined || this._writableState === undefined) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._readableState.destroyed = value;
    this._writableState.destroyed = value;
  }
});

Duplex.prototype._destroy = function (err, cb) {
  this.push(null);
  this.end();

  processNextTick(cb, err);
};

function forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}
},{"./_stream_readable":261,"./_stream_writable":263,"core-util-is":152,"inherits":235,"process-nextick-args":254}],260:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.

'use strict';

module.exports = PassThrough;

var Transform = require('./_stream_transform');

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough)) return new PassThrough(options);

  Transform.call(this, options);
}

PassThrough.prototype._transform = function (chunk, encoding, cb) {
  cb(null, chunk);
};
},{"./_stream_transform":262,"core-util-is":152,"inherits":235}],261:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

/*<replacement>*/

var processNextTick = require('process-nextick-args');
/*</replacement>*/

module.exports = Readable;

/*<replacement>*/
var isArray = require('isarray');
/*</replacement>*/

/*<replacement>*/
var Duplex;
/*</replacement>*/

Readable.ReadableState = ReadableState;

/*<replacement>*/
var EE = require('events').EventEmitter;

var EElistenerCount = function (emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/

/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/

// TODO(bmeurer): Change this back to const once hole checks are
// properly optimized away early in Ignition+TurboFan.
/*<replacement>*/
var Buffer = require('safe-buffer').Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}
function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
/*</replacement>*/

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var debugUtil = require('util');
var debug = void 0;
if (debugUtil && debugUtil.debuglog) {
  debug = debugUtil.debuglog('stream');
} else {
  debug = function () {};
}
/*</replacement>*/

var BufferList = require('./internal/streams/BufferList');
var destroyImpl = require('./internal/streams/destroy');
var StringDecoder;

util.inherits(Readable, Stream);

var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];

function prependListener(emitter, event, fn) {
  // Sadly this is not cacheable as some libraries bundle their own
  // event emitter implementation with them.
  if (typeof emitter.prependListener === 'function') {
    return emitter.prependListener(event, fn);
  } else {
    // This is a hack to make sure that our error handler is attached before any
    // userland ones.  NEVER DO THIS. This is here only because this code needs
    // to continue to work with older versions of Node.js that do not include
    // the prependListener() method. The goal is to eventually remove this hack.
    if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
  }
}

function ReadableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away
  this.objectMode = !!options.objectMode;

  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;

  // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"
  var hwm = options.highWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;

  // cast to ints.
  this.highWaterMark = Math.floor(this.highWaterMark);

  // A linked list is used to store data chunks instead of an array because the
  // linked list can remove elements from the beginning faster than
  // array.shift()
  this.buffer = new BufferList();
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = null;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false;

  // a flag to be able to tell if the event 'readable'/'data' is emitted
  // immediately, or on a later tick.  We set this to true at first, because
  // any actions that shouldn't happen until "later" should generally also
  // not happen before the first read call.
  this.sync = true;

  // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.
  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;
  this.resumeScheduled = false;

  // has it been destroyed
  this.destroyed = false;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // the number of writers that are awaiting a drain event in .pipe()s
  this.awaitDrain = 0;

  // if true, a maybeReadMore has been scheduled
  this.readingMore = false;

  this.decoder = null;
  this.encoding = null;
  if (options.encoding) {
    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

function Readable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  if (!(this instanceof Readable)) return new Readable(options);

  this._readableState = new ReadableState(options, this);

  // legacy
  this.readable = true;

  if (options) {
    if (typeof options.read === 'function') this._read = options.read;

    if (typeof options.destroy === 'function') this._destroy = options.destroy;
  }

  Stream.call(this);
}

Object.defineProperty(Readable.prototype, 'destroyed', {
  get: function () {
    if (this._readableState === undefined) {
      return false;
    }
    return this._readableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._readableState) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._readableState.destroyed = value;
  }
});

Readable.prototype.destroy = destroyImpl.destroy;
Readable.prototype._undestroy = destroyImpl.undestroy;
Readable.prototype._destroy = function (err, cb) {
  this.push(null);
  cb(err);
};

// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function (chunk, encoding) {
  var state = this._readableState;
  var skipChunkCheck;

  if (!state.objectMode) {
    if (typeof chunk === 'string') {
      encoding = encoding || state.defaultEncoding;
      if (encoding !== state.encoding) {
        chunk = Buffer.from(chunk, encoding);
        encoding = '';
      }
      skipChunkCheck = true;
    }
  } else {
    skipChunkCheck = true;
  }

  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
};

// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function (chunk) {
  return readableAddChunk(this, chunk, null, true, false);
};

function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
  var state = stream._readableState;
  if (chunk === null) {
    state.reading = false;
    onEofChunk(stream, state);
  } else {
    var er;
    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
    if (er) {
      stream.emit('error', er);
    } else if (state.objectMode || chunk && chunk.length > 0) {
      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
        chunk = _uint8ArrayToBuffer(chunk);
      }

      if (addToFront) {
        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
      } else if (state.ended) {
        stream.emit('error', new Error('stream.push() after EOF'));
      } else {
        state.reading = false;
        if (state.decoder && !encoding) {
          chunk = state.decoder.write(chunk);
          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
        } else {
          addChunk(stream, state, chunk, false);
        }
      }
    } else if (!addToFront) {
      state.reading = false;
    }
  }

  return needMoreData(state);
}

function addChunk(stream, state, chunk, addToFront) {
  if (state.flowing && state.length === 0 && !state.sync) {
    stream.emit('data', chunk);
    stream.read(0);
  } else {
    // update the buffer info.
    state.length += state.objectMode ? 1 : chunk.length;
    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);

    if (state.needReadable) emitReadable(stream);
  }
  maybeReadMore(stream, state);
}

function chunkInvalid(state, chunk) {
  var er;
  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  return er;
}

// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes.  This is to work around cases where hwm=0,
// such as the repl.  Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}

Readable.prototype.isPaused = function () {
  return this._readableState.flowing === false;
};

// backwards compatibility.
Readable.prototype.setEncoding = function (enc) {
  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
  this._readableState.decoder = new StringDecoder(enc);
  this._readableState.encoding = enc;
  return this;
};

// Don't raise the hwm > 8MB
var MAX_HWM = 0x800000;
function computeNewHighWaterMark(n) {
  if (n >= MAX_HWM) {
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2 to prevent increasing hwm excessively in
    // tiny amounts
    n--;
    n |= n >>> 1;
    n |= n >>> 2;
    n |= n >>> 4;
    n |= n >>> 8;
    n |= n >>> 16;
    n++;
  }
  return n;
}

// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function howMuchToRead(n, state) {
  if (n <= 0 || state.length === 0 && state.ended) return 0;
  if (state.objectMode) return 1;
  if (n !== n) {
    // Only flow one buffer at a time
    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
  }
  // If we're asking for more than the current hwm, then raise the hwm.
  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
  if (n <= state.length) return n;
  // Don't have enough
  if (!state.ended) {
    state.needReadable = true;
    return 0;
  }
  return state.length;
}

// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function (n) {
  debug('read', n);
  n = parseInt(n, 10);
  var state = this._readableState;
  var nOrig = n;

  if (n !== 0) state.emittedReadable = false;

  // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.
  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
    debug('read: emitReadable', state.length, state.ended);
    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state);

  // if we've ended, and we're now clear, then finish it up.
  if (n === 0 && state.ended) {
    if (state.length === 0) endReadable(this);
    return null;
  }

  // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.

  // if we need a readable event, then we need to do some reading.
  var doRead = state.needReadable;
  debug('need readable', doRead);

  // if we currently have less than the highWaterMark, then also read some
  if (state.length === 0 || state.length - n < state.highWaterMark) {
    doRead = true;
    debug('length less than watermark', doRead);
  }

  // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.
  if (state.ended || state.reading) {
    doRead = false;
    debug('reading or ended', doRead);
  } else if (doRead) {
    debug('do read');
    state.reading = true;
    state.sync = true;
    // if the length is currently zero, then we *need* a readable event.
    if (state.length === 0) state.needReadable = true;
    // call internal read method
    this._read(state.highWaterMark);
    state.sync = false;
    // If _read pushed data synchronously, then `reading` will be false,
    // and we need to re-evaluate how much data we can return to the user.
    if (!state.reading) n = howMuchToRead(nOrig, state);
  }

  var ret;
  if (n > 0) ret = fromList(n, state);else ret = null;

  if (ret === null) {
    state.needReadable = true;
    n = 0;
  } else {
    state.length -= n;
  }

  if (state.length === 0) {
    // If we have nothing in the buffer, then we want to know
    // as soon as we *do* get something into the buffer.
    if (!state.ended) state.needReadable = true;

    // If we tried to read() past the EOF, then emit end on the next tick.
    if (nOrig !== n && state.ended) endReadable(this);
  }

  if (ret !== null) this.emit('data', ret);

  return ret;
};

function onEofChunk(stream, state) {
  if (state.ended) return;
  if (state.decoder) {
    var chunk = state.decoder.end();
    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }
  state.ended = true;

  // emit 'readable' now to make sure it gets picked up.
  emitReadable(stream);
}

// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
  var state = stream._readableState;
  state.needReadable = false;
  if (!state.emittedReadable) {
    debug('emitReadable', state.flowing);
    state.emittedReadable = true;
    if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
  }
}

function emitReadable_(stream) {
  debug('emit readable');
  stream.emit('readable');
  flow(stream);
}

// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    processNextTick(maybeReadMore_, stream, state);
  }
}

function maybeReadMore_(stream, state) {
  var len = state.length;
  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
    debug('maybeReadMore read 0');
    stream.read(0);
    if (len === state.length)
      // didn't get any data, stop spinning.
      break;else len = state.length;
  }
  state.readingMore = false;
}

// abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function (n) {
  this.emit('error', new Error('_read() is not implemented'));
};

Readable.prototype.pipe = function (dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;
    case 1:
      state.pipes = [state.pipes, dest];
      break;
    default:
      state.pipes.push(dest);
      break;
  }
  state.pipesCount += 1;
  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);

  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;

  var endFn = doEnd ? onend : unpipe;
  if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);

  dest.on('unpipe', onunpipe);
  function onunpipe(readable, unpipeInfo) {
    debug('onunpipe');
    if (readable === src) {
      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
        unpipeInfo.hasUnpiped = true;
        cleanup();
      }
    }
  }

  function onend() {
    debug('onend');
    dest.end();
  }

  // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.
  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);

  var cleanedUp = false;
  function cleanup() {
    debug('cleanup');
    // cleanup event handlers once the pipe is broken
    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', unpipe);
    src.removeListener('data', ondata);

    cleanedUp = true;

    // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.
    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
  }

  // If the user pushes more data while we're writing to dest then we'll end up
  // in ondata again. However, we only want to increase awaitDrain once because
  // dest will only emit one 'drain' event for the multiple writes.
  // => Introduce a guard on increasing awaitDrain.
  var increasedAwaitDrain = false;
  src.on('data', ondata);
  function ondata(chunk) {
    debug('ondata');
    increasedAwaitDrain = false;
    var ret = dest.write(chunk);
    if (false === ret && !increasedAwaitDrain) {
      // If the user unpiped during `dest.write()`, it is possible
      // to get stuck in a permanently paused state if that write
      // also returned false.
      // => Check whether `dest` is still a piping destination.
      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
        debug('false write response, pause', src._readableState.awaitDrain);
        src._readableState.awaitDrain++;
        increasedAwaitDrain = true;
      }
      src.pause();
    }
  }

  // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.
  function onerror(er) {
    debug('onerror', er);
    unpipe();
    dest.removeListener('error', onerror);
    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
  }

  // Make sure our error handler is attached before userland ones.
  prependListener(dest, 'error', onerror);

  // Both close and finish should trigger unpipe, but only once.
  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }
  dest.once('close', onclose);
  function onfinish() {
    debug('onfinish');
    dest.removeListener('close', onclose);
    unpipe();
  }
  dest.once('finish', onfinish);

  function unpipe() {
    debug('unpipe');
    src.unpipe(dest);
  }

  // tell the dest that it's being piped to
  dest.emit('pipe', src);

  // start the flow if it hasn't been started already.
  if (!state.flowing) {
    debug('pipe resume');
    src.resume();
  }

  return dest;
};

function pipeOnDrain(src) {
  return function () {
    var state = src._readableState;
    debug('pipeOnDrain', state.awaitDrain);
    if (state.awaitDrain) state.awaitDrain--;
    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
      state.flowing = true;
      flow(src);
    }
  };
}

Readable.prototype.unpipe = function (dest) {
  var state = this._readableState;
  var unpipeInfo = { hasUnpiped: false };

  // if we're not piping anywhere, then do nothing.
  if (state.pipesCount === 0) return this;

  // just one destination.  most common case.
  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes) return this;

    if (!dest) dest = state.pipes;

    // got a match.
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;
    if (dest) dest.emit('unpipe', this, unpipeInfo);
    return this;
  }

  // slow case. multiple pipe destinations.

  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;

    for (var i = 0; i < len; i++) {
      dests[i].emit('unpipe', this, unpipeInfo);
    }return this;
  }

  // try to find the right one.
  var index = indexOf(state.pipes, dest);
  if (index === -1) return this;

  state.pipes.splice(index, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1) state.pipes = state.pipes[0];

  dest.emit('unpipe', this, unpipeInfo);

  return this;
};

// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function (ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);

  if (ev === 'data') {
    // Start flowing on next tick if stream isn't explicitly paused
    if (this._readableState.flowing !== false) this.resume();
  } else if (ev === 'readable') {
    var state = this._readableState;
    if (!state.endEmitted && !state.readableListening) {
      state.readableListening = state.needReadable = true;
      state.emittedReadable = false;
      if (!state.reading) {
        processNextTick(nReadingNextTick, this);
      } else if (state.length) {
        emitReadable(this);
      }
    }
  }

  return res;
};
Readable.prototype.addListener = Readable.prototype.on;

function nReadingNextTick(self) {
  debug('readable nexttick read 0');
  self.read(0);
}

// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function () {
  var state = this._readableState;
  if (!state.flowing) {
    debug('resume');
    state.flowing = true;
    resume(this, state);
  }
  return this;
};

function resume(stream, state) {
  if (!state.resumeScheduled) {
    state.resumeScheduled = true;
    processNextTick(resume_, stream, state);
  }
}

function resume_(stream, state) {
  if (!state.reading) {
    debug('resume read 0');
    stream.read(0);
  }

  state.resumeScheduled = false;
  state.awaitDrain = 0;
  stream.emit('resume');
  flow(stream);
  if (state.flowing && !state.reading) stream.read(0);
}

Readable.prototype.pause = function () {
  debug('call pause flowing=%j', this._readableState.flowing);
  if (false !== this._readableState.flowing) {
    debug('pause');
    this._readableState.flowing = false;
    this.emit('pause');
  }
  return this;
};

function flow(stream) {
  var state = stream._readableState;
  debug('flow', state.flowing);
  while (state.flowing && stream.read() !== null) {}
}

// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function (stream) {
  var state = this._readableState;
  var paused = false;

  var self = this;
  stream.on('end', function () {
    debug('wrapped end');
    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length) self.push(chunk);
    }

    self.push(null);
  });

  stream.on('data', function (chunk) {
    debug('wrapped data');
    if (state.decoder) chunk = state.decoder.write(chunk);

    // don't skip over falsy values in objectMode
    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;

    var ret = self.push(chunk);
    if (!ret) {
      paused = true;
      stream.pause();
    }
  });

  // proxy all the other methods.
  // important when wrapping filters and duplexes.
  for (var i in stream) {
    if (this[i] === undefined && typeof stream[i] === 'function') {
      this[i] = function (method) {
        return function () {
          return stream[method].apply(stream, arguments);
        };
      }(i);
    }
  }

  // proxy certain important events.
  for (var n = 0; n < kProxyEvents.length; n++) {
    stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n]));
  }

  // when we try to consume some more bytes, simply unpause the
  // underlying stream.
  self._read = function (n) {
    debug('wrapped _read', n);
    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return self;
};

// exposed for testing purposes only.
Readable._fromList = fromList;

// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromList(n, state) {
  // nothing buffered
  if (state.length === 0) return null;

  var ret;
  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
    // read it all, truncate the list
    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
    state.buffer.clear();
  } else {
    // read part of list
    ret = fromListPartial(n, state.buffer, state.decoder);
  }

  return ret;
}

// Extracts only enough buffered data to satisfy the amount requested.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromListPartial(n, list, hasStrings) {
  var ret;
  if (n < list.head.data.length) {
    // slice is the same for buffers and strings
    ret = list.head.data.slice(0, n);
    list.head.data = list.head.data.slice(n);
  } else if (n === list.head.data.length) {
    // first chunk is a perfect match
    ret = list.shift();
  } else {
    // result spans more than one buffer
    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
  }
  return ret;
}

// Copies a specified amount of characters from the list of buffered data
// chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBufferString(n, list) {
  var p = list.head;
  var c = 1;
  var ret = p.data;
  n -= ret.length;
  while (p = p.next) {
    var str = p.data;
    var nb = n > str.length ? str.length : n;
    if (nb === str.length) ret += str;else ret += str.slice(0, n);
    n -= nb;
    if (n === 0) {
      if (nb === str.length) {
        ++c;
        if (p.next) list.head = p.next;else list.head = list.tail = null;
      } else {
        list.head = p;
        p.data = str.slice(nb);
      }
      break;
    }
    ++c;
  }
  list.length -= c;
  return ret;
}

// Copies a specified amount of bytes from the list of buffered data chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBuffer(n, list) {
  var ret = Buffer.allocUnsafe(n);
  var p = list.head;
  var c = 1;
  p.data.copy(ret);
  n -= p.data.length;
  while (p = p.next) {
    var buf = p.data;
    var nb = n > buf.length ? buf.length : n;
    buf.copy(ret, ret.length - n, 0, nb);
    n -= nb;
    if (n === 0) {
      if (nb === buf.length) {
        ++c;
        if (p.next) list.head = p.next;else list.head = list.tail = null;
      } else {
        list.head = p;
        p.data = buf.slice(nb);
      }
      break;
    }
    ++c;
  }
  list.length -= c;
  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;

  // If we get here before consuming all the bytes, then that is a
  // bug in node.  Should never happen.
  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');

  if (!state.endEmitted) {
    state.ended = true;
    processNextTick(endReadableNT, state, stream);
  }
}

function endReadableNT(state, stream) {
  // Check that we didn't get one last unshift.
  if (!state.endEmitted && state.length === 0) {
    state.endEmitted = true;
    stream.readable = false;
    stream.emit('end');
  }
}

function forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

function indexOf(xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }
  return -1;
}
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./_stream_duplex":259,"./internal/streams/BufferList":264,"./internal/streams/destroy":265,"./internal/streams/stream":266,"_process":255,"core-util-is":152,"events":206,"inherits":235,"isarray":239,"process-nextick-args":254,"safe-buffer":281,"string_decoder/":300,"util":38}],262:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.

'use strict';

module.exports = Transform;

var Duplex = require('./_stream_duplex');

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(Transform, Duplex);

function TransformState(stream) {
  this.afterTransform = function (er, data) {
    return afterTransform(stream, er, data);
  };

  this.needTransform = false;
  this.transforming = false;
  this.writecb = null;
  this.writechunk = null;
  this.writeencoding = null;
}

function afterTransform(stream, er, data) {
  var ts = stream._transformState;
  ts.transforming = false;

  var cb = ts.writecb;

  if (!cb) {
    return stream.emit('error', new Error('write callback called multiple times'));
  }

  ts.writechunk = null;
  ts.writecb = null;

  if (data !== null && data !== undefined) stream.push(data);

  cb(er);

  var rs = stream._readableState;
  rs.reading = false;
  if (rs.needReadable || rs.length < rs.highWaterMark) {
    stream._read(rs.highWaterMark);
  }
}

function Transform(options) {
  if (!(this instanceof Transform)) return new Transform(options);

  Duplex.call(this, options);

  this._transformState = new TransformState(this);

  var stream = this;

  // start out asking for a readable event once data is transformed.
  this._readableState.needReadable = true;

  // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.
  this._readableState.sync = false;

  if (options) {
    if (typeof options.transform === 'function') this._transform = options.transform;

    if (typeof options.flush === 'function') this._flush = options.flush;
  }

  // When the writable side finishes, then flush out anything remaining.
  this.once('prefinish', function () {
    if (typeof this._flush === 'function') this._flush(function (er, data) {
      done(stream, er, data);
    });else done(stream);
  });
}

Transform.prototype.push = function (chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
};

// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function (chunk, encoding, cb) {
  throw new Error('_transform() is not implemented');
};

Transform.prototype._write = function (chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;
  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
  }
};

// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function (n) {
  var ts = this._transformState;

  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
    ts.transforming = true;
    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};

Transform.prototype._destroy = function (err, cb) {
  var _this = this;

  Duplex.prototype._destroy.call(this, err, function (err2) {
    cb(err2);
    _this.emit('close');
  });
};

function done(stream, er, data) {
  if (er) return stream.emit('error', er);

  if (data !== null && data !== undefined) stream.push(data);

  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided
  var ws = stream._writableState;
  var ts = stream._transformState;

  if (ws.length) throw new Error('Calling transform done when ws.length != 0');

  if (ts.transforming) throw new Error('Calling transform done when still transforming');

  return stream.push(null);
}
},{"./_stream_duplex":259,"core-util-is":152,"inherits":235}],263:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.

'use strict';

/*<replacement>*/

var processNextTick = require('process-nextick-args');
/*</replacement>*/

module.exports = Writable;

/* <replacement> */
function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
  this.next = null;
}

// It seems a linked list but it is not
// there will be only 2 of these for each stream
function CorkedRequest(state) {
  var _this = this;

  this.next = null;
  this.entry = null;
  this.finish = function () {
    onCorkedFinish(_this, state);
  };
}
/* </replacement> */

/*<replacement>*/
var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
/*</replacement>*/

/*<replacement>*/
var Duplex;
/*</replacement>*/

Writable.WritableState = WritableState;

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var internalUtil = {
  deprecate: require('util-deprecate')
};
/*</replacement>*/

/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/

/*<replacement>*/
var Buffer = require('safe-buffer').Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}
function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
/*</replacement>*/

var destroyImpl = require('./internal/streams/destroy');

util.inherits(Writable, Stream);

function nop() {}

function WritableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // object stream flag to indicate whether or not this stream
  // contains buffers or objects.
  this.objectMode = !!options.objectMode;

  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;

  // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()
  var hwm = options.highWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;

  // cast to ints.
  this.highWaterMark = Math.floor(this.highWaterMark);

  // if _final has been called
  this.finalCalled = false;

  // drain event flag.
  this.needDrain = false;
  // at the start of calling end()
  this.ending = false;
  // when end() has been called, and returned
  this.ended = false;
  // when 'finish' is emitted
  this.finished = false;

  // has it been destroyed
  this.destroyed = false;

  // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.
  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.
  this.length = 0;

  // a flag to see when we're in the middle of a write.
  this.writing = false;

  // when true all writes will be buffered until .uncork() call
  this.corked = 0;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.
  this.bufferProcessing = false;

  // the callback that's passed to _write(chunk,cb)
  this.onwrite = function (er) {
    onwrite(stream, er);
  };

  // the callback that the user supplies to write(chunk,encoding,cb)
  this.writecb = null;

  // the amount that is being written when _write is called.
  this.writelen = 0;

  this.bufferedRequest = null;
  this.lastBufferedRequest = null;

  // number of pending user-supplied write callbacks
  // this must be 0 before 'finish' can be emitted
  this.pendingcb = 0;

  // emit prefinish if the only thing we're waiting for is _write cbs
  // This is relevant for synchronous Transform streams
  this.prefinished = false;

  // True if the error was already emitted and should not be thrown again
  this.errorEmitted = false;

  // count buffered requests
  this.bufferedRequestCount = 0;

  // allocate the first CorkedRequest, there is always
  // one allocated and free to use, and we maintain at most two
  this.corkedRequestsFree = new CorkedRequest(this);
}

WritableState.prototype.getBuffer = function getBuffer() {
  var current = this.bufferedRequest;
  var out = [];
  while (current) {
    out.push(current);
    current = current.next;
  }
  return out;
};

(function () {
  try {
    Object.defineProperty(WritableState.prototype, 'buffer', {
      get: internalUtil.deprecate(function () {
        return this.getBuffer();
      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
    });
  } catch (_) {}
})();

// Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.
var realHasInstance;
if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
  realHasInstance = Function.prototype[Symbol.hasInstance];
  Object.defineProperty(Writable, Symbol.hasInstance, {
    value: function (object) {
      if (realHasInstance.call(this, object)) return true;

      return object && object._writableState instanceof WritableState;
    }
  });
} else {
  realHasInstance = function (object) {
    return object instanceof this;
  };
}

function Writable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  // Writable ctor is applied to Duplexes, too.
  // `realHasInstance` is necessary because using plain `instanceof`
  // would return false, as no `_writableState` property is attached.

  // Trying to use the custom `instanceof` for Writable here will also break the
  // Node.js LazyTransform implementation, which has a non-trivial getter for
  // `_writableState` that would lead to infinite recursion.
  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
    return new Writable(options);
  }

  this._writableState = new WritableState(options, this);

  // legacy.
  this.writable = true;

  if (options) {
    if (typeof options.write === 'function') this._write = options.write;

    if (typeof options.writev === 'function') this._writev = options.writev;

    if (typeof options.destroy === 'function') this._destroy = options.destroy;

    if (typeof options.final === 'function') this._final = options.final;
  }

  Stream.call(this);
}

// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function () {
  this.emit('error', new Error('Cannot pipe, not readable'));
};

function writeAfterEnd(stream, cb) {
  var er = new Error('write after end');
  // TODO: defer error events consistently everywhere, not just the cb
  stream.emit('error', er);
  processNextTick(cb, er);
}

// Checks that a user-supplied chunk is valid, especially for the particular
// mode the stream is in. Currently this means that `null` is never accepted
// and undefined/non-string values are only allowed in object mode.
function validChunk(stream, state, chunk, cb) {
  var valid = true;
  var er = false;

  if (chunk === null) {
    er = new TypeError('May not write null values to stream');
  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  if (er) {
    stream.emit('error', er);
    processNextTick(cb, er);
    valid = false;
  }
  return valid;
}

Writable.prototype.write = function (chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;
  var isBuf = _isUint8Array(chunk) && !state.objectMode;

  if (isBuf && !Buffer.isBuffer(chunk)) {
    chunk = _uint8ArrayToBuffer(chunk);
  }

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;

  if (typeof cb !== 'function') cb = nop;

  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
    state.pendingcb++;
    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
  }

  return ret;
};

Writable.prototype.cork = function () {
  var state = this._writableState;

  state.corked++;
};

Writable.prototype.uncork = function () {
  var state = this._writableState;

  if (state.corked) {
    state.corked--;

    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
  }
};

Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
  // node::ParseEncoding() requires lower case.
  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
  this._writableState.defaultEncoding = encoding;
  return this;
};

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
    chunk = Buffer.from(chunk, encoding);
  }
  return chunk;
}

// if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
  if (!isBuf) {
    var newChunk = decodeChunk(state, chunk, encoding);
    if (chunk !== newChunk) {
      isBuf = true;
      encoding = 'buffer';
      chunk = newChunk;
    }
  }
  var len = state.objectMode ? 1 : chunk.length;

  state.length += len;

  var ret = state.length < state.highWaterMark;
  // we must ensure that previous needDrain will not be reset to false.
  if (!ret) state.needDrain = true;

  if (state.writing || state.corked) {
    var last = state.lastBufferedRequest;
    state.lastBufferedRequest = {
      chunk: chunk,
      encoding: encoding,
      isBuf: isBuf,
      callback: cb,
      next: null
    };
    if (last) {
      last.next = state.lastBufferedRequest;
    } else {
      state.bufferedRequest = state.lastBufferedRequest;
    }
    state.bufferedRequestCount += 1;
  } else {
    doWrite(stream, state, false, len, chunk, encoding, cb);
  }

  return ret;
}

function doWrite(stream, state, writev, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  --state.pendingcb;

  if (sync) {
    // defer the callback if we are being called synchronously
    // to avoid piling up things on the stack
    processNextTick(cb, er);
    // this can emit finish, and it will always happen
    // after error
    processNextTick(finishMaybe, stream, state);
    stream._writableState.errorEmitted = true;
    stream.emit('error', er);
  } else {
    // the caller expect this to happen before if
    // it is async
    cb(er);
    stream._writableState.errorEmitted = true;
    stream.emit('error', er);
    // this can emit finish, but finish must
    // always follow error
    finishMaybe(stream, state);
  }
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;

  onwriteStateUpdate(state);

  if (er) onwriteError(stream, state, sync, er, cb);else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(state);

    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
      clearBuffer(stream, state);
    }

    if (sync) {
      /*<replacement>*/
      asyncWrite(afterWrite, stream, state, finished, cb);
      /*</replacement>*/
    } else {
      afterWrite(stream, state, finished, cb);
    }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished) onwriteDrain(stream, state);
  state.pendingcb--;
  cb();
  finishMaybe(stream, state);
}

// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
}

// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
  state.bufferProcessing = true;
  var entry = state.bufferedRequest;

  if (stream._writev && entry && entry.next) {
    // Fast case, write everything using _writev()
    var l = state.bufferedRequestCount;
    var buffer = new Array(l);
    var holder = state.corkedRequestsFree;
    holder.entry = entry;

    var count = 0;
    var allBuffers = true;
    while (entry) {
      buffer[count] = entry;
      if (!entry.isBuf) allBuffers = false;
      entry = entry.next;
      count += 1;
    }
    buffer.allBuffers = allBuffers;

    doWrite(stream, state, true, state.length, buffer, '', holder.finish);

    // doWrite is almost always async, defer these to save a bit of time
    // as the hot path ends with doWrite
    state.pendingcb++;
    state.lastBufferedRequest = null;
    if (holder.next) {
      state.corkedRequestsFree = holder.next;
      holder.next = null;
    } else {
      state.corkedRequestsFree = new CorkedRequest(state);
    }
  } else {
    // Slow case, write chunks one-by-one
    while (entry) {
      var chunk = entry.chunk;
      var encoding = entry.encoding;
      var cb = entry.callback;
      var len = state.objectMode ? 1 : chunk.length;

      doWrite(stream, state, false, len, chunk, encoding, cb);
      entry = entry.next;
      // if we didn't call the onwrite immediately, then
      // it means that we need to wait until it does.
      // also, that means that the chunk and cb are currently
      // being processed, so move the buffer counter past them.
      if (state.writing) {
        break;
      }
    }

    if (entry === null) state.lastBufferedRequest = null;
  }

  state.bufferedRequestCount = 0;
  state.bufferedRequest = entry;
  state.bufferProcessing = false;
}

Writable.prototype._write = function (chunk, encoding, cb) {
  cb(new Error('_write() is not implemented'));
};

Writable.prototype._writev = null;

Writable.prototype.end = function (chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);

  // .end() fully uncorks
  if (state.corked) {
    state.corked = 1;
    this.uncork();
  }

  // ignore unnecessary end() calls.
  if (!state.ending && !state.finished) endWritable(this, state, cb);
};

function needFinish(state) {
  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}
function callFinal(stream, state) {
  stream._final(function (err) {
    state.pendingcb--;
    if (err) {
      stream.emit('error', err);
    }
    state.prefinished = true;
    stream.emit('prefinish');
    finishMaybe(stream, state);
  });
}
function prefinish(stream, state) {
  if (!state.prefinished && !state.finalCalled) {
    if (typeof stream._final === 'function') {
      state.pendingcb++;
      state.finalCalled = true;
      processNextTick(callFinal, stream, state);
    } else {
      state.prefinished = true;
      stream.emit('prefinish');
    }
  }
}

function finishMaybe(stream, state) {
  var need = needFinish(state);
  if (need) {
    prefinish(stream, state);
    if (state.pendingcb === 0) {
      state.finished = true;
      stream.emit('finish');
    }
  }
  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);
  if (cb) {
    if (state.finished) processNextTick(cb);else stream.once('finish', cb);
  }
  state.ended = true;
  stream.writable = false;
}

function onCorkedFinish(corkReq, state, err) {
  var entry = corkReq.entry;
  corkReq.entry = null;
  while (entry) {
    var cb = entry.callback;
    state.pendingcb--;
    cb(err);
    entry = entry.next;
  }
  if (state.corkedRequestsFree) {
    state.corkedRequestsFree.next = corkReq;
  } else {
    state.corkedRequestsFree = corkReq;
  }
}

Object.defineProperty(Writable.prototype, 'destroyed', {
  get: function () {
    if (this._writableState === undefined) {
      return false;
    }
    return this._writableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._writableState) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._writableState.destroyed = value;
  }
});

Writable.prototype.destroy = destroyImpl.destroy;
Writable.prototype._undestroy = destroyImpl.undestroy;
Writable.prototype._destroy = function (err, cb) {
  this.end();
  cb(err);
};
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./_stream_duplex":259,"./internal/streams/destroy":265,"./internal/streams/stream":266,"_process":255,"core-util-is":152,"inherits":235,"process-nextick-args":254,"safe-buffer":281,"util-deprecate":306}],264:[function(require,module,exports){
'use strict';

/*<replacement>*/

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Buffer = require('safe-buffer').Buffer;
/*</replacement>*/

function copyBuffer(src, target, offset) {
  src.copy(target, offset);
}

module.exports = function () {
  function BufferList() {
    _classCallCheck(this, BufferList);

    this.head = null;
    this.tail = null;
    this.length = 0;
  }

  BufferList.prototype.push = function push(v) {
    var entry = { data: v, next: null };
    if (this.length > 0) this.tail.next = entry;else this.head = entry;
    this.tail = entry;
    ++this.length;
  };

  BufferList.prototype.unshift = function unshift(v) {
    var entry = { data: v, next: this.head };
    if (this.length === 0) this.tail = entry;
    this.head = entry;
    ++this.length;
  };

  BufferList.prototype.shift = function shift() {
    if (this.length === 0) return;
    var ret = this.head.data;
    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
    --this.length;
    return ret;
  };

  BufferList.prototype.clear = function clear() {
    this.head = this.tail = null;
    this.length = 0;
  };

  BufferList.prototype.join = function join(s) {
    if (this.length === 0) return '';
    var p = this.head;
    var ret = '' + p.data;
    while (p = p.next) {
      ret += s + p.data;
    }return ret;
  };

  BufferList.prototype.concat = function concat(n) {
    if (this.length === 0) return Buffer.alloc(0);
    if (this.length === 1) return this.head.data;
    var ret = Buffer.allocUnsafe(n >>> 0);
    var p = this.head;
    var i = 0;
    while (p) {
      copyBuffer(p.data, ret, i);
      i += p.data.length;
      p = p.next;
    }
    return ret;
  };

  return BufferList;
}();
},{"safe-buffer":281}],265:[function(require,module,exports){
'use strict';

/*<replacement>*/

var processNextTick = require('process-nextick-args');
/*</replacement>*/

// undocumented cb() API, needed for core, not for public API
function destroy(err, cb) {
  var _this = this;

  var readableDestroyed = this._readableState && this._readableState.destroyed;
  var writableDestroyed = this._writableState && this._writableState.destroyed;

  if (readableDestroyed || writableDestroyed) {
    if (cb) {
      cb(err);
    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
      processNextTick(emitErrorNT, this, err);
    }
    return;
  }

  // we set destroyed to true before firing error callbacks in order
  // to make it re-entrance safe in case destroy() is called within callbacks

  if (this._readableState) {
    this._readableState.destroyed = true;
  }

  // if this is a duplex stream mark the writable part as destroyed as well
  if (this._writableState) {
    this._writableState.destroyed = true;
  }

  this._destroy(err || null, function (err) {
    if (!cb && err) {
      processNextTick(emitErrorNT, _this, err);
      if (_this._writableState) {
        _this._writableState.errorEmitted = true;
      }
    } else if (cb) {
      cb(err);
    }
  });
}

function undestroy() {
  if (this._readableState) {
    this._readableState.destroyed = false;
    this._readableState.reading = false;
    this._readableState.ended = false;
    this._readableState.endEmitted = false;
  }

  if (this._writableState) {
    this._writableState.destroyed = false;
    this._writableState.ended = false;
    this._writableState.ending = false;
    this._writableState.finished = false;
    this._writableState.errorEmitted = false;
  }
}

function emitErrorNT(self, err) {
  self.emit('error', err);
}

module.exports = {
  destroy: destroy,
  undestroy: undestroy
};
},{"process-nextick-args":254}],266:[function(require,module,exports){
module.exports = require('events').EventEmitter;

},{"events":206}],267:[function(require,module,exports){
module.exports = require('./readable').PassThrough

},{"./readable":268}],268:[function(require,module,exports){
exports = module.exports = require('./lib/_stream_readable.js');
exports.Stream = exports;
exports.Readable = exports;
exports.Writable = require('./lib/_stream_writable.js');
exports.Duplex = require('./lib/_stream_duplex.js');
exports.Transform = require('./lib/_stream_transform.js');
exports.PassThrough = require('./lib/_stream_passthrough.js');

},{"./lib/_stream_duplex.js":259,"./lib/_stream_passthrough.js":260,"./lib/_stream_readable.js":261,"./lib/_stream_transform.js":262,"./lib/_stream_writable.js":263}],269:[function(require,module,exports){
module.exports = require('./readable').Transform

},{"./readable":268}],270:[function(require,module,exports){
module.exports = require('./lib/_stream_writable.js');

},{"./lib/_stream_writable.js":263}],271:[function(require,module,exports){
// This method of obtaining a reference to the global object needs to be
// kept identical to the way it is obtained in runtime.js
var g = (function() { return this })() || Function("return this")();

// Use `getOwnPropertyNames` because not all browsers support calling
// `hasOwnProperty` on the global `self` object in a worker. See #183.
var hadRuntime = g.regeneratorRuntime &&
  Object.getOwnPropertyNames(g).indexOf("regeneratorRuntime") >= 0;

// Save the old regeneratorRuntime in case it needs to be restored later.
var oldRuntime = hadRuntime && g.regeneratorRuntime;

// Force reevalutation of runtime.js.
g.regeneratorRuntime = undefined;

module.exports = require("./runtime");

if (hadRuntime) {
  // Restore the original runtime.
  g.regeneratorRuntime = oldRuntime;
} else {
  // Remove the global property added by runtime.js.
  try {
    delete g.regeneratorRuntime;
  } catch(e) {
    g.regeneratorRuntime = undefined;
  }
}

},{"./runtime":272}],272:[function(require,module,exports){
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
 * additional grant of patent rights can be found in the PATENTS file in
 * the same directory.
 */

!(function(global) {
  "use strict";

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined; // More compressible than void 0.
  var $Symbol = typeof Symbol === "function" ? Symbol : {};
  var iteratorSymbol = $Symbol.iterator || "@@iterator";
  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

  var inModule = typeof module === "object";
  var runtime = global.regeneratorRuntime;
  if (runtime) {
    if (inModule) {
      // If regeneratorRuntime is defined globally and we're in a module,
      // make the exports object identical to regeneratorRuntime.
      module.exports = runtime;
    }
    // Don't bother evaluating the rest of this file if the runtime was
    // already defined globally.
    return;
  }

  // Define the runtime globally (as expected by generated code) as either
  // module.exports (if we're in a module) or a new, empty object.
  runtime = global.regeneratorRuntime = inModule ? module.exports : {};

  function wrap(innerFn, outerFn, self, tryLocsList) {
    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
    var generator = Object.create(protoGenerator.prototype);
    var context = new Context(tryLocsList || []);

    // The ._invoke method unifies the implementations of the .next,
    // .throw, and .return methods.
    generator._invoke = makeInvokeMethod(innerFn, self, context);

    return generator;
  }
  runtime.wrap = wrap;

  // Try/catch helper to minimize deoptimizations. Returns a completion
  // record like context.tryEntries[i].completion. This interface could
  // have been (and was previously) designed to take a closure to be
  // invoked without arguments, but in all the cases we care about we
  // already have an existing method we want to call, so there's no need
  // to create a new function object. We can even get away with assuming
  // the method takes exactly one argument, since that happens to be true
  // in every case, so we don't have to touch the arguments object. The
  // only additional allocation required is the completion record, which
  // has a stable shape and so hopefully should be cheap to allocate.
  function tryCatch(fn, obj, arg) {
    try {
      return { type: "normal", arg: fn.call(obj, arg) };
    } catch (err) {
      return { type: "throw", arg: err };
    }
  }

  var GenStateSuspendedStart = "suspendedStart";
  var GenStateSuspendedYield = "suspendedYield";
  var GenStateExecuting = "executing";
  var GenStateCompleted = "completed";

  // Returning this object from the innerFn has the same effect as
  // breaking out of the dispatch switch statement.
  var ContinueSentinel = {};

  // Dummy constructor functions that we use as the .constructor and
  // .constructor.prototype properties for functions that return Generator
  // objects. For full spec compliance, you may wish to configure your
  // minifier not to mangle the names of these two functions.
  function Generator() {}
  function GeneratorFunction() {}
  function GeneratorFunctionPrototype() {}

  // This is a polyfill for %IteratorPrototype% for environments that
  // don't natively support it.
  var IteratorPrototype = {};
  IteratorPrototype[iteratorSymbol] = function () {
    return this;
  };

  var getProto = Object.getPrototypeOf;
  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
  if (NativeIteratorPrototype &&
      NativeIteratorPrototype !== Op &&
      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
    // This environment has a native %IteratorPrototype%; use it instead
    // of the polyfill.
    IteratorPrototype = NativeIteratorPrototype;
  }

  var Gp = GeneratorFunctionPrototype.prototype =
    Generator.prototype = Object.create(IteratorPrototype);
  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
  GeneratorFunctionPrototype.constructor = GeneratorFunction;
  GeneratorFunctionPrototype[toStringTagSymbol] =
    GeneratorFunction.displayName = "GeneratorFunction";

  // Helper for defining the .next, .throw, and .return methods of the
  // Iterator interface in terms of a single ._invoke method.
  function defineIteratorMethods(prototype) {
    ["next", "throw", "return"].forEach(function(method) {
      prototype[method] = function(arg) {
        return this._invoke(method, arg);
      };
    });
  }

  runtime.isGeneratorFunction = function(genFun) {
    var ctor = typeof genFun === "function" && genFun.constructor;
    return ctor
      ? ctor === GeneratorFunction ||
        // For the native GeneratorFunction constructor, the best we can
        // do is to check its .name property.
        (ctor.displayName || ctor.name) === "GeneratorFunction"
      : false;
  };

  runtime.mark = function(genFun) {
    if (Object.setPrototypeOf) {
      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
    } else {
      genFun.__proto__ = GeneratorFunctionPrototype;
      if (!(toStringTagSymbol in genFun)) {
        genFun[toStringTagSymbol] = "GeneratorFunction";
      }
    }
    genFun.prototype = Object.create(Gp);
    return genFun;
  };

  // Within the body of any async function, `await x` is transformed to
  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
  // `hasOwn.call(value, "__await")` to determine if the yielded value is
  // meant to be awaited.
  runtime.awrap = function(arg) {
    return { __await: arg };
  };

  function AsyncIterator(generator) {
    function invoke(method, arg, resolve, reject) {
      var record = tryCatch(generator[method], generator, arg);
      if (record.type === "throw") {
        reject(record.arg);
      } else {
        var result = record.arg;
        var value = result.value;
        if (value &&
            typeof value === "object" &&
            hasOwn.call(value, "__await")) {
          return Promise.resolve(value.__await).then(function(value) {
            invoke("next", value, resolve, reject);
          }, function(err) {
            invoke("throw", err, resolve, reject);
          });
        }

        return Promise.resolve(value).then(function(unwrapped) {
          // When a yielded Promise is resolved, its final value becomes
          // the .value of the Promise<{value,done}> result for the
          // current iteration. If the Promise is rejected, however, the
          // result for this iteration will be rejected with the same
          // reason. Note that rejections of yielded Promises are not
          // thrown back into the generator function, as is the case
          // when an awaited Promise is rejected. This difference in
          // behavior between yield and await is important, because it
          // allows the consumer to decide what to do with the yielded
          // rejection (swallow it and continue, manually .throw it back
          // into the generator, abandon iteration, whatever). With
          // await, by contrast, there is no opportunity to examine the
          // rejection reason outside the generator function, so the
          // only option is to throw it from the await expression, and
          // let the generator function handle the exception.
          result.value = unwrapped;
          resolve(result);
        }, reject);
      }
    }

    var previousPromise;

    function enqueue(method, arg) {
      function callInvokeWithMethodAndArg() {
        return new Promise(function(resolve, reject) {
          invoke(method, arg, resolve, reject);
        });
      }

      return previousPromise =
        // If enqueue has been called before, then we want to wait until
        // all previous Promises have been resolved before calling invoke,
        // so that results are always delivered in the correct order. If
        // enqueue has not been called before, then it is important to
        // call invoke immediately, without waiting on a callback to fire,
        // so that the async generator function has the opportunity to do
        // any necessary setup in a predictable way. This predictability
        // is why the Promise constructor synchronously invokes its
        // executor callback, and why async functions synchronously
        // execute code before the first await. Since we implement simple
        // async functions in terms of async generators, it is especially
        // important to get this right, even though it requires care.
        previousPromise ? previousPromise.then(
          callInvokeWithMethodAndArg,
          // Avoid propagating failures to Promises returned by later
          // invocations of the iterator.
          callInvokeWithMethodAndArg
        ) : callInvokeWithMethodAndArg();
    }

    // Define the unified helper method that is used to implement .next,
    // .throw, and .return (see defineIteratorMethods).
    this._invoke = enqueue;
  }

  defineIteratorMethods(AsyncIterator.prototype);
  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
    return this;
  };
  runtime.AsyncIterator = AsyncIterator;

  // Note that simple async functions are implemented on top of
  // AsyncIterator objects; they just return a Promise for the value of
  // the final result produced by the iterator.
  runtime.async = function(innerFn, outerFn, self, tryLocsList) {
    var iter = new AsyncIterator(
      wrap(innerFn, outerFn, self, tryLocsList)
    );

    return runtime.isGeneratorFunction(outerFn)
      ? iter // If outerFn is a generator, return the full iterator.
      : iter.next().then(function(result) {
          return result.done ? result.value : iter.next();
        });
  };

  function makeInvokeMethod(innerFn, self, context) {
    var state = GenStateSuspendedStart;

    return function invoke(method, arg) {
      if (state === GenStateExecuting) {
        throw new Error("Generator is already running");
      }

      if (state === GenStateCompleted) {
        if (method === "throw") {
          throw arg;
        }

        // Be forgiving, per 25.3.3.3.3 of the spec:
        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
        return doneResult();
      }

      context.method = method;
      context.arg = arg;

      while (true) {
        var delegate = context.delegate;
        if (delegate) {
          var delegateResult = maybeInvokeDelegate(delegate, context);
          if (delegateResult) {
            if (delegateResult === ContinueSentinel) continue;
            return delegateResult;
          }
        }

        if (context.method === "next") {
          // Setting context._sent for legacy support of Babel's
          // function.sent implementation.
          context.sent = context._sent = context.arg;

        } else if (context.method === "throw") {
          if (state === GenStateSuspendedStart) {
            state = GenStateCompleted;
            throw context.arg;
          }

          context.dispatchException(context.arg);

        } else if (context.method === "return") {
          context.abrupt("return", context.arg);
        }

        state = GenStateExecuting;

        var record = tryCatch(innerFn, self, context);
        if (record.type === "normal") {
          // If an exception is thrown from innerFn, we leave state ===
          // GenStateExecuting and loop back for another invocation.
          state = context.done
            ? GenStateCompleted
            : GenStateSuspendedYield;

          if (record.arg === ContinueSentinel) {
            continue;
          }

          return {
            value: record.arg,
            done: context.done
          };

        } else if (record.type === "throw") {
          state = GenStateCompleted;
          // Dispatch the exception by looping back around to the
          // context.dispatchException(context.arg) call above.
          context.method = "throw";
          context.arg = record.arg;
        }
      }
    };
  }

  // Call delegate.iterator[context.method](context.arg) and handle the
  // result, either by returning a { value, done } result from the
  // delegate iterator, or by modifying context.method and context.arg,
  // setting context.delegate to null, and returning the ContinueSentinel.
  function maybeInvokeDelegate(delegate, context) {
    var method = delegate.iterator[context.method];
    if (method === undefined) {
      // A .throw or .return when the delegate iterator has no .throw
      // method always terminates the yield* loop.
      context.delegate = null;

      if (context.method === "throw") {
        if (delegate.iterator.return) {
          // If the delegate iterator has a return method, give it a
          // chance to clean up.
          context.method = "return";
          context.arg = undefined;
          maybeInvokeDelegate(delegate, context);

          if (context.method === "throw") {
            // If maybeInvokeDelegate(context) changed context.method from
            // "return" to "throw", let that override the TypeError below.
            return ContinueSentinel;
          }
        }

        context.method = "throw";
        context.arg = new TypeError(
          "The iterator does not provide a 'throw' method");
      }

      return ContinueSentinel;
    }

    var record = tryCatch(method, delegate.iterator, context.arg);

    if (record.type === "throw") {
      context.method = "throw";
      context.arg = record.arg;
      context.delegate = null;
      return ContinueSentinel;
    }

    var info = record.arg;

    if (! info) {
      context.method = "throw";
      context.arg = new TypeError("iterator result is not an object");
      context.delegate = null;
      return ContinueSentinel;
    }

    if (info.done) {
      // Assign the result of the finished delegate to the temporary
      // variable specified by delegate.resultName (see delegateYield).
      context[delegate.resultName] = info.value;

      // Resume execution at the desired location (see delegateYield).
      context.next = delegate.nextLoc;

      // If context.method was "throw" but the delegate handled the
      // exception, let the outer generator proceed normally. If
      // context.method was "next", forget context.arg since it has been
      // "consumed" by the delegate iterator. If context.method was
      // "return", allow the original .return call to continue in the
      // outer generator.
      if (context.method !== "return") {
        context.method = "next";
        context.arg = undefined;
      }

    } else {
      // Re-yield the result returned by the delegate method.
      return info;
    }

    // The delegate iterator is finished, so forget it and continue with
    // the outer generator.
    context.delegate = null;
    return ContinueSentinel;
  }

  // Define Generator.prototype.{next,throw,return} in terms of the
  // unified ._invoke helper method.
  defineIteratorMethods(Gp);

  Gp[toStringTagSymbol] = "Generator";

  // A Generator should always return itself as the iterator object when the
  // @@iterator function is called on it. Some browsers' implementations of the
  // iterator prototype chain incorrectly implement this, causing the Generator
  // object to not be returned from this call. This ensures that doesn't happen.
  // See https://github.com/facebook/regenerator/issues/274 for more details.
  Gp[iteratorSymbol] = function() {
    return this;
  };

  Gp.toString = function() {
    return "[object Generator]";
  };

  function pushTryEntry(locs) {
    var entry = { tryLoc: locs[0] };

    if (1 in locs) {
      entry.catchLoc = locs[1];
    }

    if (2 in locs) {
      entry.finallyLoc = locs[2];
      entry.afterLoc = locs[3];
    }

    this.tryEntries.push(entry);
  }

  function resetTryEntry(entry) {
    var record = entry.completion || {};
    record.type = "normal";
    delete record.arg;
    entry.completion = record;
  }

  function Context(tryLocsList) {
    // The root entry object (effectively a try statement without a catch
    // or a finally block) gives us a place to store values thrown from
    // locations where there is no enclosing try statement.
    this.tryEntries = [{ tryLoc: "root" }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
  }

  runtime.keys = function(object) {
    var keys = [];
    for (var key in object) {
      keys.push(key);
    }
    keys.reverse();

    // Rather than returning an object with a next method, we keep
    // things simple and return the next function itself.
    return function next() {
      while (keys.length) {
        var key = keys.pop();
        if (key in object) {
          next.value = key;
          next.done = false;
          return next;
        }
      }

      // To avoid creating an additional object, we just hang the .value
      // and .done properties off the next function object itself. This
      // also ensures that the minifier will not anonymize the function.
      next.done = true;
      return next;
    };
  };

  function values(iterable) {
    if (iterable) {
      var iteratorMethod = iterable[iteratorSymbol];
      if (iteratorMethod) {
        return iteratorMethod.call(iterable);
      }

      if (typeof iterable.next === "function") {
        return iterable;
      }

      if (!isNaN(iterable.length)) {
        var i = -1, next = function next() {
          while (++i < iterable.length) {
            if (hasOwn.call(iterable, i)) {
              next.value = iterable[i];
              next.done = false;
              return next;
            }
          }

          next.value = undefined;
          next.done = true;

          return next;
        };

        return next.next = next;
      }
    }

    // Return an iterator with no values.
    return { next: doneResult };
  }
  runtime.values = values;

  function doneResult() {
    return { value: undefined, done: true };
  }

  Context.prototype = {
    constructor: Context,

    reset: function(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      // Resetting context._sent for legacy support of Babel's
      // function.sent implementation.
      this.sent = this._sent = undefined;
      this.done = false;
      this.delegate = null;

      this.method = "next";
      this.arg = undefined;

      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          // Not sure about the optimal order of these conditions:
          if (name.charAt(0) === "t" &&
              hasOwn.call(this, name) &&
              !isNaN(+name.slice(1))) {
            this[name] = undefined;
          }
        }
      }
    },

    stop: function() {
      this.done = true;

      var rootEntry = this.tryEntries[0];
      var rootRecord = rootEntry.completion;
      if (rootRecord.type === "throw") {
        throw rootRecord.arg;
      }

      return this.rval;
    },

    dispatchException: function(exception) {
      if (this.done) {
        throw exception;
      }

      var context = this;
      function handle(loc, caught) {
        record.type = "throw";
        record.arg = exception;
        context.next = loc;

        if (caught) {
          // If the dispatched exception was caught by a catch block,
          // then let that catch block handle the exception normally.
          context.method = "next";
          context.arg = undefined;
        }

        return !! caught;
      }

      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        var record = entry.completion;

        if (entry.tryLoc === "root") {
          // Exception thrown outside of any try block that could handle
          // it, so set the completion value of the entire function to
          // throw the exception.
          return handle("end");
        }

        if (entry.tryLoc <= this.prev) {
          var hasCatch = hasOwn.call(entry, "catchLoc");
          var hasFinally = hasOwn.call(entry, "finallyLoc");

          if (hasCatch && hasFinally) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            } else if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            }

          } else if (hasFinally) {
            if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else {
            throw new Error("try statement without catch or finally");
          }
        }
      }
    },

    abrupt: function(type, arg) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc <= this.prev &&
            hasOwn.call(entry, "finallyLoc") &&
            this.prev < entry.finallyLoc) {
          var finallyEntry = entry;
          break;
        }
      }

      if (finallyEntry &&
          (type === "break" ||
           type === "continue") &&
          finallyEntry.tryLoc <= arg &&
          arg <= finallyEntry.finallyLoc) {
        // Ignore the finally entry if control is not jumping to a
        // location outside the try/catch block.
        finallyEntry = null;
      }

      var record = finallyEntry ? finallyEntry.completion : {};
      record.type = type;
      record.arg = arg;

      if (finallyEntry) {
        this.method = "next";
        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },

    complete: function(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
      }

      if (record.type === "break" ||
          record.type === "continue") {
        this.next = record.arg;
      } else if (record.type === "return") {
        this.rval = this.arg = record.arg;
        this.method = "return";
        this.next = "end";
      } else if (record.type === "normal" && afterLoc) {
        this.next = afterLoc;
      }

      return ContinueSentinel;
    },

    finish: function(finallyLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },

    "catch": function(tryLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;
          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }
          return thrown;
        }
      }

      // The context.catch method must only be called with a location
      // argument that corresponds to a known catch block.
      throw new Error("illegal catch attempt");
    },

    delegateYield: function(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        // Deliberately forget the last sent value so that we don't
        // accidentally pass it on to the delegate.
        this.arg = undefined;
      }

      return ContinueSentinel;
    }
  };
})(
  // In sloppy mode, unbound `this` refers to the global object, fallback to
  // Function constructor if we're in global strict mode. That is sadly a form
  // of indirect eval which violates Content Security Policy.
  (function() { return this })() || Function("return this")()
);

},{}],273:[function(require,module,exports){
/*!
 * repeat-string <https://github.com/jonschlinkert/repeat-string>
 *
 * Copyright (c) 2014-2015, Jon Schlinkert.
 * Licensed under the MIT License.
 */

'use strict';

/**
 * Results cache
 */

var res = '';
var cache;

/**
 * Expose `repeat`
 */

module.exports = repeat;

/**
 * Repeat the given `string` the specified `number`
 * of times.
 *
 * **Example:**
 *
 * ```js
 * var repeat = require('repeat-string');
 * repeat('A', 5);
 * //=> AAAAA
 * ```
 *
 * @param {String} `string` The string to repeat
 * @param {Number} `number` The number of times to repeat the string
 * @return {String} Repeated string
 * @api public
 */

function repeat(str, num) {
  if (typeof str !== 'string') {
    throw new TypeError('expected a string');
  }

  // cover common, quick use cases
  if (num === 1) return str;
  if (num === 2) return str + str;

  var max = str.length * num;
  if (cache !== str || typeof cache === 'undefined') {
    cache = str;
    res = '';
  } else if (res.length >= max) {
    return res.substr(0, max);
  }

  while (max > res.length && num > 1) {
    if (num & 1) {
      res += str;
    }

    num >>= 1;
    str += str;
  }

  res += str;
  res = res.substr(0, max);
  return res;
}

},{}],274:[function(require,module,exports){
var core = require('./lib/core');
var async = require('./lib/async');
async.core = core;
async.isCore = function isCore(x) { return core[x]; };
async.sync = require('./lib/sync');

exports = async;
module.exports = async;

},{"./lib/async":275,"./lib/core":278,"./lib/sync":280}],275:[function(require,module,exports){
(function (process){
var core = require('./core');
var fs = require('fs');
var path = require('path');
var caller = require('./caller.js');
var nodeModulesPaths = require('./node-modules-paths.js');

module.exports = function resolve(x, options, callback) {
    var cb = callback;
    var opts = options || {};
    if (typeof opts === 'function') {
        cb = opts;
        opts = {};
    }
    if (typeof x !== 'string') {
        var err = new TypeError('Path must be a string.');
        return process.nextTick(function () {
            cb(err);
        });
    }

    var isFile = opts.isFile || function (file, cb) {
        fs.stat(file, function (err, stat) {
            if (!err) {
                return cb(null, stat.isFile() || stat.isFIFO());
            }
            if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
            return cb(err);
        });
    };
    var readFile = opts.readFile || fs.readFile;

    var extensions = opts.extensions || ['.js'];
    var y = opts.basedir || path.dirname(caller());

    opts.paths = opts.paths || [];

    if (/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/.test(x)) {
        var res = path.resolve(y, x);
        if (x === '..' || x.slice(-1) === '/') res += '/';
        if (/\/$/.test(x) && res === y) {
            loadAsDirectory(res, opts.package, onfile);
        } else loadAsFile(res, opts.package, onfile);
    } else loadNodeModules(x, y, function (err, n, pkg) {
        if (err) cb(err);
        else if (n) cb(null, n, pkg);
        else if (core[x]) return cb(null, x);
        else {
            var moduleError = new Error("Cannot find module '" + x + "' from '" + y + "'");
            moduleError.code = 'MODULE_NOT_FOUND';
            cb(moduleError);
        }
    });

    function onfile(err, m, pkg) {
        if (err) cb(err);
        else if (m) cb(null, m, pkg);
        else loadAsDirectory(res, function (err, d, pkg) {
            if (err) cb(err);
            else if (d) cb(null, d, pkg);
            else {
                var moduleError = new Error("Cannot find module '" + x + "' from '" + y + "'");
                moduleError.code = 'MODULE_NOT_FOUND';
                cb(moduleError);
            }
        });
    }

    function loadAsFile(x, thePackage, callback) {
        var loadAsFilePackage = thePackage;
        var cb = callback;
        if (typeof loadAsFilePackage === 'function') {
            cb = loadAsFilePackage;
            loadAsFilePackage = undefined;
        }

        var exts = [''].concat(extensions);
        load(exts, x, loadAsFilePackage);

        function load(exts, x, loadPackage) {
            if (exts.length === 0) return cb(null, undefined, loadPackage);
            var file = x + exts[0];

            var pkg = loadPackage;
            if (pkg) onpkg(null, pkg);
            else loadpkg(path.dirname(file), onpkg);

            function onpkg(err, pkg_, dir) {
                pkg = pkg_;
                if (err) return cb(err);
                if (dir && pkg && opts.pathFilter) {
                    var rfile = path.relative(dir, file);
                    var rel = rfile.slice(0, rfile.length - exts[0].length);
                    var r = opts.pathFilter(pkg, x, rel);
                    if (r) return load(
                        [''].concat(extensions.slice()),
                        path.resolve(dir, r),
                        pkg
                    );
                }
                isFile(file, onex);
            }
            function onex(err, ex) {
                if (err) return cb(err);
                if (ex) return cb(null, file, pkg);
                load(exts.slice(1), x, pkg);
            }
        }
    }

    function loadpkg(dir, cb) {
        if (dir === '' || dir === '/') return cb(null);
        if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
            return cb(null);
        }
        if (/[/\\]node_modules[/\\]*$/.test(dir)) return cb(null);

        var pkgfile = path.join(dir, 'package.json');
        isFile(pkgfile, function (err, ex) {
            // on err, ex is false
            if (!ex) return loadpkg(path.dirname(dir), cb);

            readFile(pkgfile, function (err, body) {
                if (err) cb(err);
                try { var pkg = JSON.parse(body); } catch (jsonErr) {}

                if (pkg && opts.packageFilter) {
                    pkg = opts.packageFilter(pkg, pkgfile);
                }
                cb(null, pkg, dir);
            });
        });
    }

    function loadAsDirectory(x, loadAsDirectoryPackage, callback) {
        var cb = callback;
        var fpkg = loadAsDirectoryPackage;
        if (typeof fpkg === 'function') {
            cb = fpkg;
            fpkg = opts.package;
        }

        var pkgfile = path.join(x, 'package.json');
        isFile(pkgfile, function (err, ex) {
            if (err) return cb(err);
            if (!ex) return loadAsFile(path.join(x, 'index'), fpkg, cb);

            readFile(pkgfile, function (err, body) {
                if (err) return cb(err);
                try {
                    var pkg = JSON.parse(body);
                } catch (jsonErr) {}

                if (opts.packageFilter) {
                    pkg = opts.packageFilter(pkg, pkgfile);
                }

                if (pkg.main) {
                    if (pkg.main === '.' || pkg.main === './') {
                        pkg.main = 'index';
                    }
                    loadAsFile(path.resolve(x, pkg.main), pkg, function (err, m, pkg) {
                        if (err) return cb(err);
                        if (m) return cb(null, m, pkg);
                        if (!pkg) return loadAsFile(path.join(x, 'index'), pkg, cb);

                        var dir = path.resolve(x, pkg.main);
                        loadAsDirectory(dir, pkg, function (err, n, pkg) {
                            if (err) return cb(err);
                            if (n) return cb(null, n, pkg);
                            loadAsFile(path.join(x, 'index'), pkg, cb);
                        });
                    });
                    return;
                }

                loadAsFile(path.join(x, '/index'), pkg, cb);
            });
        });
    }

    function processDirs(cb, dirs) {
        if (dirs.length === 0) return cb(null, undefined);
        var dir = dirs[0];

        var file = path.join(dir, x);
        loadAsFile(file, undefined, onfile);

        function onfile(err, m, pkg) {
            if (err) return cb(err);
            if (m) return cb(null, m, pkg);
            loadAsDirectory(path.join(dir, x), undefined, ondir);
        }

        function ondir(err, n, pkg) {
            if (err) return cb(err);
            if (n) return cb(null, n, pkg);
            processDirs(cb, dirs.slice(1));
        }
    }
    function loadNodeModules(x, start, cb) {
        processDirs(cb, nodeModulesPaths(start, opts));
    }
};

}).call(this,require('_process'))
},{"./caller.js":276,"./core":278,"./node-modules-paths.js":279,"_process":255,"fs":39,"path":251}],276:[function(require,module,exports){
module.exports = function () {
    // see https://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
    var origPrepareStackTrace = Error.prepareStackTrace;
    Error.prepareStackTrace = function (_, stack) { return stack; };
    var stack = (new Error()).stack;
    Error.prepareStackTrace = origPrepareStackTrace;
    return stack[2].getFileName();
};

},{}],277:[function(require,module,exports){
module.exports={
    "*": [
        "assert",
        "buffer_ieee754",
        "buffer",
        "child_process",
        "cluster",
        "console",
        "constants",
        "crypto",
        "_debugger",
        "dgram",
        "dns",
        "domain",
        "events",
        "freelist",
        "fs",
        "http",
        "https",
        "_linklist",
        "module",
        "net",
        "os",
        "path",
        "punycode",
        "querystring",
        "readline",
        "repl",
        "stream",
        "string_decoder",
        "sys",
        "timers",
        "tls",
        "tty",
        "url",
        "util",
        "vm",
        "zlib"
    ],
    "0.11": [
        "_http_server"
    ],
    "1.0": [
        "process",
        "v8"
    ]
}

},{}],278:[function(require,module,exports){
(function (process){
var current = (process.versions && process.versions.node && process.versions.node.split('.')) || [];

function versionIncluded(version) {
    if (version === '*') return true;
    var versionParts = version.split('.');
    for (var i = 0; i < 3; ++i) {
        if ((current[i] || 0) >= (versionParts[i] || 0)) return true;
    }
    return false;
}

var data = require('./core.json');

var core = {};
for (var version in data) { // eslint-disable-line no-restricted-syntax
    if (Object.prototype.hasOwnProperty.call(data, version) && versionIncluded(version)) {
        for (var i = 0; i < data[version].length; ++i) {
            core[data[version][i]] = true;
        }
    }
}
module.exports = core;

}).call(this,require('_process'))
},{"./core.json":277,"_process":255}],279:[function(require,module,exports){
var path = require('path');
var fs = require('fs');
var parse = path.parse || require('path-parse');

module.exports = function nodeModulesPaths(start, opts) {
    var modules = opts && opts.moduleDirectory
        ? [].concat(opts.moduleDirectory)
        : ['node_modules'];

    // ensure that `start` is an absolute path at this point,
    // resolving against the process' current working directory
    var absoluteStart = path.resolve(start);

    if (opts && opts.preserveSymlinks === false) {
        try {
            absoluteStart = fs.realpathSync(absoluteStart);
        } catch (err) {
            if (err.code !== 'ENOENT') {
                throw err;
            }
        }
    }

    var prefix = '/';
    if (/^([A-Za-z]:)/.test(absoluteStart)) {
        prefix = '';
    } else if (/^\\\\/.test(absoluteStart)) {
        prefix = '\\\\';
    }

    var paths = [absoluteStart];
    var parsed = parse(absoluteStart);
    while (parsed.dir !== paths[paths.length - 1]) {
        paths.push(parsed.dir);
        parsed = parse(parsed.dir);
    }

    var dirs = paths.reduce(function (dirs, aPath) {
        return dirs.concat(modules.map(function (moduleDir) {
            return path.join(prefix, aPath, moduleDir);
        }));
    }, []);

    return opts && opts.paths ? dirs.concat(opts.paths) : dirs;
};

},{"fs":39,"path":251,"path-parse":253}],280:[function(require,module,exports){
var core = require('./core');
var fs = require('fs');
var path = require('path');
var caller = require('./caller.js');
var nodeModulesPaths = require('./node-modules-paths.js');

module.exports = function (x, options) {
    if (typeof x !== 'string') {
        throw new TypeError('Path must be a string.');
    }
    var opts = options || {};
    var isFile = opts.isFile || function (file) {
        try {
            var stat = fs.statSync(file);
        } catch (e) {
            if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
            throw e;
        }
        return stat.isFile() || stat.isFIFO();
    };
    var readFileSync = opts.readFileSync || fs.readFileSync;

    var extensions = opts.extensions || ['.js'];
    var y = opts.basedir || path.dirname(caller());

    opts.paths = opts.paths || [];

    if (/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/.test(x)) {
        var res = path.resolve(y, x);
        if (x === '..' || x.slice(-1) === '/') res += '/';
        var m = loadAsFileSync(res) || loadAsDirectorySync(res);
        if (m) return m;
    } else {
        var n = loadNodeModulesSync(x, y);
        if (n) return n;
    }

    if (core[x]) return x;

    var err = new Error("Cannot find module '" + x + "' from '" + y + "'");
    err.code = 'MODULE_NOT_FOUND';
    throw err;

    function loadAsFileSync(x) {
        if (isFile(x)) {
            return x;
        }

        for (var i = 0; i < extensions.length; i++) {
            var file = x + extensions[i];
            if (isFile(file)) {
                return file;
            }
        }
    }

    function loadAsDirectorySync(x) {
        var pkgfile = path.join(x, '/package.json');
        if (isFile(pkgfile)) {
            try {
                var body = readFileSync(pkgfile, 'UTF8');
                var pkg = JSON.parse(body);

                if (opts.packageFilter) {
                    pkg = opts.packageFilter(pkg, x);
                }

                if (pkg.main) {
                    if (pkg.main === '.' || pkg.main === './') {
                        pkg.main = 'index';
                    }
                    var m = loadAsFileSync(path.resolve(x, pkg.main));
                    if (m) return m;
                    var n = loadAsDirectorySync(path.resolve(x, pkg.main));
                    if (n) return n;
                }
            } catch (e) {}
        }

        return loadAsFileSync(path.join(x, '/index'));
    }

    function loadNodeModulesSync(x, start) {
        var dirs = nodeModulesPaths(start, opts);
        for (var i = 0; i < dirs.length; i++) {
            var dir = dirs[i];
            var m = loadAsFileSync(path.join(dir, '/', x));
            if (m) return m;
            var n = loadAsDirectorySync(path.join(dir, '/', x));
            if (n) return n;
        }
    }
};

},{"./caller.js":276,"./core":278,"./node-modules-paths.js":279,"fs":39,"path":251}],281:[function(require,module,exports){
/* eslint-disable node/no-deprecated-api */
var buffer = require('buffer')
var Buffer = buffer.Buffer

// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
  for (var key in src) {
    dst[key] = src[key]
  }
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports)
  exports.Buffer = SafeBuffer
}

function SafeBuffer (arg, encodingOrOffset, length) {
  return Buffer(arg, encodingOrOffset, length)
}

// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer)

SafeBuffer.from = function (arg, encodingOrOffset, length) {
  if (typeof arg === 'number') {
    throw new TypeError('Argument must not be a number')
  }
  return Buffer(arg, encodingOrOffset, length)
}

SafeBuffer.alloc = function (size, fill, encoding) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  var buf = Buffer(size)
  if (fill !== undefined) {
    if (typeof encoding === 'string') {
      buf.fill(fill, encoding)
    } else {
      buf.fill(fill)
    }
  } else {
    buf.fill(0)
  }
  return buf
}

SafeBuffer.allocUnsafe = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return Buffer(size)
}

SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return buffer.SlowBuffer(size)
}

},{"buffer":40}],282:[function(require,module,exports){
(function (global){
'use strict';

var width = 256;// each RC4 output is 0 <= x < 256
var chunks = 6;// at least six RC4 outputs for each double
var digits = 52;// there are 52 significant digits in a double
var pool = [];// pool: entropy pool starts empty
var GLOBAL = typeof global === 'undefined' ? window : global;

//
// The following constants are related to IEEE 754 limits.
//
var startdenom = Math.pow(width, chunks),
    significance = Math.pow(2, digits),
    overflow = significance * 2,
    mask = width - 1;


var oldRandom = Math.random;

//
// seedrandom()
// This is the seedrandom function described above.
//
module.exports = function(seed, options) {
  if (options && options.global === true) {
    options.global = false;
    Math.random = module.exports(seed, options);
    options.global = true;
    return Math.random;
  }
  var use_entropy = (options && options.entropy) || false;
  var key = [];

  // Flatten the seed string or build one from local entropy if needed.
  var shortseed = mixkey(flatten(
    use_entropy ? [seed, tostring(pool)] :
    0 in arguments ? seed : autoseed(), 3), key);

  // Use the seed to initialize an ARC4 generator.
  var arc4 = new ARC4(key);

  // Mix the randomness into accumulated entropy.
  mixkey(tostring(arc4.S), pool);

  // Override Math.random

  // This function returns a random double in [0, 1) that contains
  // randomness in every bit of the mantissa of the IEEE 754 value.

  return function() {         // Closure to return a random double:
    var n = arc4.g(chunks),             // Start with a numerator n < 2 ^ 48
        d = startdenom,                 //   and denominator d = 2 ^ 48.
        x = 0;                          //   and no 'extra last byte'.
    while (n < significance) {          // Fill up all significant digits by
      n = (n + x) * width;              //   shifting numerator and
      d *= width;                       //   denominator and generating a
      x = arc4.g(1);                    //   new least-significant-byte.
    }
    while (n >= overflow) {             // To avoid rounding up, before adding
      n /= 2;                           //   last byte, shift everything
      d /= 2;                           //   right using integer Math until
      x >>>= 1;                         //   we have exactly the desired bits.
    }
    return (n + x) / d;                 // Form the number within [0, 1).
  };
};

module.exports.resetGlobal = function () {
  Math.random = oldRandom;
};

//
// ARC4
//
// An ARC4 implementation.  The constructor takes a key in the form of
// an array of at most (width) integers that should be 0 <= x < (width).
//
// The g(count) method returns a pseudorandom integer that concatenates
// the next (count) outputs from ARC4.  Its return value is a number x
// that is in the range 0 <= x < (width ^ count).
//
/** @constructor */
function ARC4(key) {
  var t, keylen = key.length,
      me = this, i = 0, j = me.i = me.j = 0, s = me.S = [];

  // The empty key [] is treated as [0].
  if (!keylen) { key = [keylen++]; }

  // Set up S using the standard key scheduling algorithm.
  while (i < width) {
    s[i] = i++;
  }
  for (i = 0; i < width; i++) {
    s[i] = s[j = mask & (j + key[i % keylen] + (t = s[i]))];
    s[j] = t;
  }

  // The "g" method returns the next (count) outputs as one number.
  (me.g = function(count) {
    // Using instance members instead of closure state nearly doubles speed.
    var t, r = 0,
        i = me.i, j = me.j, s = me.S;
    while (count--) {
      t = s[i = mask & (i + 1)];
      r = r * width + s[mask & ((s[i] = s[j = mask & (j + t)]) + (s[j] = t))];
    }
    me.i = i; me.j = j;
    return r;
    // For robust unpredictability discard an initial batch of values.
    // See http://www.rsa.com/rsalabs/node.asp?id=2009
  })(width);
}

//
// flatten()
// Converts an object tree to nested arrays of strings.
//
function flatten(obj, depth) {
  var result = [], typ = (typeof obj)[0], prop;
  if (depth && typ == 'o') {
    for (prop in obj) {
      try { result.push(flatten(obj[prop], depth - 1)); } catch (e) {}
    }
  }
  return (result.length ? result : typ == 's' ? obj : obj + '\0');
}

//
// mixkey()
// Mixes a string seed into a key that is an array of integers, and
// returns a shortened string seed that is equivalent to the result key.
//
function mixkey(seed, key) {
  var stringseed = seed + '', smear, j = 0;
  while (j < stringseed.length) {
    key[mask & j] =
      mask & ((smear ^= key[mask & j] * 19) + stringseed.charCodeAt(j++));
  }
  return tostring(key);
}

//
// autoseed()
// Returns an object for autoseeding, using window.crypto if available.
//
/** @param {Uint8Array=} seed */
function autoseed(seed) {
  try {
    GLOBAL.crypto.getRandomValues(seed = new Uint8Array(width));
    return tostring(seed);
  } catch (e) {
    return [+new Date, GLOBAL, GLOBAL.navigator && GLOBAL.navigator.plugins,
            GLOBAL.screen, tostring(pool)];
  }
}

//
// tostring()
// Converts an array of charcodes to a string
//
function tostring(a) {
  return String.fromCharCode.apply(0, a);
}

//
// When seedrandom.js is loaded, we immediately mix a few bits
// from the built-in RNG into the entropy pool.  Because we do
// not want to intefere with determinstic PRNG state later,
// seedrandom will not call Math.random on its own again after
// initialization.
//
mixkey(Math.random(), pool);

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],283:[function(require,module,exports){
// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
//     * Neither the name of Google Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

function FormatErrorString(error) {
  try {
    return Error.prototype.toString.call(error);
  } catch (e) {
    try {
      return "<error: " + e + ">";
    } catch (ee) {
      return "<error>";
    }
  }
}

module.exports = function FormatStackTrace(error, frames) {
  var lines = [];
  lines.push(FormatErrorString(error));
  for (var i = 0; i < frames.length; i++) {
    var frame = frames[i];
    var line;
    try {
      line = frame.toString();
    } catch (e) {
      try {
        line = "<error: " + e + ">";
      } catch (ee) {
        // Any code that reaches this point is seriously nasty!
        line = "<error>";
      }
    }
    lines.push("    at " + line);
  }
  return lines.join("\n");
};

},{}],284:[function(require,module,exports){
(function (global){
// If a another copy (same version or not) of stack-chain exists it will result
// in wrong stack traces (most likely dublicate callSites).
if (global._stackChain) {
  // In case the version match, we can simply return the first initialized copy
  if (global._stackChain.version === require('./package.json').version) {
    module.exports = global._stackChain;
  }
  // The version don't match, this is really bad. Lets just throw
  else {
    throw new Error('Conflicting version of stack-chain found');
  }
}
// Yay, no other stack-chain copy exists, yet :/
else {
  module.exports = global._stackChain = require('./stack-chain');
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./package.json":285,"./stack-chain":286}],285:[function(require,module,exports){
module.exports={
  "name": "stack-chain",
  "description": "API for combining call site modifiers",
  "version": "2.0.0",
  "author": "Andreas Madsen <amwebdk@gmail.com>",
  "scripts": {
    "test": "tap ./test/simple/*"
  },
  "repository": {
    "type": "git",
    "url": "git://github.com/AndreasMadsen/stack-chain.git"
  },
  "keywords": [
    "stack",
    "chain",
    "trace",
    "call site",
    "concat",
    "format"
  ],
  "devDependencies": {
    "tap": "2.x.x",
    "uglify-js": "2.5.x"
  },
  "license": "MIT"
}

},{}],286:[function(require,module,exports){

// use a already existing formater or fallback to the default v8 formater
var defaultFormater = require('./format.js');
var originalCallSiteSymbol = Symbol('originalCallSite');
var mutatedCallSiteSymbol = Symbol('mutatedCallSite');

// public define API
function stackChain() {
  this.extend = new TraceModifier();
  this.filter = new TraceModifier();
  this.format = new StackFormater();
  this.version = require('./package.json').version;
}


var SHORTCIRCUIT_CALLSITE = false;
stackChain.prototype.callSite = function collectCallSites(options) {
  if (!options) options = {};

  // Get CallSites
  SHORTCIRCUIT_CALLSITE = true;
  var obj = {};
  Error.captureStackTrace(obj, collectCallSites);
  var callSites = obj.stack;
  SHORTCIRCUIT_CALLSITE = false;

  // Slice
  callSites = callSites.slice(options.slice || 0);

  // Modify CallSites
  if (options.extend) callSites = this.extend._modify(obj, callSites);
  if (options.filter) callSites = this.filter._modify(obj, callSites);

  // Done
  return callSites;
};

stackChain.prototype.originalCallSite = function (error) {
  error.stack;
  return error[originalCallSiteSymbol];
};

stackChain.prototype.mutatedCallSite = function (error) {
  error.stack;
  return error[mutatedCallSiteSymbol];
};

var chain = new stackChain();

function TraceModifier() {
  this._modifiers = [];
}

TraceModifier.prototype._modify = function (error, frames) {
  for (var i = 0, l = this._modifiers.length; i < l; i++) {
    frames = this._modifiers[i](error, frames);
  }

  return frames;
};

TraceModifier.prototype.attach = function (modifier) {
  this._modifiers.push(modifier);
};

TraceModifier.prototype.deattach = function (modifier) {
  var index = this._modifiers.indexOf(modifier);

  if (index === -1) return false;

  this._modifiers.splice(index, 1);
  return true;
};

function StackFormater() {
  this._formater = defaultFormater;
  this._previous = undefined;
}

StackFormater.prototype.replace = function (formater) {
  if (formater) {
    this._formater = formater;
  } else {
    this.restore();
  }
};

StackFormater.prototype.restore  = function () {
  this._formater = defaultFormater;
  this._previous = undefined;
};

StackFormater.prototype._backup = function () {
  this._previous = this._formater;
};

StackFormater.prototype._roolback = function () {
  if (this._previous === defaultFormater) {
    this.replace(undefined);
  } else {
    this.replace(this._previous);
  }

  this._previous = undefined;
};


//
// Set Error.prepareStackTrace thus allowing stack-chain
// to take control of the Error().stack formating.
//

// If there already is a custom stack formater, then set
// that as the stack-chain formater.
if (Error.prepareStackTrace) {
    chain.format.replace(Error.prepareStackTrace);
}

var SHORTCIRCUIT_FORMATER = false;
function prepareStackTrace(error, originalFrames) {
  if (SHORTCIRCUIT_CALLSITE) return originalFrames;
  if (SHORTCIRCUIT_FORMATER) return defaultFormater(error, originalFrames);

  // Make a loss copy of originalFrames
  var frames = originalFrames.concat();

  // extend frames
  frames = chain.extend._modify(error, frames);

  // filter frames
  frames = chain.filter._modify(error, frames);

  // reduce frames to match Error.stackTraceLimit
  frames = frames.slice(0, Error.stackTraceLimit);

  // Set the callSite property
  // But only if it hasn't been explicitly set, otherwise
  // error.stack would have unintended side effects. Check also for
  // non-extensible/sealed objects, such as those from Google's Closure Library
  if (Object.isExtensible(error)) {
    error[originalCallSiteSymbol] = originalFrames;
    error[mutatedCallSiteSymbol] = frames;
  }

  // format frames
  SHORTCIRCUIT_FORMATER = true;
  var format = chain.format._formater(error, frames);
  SHORTCIRCUIT_FORMATER = false;

  return format;
}

// Replace the v8 stack trace creator
Object.defineProperty(Error, 'prepareStackTrace', {
  'get': function () {
    return prepareStackTrace;
  },

  'set': function (formater) {
    // If formater is prepareStackTrace it means that someone ran
    // var old = Error.prepareStackTrace;
    // Error.prepareStackTrace = custom
    // new Error().stack
    // Error.prepareStackTrace = old;
    // The effect of this, should be that the old behaviour is restored.
    if (formater === prepareStackTrace) {
      chain.format._roolback();
    }
    // Error.prepareStackTrace was set, this means that someone is
    // trying to take control of the Error().stack format. Make
    // them belive they succeeded by setting them up as the stack-chain
    // formater.
    else {
      chain.format._backup();
      chain.format.replace(formater);
    }
  }
});

module.exports = chain;

},{"./format.js":283,"./package.json":285}],287:[function(require,module,exports){
(function(root, factory) {
    'use strict';
    // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.

    /* istanbul ignore next */
    if (typeof define === 'function' && define.amd) {
        define('stack-generator', ['stackframe'], factory);
    } else if (typeof exports === 'object') {
        module.exports = factory(require('stackframe'));
    } else {
        root.StackGenerator = factory(root.StackFrame);
    }
}(this, function(StackFrame) {
    return {
        backtrace: function StackGenerator$$backtrace(opts) {
            var stack = [];
            var maxStackSize = 10;

            if (typeof opts === 'object' && typeof opts.maxStackSize === 'number') {
                maxStackSize = opts.maxStackSize;
            }

            var curr = arguments.callee;
            while (curr && stack.length < maxStackSize) {
                // Allow V8 optimizations
                var args = new Array(curr['arguments'].length);
                for (var i = 0; i < args.length; ++i) {
                    args[i] = curr['arguments'][i];
                }
                if (/function(?:\s+([\w$]+))+\s*\(/.test(curr.toString())) {
                    stack.push(new StackFrame({functionName: RegExp.$1 || undefined, args: args}));
                } else {
                    stack.push(new StackFrame({args: args}));
                }

                try {
                    curr = curr.caller;
                } catch (e) {
                    break;
                }
            }
            return stack;
        }
    };
}));

},{"stackframe":288}],288:[function(require,module,exports){
(function(root, factory) {
    'use strict';
    // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.

    /* istanbul ignore next */
    if (typeof define === 'function' && define.amd) {
        define('stackframe', [], factory);
    } else if (typeof exports === 'object') {
        module.exports = factory();
    } else {
        root.StackFrame = factory();
    }
}(this, function() {
    'use strict';
    function _isNumber(n) {
        return !isNaN(parseFloat(n)) && isFinite(n);
    }

    function _capitalize(str) {
        return str.charAt(0).toUpperCase() + str.substring(1);
    }

    function _getter(p) {
        return function() {
            return this[p];
        };
    }

    var booleanProps = ['isConstructor', 'isEval', 'isNative', 'isToplevel'];
    var numericProps = ['columnNumber', 'lineNumber'];
    var stringProps = ['fileName', 'functionName', 'source'];
    var arrayProps = ['args'];

    var props = booleanProps.concat(numericProps, stringProps, arrayProps);

    function StackFrame(obj) {
        if (obj instanceof Object) {
            for (var i = 0; i < props.length; i++) {
                if (obj.hasOwnProperty(props[i]) && obj[props[i]] !== undefined) {
                    this['set' + _capitalize(props[i])](obj[props[i]]);
                }
            }
        }
    }

    StackFrame.prototype = {
        getArgs: function() {
            return this.args;
        },
        setArgs: function(v) {
            if (Object.prototype.toString.call(v) !== '[object Array]') {
                throw new TypeError('Args must be an Array');
            }
            this.args = v;
        },

        getEvalOrigin: function() {
            return this.evalOrigin;
        },
        setEvalOrigin: function(v) {
            if (v instanceof StackFrame) {
                this.evalOrigin = v;
            } else if (v instanceof Object) {
                this.evalOrigin = new StackFrame(v);
            } else {
                throw new TypeError('Eval Origin must be an Object or StackFrame');
            }
        },

        toString: function() {
            var functionName = this.getFunctionName() || '{anonymous}';
            var args = '(' + (this.getArgs() || []).join(',') + ')';
            var fileName = this.getFileName() ? ('@' + this.getFileName()) : '';
            var lineNumber = _isNumber(this.getLineNumber()) ? (':' + this.getLineNumber()) : '';
            var columnNumber = _isNumber(this.getColumnNumber()) ? (':' + this.getColumnNumber()) : '';
            return functionName + args + fileName + lineNumber + columnNumber;
        }
    };

    for (var i = 0; i < booleanProps.length; i++) {
        StackFrame.prototype['get' + _capitalize(booleanProps[i])] = _getter(booleanProps[i]);
        StackFrame.prototype['set' + _capitalize(booleanProps[i])] = (function(p) {
            return function(v) {
                this[p] = Boolean(v);
            };
        })(booleanProps[i]);
    }

    for (var j = 0; j < numericProps.length; j++) {
        StackFrame.prototype['get' + _capitalize(numericProps[j])] = _getter(numericProps[j]);
        StackFrame.prototype['set' + _capitalize(numericProps[j])] = (function(p) {
            return function(v) {
                if (!_isNumber(v)) {
                    throw new TypeError(p + ' must be a Number');
                }
                this[p] = Number(v);
            };
        })(numericProps[j]);
    }

    for (var k = 0; k < stringProps.length; k++) {
        StackFrame.prototype['get' + _capitalize(stringProps[k])] = _getter(stringProps[k]);
        StackFrame.prototype['set' + _capitalize(stringProps[k])] = (function(p) {
            return function(v) {
                this[p] = String(v);
            };
        })(stringProps[k]);
    }

    return StackFrame;
}));

},{}],289:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util = require('./util');
var has = Object.prototype.hasOwnProperty;

/**
 * A data structure which is a combination of an array and a set. Adding a new
 * member is O(1), testing for membership is O(1), and finding the index of an
 * element is O(1). Removing elements from the set is not supported. Only
 * strings are supported for membership.
 */
function ArraySet() {
  this._array = [];
  this._set = Object.create(null);
}

/**
 * Static method for creating ArraySet instances from an existing array.
 */
ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
  var set = new ArraySet();
  for (var i = 0, len = aArray.length; i < len; i++) {
    set.add(aArray[i], aAllowDuplicates);
  }
  return set;
};

/**
 * Return how many unique items are in this ArraySet. If duplicates have been
 * added, than those do not count towards the size.
 *
 * @returns Number
 */
ArraySet.prototype.size = function ArraySet_size() {
  return Object.getOwnPropertyNames(this._set).length;
};

/**
 * Add the given string to this set.
 *
 * @param String aStr
 */
ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
  var sStr = util.toSetString(aStr);
  var isDuplicate = has.call(this._set, sStr);
  var idx = this._array.length;
  if (!isDuplicate || aAllowDuplicates) {
    this._array.push(aStr);
  }
  if (!isDuplicate) {
    this._set[sStr] = idx;
  }
};

/**
 * Is the given string a member of this set?
 *
 * @param String aStr
 */
ArraySet.prototype.has = function ArraySet_has(aStr) {
  var sStr = util.toSetString(aStr);
  return has.call(this._set, sStr);
};

/**
 * What is the index of the given string in the array?
 *
 * @param String aStr
 */
ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
  var sStr = util.toSetString(aStr);
  if (has.call(this._set, sStr)) {
    return this._set[sStr];
  }
  throw new Error('"' + aStr + '" is not in the set.');
};

/**
 * What is the element at the given index?
 *
 * @param Number aIdx
 */
ArraySet.prototype.at = function ArraySet_at(aIdx) {
  if (aIdx >= 0 && aIdx < this._array.length) {
    return this._array[aIdx];
  }
  throw new Error('No element indexed by ' + aIdx);
};

/**
 * Returns the array representation of this set (which has the proper indices
 * indicated by indexOf). Note that this is a copy of the internal array used
 * for storing the members so that no one can mess with internal state.
 */
ArraySet.prototype.toArray = function ArraySet_toArray() {
  return this._array.slice();
};

exports.ArraySet = ArraySet;

},{"./util":295}],290:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 *
 * Based on the Base 64 VLQ implementation in Closure Compiler:
 * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
 *
 * Copyright 2011 The Closure Compiler Authors. All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *  * Neither the name of Google Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

var base64 = require('./base64');

// A single base 64 digit can contain 6 bits of data. For the base 64 variable
// length quantities we use in the source map spec, the first bit is the sign,
// the next four bits are the actual value, and the 6th bit is the
// continuation bit. The continuation bit tells us whether there are more
// digits in this value following this digit.
//
//   Continuation
//   |    Sign
//   |    |
//   V    V
//   101011

var VLQ_BASE_SHIFT = 5;

// binary: 100000
var VLQ_BASE = 1 << VLQ_BASE_SHIFT;

// binary: 011111
var VLQ_BASE_MASK = VLQ_BASE - 1;

// binary: 100000
var VLQ_CONTINUATION_BIT = VLQ_BASE;

/**
 * Converts from a two-complement value to a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
 *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
 */
function toVLQSigned(aValue) {
  return aValue < 0
    ? ((-aValue) << 1) + 1
    : (aValue << 1) + 0;
}

/**
 * Converts to a two-complement value from a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
 *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
 */
function fromVLQSigned(aValue) {
  var isNegative = (aValue & 1) === 1;
  var shifted = aValue >> 1;
  return isNegative
    ? -shifted
    : shifted;
}

/**
 * Returns the base 64 VLQ encoded value.
 */
exports.encode = function base64VLQ_encode(aValue) {
  var encoded = "";
  var digit;

  var vlq = toVLQSigned(aValue);

  do {
    digit = vlq & VLQ_BASE_MASK;
    vlq >>>= VLQ_BASE_SHIFT;
    if (vlq > 0) {
      // There are still more digits in this value, so we must make sure the
      // continuation bit is marked.
      digit |= VLQ_CONTINUATION_BIT;
    }
    encoded += base64.encode(digit);
  } while (vlq > 0);

  return encoded;
};

/**
 * Decodes the next base 64 VLQ value from the given string and returns the
 * value and the rest of the string via the out parameter.
 */
exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
  var strLen = aStr.length;
  var result = 0;
  var shift = 0;
  var continuation, digit;

  do {
    if (aIndex >= strLen) {
      throw new Error("Expected more digits in base 64 VLQ value.");
    }

    digit = base64.decode(aStr.charCodeAt(aIndex++));
    if (digit === -1) {
      throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
    }

    continuation = !!(digit & VLQ_CONTINUATION_BIT);
    digit &= VLQ_BASE_MASK;
    result = result + (digit << shift);
    shift += VLQ_BASE_SHIFT;
  } while (continuation);

  aOutParam.value = fromVLQSigned(result);
  aOutParam.rest = aIndex;
};

},{"./base64":291}],291:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');

/**
 * Encode an integer in the range of 0 to 63 to a single base 64 digit.
 */
exports.encode = function (number) {
  if (0 <= number && number < intToCharMap.length) {
    return intToCharMap[number];
  }
  throw new TypeError("Must be between 0 and 63: " + number);
};

/**
 * Decode a single base 64 character code digit to an integer. Returns -1 on
 * failure.
 */
exports.decode = function (charCode) {
  var bigA = 65;     // 'A'
  var bigZ = 90;     // 'Z'

  var littleA = 97;  // 'a'
  var littleZ = 122; // 'z'

  var zero = 48;     // '0'
  var nine = 57;     // '9'

  var plus = 43;     // '+'
  var slash = 47;    // '/'

  var littleOffset = 26;
  var numberOffset = 52;

  // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
  if (bigA <= charCode && charCode <= bigZ) {
    return (charCode - bigA);
  }

  // 26 - 51: abcdefghijklmnopqrstuvwxyz
  if (littleA <= charCode && charCode <= littleZ) {
    return (charCode - littleA + littleOffset);
  }

  // 52 - 61: 0123456789
  if (zero <= charCode && charCode <= nine) {
    return (charCode - zero + numberOffset);
  }

  // 62: +
  if (charCode == plus) {
    return 62;
  }

  // 63: /
  if (charCode == slash) {
    return 63;
  }

  // Invalid base64 digit.
  return -1;
};

},{}],292:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

exports.GREATEST_LOWER_BOUND = 1;
exports.LEAST_UPPER_BOUND = 2;

/**
 * Recursive implementation of binary search.
 *
 * @param aLow Indices here and lower do not contain the needle.
 * @param aHigh Indices here and higher do not contain the needle.
 * @param aNeedle The element being searched for.
 * @param aHaystack The non-empty array being searched.
 * @param aCompare Function which takes two elements and returns -1, 0, or 1.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 */
function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
  // This function terminates when one of the following is true:
  //
  //   1. We find the exact element we are looking for.
  //
  //   2. We did not find the exact element, but we can return the index of
  //      the next-closest element.
  //
  //   3. We did not find the exact element, and there is no next-closest
  //      element than the one we are searching for, so we return -1.
  var mid = Math.floor((aHigh - aLow) / 2) + aLow;
  var cmp = aCompare(aNeedle, aHaystack[mid], true);
  if (cmp === 0) {
    // Found the element we are looking for.
    return mid;
  }
  else if (cmp > 0) {
    // Our needle is greater than aHaystack[mid].
    if (aHigh - mid > 1) {
      // The element is in the upper half.
      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
    }

    // The exact needle element was not found in this haystack. Determine if
    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return aHigh < aHaystack.length ? aHigh : -1;
    } else {
      return mid;
    }
  }
  else {
    // Our needle is less than aHaystack[mid].
    if (mid - aLow > 1) {
      // The element is in the lower half.
      return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
    }

    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return mid;
    } else {
      return aLow < 0 ? -1 : aLow;
    }
  }
}

/**
 * This is an implementation of binary search which will always try and return
 * the index of the closest element if there is no exact hit. This is because
 * mappings between original and generated line/col pairs are single points,
 * and there is an implicit region between each of them, so a miss just means
 * that you aren't on the very start of a region.
 *
 * @param aNeedle The element you are looking for.
 * @param aHaystack The array that is being searched.
 * @param aCompare A function which takes the needle and an element in the
 *     array and returns -1, 0, or 1 depending on whether the needle is less
 *     than, equal to, or greater than the element, respectively.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
 */
exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
  if (aHaystack.length === 0) {
    return -1;
  }

  var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
                              aCompare, aBias || exports.GREATEST_LOWER_BOUND);
  if (index < 0) {
    return -1;
  }

  // We have found either the exact element, or the next-closest element than
  // the one we are searching for. However, there may be more than one such
  // element. Make sure we always return the smallest of these.
  while (index - 1 >= 0) {
    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
      break;
    }
    --index;
  }

  return index;
};

},{}],293:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

// It turns out that some (most?) JavaScript engines don't self-host
// `Array.prototype.sort`. This makes sense because C++ will likely remain
// faster than JS when doing raw CPU-intensive sorting. However, when using a
// custom comparator function, calling back and forth between the VM's C++ and
// JIT'd JS is rather slow *and* loses JIT type information, resulting in
// worse generated code for the comparator function than would be optimal. In
// fact, when sorting with a comparator, these costs outweigh the benefits of
// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
// a ~3500ms mean speed-up in `bench/bench.html`.

/**
 * Swap the elements indexed by `x` and `y` in the array `ary`.
 *
 * @param {Array} ary
 *        The array.
 * @param {Number} x
 *        The index of the first item.
 * @param {Number} y
 *        The index of the second item.
 */
function swap(ary, x, y) {
  var temp = ary[x];
  ary[x] = ary[y];
  ary[y] = temp;
}

/**
 * Returns a random integer within the range `low .. high` inclusive.
 *
 * @param {Number} low
 *        The lower bound on the range.
 * @param {Number} high
 *        The upper bound on the range.
 */
function randomIntInRange(low, high) {
  return Math.round(low + (Math.random() * (high - low)));
}

/**
 * The Quick Sort algorithm.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 * @param {Number} p
 *        Start index of the array
 * @param {Number} r
 *        End index of the array
 */
function doQuickSort(ary, comparator, p, r) {
  // If our lower bound is less than our upper bound, we (1) partition the
  // array into two pieces and (2) recurse on each half. If it is not, this is
  // the empty array and our base case.

  if (p < r) {
    // (1) Partitioning.
    //
    // The partitioning chooses a pivot between `p` and `r` and moves all
    // elements that are less than or equal to the pivot to the before it, and
    // all the elements that are greater than it after it. The effect is that
    // once partition is done, the pivot is in the exact place it will be when
    // the array is put in sorted order, and it will not need to be moved
    // again. This runs in O(n) time.

    // Always choose a random pivot so that an input array which is reverse
    // sorted does not cause O(n^2) running time.
    var pivotIndex = randomIntInRange(p, r);
    var i = p - 1;

    swap(ary, pivotIndex, r);
    var pivot = ary[r];

    // Immediately after `j` is incremented in this loop, the following hold
    // true:
    //
    //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
    //
    //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
    for (var j = p; j < r; j++) {
      if (comparator(ary[j], pivot) <= 0) {
        i += 1;
        swap(ary, i, j);
      }
    }

    swap(ary, i + 1, j);
    var q = i + 1;

    // (2) Recurse on each half.

    doQuickSort(ary, comparator, p, q - 1);
    doQuickSort(ary, comparator, q + 1, r);
  }
}

/**
 * Sort the given array in-place with the given comparator function.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 */
exports.quickSort = function (ary, comparator) {
  doQuickSort(ary, comparator, 0, ary.length - 1);
};

},{}],294:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util = require('./util');
var binarySearch = require('./binary-search');
var ArraySet = require('./array-set').ArraySet;
var base64VLQ = require('./base64-vlq');
var quickSort = require('./quick-sort').quickSort;

function SourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  return sourceMap.sections != null
    ? new IndexedSourceMapConsumer(sourceMap)
    : new BasicSourceMapConsumer(sourceMap);
}

SourceMapConsumer.fromSourceMap = function(aSourceMap) {
  return BasicSourceMapConsumer.fromSourceMap(aSourceMap);
}

/**
 * The version of the source mapping spec that we are consuming.
 */
SourceMapConsumer.prototype._version = 3;

// `__generatedMappings` and `__originalMappings` are arrays that hold the
// parsed mapping coordinates from the source map's "mappings" attribute. They
// are lazily instantiated, accessed via the `_generatedMappings` and
// `_originalMappings` getters respectively, and we only parse the mappings
// and create these arrays once queried for a source location. We jump through
// these hoops because there can be many thousands of mappings, and parsing
// them is expensive, so we only want to do it if we must.
//
// Each object in the arrays is of the form:
//
//     {
//       generatedLine: The line number in the generated code,
//       generatedColumn: The column number in the generated code,
//       source: The path to the original source file that generated this
//               chunk of code,
//       originalLine: The line number in the original source that
//                     corresponds to this chunk of generated code,
//       originalColumn: The column number in the original source that
//                       corresponds to this chunk of generated code,
//       name: The name of the original symbol which generated this chunk of
//             code.
//     }
//
// All properties except for `generatedLine` and `generatedColumn` can be
// `null`.
//
// `_generatedMappings` is ordered by the generated positions.
//
// `_originalMappings` is ordered by the original positions.

SourceMapConsumer.prototype.__generatedMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
  get: function () {
    if (!this.__generatedMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__generatedMappings;
  }
});

SourceMapConsumer.prototype.__originalMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
  get: function () {
    if (!this.__originalMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__originalMappings;
  }
});

SourceMapConsumer.prototype._charIsMappingSeparator =
  function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
    var c = aStr.charAt(index);
    return c === ";" || c === ",";
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
SourceMapConsumer.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    throw new Error("Subclasses must implement _parseMappings");
  };

SourceMapConsumer.GENERATED_ORDER = 1;
SourceMapConsumer.ORIGINAL_ORDER = 2;

SourceMapConsumer.GREATEST_LOWER_BOUND = 1;
SourceMapConsumer.LEAST_UPPER_BOUND = 2;

/**
 * Iterate over each mapping between an original source/line/column and a
 * generated line/column in this source map.
 *
 * @param Function aCallback
 *        The function that is called with each mapping.
 * @param Object aContext
 *        Optional. If specified, this object will be the value of `this` every
 *        time that `aCallback` is called.
 * @param aOrder
 *        Either `SourceMapConsumer.GENERATED_ORDER` or
 *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
 *        iterate over the mappings sorted by the generated file's line/column
 *        order or the original's source/line/column order, respectively. Defaults to
 *        `SourceMapConsumer.GENERATED_ORDER`.
 */
SourceMapConsumer.prototype.eachMapping =
  function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
    var context = aContext || null;
    var order = aOrder || SourceMapConsumer.GENERATED_ORDER;

    var mappings;
    switch (order) {
    case SourceMapConsumer.GENERATED_ORDER:
      mappings = this._generatedMappings;
      break;
    case SourceMapConsumer.ORIGINAL_ORDER:
      mappings = this._originalMappings;
      break;
    default:
      throw new Error("Unknown order of iteration.");
    }

    var sourceRoot = this.sourceRoot;
    mappings.map(function (mapping) {
      var source = mapping.source === null ? null : this._sources.at(mapping.source);
      if (source != null && sourceRoot != null) {
        source = util.join(sourceRoot, source);
      }
      return {
        source: source,
        generatedLine: mapping.generatedLine,
        generatedColumn: mapping.generatedColumn,
        originalLine: mapping.originalLine,
        originalColumn: mapping.originalColumn,
        name: mapping.name === null ? null : this._names.at(mapping.name)
      };
    }, this).forEach(aCallback, context);
  };

/**
 * Returns all generated line and column information for the original source,
 * line, and column provided. If no column is provided, returns all mappings
 * corresponding to a either the line we are searching for or the next
 * closest line that has any mappings. Otherwise, returns all mappings
 * corresponding to the given line and either the column we are searching for
 * or the next closest column that has any offsets.
 *
 * The only argument is an object with the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: Optional. the column number in the original source.
 *
 * and an array of objects is returned, each with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
SourceMapConsumer.prototype.allGeneratedPositionsFor =
  function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
    var line = util.getArg(aArgs, 'line');

    // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
    // returns the index of the closest mapping less than the needle. By
    // setting needle.originalColumn to 0, we thus find the last mapping for
    // the given line, provided such a mapping exists.
    var needle = {
      source: util.getArg(aArgs, 'source'),
      originalLine: line,
      originalColumn: util.getArg(aArgs, 'column', 0)
    };

    if (this.sourceRoot != null) {
      needle.source = util.relative(this.sourceRoot, needle.source);
    }
    if (!this._sources.has(needle.source)) {
      return [];
    }
    needle.source = this._sources.indexOf(needle.source);

    var mappings = [];

    var index = this._findMapping(needle,
                                  this._originalMappings,
                                  "originalLine",
                                  "originalColumn",
                                  util.compareByOriginalPositions,
                                  binarySearch.LEAST_UPPER_BOUND);
    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (aArgs.column === undefined) {
        var originalLine = mapping.originalLine;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we found. Since
        // mappings are sorted, this is guaranteed to find all mappings for
        // the line we found.
        while (mapping && mapping.originalLine === originalLine) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      } else {
        var originalColumn = mapping.originalColumn;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we were searching for.
        // Since mappings are sorted, this is guaranteed to find all mappings for
        // the line we are searching for.
        while (mapping &&
               mapping.originalLine === line &&
               mapping.originalColumn == originalColumn) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      }
    }

    return mappings;
  };

exports.SourceMapConsumer = SourceMapConsumer;

/**
 * A BasicSourceMapConsumer instance represents a parsed source map which we can
 * query for information about the original file positions by giving it a file
 * position in the generated source.
 *
 * The only parameter is the raw source map (either as a JSON string, or
 * already parsed to an object). According to the spec, source maps have the
 * following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - sources: An array of URLs to the original source files.
 *   - names: An array of identifiers which can be referrenced by individual mappings.
 *   - sourceRoot: Optional. The URL root from which all sources are relative.
 *   - sourcesContent: Optional. An array of contents of the original source files.
 *   - mappings: A string of base64 VLQs which contain the actual mappings.
 *   - file: Optional. The generated file this source map is associated with.
 *
 * Here is an example source map, taken from the source map spec[0]:
 *
 *     {
 *       version : 3,
 *       file: "out.js",
 *       sourceRoot : "",
 *       sources: ["foo.js", "bar.js"],
 *       names: ["src", "maps", "are", "fun"],
 *       mappings: "AA,AB;;ABCDE;"
 *     }
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
 */
function BasicSourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  var version = util.getArg(sourceMap, 'version');
  var sources = util.getArg(sourceMap, 'sources');
  // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
  // requires the array) to play nice here.
  var names = util.getArg(sourceMap, 'names', []);
  var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
  var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
  var mappings = util.getArg(sourceMap, 'mappings');
  var file = util.getArg(sourceMap, 'file', null);

  // Once again, Sass deviates from the spec and supplies the version as a
  // string rather than a number, so we use loose equality checking here.
  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  sources = sources
    .map(String)
    // Some source maps produce relative source paths like "./foo.js" instead of
    // "foo.js".  Normalize these first so that future comparisons will succeed.
    // See bugzil.la/1090768.
    .map(util.normalize)
    // Always ensure that absolute sources are internally stored relative to
    // the source root, if the source root is absolute. Not doing this would
    // be particularly problematic when the source root is a prefix of the
    // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
    .map(function (source) {
      return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source)
        ? util.relative(sourceRoot, source)
        : source;
    });

  // Pass `true` below to allow duplicate names and sources. While source maps
  // are intended to be compressed and deduplicated, the TypeScript compiler
  // sometimes generates source maps with duplicates in them. See Github issue
  // #72 and bugzil.la/889492.
  this._names = ArraySet.fromArray(names.map(String), true);
  this._sources = ArraySet.fromArray(sources, true);

  this.sourceRoot = sourceRoot;
  this.sourcesContent = sourcesContent;
  this._mappings = mappings;
  this.file = file;
}

BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;

/**
 * Create a BasicSourceMapConsumer from a SourceMapGenerator.
 *
 * @param SourceMapGenerator aSourceMap
 *        The source map that will be consumed.
 * @returns BasicSourceMapConsumer
 */
BasicSourceMapConsumer.fromSourceMap =
  function SourceMapConsumer_fromSourceMap(aSourceMap) {
    var smc = Object.create(BasicSourceMapConsumer.prototype);

    var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
    var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
    smc.sourceRoot = aSourceMap._sourceRoot;
    smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(),
                                                            smc.sourceRoot);
    smc.file = aSourceMap._file;

    // Because we are modifying the entries (by converting string sources and
    // names to indices into the sources and names ArraySets), we have to make
    // a copy of the entry or else bad things happen. Shared mutable state
    // strikes again! See github issue #191.

    var generatedMappings = aSourceMap._mappings.toArray().slice();
    var destGeneratedMappings = smc.__generatedMappings = [];
    var destOriginalMappings = smc.__originalMappings = [];

    for (var i = 0, length = generatedMappings.length; i < length; i++) {
      var srcMapping = generatedMappings[i];
      var destMapping = new Mapping;
      destMapping.generatedLine = srcMapping.generatedLine;
      destMapping.generatedColumn = srcMapping.generatedColumn;

      if (srcMapping.source) {
        destMapping.source = sources.indexOf(srcMapping.source);
        destMapping.originalLine = srcMapping.originalLine;
        destMapping.originalColumn = srcMapping.originalColumn;

        if (srcMapping.name) {
          destMapping.name = names.indexOf(srcMapping.name);
        }

        destOriginalMappings.push(destMapping);
      }

      destGeneratedMappings.push(destMapping);
    }

    quickSort(smc.__originalMappings, util.compareByOriginalPositions);

    return smc;
  };

/**
 * The version of the source mapping spec that we are consuming.
 */
BasicSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
  get: function () {
    return this._sources.toArray().map(function (s) {
      return this.sourceRoot != null ? util.join(this.sourceRoot, s) : s;
    }, this);
  }
});

/**
 * Provide the JIT with a nice shape / hidden class.
 */
function Mapping() {
  this.generatedLine = 0;
  this.generatedColumn = 0;
  this.source = null;
  this.originalLine = null;
  this.originalColumn = null;
  this.name = null;
}

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
BasicSourceMapConsumer.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    var generatedLine = 1;
    var previousGeneratedColumn = 0;
    var previousOriginalLine = 0;
    var previousOriginalColumn = 0;
    var previousSource = 0;
    var previousName = 0;
    var length = aStr.length;
    var index = 0;
    var cachedSegments = {};
    var temp = {};
    var originalMappings = [];
    var generatedMappings = [];
    var mapping, str, segment, end, value;

    while (index < length) {
      if (aStr.charAt(index) === ';') {
        generatedLine++;
        index++;
        previousGeneratedColumn = 0;
      }
      else if (aStr.charAt(index) === ',') {
        index++;
      }
      else {
        mapping = new Mapping();
        mapping.generatedLine = generatedLine;

        // Because each offset is encoded relative to the previous one,
        // many segments often have the same encoding. We can exploit this
        // fact by caching the parsed variable length fields of each segment,
        // allowing us to avoid a second parse if we encounter the same
        // segment again.
        for (end = index; end < length; end++) {
          if (this._charIsMappingSeparator(aStr, end)) {
            break;
          }
        }
        str = aStr.slice(index, end);

        segment = cachedSegments[str];
        if (segment) {
          index += str.length;
        } else {
          segment = [];
          while (index < end) {
            base64VLQ.decode(aStr, index, temp);
            value = temp.value;
            index = temp.rest;
            segment.push(value);
          }

          if (segment.length === 2) {
            throw new Error('Found a source, but no line and column');
          }

          if (segment.length === 3) {
            throw new Error('Found a source and line, but no column');
          }

          cachedSegments[str] = segment;
        }

        // Generated column.
        mapping.generatedColumn = previousGeneratedColumn + segment[0];
        previousGeneratedColumn = mapping.generatedColumn;

        if (segment.length > 1) {
          // Original source.
          mapping.source = previousSource + segment[1];
          previousSource += segment[1];

          // Original line.
          mapping.originalLine = previousOriginalLine + segment[2];
          previousOriginalLine = mapping.originalLine;
          // Lines are stored 0-based
          mapping.originalLine += 1;

          // Original column.
          mapping.originalColumn = previousOriginalColumn + segment[3];
          previousOriginalColumn = mapping.originalColumn;

          if (segment.length > 4) {
            // Original name.
            mapping.name = previousName + segment[4];
            previousName += segment[4];
          }
        }

        generatedMappings.push(mapping);
        if (typeof mapping.originalLine === 'number') {
          originalMappings.push(mapping);
        }
      }
    }

    quickSort(generatedMappings, util.compareByGeneratedPositionsDeflated);
    this.__generatedMappings = generatedMappings;

    quickSort(originalMappings, util.compareByOriginalPositions);
    this.__originalMappings = originalMappings;
  };

/**
 * Find the mapping that best matches the hypothetical "needle" mapping that
 * we are searching for in the given "haystack" of mappings.
 */
BasicSourceMapConsumer.prototype._findMapping =
  function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
                                         aColumnName, aComparator, aBias) {
    // To return the position we are searching for, we must first find the
    // mapping for the given position and then return the opposite position it
    // points to. Because the mappings are sorted, we can use binary search to
    // find the best mapping.

    if (aNeedle[aLineName] <= 0) {
      throw new TypeError('Line must be greater than or equal to 1, got '
                          + aNeedle[aLineName]);
    }
    if (aNeedle[aColumnName] < 0) {
      throw new TypeError('Column must be greater than or equal to 0, got '
                          + aNeedle[aColumnName]);
    }

    return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
  };

/**
 * Compute the last column for each generated mapping. The last column is
 * inclusive.
 */
BasicSourceMapConsumer.prototype.computeColumnSpans =
  function SourceMapConsumer_computeColumnSpans() {
    for (var index = 0; index < this._generatedMappings.length; ++index) {
      var mapping = this._generatedMappings[index];

      // Mappings do not contain a field for the last generated columnt. We
      // can come up with an optimistic estimate, however, by assuming that
      // mappings are contiguous (i.e. given two consecutive mappings, the
      // first mapping ends where the second one starts).
      if (index + 1 < this._generatedMappings.length) {
        var nextMapping = this._generatedMappings[index + 1];

        if (mapping.generatedLine === nextMapping.generatedLine) {
          mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
          continue;
        }
      }

      // The last mapping for each line spans the entire line.
      mapping.lastGeneratedColumn = Infinity;
    }
  };

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.
 *   - column: The column number in the generated source.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.
 *   - column: The column number in the original source, or null.
 *   - name: The original identifier, or null.
 */
BasicSourceMapConsumer.prototype.originalPositionFor =
  function SourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._generatedMappings,
      "generatedLine",
      "generatedColumn",
      util.compareByGeneratedPositionsDeflated,
      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._generatedMappings[index];

      if (mapping.generatedLine === needle.generatedLine) {
        var source = util.getArg(mapping, 'source', null);
        if (source !== null) {
          source = this._sources.at(source);
          if (this.sourceRoot != null) {
            source = util.join(this.sourceRoot, source);
          }
        }
        var name = util.getArg(mapping, 'name', null);
        if (name !== null) {
          name = this._names.at(name);
        }
        return {
          source: source,
          line: util.getArg(mapping, 'originalLine', null),
          column: util.getArg(mapping, 'originalColumn', null),
          name: name
        };
      }
    }

    return {
      source: null,
      line: null,
      column: null,
      name: null
    };
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
BasicSourceMapConsumer.prototype.hasContentsOfAllSources =
  function BasicSourceMapConsumer_hasContentsOfAllSources() {
    if (!this.sourcesContent) {
      return false;
    }
    return this.sourcesContent.length >= this._sources.size() &&
      !this.sourcesContent.some(function (sc) { return sc == null; });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
BasicSourceMapConsumer.prototype.sourceContentFor =
  function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    if (!this.sourcesContent) {
      return null;
    }

    if (this.sourceRoot != null) {
      aSource = util.relative(this.sourceRoot, aSource);
    }

    if (this._sources.has(aSource)) {
      return this.sourcesContent[this._sources.indexOf(aSource)];
    }

    var url;
    if (this.sourceRoot != null
        && (url = util.urlParse(this.sourceRoot))) {
      // XXX: file:// URIs and absolute paths lead to unexpected behavior for
      // many users. We can help them out when they expect file:// URIs to
      // behave like it would if they were running a local HTTP server. See
      // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
      var fileUriAbsPath = aSource.replace(/^file:\/\//, "");
      if (url.scheme == "file"
          && this._sources.has(fileUriAbsPath)) {
        return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
      }

      if ((!url.path || url.path == "/")
          && this._sources.has("/" + aSource)) {
        return this.sourcesContent[this._sources.indexOf("/" + aSource)];
      }
    }

    // This function is used recursively from
    // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
    // don't want to throw if we can't find the source - we just want to
    // return null, so we provide a flag to exit gracefully.
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: The column number in the original source.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
BasicSourceMapConsumer.prototype.generatedPositionFor =
  function SourceMapConsumer_generatedPositionFor(aArgs) {
    var source = util.getArg(aArgs, 'source');
    if (this.sourceRoot != null) {
      source = util.relative(this.sourceRoot, source);
    }
    if (!this._sources.has(source)) {
      return {
        line: null,
        column: null,
        lastColumn: null
      };
    }
    source = this._sources.indexOf(source);

    var needle = {
      source: source,
      originalLine: util.getArg(aArgs, 'line'),
      originalColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._originalMappings,
      "originalLine",
      "originalColumn",
      util.compareByOriginalPositions,
      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (mapping.source === needle.source) {
        return {
          line: util.getArg(mapping, 'generatedLine', null),
          column: util.getArg(mapping, 'generatedColumn', null),
          lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
        };
      }
    }

    return {
      line: null,
      column: null,
      lastColumn: null
    };
  };

exports.BasicSourceMapConsumer = BasicSourceMapConsumer;

/**
 * An IndexedSourceMapConsumer instance represents a parsed source map which
 * we can query for information. It differs from BasicSourceMapConsumer in
 * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
 * input.
 *
 * The only parameter is a raw source map (either as a JSON string, or already
 * parsed to an object). According to the spec for indexed source maps, they
 * have the following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - file: Optional. The generated file this source map is associated with.
 *   - sections: A list of section definitions.
 *
 * Each value under the "sections" field has two fields:
 *   - offset: The offset into the original specified at which this section
 *       begins to apply, defined as an object with a "line" and "column"
 *       field.
 *   - map: A source map definition. This source map could also be indexed,
 *       but doesn't have to be.
 *
 * Instead of the "map" field, it's also possible to have a "url" field
 * specifying a URL to retrieve a source map from, but that's currently
 * unsupported.
 *
 * Here's an example source map, taken from the source map spec[0], but
 * modified to omit a section which uses the "url" field.
 *
 *  {
 *    version : 3,
 *    file: "app.js",
 *    sections: [{
 *      offset: {line:100, column:10},
 *      map: {
 *        version : 3,
 *        file: "section.js",
 *        sources: ["foo.js", "bar.js"],
 *        names: ["src", "maps", "are", "fun"],
 *        mappings: "AAAA,E;;ABCDE;"
 *      }
 *    }],
 *  }
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
 */
function IndexedSourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  var version = util.getArg(sourceMap, 'version');
  var sections = util.getArg(sourceMap, 'sections');

  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  this._sources = new ArraySet();
  this._names = new ArraySet();

  var lastOffset = {
    line: -1,
    column: 0
  };
  this._sections = sections.map(function (s) {
    if (s.url) {
      // The url field will require support for asynchronicity.
      // See https://github.com/mozilla/source-map/issues/16
      throw new Error('Support for url field in sections not implemented.');
    }
    var offset = util.getArg(s, 'offset');
    var offsetLine = util.getArg(offset, 'line');
    var offsetColumn = util.getArg(offset, 'column');

    if (offsetLine < lastOffset.line ||
        (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) {
      throw new Error('Section offsets must be ordered and non-overlapping.');
    }
    lastOffset = offset;

    return {
      generatedOffset: {
        // The offset fields are 0-based, but we use 1-based indices when
        // encoding/decoding from VLQ.
        generatedLine: offsetLine + 1,
        generatedColumn: offsetColumn + 1
      },
      consumer: new SourceMapConsumer(util.getArg(s, 'map'))
    }
  });
}

IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;

/**
 * The version of the source mapping spec that we are consuming.
 */
IndexedSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
  get: function () {
    var sources = [];
    for (var i = 0; i < this._sections.length; i++) {
      for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
        sources.push(this._sections[i].consumer.sources[j]);
      }
    }
    return sources;
  }
});

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.
 *   - column: The column number in the generated source.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.
 *   - column: The column number in the original source, or null.
 *   - name: The original identifier, or null.
 */
IndexedSourceMapConsumer.prototype.originalPositionFor =
  function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    // Find the section containing the generated position we're trying to map
    // to an original position.
    var sectionIndex = binarySearch.search(needle, this._sections,
      function(needle, section) {
        var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
        if (cmp) {
          return cmp;
        }

        return (needle.generatedColumn -
                section.generatedOffset.generatedColumn);
      });
    var section = this._sections[sectionIndex];

    if (!section) {
      return {
        source: null,
        line: null,
        column: null,
        name: null
      };
    }

    return section.consumer.originalPositionFor({
      line: needle.generatedLine -
        (section.generatedOffset.generatedLine - 1),
      column: needle.generatedColumn -
        (section.generatedOffset.generatedLine === needle.generatedLine
         ? section.generatedOffset.generatedColumn - 1
         : 0),
      bias: aArgs.bias
    });
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
IndexedSourceMapConsumer.prototype.hasContentsOfAllSources =
  function IndexedSourceMapConsumer_hasContentsOfAllSources() {
    return this._sections.every(function (s) {
      return s.consumer.hasContentsOfAllSources();
    });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
IndexedSourceMapConsumer.prototype.sourceContentFor =
  function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      var content = section.consumer.sourceContentFor(aSource, true);
      if (content) {
        return content;
      }
    }
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: The column number in the original source.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
IndexedSourceMapConsumer.prototype.generatedPositionFor =
  function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      // Only consider this section if the requested source is in the list of
      // sources of the consumer.
      if (section.consumer.sources.indexOf(util.getArg(aArgs, 'source')) === -1) {
        continue;
      }
      var generatedPosition = section.consumer.generatedPositionFor(aArgs);
      if (generatedPosition) {
        var ret = {
          line: generatedPosition.line +
            (section.generatedOffset.generatedLine - 1),
          column: generatedPosition.column +
            (section.generatedOffset.generatedLine === generatedPosition.line
             ? section.generatedOffset.generatedColumn - 1
             : 0)
        };
        return ret;
      }
    }

    return {
      line: null,
      column: null
    };
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
IndexedSourceMapConsumer.prototype._parseMappings =
  function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    this.__generatedMappings = [];
    this.__originalMappings = [];
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];
      var sectionMappings = section.consumer._generatedMappings;
      for (var j = 0; j < sectionMappings.length; j++) {
        var mapping = sectionMappings[j];

        var source = section.consumer._sources.at(mapping.source);
        if (section.consumer.sourceRoot !== null) {
          source = util.join(section.consumer.sourceRoot, source);
        }
        this._sources.add(source);
        source = this._sources.indexOf(source);

        var name = section.consumer._names.at(mapping.name);
        this._names.add(name);
        name = this._names.indexOf(name);

        // The mappings coming from the consumer for the section have
        // generated positions relative to the start of the section, so we
        // need to offset them to be relative to the start of the concatenated
        // generated file.
        var adjustedMapping = {
          source: source,
          generatedLine: mapping.generatedLine +
            (section.generatedOffset.generatedLine - 1),
          generatedColumn: mapping.generatedColumn +
            (section.generatedOffset.generatedLine === mapping.generatedLine
            ? section.generatedOffset.generatedColumn - 1
            : 0),
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name: name
        };

        this.__generatedMappings.push(adjustedMapping);
        if (typeof adjustedMapping.originalLine === 'number') {
          this.__originalMappings.push(adjustedMapping);
        }
      }
    }

    quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated);
    quickSort(this.__originalMappings, util.compareByOriginalPositions);
  };

exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;

},{"./array-set":289,"./base64-vlq":290,"./binary-search":292,"./quick-sort":293,"./util":295}],295:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

/**
 * This is a helper function for getting values from parameter/options
 * objects.
 *
 * @param args The object we are extracting values from
 * @param name The name of the property we are getting.
 * @param defaultValue An optional value to return if the property is missing
 * from the object. If this is not specified and the property is missing, an
 * error will be thrown.
 */
function getArg(aArgs, aName, aDefaultValue) {
  if (aName in aArgs) {
    return aArgs[aName];
  } else if (arguments.length === 3) {
    return aDefaultValue;
  } else {
    throw new Error('"' + aName + '" is a required argument.');
  }
}
exports.getArg = getArg;

var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.]*)(?::(\d+))?(\S*)$/;
var dataUrlRegexp = /^data:.+\,.+$/;

function urlParse(aUrl) {
  var match = aUrl.match(urlRegexp);
  if (!match) {
    return null;
  }
  return {
    scheme: match[1],
    auth: match[2],
    host: match[3],
    port: match[4],
    path: match[5]
  };
}
exports.urlParse = urlParse;

function urlGenerate(aParsedUrl) {
  var url = '';
  if (aParsedUrl.scheme) {
    url += aParsedUrl.scheme + ':';
  }
  url += '//';
  if (aParsedUrl.auth) {
    url += aParsedUrl.auth + '@';
  }
  if (aParsedUrl.host) {
    url += aParsedUrl.host;
  }
  if (aParsedUrl.port) {
    url += ":" + aParsedUrl.port
  }
  if (aParsedUrl.path) {
    url += aParsedUrl.path;
  }
  return url;
}
exports.urlGenerate = urlGenerate;

/**
 * Normalizes a path, or the path portion of a URL:
 *
 * - Replaces consecutive slashes with one slash.
 * - Removes unnecessary '.' parts.
 * - Removes unnecessary '<dir>/..' parts.
 *
 * Based on code in the Node.js 'path' core module.
 *
 * @param aPath The path or url to normalize.
 */
function normalize(aPath) {
  var path = aPath;
  var url = urlParse(aPath);
  if (url) {
    if (!url.path) {
      return aPath;
    }
    path = url.path;
  }
  var isAbsolute = exports.isAbsolute(path);

  var parts = path.split(/\/+/);
  for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
    part = parts[i];
    if (part === '.') {
      parts.splice(i, 1);
    } else if (part === '..') {
      up++;
    } else if (up > 0) {
      if (part === '') {
        // The first part is blank if the path is absolute. Trying to go
        // above the root is a no-op. Therefore we can remove all '..' parts
        // directly after the root.
        parts.splice(i + 1, up);
        up = 0;
      } else {
        parts.splice(i, 2);
        up--;
      }
    }
  }
  path = parts.join('/');

  if (path === '') {
    path = isAbsolute ? '/' : '.';
  }

  if (url) {
    url.path = path;
    return urlGenerate(url);
  }
  return path;
}
exports.normalize = normalize;

/**
 * Joins two paths/URLs.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be joined with the root.
 *
 * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
 *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
 *   first.
 * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
 *   is updated with the result and aRoot is returned. Otherwise the result
 *   is returned.
 *   - If aPath is absolute, the result is aPath.
 *   - Otherwise the two paths are joined with a slash.
 * - Joining for example 'http://' and 'www.example.com' is also supported.
 */
function join(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }
  if (aPath === "") {
    aPath = ".";
  }
  var aPathUrl = urlParse(aPath);
  var aRootUrl = urlParse(aRoot);
  if (aRootUrl) {
    aRoot = aRootUrl.path || '/';
  }

  // `join(foo, '//www.example.org')`
  if (aPathUrl && !aPathUrl.scheme) {
    if (aRootUrl) {
      aPathUrl.scheme = aRootUrl.scheme;
    }
    return urlGenerate(aPathUrl);
  }

  if (aPathUrl || aPath.match(dataUrlRegexp)) {
    return aPath;
  }

  // `join('http://', 'www.example.com')`
  if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
    aRootUrl.host = aPath;
    return urlGenerate(aRootUrl);
  }

  var joined = aPath.charAt(0) === '/'
    ? aPath
    : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);

  if (aRootUrl) {
    aRootUrl.path = joined;
    return urlGenerate(aRootUrl);
  }
  return joined;
}
exports.join = join;

exports.isAbsolute = function (aPath) {
  return aPath.charAt(0) === '/' || !!aPath.match(urlRegexp);
};

/**
 * Make a path relative to a URL or another path.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be made relative to aRoot.
 */
function relative(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }

  aRoot = aRoot.replace(/\/$/, '');

  // It is possible for the path to be above the root. In this case, simply
  // checking whether the root is a prefix of the path won't work. Instead, we
  // need to remove components from the root one by one, until either we find
  // a prefix that fits, or we run out of components to remove.
  var level = 0;
  while (aPath.indexOf(aRoot + '/') !== 0) {
    var index = aRoot.lastIndexOf("/");
    if (index < 0) {
      return aPath;
    }

    // If the only part of the root that is left is the scheme (i.e. http://,
    // file:///, etc.), one or more slashes (/), or simply nothing at all, we
    // have exhausted all components, so the path is not relative to the root.
    aRoot = aRoot.slice(0, index);
    if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
      return aPath;
    }

    ++level;
  }

  // Make sure we add a "../" for each component we removed from the root.
  return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
}
exports.relative = relative;

var supportsNullProto = (function () {
  var obj = Object.create(null);
  return !('__proto__' in obj);
}());

function identity (s) {
  return s;
}

/**
 * Because behavior goes wacky when you set `__proto__` on objects, we
 * have to prefix all the strings in our set with an arbitrary character.
 *
 * See https://github.com/mozilla/source-map/pull/31 and
 * https://github.com/mozilla/source-map/issues/30
 *
 * @param String aStr
 */
function toSetString(aStr) {
  if (isProtoString(aStr)) {
    return '$' + aStr;
  }

  return aStr;
}
exports.toSetString = supportsNullProto ? identity : toSetString;

function fromSetString(aStr) {
  if (isProtoString(aStr)) {
    return aStr.slice(1);
  }

  return aStr;
}
exports.fromSetString = supportsNullProto ? identity : fromSetString;

function isProtoString(s) {
  if (!s) {
    return false;
  }

  var length = s.length;

  if (length < 9 /* "__proto__".length */) {
    return false;
  }

  if (s.charCodeAt(length - 1) !== 95  /* '_' */ ||
      s.charCodeAt(length - 2) !== 95  /* '_' */ ||
      s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 4) !== 116 /* 't' */ ||
      s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
      s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
      s.charCodeAt(length - 8) !== 95  /* '_' */ ||
      s.charCodeAt(length - 9) !== 95  /* '_' */) {
    return false;
  }

  for (var i = length - 10; i >= 0; i--) {
    if (s.charCodeAt(i) !== 36 /* '$' */) {
      return false;
    }
  }

  return true;
}

/**
 * Comparator between two mappings where the original positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same original source/line/column, but different generated
 * line and column the same. Useful when searching for a mapping with a
 * stubbed out mapping.
 */
function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
  var cmp = mappingA.source - mappingB.source;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0 || onlyCompareOriginal) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  return mappingA.name - mappingB.name;
}
exports.compareByOriginalPositions = compareByOriginalPositions;

/**
 * Comparator between two mappings with deflated source and name indices where
 * the generated positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same generated line and column, but different
 * source/name/original line and column the same. Useful when searching for a
 * mapping with a stubbed out mapping.
 */
function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0 || onlyCompareGenerated) {
    return cmp;
  }

  cmp = mappingA.source - mappingB.source;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return mappingA.name - mappingB.name;
}
exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;

function strcmp(aStr1, aStr2) {
  if (aStr1 === aStr2) {
    return 0;
  }

  if (aStr1 > aStr2) {
    return 1;
  }

  return -1;
}

/**
 * Comparator between two mappings with inflated source and name strings where
 * the generated positions are compared.
 */
function compareByGeneratedPositionsInflated(mappingA, mappingB) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return strcmp(mappingA.name, mappingB.name);
}
exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;

},{}],296:[function(require,module,exports){
(function(root, factory) {
    'use strict';
    // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.

    /* istanbul ignore next */
    if (typeof define === 'function' && define.amd) {
        define('stacktrace-gps', ['source-map', 'stackframe'], factory);
    } else if (typeof exports === 'object') {
        module.exports = factory(require('source-map/lib/source-map-consumer'), require('stackframe'));
    } else {
        root.StackTraceGPS = factory(root.SourceMap || root.sourceMap, root.StackFrame);
    }
}(this, function(SourceMap, StackFrame) {
    'use strict';

    /**
     * Make a X-Domain request to url and callback.
     *
     * @param {String} url
     * @returns {Promise} with response text if fulfilled
     */
    function _xdr(url) {
        return new Promise(function(resolve, reject) {
            var req = new XMLHttpRequest();
            req.open('get', url);
            req.onerror = reject;
            req.onreadystatechange = function onreadystatechange() {
                if (req.readyState === 4) {
                    if ((req.status >= 200 && req.status < 300) ||
                        (url.substr(0, 7) === 'file://' && req.responseText)) {
                        resolve(req.responseText);
                    } else {
                        reject(new Error('HTTP status: ' + req.status + ' retrieving ' + url));
                    }
                }
            };
            req.send();
        });

    }

    /**
     * Convert a Base64-encoded string into its original representation.
     * Used for inline sourcemaps.
     *
     * @param {String} b64str Base-64 encoded string
     * @returns {String} original representation of the base64-encoded string.
     */
    function _atob(b64str) {
        if (typeof window !== 'undefined' && window.atob) {
            return window.atob(b64str);
        } else {
            throw new Error('You must supply a polyfill for window.atob in this environment');
        }
    }

    function _parseJson(string) {
        if (typeof JSON !== 'undefined' && JSON.parse) {
            return JSON.parse(string);
        } else {
            throw new Error('You must supply a polyfill for JSON.parse in this environment');
        }
    }

    function _findFunctionName(source, lineNumber/*, columnNumber*/) {
        var syntaxes = [
            // {name} = function ({args}) TODO args capture
            /['"]?([$_A-Za-z][$_A-Za-z0-9]*)['"]?\s*[:=]\s*function\b/,
            // function {name}({args}) m[1]=name m[2]=args
            /function\s+([^('"`]*?)\s*\(([^)]*)\)/,
            // {name} = eval()
            /['"]?([$_A-Za-z][$_A-Za-z0-9]*)['"]?\s*[:=]\s*(?:eval|new Function)\b/,
            // fn_name() {
            /\b(?!(?:if|for|switch|while|with|catch)\b)(?:(?:static)\s+)?(\S+)\s*\(.*?\)\s*\{/,
            // {name} = () => {
            /['"]?([$_A-Za-z][$_A-Za-z0-9]*)['"]?\s*[:=]\s*\(.*?\)\s*=>/
        ];
        var lines = source.split('\n');

        // Walk backwards in the source lines until we find the line which matches one of the patterns above
        var code = '';
        var maxLines = Math.min(lineNumber, 20);
        for (var i = 0; i < maxLines; ++i) {
            // lineNo is 1-based, source[] is 0-based
            var line = lines[lineNumber - i - 1];
            var commentPos = line.indexOf('//');
            if (commentPos >= 0) {
                line = line.substr(0, commentPos);
            }

            if (line) {
                code = line + code;
                var len = syntaxes.length;
                for (var index = 0; index < len; index++) {
                    var m = syntaxes[index].exec(code);
                    if (m && m[1]) {
                        return m[1];
                    }
                }
            }
        }
        return undefined;
    }

    function _ensureSupportedEnvironment() {
        if (typeof Object.defineProperty !== 'function' || typeof Object.create !== 'function') {
            throw new Error('Unable to consume source maps in older browsers');
        }
    }

    function _ensureStackFrameIsLegit(stackframe) {
        if (typeof stackframe !== 'object') {
            throw new TypeError('Given StackFrame is not an object');
        } else if (typeof stackframe.fileName !== 'string') {
            throw new TypeError('Given file name is not a String');
        } else if (typeof stackframe.lineNumber !== 'number' ||
            stackframe.lineNumber % 1 !== 0 ||
            stackframe.lineNumber < 1) {
            throw new TypeError('Given line number must be a positive integer');
        } else if (typeof stackframe.columnNumber !== 'number' ||
            stackframe.columnNumber % 1 !== 0 ||
            stackframe.columnNumber < 0) {
            throw new TypeError('Given column number must be a non-negative integer');
        }
        return true;
    }

    function _findSourceMappingURL(source) {
        var sourceMappingUrlRegExp = /\/\/[#@] ?sourceMappingURL=([^\s'"]+)\s*$/mg;
        var lastSourceMappingUrl;
        var matchSourceMappingUrl;
        while (matchSourceMappingUrl = sourceMappingUrlRegExp.exec(source)) { // jshint ignore:line
            lastSourceMappingUrl = matchSourceMappingUrl[1];
        }
        if (lastSourceMappingUrl) {
            return lastSourceMappingUrl;
        } else {
            throw new Error('sourceMappingURL not found');
        }
    }

    function _extractLocationInfoFromSourceMapSource(stackframe, sourceMapConsumer, sourceCache) {
        return new Promise(function(resolve, reject) {
            var loc = sourceMapConsumer.originalPositionFor({
                line: stackframe.lineNumber,
                column: stackframe.columnNumber
            });

            if (loc.source) {
                // cache mapped sources
                var mappedSource = sourceMapConsumer.sourceContentFor(loc.source);
                if (mappedSource) {
                    sourceCache[loc.source] = mappedSource;
                }

                resolve(
                    // given stackframe and source location, update stackframe
                    new StackFrame({
                        functionName: loc.name || stackframe.functionName,
                        args: stackframe.args,
                        fileName: loc.source,
                        lineNumber: loc.line,
                        columnNumber: loc.column
                    }));
            } else {
                reject(new Error('Could not get original source for given stackframe and source map'));
            }
        });
    }

    /**
     * @constructor
     * @param {Object} opts
     *      opts.sourceCache = {url: "Source String"} => preload source cache
     *      opts.sourceMapConsumerCache = {/path/file.js.map: SourceMapConsumer}
     *      opts.offline = True to prevent network requests.
     *              Best effort without sources or source maps.
     *      opts.ajax = Promise returning function to make X-Domain requests
     */
    return function StackTraceGPS(opts) {
        if (!(this instanceof StackTraceGPS)) {
            return new StackTraceGPS(opts);
        }
        opts = opts || {};

        this.sourceCache = opts.sourceCache || {};
        this.sourceMapConsumerCache = opts.sourceMapConsumerCache || {};

        this.ajax = opts.ajax || _xdr;

        this._atob = opts.atob || _atob;

        this._get = function _get(location) {
            return new Promise(function(resolve, reject) {
                var isDataUrl = location.substr(0, 5) === 'data:';
                if (this.sourceCache[location]) {
                    resolve(this.sourceCache[location]);
                } else if (opts.offline && !isDataUrl) {
                    reject(new Error('Cannot make network requests in offline mode'));
                } else {
                    if (isDataUrl) {
                        // data URLs can have parameters.
                        // see http://tools.ietf.org/html/rfc2397
                        var supportedEncodingRegexp =
                            /^data:application\/json;([\w=:"-]+;)*base64,/;
                        var match = location.match(supportedEncodingRegexp);
                        if (match) {
                            var sourceMapStart = match[0].length;
                            var encodedSource = location.substr(sourceMapStart);
                            var source = this._atob(encodedSource);
                            this.sourceCache[location] = source;
                            resolve(source);
                        } else {
                            reject(new Error('The encoding of the inline sourcemap is not supported'));
                        }
                    } else {
                        var xhrPromise = this.ajax(location, {method: 'get'});
                        // Cache the Promise to prevent duplicate in-flight requests
                        this.sourceCache[location] = xhrPromise;
                        xhrPromise.then(resolve, reject);
                    }
                }
            }.bind(this));
        };

        /**
         * Creating SourceMapConsumers is expensive, so this wraps the creation of a
         * SourceMapConsumer in a per-instance cache.
         *
         * @param {String} sourceMappingURL = URL to fetch source map from
         * @param {String} defaultSourceRoot = Default source root for source map if undefined
         * @returns {Promise} that resolves a SourceMapConsumer
         */
        this._getSourceMapConsumer = function _getSourceMapConsumer(sourceMappingURL, defaultSourceRoot) {
            return new Promise(function(resolve, reject) {
                if (this.sourceMapConsumerCache[sourceMappingURL]) {
                    resolve(this.sourceMapConsumerCache[sourceMappingURL]);
                } else {
                    var sourceMapConsumerPromise = new Promise(function(resolve, reject) {
                        return this._get(sourceMappingURL).then(function(sourceMapSource) {
                            if (typeof sourceMapSource === 'string') {
                                sourceMapSource = _parseJson(sourceMapSource.replace(/^\)\]\}'/, ''));
                            }
                            if (typeof sourceMapSource.sourceRoot === 'undefined') {
                                sourceMapSource.sourceRoot = defaultSourceRoot;
                            }

                            resolve(new SourceMap.SourceMapConsumer(sourceMapSource));
                        }, reject);
                    }.bind(this));
                    this.sourceMapConsumerCache[sourceMappingURL] = sourceMapConsumerPromise;
                    resolve(sourceMapConsumerPromise);
                }
            }.bind(this));
        };

        /**
         * Given a StackFrame, enhance function name and use source maps for a
         * better StackFrame.
         *
         * @param {StackFrame} stackframe object
         * @returns {Promise} that resolves with with source-mapped StackFrame
         */
        this.pinpoint = function StackTraceGPS$$pinpoint(stackframe) {
            return new Promise(function(resolve, reject) {
                this.getMappedLocation(stackframe).then(function(mappedStackFrame) {
                    function resolveMappedStackFrame() {
                        resolve(mappedStackFrame);
                    }

                    this.findFunctionName(mappedStackFrame)
                        .then(resolve, resolveMappedStackFrame)
                        ['catch'](resolveMappedStackFrame);
                }.bind(this), reject);
            }.bind(this));
        };

        /**
         * Given a StackFrame, guess function name from location information.
         *
         * @param {StackFrame} stackframe
         * @returns {Promise} that resolves with enhanced StackFrame.
         */
        this.findFunctionName = function StackTraceGPS$$findFunctionName(stackframe) {
            return new Promise(function(resolve, reject) {
                _ensureStackFrameIsLegit(stackframe);
                this._get(stackframe.fileName).then(function getSourceCallback(source) {
                    var lineNumber = stackframe.lineNumber;
                    var columnNumber = stackframe.columnNumber;
                    var guessedFunctionName = _findFunctionName(source, lineNumber, columnNumber);
                    // Only replace functionName if we found something
                    if (guessedFunctionName) {
                        resolve(new StackFrame({
                            functionName: guessedFunctionName,
                            args: stackframe.args,
                            fileName: stackframe.fileName,
                            lineNumber: lineNumber,
                            columnNumber: columnNumber
                        }));
                    } else {
                        resolve(stackframe);
                    }
                }, reject)['catch'](reject);
            }.bind(this));
        };

        /**
         * Given a StackFrame, seek source-mapped location and return new enhanced StackFrame.
         *
         * @param {StackFrame} stackframe
         * @returns {Promise} that resolves with enhanced StackFrame.
         */
        this.getMappedLocation = function StackTraceGPS$$getMappedLocation(stackframe) {
            return new Promise(function(resolve, reject) {
                _ensureSupportedEnvironment();
                _ensureStackFrameIsLegit(stackframe);

                var sourceCache = this.sourceCache;
                var fileName = stackframe.fileName;
                this._get(fileName).then(function(source) {
                    var sourceMappingURL = _findSourceMappingURL(source);
                    var isDataUrl = sourceMappingURL.substr(0, 5) === 'data:';
                    var defaultSourceRoot = fileName.substring(0, fileName.lastIndexOf('/') + 1);

                    if (sourceMappingURL[0] !== '/' && !isDataUrl && !(/^https?:\/\/|^\/\//i).test(sourceMappingURL)) {
                        sourceMappingURL = defaultSourceRoot + sourceMappingURL;
                    }

                    return this._getSourceMapConsumer(sourceMappingURL, defaultSourceRoot)
                        .then(function(sourceMapConsumer) {
                            return _extractLocationInfoFromSourceMapSource(stackframe, sourceMapConsumer, sourceCache)
                                .then(resolve)['catch'](function() {
                                resolve(stackframe);
                            });
                        });
                }.bind(this), reject)['catch'](reject);
            }.bind(this));
        };
    };
}));

},{"source-map/lib/source-map-consumer":294,"stackframe":288}],297:[function(require,module,exports){
(function(root, factory) {
    'use strict';
    // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.

    /* istanbul ignore next */
    if (typeof define === 'function' && define.amd) {
        define('stacktrace', ['error-stack-parser', 'stack-generator', 'stacktrace-gps'], factory);
    } else if (typeof exports === 'object') {
        module.exports = factory(require('error-stack-parser'), require('stack-generator'), require('stacktrace-gps'));
    } else {
        root.StackTrace = factory(root.ErrorStackParser, root.StackGenerator, root.StackTraceGPS);
    }
}(this, function StackTrace(ErrorStackParser, StackGenerator, StackTraceGPS) {
    var _options = {
        filter: function(stackframe) {
            // Filter out stackframes for this library by default
            return (stackframe.functionName || '').indexOf('StackTrace$$') === -1 &&
                (stackframe.functionName || '').indexOf('ErrorStackParser$$') === -1 &&
                (stackframe.functionName || '').indexOf('StackTraceGPS$$') === -1 &&
                (stackframe.functionName || '').indexOf('StackGenerator$$') === -1;
        },
        sourceCache: {}
    };

    var _generateError = function StackTrace$$GenerateError() {
        try {
            // Error must be thrown to get stack in IE
            throw new Error();
        } catch (err) {
            return err;
        }
    };

    /**
     * Merge 2 given Objects. If a conflict occurs the second object wins.
     * Does not do deep merges.
     *
     * @param {Object} first base object
     * @param {Object} second overrides
     * @returns {Object} merged first and second
     * @private
     */
    function _merge(first, second) {
        var target = {};

        [first, second].forEach(function(obj) {
            for (var prop in obj) {
                if (obj.hasOwnProperty(prop)) {
                    target[prop] = obj[prop];
                }
            }
            return target;
        });

        return target;
    }

    function _isShapedLikeParsableError(err) {
        return err.stack || err['opera#sourceloc'];
    }

    function _filtered(stackframes, filter) {
        if (typeof filter === 'function') {
            return stackframes.filter(filter);
        }
        return stackframes;
    }

    return {
        /**
         * Get a backtrace from invocation point.
         *
         * @param {Object} opts
         * @returns {Array} of StackFrame
         */
        get: function StackTrace$$get(opts) {
            var err = _generateError();
            return _isShapedLikeParsableError(err) ? this.fromError(err, opts) : this.generateArtificially(opts);
        },

        /**
         * Get a backtrace from invocation point.
         * IMPORTANT: Does not handle source maps or guess function names!
         *
         * @param {Object} opts
         * @returns {Array} of StackFrame
         */
        getSync: function StackTrace$$getSync(opts) {
            opts = _merge(_options, opts);
            var err = _generateError();
            var stack = _isShapedLikeParsableError(err) ? ErrorStackParser.parse(err) : StackGenerator.backtrace(opts);
            return _filtered(stack, opts.filter);
        },

        /**
         * Given an error object, parse it.
         *
         * @param {Error} error object
         * @param {Object} opts
         * @returns {Promise} for Array[StackFrame}
         */
        fromError: function StackTrace$$fromError(error, opts) {
            opts = _merge(_options, opts);
            var gps = new StackTraceGPS(opts);
            return new Promise(function(resolve) {
                var stackframes = _filtered(ErrorStackParser.parse(error), opts.filter);
                resolve(Promise.all(stackframes.map(function(sf) {
                    return new Promise(function(resolve) {
                        function resolveOriginal() {
                            resolve(sf);
                        }

                        gps.pinpoint(sf).then(resolve, resolveOriginal)['catch'](resolveOriginal);
                    });
                })));
            }.bind(this));
        },

        /**
         * Use StackGenerator to generate a backtrace.
         *
         * @param {Object} opts
         * @returns {Promise} of Array[StackFrame]
         */
        generateArtificially: function StackTrace$$generateArtificially(opts) {
            opts = _merge(_options, opts);
            var stackFrames = StackGenerator.backtrace(opts);
            if (typeof opts.filter === 'function') {
                stackFrames = stackFrames.filter(opts.filter);
            }
            return Promise.resolve(stackFrames);
        },

        /**
         * Given a function, wrap it such that invocations trigger a callback that
         * is called with a stack trace.
         *
         * @param {Function} fn to be instrumented
         * @param {Function} callback function to call with a stack trace on invocation
         * @param {Function} errback optional function to call with error if unable to get stack trace.
         * @param {Object} thisArg optional context object (e.g. window)
         */
        instrument: function StackTrace$$instrument(fn, callback, errback, thisArg) {
            if (typeof fn !== 'function') {
                throw new Error('Cannot instrument non-function object');
            } else if (typeof fn.__stacktraceOriginalFn === 'function') {
                // Already instrumented, return given Function
                return fn;
            }

            var instrumented = function StackTrace$$instrumented() {
                try {
                    this.get().then(callback, errback)['catch'](errback);
                    return fn.apply(thisArg || this, arguments);
                } catch (e) {
                    if (_isShapedLikeParsableError(e)) {
                        this.fromError(e).then(callback, errback)['catch'](errback);
                    }
                    throw e;
                }
            }.bind(this);
            instrumented.__stacktraceOriginalFn = fn;

            return instrumented;
        },

        /**
         * Given a function that has been instrumented,
         * revert the function to it's original (non-instrumented) state.
         *
         * @param {Function} fn to de-instrument
         */
        deinstrument: function StackTrace$$deinstrument(fn) {
            if (typeof fn !== 'function') {
                throw new Error('Cannot de-instrument non-function object');
            } else if (typeof fn.__stacktraceOriginalFn === 'function') {
                return fn.__stacktraceOriginalFn;
            } else {
                // Function not instrumented, return original
                return fn;
            }
        },

        /**
         * Given an error message and Array of StackFrames, serialize and POST to given URL.
         *
         * @param {Array} stackframes
         * @param {String} url
         * @param {String} errorMsg
         * @param {Object} requestOptions
         */
        report: function StackTrace$$report(stackframes, url, errorMsg, requestOptions) {
            return new Promise(function(resolve, reject) {
                var req = new XMLHttpRequest();
                req.onerror = reject;
                req.onreadystatechange = function onreadystatechange() {
                    if (req.readyState === 4) {
                        if (req.status >= 200 && req.status < 400) {
                            resolve(req.responseText);
                        } else {
                            reject(new Error('POST to ' + url + ' failed with status: ' + req.status));
                        }
                    }
                };
                req.open('post', url);

                // Set request headers
                req.setRequestHeader('Content-Type', 'application/json');
                if (requestOptions && typeof requestOptions.headers === 'object') {
                    var headers = requestOptions.headers;
                    for (var header in headers) {
                        if (headers.hasOwnProperty(header)) {
                            req.setRequestHeader(header, headers[header]);
                        }
                    }
                }

                var reportPayload = {stack: stackframes};
                if (errorMsg !== undefined && errorMsg !== null) {
                    reportPayload.message = errorMsg;
                }

                req.send(JSON.stringify(reportPayload));
            });
        }
    };
}));

},{"error-stack-parser":172,"stack-generator":287,"stacktrace-gps":296}],298:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

module.exports = Stream;

var EE = require('events').EventEmitter;
var inherits = require('inherits');

inherits(Stream, EE);
Stream.Readable = require('readable-stream/readable.js');
Stream.Writable = require('readable-stream/writable.js');
Stream.Duplex = require('readable-stream/duplex.js');
Stream.Transform = require('readable-stream/transform.js');
Stream.PassThrough = require('readable-stream/passthrough.js');

// Backwards-compat with node 0.4.x
Stream.Stream = Stream;



// old-style streams.  Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.

function Stream() {
  EE.call(this);
}

Stream.prototype.pipe = function(dest, options) {
  var source = this;

  function ondata(chunk) {
    if (dest.writable) {
      if (false === dest.write(chunk) && source.pause) {
        source.pause();
      }
    }
  }

  source.on('data', ondata);

  function ondrain() {
    if (source.readable && source.resume) {
      source.resume();
    }
  }

  dest.on('drain', ondrain);

  // If the 'end' option is not supplied, dest.end() will be called when
  // source gets the 'end' or 'close' events.  Only dest.end() once.
  if (!dest._isStdio && (!options || options.end !== false)) {
    source.on('end', onend);
    source.on('close', onclose);
  }

  var didOnEnd = false;
  function onend() {
    if (didOnEnd) return;
    didOnEnd = true;

    dest.end();
  }


  function onclose() {
    if (didOnEnd) return;
    didOnEnd = true;

    if (typeof dest.destroy === 'function') dest.destroy();
  }

  // don't leave dangling pipes when there are errors.
  function onerror(er) {
    cleanup();
    if (EE.listenerCount(this, 'error') === 0) {
      throw er; // Unhandled stream error in pipe.
    }
  }

  source.on('error', onerror);
  dest.on('error', onerror);

  // remove all the event listeners that were added.
  function cleanup() {
    source.removeListener('data', ondata);
    dest.removeListener('drain', ondrain);

    source.removeListener('end', onend);
    source.removeListener('close', onclose);

    source.removeListener('error', onerror);
    dest.removeListener('error', onerror);

    source.removeListener('end', cleanup);
    source.removeListener('close', cleanup);

    dest.removeListener('close', cleanup);
  }

  source.on('end', cleanup);
  source.on('close', cleanup);

  dest.on('close', cleanup);

  dest.emit('pipe', source);

  // Allow for unix-like usage: A.pipe(B).pipe(C)
  return dest;
};

},{"events":206,"inherits":235,"readable-stream/duplex.js":258,"readable-stream/passthrough.js":267,"readable-stream/readable.js":268,"readable-stream/transform.js":269,"readable-stream/writable.js":270}],299:[function(require,module,exports){
"use strict";

module.exports = parseArgsStringToArgv;
module.exports.parseArgsStringToArgv = parseArgsStringToArgv;

function parseArgsStringToArgv(value, env, file) {
  // ([^\s'"]+(['"])([^\2]*?)\2) Match `text"quotes text"`

  // [^\s'"] or Match if not a space ' or "

  // (['"])([^\4]*?)\4 or Match "quoted text" without quotes
  // `\2` and `\4` are a backreference to the quote style (' or ") captured
  var myRegexp = /([^\s'"]+(['"])([^\2]*?)\2)|[^\s'"]+|(['"])([^\4]*?)\4/gi;
  var myString = value;
  var myArray = [
  ];
  if (env) {
    myArray.push(env);
  }
  if (file) {
    myArray.push(file);
  }
  var match;
  do {
        // Each call to exec returns the next regex match as an array
    match = myRegexp.exec(myString);
    if (match !== null) {
      // Index 1 in the array is the captured group if it exists
      // Index 0 is the matched text, which we use if no captured group exists
      myArray.push(match[1] || match[5] || match[0]);
    }
  } while (match !== null);

  return myArray;
}

},{}],300:[function(require,module,exports){
'use strict';

var Buffer = require('safe-buffer').Buffer;

var isEncoding = Buffer.isEncoding || function (encoding) {
  encoding = '' + encoding;
  switch (encoding && encoding.toLowerCase()) {
    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
      return true;
    default:
      return false;
  }
};

function _normalizeEncoding(enc) {
  if (!enc) return 'utf8';
  var retried;
  while (true) {
    switch (enc) {
      case 'utf8':
      case 'utf-8':
        return 'utf8';
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return 'utf16le';
      case 'latin1':
      case 'binary':
        return 'latin1';
      case 'base64':
      case 'ascii':
      case 'hex':
        return enc;
      default:
        if (retried) return; // undefined
        enc = ('' + enc).toLowerCase();
        retried = true;
    }
  }
};

// Do not cache `Buffer.isEncoding` when checking encoding names as some
// modules monkey-patch it to support additional encodings
function normalizeEncoding(enc) {
  var nenc = _normalizeEncoding(enc);
  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
  return nenc || enc;
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters.
exports.StringDecoder = StringDecoder;
function StringDecoder(encoding) {
  this.encoding = normalizeEncoding(encoding);
  var nb;
  switch (this.encoding) {
    case 'utf16le':
      this.text = utf16Text;
      this.end = utf16End;
      nb = 4;
      break;
    case 'utf8':
      this.fillLast = utf8FillLast;
      nb = 4;
      break;
    case 'base64':
      this.text = base64Text;
      this.end = base64End;
      nb = 3;
      break;
    default:
      this.write = simpleWrite;
      this.end = simpleEnd;
      return;
  }
  this.lastNeed = 0;
  this.lastTotal = 0;
  this.lastChar = Buffer.allocUnsafe(nb);
}

StringDecoder.prototype.write = function (buf) {
  if (buf.length === 0) return '';
  var r;
  var i;
  if (this.lastNeed) {
    r = this.fillLast(buf);
    if (r === undefined) return '';
    i = this.lastNeed;
    this.lastNeed = 0;
  } else {
    i = 0;
  }
  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
  return r || '';
};

StringDecoder.prototype.end = utf8End;

// Returns only complete characters in a Buffer
StringDecoder.prototype.text = utf8Text;

// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
StringDecoder.prototype.fillLast = function (buf) {
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
  this.lastNeed -= buf.length;
};

// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
// continuation byte.
function utf8CheckByte(byte) {
  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
  return -1;
}

// Checks at most 3 bytes at the end of a Buffer in order to detect an
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
// needed to complete the UTF-8 character (if applicable) are returned.
function utf8CheckIncomplete(self, buf, i) {
  var j = buf.length - 1;
  if (j < i) return 0;
  var nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 1;
    return nb;
  }
  if (--j < i) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 2;
    return nb;
  }
  if (--j < i) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) {
      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
    }
    return nb;
  }
  return 0;
}

// Validates as many continuation bytes for a multi-byte UTF-8 character as
// needed or are available. If we see a non-continuation byte where we expect
// one, we "replace" the validated continuation bytes we've seen so far with
// UTF-8 replacement characters ('\ufffd'), to match v8's UTF-8 decoding
// behavior. The continuation byte check is included three times in the case
// where all of the continuation bytes for a character exist in the same buffer.
// It is also done this way as a slight performance increase instead of using a
// loop.
function utf8CheckExtraBytes(self, buf, p) {
  if ((buf[0] & 0xC0) !== 0x80) {
    self.lastNeed = 0;
    return '\ufffd'.repeat(p);
  }
  if (self.lastNeed > 1 && buf.length > 1) {
    if ((buf[1] & 0xC0) !== 0x80) {
      self.lastNeed = 1;
      return '\ufffd'.repeat(p + 1);
    }
    if (self.lastNeed > 2 && buf.length > 2) {
      if ((buf[2] & 0xC0) !== 0x80) {
        self.lastNeed = 2;
        return '\ufffd'.repeat(p + 2);
      }
    }
  }
}

// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
function utf8FillLast(buf) {
  var p = this.lastTotal - this.lastNeed;
  var r = utf8CheckExtraBytes(this, buf, p);
  if (r !== undefined) return r;
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, p, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, p, 0, buf.length);
  this.lastNeed -= buf.length;
}

// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
// partial character, the character's bytes are buffered until the required
// number of bytes are available.
function utf8Text(buf, i) {
  var total = utf8CheckIncomplete(this, buf, i);
  if (!this.lastNeed) return buf.toString('utf8', i);
  this.lastTotal = total;
  var end = buf.length - (total - this.lastNeed);
  buf.copy(this.lastChar, 0, end);
  return buf.toString('utf8', i, end);
}

// For UTF-8, a replacement character for each buffered byte of a (partial)
// character needs to be added to the output.
function utf8End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + '\ufffd'.repeat(this.lastTotal - this.lastNeed);
  return r;
}

// UTF-16LE typically needs two bytes per character, but even if we have an even
// number of bytes available, we need to check if we end on a leading/high
// surrogate. In that case, we need to wait for the next two bytes in order to
// decode the last character properly.
function utf16Text(buf, i) {
  if ((buf.length - i) % 2 === 0) {
    var r = buf.toString('utf16le', i);
    if (r) {
      var c = r.charCodeAt(r.length - 1);
      if (c >= 0xD800 && c <= 0xDBFF) {
        this.lastNeed = 2;
        this.lastTotal = 4;
        this.lastChar[0] = buf[buf.length - 2];
        this.lastChar[1] = buf[buf.length - 1];
        return r.slice(0, -1);
      }
    }
    return r;
  }
  this.lastNeed = 1;
  this.lastTotal = 2;
  this.lastChar[0] = buf[buf.length - 1];
  return buf.toString('utf16le', i, buf.length - 1);
}

// For UTF-16LE we do not explicitly append special replacement characters if we
// end on a partial character, we simply let v8 handle that.
function utf16End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) {
    var end = this.lastTotal - this.lastNeed;
    return r + this.lastChar.toString('utf16le', 0, end);
  }
  return r;
}

function base64Text(buf, i) {
  var n = (buf.length - i) % 3;
  if (n === 0) return buf.toString('base64', i);
  this.lastNeed = 3 - n;
  this.lastTotal = 3;
  if (n === 1) {
    this.lastChar[0] = buf[buf.length - 1];
  } else {
    this.lastChar[0] = buf[buf.length - 2];
    this.lastChar[1] = buf[buf.length - 1];
  }
  return buf.toString('base64', i, buf.length - n);
}

function base64End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
  return r;
}

// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
function simpleWrite(buf) {
  return buf.toString(this.encoding);
}

function simpleEnd(buf) {
  return buf && buf.length ? this.write(buf) : '';
}
},{"safe-buffer":281}],301:[function(require,module,exports){

var thenify = require('thenify')

module.exports = thenifyAll
thenifyAll.withCallback = withCallback
thenifyAll.thenify = thenify

/**
 * Promisifies all the selected functions in an object.
 *
 * @param {Object} source the source object for the async functions
 * @param {Object} [destination] the destination to set all the promisified methods
 * @param {Array} [methods] an array of method names of `source`
 * @return {Object}
 * @api public
 */

function thenifyAll(source, destination, methods) {
  return promisifyAll(source, destination, methods, thenify)
}

/**
 * Promisifies all the selected functions in an object and backward compatible with callback.
 *
 * @param {Object} source the source object for the async functions
 * @param {Object} [destination] the destination to set all the promisified methods
 * @param {Array} [methods] an array of method names of `source`
 * @return {Object}
 * @api public
 */

function withCallback(source, destination, methods) {
  return promisifyAll(source, destination, methods, thenify.withCallback)
}

function promisifyAll(source, destination, methods, promisify) {
  if (!destination) {
    destination = {};
    methods = Object.keys(source)
  }

  if (Array.isArray(destination)) {
    methods = destination
    destination = {}
  }

  if (!methods) {
    methods = Object.keys(source)
  }

  if (typeof source === 'function') destination = promisify(source)

  methods.forEach(function (name) {
    // promisify only if it's a function
    if (typeof source[name] === 'function') destination[name] = promisify(source[name])
  })

  // proxy the rest
  Object.keys(source).forEach(function (name) {
    if (deprecated(source, name)) return
    if (destination[name]) return
    destination[name] = source[name]
  })

  return destination
}

function deprecated(source, name) {
  var desc = Object.getOwnPropertyDescriptor(source, name)
  if (!desc || !desc.get) return false
  if (desc.get.name === 'deprecated') return true
  return false
}

},{"thenify":302}],302:[function(require,module,exports){

var Promise = require('any-promise')
var assert = require('assert')

module.exports = thenify

/**
 * Turn async functions into promises
 *
 * @param {Function} $$__fn__$$
 * @return {Function}
 * @api public
 */

function thenify($$__fn__$$, options) {
  assert(typeof $$__fn__$$ === 'function')
  return eval(createWrapper($$__fn__$$.name, options))
}

/**
 * Turn async functions into promises and backward compatible with callback
 *
 * @param {Function} $$__fn__$$
 * @return {Function}
 * @api public
 */

thenify.withCallback = function ($$__fn__$$, options) {
  assert(typeof $$__fn__$$ === 'function')
  options = options || {}
  options.withCallback = true
  if (options.multiArgs === undefined) options.multiArgs = true
  return eval(createWrapper($$__fn__$$.name, options))
}

function createCallback(resolve, reject, multiArgs) {
  return function(err, value) {
    if (err) return reject(err)
    var length = arguments.length

    if (length <= 2 || !multiArgs) return resolve(value)

    if (Array.isArray(multiArgs)) {
      var values = {}
      for (var i = 1; i < length; i++) values[multiArgs[i - 1]] = arguments[i]
      return resolve(values)
    }

    var values = new Array(length - 1)
    for (var i = 1; i < length; ++i) values[i - 1] = arguments[i]
    resolve(values)
  }
}

function createWrapper(name, options) {
  name = (name || '').replace(/\s|bound(?!$)/g, '')
  options = options || {}
  // default to true
  var multiArgs = options.multiArgs !== undefined ? options.multiArgs : true
  multiArgs = 'var multiArgs = ' + JSON.stringify(multiArgs) + '\n'

  var withCallback = options.withCallback ?
    'var lastType = typeof arguments[len - 1]\n'
    + 'if (lastType === "function") return $$__fn__$$.apply(self, arguments)\n'
   : ''

  return '(function ' + name + '() {\n'
    + 'var self = this\n'
    + 'var len = arguments.length\n'
    + multiArgs
    + withCallback
    + 'var args = new Array(len + 1)\n'
    + 'for (var i = 0; i < len; ++i) args[i] = arguments[i]\n'
    + 'var lastIndex = i\n'
    + 'return new Promise(function (resolve, reject) {\n'
      + 'args[lastIndex] = createCallback(resolve, reject, multiArgs)\n'
      + '$$__fn__$$.apply(self, args)\n'
    + '})\n'
  + '})'
}

},{"any-promise":1,"assert":5}],303:[function(require,module,exports){
var noCase = require('no-case')
var upperCase = require('upper-case')

/**
 * Title case a string.
 *
 * @param  {string} value
 * @param  {string} [locale]
 * @return {string}
 */
module.exports = function (value, locale) {
  return noCase(value, locale).replace(/^.| ./g, function (m) {
    return upperCase(m, locale)
  })
}

},{"no-case":245,"upper-case":304}],304:[function(require,module,exports){
/**
 * Special language-specific overrides.
 *
 * Source: ftp://ftp.unicode.org/Public/UCD/latest/ucd/SpecialCasing.txt
 *
 * @type {Object}
 */
var LANGUAGES = {
  tr: {
    regexp: /[\u0069]/g,
    map: {
      '\u0069': '\u0130'
    }
  },
  az: {
    regexp: /[\u0069]/g,
    map: {
      '\u0069': '\u0130'
    }
  },
  lt: {
    regexp: /[\u0069\u006A\u012F]\u0307|\u0069\u0307[\u0300\u0301\u0303]/g,
    map: {
      '\u0069\u0307': '\u0049',
      '\u006A\u0307': '\u004A',
      '\u012F\u0307': '\u012E',
      '\u0069\u0307\u0300': '\u00CC',
      '\u0069\u0307\u0301': '\u00CD',
      '\u0069\u0307\u0303': '\u0128'
    }
  }
}

/**
 * Upper case a string.
 *
 * @param  {String} str
 * @return {String}
 */
module.exports = function (str, locale) {
  var lang = LANGUAGES[locale]

  str = str == null ? '' : String(str)

  if (lang) {
    str = str.replace(lang.regexp, function (m) { return lang.map[m] })
  }

  return str.toUpperCase()
}

},{}],305:[function(require,module,exports){
var FUNCTIONS = {};

/**
 * Create a function wrapper that specifies the argument length.
 *
 * @param  {number}   arity
 * @param  {Function} fn
 * @return {Function}
 */
module.exports = function (arity, fn) {
  if (!FUNCTIONS[arity]) {
    var params = [];

    if (typeof arity !== 'number') {
      throw new TypeError('Expected arity to be a number, got ' + arity);
    }

    for (var i = 0; i < arity; i++) {
      params.push('_' + i);
    }

    FUNCTIONS[arity] = new Function(
      'fn',
      'return function arity' + arity + ' (' + params.join(', ') + ') { return fn.apply(this, arguments); }'
    );
  }

  return FUNCTIONS[arity](fn);
};

},{}],306:[function(require,module,exports){
(function (global){

/**
 * Module exports.
 */

module.exports = deprecate;

/**
 * Mark that a method should not be used.
 * Returns a modified function which warns once by default.
 *
 * If `localStorage.noDeprecation = true` is set, then it is a no-op.
 *
 * If `localStorage.throwDeprecation = true` is set, then deprecated functions
 * will throw an Error when invoked.
 *
 * If `localStorage.traceDeprecation = true` is set, then deprecated functions
 * will invoke `console.trace()` instead of `console.error()`.
 *
 * @param {Function} fn - the function to deprecate
 * @param {String} msg - the string to print to the console when `fn` is invoked
 * @returns {Function} a new "deprecated" version of `fn`
 * @api public
 */

function deprecate (fn, msg) {
  if (config('noDeprecation')) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (config('throwDeprecation')) {
        throw new Error(msg);
      } else if (config('traceDeprecation')) {
        console.trace(msg);
      } else {
        console.warn(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
}

/**
 * Checks `localStorage` for boolean values for the given `name`.
 *
 * @param {String} name
 * @returns {Boolean}
 * @api private
 */

function config (name) {
  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
  try {
    if (!global.localStorage) return false;
  } catch (_) {
    return false;
  }
  var val = global.localStorage[name];
  if (null == val) return false;
  return String(val).toLowerCase() === 'true';
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],307:[function(require,module,exports){
arguments[4][235][0].apply(exports,arguments)
},{"dup":235}],308:[function(require,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],309:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Trys to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = require('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = require('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":308,"_process":255,"inherits":307}],310:[function(require,module,exports){
/*
 * verror.js: richer JavaScript errors
 */

var mod_assertplus = require('assert-plus');
var mod_util = require('util');

var mod_extsprintf = require('extsprintf');
var mod_isError = require('core-util-is').isError;
var sprintf = mod_extsprintf.sprintf;

/*
 * Public interface
 */

/* So you can 'var VError = require('verror')' */
module.exports = VError;
/* For compatibility */
VError.VError = VError;
/* Other exported classes */
VError.SError = SError;
VError.WError = WError;
VError.MultiError = MultiError;

/*
 * Common function used to parse constructor arguments for VError, WError, and
 * SError.  Named arguments to this function:
 *
 *     strict		force strict interpretation of sprintf arguments, even
 *     			if the options in "argv" don't say so
 *
 *     argv		error's constructor arguments, which are to be
 *     			interpreted as described in README.md.  For quick
 *     			reference, "argv" has one of the following forms:
 *
 *          [ sprintf_args... ]           (argv[0] is a string)
 *          [ cause, sprintf_args... ]    (argv[0] is an Error)
 *          [ options, sprintf_args... ]  (argv[0] is an object)
 *
 * This function normalizes these forms, producing an object with the following
 * properties:
 *
 *    options           equivalent to "options" in third form.  This will never
 *    			be a direct reference to what the caller passed in
 *    			(i.e., it may be a shallow copy), so it can be freely
 *    			modified.
 *
 *    shortmessage      result of sprintf(sprintf_args), taking options.strict
 *    			into account as described in README.md.
 */
function parseConstructorArguments(args)
{
	var argv, options, sprintf_args, shortmessage, k;

	mod_assertplus.object(args, 'args');
	mod_assertplus.bool(args.strict, 'args.strict');
	mod_assertplus.array(args.argv, 'args.argv');
	argv = args.argv;

	/*
	 * First, figure out which form of invocation we've been given.
	 */
	if (argv.length === 0) {
		options = {};
		sprintf_args = [];
	} else if (mod_isError(argv[0])) {
		options = { 'cause': argv[0] };
		sprintf_args = argv.slice(1);
	} else if (typeof (argv[0]) === 'object') {
		options = {};
		for (k in argv[0]) {
			options[k] = argv[0][k];
		}
		sprintf_args = argv.slice(1);
	} else {
		mod_assertplus.string(argv[0],
		    'first argument to VError, SError, or WError ' +
		    'constructor must be a string, object, or Error');
		options = {};
		sprintf_args = argv;
	}

	/*
	 * Now construct the error's message.
	 *
	 * extsprintf (which we invoke here with our caller's arguments in order
	 * to construct this Error's message) is strict in its interpretation of
	 * values to be processed by the "%s" specifier.  The value passed to
	 * extsprintf must actually be a string or something convertible to a
	 * String using .toString().  Passing other values (notably "null" and
	 * "undefined") is considered a programmer error.  The assumption is
	 * that if you actually want to print the string "null" or "undefined",
	 * then that's easy to do that when you're calling extsprintf; on the
	 * other hand, if you did NOT want that (i.e., there's actually a bug
	 * where the program assumes some variable is non-null and tries to
	 * print it, which might happen when constructing a packet or file in
	 * some specific format), then it's better to stop immediately than
	 * produce bogus output.
	 *
	 * However, sometimes the bug is only in the code calling VError, and a
	 * programmer might prefer to have the error message contain "null" or
	 * "undefined" rather than have the bug in the error path crash the
	 * program (making the first bug harder to identify).  For that reason,
	 * by default VError converts "null" or "undefined" arguments to their
	 * string representations and passes those to extsprintf.  Programmers
	 * desiring the strict behavior can use the SError class or pass the
	 * "strict" option to the VError constructor.
	 */
	mod_assertplus.object(options);
	if (!options.strict && !args.strict) {
		sprintf_args = sprintf_args.map(function (a) {
			return (a === null ? 'null' :
			    a === undefined ? 'undefined' : a);
		});
	}

	if (sprintf_args.length === 0) {
		shortmessage = '';
	} else {
		shortmessage = sprintf.apply(null, sprintf_args);
	}

	return ({
	    'options': options,
	    'shortmessage': shortmessage
	});
}

/*
 * See README.md for reference documentation.
 */
function VError()
{
	var args, obj, parsed, cause, ctor, message, k;

	args = Array.prototype.slice.call(arguments, 0);

	/*
	 * This is a regrettable pattern, but JavaScript's built-in Error class
	 * is defined to work this way, so we allow the constructor to be called
	 * without "new".
	 */
	if (!(this instanceof VError)) {
		obj = Object.create(VError.prototype);
		VError.apply(obj, arguments);
		return (obj);
	}

	/*
	 * For convenience and backwards compatibility, we support several
	 * different calling forms.  Normalize them here.
	 */
	parsed = parseConstructorArguments({
	    'argv': args,
	    'strict': false
	});

	/*
	 * If we've been given a name, apply it now.
	 */
	if (parsed.options.name) {
		mod_assertplus.string(parsed.options.name,
		    'error\'s "name" must be a string');
		this.name = parsed.options.name;
	}

	/*
	 * For debugging, we keep track of the original short message (attached
	 * this Error particularly) separately from the complete message (which
	 * includes the messages of our cause chain).
	 */
	this.jse_shortmsg = parsed.shortmessage;
	message = parsed.shortmessage;

	/*
	 * If we've been given a cause, record a reference to it and update our
	 * message appropriately.
	 */
	cause = parsed.options.cause;
	if (cause) {
		mod_assertplus.ok(mod_isError(cause), 'cause is not an Error');
		this.jse_cause = cause;

		if (!parsed.options.skipCauseMessage) {
			message += ': ' + cause.message;
		}
	}

	/*
	 * If we've been given an object with properties, shallow-copy that
	 * here.  We don't want to use a deep copy in case there are non-plain
	 * objects here, but we don't want to use the original object in case
	 * the caller modifies it later.
	 */
	this.jse_info = {};
	if (parsed.options.info) {
		for (k in parsed.options.info) {
			this.jse_info[k] = parsed.options.info[k];
		}
	}

	this.message = message;
	Error.call(this, message);

	if (Error.captureStackTrace) {
		ctor = parsed.options.constructorOpt || this.constructor;
		Error.captureStackTrace(this, ctor);
	}

	return (this);
}

mod_util.inherits(VError, Error);
VError.prototype.name = 'VError';

VError.prototype.toString = function ve_toString()
{
	var str = (this.hasOwnProperty('name') && this.name ||
		this.constructor.name || this.constructor.prototype.name);
	if (this.message)
		str += ': ' + this.message;

	return (str);
};

/*
 * This method is provided for compatibility.  New callers should use
 * VError.cause() instead.  That method also uses the saner `null` return value
 * when there is no cause.
 */
VError.prototype.cause = function ve_cause()
{
	var cause = VError.cause(this);
	return (cause === null ? undefined : cause);
};

/*
 * Static methods
 *
 * These class-level methods are provided so that callers can use them on
 * instances of Errors that are not VErrors.  New interfaces should be provided
 * only using static methods to eliminate the class of programming mistake where
 * people fail to check whether the Error object has the corresponding methods.
 */

VError.cause = function (err)
{
	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
	return (mod_isError(err.jse_cause) ? err.jse_cause : null);
};

VError.info = function (err)
{
	var rv, cause, k;

	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
	cause = VError.cause(err);
	if (cause !== null) {
		rv = VError.info(cause);
	} else {
		rv = {};
	}

	if (typeof (err.jse_info) == 'object' && err.jse_info !== null) {
		for (k in err.jse_info) {
			rv[k] = err.jse_info[k];
		}
	}

	return (rv);
};

VError.findCauseByName = function (err, name)
{
	var cause;

	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
	mod_assertplus.string(name, 'name');
	mod_assertplus.ok(name.length > 0, 'name cannot be empty');

	for (cause = err; cause !== null; cause = VError.cause(cause)) {
		mod_assertplus.ok(mod_isError(cause));
		if (cause.name == name) {
			return (cause);
		}
	}

	return (null);
};

VError.hasCauseWithName = function (err, name)
{
	return (VError.findCauseByName(err, name) !== null);
};

VError.fullStack = function (err)
{
	mod_assertplus.ok(mod_isError(err), 'err must be an Error');

	var cause = VError.cause(err);

	if (cause) {
		return (err.stack + '\ncaused by: ' + VError.fullStack(cause));
	}

	return (err.stack);
};

VError.errorFromList = function (errors)
{
	mod_assertplus.arrayOfObject(errors, 'errors');

	if (errors.length === 0) {
		return (null);
	}

	errors.forEach(function (e) {
		mod_assertplus.ok(mod_isError(e));
	});

	if (errors.length == 1) {
		return (errors[0]);
	}

	return (new MultiError(errors));
};

VError.errorForEach = function (err, func)
{
	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
	mod_assertplus.func(func, 'func');

	if (err instanceof MultiError) {
		err.errors().forEach(function iterError(e) { func(e); });
	} else {
		func(err);
	}
};


/*
 * SError is like VError, but stricter about types.  You cannot pass "null" or
 * "undefined" as string arguments to the formatter.
 */
function SError()
{
	var args, obj, parsed, options;

	args = Array.prototype.slice.call(arguments, 0);
	if (!(this instanceof SError)) {
		obj = Object.create(SError.prototype);
		SError.apply(obj, arguments);
		return (obj);
	}

	parsed = parseConstructorArguments({
	    'argv': args,
	    'strict': true
	});

	options = parsed.options;
	VError.call(this, options, '%s', parsed.shortmessage);

	return (this);
}

/*
 * We don't bother setting SError.prototype.name because once constructed,
 * SErrors are just like VErrors.
 */
mod_util.inherits(SError, VError);


/*
 * Represents a collection of errors for the purpose of consumers that generally
 * only deal with one error.  Callers can extract the individual errors
 * contained in this object, but may also just treat it as a normal single
 * error, in which case a summary message will be printed.
 */
function MultiError(errors)
{
	mod_assertplus.array(errors, 'list of errors');
	mod_assertplus.ok(errors.length > 0, 'must be at least one error');
	this.ase_errors = errors;

	VError.call(this, {
	    'cause': errors[0]
	}, 'first of %d error%s', errors.length, errors.length == 1 ? '' : 's');
}

mod_util.inherits(MultiError, VError);
MultiError.prototype.name = 'MultiError';

MultiError.prototype.errors = function me_errors()
{
	return (this.ase_errors.slice(0));
};


/*
 * See README.md for reference details.
 */
function WError()
{
	var args, obj, parsed, options;

	args = Array.prototype.slice.call(arguments, 0);
	if (!(this instanceof WError)) {
		obj = Object.create(WError.prototype);
		WError.apply(obj, args);
		return (obj);
	}

	parsed = parseConstructorArguments({
	    'argv': args,
	    'strict': false
	});

	options = parsed.options;
	options['skipCauseMessage'] = true;
	VError.call(this, options, '%s', parsed.shortmessage);

	return (this);
}

mod_util.inherits(WError, VError);
WError.prototype.name = 'WError';

WError.prototype.toString = function we_toString()
{
	var str = (this.hasOwnProperty('name') && this.name ||
		this.constructor.name || this.constructor.prototype.name);
	if (this.message)
		str += ': ' + this.message;
	if (this.jse_cause && this.jse_cause.message)
		str += '; caused by ' + this.jse_cause.toString();

	return (str);
};

/*
 * For purely historical reasons, WError's cause() function allows you to set
 * the cause.
 */
WError.prototype.cause = function we_cause(c)
{
	if (mod_isError(c))
		this.jse_cause = c;

	return (this.jse_cause);
};

},{"assert-plus":4,"core-util-is":152,"extsprintf":207,"util":309}],311:[function(require,module,exports){
// Returns a wrapper function that returns a wrapped callback
// The wrapper function should do some stuff, and return a
// presumably different callback function.
// This makes sure that own properties are retained, so that
// decorations and such are not lost along the way.
module.exports = wrappy
function wrappy (fn, cb) {
  if (fn && cb) return wrappy(fn)(cb)

  if (typeof fn !== 'function')
    throw new TypeError('need wrapper function')

  Object.keys(fn).forEach(function (k) {
    wrapper[k] = fn[k]
  })

  return wrapper

  function wrapper() {
    var args = new Array(arguments.length)
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i]
    }
    var ret = fn.apply(this, args)
    var cb = args[args.length-1]
    if (typeof ret === 'function' && ret !== cb) {
      Object.keys(cb).forEach(function (k) {
        ret[k] = cb[k]
      })
    }
    return ret
  }
}

},{}],312:[function(require,module,exports){
module.exports={
  "name": "cucumber",
  "description": "The official JavaScript implementation of Cucumber.",
  "keywords": [
    "testing",
    "bdd",
    "cucumber",
    "gherkin",
    "tests"
  ],
  "version": "4.2.1",
  "homepage": "http://github.com/cucumber/cucumber-js",
  "author": "Julien Biezemans <jb@jbpros.com> (http://jbpros.net)",
  "contributors": [
    "Julien Biezemans <jb@jbpros.com> (http://jbpros.net)",
    "Fernando Acorreia <fernandoacorreia@gmail.com>",
    "Paul Jensen <paulbjensen@gmail.com>",
    "Kushal Pisavadia",
    "Olivier Melcher <olivier.melcher@gmail.com>",
    "Tristan Dunn <tristanzdunn@gmail.com>",
    "Ted de Koning",
    "Renier Morales <renier@morales-rodriguez.net>",
    "Aslak Hellesøy <aslak.hellesoy@gmail.com>",
    "Aaron Garvey",
    "Omar Gonzalez <omar@almerblank.com>",
    "Chris Young <chris@chrisyoung.org>",
    "Israel Halle <isra017@gmail.com>",
    "Matteo Collina <matteo.collina@gmail.com>",
    "Niklas Närhinen <niklas@narhinen.net>",
    "Kim, Jang-hwan <janghwan@gmail.com>",
    "Michael Zedeler <michael@zedeler.dk>",
    "Tom V <tom@toc.com>",
    "David Godfrey <reactiveraven@reactiveraven.co.uk>",
    "Paul Shannon (http://devpaul.com)",
    "Simon Dean <simon@simondean.org> (http://www.simondean.org)",
    "John Wright <johngeorge.wright@gmail.com>",
    "Johny Jose <johny@playlyfe.com>",
    "Marat Dyatko <vectart@gmail.com>",
    "Tim Perry <tim.perry@softwire.com>",
    "Fedotov Daniil <hairyhum@gmail.com>",
    "unknown <jharlin@NormanDev2.telogical.com>",
    "Ben Van Treese <vantreeseba@gmail.com>",
    "Gabe Hayes <gabriel.hayes@gmail.com>",
    "Brian Clozel <brian.clozel@gmail.com>",
    "Lukas Degener <l.degener@tarent.de>",
    "Simon Lampen <simonlampen@vinsight.net>",
    "Eddie Loeffen <eddieloeffen@gmail.com>",
    "Stanley Shyiko <stanley.shyiko@gmail.com>",
    "Artur Kania <kaniartur@gmail.com>",
    "Sam Saccone <sam@samx.it>",
    "Craig Morris <craig.michael.morris@gmail.com>",
    "Gary Taylor <gary.taylor@hismessages.com>",
    "Krispin Schulz <krispin.schulz@blackbridge.com>",
    "Elwyn <elwyn@L1.co.nz>",
    "Jan-Eric Duden <jeduden@gmail.com>",
    "kostya.misura <kostya.misura@gmail.com>",
    "Julian <microweb10@gmail.com>",
    "nebehr <thorgeir@tut.by>",
    "Jesse Harlin <harlinjesse@gmail.com>",
    "Sonny Piers <sonny@fastmail.net>",
    "Will Farrell <will@mojotech.com>",
    "Kevin Kirsche <Kev.Kirsche+GitHub@gmail.com>",
    "chrismilleruk <chrismilleruk@gmail.com>",
    "Mateusz Derks <mateusz.derks@schibsted.pl>",
    "Mark Amery <markamery@btinternet.com>",
    "Artem Repko <roby-boby@ukr.net>",
    "zs-zs <zsolt.zsigmondi@hotmail.com>",
    "Dale Gardner <dalegardner@live.com>",
    "Charles Rudolph <charles.rudolph@originate.com>",
    "Karthik Viswanath <karthik.viswanath-contractor@adp.com>",
    "Marcel Hoyer <mhoyer@pixelplastic.de>",
    "Artem Bronitsky <quex@yandex.ru>",
    "Karine Pires <karine.pires@alterway.fr>",
    "Rick Lee-Morlang <rick@lee-morlang.com>",
    "Noah Davis <noahd1@yahoo.com>",
    "Miika Hänninen <miika.hanninen@gmail.com>",
    "Kevin Goslar <kevin.goslar@gmail.com>",
    "John Krull <astrom.flux@gmail.com>",
    "Maxim Koretskiy <mr.green.tv@gmail.com>",
    "seantdg <sm.davis@gmx.com>",
    "Marc Burton <marc.burton@first-utility.com>",
    "Jonathan Kim <jkimbo@gmail.com>",
    "Ádám Gólya <adam.golya@lab.coop>",
    "Scott Deakin <scott.deakin@kantar.com>",
    "efokschaner <eddyaod@gmail.com>",
    "John McLaughlin <john.mjhm@gmail.com>",
    "Josh Goldberg <joshuakgoldberg@outlook.com>",
    "Artur Pomadowski <artur.pomadowski@gmail.com>",
    "Benjamín Eidelman <beneidel+gh@gmail.com>",
    "Jan Molak <jan.molak@smartcodeltd.co.uk>",
    "dbillingham <dbillinghamuk@yahoo.co.uk>",
    "Jonathan Gomez <jonathanbgomez@gmail.com>",
    "Oliver Rogers <oli.rogers@gmail.com>",
    "Hugues Malphettes <hmalphettes@gmail.com>",
    "gforceg <greghedin@gmail.com>",
    "Zearin <Zearin@users.noreply.github.com>",
    "Cody Ray Hoeft <crhoeft@gmail.com>",
    "Florian Ribon <florian.ribon@gmail.com>",
    "temyers <temyers@users.noreply.github.com>",
    "Martin Delille <martin@phonations.com>",
    "yaronassa <yaronassa@users.noreply.github.com>",
    "Nico Jansen <jansennico@gmail.com>",
    "Łukasz Gandecki <lgandecki@css.edu>",
    "Warren <w.green@hotmail.com>",
    "Vasily Shelkov <vasilydshelkov@gmail.com>",
    "Steve Tooke <tooky@cucumber.io>",
    "João Guilherme Farias Duda <jgfd@cin.ufpe.br>",
    "szymonprz <szymonprz@gmail.com>",
    "Olle Jonsson <olle.jonsson@gmail.com>",
    "Darrin Holst <darrinholst@gmail.com>",
    "Dmitry Shirokov <deadrunk@gmail.com>",
    "Jayson Smith <github@nes.33mail.com>",
    "jshifflet <jason.shifflet@gmail.com>",
    "Máté Karácsony <k_mate@inf.elte.hu>",
    "Ilya Kozhevnikov <github@kozhevnikov.com>",
    "Giuseppe DiBella <gd46@njit.edu>",
    "Marco Muller <marco@remotemetering.net>",
    "Valerio Innocenti Sedili <valerio.innocenti.ext@yoox.com>",
    "Alon Diamant <diamant.alon@gmail.com>",
    "RolandArgos <roland.ormrod@argos.co.uk>",
    "Julian <JuloWaks@users.noreply.github.com>",
    "Bruce Lindsay <skynet1024@gmail.com>",
    "Josua Schmid <jschmid@fastmail.net>",
    "DevSide <thomas.triau@gmail.com>"
  ],
  "repository": {
    "type": "git",
    "url": "git://github.com/cucumber/cucumber-js.git"
  },
  "bugs": {
    "email": "cukes@googlegroups.com",
    "url": "http://github.com/cucumber/cucumber-js/issues"
  },
  "directories": {
    "lib": "./lib"
  },
  "main": "./lib/index",
  "engines": {
    "node": ">=0.10"
  },
  "dependencies": {
    "assertion-error-formatter": "^2.0.1",
    "babel-runtime": "^6.11.6",
    "bluebird": "^3.4.1",
    "cli-table": "^0.3.1",
    "colors": "^1.1.2",
    "commander": "^2.9.0",
    "cucumber-expressions": "^5.0.13",
    "cucumber-tag-expressions": "^1.1.1",
    "duration": "^0.2.0",
    "escape-string-regexp": "^1.0.5",
    "figures": "2.0.0",
    "gherkin": "^5.0.0",
    "glob": "^7.0.0",
    "indent-string": "^3.1.0",
    "is-generator": "^1.0.2",
    "is-stream": "^1.1.0",
    "knuth-shuffle-seeded": "^1.0.6",
    "lodash": "^4.17.4",
    "mz": "^2.4.0",
    "progress": "^2.0.0",
    "resolve": "^1.3.3",
    "serialize-error": "^2.1.0",
    "stack-chain": "^2.0.0",
    "stacktrace-js": "^2.0.0",
    "string-argv": "0.0.2",
    "title-case": "^2.1.1",
    "util-arity": "^1.0.2",
    "verror": "^1.9.0"
  },
  "devDependencies": {
    "ansi-html": "^0.0.7",
    "babel-cli": "^6.10.1",
    "babel-eslint": "^8.0.1",
    "babel-plugin-external-helpers": "^6.18.0",
    "babel-plugin-istanbul": "^4.1.3",
    "babel-plugin-transform-async-to-module-method": "^6.16.0",
    "babel-plugin-transform-function-bind": "^6.8.0",
    "babel-plugin-transform-object-rest-spread": "^6.23.0",
    "babel-plugin-transform-promise-to-bluebird": "^1.1.1",
    "babel-plugin-transform-runtime": "^6.9.0",
    "babel-preset-es2015": "^6.9.0",
    "babel-register": "^6.9.0",
    "babelify": "^7.3.0",
    "browserify": "^14.3.0",
    "chai": "^4.0.1",
    "coffee-script": "^1.10.0",
    "connect": "^3.4.0",
    "coveralls": "^3.0.0",
    "dependency-lint": "^5.0.1",
    "eslint": "^4.1.1",
    "eslint-config-prettier": "^2.2.0",
    "eslint-config-standard": "^11.0.0-beta.0",
    "eslint-plugin-babel": "^4.0.0",
    "eslint-plugin-import": "^2.8.0",
    "eslint-plugin-node": "^5.2.1",
    "eslint-plugin-prettier": "^2.1.2",
    "eslint-plugin-promise": "^3.6.0",
    "eslint-plugin-standard": "^3.0.1",
    "fs-extra": "^4.0.2",
    "mocha": "^4.0.1",
    "mustache": "^2.3.0",
    "nyc": "^11.0.2",
    "prettier": "^1.5.2",
    "regenerator-runtime": "^0.11.0",
    "serve-static": "^1.10.0",
    "sinon": "^4.0.1",
    "sinon-chai": "^2.11.0",
    "stream-to-string": "^1.1.0",
    "tmp": "^0.0.33"
  },
  "scripts": {
    "build-browser-example": "BABEL_ENV=browser browserify example/index.js -o dist/browser-example.js -t babelify",
    "build-local-continuous": "babel src --watch -d lib --ignore '**/*_spec.js'",
    "build-local": "babel src -d lib --ignore '**/*_spec.js'",
    "build-release": "BABEL_ENV=browser browserify src/index.js -o dist/cucumber.js -t babelify --standalone Cucumber",
    "feature-test": "node ./bin/cucumber-js",
    "lint-dependencies": "dependency-lint",
    "lint-code": "eslint \"{example,features,scripts,src,test}/**/*.js\"",
    "lint-autofix": "eslint --fix \"{example,features,scripts,src,test}/**/*.js\"",
    "lint": "yarn run lint-code && yarn run lint-dependencies",
    "prefeature-test": "yarn run build-local",
    "prepublish": "yarn run build-local",
    "test-coverage": "yarn run lint && ./scripts/test-coverage.sh",
    "test": "yarn run lint && yarn run unit-test && yarn run feature-test",
    "unit-test": "mocha src"
  },
  "bin": {
    "cucumber-js": "./bin/cucumber-js"
  },
  "license": "MIT",
  "files": [
    "bin/",
    "dist/",
    "lib/"
  ]
}

},{}],313:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _commander = require('commander');

var _package = require('../../package.json');

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _gherkin = require('gherkin');

var _gherkin2 = _interopRequireDefault(_gherkin);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var ArgvParser = function () {
  function ArgvParser() {
    (0, _classCallCheck3.default)(this, ArgvParser);
  }

  (0, _createClass3.default)(ArgvParser, null, [{
    key: 'collect',
    value: function collect(val, memo) {
      memo.push(val);
      return memo;
    }
  }, {
    key: 'mergeJson',
    value: function mergeJson(option) {
      return function (str, memo) {
        var val = void 0;
        try {
          val = JSON.parse(str);
        } catch (error) {
          throw new Error(option + ' passed invalid JSON: ' + error.message + ': ' + str);
        }
        if (!_lodash2.default.isPlainObject(val)) {
          throw new Error(option + ' must be passed JSON of an object: ' + str);
        }
        return _lodash2.default.merge(memo, val);
      };
    }
  }, {
    key: 'mergeTags',
    value: function mergeTags(val, memo) {
      return memo === '' ? '(' + val + ')' : memo + ' and (' + val + ')';
    }
  }, {
    key: 'validateLanguage',
    value: function validateLanguage(val) {
      if (!_lodash2.default.includes(_lodash2.default.keys(_gherkin2.default.DIALECTS), val)) {
        throw new Error('Unsupported ISO 639-1: ' + val);
      }
      return val;
    }
  }, {
    key: 'parse',
    value: function parse(argv) {
      var program = new _commander.Command(_path2.default.basename(argv[1]));

      program.usage('[options] [<GLOB|DIR|FILE[:LINE]>...]').version(_package.version, '-v, --version').option('-b, --backtrace', 'show full backtrace for errors').option('-d, --dry-run', 'invoke formatters without executing steps').option('--exit', 'force shutdown of the event loop when the test run has finished: cucumber will call process.exit').option('--fail-fast', 'abort the run on first failure').option('-f, --format <TYPE[:PATH]>', 'specify the output format, optionally supply PATH to redirect formatter output (repeatable)', ArgvParser.collect, []).option('--format-options <JSON>', 'provide options for formatters (repeatable)', ArgvParser.mergeJson('--format-options'), {}).option('--i18n-keywords <ISO 639-1>', 'list language keywords', ArgvParser.validateLanguage, '').option('--i18n-languages', 'list languages').option('--language <ISO 639-1>', 'provide the default language for feature files', '').option('--name <REGEXP>', 'only execute the scenarios with name matching the expression (repeatable)', ArgvParser.collect, []).option('--no-strict', 'succeed even if there are pending steps').option('--order <TYPE[:SEED]>', 'run scenarios in the specified order. Type should be `defined` or `random`', 'defined').option('-p, --profile <NAME>', 'specify the profile to use (repeatable)', ArgvParser.collect, []).option('--parallel <NUMBER_OF_SLAVES>', 'run in parallel with the given number of slaves', parseInt, 0).option('-r, --require <GLOB|DIR|FILE>', 'require files before executing features (repeatable)', ArgvParser.collect, []).option('--require-module <NODE_MODULE>', 'require node modules before requiring files (repeatable)', ArgvParser.collect, []).option('-t, --tags <EXPRESSION>', 'only execute the features or scenarios with tags matching the expression (repeatable)', ArgvParser.mergeTags, '').option('--world-parameters <JSON>', 'provide parameters that will be passed to the world constructor (repeatable)', ArgvParser.mergeJson('--world-parameters'), {});

      program.on('--help', function () {
        /* eslint-disable no-console */
        console.log('  For more details please visit https://github.com/cucumber/cucumber-js#cli\n');
        /* eslint-enable no-console */
      });

      program.parse(argv);

      return {
        options: program.opts(),
        args: program.args
      };
    }
  }]);
  return ArgvParser;
}();

exports.default = ArgvParser;

},{"../../package.json":312,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"commander":63,"gherkin":211,"lodash":241,"path":251}],314:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray2 = require('babel-runtime/helpers/slicedToArray');

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _argv_parser = require('./argv_parser');

var _argv_parser2 = _interopRequireDefault(_argv_parser);

var _fs = require('mz/fs');

var _fs2 = _interopRequireDefault(_fs);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _option_splitter = require('./option_splitter');

var _option_splitter2 = _interopRequireDefault(_option_splitter);

var _glob = require('glob');

var _glob2 = _interopRequireDefault(_glob);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var globP = (0, _bluebird.promisify)(_glob2.default);

var ConfigurationBuilder = function () {
  (0, _createClass3.default)(ConfigurationBuilder, null, [{
    key: 'build',
    value: function () {
      var _ref = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee(options) {
        var builder;
        return _regenerator2.default.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                builder = new ConfigurationBuilder(options);
                return _context.abrupt('return', builder.build());

              case 2:
              case 'end':
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function build(_x) {
        return _ref.apply(this, arguments);
      }

      return build;
    }()
  }]);

  function ConfigurationBuilder(_ref2) {
    var argv = _ref2.argv,
        cwd = _ref2.cwd;
    (0, _classCallCheck3.default)(this, ConfigurationBuilder);

    this.cwd = cwd;

    var parsedArgv = _argv_parser2.default.parse(argv);
    this.args = parsedArgv.args;
    this.options = parsedArgv.options;
  }

  (0, _createClass3.default)(ConfigurationBuilder, [{
    key: 'build',
    value: function () {
      var _ref3 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee2() {
        var listI18nKeywordsFor, listI18nLanguages, unexpandedFeaturePaths, featurePaths, supportCodePaths, unexpandedSupportCodePaths;
        return _regenerator2.default.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                listI18nKeywordsFor = this.options.i18nKeywords;
                listI18nLanguages = !!this.options.i18nLanguages;
                _context2.next = 4;
                return this.getUnexpandedFeaturePaths();

              case 4:
                unexpandedFeaturePaths = _context2.sent;
                featurePaths = [];
                supportCodePaths = [];

                if (!(!listI18nKeywordsFor && !listI18nLanguages)) {
                  _context2.next = 16;
                  break;
                }

                _context2.next = 10;
                return this.expandFeaturePaths(unexpandedFeaturePaths);

              case 10:
                featurePaths = _context2.sent;
                unexpandedSupportCodePaths = this.options.require;

                if (unexpandedSupportCodePaths.length === 0) {
                  unexpandedSupportCodePaths = this.getFeatureDirectoryPaths(featurePaths);
                }
                _context2.next = 15;
                return this.expandPaths(unexpandedSupportCodePaths, '.js');

              case 15:
                supportCodePaths = _context2.sent;

              case 16:
                return _context2.abrupt('return', {
                  featureDefaultLanguage: this.options.language,
                  featurePaths: featurePaths,
                  formats: this.getFormats(),
                  formatOptions: this.getFormatOptions(),
                  listI18nKeywordsFor: listI18nKeywordsFor,
                  listI18nLanguages: listI18nLanguages,
                  order: this.options.order,
                  parallel: this.options.parallel,
                  profiles: this.options.profile,
                  pickleFilterOptions: {
                    featurePaths: unexpandedFeaturePaths,
                    names: this.options.name,
                    tagExpression: this.options.tags
                  },
                  runtimeOptions: {
                    dryRun: !!this.options.dryRun,
                    failFast: !!this.options.failFast,
                    filterStacktraces: !this.options.backtrace,
                    strict: !!this.options.strict,
                    worldParameters: this.options.worldParameters
                  },
                  shouldExitImmediately: !!this.options.exit,
                  supportCodePaths: supportCodePaths,
                  supportCodeRequiredModules: this.options.requireModule
                });

              case 17:
              case 'end':
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function build() {
        return _ref3.apply(this, arguments);
      }

      return build;
    }()
  }, {
    key: 'expandPaths',
    value: function () {
      var _ref4 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee5(unexpandedPaths, defaultExtension) {
        var _this = this;

        var expandedPaths;
        return _regenerator2.default.wrap(function _callee5$(_context5) {
          while (1) {
            switch (_context5.prev = _context5.next) {
              case 0:
                _context5.next = 2;
                return _bluebird2.default.map(unexpandedPaths, function () {
                  var _ref5 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee4(unexpandedPath) {
                    var matches;
                    return _regenerator2.default.wrap(function _callee4$(_context4) {
                      while (1) {
                        switch (_context4.prev = _context4.next) {
                          case 0:
                            _context4.next = 2;
                            return globP(unexpandedPath, {
                              absolute: true,
                              cwd: _this.cwd
                            });

                          case 2:
                            matches = _context4.sent;
                            return _context4.abrupt('return', _bluebird2.default.map(matches, function () {
                              var _ref6 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee3(match) {
                                return _regenerator2.default.wrap(function _callee3$(_context3) {
                                  while (1) {
                                    switch (_context3.prev = _context3.next) {
                                      case 0:
                                        if (!(_path2.default.extname(match) === '')) {
                                          _context3.next = 2;
                                          break;
                                        }

                                        return _context3.abrupt('return', globP(match + '/**/*' + defaultExtension));

                                      case 2:
                                        return _context3.abrupt('return', match);

                                      case 3:
                                      case 'end':
                                        return _context3.stop();
                                    }
                                  }
                                }, _callee3, _this);
                              }));

                              return function (_x5) {
                                return _ref6.apply(this, arguments);
                              };
                            }()));

                          case 4:
                          case 'end':
                            return _context4.stop();
                        }
                      }
                    }, _callee4, _this);
                  }));

                  return function (_x4) {
                    return _ref5.apply(this, arguments);
                  };
                }());

              case 2:
                expandedPaths = _context5.sent;
                return _context5.abrupt('return', _lodash2.default.flattenDepth(expandedPaths, 2).map(function (x) {
                  return _path2.default.normalize(x);
                }));

              case 4:
              case 'end':
                return _context5.stop();
            }
          }
        }, _callee5, this);
      }));

      function expandPaths(_x2, _x3) {
        return _ref4.apply(this, arguments);
      }

      return expandPaths;
    }()
  }, {
    key: 'expandFeaturePaths',
    value: function () {
      var _ref7 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee6(featurePaths) {
        return _regenerator2.default.wrap(function _callee6$(_context6) {
          while (1) {
            switch (_context6.prev = _context6.next) {
              case 0:
                featurePaths = featurePaths.map(function (p) {
                  return p.replace(/(:\d+)*$/g, '');
                }); // Strip line numbers
                return _context6.abrupt('return', this.expandPaths(featurePaths, '.feature'));

              case 2:
              case 'end':
                return _context6.stop();
            }
          }
        }, _callee6, this);
      }));

      function expandFeaturePaths(_x6) {
        return _ref7.apply(this, arguments);
      }

      return expandFeaturePaths;
    }()
  }, {
    key: 'getFeatureDirectoryPaths',
    value: function getFeatureDirectoryPaths(featurePaths) {
      var _this2 = this;

      var featureDirs = featurePaths.map(function (featurePath) {
        var featureDir = _path2.default.dirname(featurePath);
        var childDir = void 0;
        var parentDir = featureDir;
        while (childDir !== parentDir) {
          childDir = parentDir;
          parentDir = _path2.default.dirname(childDir);
          if (_path2.default.basename(parentDir) === 'features') {
            featureDir = parentDir;
            break;
          }
        }
        return _path2.default.relative(_this2.cwd, featureDir);
      });
      return _lodash2.default.uniq(featureDirs);
    }
  }, {
    key: 'getFormatOptions',
    value: function getFormatOptions() {
      var formatOptions = _lodash2.default.clone(this.options.formatOptions);
      formatOptions.cwd = this.cwd;
      _lodash2.default.defaults(formatOptions, { colorsEnabled: true });
      return formatOptions;
    }
  }, {
    key: 'getFormats',
    value: function getFormats() {
      var mapping = { '': 'progress' };
      this.options.format.forEach(function (format) {
        var _OptionSplitter$split = _option_splitter2.default.split(format),
            _OptionSplitter$split2 = (0, _slicedToArray3.default)(_OptionSplitter$split, 2),
            type = _OptionSplitter$split2[0],
            outputTo = _OptionSplitter$split2[1];

        mapping[outputTo || ''] = type;
      });
      return _lodash2.default.map(mapping, function (type, outputTo) {
        return { outputTo: outputTo, type: type };
      });
    }
  }, {
    key: 'getUnexpandedFeaturePaths',
    value: function () {
      var _ref8 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee8() {
        var _this3 = this;

        var nestedFeaturePaths, featurePaths;
        return _regenerator2.default.wrap(function _callee8$(_context8) {
          while (1) {
            switch (_context8.prev = _context8.next) {
              case 0:
                if (!(this.args.length > 0)) {
                  _context8.next = 7;
                  break;
                }

                _context8.next = 3;
                return _bluebird2.default.map(this.args, function () {
                  var _ref9 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee7(arg) {
                    var filename, filePath, content;
                    return _regenerator2.default.wrap(function _callee7$(_context7) {
                      while (1) {
                        switch (_context7.prev = _context7.next) {
                          case 0:
                            filename = _path2.default.basename(arg);

                            if (!(filename[0] === '@')) {
                              _context7.next = 7;
                              break;
                            }

                            filePath = _path2.default.join(_this3.cwd, arg);
                            _context7.next = 5;
                            return _fs2.default.readFile(filePath, 'utf8');

                          case 5:
                            content = _context7.sent;
                            return _context7.abrupt('return', _lodash2.default.chain(content).split('\n').map(_lodash2.default.trim).compact().value());

                          case 7:
                            return _context7.abrupt('return', arg);

                          case 8:
                          case 'end':
                            return _context7.stop();
                        }
                      }
                    }, _callee7, _this3);
                  }));

                  return function (_x7) {
                    return _ref9.apply(this, arguments);
                  };
                }());

              case 3:
                nestedFeaturePaths = _context8.sent;
                featurePaths = _lodash2.default.flatten(nestedFeaturePaths);

                if (!(featurePaths.length > 0)) {
                  _context8.next = 7;
                  break;
                }

                return _context8.abrupt('return', featurePaths);

              case 7:
                return _context8.abrupt('return', ['features/**/*.feature']);

              case 8:
              case 'end':
                return _context8.stop();
            }
          }
        }, _callee8, this);
      }));

      function getUnexpandedFeaturePaths() {
        return _ref8.apply(this, arguments);
      }

      return getUnexpandedFeaturePaths;
    }()
  }]);
  return ConfigurationBuilder;
}();

exports.default = ConfigurationBuilder;

},{"./argv_parser":313,"./option_splitter":319,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/slicedToArray":29,"babel-runtime/regenerator":32,"bluebird":36,"glob":226,"lodash":241,"mz/fs":244,"path":251}],315:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getTestCases = exports.getTestCasesFromFilesystem = exports.getExpandedArgv = undefined;

var _slicedToArray2 = require('babel-runtime/helpers/slicedToArray');

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var getExpandedArgv = exports.getExpandedArgv = function () {
  var _ref2 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee(_ref) {
    var argv = _ref.argv,
        cwd = _ref.cwd;

    var _ArgvParser$parse, options, fullArgv, profileArgv;

    return _regenerator2.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _ArgvParser$parse = _argv_parser2.default.parse(argv), options = _ArgvParser$parse.options;
            fullArgv = argv;
            _context.next = 4;
            return new _profile_loader2.default(cwd).getArgv(options.profile);

          case 4:
            profileArgv = _context.sent;

            if (profileArgv.length > 0) {
              fullArgv = _lodash2.default.concat(argv.slice(0, 2), profileArgv, argv.slice(2));
            }
            return _context.abrupt('return', fullArgv);

          case 7:
          case 'end':
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  return function getExpandedArgv(_x) {
    return _ref2.apply(this, arguments);
  };
}();

var getTestCasesFromFilesystem = exports.getTestCasesFromFilesystem = function () {
  var _ref4 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee3(_ref3) {
    var _this = this;

    var cwd = _ref3.cwd,
        eventBroadcaster = _ref3.eventBroadcaster,
        featureDefaultLanguage = _ref3.featureDefaultLanguage,
        featurePaths = _ref3.featurePaths,
        order = _ref3.order,
        pickleFilter = _ref3.pickleFilter;
    var result;
    return _regenerator2.default.wrap(function _callee3$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            result = [];
            _context3.next = 3;
            return _bluebird2.default.each(featurePaths, function () {
              var _ref5 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee2(featurePath) {
                var source;
                return _regenerator2.default.wrap(function _callee2$(_context2) {
                  while (1) {
                    switch (_context2.prev = _context2.next) {
                      case 0:
                        _context2.next = 2;
                        return _fs2.default.readFile(featurePath, 'utf8');

                      case 2:
                        source = _context2.sent;
                        _context2.t0 = result;
                        _context2.next = 6;
                        return getTestCases({
                          eventBroadcaster: eventBroadcaster,
                          language: featureDefaultLanguage,
                          source: source,
                          pickleFilter: pickleFilter,
                          uri: _path2.default.relative(cwd, featurePath)
                        });

                      case 6:
                        _context2.t1 = _context2.sent;
                        result = _context2.t0.concat.call(_context2.t0, _context2.t1);

                      case 8:
                      case 'end':
                        return _context2.stop();
                    }
                  }
                }, _callee2, _this);
              }));

              return function (_x3) {
                return _ref5.apply(this, arguments);
              };
            }());

          case 3:
            orderTestCases(result, order);
            return _context3.abrupt('return', result);

          case 5:
          case 'end':
            return _context3.stop();
        }
      }
    }, _callee3, this);
  }));

  return function getTestCasesFromFilesystem(_x2) {
    return _ref4.apply(this, arguments);
  };
}();

var getTestCases = exports.getTestCases = function () {
  var _ref7 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee4(_ref6) {
    var eventBroadcaster = _ref6.eventBroadcaster,
        language = _ref6.language,
        pickleFilter = _ref6.pickleFilter,
        source = _ref6.source,
        uri = _ref6.uri;
    var result, events;
    return _regenerator2.default.wrap(function _callee4$(_context4) {
      while (1) {
        switch (_context4.prev = _context4.next) {
          case 0:
            result = [];
            events = _gherkin2.default.generateEvents(source, uri, {}, language);

            events.forEach(function (event) {
              eventBroadcaster.emit(event.type, _lodash2.default.omit(event, 'type'));
              if (event.type === 'pickle') {
                var pickle = event.pickle;

                if (pickleFilter.matches({ pickle: pickle, uri: uri })) {
                  eventBroadcaster.emit('pickle-accepted', { pickle: pickle, uri: uri });
                  result.push({ pickle: pickle, uri: uri });
                } else {
                  eventBroadcaster.emit('pickle-rejected', { pickle: pickle, uri: uri });
                }
              }
              if (event.type === 'attachment') {
                throw new Error('Parse error in \'' + uri + '\': ' + event.data);
              }
            });
            return _context4.abrupt('return', result);

          case 4:
          case 'end':
            return _context4.stop();
        }
      }
    }, _callee4, this);
  }));

  return function getTestCases(_x4) {
    return _ref7.apply(this, arguments);
  };
}();

// Orders the testCases in place - morphs input


exports.orderTestCases = orderTestCases;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _argv_parser = require('./argv_parser');

var _argv_parser2 = _interopRequireDefault(_argv_parser);

var _fs = require('mz/fs');

var _fs2 = _interopRequireDefault(_fs);

var _gherkin = require('gherkin');

var _gherkin2 = _interopRequireDefault(_gherkin);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _profile_loader = require('./profile_loader');

var _profile_loader2 = _interopRequireDefault(_profile_loader);

var _knuthShuffleSeeded = require('knuth-shuffle-seeded');

var _knuthShuffleSeeded2 = _interopRequireDefault(_knuthShuffleSeeded);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function orderTestCases(testCases, order) {
  var _order$split = order.split(':'),
      _order$split2 = (0, _slicedToArray3.default)(_order$split, 2),
      type = _order$split2[0],
      seed = _order$split2[1];

  switch (type) {
    case 'defined':
      break;
    case 'random':
      if (!seed) {
        seed = Math.floor(Math.random() * 1000 * 1000).toString();
        console.warn('Random order using seed: ' + seed);
      }
      (0, _knuthShuffleSeeded2.default)(testCases, seed);
      break;
    default:
      throw new Error('Unrecgonized order type. Should be `defined` or `random`');
  }
}

},{"./argv_parser":313,"./profile_loader":320,"babel-runtime/helpers/slicedToArray":29,"babel-runtime/regenerator":32,"bluebird":36,"gherkin":211,"knuth-shuffle-seeded":240,"lodash":241,"mz/fs":244,"path":251}],316:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _toConsumableArray2 = require('babel-runtime/helpers/toConsumableArray');

var _toConsumableArray3 = _interopRequireDefault(_toConsumableArray2);

exports.getLanguages = getLanguages;
exports.getKeywords = getKeywords;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _gherkin = require('gherkin');

var _gherkin2 = _interopRequireDefault(_gherkin);

var _cliTable = require('cli-table');

var _cliTable2 = _interopRequireDefault(_cliTable);

var _titleCase = require('title-case');

var _titleCase2 = _interopRequireDefault(_titleCase);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var keywords = ['feature', 'background', 'scenario', 'scenarioOutline', 'examples', 'given', 'when', 'then', 'and', 'but'];

function getAsTable(header, rows) {
  var table = new _cliTable2.default({
    chars: {
      bottom: '',
      'bottom-left': '',
      'bottom-mid': '',
      'bottom-right': '',
      left: '',
      'left-mid': '',
      mid: '',
      'mid-mid': '',
      middle: ' | ',
      right: '',
      'right-mid': '',
      top: '',
      'top-left': '',
      'top-mid': '',
      'top-right': ''
    },
    style: {
      border: [],
      'padding-left': 0,
      'padding-right': 0
    }
  });
  table.push(header);
  table.push.apply(table, (0, _toConsumableArray3.default)(rows));
  return table.toString();
}

function getLanguages() {
  var rows = _lodash2.default.map(_gherkin2.default.DIALECTS, function (data, isoCode) {
    return [isoCode, data.name, data.native];
  });
  return getAsTable(['ISO 639-1', 'ENGLISH NAME', 'NATIVE NAME'], rows);
}

function getKeywords(isoCode) {
  var language = _gherkin2.default.DIALECTS[isoCode];
  var rows = _lodash2.default.map(keywords, function (keyword) {
    var words = _lodash2.default.map(language[keyword], function (s) {
      return '"' + s + '"';
    }).join(', ');
    return [(0, _titleCase2.default)(keyword), words];
  });
  return getAsTable(['ENGLISH KEYWORD', 'NATIVE KEYWORDS'], rows);
}

},{"babel-runtime/helpers/toConsumableArray":30,"cli-table":41,"gherkin":211,"lodash":241,"title-case":303}],317:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _helpers = require('../formatter/helpers');

var _helpers2 = require('./helpers');

var _install_validator = require('./install_validator');

var _i18n = require('./i18n');

var I18n = _interopRequireWildcard(_i18n);

var _configuration_builder = require('./configuration_builder');

var _configuration_builder2 = _interopRequireDefault(_configuration_builder);

var _events = require('events');

var _events2 = _interopRequireDefault(_events);

var _builder = require('../formatter/builder');

var _builder2 = _interopRequireDefault(_builder);

var _fs = require('mz/fs');

var _fs2 = _interopRequireDefault(_fs);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _pickle_filter = require('../pickle_filter');

var _pickle_filter2 = _interopRequireDefault(_pickle_filter);

var _master = require('../runtime/parallel/master');

var _master2 = _interopRequireDefault(_master);

var _runtime = require('../runtime');

var _runtime2 = _interopRequireDefault(_runtime);

var _support_code_library_builder = require('../support_code_library_builder');

var _support_code_library_builder2 = _interopRequireDefault(_support_code_library_builder);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var Cli = function () {
  function Cli(_ref) {
    var argv = _ref.argv,
        cwd = _ref.cwd,
        stdout = _ref.stdout;
    (0, _classCallCheck3.default)(this, Cli);

    this.argv = argv;
    this.cwd = cwd;
    this.stdout = stdout;
  }

  (0, _createClass3.default)(Cli, [{
    key: 'getConfiguration',
    value: function () {
      var _ref2 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee() {
        var fullArgv;
        return _regenerator2.default.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                _context.next = 2;
                return (0, _helpers2.getExpandedArgv)({ argv: this.argv, cwd: this.cwd });

              case 2:
                fullArgv = _context.sent;
                return _context.abrupt('return', _configuration_builder2.default.build({ argv: fullArgv, cwd: this.cwd }));

              case 4:
              case 'end':
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function getConfiguration() {
        return _ref2.apply(this, arguments);
      }

      return getConfiguration;
    }()
  }, {
    key: 'initializeFormatters',
    value: function () {
      var _ref4 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee3(_ref3) {
        var _this = this;

        var eventBroadcaster = _ref3.eventBroadcaster,
            formatOptions = _ref3.formatOptions,
            formats = _ref3.formats,
            supportCodeLibrary = _ref3.supportCodeLibrary;
        var streamsToClose, eventDataCollector;
        return _regenerator2.default.wrap(function _callee3$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                streamsToClose = [];
                eventDataCollector = new _helpers.EventDataCollector(eventBroadcaster);
                _context4.next = 4;
                return _bluebird2.default.map(formats, function () {
                  var _ref6 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee2(_ref5) {
                    var _context2;

                    var type = _ref5.type,
                        outputTo = _ref5.outputTo;
                    var stream, fd, typeOptions;
                    return _regenerator2.default.wrap(function _callee2$(_context3) {
                      while (1) {
                        switch (_context3.prev = _context3.next) {
                          case 0:
                            stream = _this.stdout;

                            if (!outputTo) {
                              _context3.next = 7;
                              break;
                            }

                            _context3.next = 4;
                            return _fs2.default.open(_path2.default.resolve(_this.cwd, outputTo), 'w');

                          case 4:
                            fd = _context3.sent;

                            stream = _fs2.default.createWriteStream(null, { fd: fd });
                            streamsToClose.push(stream);

                          case 7:
                            typeOptions = (0, _extends3.default)({
                              eventBroadcaster: eventBroadcaster,
                              eventDataCollector: eventDataCollector,
                              log: (_context2 = stream).write.bind(_context2),
                              stream: stream,
                              supportCodeLibrary: supportCodeLibrary
                            }, formatOptions);
                            return _context3.abrupt('return', _builder2.default.build(type, typeOptions));

                          case 9:
                          case 'end':
                            return _context3.stop();
                        }
                      }
                    }, _callee2, _this);
                  }));

                  return function (_x2) {
                    return _ref6.apply(this, arguments);
                  };
                }());

              case 4:
                return _context4.abrupt('return', function () {
                  return _bluebird2.default.each(streamsToClose, function (stream) {
                    return _bluebird2.default.promisify(stream.end.bind(stream))();
                  });
                });

              case 5:
              case 'end':
                return _context4.stop();
            }
          }
        }, _callee3, this);
      }));

      function initializeFormatters(_x) {
        return _ref4.apply(this, arguments);
      }

      return initializeFormatters;
    }()
  }, {
    key: 'getSupportCodeLibrary',
    value: function getSupportCodeLibrary(_ref7) {
      var supportCodeRequiredModules = _ref7.supportCodeRequiredModules,
          supportCodePaths = _ref7.supportCodePaths;

      supportCodeRequiredModules.map(function (module) {
        return require(module);
      });
      _support_code_library_builder2.default.reset(this.cwd);
      supportCodePaths.forEach(function (codePath) {
        return require(codePath);
      });
      return _support_code_library_builder2.default.finalize();
    }
  }, {
    key: 'run',
    value: function () {
      var _ref8 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee4() {
        var configuration, supportCodeLibrary, eventBroadcaster, cleanup, testCases, success, parallelRuntimeMaster, runtime;
        return _regenerator2.default.wrap(function _callee4$(_context5) {
          while (1) {
            switch (_context5.prev = _context5.next) {
              case 0:
                _context5.next = 2;
                return (0, _install_validator.validateInstall)(this.cwd);

              case 2:
                _context5.next = 4;
                return this.getConfiguration();

              case 4:
                configuration = _context5.sent;

                if (!configuration.listI18nLanguages) {
                  _context5.next = 8;
                  break;
                }

                this.stdout.write(I18n.getLanguages());
                return _context5.abrupt('return', { success: true });

              case 8:
                if (!configuration.listI18nKeywordsFor) {
                  _context5.next = 11;
                  break;
                }

                this.stdout.write(I18n.getKeywords(configuration.listI18nKeywordsFor));
                return _context5.abrupt('return', { success: true });

              case 11:
                supportCodeLibrary = this.getSupportCodeLibrary(configuration);
                eventBroadcaster = new _events2.default();
                _context5.next = 15;
                return this.initializeFormatters({
                  eventBroadcaster: eventBroadcaster,
                  formatOptions: configuration.formatOptions,
                  formats: configuration.formats,
                  supportCodeLibrary: supportCodeLibrary
                });

              case 15:
                cleanup = _context5.sent;
                _context5.next = 18;
                return (0, _helpers2.getTestCasesFromFilesystem)({
                  cwd: this.cwd,
                  eventBroadcaster: eventBroadcaster,
                  featureDefaultLanguage: configuration.featureDefaultLanguage,
                  featurePaths: configuration.featurePaths,
                  order: configuration.order,
                  pickleFilter: new _pickle_filter2.default(configuration.pickleFilterOptions)
                });

              case 18:
                testCases = _context5.sent;
                success = void 0;

                if (!configuration.parallel) {
                  _context5.next = 26;
                  break;
                }

                parallelRuntimeMaster = new _master2.default({
                  eventBroadcaster: eventBroadcaster,
                  options: configuration.runtimeOptions,
                  supportCodePaths: configuration.supportCodePaths,
                  supportCodeRequiredModules: configuration.supportCodeRequiredModules,
                  testCases: testCases
                });
                _context5.next = 24;
                return new _bluebird2.default(function (resolve) {
                  parallelRuntimeMaster.run(configuration.parallel, function (s) {
                    success = s;
                    resolve();
                  });
                });

              case 24:
                _context5.next = 30;
                break;

              case 26:
                runtime = new _runtime2.default({
                  eventBroadcaster: eventBroadcaster,
                  options: configuration.runtimeOptions,
                  supportCodeLibrary: supportCodeLibrary,
                  testCases: testCases
                });
                _context5.next = 29;
                return runtime.start();

              case 29:
                success = _context5.sent;

              case 30:
                _context5.next = 32;
                return cleanup();

              case 32:
                return _context5.abrupt('return', {
                  shouldExitImmediately: configuration.shouldExitImmediately,
                  success: success
                });

              case 33:
              case 'end':
                return _context5.stop();
            }
          }
        }, _callee4, this);
      }));

      function run() {
        return _ref8.apply(this, arguments);
      }

      return run;
    }()
  }]);
  return Cli;
}();

exports.default = Cli;

},{"../formatter/builder":321,"../formatter/helpers":327,"../pickle_filter":351,"../runtime":354,"../runtime/parallel/master":356,"../support_code_library_builder":364,"./configuration_builder":314,"./helpers":315,"./i18n":316,"./install_validator":318,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/extends":26,"babel-runtime/regenerator":32,"bluebird":36,"events":206,"mz/fs":244,"path":251}],318:[function(require,module,exports){
(function (__dirname){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.validateInstall = undefined;

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var validateInstall = exports.validateInstall = function () {
  var _ref = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee(cwd) {
    var projectPath, currentCucumberPath, localCucumberPath;
    return _regenerator2.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            projectPath = _path2.default.join(__dirname, '..', '..');

            if (!(projectPath === cwd)) {
              _context.next = 3;
              break;
            }

            return _context.abrupt('return');

          case 3:
            currentCucumberPath = require.resolve(projectPath);
            _context.next = 6;
            return (0, _bluebird.promisify)(_resolve2.default)('cucumber', {
              basedir: cwd
            });

          case 6:
            localCucumberPath = _context.sent;
            _context.next = 9;
            return _fs2.default.realpath(localCucumberPath);

          case 9:
            localCucumberPath = _context.sent;

            if (!(localCucumberPath !== currentCucumberPath)) {
              _context.next = 12;
              break;
            }

            throw new Error('\n      You appear to be executing an install of cucumber (most likely a global install)\n      that is different from your local install (the one required in your support files).\n      For cucumber to work, you need to execute the same install that is required in your support files.\n      Please execute the locally installed version to run your tests.\n\n      Executed Path: ' + currentCucumberPath + '\n      Local Path:    ' + localCucumberPath + '\n      ');

          case 12:
          case 'end':
            return _context.stop();
        }
      }
    }, _callee, this);
  }));

  return function validateInstall(_x) {
    return _ref.apply(this, arguments);
  };
}();

var _fs = require('mz/fs');

var _fs2 = _interopRequireDefault(_fs);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _resolve = require('resolve');

var _resolve2 = _interopRequireDefault(_resolve);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

}).call(this,"/src/cli")
},{"babel-runtime/regenerator":32,"bluebird":36,"mz/fs":244,"path":251,"resolve":274}],319:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var OptionSplitter = function () {
  function OptionSplitter() {
    (0, _classCallCheck3.default)(this, OptionSplitter);
  }

  (0, _createClass3.default)(OptionSplitter, null, [{
    key: 'split',
    value: function split(option) {
      var parts = option.split(/([^A-Z]):(?!\\)/);

      return parts.reduce(function (memo, part, i) {
        if (partNeedsRecombined(i)) {
          memo.push(parts.slice(i, i + 2).join(''));
        }

        return memo;
      }, []);
    }
  }]);
  return OptionSplitter;
}();

exports.default = OptionSplitter;


function partNeedsRecombined(i) {
  return i % 2 === 0;
}

},{"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24}],320:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

var _bluebird = require('bluebird');

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _fs = require('mz/fs');

var _fs2 = _interopRequireDefault(_fs);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _stringArgv = require('string-argv');

var _stringArgv2 = _interopRequireDefault(_stringArgv);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var ProfileLoader = function () {
  function ProfileLoader(directory) {
    (0, _classCallCheck3.default)(this, ProfileLoader);

    this.directory = directory;
  }

  (0, _createClass3.default)(ProfileLoader, [{
    key: 'getDefinitions',
    value: function () {
      var _ref = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee() {
        var definitionsFilePath, exists, definitions;
        return _regenerator2.default.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                definitionsFilePath = _path2.default.join(this.directory, 'cucumber.js');
                _context.next = 3;
                return _fs2.default.exists(definitionsFilePath);

              case 3:
                exists = _context.sent;

                if (exists) {
                  _context.next = 6;
                  break;
                }

                return _context.abrupt('return', {});

              case 6:
                definitions = require(definitionsFilePath);

                if (!((typeof definitions === 'undefined' ? 'undefined' : (0, _typeof3.default)(definitions)) !== 'object')) {
                  _context.next = 9;
                  break;
                }

                throw new Error(definitionsFilePath + ' does not export an object');

              case 9:
                return _context.abrupt('return', definitions);

              case 10:
              case 'end':
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function getDefinitions() {
        return _ref.apply(this, arguments);
      }

      return getDefinitions;
    }()
  }, {
    key: 'getArgv',
    value: function () {
      var _ref2 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee2(profiles) {
        var definitions, argvs;
        return _regenerator2.default.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                _context2.next = 2;
                return this.getDefinitions();

              case 2:
                definitions = _context2.sent;

                if (profiles.length === 0 && definitions.default) {
                  profiles = ['default'];
                }
                argvs = profiles.map(function (profile) {
                  if (!definitions[profile]) {
                    throw new Error('Undefined profile: ' + profile);
                  }
                  return (0, _stringArgv2.default)(definitions[profile]);
                });
                return _context2.abrupt('return', _lodash2.default.flatten(argvs));

              case 6:
              case 'end':
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function getArgv(_x) {
        return _ref2.apply(this, arguments);
      }

      return getArgv;
    }()
  }]);
  return ProfileLoader;
}();

exports.default = ProfileLoader;

},{"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/typeof":31,"babel-runtime/regenerator":32,"bluebird":36,"lodash":241,"mz/fs":244,"path":251,"string-argv":299}],321:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _event_protocol_formatter = require('./event_protocol_formatter');

var _event_protocol_formatter2 = _interopRequireDefault(_event_protocol_formatter);

var _get_color_fns = require('./get_color_fns');

var _get_color_fns2 = _interopRequireDefault(_get_color_fns);

var _javascript_snippet_syntax = require('./step_definition_snippet_builder/javascript_snippet_syntax');

var _javascript_snippet_syntax2 = _interopRequireDefault(_javascript_snippet_syntax);

var _json_formatter = require('./json_formatter');

var _json_formatter2 = _interopRequireDefault(_json_formatter);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _progress_bar_formatter = require('./progress_bar_formatter');

var _progress_bar_formatter2 = _interopRequireDefault(_progress_bar_formatter);

var _progress_formatter = require('./progress_formatter');

var _progress_formatter2 = _interopRequireDefault(_progress_formatter);

var _rerun_formatter = require('./rerun_formatter');

var _rerun_formatter2 = _interopRequireDefault(_rerun_formatter);

var _snippets_formatter = require('./snippets_formatter');

var _snippets_formatter2 = _interopRequireDefault(_snippets_formatter);

var _step_definition_snippet_builder = require('./step_definition_snippet_builder');

var _step_definition_snippet_builder2 = _interopRequireDefault(_step_definition_snippet_builder);

var _summary_formatter = require('./summary_formatter');

var _summary_formatter2 = _interopRequireDefault(_summary_formatter);

var _usage_formatter = require('./usage_formatter');

var _usage_formatter2 = _interopRequireDefault(_usage_formatter);

var _usage_json_formatter = require('./usage_json_formatter');

var _usage_json_formatter2 = _interopRequireDefault(_usage_json_formatter);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var FormatterBuilder = function () {
  function FormatterBuilder() {
    (0, _classCallCheck3.default)(this, FormatterBuilder);
  }

  (0, _createClass3.default)(FormatterBuilder, null, [{
    key: 'build',
    value: function build(type, options) {
      var Formatter = FormatterBuilder.getConstructorByType(type, options);
      var extendedOptions = (0, _extends3.default)({
        colorFns: (0, _get_color_fns2.default)(options.colorsEnabled),
        snippetBuilder: FormatterBuilder.getStepDefinitionSnippetBuilder(options)
      }, options);
      return new Formatter(extendedOptions);
    }
  }, {
    key: 'getConstructorByType',
    value: function getConstructorByType(type, options) {
      switch (type) {
        case 'event-protocol':
          return _event_protocol_formatter2.default;
        case 'json':
          return _json_formatter2.default;
        case 'progress':
          return _progress_formatter2.default;
        case 'progress-bar':
          return _progress_bar_formatter2.default;
        case 'rerun':
          return _rerun_formatter2.default;
        case 'snippets':
          return _snippets_formatter2.default;
        case 'summary':
          return _summary_formatter2.default;
        case 'usage':
          return _usage_formatter2.default;
        case 'usage-json':
          return _usage_json_formatter2.default;
        default:
          return FormatterBuilder.loadCustomFormatter(type, options);
      }
    }
  }, {
    key: 'getStepDefinitionSnippetBuilder',
    value: function getStepDefinitionSnippetBuilder(_ref) {
      var cwd = _ref.cwd,
          snippetInterface = _ref.snippetInterface,
          snippetSyntax = _ref.snippetSyntax,
          supportCodeLibrary = _ref.supportCodeLibrary;

      if (!snippetInterface) {
        snippetInterface = 'synchronous';
      }
      var Syntax = _javascript_snippet_syntax2.default;
      if (snippetSyntax) {
        var fullSyntaxPath = _path2.default.resolve(cwd, snippetSyntax);
        Syntax = require(fullSyntaxPath);
      }
      return new _step_definition_snippet_builder2.default({
        snippetSyntax: new Syntax(snippetInterface),
        parameterTypeRegistry: supportCodeLibrary.parameterTypeRegistry
      });
    }
  }, {
    key: 'loadCustomFormatter',
    value: function loadCustomFormatter(customFormatterPath, _ref2) {
      var cwd = _ref2.cwd;

      var fullCustomFormatterPath = _path2.default.resolve(cwd, customFormatterPath);
      var CustomFormatter = require(fullCustomFormatterPath);
      if (typeof CustomFormatter === 'function') {
        return CustomFormatter;
      } else if (CustomFormatter && typeof CustomFormatter.default === 'function') {
        return CustomFormatter.default;
      }
      throw new Error('Custom formatter (' + customFormatterPath + ') does not export a function');
    }
  }]);
  return FormatterBuilder;
}();

exports.default = FormatterBuilder;

},{"./event_protocol_formatter":322,"./get_color_fns":323,"./json_formatter":336,"./progress_bar_formatter":337,"./progress_formatter":338,"./rerun_formatter":339,"./snippets_formatter":340,"./step_definition_snippet_builder":341,"./step_definition_snippet_builder/javascript_snippet_syntax":342,"./summary_formatter":343,"./usage_formatter":344,"./usage_json_formatter":345,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/extends":26,"path":251}],322:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _escapeStringRegexp = require('escape-string-regexp');

var _escapeStringRegexp2 = _interopRequireDefault(_escapeStringRegexp);

var _ = require('./');

var _2 = _interopRequireDefault(_);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var EVENT_NAMES = ['source', 'attachment', 'gherkin-document', 'pickle', 'pickle-accepted', 'pickle-rejected', 'test-run-started', 'test-case-prepared', 'test-case-started', 'test-step-started', 'test-step-attachment', 'test-step-finished', 'test-case-finished', 'test-run-finished'];

var EventProtocolFormatter = function (_Formatter) {
  (0, _inherits3.default)(EventProtocolFormatter, _Formatter);

  function EventProtocolFormatter(options) {
    (0, _classCallCheck3.default)(this, EventProtocolFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (EventProtocolFormatter.__proto__ || Object.getPrototypeOf(EventProtocolFormatter)).call(this, options));

    EVENT_NAMES.forEach(function (eventName) {
      options.eventBroadcaster.on(eventName, function (data) {
        return _this.logEvent(eventName, data);
      });
    });

    var pathSepRegexp = new RegExp((0, _escapeStringRegexp2.default)(_path2.default.sep), 'g');
    var pathToRemove = _this.cwd.replace(pathSepRegexp, _path2.default.posix.sep) + _path2.default.posix.sep;
    _this.pathRegexp = new RegExp((0, _escapeStringRegexp2.default)(pathToRemove), 'g');
    return _this;
  }

  (0, _createClass3.default)(EventProtocolFormatter, [{
    key: 'logEvent',
    value: function logEvent(eventName, data) {
      var text = JSON.stringify((0, _extends3.default)({ type: eventName }, data), this.formatJsonData.bind(this));
      this.log(text + '\n');
    }
  }, {
    key: 'formatJsonData',
    value: function formatJsonData(key, value) {
      if (value instanceof Error) {
        return value.stack.replace(this.pathRegexp, '');
      }
      return value;
    }
  }]);
  return EventProtocolFormatter;
}(_2.default);

exports.default = EventProtocolFormatter;

},{"./":335,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/extends":26,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28,"escape-string-regexp":205,"path":251}],323:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _defineProperty2 = require('babel-runtime/helpers/defineProperty');

var _defineProperty3 = _interopRequireDefault(_defineProperty2);

exports.default = getColorFns;

var _safe = require('colors/safe');

var _safe2 = _interopRequireDefault(_safe);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function getColorFns(enabled) {
  var _colors$setTheme;

  _safe2.default.enabled = enabled;
  _safe2.default.setTheme((_colors$setTheme = {}, (0, _defineProperty3.default)(_colors$setTheme, _status2.default.AMBIGUOUS, 'red'), (0, _defineProperty3.default)(_colors$setTheme, _status2.default.FAILED, 'red'), (0, _defineProperty3.default)(_colors$setTheme, _status2.default.PASSED, 'green'), (0, _defineProperty3.default)(_colors$setTheme, _status2.default.PENDING, 'yellow'), (0, _defineProperty3.default)(_colors$setTheme, _status2.default.SKIPPED, 'cyan'), (0, _defineProperty3.default)(_colors$setTheme, _status2.default.UNDEFINED, 'yellow'), (0, _defineProperty3.default)(_colors$setTheme, 'location', 'grey'), (0, _defineProperty3.default)(_colors$setTheme, 'tag', 'cyan'), _colors$setTheme));
  return _safe2.default;
}

},{"../status":360,"babel-runtime/helpers/defineProperty":25,"colors/safe":62}],324:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.formatError = formatError;

var _assertionErrorFormatter = require('assertion-error-formatter');

function formatError(error, colorFns) {
  return (0, _assertionErrorFormatter.format)(error, {
    colorFns: {
      diffAdded: colorFns.red,
      diffRemoved: colorFns.green,
      errorMessage: colorFns.red,
      errorStack: colorFns.gray
    }
  });
}

},{"assertion-error-formatter":13}],325:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _gherkin_document_parser = require('./gherkin_document_parser');

var _pickle_parser = require('./pickle_parser');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var EventDataCollector = function () {
  function EventDataCollector(eventBroadcaster) {
    (0, _classCallCheck3.default)(this, EventDataCollector);

    eventBroadcaster.on('gherkin-document', this.storeGherkinDocument.bind(this)).on('pickle-accepted', this.storePickle.bind(this)).on('test-case-prepared', this.storeTestCase.bind(this)).on('test-step-attachment', this.storeTestStepAttachment.bind(this)).on('test-step-finished', this.storeTestStepResult.bind(this)).on('test-case-finished', this.storeTestCaseResult.bind(this));
    this.gherkinDocumentMap = {}; // uri to gherkinDocument
    this.pickleMap = {}; // uri:line to {pickle, uri}
    this.testCaseMap = {}; // uri:line to {sourceLocation, steps, result}
  }

  (0, _createClass3.default)(EventDataCollector, [{
    key: 'getTestCaseKey',
    value: function getTestCaseKey(_ref) {
      var uri = _ref.uri,
          line = _ref.line;

      return uri + ':' + line;
    }
  }, {
    key: 'getTestCaseData',
    value: function getTestCaseData(sourceLocation) {
      return {
        gherkinDocument: this.gherkinDocumentMap[sourceLocation.uri],
        pickle: this.pickleMap[this.getTestCaseKey(sourceLocation)],
        testCase: this.testCaseMap[this.getTestCaseKey(sourceLocation)]
      };
    }
  }, {
    key: 'getTestStepData',
    value: function getTestStepData(_ref2) {
      var sourceLocation = _ref2.testCase.sourceLocation,
          index = _ref2.index;

      var _getTestCaseData = this.getTestCaseData(sourceLocation),
          gherkinDocument = _getTestCaseData.gherkinDocument,
          pickle = _getTestCaseData.pickle,
          testCase = _getTestCaseData.testCase;

      var result = { testStep: testCase.steps[index] };
      if (result.testStep.sourceLocation) {
        var line = result.testStep.sourceLocation.line;

        result.gherkinKeyword = (0, _gherkin_document_parser.getStepLineToKeywordMap)(gherkinDocument)[line];
        result.pickleStep = (0, _pickle_parser.getStepLineToPickledStepMap)(pickle)[line];
      }
      return result;
    }
  }, {
    key: 'storeGherkinDocument',
    value: function storeGherkinDocument(_ref3) {
      var document = _ref3.document,
          uri = _ref3.uri;

      this.gherkinDocumentMap[uri] = document;
    }
  }, {
    key: 'storePickle',
    value: function storePickle(_ref4) {
      var pickle = _ref4.pickle,
          uri = _ref4.uri;

      this.pickleMap[uri + ':' + pickle.locations[0].line] = pickle;
    }
  }, {
    key: 'storeTestCase',
    value: function storeTestCase(_ref5) {
      var sourceLocation = _ref5.sourceLocation,
          steps = _ref5.steps;

      var key = this.getTestCaseKey(sourceLocation);
      this.testCaseMap[key] = { sourceLocation: sourceLocation, steps: steps };
    }
  }, {
    key: 'storeTestStepAttachment',
    value: function storeTestStepAttachment(_ref6) {
      var index = _ref6.index,
          testCase = _ref6.testCase,
          data = _ref6.data,
          media = _ref6.media;

      var key = this.getTestCaseKey(testCase.sourceLocation);
      var step = this.testCaseMap[key].steps[index];
      if (!step.attachments) {
        step.attachments = [];
      }
      step.attachments.push({ data: data, media: media });
    }
  }, {
    key: 'storeTestStepResult',
    value: function storeTestStepResult(_ref7) {
      var index = _ref7.index,
          testCase = _ref7.testCase,
          result = _ref7.result;

      var key = this.getTestCaseKey(testCase.sourceLocation);
      this.testCaseMap[key].steps[index].result = result;
    }
  }, {
    key: 'storeTestCaseResult',
    value: function storeTestCaseResult(_ref8) {
      var sourceLocation = _ref8.sourceLocation,
          result = _ref8.result;

      var key = this.getTestCaseKey(sourceLocation);
      this.testCaseMap[key].result = result;
    }
  }]);
  return EventDataCollector;
}();

exports.default = EventDataCollector;

},{"./gherkin_document_parser":326,"./pickle_parser":331,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24}],326:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getStepLineToKeywordMap = getStepLineToKeywordMap;
exports.getScenarioLineToDescriptionMap = getScenarioLineToDescriptionMap;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function getStepLineToKeywordMap(gherkinDocument) {
  return _lodash2.default.chain(gherkinDocument.feature.children).map('steps').flatten().map(function (step) {
    return [step.location.line, step.keyword];
  }).fromPairs().value();
}

function getScenarioLineToDescriptionMap(gherkinDocument) {
  return _lodash2.default.chain(gherkinDocument.feature.children).map(function (element) {
    return [element.location.line, element.description];
  }).fromPairs().value();
}

},{"lodash":241}],327:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PickleParser = exports.GherkinDocumentParser = exports.getUsage = exports.formatSummary = exports.formatLocation = exports.isIssue = exports.formatIssue = exports.formatError = exports.getStepKeywordType = exports.KeywordType = exports.EventDataCollector = undefined;

var _event_data_collector = require('./event_data_collector');

Object.defineProperty(exports, 'EventDataCollector', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_event_data_collector).default;
  }
});

var _keyword_type = require('./keyword_type');

Object.defineProperty(exports, 'KeywordType', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_keyword_type).default;
  }
});
Object.defineProperty(exports, 'getStepKeywordType', {
  enumerable: true,
  get: function get() {
    return _keyword_type.getStepKeywordType;
  }
});

var _error_helpers = require('./error_helpers');

Object.defineProperty(exports, 'formatError', {
  enumerable: true,
  get: function get() {
    return _error_helpers.formatError;
  }
});

var _issue_helpers = require('./issue_helpers');

Object.defineProperty(exports, 'formatIssue', {
  enumerable: true,
  get: function get() {
    return _issue_helpers.formatIssue;
  }
});
Object.defineProperty(exports, 'isIssue', {
  enumerable: true,
  get: function get() {
    return _issue_helpers.isIssue;
  }
});

var _location_helpers = require('./location_helpers');

Object.defineProperty(exports, 'formatLocation', {
  enumerable: true,
  get: function get() {
    return _location_helpers.formatLocation;
  }
});

var _summary_helpers = require('./summary_helpers');

Object.defineProperty(exports, 'formatSummary', {
  enumerable: true,
  get: function get() {
    return _summary_helpers.formatSummary;
  }
});

var _usage_helpers = require('./usage_helpers');

Object.defineProperty(exports, 'getUsage', {
  enumerable: true,
  get: function get() {
    return _usage_helpers.getUsage;
  }
});

var _gherkin_document_parser = require('./gherkin_document_parser');

var GherkinDocumentParser = _interopRequireWildcard(_gherkin_document_parser);

var _pickle_parser = require('./pickle_parser');

var PickleParser = _interopRequireWildcard(_pickle_parser);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.GherkinDocumentParser = GherkinDocumentParser;
exports.PickleParser = PickleParser;

},{"./error_helpers":324,"./event_data_collector":325,"./gherkin_document_parser":326,"./issue_helpers":328,"./keyword_type":329,"./location_helpers":330,"./pickle_parser":331,"./summary_helpers":333,"./usage_helpers":334}],328:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _toConsumableArray2 = require('babel-runtime/helpers/toConsumableArray');

var _toConsumableArray3 = _interopRequireDefault(_toConsumableArray2);

var _defineProperty2 = require('babel-runtime/helpers/defineProperty');

var _defineProperty3 = _interopRequireDefault(_defineProperty2);

var _CHARACTERS, _IS_ISSUE;

exports.isIssue = isIssue;
exports.formatIssue = formatIssue;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _location_helpers = require('./location_helpers');

var _step_result_helpers = require('./step_result_helpers');

var _indentString = require('indent-string');

var _indentString2 = _interopRequireDefault(_indentString);

var _status = require('../../status');

var _status2 = _interopRequireDefault(_status);

var _figures = require('figures');

var _figures2 = _interopRequireDefault(_figures);

var _cliTable = require('cli-table');

var _cliTable2 = _interopRequireDefault(_cliTable);

var _keyword_type = require('./keyword_type');

var _keyword_type2 = _interopRequireDefault(_keyword_type);

var _step_arguments = require('../../step_arguments');

var _gherkin_document_parser = require('./gherkin_document_parser');

var _pickle_parser = require('./pickle_parser');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var CHARACTERS = (_CHARACTERS = {}, (0, _defineProperty3.default)(_CHARACTERS, _status2.default.AMBIGUOUS, _figures2.default.cross), (0, _defineProperty3.default)(_CHARACTERS, _status2.default.FAILED, _figures2.default.cross), (0, _defineProperty3.default)(_CHARACTERS, _status2.default.PASSED, _figures2.default.tick), (0, _defineProperty3.default)(_CHARACTERS, _status2.default.PENDING, '?'), (0, _defineProperty3.default)(_CHARACTERS, _status2.default.SKIPPED, '-'), (0, _defineProperty3.default)(_CHARACTERS, _status2.default.UNDEFINED, '?'), _CHARACTERS);

var IS_ISSUE = (_IS_ISSUE = {}, (0, _defineProperty3.default)(_IS_ISSUE, _status2.default.AMBIGUOUS, true), (0, _defineProperty3.default)(_IS_ISSUE, _status2.default.FAILED, true), (0, _defineProperty3.default)(_IS_ISSUE, _status2.default.PASSED, false), (0, _defineProperty3.default)(_IS_ISSUE, _status2.default.PENDING, true), (0, _defineProperty3.default)(_IS_ISSUE, _status2.default.SKIPPED, false), (0, _defineProperty3.default)(_IS_ISSUE, _status2.default.UNDEFINED, true), _IS_ISSUE);

function formatDataTable(arg) {
  var rows = arg.rows.map(function (row) {
    return row.cells.map(function (cell) {
      return cell.value.replace(/\\/g, '\\\\').replace(/\n/g, '\\n');
    });
  });
  var table = new _cliTable2.default({
    chars: {
      bottom: '',
      'bottom-left': '',
      'bottom-mid': '',
      'bottom-right': '',
      left: '|',
      'left-mid': '',
      mid: '',
      'mid-mid': '',
      middle: '|',
      right: '|',
      'right-mid': '',
      top: '',
      'top-left': '',
      'top-mid': '',
      'top-right': ''
    },
    style: {
      border: [],
      'padding-left': 1,
      'padding-right': 1
    }
  });
  table.push.apply(table, (0, _toConsumableArray3.default)(rows));
  return table.toString();
}

function formatDocString(arg) {
  return '"""\n' + arg.content + '\n"""';
}

function formatStep(_ref) {
  var colorFns = _ref.colorFns,
      isBeforeHook = _ref.isBeforeHook,
      keyword = _ref.keyword,
      keywordType = _ref.keywordType,
      pickleStep = _ref.pickleStep,
      snippetBuilder = _ref.snippetBuilder,
      testStep = _ref.testStep;
  var status = testStep.result.status;

  var colorFn = colorFns[status];

  var identifier = void 0;
  if (testStep.sourceLocation) {
    identifier = keyword + (pickleStep.text || '');
  } else {
    identifier = isBeforeHook ? 'Before' : 'After';
  }

  var text = colorFn(CHARACTERS[status] + ' ' + identifier);

  var actionLocation = testStep.actionLocation;

  if (actionLocation) {
    text += ' # ' + colorFns.location((0, _location_helpers.formatLocation)(actionLocation));
  }
  text += '\n';

  if (pickleStep) {
    var str = void 0;
    var iterator = (0, _step_arguments.buildStepArgumentIterator)({
      dataTable: function dataTable(arg) {
        return str = formatDataTable(arg);
      },
      docString: function docString(arg) {
        return str = formatDocString(arg);
      }
    });
    _lodash2.default.each(pickleStep.arguments, iterator);
    if (str) {
      text += (0, _indentString2.default)(colorFn(str) + '\n', 4);
    }
  }

  if (testStep.attachments) {
    testStep.attachments.forEach(function (_ref2) {
      var media = _ref2.media,
          data = _ref2.data;

      var message = media.type === 'text/plain' ? ': ' + data : '';
      text += (0, _indentString2.default)('Attachment (' + media.type + ')' + message + '\n', 4);
    });
  }

  var message = (0, _step_result_helpers.getStepMessage)({
    colorFns: colorFns,
    keywordType: keywordType,
    pickleStep: pickleStep,
    snippetBuilder: snippetBuilder,
    testStep: testStep
  });
  if (message) {
    text += (0, _indentString2.default)(message, 4) + '\n';
  }
  return text;
}

function isIssue(status) {
  return IS_ISSUE[status];
}

function formatIssue(_ref3) {
  var colorFns = _ref3.colorFns,
      gherkinDocument = _ref3.gherkinDocument,
      number = _ref3.number,
      pickle = _ref3.pickle,
      snippetBuilder = _ref3.snippetBuilder,
      testCase = _ref3.testCase;

  var prefix = number + ') ';
  var text = prefix;
  var scenarioLocation = (0, _location_helpers.formatLocation)(testCase.sourceLocation);
  text += 'Scenario: ' + pickle.name + ' # ' + colorFns.location(scenarioLocation) + '\n';
  var stepLineToKeywordMap = (0, _gherkin_document_parser.getStepLineToKeywordMap)(gherkinDocument);
  var stepLineToPickledStepMap = (0, _pickle_parser.getStepLineToPickledStepMap)(pickle);
  var isBeforeHook = true;
  var previousKeywordType = _keyword_type2.default.PRECONDITION;
  _lodash2.default.each(testCase.steps, function (testStep) {
    isBeforeHook = isBeforeHook && !testStep.sourceLocation;
    var keyword = void 0,
        keywordType = void 0,
        pickleStep = void 0;
    if (testStep.sourceLocation) {
      pickleStep = stepLineToPickledStepMap[testStep.sourceLocation.line];
      keyword = (0, _pickle_parser.getStepKeyword)({ pickleStep: pickleStep, stepLineToKeywordMap: stepLineToKeywordMap });
      keywordType = (0, _keyword_type.getStepKeywordType)({
        keyword: keyword,
        language: gherkinDocument.feature.language,
        previousKeywordType: previousKeywordType
      });
    }
    var formattedStep = formatStep({
      colorFns: colorFns,
      isBeforeHook: isBeforeHook,
      keyword: keyword,
      keywordType: keywordType,
      pickleStep: pickleStep,
      snippetBuilder: snippetBuilder,
      testStep: testStep
    });
    text += (0, _indentString2.default)(formattedStep, prefix.length);
    previousKeywordType = keywordType;
  });
  return text + '\n';
}

},{"../../status":360,"../../step_arguments":361,"./gherkin_document_parser":326,"./keyword_type":329,"./location_helpers":330,"./pickle_parser":331,"./step_result_helpers":332,"babel-runtime/helpers/defineProperty":25,"babel-runtime/helpers/toConsumableArray":30,"cli-table":41,"figures":208,"indent-string":233,"lodash":241}],329:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getStepKeywordType = getStepKeywordType;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _gherkin = require('gherkin');

var _gherkin2 = _interopRequireDefault(_gherkin);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var types = {
  EVENT: 'event',
  OUTCOME: 'outcome',
  PRECONDITION: 'precondition'
};

exports.default = types;
function getStepKeywordType(_ref) {
  var keyword = _ref.keyword,
      language = _ref.language,
      previousKeywordType = _ref.previousKeywordType;

  var dialect = _gherkin2.default.DIALECTS[language];
  var type = _lodash2.default.find(['given', 'when', 'then', 'and', 'but'], function (key) {
    return _lodash2.default.includes(dialect[key], keyword);
  });
  switch (type) {
    case 'when':
      return types.EVENT;
    case 'then':
      return types.OUTCOME;
    case 'and':
    case 'but':
      if (previousKeywordType) {
        return previousKeywordType;
      }
    // fallthrough
    default:
      return types.PRECONDITION;
  }
}

},{"gherkin":211,"lodash":241}],330:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.formatLocation = formatLocation;
function formatLocation(obj) {
  return obj.uri + ":" + obj.line;
}

},{}],331:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getScenarioDescription = getScenarioDescription;
exports.getStepKeyword = getStepKeyword;
exports.getStepLineToPickledStepMap = getStepLineToPickledStepMap;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function getScenarioDescription(_ref) {
  var pickle = _ref.pickle,
      scenarioLineToDescriptionMap = _ref.scenarioLineToDescriptionMap;

  return _lodash2.default.chain(pickle.locations).map(function (_ref2) {
    var line = _ref2.line;
    return scenarioLineToDescriptionMap[line];
  }).compact().first().value();
}

function getStepKeyword(_ref3) {
  var pickleStep = _ref3.pickleStep,
      stepLineToKeywordMap = _ref3.stepLineToKeywordMap;

  return _lodash2.default.chain(pickleStep.locations).map(function (_ref4) {
    var line = _ref4.line;
    return stepLineToKeywordMap[line];
  }).compact().first().value();
}

function getStepLineToPickledStepMap(pickle) {
  return _lodash2.default.chain(pickle.steps).map(function (step) {
    return [_lodash2.default.last(step.locations).line, step];
  }).fromPairs().value();
}

},{"lodash":241}],332:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getStepMessage = getStepMessage;

var _error_helpers = require('./error_helpers');

var _status = require('../../status');

var _status2 = _interopRequireDefault(_status);

var _indentString = require('indent-string');

var _indentString2 = _interopRequireDefault(_indentString);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function getAmbiguousStepResultMessage(_ref) {
  var colorFns = _ref.colorFns,
      testStep = _ref.testStep;

  return colorFns.ambiguous(testStep.result.exception);
}

function getFailedStepResultMessage(_ref2) {
  var colorFns = _ref2.colorFns,
      testStep = _ref2.testStep;

  return (0, _error_helpers.formatError)(testStep.result.exception, colorFns);
}

function getPendingStepResultMessage(_ref3) {
  var colorFns = _ref3.colorFns;

  return colorFns.pending('Pending');
}

function getStepMessage(_ref4) {
  var colorFns = _ref4.colorFns,
      keywordType = _ref4.keywordType,
      snippetBuilder = _ref4.snippetBuilder,
      testStep = _ref4.testStep,
      pickleStep = _ref4.pickleStep;

  switch (testStep.result.status) {
    case _status2.default.AMBIGUOUS:
      return getAmbiguousStepResultMessage({ colorFns: colorFns, testStep: testStep });
    case _status2.default.FAILED:
      return getFailedStepResultMessage({ colorFns: colorFns, testStep: testStep });
    case _status2.default.UNDEFINED:
      return getUndefinedStepResultMessage({
        colorFns: colorFns,
        keywordType: keywordType,
        snippetBuilder: snippetBuilder,
        pickleStep: pickleStep
      });
    case _status2.default.PENDING:
      return getPendingStepResultMessage({ colorFns: colorFns });
  }
}

function getUndefinedStepResultMessage(_ref5) {
  var colorFns = _ref5.colorFns,
      keywordType = _ref5.keywordType,
      snippetBuilder = _ref5.snippetBuilder,
      pickleStep = _ref5.pickleStep;

  var snippet = snippetBuilder.build({ keywordType: keywordType, pickleStep: pickleStep });
  var message = '' + ('Undefined. Implement with the following snippet:' + '\n\n') + (0, _indentString2.default)(snippet, 2) + '\n';
  return colorFns.undefined(message);
}

},{"../../status":360,"./error_helpers":324,"indent-string":233}],333:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.formatSummary = formatSummary;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _duration = require('duration');

var _duration2 = _interopRequireDefault(_duration);

var _status = require('../../status');

var _status2 = _interopRequireDefault(_status);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var STATUS_REPORT_ORDER = [_status2.default.FAILED, _status2.default.AMBIGUOUS, _status2.default.UNDEFINED, _status2.default.PENDING, _status2.default.SKIPPED, _status2.default.PASSED];

function formatSummary(_ref) {
  var colorFns = _ref.colorFns,
      testCaseMap = _ref.testCaseMap,
      testRun = _ref.testRun;

  var testCaseResults = [];
  var testStepResults = [];
  _lodash2.default.each(testCaseMap, function (_ref2) {
    var result = _ref2.result,
        steps = _ref2.steps;

    testCaseResults.push(result);
    _lodash2.default.each(steps, function (testStep) {
      if (testStep.sourceLocation) {
        testStepResults.push(testStep.result);
      }
    });
  });
  var scenarioSummary = getCountSummary({
    colorFns: colorFns,
    objects: testCaseResults,
    type: 'scenario'
  });
  var stepSummary = getCountSummary({
    colorFns: colorFns,
    objects: testStepResults,
    type: 'step'
  });
  var durationSummary = getDuration(testRun.result.duration);
  return [scenarioSummary, stepSummary, durationSummary].join('\n');
}

function getCountSummary(_ref3) {
  var colorFns = _ref3.colorFns,
      objects = _ref3.objects,
      type = _ref3.type;

  var counts = _lodash2.default.chain(objects).groupBy('status').mapValues('length').value();
  var total = _lodash2.default.reduce(counts, function (memo, value) {
    return memo + value;
  }) || 0;
  var text = total + ' ' + type + (total === 1 ? '' : 's');
  if (total > 0) {
    var details = [];
    STATUS_REPORT_ORDER.forEach(function (status) {
      if (counts[status] > 0) {
        details.push(colorFns[status](counts[status] + ' ' + status));
      }
    });
    text += ' (' + details.join(', ') + ')';
  }
  return text;
}

function getDuration(milliseconds) {
  var start = new Date(0);
  var end = new Date(milliseconds);
  var duration = new _duration2.default(start, end);

  return duration.minutes + 'm' + duration.toString('%S') + '.' + duration.toString('%L') + 's' + '\n';
}

},{"../../status":360,"duration":170,"lodash":241}],334:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getUsage = getUsage;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _location_helpers = require('../location_helpers');

var _pickle_parser = require('../pickle_parser');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function buildEmptyMapping(stepDefinitions) {
  var mapping = {};
  stepDefinitions.forEach(function (stepDefinition) {
    var location = (0, _location_helpers.formatLocation)(stepDefinition);
    mapping[location] = {
      line: stepDefinition.line,
      pattern: stepDefinition.pattern,
      matches: [],
      uri: stepDefinition.uri
    };
  });
  return mapping;
}

function buildMapping(_ref) {
  var stepDefinitions = _ref.stepDefinitions,
      eventDataCollector = _ref.eventDataCollector;

  var mapping = buildEmptyMapping(stepDefinitions);
  _lodash2.default.each(eventDataCollector.testCaseMap, function (testCase) {
    var _eventDataCollector$g = eventDataCollector.getTestCaseData(testCase.sourceLocation),
        pickle = _eventDataCollector$g.pickle;

    var stepLineToPickledStepMap = (0, _pickle_parser.getStepLineToPickledStepMap)(pickle);
    testCase.steps.forEach(function (testStep) {
      var actionLocation = testStep.actionLocation,
          sourceLocation = testStep.sourceLocation,
          duration = testStep.result.duration;

      if (actionLocation && sourceLocation) {
        var location = (0, _location_helpers.formatLocation)(actionLocation);
        var match = {
          line: sourceLocation.line,
          text: stepLineToPickledStepMap[sourceLocation.line].text,
          uri: sourceLocation.uri
        };
        if (isFinite(duration)) {
          match.duration = duration;
        }
        if (mapping[location]) {
          mapping[location].matches.push(match);
        }
      }
    });
  });
  return mapping;
}

function invertNumber(key) {
  return function (obj) {
    var value = obj[key];
    if (isFinite(value)) {
      return -1 * value;
    }
    return 1;
  };
}

function buildResult(mapping) {
  return _lodash2.default.chain(mapping).map(function (_ref2) {
    var line = _ref2.line,
        matches = _ref2.matches,
        pattern = _ref2.pattern,
        uri = _ref2.uri;

    var sortedMatches = _lodash2.default.sortBy(matches, [invertNumber('duration'), 'text']);
    var result = { line: line, matches: sortedMatches, pattern: pattern, uri: uri };
    var meanDuration = _lodash2.default.meanBy(matches, 'duration');
    if (isFinite(meanDuration)) {
      result.meanDuration = meanDuration;
    }
    return result;
  }).sortBy(invertNumber('meanDuration')).value();
}

function getUsage(_ref3) {
  var stepDefinitions = _ref3.stepDefinitions,
      eventDataCollector = _ref3.eventDataCollector;

  var mapping = buildMapping({ stepDefinitions: stepDefinitions, eventDataCollector: eventDataCollector });
  return buildResult(mapping);
}

},{"../location_helpers":330,"../pickle_parser":331,"lodash":241}],335:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var Formatter = function Formatter(options) {
  (0, _classCallCheck3.default)(this, Formatter);

  _lodash2.default.assign(this, _lodash2.default.pick(options, ['colorFns', 'cwd', 'eventDataCollector', 'log', 'snippetBuilder', 'stream', 'supportCodeLibrary']));
};

exports.default = Formatter;

},{"babel-runtime/helpers/classCallCheck":23,"lodash":241}],336:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _2 = require('./');

var _3 = _interopRequireDefault(_2);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

var _helpers = require('./helpers');

var _step_arguments = require('../step_arguments');

var _assertionErrorFormatter = require('assertion-error-formatter');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var getStepLineToKeywordMap = _helpers.GherkinDocumentParser.getStepLineToKeywordMap,
    getScenarioLineToDescriptionMap = _helpers.GherkinDocumentParser.getScenarioLineToDescriptionMap;
var getScenarioDescription = _helpers.PickleParser.getScenarioDescription,
    getStepLineToPickledStepMap = _helpers.PickleParser.getStepLineToPickledStepMap,
    getStepKeyword = _helpers.PickleParser.getStepKeyword;

var JsonFormatter = function (_Formatter) {
  (0, _inherits3.default)(JsonFormatter, _Formatter);

  function JsonFormatter(options) {
    (0, _classCallCheck3.default)(this, JsonFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (JsonFormatter.__proto__ || Object.getPrototypeOf(JsonFormatter)).call(this, options));

    options.eventBroadcaster.on('test-run-finished', _this.onTestRunFinished.bind(_this));
    return _this;
  }

  (0, _createClass3.default)(JsonFormatter, [{
    key: 'convertNameToId',
    value: function convertNameToId(obj) {
      return obj.name.replace(/ /g, '-').toLowerCase();
    }
  }, {
    key: 'formatDataTable',
    value: function formatDataTable(dataTable) {
      return {
        rows: dataTable.rows.map(function (row) {
          return { cells: _lodash2.default.map(row.cells, 'value') };
        })
      };
    }
  }, {
    key: 'formatDocString',
    value: function formatDocString(docString) {
      return {
        content: docString.content,
        line: docString.location.line
      };
    }
  }, {
    key: 'formatStepArguments',
    value: function formatStepArguments(stepArguments) {
      var iterator = (0, _step_arguments.buildStepArgumentIterator)({
        dataTable: this.formatDataTable.bind(this),
        docString: this.formatDocString.bind(this)
      });
      return _lodash2.default.map(stepArguments, iterator);
    }
  }, {
    key: 'onTestRunFinished',
    value: function onTestRunFinished() {
      var _this2 = this;

      var groupedTestCases = {};
      _lodash2.default.each(this.eventDataCollector.testCaseMap, function (testCase) {
        var uri = testCase.sourceLocation.uri;

        if (!groupedTestCases[uri]) {
          groupedTestCases[uri] = [];
        }
        groupedTestCases[uri].push(testCase);
      });
      var features = _lodash2.default.map(groupedTestCases, function (group, uri) {
        var gherkinDocument = _this2.eventDataCollector.gherkinDocumentMap[uri];
        var featureData = _this2.getFeatureData(gherkinDocument.feature, uri);
        var stepLineToKeywordMap = getStepLineToKeywordMap(gherkinDocument);
        var scenarioLineToDescriptionMap = getScenarioLineToDescriptionMap(gherkinDocument);
        featureData.elements = group.map(function (testCase) {
          var _eventDataCollector$g = _this2.eventDataCollector.getTestCaseData(testCase.sourceLocation),
              pickle = _eventDataCollector$g.pickle;

          var scenarioData = _this2.getScenarioData({
            featureId: featureData.id,
            pickle: pickle,
            scenarioLineToDescriptionMap: scenarioLineToDescriptionMap
          });
          var stepLineToPickledStepMap = getStepLineToPickledStepMap(pickle);
          var isBeforeHook = true;
          scenarioData.steps = testCase.steps.map(function (testStep) {
            isBeforeHook = isBeforeHook && !testStep.sourceLocation;
            return _this2.getStepData({
              isBeforeHook: isBeforeHook,
              stepLineToKeywordMap: stepLineToKeywordMap,
              stepLineToPickledStepMap: stepLineToPickledStepMap,
              testStep: testStep
            });
          });
          return scenarioData;
        });
        return featureData;
      });
      this.log(JSON.stringify(features, null, 2));
    }
  }, {
    key: 'getFeatureData',
    value: function getFeatureData(feature, uri) {
      return {
        description: feature.description,
        keyword: feature.keyword,
        name: feature.name,
        line: feature.location.line,
        id: this.convertNameToId(feature),
        tags: this.getTags(feature),
        uri: uri
      };
    }
  }, {
    key: 'getScenarioData',
    value: function getScenarioData(_ref) {
      var featureId = _ref.featureId,
          pickle = _ref.pickle,
          scenarioLineToDescriptionMap = _ref.scenarioLineToDescriptionMap;

      var description = getScenarioDescription({
        pickle: pickle,
        scenarioLineToDescriptionMap: scenarioLineToDescriptionMap
      });
      return {
        description: description,
        id: featureId + ';' + this.convertNameToId(pickle),
        keyword: 'Scenario',
        line: pickle.locations[0].line,
        name: pickle.name,
        tags: this.getTags(pickle),
        type: 'scenario'
      };
    }
  }, {
    key: 'getStepData',
    value: function getStepData(_ref2) {
      var isBeforeHook = _ref2.isBeforeHook,
          stepLineToKeywordMap = _ref2.stepLineToKeywordMap,
          stepLineToPickledStepMap = _ref2.stepLineToPickledStepMap,
          testStep = _ref2.testStep;

      var data = {};
      if (testStep.sourceLocation) {
        var line = testStep.sourceLocation.line;

        var pickleStep = stepLineToPickledStepMap[line];
        data.arguments = this.formatStepArguments(pickleStep.arguments);
        data.keyword = getStepKeyword({ pickleStep: pickleStep, stepLineToKeywordMap: stepLineToKeywordMap });
        data.line = line;
        data.name = pickleStep.text;
      } else {
        data.keyword = isBeforeHook ? 'Before' : 'After';
        data.hidden = true;
      }
      if (testStep.actionLocation) {
        data.match = { location: (0, _helpers.formatLocation)(testStep.actionLocation) };
      }
      if (testStep.result) {
        var _testStep$result = testStep.result,
            exception = _testStep$result.exception,
            status = _testStep$result.status;

        data.result = { status: status };
        if (testStep.result.duration) {
          data.result.duration = testStep.result.duration * 1000000;
        }
        if (status === _status2.default.FAILED && exception) {
          data.result.error_message = (0, _assertionErrorFormatter.format)(exception);
        }
      }
      if (_lodash2.default.size(testStep.attachments) > 0) {
        data.embeddings = testStep.attachments.map(function (attachment) {
          return {
            data: attachment.data,
            mime_type: attachment.media.type
          };
        });
      }
      return data;
    }
  }, {
    key: 'getTags',
    value: function getTags(obj) {
      return _lodash2.default.map(obj.tags, function (tagData) {
        return {
          name: tagData.name,
          line: tagData.location.line
        };
      });
    }
  }]);
  return JsonFormatter;
}(_3.default);

exports.default = JsonFormatter;

},{"../status":360,"../step_arguments":361,"./":335,"./helpers":327,"assertion-error-formatter":13,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28,"lodash":241}],337:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _helpers = require('./helpers');

var _ = require('./');

var _2 = _interopRequireDefault(_);

var _progress = require('progress');

var _progress2 = _interopRequireDefault(_progress);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Inspired by https://github.com/thekompanee/fuubar and https://github.com/martinciu/fuubar-cucumber
var ProgressBarFormatter = function (_Formatter) {
  (0, _inherits3.default)(ProgressBarFormatter, _Formatter);

  function ProgressBarFormatter(options) {
    (0, _classCallCheck3.default)(this, ProgressBarFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (ProgressBarFormatter.__proto__ || Object.getPrototypeOf(ProgressBarFormatter)).call(this, options));

    options.eventBroadcaster.on('pickle-accepted', _this.incrementStepCount.bind(_this)).once('test-case-started', _this.initializeProgressBar.bind(_this)).on('test-step-finished', _this.logProgress.bind(_this)).on('test-case-finished', _this.logErrorIfNeeded.bind(_this)).on('test-run-finished', _this.logSummary.bind(_this));
    _this.numberOfSteps = 0;
    _this.issueCount = 0;
    return _this;
  }

  (0, _createClass3.default)(ProgressBarFormatter, [{
    key: 'incrementStepCount',
    value: function incrementStepCount(_ref) {
      var pickle = _ref.pickle;

      this.numberOfSteps += pickle.steps.length;
    }
  }, {
    key: 'initializeProgressBar',
    value: function initializeProgressBar() {
      this.progressBar = new _progress2.default(':current/:total steps [:bar] ', {
        clear: true,
        incomplete: ' ',
        stream: this.stream,
        total: this.numberOfSteps,
        width: this.stream.columns || 80
      });
    }
  }, {
    key: 'logProgress',
    value: function logProgress(_ref2) {
      var index = _ref2.index,
          sourceLocation = _ref2.testCase.sourceLocation;

      var _eventDataCollector$g = this.eventDataCollector.getTestCaseData(sourceLocation),
          testCase = _eventDataCollector$g.testCase;

      if (testCase.steps[index].sourceLocation) {
        this.progressBar.tick();
      }
    }
  }, {
    key: 'logErrorIfNeeded',
    value: function logErrorIfNeeded(_ref3) {
      var sourceLocation = _ref3.sourceLocation,
          result = _ref3.result;

      if ((0, _helpers.isIssue)(result.status)) {
        this.issueCount += 1;

        var _eventDataCollector$g2 = this.eventDataCollector.getTestCaseData(sourceLocation),
            gherkinDocument = _eventDataCollector$g2.gherkinDocument,
            pickle = _eventDataCollector$g2.pickle,
            testCase = _eventDataCollector$g2.testCase;

        this.progressBar.interrupt((0, _helpers.formatIssue)({
          colorFns: this.colorFns,
          gherkinDocument: gherkinDocument,
          number: this.issueCount,
          pickle: pickle,
          snippetBuilder: this.snippetBuilder,
          testCase: testCase
        }));
      }
    }
  }, {
    key: 'logSummary',
    value: function logSummary(testRun) {
      this.log((0, _helpers.formatSummary)({
        colorFns: this.colorFns,
        testCaseMap: this.eventDataCollector.testCaseMap,
        testRun: testRun
      }));
    }
  }]);
  return ProgressBarFormatter;
}(_2.default);

exports.default = ProgressBarFormatter;

},{"./":335,"./helpers":327,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28,"progress":256}],338:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _defineProperty2 = require('babel-runtime/helpers/defineProperty');

var _defineProperty3 = _interopRequireDefault(_defineProperty2);

var _STATUS_CHARACTER_MAP;

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

var _summary_formatter = require('./summary_formatter');

var _summary_formatter2 = _interopRequireDefault(_summary_formatter);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var STATUS_CHARACTER_MAPPING = (_STATUS_CHARACTER_MAP = {}, (0, _defineProperty3.default)(_STATUS_CHARACTER_MAP, _status2.default.AMBIGUOUS, 'A'), (0, _defineProperty3.default)(_STATUS_CHARACTER_MAP, _status2.default.FAILED, 'F'), (0, _defineProperty3.default)(_STATUS_CHARACTER_MAP, _status2.default.PASSED, '.'), (0, _defineProperty3.default)(_STATUS_CHARACTER_MAP, _status2.default.PENDING, 'P'), (0, _defineProperty3.default)(_STATUS_CHARACTER_MAP, _status2.default.SKIPPED, '-'), (0, _defineProperty3.default)(_STATUS_CHARACTER_MAP, _status2.default.UNDEFINED, 'U'), _STATUS_CHARACTER_MAP);

var ProgressFormatter = function (_SummaryFormatter) {
  (0, _inherits3.default)(ProgressFormatter, _SummaryFormatter);

  function ProgressFormatter(options) {
    (0, _classCallCheck3.default)(this, ProgressFormatter);

    options.eventBroadcaster.on('test-run-finished', function () {
      _this.log('\n\n');
    });

    var _this = (0, _possibleConstructorReturn3.default)(this, (ProgressFormatter.__proto__ || Object.getPrototypeOf(ProgressFormatter)).call(this, options));

    options.eventBroadcaster.on('test-step-finished', _this.logProgress.bind(_this));
    return _this;
  }

  (0, _createClass3.default)(ProgressFormatter, [{
    key: 'logProgress',
    value: function logProgress(_ref) {
      var result = _ref.result;
      var status = result.status;

      var character = this.colorFns[status](STATUS_CHARACTER_MAPPING[status]);
      this.log(character);
    }
  }]);
  return ProgressFormatter;
}(_summary_formatter2.default);

exports.default = ProgressFormatter;

},{"../status":360,"./summary_formatter":343,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/defineProperty":25,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28}],339:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _2 = require('./');

var _3 = _interopRequireDefault(_2);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var DEFAULT_SEPARATOR = '\n';

var RerunFormatter = function (_Formatter) {
  (0, _inherits3.default)(RerunFormatter, _Formatter);

  function RerunFormatter(options) {
    (0, _classCallCheck3.default)(this, RerunFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (RerunFormatter.__proto__ || Object.getPrototypeOf(RerunFormatter)).call(this, options));

    options.eventBroadcaster.on('test-case-finished', _this.storeFailedTestCases.bind(_this)).on('test-run-finished', _this.logFailedTestCases.bind(_this));
    _this.mapping = {};
    _this.separator = _lodash2.default.get(options, 'rerun.separator', DEFAULT_SEPARATOR);
    return _this;
  }

  (0, _createClass3.default)(RerunFormatter, [{
    key: 'storeFailedTestCases',
    value: function storeFailedTestCases(_ref) {
      var _ref$sourceLocation = _ref.sourceLocation,
          line = _ref$sourceLocation.line,
          uri = _ref$sourceLocation.uri,
          status = _ref.result.status;

      if (status !== _status2.default.PASSED) {
        if (!this.mapping[uri]) {
          this.mapping[uri] = [];
        }
        this.mapping[uri].push(line);
      }
    }
  }, {
    key: 'logFailedTestCases',
    value: function logFailedTestCases() {
      var text = _lodash2.default.chain(this.mapping).map(function (lines, uri) {
        return uri + ':' + lines.join(':');
      }).join(this.separator).value();
      this.log(text);
    }
  }]);
  return RerunFormatter;
}(_3.default);

exports.default = RerunFormatter;

},{"../status":360,"./":335,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28,"lodash":241}],340:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _ = require('./');

var _2 = _interopRequireDefault(_);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

var _helpers = require('./helpers');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var SnippetsFormatter = function (_Formatter) {
  (0, _inherits3.default)(SnippetsFormatter, _Formatter);

  function SnippetsFormatter(options) {
    (0, _classCallCheck3.default)(this, SnippetsFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (SnippetsFormatter.__proto__ || Object.getPrototypeOf(SnippetsFormatter)).call(this, options));

    options.eventBroadcaster.on('test-step-finished', _this.logUndefinedTestStepSnippet.bind(_this));
    return _this;
  }

  (0, _createClass3.default)(SnippetsFormatter, [{
    key: 'logUndefinedTestStepSnippet',
    value: function logUndefinedTestStepSnippet(_ref) {
      var sourceLocation = _ref.testCase.sourceLocation,
          index = _ref.index,
          result = _ref.result;

      if (result.status === _status2.default.UNDEFINED) {
        var _eventDataCollector$g = this.eventDataCollector.getTestCaseData(sourceLocation),
            gherkinDocument = _eventDataCollector$g.gherkinDocument,
            testCase = _eventDataCollector$g.testCase;

        var _eventDataCollector$g2 = this.eventDataCollector.getTestStepData({ testCase: testCase, index: index }),
            pickleStep = _eventDataCollector$g2.pickleStep,
            gherkinKeyword = _eventDataCollector$g2.gherkinKeyword;

        var previousKeywordType = this.getPreviousKeywordType({
          gherkinDocument: gherkinDocument,
          testCase: testCase,
          index: index
        });
        var keywordType = (0, _helpers.getStepKeywordType)({
          keyword: gherkinKeyword,
          language: gherkinDocument.feature.language,
          previousKeywordType: previousKeywordType
        });
        var snippet = this.snippetBuilder.build({ keywordType: keywordType, pickleStep: pickleStep });
        this.log(snippet + '\n\n');
      }
    }
  }, {
    key: 'getPreviousKeywordType',
    value: function getPreviousKeywordType(_ref2) {
      var gherkinDocument = _ref2.gherkinDocument,
          testCase = _ref2.testCase,
          index = _ref2.index;

      var previousKeywordType = _helpers.KeywordType.PRECONDITION;
      for (var i = 0; i < index; i += 1) {
        var _eventDataCollector$g3 = this.eventDataCollector.getTestStepData({
          testCase: testCase,
          index: i
        }),
            gherkinKeyword = _eventDataCollector$g3.gherkinKeyword;

        previousKeywordType = (0, _helpers.getStepKeywordType)({
          keyword: gherkinKeyword,
          language: gherkinDocument.feature.language,
          previousKeywordType: previousKeywordType
        });
      }
      return previousKeywordType;
    }
  }]);
  return SnippetsFormatter;
}(_2.default);

exports.default = SnippetsFormatter;

},{"../status":360,"./":335,"./helpers":327,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28}],341:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _cucumberExpressions = require('cucumber-expressions');

var _helpers = require('../helpers');

var _step_arguments = require('../../step_arguments');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var StepDefinitionSnippetBuilder = function () {
  function StepDefinitionSnippetBuilder(_ref) {
    var snippetSyntax = _ref.snippetSyntax,
        parameterTypeRegistry = _ref.parameterTypeRegistry;
    (0, _classCallCheck3.default)(this, StepDefinitionSnippetBuilder);

    this.snippetSyntax = snippetSyntax;
    this.cucumberExpressionGenerator = new _cucumberExpressions.CucumberExpressionGenerator(parameterTypeRegistry);
  }

  (0, _createClass3.default)(StepDefinitionSnippetBuilder, [{
    key: 'build',
    value: function build(_ref2) {
      var keywordType = _ref2.keywordType,
          pickleStep = _ref2.pickleStep;

      var comment = 'Write code here that turns the phrase above into concrete actions';
      var functionName = this.getFunctionName(keywordType);
      var generatedExpressions = this.cucumberExpressionGenerator.generateExpressions(pickleStep.text, true);
      var stepParameterNames = this.getStepParameterNames(pickleStep);
      return this.snippetSyntax.build({
        comment: comment,
        functionName: functionName,
        generatedExpressions: generatedExpressions,
        stepParameterNames: stepParameterNames
      });
    }
  }, {
    key: 'getFunctionName',
    value: function getFunctionName(keywordType) {
      switch (keywordType) {
        case _helpers.KeywordType.EVENT:
          return 'When';
        case _helpers.KeywordType.OUTCOME:
          return 'Then';
        case _helpers.KeywordType.PRECONDITION:
          return 'Given';
      }
    }
  }, {
    key: 'getStepParameterNames',
    value: function getStepParameterNames(step) {
      var iterator = (0, _step_arguments.buildStepArgumentIterator)({
        dataTable: function dataTable() {
          return 'dataTable';
        },
        docString: function docString() {
          return 'docString';
        }
      });
      return step.arguments.map(iterator);
    }
  }]);
  return StepDefinitionSnippetBuilder;
}();

exports.default = StepDefinitionSnippetBuilder;

},{"../../step_arguments":361,"../helpers":327,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"cucumber-expressions":161}],342:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var CALLBACK_NAME = 'callback';

var JavaScriptSnippetSyntax = function () {
  function JavaScriptSnippetSyntax(snippetInterface) {
    (0, _classCallCheck3.default)(this, JavaScriptSnippetSyntax);

    this.snippetInterface = snippetInterface;
  }

  (0, _createClass3.default)(JavaScriptSnippetSyntax, [{
    key: 'build',
    value: function build(_ref) {
      var _this = this;

      var comment = _ref.comment,
          generatedExpressions = _ref.generatedExpressions,
          functionName = _ref.functionName,
          stepParameterNames = _ref.stepParameterNames;

      var functionKeyword = 'function ';
      if (this.snippetInterface === 'async-await') {
        functionKeyword = 'async ' + functionKeyword;
      } else if (this.snippetInterface === 'generator') {
        functionKeyword += '*';
      }

      var implementation = void 0;
      if (this.snippetInterface === 'callback') {
        implementation = CALLBACK_NAME + '(null, \'pending\');';
      } else {
        implementation = "return 'pending';";
      }

      var definitionChoices = generatedExpressions.map(function (generatedExpression, index) {
        var prefix = index === 0 ? '' : '// ';
        var allParameterNames = generatedExpression.parameterNames.concat(stepParameterNames);
        if (_this.snippetInterface === 'callback') {
          allParameterNames.push(CALLBACK_NAME);
        }
        return prefix + functionName + '(\'' + generatedExpression.source.replace(/'/g, "\\'") + '\', ' + functionKeyword + '(' + allParameterNames.join(', ') + ') {\n';
      });

      return definitionChoices.join('') + '  // ' + comment + '\n' + ('  ' + implementation + '\n') + '});';
    }
  }]);
  return JavaScriptSnippetSyntax;
}();

exports.default = JavaScriptSnippetSyntax;

},{"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24}],343:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _helpers = require('./helpers');

var _2 = require('./');

var _3 = _interopRequireDefault(_2);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var SummaryFormatter = function (_Formatter) {
  (0, _inherits3.default)(SummaryFormatter, _Formatter);

  function SummaryFormatter(options) {
    (0, _classCallCheck3.default)(this, SummaryFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (SummaryFormatter.__proto__ || Object.getPrototypeOf(SummaryFormatter)).call(this, options));

    options.eventBroadcaster.on('test-run-finished', _this.logSummary.bind(_this));
    return _this;
  }

  (0, _createClass3.default)(SummaryFormatter, [{
    key: 'isTestCaseFailure',
    value: function isTestCaseFailure(testCase) {
      return _lodash2.default.includes([_status2.default.AMBIGUOUS, _status2.default.FAILED], testCase.result.status);
    }
  }, {
    key: 'isTestCaseWarning',
    value: function isTestCaseWarning(testCase) {
      return _lodash2.default.includes([_status2.default.PENDING, _status2.default.UNDEFINED], testCase.result.status);
    }
  }, {
    key: 'logSummary',
    value: function logSummary(testRun) {
      var _this2 = this;

      var failures = [];
      var warnings = [];
      _lodash2.default.each(this.eventDataCollector.testCaseMap, function (testCase) {
        if (_this2.isTestCaseFailure(testCase)) {
          failures.push(testCase);
        } else if (_this2.isTestCaseWarning(testCase)) {
          warnings.push(testCase);
        }
      });
      if (failures.length > 0) {
        this.logIssues({ issues: failures, title: 'Failures' });
      }
      if (warnings.length > 0) {
        this.logIssues({ issues: warnings, title: 'Warnings' });
      }
      this.log((0, _helpers.formatSummary)({
        colorFns: this.colorFns,
        testCaseMap: this.eventDataCollector.testCaseMap,
        testRun: testRun
      }));
    }
  }, {
    key: 'logIssues',
    value: function logIssues(_ref) {
      var _this3 = this;

      var issues = _ref.issues,
          title = _ref.title;

      this.log(title + ':\n\n');
      issues.forEach(function (testCase, index) {
        var _eventDataCollector$g = _this3.eventDataCollector.getTestCaseData(testCase.sourceLocation),
            gherkinDocument = _eventDataCollector$g.gherkinDocument,
            pickle = _eventDataCollector$g.pickle;

        _this3.log((0, _helpers.formatIssue)({
          colorFns: _this3.colorFns,
          gherkinDocument: gherkinDocument,
          number: index + 1,
          pickle: pickle,
          snippetBuilder: _this3.snippetBuilder,
          testCase: testCase
        }));
      });
    }
  }]);
  return SummaryFormatter;
}(_3.default);

exports.default = SummaryFormatter;

},{"../status":360,"./":335,"./helpers":327,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28,"lodash":241}],344:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _helpers = require('./helpers');

var _2 = require('./');

var _3 = _interopRequireDefault(_2);

var _cliTable = require('cli-table');

var _cliTable2 = _interopRequireDefault(_cliTable);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var UsageFormatter = function (_Formatter) {
  (0, _inherits3.default)(UsageFormatter, _Formatter);

  function UsageFormatter(options) {
    (0, _classCallCheck3.default)(this, UsageFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (UsageFormatter.__proto__ || Object.getPrototypeOf(UsageFormatter)).call(this, options));

    options.eventBroadcaster.on('test-run-finished', _this.logUsage.bind(_this));
    return _this;
  }

  (0, _createClass3.default)(UsageFormatter, [{
    key: 'logUsage',
    value: function logUsage() {
      var usage = (0, _helpers.getUsage)({
        stepDefinitions: this.supportCodeLibrary.stepDefinitions,
        eventDataCollector: this.eventDataCollector
      });
      if (usage.length === 0) {
        this.log('No step definitions');
        return;
      }
      var table = new _cliTable2.default({
        head: ['Pattern / Text', 'Duration', 'Location'],
        style: {
          border: [],
          head: []
        }
      });
      usage.forEach(function (_ref) {
        var line = _ref.line,
            matches = _ref.matches,
            meanDuration = _ref.meanDuration,
            pattern = _ref.pattern,
            uri = _ref.uri;

        var col1 = [pattern.toString()];
        var col2 = [];
        if (matches.length > 0) {
          if (isFinite(meanDuration)) {
            col2.push(parseFloat(meanDuration.toFixed(2)) + 'ms');
          } else {
            col2.push('-');
          }
        } else {
          col2.push('UNUSED');
        }
        var col3 = [(0, _helpers.formatLocation)({ line: line, uri: uri })];
        _lodash2.default.take(matches, 5).forEach(function (match) {
          col1.push('  ' + match.text);
          if (isFinite(match.duration)) {
            col2.push(match.duration + 'ms');
          } else {
            col2.push('-');
          }
          col3.push((0, _helpers.formatLocation)(match));
        });
        if (matches.length > 5) {
          col1.push('  ' + (matches.length - 5) + ' more');
        }
        table.push([col1.join('\n'), col2.join('\n'), col3.join('\n')]);
      });
      this.log(table.toString() + '\n');
    }
  }]);
  return UsageFormatter;
}(_3.default);

exports.default = UsageFormatter;

},{"./":335,"./helpers":327,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28,"cli-table":41,"lodash":241}],345:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _helpers = require('./helpers');

var _ = require('./');

var _2 = _interopRequireDefault(_);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var UsageJsonFormatter = function (_Formatter) {
  (0, _inherits3.default)(UsageJsonFormatter, _Formatter);

  function UsageJsonFormatter(options) {
    (0, _classCallCheck3.default)(this, UsageJsonFormatter);

    var _this = (0, _possibleConstructorReturn3.default)(this, (UsageJsonFormatter.__proto__ || Object.getPrototypeOf(UsageJsonFormatter)).call(this, options));

    options.eventBroadcaster.on('test-run-finished', _this.logUsage.bind(_this));
    return _this;
  }

  (0, _createClass3.default)(UsageJsonFormatter, [{
    key: 'logUsage',
    value: function logUsage() {
      var usage = (0, _helpers.getUsage)({
        stepDefinitions: this.supportCodeLibrary.stepDefinitions,
        eventDataCollector: this.eventDataCollector
      });
      this.log(JSON.stringify(usage, null, 2));
    }
  }]);
  return UsageJsonFormatter;
}(_2.default);

exports.default = UsageJsonFormatter;

},{"./":335,"./helpers":327,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28}],346:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.When = exports.Then = exports.setWorldConstructor = exports.setDefinitionFunctionWrapper = exports.setDefaultTimeout = exports.Given = exports.defineSupportCode = exports.defineStep = exports.defineParameterType = exports.BeforeAll = exports.Before = exports.AfterAll = exports.After = exports.formatterHelpers = exports.UsageJsonFormatter = exports.UsageFormatter = exports.SummaryFormatter = exports.SnippetsFormatter = exports.RerunFormatter = exports.ProgressFormatter = exports.JsonFormatter = exports.FormatterBuilder = exports.Formatter = exports.supportCodeLibraryBuilder = exports.Status = exports.Runtime = exports.PickleFilter = exports.orderTestCases = exports.getTestCasesFromFilesystem = exports.getTestCases = exports.Cli = undefined;

var _cli = require('./cli');

Object.defineProperty(exports, 'Cli', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_cli).default;
  }
});

var _helpers = require('./cli/helpers');

Object.defineProperty(exports, 'getTestCases', {
  enumerable: true,
  get: function get() {
    return _helpers.getTestCases;
  }
});
Object.defineProperty(exports, 'getTestCasesFromFilesystem', {
  enumerable: true,
  get: function get() {
    return _helpers.getTestCasesFromFilesystem;
  }
});
Object.defineProperty(exports, 'orderTestCases', {
  enumerable: true,
  get: function get() {
    return _helpers.orderTestCases;
  }
});

var _pickle_filter = require('./pickle_filter');

Object.defineProperty(exports, 'PickleFilter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_pickle_filter).default;
  }
});

var _runtime = require('./runtime');

Object.defineProperty(exports, 'Runtime', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_runtime).default;
  }
});

var _status = require('./status');

Object.defineProperty(exports, 'Status', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_status).default;
  }
});

var _support_code_library_builder = require('./support_code_library_builder');

Object.defineProperty(exports, 'supportCodeLibraryBuilder', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_support_code_library_builder).default;
  }
});

var _formatter = require('./formatter');

Object.defineProperty(exports, 'Formatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_formatter).default;
  }
});

var _builder = require('./formatter/builder');

Object.defineProperty(exports, 'FormatterBuilder', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_builder).default;
  }
});

var _json_formatter = require('./formatter/json_formatter');

Object.defineProperty(exports, 'JsonFormatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_json_formatter).default;
  }
});

var _progress_formatter = require('./formatter/progress_formatter');

Object.defineProperty(exports, 'ProgressFormatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_progress_formatter).default;
  }
});

var _rerun_formatter = require('./formatter/rerun_formatter');

Object.defineProperty(exports, 'RerunFormatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_rerun_formatter).default;
  }
});

var _snippets_formatter = require('./formatter/snippets_formatter');

Object.defineProperty(exports, 'SnippetsFormatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_snippets_formatter).default;
  }
});

var _summary_formatter = require('./formatter/summary_formatter');

Object.defineProperty(exports, 'SummaryFormatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_summary_formatter).default;
  }
});

var _usage_formatter = require('./formatter/usage_formatter');

Object.defineProperty(exports, 'UsageFormatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_usage_formatter).default;
  }
});

var _usage_json_formatter = require('./formatter/usage_json_formatter');

Object.defineProperty(exports, 'UsageJsonFormatter', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_usage_json_formatter).default;
  }
});

var _helpers2 = require('./formatter/helpers');

var formatterHelpers = _interopRequireWildcard(_helpers2);

var _support_code_library_builder2 = _interopRequireDefault(_support_code_library_builder);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.formatterHelpers = formatterHelpers;

// Support Code Fuctions

var methods = _support_code_library_builder2.default.methods;
var After = exports.After = methods.After;
var AfterAll = exports.AfterAll = methods.AfterAll;
var Before = exports.Before = methods.Before;
var BeforeAll = exports.BeforeAll = methods.BeforeAll;
var defineParameterType = exports.defineParameterType = methods.defineParameterType;
var defineStep = exports.defineStep = methods.defineStep;
var defineSupportCode = exports.defineSupportCode = methods.defineSupportCode;
var Given = exports.Given = methods.Given;
var setDefaultTimeout = exports.setDefaultTimeout = methods.setDefaultTimeout;
var setDefinitionFunctionWrapper = exports.setDefinitionFunctionWrapper = methods.setDefinitionFunctionWrapper;
var setWorldConstructor = exports.setWorldConstructor = methods.setWorldConstructor;
var Then = exports.Then = methods.Then;
var When = exports.When = methods.When;

},{"./cli":317,"./cli/helpers":315,"./formatter":335,"./formatter/builder":321,"./formatter/helpers":327,"./formatter/json_formatter":336,"./formatter/progress_formatter":338,"./formatter/rerun_formatter":339,"./formatter/snippets_formatter":340,"./formatter/summary_formatter":343,"./formatter/usage_formatter":344,"./formatter/usage_json_formatter":345,"./pickle_filter":351,"./runtime":354,"./status":360,"./support_code_library_builder":364}],347:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var DataTable = function () {
  function DataTable(gherkinData) {
    (0, _classCallCheck3.default)(this, DataTable);

    this.rawTable = gherkinData.rows.map(function (row) {
      return row.cells.map(function (cell) {
        return cell.value;
      });
    });
  }

  (0, _createClass3.default)(DataTable, [{
    key: 'hashes',
    value: function hashes() {
      var copy = this.raw();
      var keys = copy[0];
      var valuesArray = copy.slice(1);
      return valuesArray.map(function (values) {
        return _lodash2.default.zipObject(keys, values);
      });
    }
  }, {
    key: 'raw',
    value: function raw() {
      return this.rawTable.slice(0);
    }
  }, {
    key: 'rows',
    value: function rows() {
      var copy = this.raw();
      copy.shift();
      return copy;
    }
  }, {
    key: 'rowsHash',
    value: function rowsHash() {
      var rows = this.raw();
      var everyRowHasTwoColumns = _lodash2.default.every(rows, function (row) {
        return row.length === 2;
      });
      if (!everyRowHasTwoColumns) {
        throw new Error('rowsHash can only be called on a data table where all rows have exactly two columns');
      }
      return _lodash2.default.fromPairs(rows);
    }
  }]);
  return DataTable;
}();

exports.default = DataTable;

},{"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"lodash":241}],348:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _cucumberExpressions = require('cucumber-expressions');

var _data_table = require('./data_table');

var _data_table2 = _interopRequireDefault(_data_table);

var _step_arguments = require('../step_arguments');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var StepDefinition = function () {
  function StepDefinition(_ref) {
    var code = _ref.code,
        line = _ref.line,
        options = _ref.options,
        pattern = _ref.pattern,
        uri = _ref.uri;
    (0, _classCallCheck3.default)(this, StepDefinition);

    this.code = code;
    this.line = line;
    this.options = options;
    this.pattern = pattern;
    this.uri = uri;
  }

  (0, _createClass3.default)(StepDefinition, [{
    key: 'buildInvalidCodeLengthMessage',
    value: function buildInvalidCodeLengthMessage(syncOrPromiseLength, callbackLength) {
      return 'function has ' + this.code.length + ' arguments' + (', should have ' + syncOrPromiseLength + ' (if synchronous or returning a promise)') + (' or ' + callbackLength + ' (if accepting a callback)');
    }
  }, {
    key: 'getInvalidCodeLengthMessage',
    value: function getInvalidCodeLengthMessage(parameters) {
      return this.buildInvalidCodeLengthMessage(parameters.length, parameters.length + 1);
    }
  }, {
    key: 'getInvocationParameters',
    value: function getInvocationParameters(_ref2) {
      var step = _ref2.step,
          parameterTypeRegistry = _ref2.parameterTypeRegistry,
          world = _ref2.world;

      var cucumberExpression = this.getCucumberExpression(parameterTypeRegistry);
      var stepNameParameters = cucumberExpression.match(step.text).map(function (arg) {
        return arg.getValue(world);
      });
      var iterator = (0, _step_arguments.buildStepArgumentIterator)({
        dataTable: function dataTable(arg) {
          return new _data_table2.default(arg);
        },
        docString: function docString(arg) {
          return arg.content;
        }
      });
      var stepArgumentParameters = step.arguments.map(iterator);
      return stepNameParameters.concat(stepArgumentParameters);
    }
  }, {
    key: 'getCucumberExpression',
    value: function getCucumberExpression(parameterTypeRegistry) {
      if (typeof this.pattern === 'string') {
        return new _cucumberExpressions.CucumberExpression(this.pattern, parameterTypeRegistry);
      }
      return new _cucumberExpressions.RegularExpression(this.pattern, parameterTypeRegistry);
    }
  }, {
    key: 'getValidCodeLengths',
    value: function getValidCodeLengths(parameters) {
      return [parameters.length, parameters.length + 1];
    }
  }, {
    key: 'matchesStepName',
    value: function matchesStepName(_ref3) {
      var stepName = _ref3.stepName,
          parameterTypeRegistry = _ref3.parameterTypeRegistry;

      var cucumberExpression = this.getCucumberExpression(parameterTypeRegistry);
      return Boolean(cucumberExpression.match(stepName));
    }
  }]);
  return StepDefinition;
}();

exports.default = StepDefinition;

},{"../step_arguments":361,"./data_table":347,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"cucumber-expressions":161}],349:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _pickle_filter = require('../pickle_filter');

var _pickle_filter2 = _interopRequireDefault(_pickle_filter);

var _step_definition = require('./step_definition');

var _step_definition2 = _interopRequireDefault(_step_definition);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var TestCaseHookDefinition = function (_StepDefinition) {
  (0, _inherits3.default)(TestCaseHookDefinition, _StepDefinition);

  function TestCaseHookDefinition(data) {
    (0, _classCallCheck3.default)(this, TestCaseHookDefinition);

    var _this = (0, _possibleConstructorReturn3.default)(this, (TestCaseHookDefinition.__proto__ || Object.getPrototypeOf(TestCaseHookDefinition)).call(this, data));

    _this.pickleFilter = new _pickle_filter2.default({
      tagExpression: _this.options.tags
    });
    return _this;
  }

  (0, _createClass3.default)(TestCaseHookDefinition, [{
    key: 'appliesToTestCase',
    value: function appliesToTestCase(_ref) {
      var pickle = _ref.pickle,
          uri = _ref.uri;

      return this.pickleFilter.matches({ pickle: pickle, uri: uri });
    }
  }, {
    key: 'getInvalidCodeLengthMessage',
    value: function getInvalidCodeLengthMessage() {
      return this.buildInvalidCodeLengthMessage('0 or 1', '2');
    }
  }, {
    key: 'getInvocationParameters',
    value: function getInvocationParameters(_ref2) {
      var hookParameter = _ref2.hookParameter;

      return [hookParameter];
    }
  }, {
    key: 'getValidCodeLengths',
    value: function getValidCodeLengths() {
      return [0, 1, 2];
    }
  }]);
  return TestCaseHookDefinition;
}(_step_definition2.default);

exports.default = TestCaseHookDefinition;

},{"../pickle_filter":351,"./step_definition":348,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28}],350:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _step_definition = require('./step_definition');

var _step_definition2 = _interopRequireDefault(_step_definition);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var TestRunHookDefinition = function (_StepDefinition) {
  (0, _inherits3.default)(TestRunHookDefinition, _StepDefinition);

  function TestRunHookDefinition() {
    (0, _classCallCheck3.default)(this, TestRunHookDefinition);
    return (0, _possibleConstructorReturn3.default)(this, (TestRunHookDefinition.__proto__ || Object.getPrototypeOf(TestRunHookDefinition)).apply(this, arguments));
  }

  (0, _createClass3.default)(TestRunHookDefinition, [{
    key: 'getInvalidCodeLengthMessage',
    value: function getInvalidCodeLengthMessage() {
      return this.buildInvalidCodeLengthMessage('0', '1');
    }
  }, {
    key: 'getInvocationParameters',
    value: function getInvocationParameters() {
      return [];
    }
  }, {
    key: 'getValidCodeLengths',
    value: function getValidCodeLengths() {
      return [0, 1];
    }
  }]);
  return TestRunHookDefinition;
}(_step_definition2.default);

exports.default = TestRunHookDefinition;

},{"./step_definition":348,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/inherits":27,"babel-runtime/helpers/possibleConstructorReturn":28}],351:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _cucumberTagExpressions = require('cucumber-tag-expressions');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var FEATURE_LINENUM_REGEXP = /^(.*?)((?::[\d]+)+)?$/;
var tagExpressionParser = new _cucumberTagExpressions.TagExpressionParser();

var PickleFilter = function () {
  function PickleFilter(_ref) {
    var featurePaths = _ref.featurePaths,
        names = _ref.names,
        tagExpression = _ref.tagExpression;
    (0, _classCallCheck3.default)(this, PickleFilter);

    this.featureUriToLinesMapping = this.getFeatureUriToLinesMapping(featurePaths || []);
    this.names = names || [];
    if (tagExpression) {
      this.tagExpressionNode = tagExpressionParser.parse(tagExpression || '');
    }
  }

  (0, _createClass3.default)(PickleFilter, [{
    key: 'getFeatureUriToLinesMapping',
    value: function getFeatureUriToLinesMapping(featurePaths) {
      var mapping = {};
      featurePaths.forEach(function (featurePath) {
        var match = FEATURE_LINENUM_REGEXP.exec(featurePath);
        if (match) {
          var uri = _path2.default.resolve(match[1]);
          var linesExpression = match[2];
          if (linesExpression) {
            if (!mapping[uri]) {
              mapping[uri] = [];
            }
            linesExpression.slice(1).split(':').forEach(function (line) {
              mapping[uri].push(parseInt(line));
            });
          }
        }
      });
      return mapping;
    }
  }, {
    key: 'matches',
    value: function matches(_ref2) {
      var pickle = _ref2.pickle,
          uri = _ref2.uri;

      return this.matchesAnyLine({ pickle: pickle, uri: uri }) && this.matchesAnyName(pickle) && this.matchesAllTagExpressions(pickle);
    }
  }, {
    key: 'matchesAnyLine',
    value: function matchesAnyLine(_ref3) {
      var pickle = _ref3.pickle,
          uri = _ref3.uri;

      var lines = this.featureUriToLinesMapping[_path2.default.resolve(uri)];
      if (lines) {
        return _lodash2.default.size(_lodash2.default.intersection(lines, _lodash2.default.map(pickle.locations, 'line'))) > 0;
      }
      return true;
    }
  }, {
    key: 'matchesAnyName',
    value: function matchesAnyName(pickle) {
      if (this.names.length === 0) {
        return true;
      }
      return _lodash2.default.some(this.names, function (name) {
        return pickle.name.match(name);
      });
    }
  }, {
    key: 'matchesAllTagExpressions',
    value: function matchesAllTagExpressions(pickle) {
      if (!this.tagExpressionNode) {
        return true;
      }
      return this.tagExpressionNode.evaluate(_lodash2.default.map(pickle.tags, 'name'));
    }
  }]);
  return PickleFilter;
}();

exports.default = PickleFilter;

},{"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"cucumber-tag-expressions":167,"lodash":241,"path":251}],352:[function(require,module,exports){
(function (Buffer){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _isStream = require('is-stream');

var _isStream2 = _interopRequireDefault(_isStream);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var AttachmentManager = function () {
  function AttachmentManager(onAttachment) {
    (0, _classCallCheck3.default)(this, AttachmentManager);

    this.onAttachment = onAttachment;
  }

  (0, _createClass3.default)(AttachmentManager, [{
    key: 'create',
    value: function create(data, mediaType, callback) {
      if (Buffer.isBuffer(data)) {
        if (!mediaType) {
          throw Error('Buffer attachments must specify a media type');
        }
        this.createBufferAttachment(data, mediaType);
      } else if (_isStream2.default.readable(data)) {
        if (!mediaType) {
          throw Error('Stream attachments must specify a media type');
        }
        return this.createStreamAttachment(data, mediaType, callback);
      } else if (typeof data === 'string') {
        if (!mediaType) {
          mediaType = 'text/plain';
        }
        this.createStringAttachment(data, { type: mediaType });
      } else {
        throw Error('Invalid attachment data: must be a buffer, readable stream, or string');
      }
    }
  }, {
    key: 'createBufferAttachment',
    value: function createBufferAttachment(data, mediaType) {
      this.createStringAttachment(data.toString('base64'), {
        encoding: 'base64',
        type: mediaType
      });
    }
  }, {
    key: 'createStreamAttachment',
    value: function createStreamAttachment(data, mediaType, callback) {
      var _this = this;

      var promise = new _bluebird2.default(function (resolve, reject) {
        var buffers = [];
        data.on('data', function (chunk) {
          buffers.push(chunk);
        });
        data.on('end', function () {
          _this.createBufferAttachment(Buffer.concat(buffers), mediaType);
          resolve();
        });
        data.on('error', reject);
      });
      if (callback) {
        promise.then(callback, callback);
      } else {
        return promise;
      }
    }
  }, {
    key: 'createStringAttachment',
    value: function createStringAttachment(data, media) {
      this.onAttachment({ data: data, media: media });
    }
  }]);
  return AttachmentManager;
}();

exports.default = AttachmentManager;

}).call(this,require("buffer").Buffer)
},{"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"bluebird":36,"buffer":40,"is-stream":238}],353:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _toConsumableArray2 = require('babel-runtime/helpers/toConsumableArray');

var _toConsumableArray3 = _interopRequireDefault(_toConsumableArray2);

exports.getAmbiguousStepException = getAmbiguousStepException;

var _location_helpers = require('../formatter/helpers/location_helpers');

var _cliTable = require('cli-table');

var _cliTable2 = _interopRequireDefault(_cliTable);

var _indentString = require('indent-string');

var _indentString2 = _interopRequireDefault(_indentString);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function getAmbiguousStepException(stepDefinitions) {
  var table = new _cliTable2.default({
    chars: {
      bottom: '',
      'bottom-left': '',
      'bottom-mid': '',
      'bottom-right': '',
      left: '',
      'left-mid': '',
      mid: '',
      'mid-mid': '',
      middle: ' - ',
      right: '',
      'right-mid': '',
      top: '',
      'top-left': '',
      'top-mid': '',
      'top-right': ''
    },
    style: {
      border: [],
      'padding-left': 0,
      'padding-right': 0
    }
  });
  table.push.apply(table, (0, _toConsumableArray3.default)(stepDefinitions.map(function (stepDefinition) {
    var pattern = stepDefinition.pattern.toString();
    return [pattern, (0, _location_helpers.formatLocation)(stepDefinition)];
  })));
  return '' + ('Multiple step definitions match:' + '\n') + (0, _indentString2.default)(table.toString(), 2);
}

},{"../formatter/helpers/location_helpers":330,"babel-runtime/helpers/toConsumableArray":30,"cli-table":41,"indent-string":233}],354:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _helpers = require('../formatter/helpers');

var _stack_trace_filter = require('./stack_trace_filter');

var _stack_trace_filter2 = _interopRequireDefault(_stack_trace_filter);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

var _test_case_runner = require('./test_case_runner');

var _test_case_runner2 = _interopRequireDefault(_test_case_runner);

var _user_code_runner = require('../user_code_runner');

var _user_code_runner2 = _interopRequireDefault(_user_code_runner);

var _verror = require('verror');

var _verror2 = _interopRequireDefault(_verror);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var Runtime = function () {
  // options - {dryRun, failFast, filterStacktraces, strict}
  function Runtime(_ref) {
    var eventBroadcaster = _ref.eventBroadcaster,
        options = _ref.options,
        supportCodeLibrary = _ref.supportCodeLibrary,
        testCases = _ref.testCases;
    (0, _classCallCheck3.default)(this, Runtime);

    this.eventBroadcaster = eventBroadcaster;
    this.options = options || {};
    this.stackTraceFilter = new _stack_trace_filter2.default();
    this.supportCodeLibrary = supportCodeLibrary;
    this.testCases = testCases || [];
    this.result = {
      duration: 0,
      success: true
    };
  }

  (0, _createClass3.default)(Runtime, [{
    key: 'runTestRunHooks',
    value: function () {
      var _ref2 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee2(key, name) {
        var _this = this;

        return _regenerator2.default.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                _context2.next = 2;
                return _bluebird2.default.each(this.supportCodeLibrary[key], function () {
                  var _ref3 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee(hookDefinition) {
                    var _ref4, error, location;

                    return _regenerator2.default.wrap(function _callee$(_context) {
                      while (1) {
                        switch (_context.prev = _context.next) {
                          case 0:
                            _context.next = 2;
                            return _user_code_runner2.default.run({
                              argsArray: [],
                              fn: hookDefinition.code,
                              thisArg: null,
                              timeoutInMilliseconds: hookDefinition.options.timeout || _this.supportCodeLibrary.defaultTimeout
                            });

                          case 2:
                            _ref4 = _context.sent;
                            error = _ref4.error;

                            if (!error) {
                              _context.next = 7;
                              break;
                            }

                            location = (0, _helpers.formatLocation)(hookDefinition);
                            throw new _verror2.default(error, name + ' hook errored, process exiting: ' + location);

                          case 7:
                          case 'end':
                            return _context.stop();
                        }
                      }
                    }, _callee, _this);
                  }));

                  return function (_x3) {
                    return _ref3.apply(this, arguments);
                  };
                }());

              case 2:
              case 'end':
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function runTestRunHooks(_x, _x2) {
        return _ref2.apply(this, arguments);
      }

      return runTestRunHooks;
    }()
  }, {
    key: 'runTestCase',
    value: function () {
      var _ref5 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee3(testCase) {
        var skip, testCaseRunner, testCaseResult;
        return _regenerator2.default.wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                skip = this.options.dryRun || this.options.failFast && !this.result.success;
                testCaseRunner = new _test_case_runner2.default({
                  eventBroadcaster: this.eventBroadcaster,
                  skip: skip,
                  supportCodeLibrary: this.supportCodeLibrary,
                  testCase: testCase,
                  worldParameters: this.options.worldParameters
                });
                _context3.next = 4;
                return testCaseRunner.run();

              case 4:
                testCaseResult = _context3.sent;

                if (testCaseResult.duration) {
                  this.result.duration += testCaseResult.duration;
                }
                if (this.shouldCauseFailure(testCaseResult.status)) {
                  this.result.success = false;
                }

              case 7:
              case 'end':
                return _context3.stop();
            }
          }
        }, _callee3, this);
      }));

      function runTestCase(_x4) {
        return _ref5.apply(this, arguments);
      }

      return runTestCase;
    }()
  }, {
    key: 'start',
    value: function () {
      var _ref6 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee4() {
        return _regenerator2.default.wrap(function _callee4$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                if (this.options.filterStacktraces) {
                  this.stackTraceFilter.filter();
                }
                this.eventBroadcaster.emit('test-run-started');
                _context4.next = 4;
                return this.runTestRunHooks('beforeTestRunHookDefinitions', 'a BeforeAll');

              case 4:
                _context4.next = 6;
                return _bluebird2.default.each(this.testCases, this.runTestCase.bind(this));

              case 6:
                _context4.next = 8;
                return this.runTestRunHooks('afterTestRunHookDefinitions', 'an AfterAll');

              case 8:
                this.eventBroadcaster.emit('test-run-finished', { result: this.result });
                if (this.options.filterStacktraces) {
                  this.stackTraceFilter.unfilter();
                }
                return _context4.abrupt('return', this.result.success);

              case 11:
              case 'end':
                return _context4.stop();
            }
          }
        }, _callee4, this);
      }));

      function start() {
        return _ref6.apply(this, arguments);
      }

      return start;
    }()
  }, {
    key: 'shouldCauseFailure',
    value: function shouldCauseFailure(status) {
      return _lodash2.default.includes([_status2.default.AMBIGUOUS, _status2.default.FAILED, _status2.default.UNDEFINED], status) || status === _status2.default.PENDING && this.options.strict;
    }
  }]);
  return Runtime;
}();

exports.default = Runtime;

},{"../formatter/helpers":327,"../status":360,"../user_code_runner":369,"./stack_trace_filter":357,"./test_case_runner":359,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/regenerator":32,"bluebird":36,"lodash":241,"verror":310}],355:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
var commandTypes = {
  INITIALIZE: 'initialize',
  RUN: 'run',
  READY: 'ready',
  FINALIZE: 'finalize',
  EVENT: 'event'
};

exports.default = commandTypes;

},{}],356:[function(require,module,exports){
(function (process,__dirname){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _child_process = require('child_process');

var _child_process2 = _interopRequireDefault(_child_process);

var _command_types = require('./command_types');

var _command_types2 = _interopRequireDefault(_command_types);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _readline = require('readline');

var _readline2 = _interopRequireDefault(_readline);

var _status = require('../../status');

var _status2 = _interopRequireDefault(_status);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var slaveCommand = _path2.default.resolve(__dirname, '..', '..', '..', 'bin', 'run_slave');

var Master = function () {
  // options - {dryRun, failFast, filterStacktraces, strict}
  function Master(_ref) {
    var eventBroadcaster = _ref.eventBroadcaster,
        options = _ref.options,
        supportCodePaths = _ref.supportCodePaths,
        supportCodeRequiredModules = _ref.supportCodeRequiredModules,
        testCases = _ref.testCases;
    (0, _classCallCheck3.default)(this, Master);

    this.eventBroadcaster = eventBroadcaster;
    this.options = options || {};
    this.supportCodePaths = supportCodePaths;
    this.supportCodeRequiredModules = supportCodeRequiredModules;
    this.testCases = testCases || [];
    this.nextTestCaseIndex = 0;
    this.testCasesCompleted = 0;
    this.result = {
      duration: 0,
      success: true
    };
    this.slaves = {};
  }

  (0, _createClass3.default)(Master, [{
    key: 'parseSlaveLine',
    value: function parseSlaveLine(slave, line) {
      var input = JSON.parse(line);
      switch (input.command) {
        case _command_types2.default.READY:
          this.giveSlaveWork(slave);
          break;
        case _command_types2.default.EVENT:
          this.eventBroadcaster.emit(input.name, input.data);
          if (input.name === 'test-case-finished') {
            this.parseTestCaseResult(input.data.result);
          }
          break;
        default:
          throw new Error('Unexpected message from slave: ' + line);
      }
    }
  }, {
    key: 'startSlave',
    value: function startSlave(id, total) {
      var _this = this;

      var slaveProcess = _child_process2.default.spawn(slaveCommand, [], {
        env: _lodash2.default.assign({}, process.env, {
          CUCUMBER_PARALLEL: 'true',
          CUCUMBER_TOTAL_SLAVES: total,
          CUCUMBER_SLAVE_ID: id
        }),
        stdio: ['pipe', 'pipe', process.stderr]
      });
      var rl = _readline2.default.createInterface({ input: slaveProcess.stdout });
      var slave = { process: slaveProcess };
      this.slaves[id] = slave;
      rl.on('line', function (line) {
        _this.parseSlaveLine(slave, line);
      });
      rl.on('close', function () {
        slave.closed = true;
        _this.onSlaveClose();
      });
      slave.process.stdin.write(JSON.stringify({
        command: _command_types2.default.INITIALIZE,
        filterStacktraces: this.options.filterStacktraces,
        supportCodePaths: this.supportCodePaths,
        supportCodeRequiredModules: this.supportCodeRequiredModules,
        worldParameters: this.options.worldParameters
      }) + '\n');
    }
  }, {
    key: 'onSlaveClose',
    value: function onSlaveClose() {
      if (_lodash2.default.every(this.slaves, 'closed')) {
        this.eventBroadcaster.emit('test-run-finished', { result: this.result });
        this.onFinish(this.result.success);
      }
    }
  }, {
    key: 'parseTestCaseResult',
    value: function parseTestCaseResult(testCaseResult) {
      this.testCasesCompleted += 1;
      if (testCaseResult.duration) {
        this.result.duration += testCaseResult.duration;
      }
      if (this.shouldCauseFailure(testCaseResult.status)) {
        this.result.success = false;
      }
    }
  }, {
    key: 'run',
    value: function run(numberOfSlaves, done) {
      var _this2 = this;

      this.eventBroadcaster.emit('test-run-started');
      _lodash2.default.times(numberOfSlaves, function (id) {
        return _this2.startSlave(id, numberOfSlaves);
      });
      this.onFinish = done;
    }
  }, {
    key: 'giveSlaveWork',
    value: function giveSlaveWork(slave) {
      if (this.nextTestCaseIndex === this.testCases.length) {
        slave.process.stdin.write(JSON.stringify({ command: _command_types2.default.FINALIZE }) + '\n');
        return;
      }
      var testCase = this.testCases[this.nextTestCaseIndex];
      this.nextTestCaseIndex += 1;
      var skip = this.options.dryRun || this.options.failFast && !this.result.success;
      slave.process.stdin.write(JSON.stringify({ command: _command_types2.default.RUN, skip: skip, testCase: testCase }) + '\n');
    }
  }, {
    key: 'shouldCauseFailure',
    value: function shouldCauseFailure(status) {
      return _lodash2.default.includes([_status2.default.AMBIGUOUS, _status2.default.FAILED, _status2.default.UNDEFINED], status) || status === _status2.default.PENDING && this.options.strict;
    }
  }]);
  return Master;
}();

exports.default = Master;

}).call(this,require('_process'),"/src/runtime/parallel")
},{"../../status":360,"./command_types":355,"_process":255,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"child_process":39,"lodash":241,"path":251,"readline":39}],357:[function(require,module,exports){
(function (__dirname){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _stackChain = require('stack-chain');

var _stackChain2 = _interopRequireDefault(_stackChain);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var StackTraceFilter = function () {
  function StackTraceFilter() {
    (0, _classCallCheck3.default)(this, StackTraceFilter);

    this.cucumberPath = _path2.default.join(__dirname, '..', '..');
  }

  (0, _createClass3.default)(StackTraceFilter, [{
    key: 'filter',
    value: function filter() {
      var _this = this;

      this.currentFilter = _stackChain2.default.filter.attach(function (_err, frames) {
        if (_this.isErrorInCucumber(frames)) {
          return frames;
        }
        var index = _lodash2.default.findIndex(frames, _this.isFrameInCucumber.bind(_this));
        if (index === -1) {
          return frames;
        }
        return frames.slice(0, index);
      });
    }
  }, {
    key: 'isErrorInCucumber',
    value: function isErrorInCucumber(frames) {
      var filteredFrames = _lodash2.default.reject(frames, this.isFrameInNode.bind(this));
      return filteredFrames.length > 0 && this.isFrameInCucumber(filteredFrames[0]);
    }
  }, {
    key: 'isFrameInCucumber',
    value: function isFrameInCucumber(frame) {
      var fileName = frame.getFileName() || '';
      return _lodash2.default.startsWith(fileName, this.cucumberPath);
    }
  }, {
    key: 'isFrameInNode',
    value: function isFrameInNode(frame) {
      var fileName = frame.getFileName() || '';
      return !_lodash2.default.includes(fileName, _path2.default.sep);
    }
  }, {
    key: 'unfilter',
    value: function unfilter() {
      _stackChain2.default.filter.deattach(this.currentFilter);
    }
  }]);
  return StackTraceFilter;
}();

exports.default = StackTraceFilter;

}).call(this,"/src/runtime")
},{"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"lodash":241,"path":251,"stack-chain":284}],358:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var run = function () {
  var _ref2 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee(_ref) {
    var defaultTimeout = _ref.defaultTimeout,
        hookParameter = _ref.hookParameter,
        parameterTypeRegistry = _ref.parameterTypeRegistry,
        step = _ref.step,
        stepDefinition = _ref.stepDefinition,
        world = _ref.world;
    var error, result, parameters, timeoutInMilliseconds, validCodeLengths, data, testStepResult;
    return _regenerator2.default.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            beginTiming();
            error = void 0, result = void 0, parameters = void 0;
            _context.prev = 2;
            _context.next = 5;
            return _bluebird2.default.all(stepDefinition.getInvocationParameters({
              hookParameter: hookParameter,
              parameterTypeRegistry: parameterTypeRegistry,
              step: step,
              world: world
            }));

          case 5:
            parameters = _context.sent;
            _context.next = 11;
            break;

          case 8:
            _context.prev = 8;
            _context.t0 = _context['catch'](2);

            error = _context.t0;

          case 11:
            if (error) {
              _context.next = 23;
              break;
            }

            timeoutInMilliseconds = stepDefinition.options.timeout || defaultTimeout;
            validCodeLengths = stepDefinition.getValidCodeLengths(parameters);

            if (!_lodash2.default.includes(validCodeLengths, stepDefinition.code.length)) {
              _context.next = 22;
              break;
            }

            _context.next = 17;
            return _user_code_runner2.default.run({
              argsArray: parameters,
              fn: stepDefinition.code,
              thisArg: world,
              timeoutInMilliseconds: timeoutInMilliseconds
            });

          case 17:
            data = _context.sent;

            error = data.error;
            result = data.result;
            _context.next = 23;
            break;

          case 22:
            error = stepDefinition.getInvalidCodeLengthMessage(parameters);

          case 23:
            testStepResult = { duration: endTiming() };


            if (result === 'skipped') {
              testStepResult.status = _status2.default.SKIPPED;
            } else if (result === 'pending') {
              testStepResult.status = _status2.default.PENDING;
            } else if (error) {
              testStepResult.exception = error;
              testStepResult.status = _status2.default.FAILED;
            } else {
              testStepResult.status = _status2.default.PASSED;
            }

            return _context.abrupt('return', testStepResult);

          case 26:
          case 'end':
            return _context.stop();
        }
      }
    }, _callee, this, [[2, 8]]);
  }));

  return function run(_x) {
    return _ref2.apply(this, arguments);
  };
}();

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

var _time = require('../time');

var _time2 = _interopRequireDefault(_time);

var _user_code_runner = require('../user_code_runner');

var _user_code_runner2 = _interopRequireDefault(_user_code_runner);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var beginTiming = _time2.default.beginTiming,
    endTiming = _time2.default.endTiming;
exports.default = { run: run };

},{"../status":360,"../time":367,"../user_code_runner":369,"babel-runtime/regenerator":32,"bluebird":36,"lodash":241}],359:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _helpers = require('./helpers');

var _attachment_manager = require('./attachment_manager');

var _attachment_manager2 = _interopRequireDefault(_attachment_manager);

var _status = require('../status');

var _status2 = _interopRequireDefault(_status);

var _step_runner = require('./step_runner');

var _step_runner2 = _interopRequireDefault(_step_runner);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var TestCaseRunner = function () {
  function TestCaseRunner(_ref) {
    var _this = this;

    var eventBroadcaster = _ref.eventBroadcaster,
        skip = _ref.skip,
        testCase = _ref.testCase,
        supportCodeLibrary = _ref.supportCodeLibrary,
        worldParameters = _ref.worldParameters;
    (0, _classCallCheck3.default)(this, TestCaseRunner);

    var attachmentManager = new _attachment_manager2.default(function (_ref2) {
      var data = _ref2.data,
          media = _ref2.media;

      _this.emit('test-step-attachment', {
        index: _this.testStepIndex,
        data: data,
        media: media
      });
    });
    this.eventBroadcaster = eventBroadcaster;
    this.skip = skip;
    this.testCase = testCase;
    this.supportCodeLibrary = supportCodeLibrary;
    this.world = new supportCodeLibrary.World({
      attach: attachmentManager.create.bind(attachmentManager),
      parameters: worldParameters
    });
    this.beforeHookDefinitions = this.getBeforeHookDefinitions();
    this.afterHookDefinitions = this.getAfterHookDefinitions();
    this.testStepIndex = 0;
    this.result = {
      duration: 0,
      status: this.skip ? _status2.default.SKIPPED : _status2.default.PASSED
    };
    this.testCaseSourceLocation = {
      uri: this.testCase.uri,
      line: this.testCase.pickle.locations[0].line
    };
  }

  (0, _createClass3.default)(TestCaseRunner, [{
    key: 'emit',
    value: function emit(name, data) {
      var eventData = (0, _extends3.default)({}, data);
      if (_lodash2.default.startsWith(name, 'test-case')) {
        eventData.sourceLocation = this.testCaseSourceLocation;
      } else {
        eventData.testCase = { sourceLocation: this.testCaseSourceLocation };
      }
      this.eventBroadcaster.emit(name, eventData);
    }
  }, {
    key: 'emitPrepared',
    value: function emitPrepared() {
      var _this2 = this;

      var steps = [];
      this.beforeHookDefinitions.forEach(function (definition) {
        var actionLocation = { uri: definition.uri, line: definition.line };
        steps.push({ actionLocation: actionLocation });
      });
      this.testCase.pickle.steps.forEach(function (step) {
        var actionLocations = _this2.getStepDefinitions(step).map(function (definition) {
          return {
            uri: definition.uri,
            line: definition.line
          };
        });
        var sourceLocation = {
          uri: _this2.testCase.uri,
          line: _lodash2.default.last(step.locations).line
        };
        var data = { sourceLocation: sourceLocation };
        if (actionLocations.length === 1) {
          data.actionLocation = actionLocations[0];
        }
        steps.push(data);
      });
      this.afterHookDefinitions.forEach(function (definition) {
        var actionLocation = { uri: definition.uri, line: definition.line };
        steps.push({ actionLocation: actionLocation });
      });
      this.emit('test-case-prepared', { steps: steps });
    }
  }, {
    key: 'getAfterHookDefinitions',
    value: function getAfterHookDefinitions() {
      var _this3 = this;

      return this.supportCodeLibrary.afterTestCaseHookDefinitions.filter(function (hookDefinition) {
        return hookDefinition.appliesToTestCase(_this3.testCase);
      });
    }
  }, {
    key: 'getBeforeHookDefinitions',
    value: function getBeforeHookDefinitions() {
      var _this4 = this;

      return this.supportCodeLibrary.beforeTestCaseHookDefinitions.filter(function (hookDefinition) {
        return hookDefinition.appliesToTestCase(_this4.testCase);
      });
    }
  }, {
    key: 'getStepDefinitions',
    value: function getStepDefinitions(step) {
      var _this5 = this;

      return this.supportCodeLibrary.stepDefinitions.filter(function (stepDefinition) {
        return stepDefinition.matchesStepName({
          stepName: step.text,
          parameterTypeRegistry: _this5.supportCodeLibrary.parameterTypeRegistry
        });
      });
    }
  }, {
    key: 'invokeStep',
    value: function invokeStep(step, stepDefinition, hookParameter) {
      return _step_runner2.default.run({
        defaultTimeout: this.supportCodeLibrary.defaultTimeout,
        hookParameter: hookParameter,
        parameterTypeRegistry: this.supportCodeLibrary.parameterTypeRegistry,
        step: step,
        stepDefinition: stepDefinition,
        world: this.world
      });
    }
  }, {
    key: 'isSkippingSteps',
    value: function isSkippingSteps() {
      return this.result.status !== _status2.default.PASSED;
    }
  }, {
    key: 'shouldUpdateStatus',
    value: function shouldUpdateStatus(testStepResult) {
      switch (testStepResult.status) {
        case _status2.default.FAILED:
        case _status2.default.AMBIGUOUS:
          return this.result.status !== _status2.default.FAILED || this.result.status !== _status2.default.AMBIGUOUS;
        default:
          return this.result.status === _status2.default.PASSED || this.result.status === _status2.default.SKIPPED;
      }
    }
  }, {
    key: 'aroundTestStep',
    value: function () {
      var _ref3 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee(runStepFn) {
        var testStepResult;
        return _regenerator2.default.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                this.emit('test-step-started', { index: this.testStepIndex });
                _context.next = 3;
                return runStepFn();

              case 3:
                testStepResult = _context.sent;

                if (testStepResult.duration) {
                  this.result.duration += testStepResult.duration;
                }
                if (this.shouldUpdateStatus(testStepResult)) {
                  this.result.status = testStepResult.status;
                }
                if (testStepResult.exception) {
                  this.result.exception = testStepResult.exception;
                }
                this.emit('test-step-finished', {
                  index: this.testStepIndex,
                  result: testStepResult
                });
                this.testStepIndex += 1;

              case 9:
              case 'end':
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function aroundTestStep(_x) {
        return _ref3.apply(this, arguments);
      }

      return aroundTestStep;
    }()
  }, {
    key: 'run',
    value: function () {
      var _ref4 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee2() {
        return _regenerator2.default.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                this.emitPrepared();
                this.emit('test-case-started', {});
                _context2.next = 4;
                return this.runHooks(this.beforeHookDefinitions, {
                  sourceLocation: this.testCaseSourceLocation,
                  pickle: this.testCase.pickle
                });

              case 4:
                _context2.next = 6;
                return this.runSteps();

              case 6:
                _context2.next = 8;
                return this.runHooks(this.afterHookDefinitions, {
                  sourceLocation: this.testCaseSourceLocation,
                  pickle: this.testCase.pickle,
                  result: this.result
                });

              case 8:
                this.emit('test-case-finished', { result: this.result });
                return _context2.abrupt('return', this.result);

              case 10:
              case 'end':
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function run() {
        return _ref4.apply(this, arguments);
      }

      return run;
    }()
  }, {
    key: 'runHook',
    value: function () {
      var _ref5 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee3(hookDefinition, hookParameter) {
        return _regenerator2.default.wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                if (!this.skip) {
                  _context3.next = 2;
                  break;
                }

                return _context3.abrupt('return', { status: _status2.default.SKIPPED });

              case 2:
                return _context3.abrupt('return', this.invokeStep(null, hookDefinition, hookParameter));

              case 3:
              case 'end':
                return _context3.stop();
            }
          }
        }, _callee3, this);
      }));

      function runHook(_x2, _x3) {
        return _ref5.apply(this, arguments);
      }

      return runHook;
    }()
  }, {
    key: 'runHooks',
    value: function () {
      var _ref6 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee5(hookDefinitions, hookParameter) {
        var _this6 = this;

        return _regenerator2.default.wrap(function _callee5$(_context5) {
          while (1) {
            switch (_context5.prev = _context5.next) {
              case 0:
                _context5.next = 2;
                return _bluebird2.default.each(hookDefinitions, function () {
                  var _ref7 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee4(hookDefinition) {
                    return _regenerator2.default.wrap(function _callee4$(_context4) {
                      while (1) {
                        switch (_context4.prev = _context4.next) {
                          case 0:
                            _context4.next = 2;
                            return _this6.aroundTestStep(function () {
                              return _this6.runHook(hookDefinition, hookParameter);
                            });

                          case 2:
                          case 'end':
                            return _context4.stop();
                        }
                      }
                    }, _callee4, _this6);
                  }));

                  return function (_x6) {
                    return _ref7.apply(this, arguments);
                  };
                }());

              case 2:
              case 'end':
                return _context5.stop();
            }
          }
        }, _callee5, this);
      }));

      function runHooks(_x4, _x5) {
        return _ref6.apply(this, arguments);
      }

      return runHooks;
    }()
  }, {
    key: 'runStep',
    value: function () {
      var _ref8 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee6(step) {
        var stepDefinitions;
        return _regenerator2.default.wrap(function _callee6$(_context6) {
          while (1) {
            switch (_context6.prev = _context6.next) {
              case 0:
                stepDefinitions = this.getStepDefinitions(step);

                if (!(stepDefinitions.length === 0)) {
                  _context6.next = 5;
                  break;
                }

                return _context6.abrupt('return', { status: _status2.default.UNDEFINED });

              case 5:
                if (!(stepDefinitions.length > 1)) {
                  _context6.next = 9;
                  break;
                }

                return _context6.abrupt('return', {
                  exception: (0, _helpers.getAmbiguousStepException)(stepDefinitions),
                  status: _status2.default.AMBIGUOUS
                });

              case 9:
                if (!this.isSkippingSteps()) {
                  _context6.next = 11;
                  break;
                }

                return _context6.abrupt('return', { status: _status2.default.SKIPPED });

              case 11:
                return _context6.abrupt('return', this.invokeStep(step, stepDefinitions[0]));

              case 12:
              case 'end':
                return _context6.stop();
            }
          }
        }, _callee6, this);
      }));

      function runStep(_x7) {
        return _ref8.apply(this, arguments);
      }

      return runStep;
    }()
  }, {
    key: 'runSteps',
    value: function () {
      var _ref9 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee8() {
        var _this7 = this;

        return _regenerator2.default.wrap(function _callee8$(_context8) {
          while (1) {
            switch (_context8.prev = _context8.next) {
              case 0:
                _context8.next = 2;
                return _bluebird2.default.each(this.testCase.pickle.steps, function () {
                  var _ref10 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee7(step) {
                    return _regenerator2.default.wrap(function _callee7$(_context7) {
                      while (1) {
                        switch (_context7.prev = _context7.next) {
                          case 0:
                            _context7.next = 2;
                            return _this7.aroundTestStep(function () {
                              return _this7.runStep(step);
                            });

                          case 2:
                          case 'end':
                            return _context7.stop();
                        }
                      }
                    }, _callee7, _this7);
                  }));

                  return function (_x8) {
                    return _ref10.apply(this, arguments);
                  };
                }());

              case 2:
              case 'end':
                return _context8.stop();
            }
          }
        }, _callee8, this);
      }));

      function runSteps() {
        return _ref9.apply(this, arguments);
      }

      return runSteps;
    }()
  }]);
  return TestCaseRunner;
}();

exports.default = TestCaseRunner;

},{"../status":360,"./attachment_manager":352,"./helpers":353,"./step_runner":358,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/helpers/extends":26,"babel-runtime/regenerator":32,"bluebird":36,"lodash":241}],360:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getStatusMapping = getStatusMapping;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var statuses = {
  AMBIGUOUS: 'ambiguous',
  FAILED: 'failed',
  PASSED: 'passed',
  PENDING: 'pending',
  SKIPPED: 'skipped',
  UNDEFINED: 'undefined'
};

exports.default = statuses;
function getStatusMapping(initialValue) {
  return _lodash2.default.chain(statuses).map(function (status) {
    return [status, initialValue];
  }).fromPairs().value();
}

},{"lodash":241}],361:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.buildStepArgumentIterator = buildStepArgumentIterator;

var _util = require('util');

var _util2 = _interopRequireDefault(_util);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function buildStepArgumentIterator(mapping) {
  return function (arg) {
    if (arg.hasOwnProperty('rows')) {
      return mapping.dataTable(arg);
    } else if (arg.hasOwnProperty('content')) {
      return mapping.docString(arg);
    }
    throw new Error('Unknown argument type:' + _util2.default.inspect(arg));
  };
}

},{"util":309}],362:[function(require,module,exports){
(function (__dirname){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.defineTestCaseHook = defineTestCaseHook;
exports.defineTestRunHook = defineTestRunHook;
exports.defineStep = defineStep;
exports.defineParameterType = defineParameterType;

var _util = require('util');

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _helpers = require('../formatter/helpers');

var _cucumberExpressions = require('cucumber-expressions');

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _stacktraceJs = require('stacktrace-js');

var _stacktraceJs2 = _interopRequireDefault(_stacktraceJs);

var _step_definition = require('../models/step_definition');

var _step_definition2 = _interopRequireDefault(_step_definition);

var _test_case_hook_definition = require('../models/test_case_hook_definition');

var _test_case_hook_definition2 = _interopRequireDefault(_test_case_hook_definition);

var _test_run_hook_definition = require('../models/test_run_hook_definition');

var _test_run_hook_definition2 = _interopRequireDefault(_test_run_hook_definition);

var _validate_arguments = require('./validate_arguments');

var _validate_arguments2 = _interopRequireDefault(_validate_arguments);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function defineTestCaseHook(builder, collectionName) {
  return function (options, code) {
    if (typeof options === 'string') {
      options = { tags: options };
    } else if (typeof options === 'function') {
      code = options;
      options = {};
    }

    var _getDefinitionLineAnd = getDefinitionLineAndUri(builder.cwd),
        line = _getDefinitionLineAnd.line,
        uri = _getDefinitionLineAnd.uri;

    (0, _validate_arguments2.default)({
      args: { code: code, options: options },
      fnName: 'defineTestCaseHook',
      location: (0, _helpers.formatLocation)({ line: line, uri: uri })
    });
    var hookDefinition = new _test_case_hook_definition2.default({
      code: code,
      line: line,
      options: options,
      uri: uri
    });
    builder.options[collectionName].push(hookDefinition);
  };
}

function defineTestRunHook(builder, collectionName) {
  return function (options, code) {
    if (typeof options === 'string') {
      options = { tags: options };
    } else if (typeof options === 'function') {
      code = options;
      options = {};
    }

    var _getDefinitionLineAnd2 = getDefinitionLineAndUri(builder.cwd),
        line = _getDefinitionLineAnd2.line,
        uri = _getDefinitionLineAnd2.uri;

    (0, _validate_arguments2.default)({
      args: { code: code, options: options },
      fnName: 'defineTestRunHook',
      location: (0, _helpers.formatLocation)({ line: line, uri: uri })
    });
    var hookDefinition = new _test_run_hook_definition2.default({
      code: code,
      line: line,
      options: options,
      uri: uri
    });
    builder.options[collectionName].push(hookDefinition);
  };
}

function defineStep(builder) {
  return function (pattern, options, code) {
    if (typeof options === 'function') {
      code = options;
      options = {};
    }

    var _getDefinitionLineAnd3 = getDefinitionLineAndUri(builder.cwd),
        line = _getDefinitionLineAnd3.line,
        uri = _getDefinitionLineAnd3.uri;

    (0, _validate_arguments2.default)({
      args: { code: code, pattern: pattern, options: options },
      fnName: 'defineStep',
      location: (0, _helpers.formatLocation)({ line: line, uri: uri })
    });
    var stepDefinition = new _step_definition2.default({
      code: code,
      line: line,
      options: options,
      pattern: pattern,
      uri: uri
    });
    builder.options.stepDefinitions.push(stepDefinition);
  };
}

var projectPath = _path2.default.join(__dirname, '..', '..');
var projectSrcPath = _path2.default.join(projectPath, 'src');
var projectLibPath = _path2.default.join(projectPath, 'lib');

function getDefinitionLineAndUri(cwd) {
  var line = 'unknown';
  var uri = 'unknown';
  var stackframes = _stacktraceJs2.default.getSync();
  var stackframe = _lodash2.default.find(stackframes, function (frame) {
    var filename = frame.getFileName();
    return !_lodash2.default.includes(filename, projectSrcPath) && !_lodash2.default.includes(filename, projectLibPath);
  });
  if (stackframe) {
    line = stackframe.getLineNumber();
    uri = stackframe.getFileName();
    if (uri) {
      uri = _path2.default.relative(cwd, uri);
    }
  }
  return { line: line, uri: uri };
}

function defineParameterType(builder) {
  return function (_ref) {
    var name = _ref.name,
        typeName = _ref.typeName,
        regexp = _ref.regexp,
        transformer = _ref.transformer,
        useForSnippets = _ref.useForSnippets,
        preferForRegexpMatch = _ref.preferForRegexpMatch;

    var getTypeName = (0, _util.deprecate)(function () {
      return typeName;
    }, 'Cucumber defineParameterType: Use name instead of typeName');
    var _name = name || getTypeName();
    if (typeof useForSnippets !== 'boolean') useForSnippets = true;
    if (typeof preferForRegexpMatch !== 'boolean') preferForRegexpMatch = false;
    var parameterType = new _cucumberExpressions.ParameterType(_name, regexp, null, transformer, useForSnippets, preferForRegexpMatch);
    builder.options.parameterTypeRegistry.defineParameterType(parameterType);
  };
}

}).call(this,"/src/support_code_library_builder")
},{"../formatter/helpers":327,"../models/step_definition":348,"../models/test_case_hook_definition":349,"../models/test_run_hook_definition":350,"./validate_arguments":366,"cucumber-expressions":161,"lodash":241,"path":251,"stacktrace-js":297,"util":309}],363:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.wrapDefinitions = wrapDefinitions;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _utilArity = require('util-arity');

var _utilArity2 = _interopRequireDefault(_utilArity);

var _isGenerator = require('is-generator');

var _isGenerator2 = _interopRequireDefault(_isGenerator);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function wrapDefinitions(_ref) {
  var cwd = _ref.cwd,
      definitionFunctionWrapper = _ref.definitionFunctionWrapper,
      definitions = _ref.definitions;

  if (definitionFunctionWrapper) {
    definitions.forEach(function (definition) {
      var codeLength = definition.code.length;
      var wrappedFn = definitionFunctionWrapper(definition.code, definition.options.wrapperOptions);
      if (wrappedFn !== definition.code) {
        definition.code = (0, _utilArity2.default)(codeLength, wrappedFn);
      }
    });
  } else {
    var generatorDefinitions = _lodash2.default.filter(definitions, function (definition) {
      return _isGenerator2.default.fn(definition.code);
    });
    if (generatorDefinitions.length > 0) {
      var references = generatorDefinitions.map(function (definition) {
        return _path2.default.relative(cwd, definition.uri) + ':' + definition.line;
      }).join('\n  ');
      var message = '\n        The following hook/step definitions use generator functions:\n\n          ' + references + '\n\n        Use \'this.setDefinitionFunctionWrapper(fn)\' to wrap then in a function that returns a promise.\n        ';
      throw new Error(message);
    }
  }
}

},{"is-generator":237,"lodash":241,"path":251,"util-arity":305}],364:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SupportCodeLibraryBuilder = undefined;

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _util = require('util');

var _util2 = _interopRequireDefault(_util);

var _parameter_type_registry_builder = require('./parameter_type_registry_builder');

var _parameter_type_registry_builder2 = _interopRequireDefault(_parameter_type_registry_builder);

var _define_helpers = require('./define_helpers');

var _finalize_helpers = require('./finalize_helpers');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var SupportCodeLibraryBuilder = exports.SupportCodeLibraryBuilder = function () {
  function SupportCodeLibraryBuilder() {
    var _this = this;

    (0, _classCallCheck3.default)(this, SupportCodeLibraryBuilder);

    this.methods = {
      defineParameterType: (0, _define_helpers.defineParameterType)(this),
      After: (0, _define_helpers.defineTestCaseHook)(this, 'afterTestCaseHookDefinitions'),
      AfterAll: (0, _define_helpers.defineTestRunHook)(this, 'afterTestRunHookDefinitions'),
      Before: (0, _define_helpers.defineTestCaseHook)(this, 'beforeTestCaseHookDefinitions'),
      BeforeAll: (0, _define_helpers.defineTestRunHook)(this, 'beforeTestRunHookDefinitions'),
      defineStep: (0, _define_helpers.defineStep)(this),
      defineSupportCode: _util2.default.deprecate(function (fn) {
        fn(_this.methods);
      }, 'cucumber: defineSupportCode is deprecated. Please require/import the individual methods instead.'),
      setDefaultTimeout: function setDefaultTimeout(milliseconds) {
        _this.options.defaultTimeout = milliseconds;
      },
      setDefinitionFunctionWrapper: function setDefinitionFunctionWrapper(fn) {
        _this.options.definitionFunctionWrapper = fn;
      },
      setWorldConstructor: function setWorldConstructor(fn) {
        _this.options.World = fn;
      }
    };
    this.methods.Given = this.methods.When = this.methods.Then = this.methods.defineStep;
  }

  (0, _createClass3.default)(SupportCodeLibraryBuilder, [{
    key: 'finalize',
    value: function finalize() {
      var _this2 = this;

      (0, _finalize_helpers.wrapDefinitions)({
        cwd: this.cwd,
        definitionFunctionWrapper: this.options.definitionFunctionWrapper,
        definitions: _lodash2.default.chain(['afterTestCaseHook', 'afterTestRunHook', 'beforeTestCaseHook', 'beforeTestRunHook', 'step']).map(function (key) {
          return _this2.options[key + 'Definitions'];
        }).flatten().value()
      });
      this.options.afterTestCaseHookDefinitions.reverse();
      this.options.afterTestRunHookDefinitions.reverse();
      return this.options;
    }
  }, {
    key: 'reset',
    value: function reset(cwd) {
      this.cwd = cwd;
      this.options = _lodash2.default.cloneDeep({
        afterTestCaseHookDefinitions: [],
        afterTestRunHookDefinitions: [],
        beforeTestCaseHookDefinitions: [],
        beforeTestRunHookDefinitions: [],
        defaultTimeout: 5000,
        definitionFunctionWrapper: null,
        stepDefinitions: [],
        parameterTypeRegistry: _parameter_type_registry_builder2.default.build(),
        World: function World(_ref) {
          var attach = _ref.attach,
              parameters = _ref.parameters;

          this.attach = attach;
          this.parameters = parameters;
        }
      });
    }
  }]);
  return SupportCodeLibraryBuilder;
}();

exports.default = new SupportCodeLibraryBuilder();

},{"./define_helpers":362,"./finalize_helpers":363,"./parameter_type_registry_builder":365,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"lodash":241,"util":309}],365:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _cucumberExpressions = require('cucumber-expressions');

function build() {
  return new _cucumberExpressions.ParameterTypeRegistry();
}

exports.default = { build: build };

},{"cucumber-expressions":161}],366:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

exports.default = validateArguments;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var optionsValidation = {
  expectedType: 'object or function',
  predicate: function predicate(_ref) {
    var options = _ref.options;

    return _lodash2.default.isPlainObject(options);
  }
};

var optionsTimeoutValidation = {
  identifier: '"options.timeout"',
  expectedType: 'integer',
  predicate: function predicate(_ref2) {
    var options = _ref2.options;

    return !options.timeout || _lodash2.default.isInteger(options.timeout);
  }
};

var fnValidation = {
  expectedType: 'function',
  predicate: function predicate(_ref3) {
    var code = _ref3.code;

    return _lodash2.default.isFunction(code);
  }
};

var validations = {
  defineTestRunHook: [(0, _extends3.default)({ identifier: 'first argument' }, optionsValidation), optionsTimeoutValidation, (0, _extends3.default)({ identifier: 'second argument' }, fnValidation)],
  defineTestCaseHook: [(0, _extends3.default)({ identifier: 'first argument' }, optionsValidation), {
    identifier: '"options.tags"',
    expectedType: 'string',
    predicate: function predicate(_ref4) {
      var options = _ref4.options;

      return !options.tags || _lodash2.default.isString(options.tags);
    }
  }, optionsTimeoutValidation, (0, _extends3.default)({ identifier: 'second argument' }, fnValidation)],
  defineStep: [{
    identifier: 'first argument',
    expectedType: 'string or regular expression',
    predicate: function predicate(_ref5) {
      var pattern = _ref5.pattern;

      return _lodash2.default.isRegExp(pattern) || _lodash2.default.isString(pattern);
    }
  }, (0, _extends3.default)({ identifier: 'second argument' }, optionsValidation), optionsTimeoutValidation, (0, _extends3.default)({ identifier: 'third argument' }, fnValidation)]
};

function validateArguments(_ref6) {
  var args = _ref6.args,
      fnName = _ref6.fnName,
      location = _ref6.location;

  validations[fnName].forEach(function (_ref7) {
    var identifier = _ref7.identifier,
        expectedType = _ref7.expectedType,
        predicate = _ref7.predicate;

    if (!predicate(args)) {
      throw new Error(location + ': Invalid ' + identifier + ': should be a ' + expectedType);
    }
  });
}

},{"babel-runtime/helpers/extends":26,"lodash":241}],367:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
var previousTimestamp = void 0;

var methods = {
  beginTiming: function beginTiming() {
    previousTimestamp = getTimestamp();
  },

  clearInterval: clearInterval.bind(global),
  clearTimeout: clearTimeout.bind(global),
  Date: Date,
  endTiming: function endTiming() {
    return getTimestamp() - previousTimestamp;
  },

  setInterval: setInterval.bind(global),
  setTimeout: setTimeout.bind(global)
};

if (typeof setImmediate !== 'undefined') {
  methods.setImmediate = setImmediate.bind(global);
  methods.clearImmediate = clearImmediate.bind(global);
}

function getTimestamp() {
  return new methods.Date().getTime();
}

exports.default = methods;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],368:[function(require,module,exports){
(function (process){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var UncaughtExceptionManager = function () {
  function UncaughtExceptionManager() {
    (0, _classCallCheck3.default)(this, UncaughtExceptionManager);
  }

  (0, _createClass3.default)(UncaughtExceptionManager, null, [{
    key: 'registerHandler',
    value: function registerHandler(handler) {
      if (typeof window === 'undefined') {
        process.addListener('uncaughtException', handler);
      } else {
        window.onerror = handler;
      }
    }
  }, {
    key: 'unregisterHandler',
    value: function unregisterHandler(handler) {
      if (typeof window === 'undefined') {
        process.removeListener('uncaughtException', handler);
      } else {
        window.onerror = void 0;
      }
    }
  }]);
  return UncaughtExceptionManager;
}();

exports.default = UncaughtExceptionManager;

}).call(this,require('_process'))
},{"_process":255,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24}],369:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _time = require('./time');

var _time2 = _interopRequireDefault(_time);

var _uncaught_exception_manager = require('./uncaught_exception_manager');

var _uncaught_exception_manager2 = _interopRequireDefault(_uncaught_exception_manager);

var _util = require('util');

var _util2 = _interopRequireDefault(_util);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var UserCodeRunner = function () {
  function UserCodeRunner() {
    (0, _classCallCheck3.default)(this, UserCodeRunner);
  }

  (0, _createClass3.default)(UserCodeRunner, null, [{
    key: 'run',
    value: function () {
      var _ref2 = (0, _bluebird.coroutine)( /*#__PURE__*/_regenerator2.default.mark(function _callee(_ref) {
        var argsArray = _ref.argsArray,
            thisArg = _ref.thisArg,
            fn = _ref.fn,
            timeoutInMilliseconds = _ref.timeoutInMilliseconds;

        var callbackPromise, fnReturn, _error, racingPromises, callbackInterface, promiseInterface, exceptionHandler, uncaughtExceptionPromise, timeoutId, timeoutPromise, error, result;

        return _regenerator2.default.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                callbackPromise = new _bluebird2.default(function (resolve, reject) {
                  argsArray.push(function (error, result) {
                    if (error) {
                      reject(error);
                    } else {
                      resolve(result);
                    }
                  });
                });
                fnReturn = void 0;
                _context.prev = 2;

                fnReturn = fn.apply(thisArg, argsArray);
                _context.next = 10;
                break;

              case 6:
                _context.prev = 6;
                _context.t0 = _context['catch'](2);
                _error = _context.t0 instanceof Error ? _context.t0 : new Error(_util2.default.format(_context.t0));
                return _context.abrupt('return', { error: _error });

              case 10:
                racingPromises = [];
                callbackInterface = fn.length === argsArray.length;
                promiseInterface = fnReturn && typeof fnReturn.then === 'function';

                if (!(callbackInterface && promiseInterface)) {
                  _context.next = 17;
                  break;
                }

                return _context.abrupt('return', {
                  error: new Error('function uses multiple asynchronous interfaces: callback and promise\n' + 'to use the callback interface: do not return a promise\n' + 'to use the promise interface: remove the last argument to the function')
                });

              case 17:
                if (!callbackInterface) {
                  _context.next = 21;
                  break;
                }

                racingPromises.push(callbackPromise);
                _context.next = 26;
                break;

              case 21:
                if (!promiseInterface) {
                  _context.next = 25;
                  break;
                }

                racingPromises.push(fnReturn);
                _context.next = 26;
                break;

              case 25:
                return _context.abrupt('return', { result: fnReturn });

              case 26:
                exceptionHandler = void 0;
                uncaughtExceptionPromise = new _bluebird2.default(function (resolve, reject) {
                  exceptionHandler = reject;
                  _uncaught_exception_manager2.default.registerHandler(exceptionHandler);
                });

                racingPromises.push(uncaughtExceptionPromise);

                timeoutId = void 0;

                if (timeoutInMilliseconds >= 0) {
                  timeoutPromise = new _bluebird2.default(function (resolve, reject) {
                    timeoutId = _time2.default.setTimeout(function () {
                      var timeoutMessage = 'function timed out, ensure the ' + (callbackInterface ? 'callback is executed' : 'promise resolves') + (' within ' + timeoutInMilliseconds + ' milliseconds');
                      reject(new Error(timeoutMessage));
                    }, timeoutInMilliseconds);
                  });

                  racingPromises.push(timeoutPromise);
                }

                error = void 0, result = void 0;
                _context.prev = 32;
                _context.next = 35;
                return _bluebird2.default.race(racingPromises);

              case 35:
                result = _context.sent;
                _context.next = 41;
                break;

              case 38:
                _context.prev = 38;
                _context.t1 = _context['catch'](32);

                if (_context.t1 instanceof Error) {
                  error = _context.t1;
                } else if (_context.t1) {
                  error = new Error(_util2.default.format(_context.t1));
                } else {
                  error = new Error('Promise rejected without a reason');
                }

              case 41:

                _time2.default.clearTimeout(timeoutId);
                _uncaught_exception_manager2.default.unregisterHandler(exceptionHandler);

                return _context.abrupt('return', { error: error, result: result });

              case 44:
              case 'end':
                return _context.stop();
            }
          }
        }, _callee, this, [[2, 6], [32, 38]]);
      }));

      function run(_x) {
        return _ref2.apply(this, arguments);
      }

      return run;
    }()
  }]);
  return UserCodeRunner;
}();

exports.default = UserCodeRunner;

},{"./time":367,"./uncaught_exception_manager":368,"babel-runtime/helpers/classCallCheck":23,"babel-runtime/helpers/createClass":24,"babel-runtime/regenerator":32,"bluebird":36,"util":309}]},{},[346])(346)
});