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https://www.maritatrans.com/global/js/moment.js?v=3.0

js maritatrans.com collected 2026-09-24 11:05:36 UTC 150,941 bytes, 4,602 lines download raw bytes

vendor: 6,471 bytes, lines 1-233
1//! moment.js
2
3;(function (global, factory) {
4    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
5    typeof define === 'function' && define.amd ? define(factory) :
6    global.moment = factory()
7}(this, (function () { 'use strict';
8
9    var hookCallback;
10
11    function hooks () {
12        return hookCallback.apply(null, arguments);
13    }
14
15    // This is done to register the method called with moment()
16    // without creating circular dependencies.
17    function setHookCallback (callback) {
18        hookCallback = callback;
19    }
20
21    function isArray(input) {
22        return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
23    }
24
25    function isObject(input) {
26        // IE8 will treat undefined and null as object if it wasn't for
27        // input != null
28        return input != null && Object.prototype.toString.call(input) === '[object Object]';
29    }
30
31    function isObjectEmpty(obj) {
32        if (Object.getOwnPropertyNames) {
33            return (Object.getOwnPropertyNames(obj).length === 0);
34        } else {
35            var k;
36            for (k in obj) {
37                if (obj.hasOwnProperty(k)) {
38                    return false;
39                }
40            }
41            return true;
42        }
43    }
44
45    function isUndefined(input) {
46        return input === void 0;
47    }
48
49    function isNumber(input) {
50        return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
51    }
52
53    function isDate(input) {
54        return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
55    }
56
57    function map(arr, fn) {
58        var res = [], i;
59        for (i = 0; i < arr.length; ++i) {
60            res.push(fn(arr[i], i));
61        }
62        return res;
63    }
64
65    function hasOwnProp(a, b) {
66        return Object.prototype.hasOwnProperty.call(a, b);
67    }
68
69    function extend(a, b) {
70        for (var i in b) {
71            if (hasOwnProp(b, i)) {
72                a[i] = b[i];
73            }
74        }
75
76        if (hasOwnProp(b, 'toString')) {
77            a.toString = b.toString;
78        }
79
80        if (hasOwnProp(b, 'valueOf')) {
81            a.valueOf = b.valueOf;
82        }
83
84        return a;
85    }
86
87    function createUTC (input, format, locale, strict) {
88        return createLocalOrUTC(input, format, locale, strict, true).utc();
89    }
90
91    function defaultParsingFlags() {
92        // We need to deep clone this object.
93        return {
94            empty           : false,
95            unusedTokens    : [],
96            unusedInput     : [],
97            overflow        : -2,
98            charsLeftOver   : 0,
99            nullInput       : false,
100            invalidMonth    : null,
101            invalidFormat   : false,
102            userInvalidated : false,
103            iso             : false,
104            parsedDateParts : [],
105            meridiem        : null,
106            rfc2822         : false,
107            weekdayMismatch : false
108        };
109    }
110
111    function getParsingFlags(m) {
112        if (m._pf == null) {
113            m._pf = defaultParsingFlags();
114        }
115        return m._pf;
116    }
117
118    var some;
119    if (Array.prototype.some) {
120        some = Array.prototype.some;
121    } else {
122        some = function (fun) {
123            var t = Object(this);
124            var len = t.length >>> 0;
125
126            for (var i = 0; i < len; i++) {
127                if (i in t && fun.call(this, t[i], i, t)) {
128                    return true;
129                }
130            }
131
132            return false;
133        };
134    }
135
136    function isValid(m) {
137        if (m._isValid == null) {
138            var flags = getParsingFlags(m);
139            var parsedParts = some.call(flags.parsedDateParts, function (i) {
140                return i != null;
141            });
142            var isNowValid = !isNaN(m._d.getTime()) &&
143                flags.overflow < 0 &&
144                !flags.empty &&
145                !flags.invalidMonth &&
146                !flags.invalidWeekday &&
147                !flags.weekdayMismatch &&
148                !flags.nullInput &&
149                !flags.invalidFormat &&
150                !flags.userInvalidated &&
151                (!flags.meridiem || (flags.meridiem && parsedParts));
152
153            if (m._strict) {
154                isNowValid = isNowValid &&
155                    flags.charsLeftOver === 0 &&
156                    flags.unusedTokens.length === 0 &&
157                    flags.bigHour === undefined;
158            }
159
160            if (Object.isFrozen == null || !Object.isFrozen(m)) {
161                m._isValid = isNowValid;
162            }
163            else {
164                return isNowValid;
165            }
166        }
167        return m._isValid;
168    }
169
170    function createInvalid (flags) {
171        var m = createUTC(NaN);
172        if (flags != null) {
173            extend(getParsingFlags(m), flags);
174        }
175        else {
176            getParsingFlags(m).userInvalidated = true;
177        }
178
179        return m;
180    }
181
182    // Plugins that add properties should also add the key here (null value),
183    // so we can properly clone ourselves.
184    var momentProperties = hooks.momentProperties = [];
185
186    function copyConfig(to, from) {
187        var i, prop, val;
188
189        if (!isUndefined(from._isAMomentObject)) {
190            to._isAMomentObject = from._isAMomentObject;
191        }
192        if (!isUndefined(from._i)) {
193            to._i = from._i;
194        }
195        if (!isUndefined(from._f)) {
196            to._f = from._f;
197        }
198        if (!isUndefined(from._l)) {
199            to._l = from._l;
200        }
201        if (!isUndefined(from._strict)) {
202            to._strict = from._strict;
203        }
204        if (!isUndefined(from._tzm)) {
205            to._tzm = from._tzm;
206        }
207        if (!isUndefined(from._isUTC)) {
208            to._isUTC = from._isUTC;
209        }
210        if (!isUndefined(from._offset)) {
211            to._offset = from._offset;
212        }
213        if (!isUndefined(from._pf)) {
214            to._pf = getParsingFlags(from);
215        }
216        if (!isUndefined(from._locale)) {
217            to._locale = from._locale;
218        }
219
220        if (momentProperties.length > 0) {
221            for (i = 0; i < momentProperties.length; i++) {
222                prop = momentProperties[i];
223                val = from[prop];
224                if (!isUndefined(val)) {
225                    to[prop] = val;
226                }
227            }
228        }
229
230        return to;
231    }
232
233    var updateInProgress = false;
vendor: 136,020 bytes, lines 234-4372
234
235    // Moment prototype object
236    function Moment(config) {
237        copyConfig(this, config);
238        this._d = new Date(config._d != null ? config._d.getTime() : NaN);
239        if (!this.isValid()) {
240            this._d = new Date(NaN);
241        }
242        // Prevent infinite loop in case updateOffset creates new moment
243        // objects.
244        if (updateInProgress === false) {
245            updateInProgress = true;
246            hooks.updateOffset(this);
247            updateInProgress = false;
248        }
249    }
250
251    function isMoment (obj) {
252        return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
253    }
254
255    function absFloor (number) {
256        if (number < 0) {
257            // -0 -> 0
258            return Math.ceil(number) || 0;
259        } else {
260            return Math.floor(number);
261        }
262    }
263
264    function toInt(argumentForCoercion) {
265        var coercedNumber = +argumentForCoercion,
266            value = 0;
267
268        if (coercedNumber !== 0 && isFinite(coercedNumber)) {
269            value = absFloor(coercedNumber);
270        }
271
272        return value;
273    }
274
275    // compare two arrays, return the number of differences
276    function compareArrays(array1, array2, dontConvert) {
277        var len = Math.min(array1.length, array2.length),
278            lengthDiff = Math.abs(array1.length - array2.length),
279            diffs = 0,
280            i;
281        for (i = 0; i < len; i++) {
282            if ((dontConvert && array1[i] !== array2[i]) ||
283                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
284                diffs++;
285            }
286        }
287        return diffs + lengthDiff;
288    }
289
290    function warn(msg) {
291        if (hooks.suppressDeprecationWarnings === false &&
292                (typeof console !==  'undefined') && console.warn) {
293            console.warn('Deprecation warning: ' + msg);
294        }
295    }
296
297    function deprecate(msg, fn) {
298        var firstTime = true;
299
300        return extend(function () {
301            if (hooks.deprecationHandler != null) {
302                hooks.deprecationHandler(null, msg);
303            }
304            if (firstTime) {
305                var args = [];
306                var arg;
307                for (var i = 0; i < arguments.length; i++) {
308                    arg = '';
309                    if (typeof arguments[i] === 'object') {
310                        arg += '\n[' + i + '] ';
311                        for (var key in arguments[0]) {
312                            arg += key + ': ' + arguments[0][key] + ', ';
313                        }
314                        arg = arg.slice(0, -2); // Remove trailing comma and space
315                    } else {
316                        arg = arguments[i];
317                    }
318                    args.push(arg);
319                }
320                warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
321                firstTime = false;
322            }
323            return fn.apply(this, arguments);
324        }, fn);
325    }
326
327    var deprecations = {};
328
329    function deprecateSimple(name, msg) {
330        if (hooks.deprecationHandler != null) {
331            hooks.deprecationHandler(name, msg);
332        }
333        if (!deprecations[name]) {
334            warn(msg);
335            deprecations[name] = true;
336        }
337    }
338
339    hooks.suppressDeprecationWarnings = false;
340    hooks.deprecationHandler = null;
341
342    function isFunction(input) {
343        return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
344    }
345
346    function set (config) {
347        var prop, i;
348        for (i in config) {
349            prop = config[i];
350            if (isFunction(prop)) {
351                this[i] = prop;
352            } else {
353                this['_' + i] = prop;
354            }
355        }
356        this._config = config;
357        // Lenient ordinal parsing accepts just a number in addition to
358        // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
359        // TODO: Remove "ordinalParse" fallback in next major release.
360        this._dayOfMonthOrdinalParseLenient = new RegExp(
361            (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
362                '|' + (/\d{1,2}/).source);
363    }
364
365    function mergeConfigs(parentConfig, childConfig) {
366        var res = extend({}, parentConfig), prop;
367        for (prop in childConfig) {
368            if (hasOwnProp(childConfig, prop)) {
369                if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
370                    res[prop] = {};
371                    extend(res[prop], parentConfig[prop]);
372                    extend(res[prop], childConfig[prop]);
373                } else if (childConfig[prop] != null) {
374                    res[prop] = childConfig[prop];
375                } else {
376                    delete res[prop];
377                }
378            }
379        }
380        for (prop in parentConfig) {
381            if (hasOwnProp(parentConfig, prop) &&
382                    !hasOwnProp(childConfig, prop) &&
383                    isObject(parentConfig[prop])) {
384                // make sure changes to properties don't modify parent config
385                res[prop] = extend({}, res[prop]);
386            }
387        }
388        return res;
389    }
390
391    function Locale(config) {
392        if (config != null) {
393            this.set(config);
394        }
395    }
396
397    var keys;
398
399    if (Object.keys) {
400        keys = Object.keys;
401    } else {
402        keys = function (obj) {
403            var i, res = [];
404            for (i in obj) {
405                if (hasOwnProp(obj, i)) {
406                    res.push(i);
407                }
408            }
409            return res;
410        };
411    }
412
413    var defaultCalendar = {
414        sameDay : '[Today at] LT',
415        nextDay : '[Tomorrow at] LT',
416        nextWeek : 'dddd [at] LT',
417        lastDay : '[Yesterday at] LT',
418        lastWeek : '[Last] dddd [at] LT',
419        sameElse : 'L'
420    };
421
422    function calendar (key, mom, now) {
423        var output = this._calendar[key] || this._calendar['sameElse'];
424        return isFunction(output) ? output.call(mom, now) : output;
425    }
426
427    var defaultLongDateFormat = {
428        LTS  : 'h:mm:ss A',
429        LT   : 'h:mm A',
430        L    : 'MM/DD/YYYY',
431        LL   : 'MMMM D, YYYY',
432        LLL  : 'MMMM D, YYYY h:mm A',
433        LLLL : 'dddd, MMMM D, YYYY h:mm A'
434    };
435
436    function longDateFormat (key) {
437        var format = this._longDateFormat[key],
438            formatUpper = this._longDateFormat[key.toUpperCase()];
439
440        if (format || !formatUpper) {
441            return format;
442        }
443
444        this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
445            return val.slice(1);
446        });
447
448        return this._longDateFormat[key];
449    }
450
451    var defaultInvalidDate = 'Invalid date';
452
453    function invalidDate () {
454        return this._invalidDate;
455    }
456
457    var defaultOrdinal = '%d';
458    var defaultDayOfMonthOrdinalParse = /\d{1,2}/;
459
460    function ordinal (number) {
461        return this._ordinal.replace('%d', number);
462    }
463
464    var defaultRelativeTime = {
465        future : 'in %s',
466        past   : '%s ago',
467        s  : 'a few seconds',
468        ss : '%d seconds',
469        m  : 'a minute',
470        mm : '%d minutes',
471        h  : 'an hour',
472        hh : '%d hours',
473        d  : 'a day',
474        dd : '%d days',
475        M  : 'a month',
476        MM : '%d months',
477        y  : 'a year',
478        yy : '%d years'
479    };
480
481    function relativeTime (number, withoutSuffix, string, isFuture) {
482        var output = this._relativeTime[string];
483        return (isFunction(output)) ?
484            output(number, withoutSuffix, string, isFuture) :
485            output.replace(/%d/i, number);
486    }
487
488    function pastFuture (diff, output) {
489        var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
490        return isFunction(format) ? format(output) : format.replace(/%s/i, output);
491    }
492
493    var aliases = {};
494
495    function addUnitAlias (unit, shorthand) {
496        var lowerCase = unit.toLowerCase();
497        aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
498    }
499
500    function normalizeUnits(units) {
501        return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
502    }
503
504    function normalizeObjectUnits(inputObject) {
505        var normalizedInput = {},
506            normalizedProp,
507            prop;
508
509        for (prop in inputObject) {
510            if (hasOwnProp(inputObject, prop)) {
511                normalizedProp = normalizeUnits(prop);
512                if (normalizedProp) {
513                    normalizedInput[normalizedProp] = inputObject[prop];
514                }
515            }
516        }
517
518        return normalizedInput;
519    }
520
521    var priorities = {};
522
523    function addUnitPriority(unit, priority) {
524        priorities[unit] = priority;
525    }
526
527    function getPrioritizedUnits(unitsObj) {
528        var units = [];
529        for (var u in unitsObj) {
530            units.push({unit: u, priority: priorities[u]});
531        }
532        units.sort(function (a, b) {
533            return a.priority - b.priority;
534        });
535        return units;
536    }
537
538    function zeroFill(number, targetLength, forceSign) {
539        var absNumber = '' + Math.abs(number),
540            zerosToFill = targetLength - absNumber.length,
541            sign = number >= 0;
542        return (sign ? (forceSign ? '+' : '') : '-') +
543            Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
544    }
545
546    var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;
547
548    var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;
549
550    var formatFunctions = {};
551
552    var formatTokenFunctions = {};
553
554    // token:    'M'
555    // padded:   ['MM', 2]
556    // ordinal:  'Mo'
557    // callback: function () { this.month() + 1 }
558    function addFormatToken (token, padded, ordinal, callback) {
559        var func = callback;
560        if (typeof callback === 'string') {
561            func = function () {
562                return this[callback]();
563            };
564        }
565        if (token) {
566            formatTokenFunctions[token] = func;
567        }
568        if (padded) {
569            formatTokenFunctions[padded[0]] = function () {
570                return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
571            };
572        }
573        if (ordinal) {
574            formatTokenFunctions[ordinal] = function () {
575                return this.localeData().ordinal(func.apply(this, arguments), token);
576            };
577        }
578    }
579
580    function removeFormattingTokens(input) {
581        if (input.match(/\[[\s\S]/)) {
582            return input.replace(/^\[|\]$/g, '');
583        }
584        return input.replace(/\\/g, '');
585    }
586
587    function makeFormatFunction(format) {
588        var array = format.match(formattingTokens), i, length;
589
590        for (i = 0, length = array.length; i < length; i++) {
591            if (formatTokenFunctions[array[i]]) {
592                array[i] = formatTokenFunctions[array[i]];
593            } else {
594                array[i] = removeFormattingTokens(array[i]);
595            }
596        }
597
598        return function (mom) {
599            var output = '', i;
600            for (i = 0; i < length; i++) {
601                output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
602            }
603            return output;
604        };
605    }
606
607    // format date using native date object
608    function formatMoment(m, format) {
609        if (!m.isValid()) {
610            return m.localeData().invalidDate();
611        }
612
613        format = expandFormat(format, m.localeData());
614        formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);
615
616        return formatFunctions[format](m);
617    }
618
619    function expandFormat(format, locale) {
620        var i = 5;
621
622        function replaceLongDateFormatTokens(input) {
623            return locale.longDateFormat(input) || input;
624        }
625
626        localFormattingTokens.lastIndex = 0;
627        while (i >= 0 && localFormattingTokens.test(format)) {
628            format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
629            localFormattingTokens.lastIndex = 0;
630            i -= 1;
631        }
632
633        return format;
634    }
635
636    var match1         = /\d/;            //       0 - 9
637    var match2         = /\d\d/;          //      00 - 99
638    var match3         = /\d{3}/;         //     000 - 999
639    var match4         = /\d{4}/;         //    0000 - 9999
640    var match6         = /[+-]?\d{6}/;    // -999999 - 999999
641    var match1to2      = /\d\d?/;         //       0 - 99
642    var match3to4      = /\d\d\d\d?/;     //     999 - 9999
643    var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
644    var match1to3      = /\d{1,3}/;       //       0 - 999
645    var match1to4      = /\d{1,4}/;       //       0 - 9999
646    var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999
647
648    var matchUnsigned  = /\d+/;           //       0 - inf
649    var matchSigned    = /[+-]?\d+/;      //    -inf - inf
650
651    var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
652    var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z
653
654    var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123
655
656    // any word (or two) characters or numbers including two/three word month in arabic.
657    // includes scottish gaelic two word and hyphenated months
658    var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;
659
660    var regexes = {};
661
662    function addRegexToken (token, regex, strictRegex) {
663        regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
664            return (isStrict && strictRegex) ? strictRegex : regex;
665        };
666    }
667
668    function getParseRegexForToken (token, config) {
669        if (!hasOwnProp(regexes, token)) {
670            return new RegExp(unescapeFormat(token));
671        }
672
673        return regexes[token](config._strict, config._locale);
674    }
675
676    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
677    function unescapeFormat(s) {
678        return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
679            return p1 || p2 || p3 || p4;
680        }));
681    }
682
683    function regexEscape(s) {
684        return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
685    }
686
687    var tokens = {};
688
689    function addParseToken (token, callback) {
690        var i, func = callback;
691        if (typeof token === 'string') {
692            token = [token];
693        }
694        if (isNumber(callback)) {
695            func = function (input, array) {
696                array[callback] = toInt(input);
697            };
698        }
699        for (i = 0; i < token.length; i++) {
700            tokens[token[i]] = func;
701        }
702    }
703
704    function addWeekParseToken (token, callback) {
705        addParseToken(token, function (input, array, config, token) {
706            config._w = config._w || {};
707            callback(input, config._w, config, token);
708        });
709    }
710
711    function addTimeToArrayFromToken(token, input, config) {
712        if (input != null && hasOwnProp(tokens, token)) {
713            tokens[token](input, config._a, config, token);
714        }
715    }
716
717    var YEAR = 0;
718    var MONTH = 1;
719    var DATE = 2;
720    var HOUR = 3;
721    var MINUTE = 4;
722    var SECOND = 5;
723    var MILLISECOND = 6;
724    var WEEK = 7;
725    var WEEKDAY = 8;
726
727    // FORMATTING
728
729    addFormatToken('Y', 0, 0, function () {
730        var y = this.year();
731        return y <= 9999 ? '' + y : '+' + y;
732    });
733
734    addFormatToken(0, ['YY', 2], 0, function () {
735        return this.year() % 100;
736    });
737
738    addFormatToken(0, ['YYYY',   4],       0, 'year');
739    addFormatToken(0, ['YYYYY',  5],       0, 'year');
740    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
741
742    // ALIASES
743
744    addUnitAlias('year', 'y');
745
746    // PRIORITIES
747
748    addUnitPriority('year', 1);
749
750    // PARSING
751
752    addRegexToken('Y',      matchSigned);
753    addRegexToken('YY',     match1to2, match2);
754    addRegexToken('YYYY',   match1to4, match4);
755    addRegexToken('YYYYY',  match1to6, match6);
756    addRegexToken('YYYYYY', match1to6, match6);
757
758    addParseToken(['YYYYY', 'YYYYYY'], YEAR);
759    addParseToken('YYYY', function (input, array) {
760        array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
761    });
762    addParseToken('YY', function (input, array) {
763        array[YEAR] = hooks.parseTwoDigitYear(input);
764    });
765    addParseToken('Y', function (input, array) {
766        array[YEAR] = parseInt(input, 10);
767    });
768
769    // HELPERS
770
771    function daysInYear(year) {
772        return isLeapYear(year) ? 366 : 365;
773    }
774
775    function isLeapYear(year) {
776        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
777    }
778
779    // HOOKS
780
781    hooks.parseTwoDigitYear = function (input) {
782        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
783    };
784
785    // MOMENTS
786
787    var getSetYear = makeGetSet('FullYear', true);
788
789    function getIsLeapYear () {
790        return isLeapYear(this.year());
791    }
792
793    function makeGetSet (unit, keepTime) {
794        return function (value) {
795            if (value != null) {
796                set$1(this, unit, value);
797                hooks.updateOffset(this, keepTime);
798                return this;
799            } else {
800                return get(this, unit);
801            }
802        };
803    }
804
805    function get (mom, unit) {
806        return mom.isValid() ?
807            mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
808    }
809
810    function set$1 (mom, unit, value) {
811        if (mom.isValid() && !isNaN(value)) {
812            if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
813                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
814            }
815            else {
816                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
817            }
818        }
819    }
820
821    // MOMENTS
822
823    function stringGet (units) {
824        units = normalizeUnits(units);
825        if (isFunction(this[units])) {
826            return this[units]();
827        }
828        return this;
829    }
830
831
832    function stringSet (units, value) {
833        if (typeof units === 'object') {
834            units = normalizeObjectUnits(units);
835            var prioritized = getPrioritizedUnits(units);
836            for (var i = 0; i < prioritized.length; i++) {
837                this[prioritized[i].unit](units[prioritized[i].unit]);
838            }
839        } else {
840            units = normalizeUnits(units);
841            if (isFunction(this[units])) {
842                return this[units](value);
843            }
844        }
845        return this;
846    }
847
848    function mod(n, x) {
849        return ((n % x) + x) % x;
850    }
851
852    var indexOf;
853
854    if (Array.prototype.indexOf) {
855        indexOf = Array.prototype.indexOf;
856    } else {
857        indexOf = function (o) {
858            // I know
859            var i;
860            for (i = 0; i < this.length; ++i) {
861                if (this[i] === o) {
862                    return i;
863                }
864            }
865            return -1;
866        };
867    }
868
869    function daysInMonth(year, month) {
870        if (isNaN(year) || isNaN(month)) {
871            return NaN;
872        }
873        var modMonth = mod(month, 12);
874        year += (month - modMonth) / 12;
875        return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
876    }
877
878    // FORMATTING
879
880    addFormatToken('M', ['MM', 2], 'Mo', function () {
881        return this.month() + 1;
882    });
883
884    addFormatToken('MMM', 0, 0, function (format) {
885        return this.localeData().monthsShort(this, format);
886    });
887
888    addFormatToken('MMMM', 0, 0, function (format) {
889        return this.localeData().months(this, format);
890    });
891
892    // ALIASES
893
894    addUnitAlias('month', 'M');
895
896    // PRIORITY
897
898    addUnitPriority('month', 8);
899
900    // PARSING
901
902    addRegexToken('M',    match1to2);
903    addRegexToken('MM',   match1to2, match2);
904    addRegexToken('MMM',  function (isStrict, locale) {
905        return locale.monthsShortRegex(isStrict);
906    });
907    addRegexToken('MMMM', function (isStrict, locale) {
908        return locale.monthsRegex(isStrict);
909    });
910
911    addParseToken(['M', 'MM'], function (input, array) {
912        array[MONTH] = toInt(input) - 1;
913    });
914
915    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
916        var month = config._locale.monthsParse(input, token, config._strict);
917        // if we didn't find a month name, mark the date as invalid.
918        if (month != null) {
919            array[MONTH] = month;
920        } else {
921            getParsingFlags(config).invalidMonth = input;
922        }
923    });
924
925    // LOCALES
926
927    var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
928    var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
929    function localeMonths (m, format) {
930        if (!m) {
931            return isArray(this._months) ? this._months :
932                this._months['standalone'];
933        }
934        return isArray(this._months) ? this._months[m.month()] :
935            this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
936    }
937
938    var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
939    function localeMonthsShort (m, format) {
940        if (!m) {
941            return isArray(this._monthsShort) ? this._monthsShort :
942                this._monthsShort['standalone'];
943        }
944        return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
945            this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
946    }
947
948    function handleStrictParse(monthName, format, strict) {
949        var i, ii, mom, llc = monthName.toLocaleLowerCase();
950        if (!this._monthsParse) {
951            // this is not used
952            this._monthsParse = [];
953            this._longMonthsParse = [];
954            this._shortMonthsParse = [];
955            for (i = 0; i < 12; ++i) {
956                mom = createUTC([2000, i]);
957                this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
958                this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
959            }
960        }
961
962        if (strict) {
963            if (format === 'MMM') {
964                ii = indexOf.call(this._shortMonthsParse, llc);
965                return ii !== -1 ? ii : null;
966            } else {
967                ii = indexOf.call(this._longMonthsParse, llc);
968                return ii !== -1 ? ii : null;
969            }
970        } else {
971            if (format === 'MMM') {
972                ii = indexOf.call(this._shortMonthsParse, llc);
973                if (ii !== -1) {
974                    return ii;
975                }
976                ii = indexOf.call(this._longMonthsParse, llc);
977                return ii !== -1 ? ii : null;
978            } else {
979                ii = indexOf.call(this._longMonthsParse, llc);
980                if (ii !== -1) {
981                    return ii;
982                }
983                ii = indexOf.call(this._shortMonthsParse, llc);
984                return ii !== -1 ? ii : null;
985            }
986        }
987    }
988
989    function localeMonthsParse (monthName, format, strict) {
990        var i, mom, regex;
991
992        if (this._monthsParseExact) {
993            return handleStrictParse.call(this, monthName, format, strict);
994        }
995
996        if (!this._monthsParse) {
997            this._monthsParse = [];
998            this._longMonthsParse = [];
999            this._shortMonthsParse = [];
1000        }
1001
1002        // TODO: add sorting
1003        // Sorting makes sure if one month (or abbr) is a prefix of another
1004        // see sorting in computeMonthsParse
1005        for (i = 0; i < 12; i++) {
1006            // make the regex if we don't have it already
1007            mom = createUTC([2000, i]);
1008            if (strict && !this._longMonthsParse[i]) {
1009                this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
1010                this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
1011            }
1012            if (!strict && !this._monthsParse[i]) {
1013                regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
1014                this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
1015            }
1016            // test the regex
1017            if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
1018                return i;
1019            } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
1020                return i;
1021            } else if (!strict && this._monthsParse[i].test(monthName)) {
1022                return i;
1023            }
1024        }
1025    }
1026
1027    // MOMENTS
1028
1029    function setMonth (mom, value) {
1030        var dayOfMonth;
1031
1032        if (!mom.isValid()) {
1033            // No op
1034            return mom;
1035        }
1036
1037        if (typeof value === 'string') {
1038            if (/^\d+$/.test(value)) {
1039                value = toInt(value);
1040            } else {
1041                value = mom.localeData().monthsParse(value);
1042                // TODO: Another silent failure?
1043                if (!isNumber(value)) {
1044                    return mom;
1045                }
1046            }
1047        }
1048
1049        dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
1050        mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
1051        return mom;
1052    }
1053
1054    function getSetMonth (value) {
1055        if (value != null) {
1056            setMonth(this, value);
1057            hooks.updateOffset(this, true);
1058            return this;
1059        } else {
1060            return get(this, 'Month');
1061        }
1062    }
1063
1064    function getDaysInMonth () {
1065        return daysInMonth(this.year(), this.month());
1066    }
1067
1068    var defaultMonthsShortRegex = matchWord;
1069    function monthsShortRegex (isStrict) {
1070        if (this._monthsParseExact) {
1071            if (!hasOwnProp(this, '_monthsRegex')) {
1072                computeMonthsParse.call(this);
1073            }
1074            if (isStrict) {
1075                return this._monthsShortStrictRegex;
1076            } else {
1077                return this._monthsShortRegex;
1078            }
1079        } else {
1080            if (!hasOwnProp(this, '_monthsShortRegex')) {
1081                this._monthsShortRegex = defaultMonthsShortRegex;
1082            }
1083            return this._monthsShortStrictRegex && isStrict ?
1084                this._monthsShortStrictRegex : this._monthsShortRegex;
1085        }
1086    }
1087
1088    var defaultMonthsRegex = matchWord;
1089    function monthsRegex (isStrict) {
1090        if (this._monthsParseExact) {
1091            if (!hasOwnProp(this, '_monthsRegex')) {
1092                computeMonthsParse.call(this);
1093            }
1094            if (isStrict) {
1095                return this._monthsStrictRegex;
1096            } else {
1097                return this._monthsRegex;
1098            }
1099        } else {
1100            if (!hasOwnProp(this, '_monthsRegex')) {
1101                this._monthsRegex = defaultMonthsRegex;
1102            }
1103            return this._monthsStrictRegex && isStrict ?
1104                this._monthsStrictRegex : this._monthsRegex;
1105        }
1106    }
1107
1108    function computeMonthsParse () {
1109        function cmpLenRev(a, b) {
1110            return b.length - a.length;
1111        }
1112
1113        var shortPieces = [], longPieces = [], mixedPieces = [],
1114            i, mom;
1115        for (i = 0; i < 12; i++) {
1116            // make the regex if we don't have it already
1117            mom = createUTC([2000, i]);
1118            shortPieces.push(this.monthsShort(mom, ''));
1119            longPieces.push(this.months(mom, ''));
1120            mixedPieces.push(this.months(mom, ''));
1121            mixedPieces.push(this.monthsShort(mom, ''));
1122        }
1123        // Sorting makes sure if one month (or abbr) is a prefix of another it
1124        // will match the longer piece.
1125        shortPieces.sort(cmpLenRev);
1126        longPieces.sort(cmpLenRev);
1127        mixedPieces.sort(cmpLenRev);
1128        for (i = 0; i < 12; i++) {
1129            shortPieces[i] = regexEscape(shortPieces[i]);
1130            longPieces[i] = regexEscape(longPieces[i]);
1131        }
1132        for (i = 0; i < 24; i++) {
1133            mixedPieces[i] = regexEscape(mixedPieces[i]);
1134        }
1135
1136        this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
1137        this._monthsShortRegex = this._monthsRegex;
1138        this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
1139        this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
1140    }
1141
1142    function createDate (y, m, d, h, M, s, ms) {
1143        // can't just apply() to create a date:
1144        // https://stackoverflow.com/q/181348
1145        var date;
1146        // the date constructor remaps years 0-99 to 1900-1999
1147        if (y < 100 && y >= 0) {
1148            // preserve leap years using a full 400 year cycle, then reset
1149            date = new Date(y + 400, m, d, h, M, s, ms);
1150            if (isFinite(date.getFullYear())) {
1151                date.setFullYear(y);
1152            }
1153        } else {
1154            date = new Date(y, m, d, h, M, s, ms);
1155        }
1156
1157        return date;
1158    }
1159
1160    function createUTCDate (y) {
1161        var date;
1162        // the Date.UTC function remaps years 0-99 to 1900-1999
1163        if (y < 100 && y >= 0) {
1164            var args = Array.prototype.slice.call(arguments);
1165            // preserve leap years using a full 400 year cycle, then reset
1166            args[0] = y + 400;
1167            date = new Date(Date.UTC.apply(null, args));
1168            if (isFinite(date.getUTCFullYear())) {
1169                date.setUTCFullYear(y);
1170            }
1171        } else {
1172            date = new Date(Date.UTC.apply(null, arguments));
1173        }
1174
1175        return date;
1176    }
1177
1178    // start-of-first-week - start-of-year
1179    function firstWeekOffset(year, dow, doy) {
1180        var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
1181            fwd = 7 + dow - doy,
1182            // first-week day local weekday -- which local weekday is fwd
1183            fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
1184
1185        return -fwdlw + fwd - 1;
1186    }
1187
1188    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
1189    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
1190        var localWeekday = (7 + weekday - dow) % 7,
1191            weekOffset = firstWeekOffset(year, dow, doy),
1192            dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
1193            resYear, resDayOfYear;
1194
1195        if (dayOfYear <= 0) {
1196            resYear = year - 1;
1197            resDayOfYear = daysInYear(resYear) + dayOfYear;
1198        } else if (dayOfYear > daysInYear(year)) {
1199            resYear = year + 1;
1200            resDayOfYear = dayOfYear - daysInYear(year);
1201        } else {
1202            resYear = year;
1203            resDayOfYear = dayOfYear;
1204        }
1205
1206        return {
1207            year: resYear,
1208            dayOfYear: resDayOfYear
1209        };
1210    }
1211
1212    function weekOfYear(mom, dow, doy) {
1213        var weekOffset = firstWeekOffset(mom.year(), dow, doy),
1214            week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
1215            resWeek, resYear;
1216
1217        if (week < 1) {
1218            resYear = mom.year() - 1;
1219            resWeek = week + weeksInYear(resYear, dow, doy);
1220        } else if (week > weeksInYear(mom.year(), dow, doy)) {
1221            resWeek = week - weeksInYear(mom.year(), dow, doy);
1222            resYear = mom.year() + 1;
1223        } else {
1224            resYear = mom.year();
1225            resWeek = week;
1226        }
1227
1228        return {
1229            week: resWeek,
1230            year: resYear
1231        };
1232    }
1233
1234    function weeksInYear(year, dow, doy) {
1235        var weekOffset = firstWeekOffset(year, dow, doy),
1236            weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
1237        return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
1238    }
1239
1240    // FORMATTING
1241
1242    addFormatToken('w', ['ww', 2], 'wo', 'week');
1243    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
1244
1245    // ALIASES
1246
1247    addUnitAlias('week', 'w');
1248    addUnitAlias('isoWeek', 'W');
1249
1250    // PRIORITIES
1251
1252    addUnitPriority('week', 5);
1253    addUnitPriority('isoWeek', 5);
1254
1255    // PARSING
1256
1257    addRegexToken('w',  match1to2);
1258    addRegexToken('ww', match1to2, match2);
1259    addRegexToken('W',  match1to2);
1260    addRegexToken('WW', match1to2, match2);
1261
1262    addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
1263        week[token.substr(0, 1)] = toInt(input);
1264    });
1265
1266    // HELPERS
1267
1268    // LOCALES
1269
1270    function localeWeek (mom) {
1271        return weekOfYear(mom, this._week.dow, this._week.doy).week;
1272    }
1273
1274    var defaultLocaleWeek = {
1275        dow : 0, // Sunday is the first day of the week.
1276        doy : 6  // The week that contains Jan 6th is the first week of the year.
1277    };
1278
1279    function localeFirstDayOfWeek () {
1280        return this._week.dow;
1281    }
1282
1283    function localeFirstDayOfYear () {
1284        return this._week.doy;
1285    }
1286
1287    // MOMENTS
1288
1289    function getSetWeek (input) {
1290        var week = this.localeData().week(this);
1291        return input == null ? week : this.add((input - week) * 7, 'd');
1292    }
1293
1294    function getSetISOWeek (input) {
1295        var week = weekOfYear(this, 1, 4).week;
1296        return input == null ? week : this.add((input - week) * 7, 'd');
1297    }
1298
1299    // FORMATTING
1300
1301    addFormatToken('d', 0, 'do', 'day');
1302
1303    addFormatToken('dd', 0, 0, function (format) {
1304        return this.localeData().weekdaysMin(this, format);
1305    });
1306
1307    addFormatToken('ddd', 0, 0, function (format) {
1308        return this.localeData().weekdaysShort(this, format);
1309    });
1310
1311    addFormatToken('dddd', 0, 0, function (format) {
1312        return this.localeData().weekdays(this, format);
1313    });
1314
1315    addFormatToken('e', 0, 0, 'weekday');
1316    addFormatToken('E', 0, 0, 'isoWeekday');
1317
1318    // ALIASES
1319
1320    addUnitAlias('day', 'd');
1321    addUnitAlias('weekday', 'e');
1322    addUnitAlias('isoWeekday', 'E');
1323
1324    // PRIORITY
1325    addUnitPriority('day', 11);
1326    addUnitPriority('weekday', 11);
1327    addUnitPriority('isoWeekday', 11);
1328
1329    // PARSING
1330
1331    addRegexToken('d',    match1to2);
1332    addRegexToken('e',    match1to2);
1333    addRegexToken('E',    match1to2);
1334    addRegexToken('dd',   function (isStrict, locale) {
1335        return locale.weekdaysMinRegex(isStrict);
1336    });
1337    addRegexToken('ddd',   function (isStrict, locale) {
1338        return locale.weekdaysShortRegex(isStrict);
1339    });
1340    addRegexToken('dddd',   function (isStrict, locale) {
1341        return locale.weekdaysRegex(isStrict);
1342    });
1343
1344    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
1345        var weekday = config._locale.weekdaysParse(input, token, config._strict);
1346        // if we didn't get a weekday name, mark the date as invalid
1347        if (weekday != null) {
1348            week.d = weekday;
1349        } else {
1350            getParsingFlags(config).invalidWeekday = input;
1351        }
1352    });
1353
1354    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
1355        week[token] = toInt(input);
1356    });
1357
1358    // HELPERS
1359
1360    function parseWeekday(input, locale) {
1361        if (typeof input !== 'string') {
1362            return input;
1363        }
1364
1365        if (!isNaN(input)) {
1366            return parseInt(input, 10);
1367        }
1368
1369        input = locale.weekdaysParse(input);
1370        if (typeof input === 'number') {
1371            return input;
1372        }
1373
1374        return null;
1375    }
1376
1377    function parseIsoWeekday(input, locale) {
1378        if (typeof input === 'string') {
1379            return locale.weekdaysParse(input) % 7 || 7;
1380        }
1381        return isNaN(input) ? null : input;
1382    }
1383
1384    // LOCALES
1385    function shiftWeekdays (ws, n) {
1386        return ws.slice(n, 7).concat(ws.slice(0, n));
1387    }
1388
1389    var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
1390    function localeWeekdays (m, format) {
1391        var weekdays = isArray(this._weekdays) ? this._weekdays :
1392            this._weekdays[(m && m !== true && this._weekdays.isFormat.test(format)) ? 'format' : 'standalone'];
1393        return (m === true) ? shiftWeekdays(weekdays, this._week.dow)
1394            : (m) ? weekdays[m.day()] : weekdays;
1395    }
1396
1397    var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
1398    function localeWeekdaysShort (m) {
1399        return (m === true) ? shiftWeekdays(this._weekdaysShort, this._week.dow)
1400            : (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
1401    }
1402
1403    var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
1404    function localeWeekdaysMin (m) {
1405        return (m === true) ? shiftWeekdays(this._weekdaysMin, this._week.dow)
1406            : (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
1407    }
1408
1409    function handleStrictParse$1(weekdayName, format, strict) {
1410        var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
1411        if (!this._weekdaysParse) {
1412            this._weekdaysParse = [];
1413            this._shortWeekdaysParse = [];
1414            this._minWeekdaysParse = [];
1415
1416            for (i = 0; i < 7; ++i) {
1417                mom = createUTC([2000, 1]).day(i);
1418                this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
1419                this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
1420                this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
1421            }
1422        }
1423
1424        if (strict) {
1425            if (format === 'dddd') {
1426                ii = indexOf.call(this._weekdaysParse, llc);
1427                return ii !== -1 ? ii : null;
1428            } else if (format === 'ddd') {
1429                ii = indexOf.call(this._shortWeekdaysParse, llc);
1430                return ii !== -1 ? ii : null;
1431            } else {
1432                ii = indexOf.call(this._minWeekdaysParse, llc);
1433                return ii !== -1 ? ii : null;
1434            }
1435        } else {
1436            if (format === 'dddd') {
1437                ii = indexOf.call(this._weekdaysParse, llc);
1438                if (ii !== -1) {
1439                    return ii;
1440                }
1441                ii = indexOf.call(this._shortWeekdaysParse, llc);
1442                if (ii !== -1) {
1443                    return ii;
1444                }
1445                ii = indexOf.call(this._minWeekdaysParse, llc);
1446                return ii !== -1 ? ii : null;
1447            } else if (format === 'ddd') {
1448                ii = indexOf.call(this._shortWeekdaysParse, llc);
1449                if (ii !== -1) {
1450                    return ii;
1451                }
1452                ii = indexOf.call(this._weekdaysParse, llc);
1453                if (ii !== -1) {
1454                    return ii;
1455                }
1456                ii = indexOf.call(this._minWeekdaysParse, llc);
1457                return ii !== -1 ? ii : null;
1458            } else {
1459                ii = indexOf.call(this._minWeekdaysParse, llc);
1460                if (ii !== -1) {
1461                    return ii;
1462                }
1463                ii = indexOf.call(this._weekdaysParse, llc);
1464                if (ii !== -1) {
1465                    return ii;
1466                }
1467                ii = indexOf.call(this._shortWeekdaysParse, llc);
1468                return ii !== -1 ? ii : null;
1469            }
1470        }
1471    }
1472
1473    function localeWeekdaysParse (weekdayName, format, strict) {
1474        var i, mom, regex;
1475
1476        if (this._weekdaysParseExact) {
1477            return handleStrictParse$1.call(this, weekdayName, format, strict);
1478        }
1479
1480        if (!this._weekdaysParse) {
1481            this._weekdaysParse = [];
1482            this._minWeekdaysParse = [];
1483            this._shortWeekdaysParse = [];
1484            this._fullWeekdaysParse = [];
1485        }
1486
1487        for (i = 0; i < 7; i++) {
1488            // make the regex if we don't have it already
1489
1490            mom = createUTC([2000, 1]).day(i);
1491            if (strict && !this._fullWeekdaysParse[i]) {
1492                this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\\.?') + '$', 'i');
1493                this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$', 'i');
1494                this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$', 'i');
1495            }
1496            if (!this._weekdaysParse[i]) {
1497                regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
1498                this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
1499            }
1500            // test the regex
1501            if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
1502                return i;
1503            } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
1504                return i;
1505            } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
1506                return i;
1507            } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
1508                return i;
1509            }
1510        }
1511    }
1512
1513    // MOMENTS
1514
1515    function getSetDayOfWeek (input) {
1516        if (!this.isValid()) {
1517            return input != null ? this : NaN;
1518        }
1519        var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
1520        if (input != null) {
1521            input = parseWeekday(input, this.localeData());
1522            return this.add(input - day, 'd');
1523        } else {
1524            return day;
1525        }
1526    }
1527
1528    function getSetLocaleDayOfWeek (input) {
1529        if (!this.isValid()) {
1530            return input != null ? this : NaN;
1531        }
1532        var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
1533        return input == null ? weekday : this.add(input - weekday, 'd');
1534    }
1535
1536    function getSetISODayOfWeek (input) {
1537        if (!this.isValid()) {
1538            return input != null ? this : NaN;
1539        }
1540
1541        // behaves the same as moment#day except
1542        // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
1543        // as a setter, sunday should belong to the previous week.
1544
1545        if (input != null) {
1546            var weekday = parseIsoWeekday(input, this.localeData());
1547            return this.day(this.day() % 7 ? weekday : weekday - 7);
1548        } else {
1549            return this.day() || 7;
1550        }
1551    }
1552
1553    var defaultWeekdaysRegex = matchWord;
1554    function weekdaysRegex (isStrict) {
1555        if (this._weekdaysParseExact) {
1556            if (!hasOwnProp(this, '_weekdaysRegex')) {
1557                computeWeekdaysParse.call(this);
1558            }
1559            if (isStrict) {
1560                return this._weekdaysStrictRegex;
1561            } else {
1562                return this._weekdaysRegex;
1563            }
1564        } else {
1565            if (!hasOwnProp(this, '_weekdaysRegex')) {
1566                this._weekdaysRegex = defaultWeekdaysRegex;
1567            }
1568            return this._weekdaysStrictRegex && isStrict ?
1569                this._weekdaysStrictRegex : this._weekdaysRegex;
1570        }
1571    }
1572
1573    var defaultWeekdaysShortRegex = matchWord;
1574    function weekdaysShortRegex (isStrict) {
1575        if (this._weekdaysParseExact) {
1576            if (!hasOwnProp(this, '_weekdaysRegex')) {
1577                computeWeekdaysParse.call(this);
1578            }
1579            if (isStrict) {
1580                return this._weekdaysShortStrictRegex;
1581            } else {
1582                return this._weekdaysShortRegex;
1583            }
1584        } else {
1585            if (!hasOwnProp(this, '_weekdaysShortRegex')) {
1586                this._weekdaysShortRegex = defaultWeekdaysShortRegex;
1587            }
1588            return this._weekdaysShortStrictRegex && isStrict ?
1589                this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
1590        }
1591    }
1592
1593    var defaultWeekdaysMinRegex = matchWord;
1594    function weekdaysMinRegex (isStrict) {
1595        if (this._weekdaysParseExact) {
1596            if (!hasOwnProp(this, '_weekdaysRegex')) {
1597                computeWeekdaysParse.call(this);
1598            }
1599            if (isStrict) {
1600                return this._weekdaysMinStrictRegex;
1601            } else {
1602                return this._weekdaysMinRegex;
1603            }
1604        } else {
1605            if (!hasOwnProp(this, '_weekdaysMinRegex')) {
1606                this._weekdaysMinRegex = defaultWeekdaysMinRegex;
1607            }
1608            return this._weekdaysMinStrictRegex && isStrict ?
1609                this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
1610        }
1611    }
1612
1613
1614    function computeWeekdaysParse () {
1615        function cmpLenRev(a, b) {
1616            return b.length - a.length;
1617        }
1618
1619        var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
1620            i, mom, minp, shortp, longp;
1621        for (i = 0; i < 7; i++) {
1622            // make the regex if we don't have it already
1623            mom = createUTC([2000, 1]).day(i);
1624            minp = this.weekdaysMin(mom, '');
1625            shortp = this.weekdaysShort(mom, '');
1626            longp = this.weekdays(mom, '');
1627            minPieces.push(minp);
1628            shortPieces.push(shortp);
1629            longPieces.push(longp);
1630            mixedPieces.push(minp);
1631            mixedPieces.push(shortp);
1632            mixedPieces.push(longp);
1633        }
1634        // Sorting makes sure if one weekday (or abbr) is a prefix of another it
1635        // will match the longer piece.
1636        minPieces.sort(cmpLenRev);
1637        shortPieces.sort(cmpLenRev);
1638        longPieces.sort(cmpLenRev);
1639        mixedPieces.sort(cmpLenRev);
1640        for (i = 0; i < 7; i++) {
1641            shortPieces[i] = regexEscape(shortPieces[i]);
1642            longPieces[i] = regexEscape(longPieces[i]);
1643            mixedPieces[i] = regexEscape(mixedPieces[i]);
1644        }
1645
1646        this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
1647        this._weekdaysShortRegex = this._weekdaysRegex;
1648        this._weekdaysMinRegex = this._weekdaysRegex;
1649
1650        this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
1651        this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
1652        this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
1653    }
1654
1655    // FORMATTING
1656
1657    function hFormat() {
1658        return this.hours() % 12 || 12;
1659    }
1660
1661    function kFormat() {
1662        return this.hours() || 24;
1663    }
1664
1665    addFormatToken('H', ['HH', 2], 0, 'hour');
1666    addFormatToken('h', ['hh', 2], 0, hFormat);
1667    addFormatToken('k', ['kk', 2], 0, kFormat);
1668
1669    addFormatToken('hmm', 0, 0, function () {
1670        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
1671    });
1672
1673    addFormatToken('hmmss', 0, 0, function () {
1674        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
1675            zeroFill(this.seconds(), 2);
1676    });
1677
1678    addFormatToken('Hmm', 0, 0, function () {
1679        return '' + this.hours() + zeroFill(this.minutes(), 2);
1680    });
1681
1682    addFormatToken('Hmmss', 0, 0, function () {
1683        return '' + this.hours() + zeroFill(this.minutes(), 2) +
1684            zeroFill(this.seconds(), 2);
1685    });
1686
1687    function meridiem (token, lowercase) {
1688        addFormatToken(token, 0, 0, function () {
1689            return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
1690        });
1691    }
1692
1693    meridiem('a', true);
1694    meridiem('A', false);
1695
1696    // ALIASES
1697
1698    addUnitAlias('hour', 'h');
1699
1700    // PRIORITY
1701    addUnitPriority('hour', 13);
1702
1703    // PARSING
1704
1705    function matchMeridiem (isStrict, locale) {
1706        return locale._meridiemParse;
1707    }
1708
1709    addRegexToken('a',  matchMeridiem);
1710    addRegexToken('A',  matchMeridiem);
1711    addRegexToken('H',  match1to2);
1712    addRegexToken('h',  match1to2);
1713    addRegexToken('k',  match1to2);
1714    addRegexToken('HH', match1to2, match2);
1715    addRegexToken('hh', match1to2, match2);
1716    addRegexToken('kk', match1to2, match2);
1717
1718    addRegexToken('hmm', match3to4);
1719    addRegexToken('hmmss', match5to6);
1720    addRegexToken('Hmm', match3to4);
1721    addRegexToken('Hmmss', match5to6);
1722
1723    addParseToken(['H', 'HH'], HOUR);
1724    addParseToken(['k', 'kk'], function (input, array, config) {
1725        var kInput = toInt(input);
1726        array[HOUR] = kInput === 24 ? 0 : kInput;
1727    });
1728    addParseToken(['a', 'A'], function (input, array, config) {
1729        config._isPm = config._locale.isPM(input);
1730        config._meridiem = input;
1731    });
1732    addParseToken(['h', 'hh'], function (input, array, config) {
1733        array[HOUR] = toInt(input);
1734        getParsingFlags(config).bigHour = true;
1735    });
1736    addParseToken('hmm', function (input, array, config) {
1737        var pos = input.length - 2;
1738        array[HOUR] = toInt(input.substr(0, pos));
1739        array[MINUTE] = toInt(input.substr(pos));
1740        getParsingFlags(config).bigHour = true;
1741    });
1742    addParseToken('hmmss', function (input, array, config) {
1743        var pos1 = input.length - 4;
1744        var pos2 = input.length - 2;
1745        array[HOUR] = toInt(input.substr(0, pos1));
1746        array[MINUTE] = toInt(input.substr(pos1, 2));
1747        array[SECOND] = toInt(input.substr(pos2));
1748        getParsingFlags(config).bigHour = true;
1749    });
1750    addParseToken('Hmm', function (input, array, config) {
1751        var pos = input.length - 2;
1752        array[HOUR] = toInt(input.substr(0, pos));
1753        array[MINUTE] = toInt(input.substr(pos));
1754    });
1755    addParseToken('Hmmss', function (input, array, config) {
1756        var pos1 = input.length - 4;
1757        var pos2 = input.length - 2;
1758        array[HOUR] = toInt(input.substr(0, pos1));
1759        array[MINUTE] = toInt(input.substr(pos1, 2));
1760        array[SECOND] = toInt(input.substr(pos2));
1761    });
1762
1763    // LOCALES
1764
1765    function localeIsPM (input) {
1766        // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
1767        // Using charAt should be more compatible.
1768        return ((input + '').toLowerCase().charAt(0) === 'p');
1769    }
1770
1771    var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
1772    function localeMeridiem (hours, minutes, isLower) {
1773        if (hours > 11) {
1774            return isLower ? 'pm' : 'PM';
1775        } else {
1776            return isLower ? 'am' : 'AM';
1777        }
1778    }
1779
1780
1781    // MOMENTS
1782
1783    // Setting the hour should keep the time, because the user explicitly
1784    // specified which hour they want. So trying to maintain the same hour (in
1785    // a new timezone) makes sense. Adding/subtracting hours does not follow
1786    // this rule.
1787    var getSetHour = makeGetSet('Hours', true);
1788
1789    var baseConfig = {
1790        calendar: defaultCalendar,
1791        longDateFormat: defaultLongDateFormat,
1792        invalidDate: defaultInvalidDate,
1793        ordinal: defaultOrdinal,
1794        dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
1795        relativeTime: defaultRelativeTime,
1796
1797        months: defaultLocaleMonths,
1798        monthsShort: defaultLocaleMonthsShort,
1799
1800        week: defaultLocaleWeek,
1801
1802        weekdays: defaultLocaleWeekdays,
1803        weekdaysMin: defaultLocaleWeekdaysMin,
1804        weekdaysShort: defaultLocaleWeekdaysShort,
1805
1806        meridiemParse: defaultLocaleMeridiemParse
1807    };
1808
1809    // internal storage for locale config files
1810    var locales = {};
1811    var localeFamilies = {};
1812    var globalLocale;
1813
1814    function normalizeLocale(key) {
1815        return key ? key.toLowerCase().replace('_', '-') : key;
1816    }
1817
1818    // pick the locale from the array
1819    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
1820    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
1821    function chooseLocale(names) {
1822        var i = 0, j, next, locale, split;
1823
1824        while (i < names.length) {
1825            split = normalizeLocale(names[i]).split('-');
1826            j = split.length;
1827            next = normalizeLocale(names[i + 1]);
1828            next = next ? next.split('-') : null;
1829            while (j > 0) {
1830                locale = loadLocale(split.slice(0, j).join('-'));
1831                if (locale) {
1832                    return locale;
1833                }
1834                if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
1835                    //the next array item is better than a shallower substring of this one
1836                    break;
1837                }
1838                j--;
1839            }
1840            i++;
1841        }
1842        return globalLocale;
1843    }
1844
1845    function loadLocale(name) {
1846        var oldLocale = null;
1847        // TODO: Find a better way to register and load all the locales in Node
1848        if (!locales[name] && (typeof module !== 'undefined') &&
1849                module && module.exports) {
1850            try {
1851                oldLocale = globalLocale._abbr;
1852                var aliasedRequire = require;
1853                aliasedRequire('./locale/' + name);
1854                getSetGlobalLocale(oldLocale);
1855            } catch (e) {}
1856        }
1857        return locales[name];
1858    }
1859
1860    // This function will load locale and then set the global locale.  If
1861    // no arguments are passed in, it will simply return the current global
1862    // locale key.
1863    function getSetGlobalLocale (key, values) {
1864        var data;
1865        if (key) {
1866            if (isUndefined(values)) {
1867                data = getLocale(key);
1868            }
1869            else {
1870                data = defineLocale(key, values);
1871            }
1872
1873            if (data) {
1874                // moment.duration._locale = moment._locale = data;
1875                globalLocale = data;
1876            }
1877            else {
1878                if ((typeof console !==  'undefined') && console.warn) {
1879                    //warn user if arguments are passed but the locale could not be set
1880                    console.warn('Locale ' + key +  ' not found. Did you forget to load it?');
1881                }
1882            }
1883        }
1884
1885        return globalLocale._abbr;
1886    }
1887
1888    function defineLocale (name, config) {
1889        if (config !== null) {
1890            var locale, parentConfig = baseConfig;
1891            config.abbr = name;
1892            if (locales[name] != null) {
1893                deprecateSimple('defineLocaleOverride',
1894                        'use moment.updateLocale(localeName, config) to change ' +
1895                        'an existing locale. moment.defineLocale(localeName, ' +
1896                        'config) should only be used for creating a new locale ' +
1897                        'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
1898                parentConfig = locales[name]._config;
1899            } else if (config.parentLocale != null) {
1900                if (locales[config.parentLocale] != null) {
1901                    parentConfig = locales[config.parentLocale]._config;
1902                } else {
1903                    locale = loadLocale(config.parentLocale);
1904                    if (locale != null) {
1905                        parentConfig = locale._config;
1906                    } else {
1907                        if (!localeFamilies[config.parentLocale]) {
1908                            localeFamilies[config.parentLocale] = [];
1909                        }
1910                        localeFamilies[config.parentLocale].push({
1911                            name: name,
1912                            config: config
1913                        });
1914                        return null;
1915                    }
1916                }
1917            }
1918            locales[name] = new Locale(mergeConfigs(parentConfig, config));
1919
1920            if (localeFamilies[name]) {
1921                localeFamilies[name].forEach(function (x) {
1922                    defineLocale(x.name, x.config);
1923                });
1924            }
1925
1926            // backwards compat for now: also set the locale
1927            // make sure we set the locale AFTER all child locales have been
1928            // created, so we won't end up with the child locale set.
1929            getSetGlobalLocale(name);
1930
1931
1932            return locales[name];
1933        } else {
1934            // useful for testing
1935            delete locales[name];
1936            return null;
1937        }
1938    }
1939
1940    function updateLocale(name, config) {
1941        if (config != null) {
1942            var locale, tmpLocale, parentConfig = baseConfig;
1943            // MERGE
1944            tmpLocale = loadLocale(name);
1945            if (tmpLocale != null) {
1946                parentConfig = tmpLocale._config;
1947            }
1948            config = mergeConfigs(parentConfig, config);
1949            locale = new Locale(config);
1950            locale.parentLocale = locales[name];
1951            locales[name] = locale;
1952
1953            // backwards compat for now: also set the locale
1954            getSetGlobalLocale(name);
1955        } else {
1956            // pass null for config to unupdate, useful for tests
1957            if (locales[name] != null) {
1958                if (locales[name].parentLocale != null) {
1959                    locales[name] = locales[name].parentLocale;
1960                } else if (locales[name] != null) {
1961                    delete locales[name];
1962                }
1963            }
1964        }
1965        return locales[name];
1966    }
1967
1968    // returns locale data
1969    function getLocale (key) {
1970        var locale;
1971
1972        if (key && key._locale && key._locale._abbr) {
1973            key = key._locale._abbr;
1974        }
1975
1976        if (!key) {
1977            return globalLocale;
1978        }
1979
1980        if (!isArray(key)) {
1981            //short-circuit everything else
1982            locale = loadLocale(key);
1983            if (locale) {
1984                return locale;
1985            }
1986            key = [key];
1987        }
1988
1989        return chooseLocale(key);
1990    }
1991
1992    function listLocales() {
1993        return keys(locales);
1994    }
1995
1996    function checkOverflow (m) {
1997        var overflow;
1998        var a = m._a;
1999
2000        if (a && getParsingFlags(m).overflow === -2) {
2001            overflow =
2002                a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
2003                a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
2004                a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
2005                a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
2006                a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
2007                a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
2008                -1;
2009
2010            if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
2011                overflow = DATE;
2012            }
2013            if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
2014                overflow = WEEK;
2015            }
2016            if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
2017                overflow = WEEKDAY;
2018            }
2019
2020            getParsingFlags(m).overflow = overflow;
2021        }
2022
2023        return m;
2024    }
2025
2026    // Pick the first defined of two or three arguments.
2027    function defaults(a, b, c) {
2028        if (a != null) {
2029            return a;
2030        }
2031        if (b != null) {
2032            return b;
2033        }
2034        return c;
2035    }
2036
2037    function currentDateArray(config) {
2038        // hooks is actually the exported moment object
2039        var nowValue = new Date(hooks.now());
2040        if (config._useUTC) {
2041            return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
2042        }
2043        return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
2044    }
2045
2046    // convert an array to a date.
2047    // the array should mirror the parameters below
2048    // note: all values past the year are optional and will default to the lowest possible value.
2049    // [year, month, day , hour, minute, second, millisecond]
2050    function configFromArray (config) {
2051        var i, date, input = [], currentDate, expectedWeekday, yearToUse;
2052
2053        if (config._d) {
2054            return;
2055        }
2056
2057        currentDate = currentDateArray(config);
2058
2059        //compute day of the year from weeks and weekdays
2060        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
2061            dayOfYearFromWeekInfo(config);
2062        }
2063
2064        //if the day of the year is set, figure out what it is
2065        if (config._dayOfYear != null) {
2066            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
2067
2068            if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
2069                getParsingFlags(config)._overflowDayOfYear = true;
2070            }
2071
2072            date = createUTCDate(yearToUse, 0, config._dayOfYear);
2073            config._a[MONTH] = date.getUTCMonth();
2074            config._a[DATE] = date.getUTCDate();
2075        }
2076
2077        // Default to current date.
2078        // * if no year, month, day of month are given, default to today
2079        // * if day of month is given, default month and year
2080        // * if month is given, default only year
2081        // * if year is given, don't default anything
2082        for (i = 0; i < 3 && config._a[i] == null; ++i) {
2083            config._a[i] = input[i] = currentDate[i];
2084        }
2085
2086        // Zero out whatever was not defaulted, including time
2087        for (; i < 7; i++) {
2088            config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
2089        }
2090
2091        // Check for 24:00:00.000
2092        if (config._a[HOUR] === 24 &&
2093                config._a[MINUTE] === 0 &&
2094                config._a[SECOND] === 0 &&
2095                config._a[MILLISECOND] === 0) {
2096            config._nextDay = true;
2097            config._a[HOUR] = 0;
2098        }
2099
2100        config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
2101        expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();
2102
2103        // Apply timezone offset from input. The actual utcOffset can be changed
2104        // with parseZone.
2105        if (config._tzm != null) {
2106            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
2107        }
2108
2109        if (config._nextDay) {
2110            config._a[HOUR] = 24;
2111        }
2112
2113        // check for mismatching day of week
2114        if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
2115            getParsingFlags(config).weekdayMismatch = true;
2116        }
2117    }
2118
2119    function dayOfYearFromWeekInfo(config) {
2120        var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;
2121
2122        w = config._w;
2123        if (w.GG != null || w.W != null || w.E != null) {
2124            dow = 1;
2125            doy = 4;
2126
2127            // TODO: We need to take the current isoWeekYear, but that depends on
2128            // how we interpret now (local, utc, fixed offset). So create
2129            // a now version of current config (take local/utc/offset flags, and
2130            // create now).
2131            weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
2132            week = defaults(w.W, 1);
2133            weekday = defaults(w.E, 1);
2134            if (weekday < 1 || weekday > 7) {
2135                weekdayOverflow = true;
2136            }
2137        } else {
2138            dow = config._locale._week.dow;
2139            doy = config._locale._week.doy;
2140
2141            var curWeek = weekOfYear(createLocal(), dow, doy);
2142
2143            weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
2144
2145            // Default to current week.
2146            week = defaults(w.w, curWeek.week);
2147
2148            if (w.d != null) {
2149                // weekday -- low day numbers are considered next week
2150                weekday = w.d;
2151                if (weekday < 0 || weekday > 6) {
2152                    weekdayOverflow = true;
2153                }
2154            } else if (w.e != null) {
2155                // local weekday -- counting starts from beginning of week
2156                weekday = w.e + dow;
2157                if (w.e < 0 || w.e > 6) {
2158                    weekdayOverflow = true;
2159                }
2160            } else {
2161                // default to beginning of week
2162                weekday = dow;
2163            }
2164        }
2165        if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
2166            getParsingFlags(config)._overflowWeeks = true;
2167        } else if (weekdayOverflow != null) {
2168            getParsingFlags(config)._overflowWeekday = true;
2169        } else {
2170            temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
2171            config._a[YEAR] = temp.year;
2172            config._dayOfYear = temp.dayOfYear;
2173        }
2174    }
2175
2176    // iso 8601 regex
2177    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
2178    var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
2179    var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
2180
2181    var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;
2182
2183    var isoDates = [
2184        ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
2185        ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
2186        ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
2187        ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
2188        ['YYYY-DDD', /\d{4}-\d{3}/],
2189        ['YYYY-MM', /\d{4}-\d\d/, false],
2190        ['YYYYYYMMDD', /[+-]\d{10}/],
2191        ['YYYYMMDD', /\d{8}/],
2192        // YYYYMM is NOT allowed by the standard
2193        ['GGGG[W]WWE', /\d{4}W\d{3}/],
2194        ['GGGG[W]WW', /\d{4}W\d{2}/, false],
2195        ['YYYYDDD', /\d{7}/]
2196    ];
2197
2198    // iso time formats and regexes
2199    var isoTimes = [
2200        ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
2201        ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
2202        ['HH:mm:ss', /\d\d:\d\d:\d\d/],
2203        ['HH:mm', /\d\d:\d\d/],
2204        ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
2205        ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
2206        ['HHmmss', /\d\d\d\d\d\d/],
2207        ['HHmm', /\d\d\d\d/],
2208        ['HH', /\d\d/]
2209    ];
2210
2211    var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;
2212
2213    // date from iso format
2214    function configFromISO(config) {
2215        var i, l,
2216            string = config._i,
2217            match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
2218            allowTime, dateFormat, timeFormat, tzFormat;
2219
2220        if (match) {
2221            getParsingFlags(config).iso = true;
2222
2223            for (i = 0, l = isoDates.length; i < l; i++) {
2224                if (isoDates[i][1].exec(match[1])) {
2225                    dateFormat = isoDates[i][0];
2226                    allowTime = isoDates[i][2] !== false;
2227                    break;
2228                }
2229            }
2230            if (dateFormat == null) {
2231                config._isValid = false;
2232                return;
2233            }
2234            if (match[3]) {
2235                for (i = 0, l = isoTimes.length; i < l; i++) {
2236                    if (isoTimes[i][1].exec(match[3])) {
2237                        // match[2] should be 'T' or space
2238                        timeFormat = (match[2] || ' ') + isoTimes[i][0];
2239                        break;
2240                    }
2241                }
2242                if (timeFormat == null) {
2243                    config._isValid = false;
2244                    return;
2245                }
2246            }
2247            if (!allowTime && timeFormat != null) {
2248                config._isValid = false;
2249                return;
2250            }
2251            if (match[4]) {
2252                if (tzRegex.exec(match[4])) {
2253                    tzFormat = 'Z';
2254                } else {
2255                    config._isValid = false;
2256                    return;
2257                }
2258            }
2259            config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
2260            configFromStringAndFormat(config);
2261        } else {
2262            config._isValid = false;
2263        }
2264    }
2265
2266    // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
2267    var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;
2268
2269    function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
2270        var result = [
2271            untruncateYear(yearStr),
2272            defaultLocaleMonthsShort.indexOf(monthStr),
2273            parseInt(dayStr, 10),
2274            parseInt(hourStr, 10),
2275            parseInt(minuteStr, 10)
2276        ];
2277
2278        if (secondStr) {
2279            result.push(parseInt(secondStr, 10));
2280        }
2281
2282        return result;
2283    }
2284
2285    function untruncateYear(yearStr) {
2286        var year = parseInt(yearStr, 10);
2287        if (year <= 49) {
2288            return 2000 + year;
2289        } else if (year <= 999) {
2290            return 1900 + year;
2291        }
2292        return year;
2293    }
2294
2295    function preprocessRFC2822(s) {
2296        // Remove comments and folding whitespace and replace multiple-spaces with a single space
2297        return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, '');
2298    }
2299
2300    function checkWeekday(weekdayStr, parsedInput, config) {
2301        if (weekdayStr) {
2302            // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
2303            var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
2304                weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
2305            if (weekdayProvided !== weekdayActual) {
2306                getParsingFlags(config).weekdayMismatch = true;
2307                config._isValid = false;
2308                return false;
2309            }
2310        }
2311        return true;
2312    }
2313
2314    var obsOffsets = {
2315        UT: 0,
2316        GMT: 0,
2317        EDT: -4 * 60,
2318        EST: -5 * 60,
2319        CDT: -5 * 60,
2320        CST: -6 * 60,
2321        MDT: -6 * 60,
2322        MST: -7 * 60,
2323        PDT: -7 * 60,
2324        PST: -8 * 60
2325    };
2326
2327    function calculateOffset(obsOffset, militaryOffset, numOffset) {
2328        if (obsOffset) {
2329            return obsOffsets[obsOffset];
2330        } else if (militaryOffset) {
2331            // the only allowed military tz is Z
2332            return 0;
2333        } else {
2334            var hm = parseInt(numOffset, 10);
2335            var m = hm % 100, h = (hm - m) / 100;
2336            return h * 60 + m;
2337        }
2338    }
2339
2340    // date and time from ref 2822 format
2341    function configFromRFC2822(config) {
2342        var match = rfc2822.exec(preprocessRFC2822(config._i));
2343        if (match) {
2344            var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
2345            if (!checkWeekday(match[1], parsedArray, config)) {
2346                return;
2347            }
2348
2349            config._a = parsedArray;
2350            config._tzm = calculateOffset(match[8], match[9], match[10]);
2351
2352            config._d = createUTCDate.apply(null, config._a);
2353            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
2354
2355            getParsingFlags(config).rfc2822 = true;
2356        } else {
2357            config._isValid = false;
2358        }
2359    }
2360
2361    // date from iso format or fallback
2362    function configFromString(config) {
2363        var matched = aspNetJsonRegex.exec(config._i);
2364
2365        if (matched !== null) {
2366            config._d = new Date(+matched[1]);
2367            return;
2368        }
2369
2370        configFromISO(config);
2371        if (config._isValid === false) {
2372            delete config._isValid;
2373        } else {
2374            return;
2375        }
2376
2377        configFromRFC2822(config);
2378        if (config._isValid === false) {
2379            delete config._isValid;
2380        } else {
2381            return;
2382        }
2383
2384        // Final attempt, use Input Fallback
2385        hooks.createFromInputFallback(config);
2386    }
2387
2388    hooks.createFromInputFallback = deprecate(
2389        'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
2390        'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
2391        'discouraged and will be removed in an upcoming major release. Please refer to ' +
2392        'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
2393        function (config) {
2394            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
2395        }
2396    );
2397
2398    // constant that refers to the ISO standard
2399    hooks.ISO_8601 = function () {};
2400
2401    // constant that refers to the RFC 2822 form
2402    hooks.RFC_2822 = function () {};
2403
2404    // date from string and format string
2405    function configFromStringAndFormat(config) {
2406        // TODO: Move this to another part of the creation flow to prevent circular deps
2407        if (config._f === hooks.ISO_8601) {
2408            configFromISO(config);
2409            return;
2410        }
2411        if (config._f === hooks.RFC_2822) {
2412            configFromRFC2822(config);
2413            return;
2414        }
2415        config._a = [];
2416        getParsingFlags(config).empty = true;
2417
2418        // This array is used to make a Date, either with `new Date` or `Date.UTC`
2419        var string = '' + config._i,
2420            i, parsedInput, tokens, token, skipped,
2421            stringLength = string.length,
2422            totalParsedInputLength = 0;
2423
2424        tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];
2425
2426        for (i = 0; i < tokens.length; i++) {
2427            token = tokens[i];
2428            parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
2429            // console.log('token', token, 'parsedInput', parsedInput,
2430            //         'regex', getParseRegexForToken(token, config));
2431            if (parsedInput) {
2432                skipped = string.substr(0, string.indexOf(parsedInput));
2433                if (skipped.length > 0) {
2434                    getParsingFlags(config).unusedInput.push(skipped);
2435                }
2436                string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
2437                totalParsedInputLength += parsedInput.length;
2438            }
2439            // don't parse if it's not a known token
2440            if (formatTokenFunctions[token]) {
2441                if (parsedInput) {
2442                    getParsingFlags(config).empty = false;
2443                }
2444                else {
2445                    getParsingFlags(config).unusedTokens.push(token);
2446                }
2447                addTimeToArrayFromToken(token, parsedInput, config);
2448            }
2449            else if (config._strict && !parsedInput) {
2450                getParsingFlags(config).unusedTokens.push(token);
2451            }
2452        }
2453
2454        // add remaining unparsed input length to the string
2455        getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
2456        if (string.length > 0) {
2457            getParsingFlags(config).unusedInput.push(string);
2458        }
2459
2460        // clear _12h flag if hour is <= 12
2461        if (config._a[HOUR] <= 12 &&
2462            getParsingFlags(config).bigHour === true &&
2463            config._a[HOUR] > 0) {
2464            getParsingFlags(config).bigHour = undefined;
2465        }
2466
2467        getParsingFlags(config).parsedDateParts = config._a.slice(0);
2468        getParsingFlags(config).meridiem = config._meridiem;
2469        // handle meridiem
2470        config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);
2471
2472        configFromArray(config);
2473        checkOverflow(config);
2474    }
2475
2476
2477    function meridiemFixWrap (locale, hour, meridiem) {
2478        var isPm;
2479
2480        if (meridiem == null) {
2481            // nothing to do
2482            return hour;
2483        }
2484        if (locale.meridiemHour != null) {
2485            return locale.meridiemHour(hour, meridiem);
2486        } else if (locale.isPM != null) {
2487            // Fallback
2488            isPm = locale.isPM(meridiem);
2489            if (isPm && hour < 12) {
2490                hour += 12;
2491            }
2492            if (!isPm && hour === 12) {
2493                hour = 0;
2494            }
2495            return hour;
2496        } else {
2497            // this is not supposed to happen
2498            return hour;
2499        }
2500    }
2501
2502    // date from string and array of format strings
2503    function configFromStringAndArray(config) {
2504        var tempConfig,
2505            bestMoment,
2506
2507            scoreToBeat,
2508            i,
2509            currentScore;
2510
2511        if (config._f.length === 0) {
2512            getParsingFlags(config).invalidFormat = true;
2513            config._d = new Date(NaN);
2514            return;
2515        }
2516
2517        for (i = 0; i < config._f.length; i++) {
2518            currentScore = 0;
2519            tempConfig = copyConfig({}, config);
2520            if (config._useUTC != null) {
2521                tempConfig._useUTC = config._useUTC;
2522            }
2523            tempConfig._f = config._f[i];
2524            configFromStringAndFormat(tempConfig);
2525
2526            if (!isValid(tempConfig)) {
2527                continue;
2528            }
2529
2530            // if there is any input that was not parsed add a penalty for that format
2531            currentScore += getParsingFlags(tempConfig).charsLeftOver;
2532
2533            //or tokens
2534            currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
2535
2536            getParsingFlags(tempConfig).score = currentScore;
2537
2538            if (scoreToBeat == null || currentScore < scoreToBeat) {
2539                scoreToBeat = currentScore;
2540                bestMoment = tempConfig;
2541            }
2542        }
2543
2544        extend(config, bestMoment || tempConfig);
2545    }
2546
2547    function configFromObject(config) {
2548        if (config._d) {
2549            return;
2550        }
2551
2552        var i = normalizeObjectUnits(config._i);
2553        config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
2554            return obj && parseInt(obj, 10);
2555        });
2556
2557        configFromArray(config);
2558    }
2559
2560    function createFromConfig (config) {
2561        var res = new Moment(checkOverflow(prepareConfig(config)));
2562        if (res._nextDay) {
2563            // Adding is smart enough around DST
2564            res.add(1, 'd');
2565            res._nextDay = undefined;
2566        }
2567
2568        return res;
2569    }
2570
2571    function prepareConfig (config) {
2572        var input = config._i,
2573            format = config._f;
2574
2575        config._locale = config._locale || getLocale(config._l);
2576
2577        if (input === null || (format === undefined && input === '')) {
2578            return createInvalid({nullInput: true});
2579        }
2580
2581        if (typeof input === 'string') {
2582            config._i = input = config._locale.preparse(input);
2583        }
2584
2585        if (isMoment(input)) {
2586            return new Moment(checkOverflow(input));
2587        } else if (isDate(input)) {
2588            config._d = input;
2589        } else if (isArray(format)) {
2590            configFromStringAndArray(config);
2591        } else if (format) {
2592            configFromStringAndFormat(config);
2593        }  else {
2594            configFromInput(config);
2595        }
2596
2597        if (!isValid(config)) {
2598            config._d = null;
2599        }
2600
2601        return config;
2602    }
2603
2604    function configFromInput(config) {
2605        var input = config._i;
2606        if (isUndefined(input)) {
2607            config._d = new Date(hooks.now());
2608        } else if (isDate(input)) {
2609            config._d = new Date(input.valueOf());
2610        } else if (typeof input === 'string') {
2611            configFromString(config);
2612        } else if (isArray(input)) {
2613            config._a = map(input.slice(0), function (obj) {
2614                return parseInt(obj, 10);
2615            });
2616            configFromArray(config);
2617        } else if (isObject(input)) {
2618            configFromObject(config);
2619        } else if (isNumber(input)) {
2620            // from milliseconds
2621            config._d = new Date(input);
2622        } else {
2623            hooks.createFromInputFallback(config);
2624        }
2625    }
2626
2627    function createLocalOrUTC (input, format, locale, strict, isUTC) {
2628        var c = {};
2629
2630        if (locale === true || locale === false) {
2631            strict = locale;
2632            locale = undefined;
2633        }
2634
2635        if ((isObject(input) && isObjectEmpty(input)) ||
2636                (isArray(input) && input.length === 0)) {
2637            input = undefined;
2638        }
2639        // object construction must be done this way.
2640        // https://github.com/moment/moment/issues/1423
2641        c._isAMomentObject = true;
2642        c._useUTC = c._isUTC = isUTC;
2643        c._l = locale;
2644        c._i = input;
2645        c._f = format;
2646        c._strict = strict;
2647
2648        return createFromConfig(c);
2649    }
2650
2651    function createLocal (input, format, locale, strict) {
2652        return createLocalOrUTC(input, format, locale, strict, false);
2653    }
2654
2655    var prototypeMin = deprecate(
2656        'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
2657        function () {
2658            var other = createLocal.apply(null, arguments);
2659            if (this.isValid() && other.isValid()) {
2660                return other < this ? this : other;
2661            } else {
2662                return createInvalid();
2663            }
2664        }
2665    );
2666
2667    var prototypeMax = deprecate(
2668        'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
2669        function () {
2670            var other = createLocal.apply(null, arguments);
2671            if (this.isValid() && other.isValid()) {
2672                return other > this ? this : other;
2673            } else {
2674                return createInvalid();
2675            }
2676        }
2677    );
2678
2679    // Pick a moment m from moments so that m[fn](other) is true for all
2680    // other. This relies on the function fn to be transitive.
2681    //
2682    // moments should either be an array of moment objects or an array, whose
2683    // first element is an array of moment objects.
2684    function pickBy(fn, moments) {
2685        var res, i;
2686        if (moments.length === 1 && isArray(moments[0])) {
2687            moments = moments[0];
2688        }
2689        if (!moments.length) {
2690            return createLocal();
2691        }
2692        res = moments[0];
2693        for (i = 1; i < moments.length; ++i) {
2694            if (!moments[i].isValid() || moments[i][fn](res)) {
2695                res = moments[i];
2696            }
2697        }
2698        return res;
2699    }
2700
2701    // TODO: Use [].sort instead?
2702    function min () {
2703        var args = [].slice.call(arguments, 0);
2704
2705        return pickBy('isBefore', args);
2706    }
2707
2708    function max () {
2709        var args = [].slice.call(arguments, 0);
2710
2711        return pickBy('isAfter', args);
2712    }
2713
2714    var now = function () {
2715        return Date.now ? Date.now() : +(new Date());
2716    };
2717
2718    var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];
2719
2720    function isDurationValid(m) {
2721        for (var key in m) {
2722            if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
2723                return false;
2724            }
2725        }
2726
2727        var unitHasDecimal = false;
2728        for (var i = 0; i < ordering.length; ++i) {
2729            if (m[ordering[i]]) {
2730                if (unitHasDecimal) {
2731                    return false; // only allow non-integers for smallest unit
2732                }
2733                if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
2734                    unitHasDecimal = true;
2735                }
2736            }
2737        }
2738
2739        return true;
2740    }
2741
2742    function isValid$1() {
2743        return this._isValid;
2744    }
2745
2746    function createInvalid$1() {
2747        return createDuration(NaN);
2748    }
2749
2750    function Duration (duration) {
2751        var normalizedInput = normalizeObjectUnits(duration),
2752            years = normalizedInput.year || 0,
2753            quarters = normalizedInput.quarter || 0,
2754            months = normalizedInput.month || 0,
2755            weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
2756            days = normalizedInput.day || 0,
2757            hours = normalizedInput.hour || 0,
2758            minutes = normalizedInput.minute || 0,
2759            seconds = normalizedInput.second || 0,
2760            milliseconds = normalizedInput.millisecond || 0;
2761
2762        this._isValid = isDurationValid(normalizedInput);
2763
2764        // representation for dateAddRemove
2765        this._milliseconds = +milliseconds +
2766            seconds * 1e3 + // 1000
2767            minutes * 6e4 + // 1000 * 60
2768            hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
2769        // Because of dateAddRemove treats 24 hours as different from a
2770        // day when working around DST, we need to store them separately
2771        this._days = +days +
2772            weeks * 7;
2773        // It is impossible to translate months into days without knowing
2774        // which months you are are talking about, so we have to store
2775        // it separately.
2776        this._months = +months +
2777            quarters * 3 +
2778            years * 12;
2779
2780        this._data = {};
2781
2782        this._locale = getLocale();
2783
2784        this._bubble();
2785    }
2786
2787    function isDuration (obj) {
2788        return obj instanceof Duration;
2789    }
2790
2791    function absRound (number) {
2792        if (number < 0) {
2793            return Math.round(-1 * number) * -1;
2794        } else {
2795            return Math.round(number);
2796        }
2797    }
2798
2799    // FORMATTING
2800
2801    function offset (token, separator) {
2802        addFormatToken(token, 0, 0, function () {
2803            var offset = this.utcOffset();
2804            var sign = '+';
2805            if (offset < 0) {
2806                offset = -offset;
2807                sign = '-';
2808            }
2809            return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
2810        });
2811    }
2812
2813    offset('Z', ':');
2814    offset('ZZ', '');
2815
2816    // PARSING
2817
2818    addRegexToken('Z',  matchShortOffset);
2819    addRegexToken('ZZ', matchShortOffset);
2820    addParseToken(['Z', 'ZZ'], function (input, array, config) {
2821        config._useUTC = true;
2822        config._tzm = offsetFromString(matchShortOffset, input);
2823    });
2824
2825    // HELPERS
2826
2827    // timezone chunker
2828    // '+10:00' > ['10',  '00']
2829    // '-1530'  > ['-15', '30']
2830    var chunkOffset = /([\+\-]|\d\d)/gi;
2831
2832    function offsetFromString(matcher, string) {
2833        var matches = (string || '').match(matcher);
2834
2835        if (matches === null) {
2836            return null;
2837        }
2838
2839        var chunk   = matches[matches.length - 1] || [];
2840        var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
2841        var minutes = +(parts[1] * 60) + toInt(parts[2]);
2842
2843        return minutes === 0 ?
2844          0 :
2845          parts[0] === '+' ? minutes : -minutes;
2846    }
2847
2848    // Return a moment from input, that is local/utc/zone equivalent to model.
2849    function cloneWithOffset(input, model) {
2850        var res, diff;
2851        if (model._isUTC) {
2852            res = model.clone();
2853            diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
2854            // Use low-level api, because this fn is low-level api.
2855            res._d.setTime(res._d.valueOf() + diff);
2856            hooks.updateOffset(res, false);
2857            return res;
2858        } else {
2859            return createLocal(input).local();
2860        }
2861    }
2862
2863    function getDateOffset (m) {
2864        // On Firefox.24 Date#getTimezoneOffset returns a floating point.
2865        // https://github.com/moment/moment/pull/1871
2866        return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
2867    }
2868
2869    // HOOKS
2870
2871    // This function will be called whenever a moment is mutated.
2872    // It is intended to keep the offset in sync with the timezone.
2873    hooks.updateOffset = function () {};
2874
2875    // MOMENTS
2876
2877    // keepLocalTime = true means only change the timezone, without
2878    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
2879    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
2880    // +0200, so we adjust the time as needed, to be valid.
2881    //
2882    // Keeping the time actually adds/subtracts (one hour)
2883    // from the actual represented time. That is why we call updateOffset
2884    // a second time. In case it wants us to change the offset again
2885    // _changeInProgress == true case, then we have to adjust, because
2886    // there is no such time in the given timezone.
2887    function getSetOffset (input, keepLocalTime, keepMinutes) {
2888        var offset = this._offset || 0,
2889            localAdjust;
2890        if (!this.isValid()) {
2891            return input != null ? this : NaN;
2892        }
2893        if (input != null) {
2894            if (typeof input === 'string') {
2895                input = offsetFromString(matchShortOffset, input);
2896                if (input === null) {
2897                    return this;
2898                }
2899            } else if (Math.abs(input) < 16 && !keepMinutes) {
2900                input = input * 60;
2901            }
2902            if (!this._isUTC && keepLocalTime) {
2903                localAdjust = getDateOffset(this);
2904            }
2905            this._offset = input;
2906            this._isUTC = true;
2907            if (localAdjust != null) {
2908                this.add(localAdjust, 'm');
2909            }
2910            if (offset !== input) {
2911                if (!keepLocalTime || this._changeInProgress) {
2912                    addSubtract(this, createDuration(input - offset, 'm'), 1, false);
2913                } else if (!this._changeInProgress) {
2914                    this._changeInProgress = true;
2915                    hooks.updateOffset(this, true);
2916                    this._changeInProgress = null;
2917                }
2918            }
2919            return this;
2920        } else {
2921            return this._isUTC ? offset : getDateOffset(this);
2922        }
2923    }
2924
2925    function getSetZone (input, keepLocalTime) {
2926        if (input != null) {
2927            if (typeof input !== 'string') {
2928                input = -input;
2929            }
2930
2931            this.utcOffset(input, keepLocalTime);
2932
2933            return this;
2934        } else {
2935            return -this.utcOffset();
2936        }
2937    }
2938
2939    function setOffsetToUTC (keepLocalTime) {
2940        return this.utcOffset(0, keepLocalTime);
2941    }
2942
2943    function setOffsetToLocal (keepLocalTime) {
2944        if (this._isUTC) {
2945            this.utcOffset(0, keepLocalTime);
2946            this._isUTC = false;
2947
2948            if (keepLocalTime) {
2949                this.subtract(getDateOffset(this), 'm');
2950            }
2951        }
2952        return this;
2953    }
2954
2955    function setOffsetToParsedOffset () {
2956        if (this._tzm != null) {
2957            this.utcOffset(this._tzm, false, true);
2958        } else if (typeof this._i === 'string') {
2959            var tZone = offsetFromString(matchOffset, this._i);
2960            if (tZone != null) {
2961                this.utcOffset(tZone);
2962            }
2963            else {
2964                this.utcOffset(0, true);
2965            }
2966        }
2967        return this;
2968    }
2969
2970    function hasAlignedHourOffset (input) {
2971        if (!this.isValid()) {
2972            return false;
2973        }
2974        input = input ? createLocal(input).utcOffset() : 0;
2975
2976        return (this.utcOffset() - input) % 60 === 0;
2977    }
2978
2979    function isDaylightSavingTime () {
2980        return (
2981            this.utcOffset() > this.clone().month(0).utcOffset() ||
2982            this.utcOffset() > this.clone().month(5).utcOffset()
2983        );
2984    }
2985
2986    function isDaylightSavingTimeShifted () {
2987        if (!isUndefined(this._isDSTShifted)) {
2988            return this._isDSTShifted;
2989        }
2990
2991        var c = {};
2992
2993        copyConfig(c, this);
2994        c = prepareConfig(c);
2995
2996        if (c._a) {
2997            var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
2998            this._isDSTShifted = this.isValid() &&
2999                compareArrays(c._a, other.toArray()) > 0;
3000        } else {
3001            this._isDSTShifted = false;
3002        }
3003
3004        return this._isDSTShifted;
3005    }
3006
3007    function isLocal () {
3008        return this.isValid() ? !this._isUTC : false;
3009    }
3010
3011    function isUtcOffset () {
3012        return this.isValid() ? this._isUTC : false;
3013    }
3014
3015    function isUtc () {
3016        return this.isValid() ? this._isUTC && this._offset === 0 : false;
3017    }
3018
3019    // ASP.NET json date format regex
3020    var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;
3021
3022    // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
3023    // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
3024    // and further modified to allow for strings containing both week and day
3025    var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
3026
3027    function createDuration (input, key) {
3028        var duration = input,
3029            // matching against regexp is expensive, do it on demand
3030            match = null,
3031            sign,
3032            ret,
3033            diffRes;
3034
3035        if (isDuration(input)) {
3036            duration = {
3037                ms : input._milliseconds,
3038                d  : input._days,
3039                M  : input._months
3040            };
3041        } else if (isNumber(input)) {
3042            duration = {};
3043            if (key) {
3044                duration[key] = input;
3045            } else {
3046                duration.milliseconds = input;
3047            }
3048        } else if (!!(match = aspNetRegex.exec(input))) {
3049            sign = (match[1] === '-') ? -1 : 1;
3050            duration = {
3051                y  : 0,
3052                d  : toInt(match[DATE])                         * sign,
3053                h  : toInt(match[HOUR])                         * sign,
3054                m  : toInt(match[MINUTE])                       * sign,
3055                s  : toInt(match[SECOND])                       * sign,
3056                ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
3057            };
3058        } else if (!!(match = isoRegex.exec(input))) {
3059            sign = (match[1] === '-') ? -1 : 1;
3060            duration = {
3061                y : parseIso(match[2], sign),
3062                M : parseIso(match[3], sign),
3063                w : parseIso(match[4], sign),
3064                d : parseIso(match[5], sign),
3065                h : parseIso(match[6], sign),
3066                m : parseIso(match[7], sign),
3067                s : parseIso(match[8], sign)
3068            };
3069        } else if (duration == null) {// checks for null or undefined
3070            duration = {};
3071        } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
3072            diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));
3073
3074            duration = {};
3075            duration.ms = diffRes.milliseconds;
3076            duration.M = diffRes.months;
3077        }
3078
3079        ret = new Duration(duration);
3080
3081        if (isDuration(input) && hasOwnProp(input, '_locale')) {
3082            ret._locale = input._locale;
3083        }
3084
3085        return ret;
3086    }
3087
3088    createDuration.fn = Duration.prototype;
3089    createDuration.invalid = createInvalid$1;
3090
3091    function parseIso (inp, sign) {
3092        // We'd normally use ~~inp for this, but unfortunately it also
3093        // converts floats to ints.
3094        // inp may be undefined, so careful calling replace on it.
3095        var res = inp && parseFloat(inp.replace(',', '.'));
3096        // apply sign while we're at it
3097        return (isNaN(res) ? 0 : res) * sign;
3098    }
3099
3100    function positiveMomentsDifference(base, other) {
3101        var res = {};
3102
3103        res.months = other.month() - base.month() +
3104            (other.year() - base.year()) * 12;
3105        if (base.clone().add(res.months, 'M').isAfter(other)) {
3106            --res.months;
3107        }
3108
3109        res.milliseconds = +other - +(base.clone().add(res.months, 'M'));
3110
3111        return res;
3112    }
3113
3114    function momentsDifference(base, other) {
3115        var res;
3116        if (!(base.isValid() && other.isValid())) {
3117            return {milliseconds: 0, months: 0};
3118        }
3119
3120        other = cloneWithOffset(other, base);
3121        if (base.isBefore(other)) {
3122            res = positiveMomentsDifference(base, other);
3123        } else {
3124            res = positiveMomentsDifference(other, base);
3125            res.milliseconds = -res.milliseconds;
3126            res.months = -res.months;
3127        }
3128
3129        return res;
3130    }
3131
3132    // TODO: remove 'name' arg after deprecation is removed
3133    function createAdder(direction, name) {
3134        return function (val, period) {
3135            var dur, tmp;
3136            //invert the arguments, but complain about it
3137            if (period !== null && !isNaN(+period)) {
3138                deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
3139                'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
3140                tmp = val; val = period; period = tmp;
3141            }
3142
3143            val = typeof val === 'string' ? +val : val;
3144            dur = createDuration(val, period);
3145            addSubtract(this, dur, direction);
3146            return this;
3147        };
3148    }
3149
3150    function addSubtract (mom, duration, isAdding, updateOffset) {
3151        var milliseconds = duration._milliseconds,
3152            days = absRound(duration._days),
3153            months = absRound(duration._months);
3154
3155        if (!mom.isValid()) {
3156            // No op
3157            return;
3158        }
3159
3160        updateOffset = updateOffset == null ? true : updateOffset;
3161
3162        if (months) {
3163            setMonth(mom, get(mom, 'Month') + months * isAdding);
3164        }
3165        if (days) {
3166            set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
3167        }
3168        if (milliseconds) {
3169            mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
3170        }
3171        if (updateOffset) {
3172            hooks.updateOffset(mom, days || months);
3173        }
3174    }
3175
3176    var add      = createAdder(1, 'add');
3177    var subtract = createAdder(-1, 'subtract');
3178
3179    function getCalendarFormat(myMoment, now) {
3180        var diff = myMoment.diff(now, 'days', true);
3181        return diff < -6 ? 'sameElse' :
3182                diff < -1 ? 'lastWeek' :
3183                diff < 0 ? 'lastDay' :
3184                diff < 1 ? 'sameDay' :
3185                diff < 2 ? 'nextDay' :
3186                diff < 7 ? 'nextWeek' : 'sameElse';
3187    }
3188
3189    function calendar$1 (time, formats) {
3190        // We want to compare the start of today, vs this.
3191        // Getting start-of-today depends on whether we're local/utc/offset or not.
3192        var now = time || createLocal(),
3193            sod = cloneWithOffset(now, this).startOf('day'),
3194            format = hooks.calendarFormat(this, sod) || 'sameElse';
3195
3196        var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);
3197
3198        return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
3199    }
3200
3201    function clone () {
3202        return new Moment(this);
3203    }
3204
3205    function isAfter (input, units) {
3206        var localInput = isMoment(input) ? input : createLocal(input);
3207        if (!(this.isValid() && localInput.isValid())) {
3208            return false;
3209        }
3210        units = normalizeUnits(units) || 'millisecond';
3211        if (units === 'millisecond') {
3212            return this.valueOf() > localInput.valueOf();
3213        } else {
3214            return localInput.valueOf() < this.clone().startOf(units).valueOf();
3215        }
3216    }
3217
3218    function isBefore (input, units) {
3219        var localInput = isMoment(input) ? input : createLocal(input);
3220        if (!(this.isValid() && localInput.isValid())) {
3221            return false;
3222        }
3223        units = normalizeUnits(units) || 'millisecond';
3224        if (units === 'millisecond') {
3225            return this.valueOf() < localInput.valueOf();
3226        } else {
3227            return this.clone().endOf(units).valueOf() < localInput.valueOf();
3228        }
3229    }
3230
3231    function isBetween (from, to, units, inclusivity) {
3232        var localFrom = isMoment(from) ? from : createLocal(from),
3233            localTo = isMoment(to) ? to : createLocal(to);
3234        if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
3235            return false;
3236        }
3237        inclusivity = inclusivity || '()';
3238        return (inclusivity[0] === '(' ? this.isAfter(localFrom, units) : !this.isBefore(localFrom, units)) &&
3239            (inclusivity[1] === ')' ? this.isBefore(localTo, units) : !this.isAfter(localTo, units));
3240    }
3241
3242    function isSame (input, units) {
3243        var localInput = isMoment(input) ? input : createLocal(input),
3244            inputMs;
3245        if (!(this.isValid() && localInput.isValid())) {
3246            return false;
3247        }
3248        units = normalizeUnits(units) || 'millisecond';
3249        if (units === 'millisecond') {
3250            return this.valueOf() === localInput.valueOf();
3251        } else {
3252            inputMs = localInput.valueOf();
3253            return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
3254        }
3255    }
3256
3257    function isSameOrAfter (input, units) {
3258        return this.isSame(input, units) || this.isAfter(input, units);
3259    }
3260
3261    function isSameOrBefore (input, units) {
3262        return this.isSame(input, units) || this.isBefore(input, units);
3263    }
3264
3265    function diff (input, units, asFloat) {
3266        var that,
3267            zoneDelta,
3268            output;
3269
3270        if (!this.isValid()) {
3271            return NaN;
3272        }
3273
3274        that = cloneWithOffset(input, this);
3275
3276        if (!that.isValid()) {
3277            return NaN;
3278        }
3279
3280        zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
3281
3282        units = normalizeUnits(units);
3283
3284        switch (units) {
3285            case 'year': output = monthDiff(this, that) / 12; break;
3286            case 'month': output = monthDiff(this, that); break;
3287            case 'quarter': output = monthDiff(this, that) / 3; break;
3288            case 'second': output = (this - that) / 1e3; break; // 1000
3289            case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
3290            case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
3291            case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
3292            case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
3293            default: output = this - that;
3294        }
3295
3296        return asFloat ? output : absFloor(output);
3297    }
3298
3299    function monthDiff (a, b) {
3300        // difference in months
3301        var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
3302            // b is in (anchor - 1 month, anchor + 1 month)
3303            anchor = a.clone().add(wholeMonthDiff, 'months'),
3304            anchor2, adjust;
3305
3306        if (b - anchor < 0) {
3307            anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
3308            // linear across the month
3309            adjust = (b - anchor) / (anchor - anchor2);
3310        } else {
3311            anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
3312            // linear across the month
3313            adjust = (b - anchor) / (anchor2 - anchor);
3314        }
3315
3316        //check for negative zero, return zero if negative zero
3317        return -(wholeMonthDiff + adjust) || 0;
3318    }
3319
3320    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
3321    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
3322
3323    function toString () {
3324        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
3325    }
3326
3327    function toISOString(keepOffset) {
3328        if (!this.isValid()) {
3329            return null;
3330        }
3331        var utc = keepOffset !== true;
3332        var m = utc ? this.clone().utc() : this;
3333        if (m.year() < 0 || m.year() > 9999) {
3334            return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
3335        }
3336        if (isFunction(Date.prototype.toISOString)) {
3337            // native implementation is ~50x faster, use it when we can
3338            if (utc) {
3339                return this.toDate().toISOString();
3340            } else {
3341                return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'));
3342            }
3343        }
3344        return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
3345    }
3346
3347    /**
3348     * Return a human readable representation of a moment that can
3349     * also be evaluated to get a new moment which is the same
3350     *
3351     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
3352     */
3353    function inspect () {
3354        if (!this.isValid()) {
3355            return 'moment.invalid(/* ' + this._i + ' */)';
3356        }
3357        var func = 'moment';
3358        var zone = '';
3359        if (!this.isLocal()) {
3360            func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
3361            zone = 'Z';
3362        }
3363        var prefix = '[' + func + '("]';
3364        var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
3365        var datetime = '-MM-DD[T]HH:mm:ss.SSS';
3366        var suffix = zone + '[")]';
3367
3368        return this.format(prefix + year + datetime + suffix);
3369    }
3370
3371    function format (inputString) {
3372        if (!inputString) {
3373            inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
3374        }
3375        var output = formatMoment(this, inputString);
3376        return this.localeData().postformat(output);
3377    }
3378
3379    function from (time, withoutSuffix) {
3380        if (this.isValid() &&
3381                ((isMoment(time) && time.isValid()) ||
3382                 createLocal(time).isValid())) {
3383            return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
3384        } else {
3385            return this.localeData().invalidDate();
3386        }
3387    }
3388
3389    function fromNow (withoutSuffix) {
3390        return this.from(createLocal(), withoutSuffix);
3391    }
3392
3393    function to (time, withoutSuffix) {
3394        if (this.isValid() &&
3395                ((isMoment(time) && time.isValid()) ||
3396                 createLocal(time).isValid())) {
3397            return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
3398        } else {
3399            return this.localeData().invalidDate();
3400        }
3401    }
3402
3403    function toNow (withoutSuffix) {
3404        return this.to(createLocal(), withoutSuffix);
3405    }
3406
3407    // If passed a locale key, it will set the locale for this
3408    // instance.  Otherwise, it will return the locale configuration
3409    // variables for this instance.
3410    function locale (key) {
3411        var newLocaleData;
3412
3413        if (key === undefined) {
3414            return this._locale._abbr;
3415        } else {
3416            newLocaleData = getLocale(key);
3417            if (newLocaleData != null) {
3418                this._locale = newLocaleData;
3419            }
3420            return this;
3421        }
3422    }
3423
3424    var lang = deprecate(
3425        'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
3426        function (key) {
3427            if (key === undefined) {
3428                return this.localeData();
3429            } else {
3430                return this.locale(key);
3431            }
3432        }
3433    );
3434
3435    function localeData () {
3436        return this._locale;
3437    }
3438
3439    var MS_PER_SECOND = 1000;
3440    var MS_PER_MINUTE = 60 * MS_PER_SECOND;
3441    var MS_PER_HOUR = 60 * MS_PER_MINUTE;
3442    var MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
3443
3444    // actual modulo - handles negative numbers (for dates before 1970):
3445    function mod$1(dividend, divisor) {
3446        return (dividend % divisor + divisor) % divisor;
3447    }
3448
3449    function localStartOfDate(y, m, d) {
3450        // the date constructor remaps years 0-99 to 1900-1999
3451        if (y < 100 && y >= 0) {
3452            // preserve leap years using a full 400 year cycle, then reset
3453            return new Date(y + 400, m, d) - MS_PER_400_YEARS;
3454        } else {
3455            return new Date(y, m, d).valueOf();
3456        }
3457    }
3458
3459    function utcStartOfDate(y, m, d) {
3460        // Date.UTC remaps years 0-99 to 1900-1999
3461        if (y < 100 && y >= 0) {
3462            // preserve leap years using a full 400 year cycle, then reset
3463            return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
3464        } else {
3465            return Date.UTC(y, m, d);
3466        }
3467    }
3468
3469    function startOf (units) {
3470        var time;
3471        units = normalizeUnits(units);
3472        if (units === undefined || units === 'millisecond' || !this.isValid()) {
3473            return this;
3474        }
3475
3476        var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
3477
3478        switch (units) {
3479            case 'year':
3480                time = startOfDate(this.year(), 0, 1);
3481                break;
3482            case 'quarter':
3483                time = startOfDate(this.year(), this.month() - this.month() % 3, 1);
3484                break;
3485            case 'month':
3486                time = startOfDate(this.year(), this.month(), 1);
3487                break;
3488            case 'week':
3489                time = startOfDate(this.year(), this.month(), this.date() - this.weekday());
3490                break;
3491            case 'isoWeek':
3492                time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1));
3493                break;
3494            case 'day':
3495            case 'date':
3496                time = startOfDate(this.year(), this.month(), this.date());
3497                break;
3498            case 'hour':
3499                time = this._d.valueOf();
3500                time -= mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR);
3501                break;
3502            case 'minute':
3503                time = this._d.valueOf();
3504                time -= mod$1(time, MS_PER_MINUTE);
3505                break;
3506            case 'second':
3507                time = this._d.valueOf();
3508                time -= mod$1(time, MS_PER_SECOND);
3509                break;
3510        }
3511
3512        this._d.setTime(time);
3513        hooks.updateOffset(this, true);
3514        return this;
3515    }
3516
3517    function endOf (units) {
3518        var time;
3519        units = normalizeUnits(units);
3520        if (units === undefined || units === 'millisecond' || !this.isValid()) {
3521            return this;
3522        }
3523
3524        var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
3525
3526        switch (units) {
3527            case 'year':
3528                time = startOfDate(this.year() + 1, 0, 1) - 1;
3529                break;
3530            case 'quarter':
3531                time = startOfDate(this.year(), this.month() - this.month() % 3 + 3, 1) - 1;
3532                break;
3533            case 'month':
3534                time = startOfDate(this.year(), this.month() + 1, 1) - 1;
3535                break;
3536            case 'week':
3537                time = startOfDate(this.year(), this.month(), this.date() - this.weekday() + 7) - 1;
3538                break;
3539            case 'isoWeek':
3540                time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1) + 7) - 1;
3541                break;
3542            case 'day':
3543            case 'date':
3544                time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
3545                break;
3546            case 'hour':
3547                time = this._d.valueOf();
3548                time += MS_PER_HOUR - mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR) - 1;
3549                break;
3550            case 'minute':
3551                time = this._d.valueOf();
3552                time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
3553                break;
3554            case 'second':
3555                time = this._d.valueOf();
3556                time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
3557                break;
3558        }
3559
3560        this._d.setTime(time);
3561        hooks.updateOffset(this, true);
3562        return this;
3563    }
3564
3565    function valueOf () {
3566        return this._d.valueOf() - ((this._offset || 0) * 60000);
3567    }
3568
3569    function unix () {
3570        return Math.floor(this.valueOf() / 1000);
3571    }
3572
3573    function toDate () {
3574        return new Date(this.valueOf());
3575    }
3576
3577    function toArray () {
3578        var m = this;
3579        return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
3580    }
3581
3582    function toObject () {
3583        var m = this;
3584        return {
3585            years: m.year(),
3586            months: m.month(),
3587            date: m.date(),
3588            hours: m.hours(),
3589            minutes: m.minutes(),
3590            seconds: m.seconds(),
3591            milliseconds: m.milliseconds()
3592        };
3593    }
3594
3595    function toJSON () {
3596        // new Date(NaN).toJSON() === null
3597        return this.isValid() ? this.toISOString() : null;
3598    }
3599
3600    function isValid$2 () {
3601        return isValid(this);
3602    }
3603
3604    function parsingFlags () {
3605        return extend({}, getParsingFlags(this));
3606    }
3607
3608    function invalidAt () {
3609        return getParsingFlags(this).overflow;
3610    }
3611
3612    function creationData() {
3613        return {
3614            input: this._i,
3615            format: this._f,
3616            locale: this._locale,
3617            isUTC: this._isUTC,
3618            strict: this._strict
3619        };
3620    }
3621
3622    // FORMATTING
3623
3624    addFormatToken(0, ['gg', 2], 0, function () {
3625        return this.weekYear() % 100;
3626    });
3627
3628    addFormatToken(0, ['GG', 2], 0, function () {
3629        return this.isoWeekYear() % 100;
3630    });
3631
3632    function addWeekYearFormatToken (token, getter) {
3633        addFormatToken(0, [token, token.length], 0, getter);
3634    }
3635
3636    addWeekYearFormatToken('gggg',     'weekYear');
3637    addWeekYearFormatToken('ggggg',    'weekYear');
3638    addWeekYearFormatToken('GGGG',  'isoWeekYear');
3639    addWeekYearFormatToken('GGGGG', 'isoWeekYear');
3640
3641    // ALIASES
3642
3643    addUnitAlias('weekYear', 'gg');
3644    addUnitAlias('isoWeekYear', 'GG');
3645
3646    // PRIORITY
3647
3648    addUnitPriority('weekYear', 1);
3649    addUnitPriority('isoWeekYear', 1);
3650
3651
3652    // PARSING
3653
3654    addRegexToken('G',      matchSigned);
3655    addRegexToken('g',      matchSigned);
3656    addRegexToken('GG',     match1to2, match2);
3657    addRegexToken('gg',     match1to2, match2);
3658    addRegexToken('GGGG',   match1to4, match4);
3659    addRegexToken('gggg',   match1to4, match4);
3660    addRegexToken('GGGGG',  match1to6, match6);
3661    addRegexToken('ggggg',  match1to6, match6);
3662
3663    addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
3664        week[token.substr(0, 2)] = toInt(input);
3665    });
3666
3667    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
3668        week[token] = hooks.parseTwoDigitYear(input);
3669    });
3670
3671    // MOMENTS
3672
3673    function getSetWeekYear (input) {
3674        return getSetWeekYearHelper.call(this,
3675                input,
3676                this.week(),
3677                this.weekday(),
3678                this.localeData()._week.dow,
3679                this.localeData()._week.doy);
3680    }
3681
3682    function getSetISOWeekYear (input) {
3683        return getSetWeekYearHelper.call(this,
3684                input, this.isoWeek(), this.isoWeekday(), 1, 4);
3685    }
3686
3687    function getISOWeeksInYear () {
3688        return weeksInYear(this.year(), 1, 4);
3689    }
3690
3691    function getWeeksInYear () {
3692        var weekInfo = this.localeData()._week;
3693        return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
3694    }
3695
3696    function getSetWeekYearHelper(input, week, weekday, dow, doy) {
3697        var weeksTarget;
3698        if (input == null) {
3699            return weekOfYear(this, dow, doy).year;
3700        } else {
3701            weeksTarget = weeksInYear(input, dow, doy);
3702            if (week > weeksTarget) {
3703                week = weeksTarget;
3704            }
3705            return setWeekAll.call(this, input, week, weekday, dow, doy);
3706        }
3707    }
3708
3709    function setWeekAll(weekYear, week, weekday, dow, doy) {
3710        var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
3711            date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
3712
3713        this.year(date.getUTCFullYear());
3714        this.month(date.getUTCMonth());
3715        this.date(date.getUTCDate());
3716        return this;
3717    }
3718
3719    // FORMATTING
3720
3721    addFormatToken('Q', 0, 'Qo', 'quarter');
3722
3723    // ALIASES
3724
3725    addUnitAlias('quarter', 'Q');
3726
3727    // PRIORITY
3728
3729    addUnitPriority('quarter', 7);
3730
3731    // PARSING
3732
3733    addRegexToken('Q', match1);
3734    addParseToken('Q', function (input, array) {
3735        array[MONTH] = (toInt(input) - 1) * 3;
3736    });
3737
3738    // MOMENTS
3739
3740    function getSetQuarter (input) {
3741        return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
3742    }
3743
3744    // FORMATTING
3745
3746    addFormatToken('D', ['DD', 2], 'Do', 'date');
3747
3748    // ALIASES
3749
3750    addUnitAlias('date', 'D');
3751
3752    // PRIORITY
3753    addUnitPriority('date', 9);
3754
3755    // PARSING
3756
3757    addRegexToken('D',  match1to2);
3758    addRegexToken('DD', match1to2, match2);
3759    addRegexToken('Do', function (isStrict, locale) {
3760        // TODO: Remove "ordinalParse" fallback in next major release.
3761        return isStrict ?
3762          (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
3763          locale._dayOfMonthOrdinalParseLenient;
3764    });
3765
3766    addParseToken(['D', 'DD'], DATE);
3767    addParseToken('Do', function (input, array) {
3768        array[DATE] = toInt(input.match(match1to2)[0]);
3769    });
3770
3771    // MOMENTS
3772
3773    var getSetDayOfMonth = makeGetSet('Date', true);
3774
3775    // FORMATTING
3776
3777    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
3778
3779    // ALIASES
3780
3781    addUnitAlias('dayOfYear', 'DDD');
3782
3783    // PRIORITY
3784    addUnitPriority('dayOfYear', 4);
3785
3786    // PARSING
3787
3788    addRegexToken('DDD',  match1to3);
3789    addRegexToken('DDDD', match3);
3790    addParseToken(['DDD', 'DDDD'], function (input, array, config) {
3791        config._dayOfYear = toInt(input);
3792    });
3793
3794    // HELPERS
3795
3796    // MOMENTS
3797
3798    function getSetDayOfYear (input) {
3799        var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
3800        return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
3801    }
3802
3803    // FORMATTING
3804
3805    addFormatToken('m', ['mm', 2], 0, 'minute');
3806
3807    // ALIASES
3808
3809    addUnitAlias('minute', 'm');
3810
3811    // PRIORITY
3812
3813    addUnitPriority('minute', 14);
3814
3815    // PARSING
3816
3817    addRegexToken('m',  match1to2);
3818    addRegexToken('mm', match1to2, match2);
3819    addParseToken(['m', 'mm'], MINUTE);
3820
3821    // MOMENTS
3822
3823    var getSetMinute = makeGetSet('Minutes', false);
3824
3825    // FORMATTING
3826
3827    addFormatToken('s', ['ss', 2], 0, 'second');
3828
3829    // ALIASES
3830
3831    addUnitAlias('second', 's');
3832
3833    // PRIORITY
3834
3835    addUnitPriority('second', 15);
3836
3837    // PARSING
3838
3839    addRegexToken('s',  match1to2);
3840    addRegexToken('ss', match1to2, match2);
3841    addParseToken(['s', 'ss'], SECOND);
3842
3843    // MOMENTS
3844
3845    var getSetSecond = makeGetSet('Seconds', false);
3846
3847    // FORMATTING
3848
3849    addFormatToken('S', 0, 0, function () {
3850        return ~~(this.millisecond() / 100);
3851    });
3852
3853    addFormatToken(0, ['SS', 2], 0, function () {
3854        return ~~(this.millisecond() / 10);
3855    });
3856
3857    addFormatToken(0, ['SSS', 3], 0, 'millisecond');
3858    addFormatToken(0, ['SSSS', 4], 0, function () {
3859        return this.millisecond() * 10;
3860    });
3861    addFormatToken(0, ['SSSSS', 5], 0, function () {
3862        return this.millisecond() * 100;
3863    });
3864    addFormatToken(0, ['SSSSSS', 6], 0, function () {
3865        return this.millisecond() * 1000;
3866    });
3867    addFormatToken(0, ['SSSSSSS', 7], 0, function () {
3868        return this.millisecond() * 10000;
3869    });
3870    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
3871        return this.millisecond() * 100000;
3872    });
3873    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
3874        return this.millisecond() * 1000000;
3875    });
3876
3877
3878    // ALIASES
3879
3880    addUnitAlias('millisecond', 'ms');
3881
3882    // PRIORITY
3883
3884    addUnitPriority('millisecond', 16);
3885
3886    // PARSING
3887
3888    addRegexToken('S',    match1to3, match1);
3889    addRegexToken('SS',   match1to3, match2);
3890    addRegexToken('SSS',  match1to3, match3);
3891
3892    var token;
3893    for (token = 'SSSS'; token.length <= 9; token += 'S') {
3894        addRegexToken(token, matchUnsigned);
3895    }
3896
3897    function parseMs(input, array) {
3898        array[MILLISECOND] = toInt(('0.' + input) * 1000);
3899    }
3900
3901    for (token = 'S'; token.length <= 9; token += 'S') {
3902        addParseToken(token, parseMs);
3903    }
3904    // MOMENTS
3905
3906    var getSetMillisecond = makeGetSet('Milliseconds', false);
3907
3908    // FORMATTING
3909
3910    addFormatToken('z',  0, 0, 'zoneAbbr');
3911    addFormatToken('zz', 0, 0, 'zoneName');
3912
3913    // MOMENTS
3914
3915    function getZoneAbbr () {
3916        return this._isUTC ? 'UTC' : '';
3917    }
3918
3919    function getZoneName () {
3920        return this._isUTC ? 'Coordinated Universal Time' : '';
3921    }
3922
3923    var proto = Moment.prototype;
3924
3925    proto.add               = add;
3926    proto.calendar          = calendar$1;
3927    proto.clone             = clone;
3928    proto.diff              = diff;
3929    proto.endOf             = endOf;
3930    proto.format            = format;
3931    proto.from              = from;
3932    proto.fromNow           = fromNow;
3933    proto.to                = to;
3934    proto.toNow             = toNow;
3935    proto.get               = stringGet;
3936    proto.invalidAt         = invalidAt;
3937    proto.isAfter           = isAfter;
3938    proto.isBefore          = isBefore;
3939    proto.isBetween         = isBetween;
3940    proto.isSame            = isSame;
3941    proto.isSameOrAfter     = isSameOrAfter;
3942    proto.isSameOrBefore    = isSameOrBefore;
3943    proto.isValid           = isValid$2;
3944    proto.lang              = lang;
3945    proto.locale            = locale;
3946    proto.localeData        = localeData;
3947    proto.max               = prototypeMax;
3948    proto.min               = prototypeMin;
3949    proto.parsingFlags      = parsingFlags;
3950    proto.set               = stringSet;
3951    proto.startOf           = startOf;
3952    proto.subtract          = subtract;
3953    proto.toArray           = toArray;
3954    proto.toObject          = toObject;
3955    proto.toDate            = toDate;
3956    proto.toISOString       = toISOString;
3957    proto.inspect           = inspect;
3958    proto.toJSON            = toJSON;
3959    proto.toString          = toString;
3960    proto.unix              = unix;
3961    proto.valueOf           = valueOf;
3962    proto.creationData      = creationData;
3963    proto.year       = getSetYear;
3964    proto.isLeapYear = getIsLeapYear;
3965    proto.weekYear    = getSetWeekYear;
3966    proto.isoWeekYear = getSetISOWeekYear;
3967    proto.quarter = proto.quarters = getSetQuarter;
3968    proto.month       = getSetMonth;
3969    proto.daysInMonth = getDaysInMonth;
3970    proto.week           = proto.weeks        = getSetWeek;
3971    proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
3972    proto.weeksInYear    = getWeeksInYear;
3973    proto.isoWeeksInYear = getISOWeeksInYear;
3974    proto.date       = getSetDayOfMonth;
3975    proto.day        = proto.days             = getSetDayOfWeek;
3976    proto.weekday    = getSetLocaleDayOfWeek;
3977    proto.isoWeekday = getSetISODayOfWeek;
3978    proto.dayOfYear  = getSetDayOfYear;
3979    proto.hour = proto.hours = getSetHour;
3980    proto.minute = proto.minutes = getSetMinute;
3981    proto.second = proto.seconds = getSetSecond;
3982    proto.millisecond = proto.milliseconds = getSetMillisecond;
3983    proto.utcOffset            = getSetOffset;
3984    proto.utc                  = setOffsetToUTC;
3985    proto.local                = setOffsetToLocal;
3986    proto.parseZone            = setOffsetToParsedOffset;
3987    proto.hasAlignedHourOffset = hasAlignedHourOffset;
3988    proto.isDST                = isDaylightSavingTime;
3989    proto.isLocal              = isLocal;
3990    proto.isUtcOffset          = isUtcOffset;
3991    proto.isUtc                = isUtc;
3992    proto.isUTC                = isUtc;
3993    proto.zoneAbbr = getZoneAbbr;
3994    proto.zoneName = getZoneName;
3995    proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
3996    proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
3997    proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
3998    proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
3999    proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);
4000
4001    function createUnix (input) {
4002        return createLocal(input * 1000);
4003    }
4004
4005    function createInZone () {
4006        return createLocal.apply(null, arguments).parseZone();
4007    }
4008
4009    function preParsePostFormat (string) {
4010        return string;
4011    }
4012
4013    var proto$1 = Locale.prototype;
4014
4015    proto$1.calendar        = calendar;
4016    proto$1.longDateFormat  = longDateFormat;
4017    proto$1.invalidDate     = invalidDate;
4018    proto$1.ordinal         = ordinal;
4019    proto$1.preparse        = preParsePostFormat;
4020    proto$1.postformat      = preParsePostFormat;
4021    proto$1.relativeTime    = relativeTime;
4022    proto$1.pastFuture      = pastFuture;
4023    proto$1.set             = set;
4024
4025    proto$1.months            =        localeMonths;
4026    proto$1.monthsShort       =        localeMonthsShort;
4027    proto$1.monthsParse       =        localeMonthsParse;
4028    proto$1.monthsRegex       = monthsRegex;
4029    proto$1.monthsShortRegex  = monthsShortRegex;
4030    proto$1.week = localeWeek;
4031    proto$1.firstDayOfYear = localeFirstDayOfYear;
4032    proto$1.firstDayOfWeek = localeFirstDayOfWeek;
4033
4034    proto$1.weekdays       =        localeWeekdays;
4035    proto$1.weekdaysMin    =        localeWeekdaysMin;
4036    proto$1.weekdaysShort  =        localeWeekdaysShort;
4037    proto$1.weekdaysParse  =        localeWeekdaysParse;
4038
4039    proto$1.weekdaysRegex       =        weekdaysRegex;
4040    proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
4041    proto$1.weekdaysMinRegex    =        weekdaysMinRegex;
4042
4043    proto$1.isPM = localeIsPM;
4044    proto$1.meridiem = localeMeridiem;
4045
4046    function get$1 (format, index, field, setter) {
4047        var locale = getLocale();
4048        var utc = createUTC().set(setter, index);
4049        return locale[field](utc, format);
4050    }
4051
4052    function listMonthsImpl (format, index, field) {
4053        if (isNumber(format)) {
4054            index = format;
4055            format = undefined;
4056        }
4057
4058        format = format || '';
4059
4060        if (index != null) {
4061            return get$1(format, index, field, 'month');
4062        }
4063
4064        var i;
4065        var out = [];
4066        for (i = 0; i < 12; i++) {
4067            out[i] = get$1(format, i, field, 'month');
4068        }
4069        return out;
4070    }
4071
4072    // ()
4073    // (5)
4074    // (fmt, 5)
4075    // (fmt)
4076    // (true)
4077    // (true, 5)
4078    // (true, fmt, 5)
4079    // (true, fmt)
4080    function listWeekdaysImpl (localeSorted, format, index, field) {
4081        if (typeof localeSorted === 'boolean') {
4082            if (isNumber(format)) {
4083                index = format;
4084                format = undefined;
4085            }
4086
4087            format = format || '';
4088        } else {
4089            format = localeSorted;
4090            index = format;
4091            localeSorted = false;
4092
4093            if (isNumber(format)) {
4094                index = format;
4095                format = undefined;
4096            }
4097
4098            format = format || '';
4099        }
4100
4101        var locale = getLocale(),
4102            shift = localeSorted ? locale._week.dow : 0;
4103
4104        if (index != null) {
4105            return get$1(format, (index + shift) % 7, field, 'day');
4106        }
4107
4108        var i;
4109        var out = [];
4110        for (i = 0; i < 7; i++) {
4111            out[i] = get$1(format, (i + shift) % 7, field, 'day');
4112        }
4113        return out;
4114    }
4115
4116    function listMonths (format, index) {
4117        return listMonthsImpl(format, index, 'months');
4118    }
4119
4120    function listMonthsShort (format, index) {
4121        return listMonthsImpl(format, index, 'monthsShort');
4122    }
4123
4124    function listWeekdays (localeSorted, format, index) {
4125        return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
4126    }
4127
4128    function listWeekdaysShort (localeSorted, format, index) {
4129        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
4130    }
4131
4132    function listWeekdaysMin (localeSorted, format, index) {
4133        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
4134    }
4135
4136    getSetGlobalLocale('en', {
4137        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
4138        ordinal : function (number) {
4139            var b = number % 10,
4140                output = (toInt(number % 100 / 10) === 1) ? 'th' :
4141                (b === 1) ? 'st' :
4142                (b === 2) ? 'nd' :
4143                (b === 3) ? 'rd' : 'th';
4144            return number + output;
4145        }
4146    });
4147
4148    // Side effect imports
4149
4150    hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
4151    hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);
4152
4153    var mathAbs = Math.abs;
4154
4155    function abs () {
4156        var data           = this._data;
4157
4158        this._milliseconds = mathAbs(this._milliseconds);
4159        this._days         = mathAbs(this._days);
4160        this._months       = mathAbs(this._months);
4161
4162        data.milliseconds  = mathAbs(data.milliseconds);
4163        data.seconds       = mathAbs(data.seconds);
4164        data.minutes       = mathAbs(data.minutes);
4165        data.hours         = mathAbs(data.hours);
4166        data.months        = mathAbs(data.months);
4167        data.years         = mathAbs(data.years);
4168
4169        return this;
4170    }
4171
4172    function addSubtract$1 (duration, input, value, direction) {
4173        var other = createDuration(input, value);
4174
4175        duration._milliseconds += direction * other._milliseconds;
4176        duration._days         += direction * other._days;
4177        duration._months       += direction * other._months;
4178
4179        return duration._bubble();
4180    }
4181
4182    // supports only 2.0-style add(1, 's') or add(duration)
4183    function add$1 (input, value) {
4184        return addSubtract$1(this, input, value, 1);
4185    }
4186
4187    // supports only 2.0-style subtract(1, 's') or subtract(duration)
4188    function subtract$1 (input, value) {
4189        return addSubtract$1(this, input, value, -1);
4190    }
4191
4192    function absCeil (number) {
4193        if (number < 0) {
4194            return Math.floor(number);
4195        } else {
4196            return Math.ceil(number);
4197        }
4198    }
4199
4200    function bubble () {
4201        var milliseconds = this._milliseconds;
4202        var days         = this._days;
4203        var months       = this._months;
4204        var data         = this._data;
4205        var seconds, minutes, hours, years, monthsFromDays;
4206
4207        // if we have a mix of positive and negative values, bubble down first
4208        // check: https://github.com/moment/moment/issues/2166
4209        if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
4210                (milliseconds <= 0 && days <= 0 && months <= 0))) {
4211            milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
4212            days = 0;
4213            months = 0;
4214        }
4215
4216        // The following code bubbles up values, see the tests for
4217        // examples of what that means.
4218        data.milliseconds = milliseconds % 1000;
4219
4220        seconds           = absFloor(milliseconds / 1000);
4221        data.seconds      = seconds % 60;
4222
4223        minutes           = absFloor(seconds / 60);
4224        data.minutes      = minutes % 60;
4225
4226        hours             = absFloor(minutes / 60);
4227        data.hours        = hours % 24;
4228
4229        days += absFloor(hours / 24);
4230
4231        // convert days to months
4232        monthsFromDays = absFloor(daysToMonths(days));
4233        months += monthsFromDays;
4234        days -= absCeil(monthsToDays(monthsFromDays));
4235
4236        // 12 months -> 1 year
4237        years = absFloor(months / 12);
4238        months %= 12;
4239
4240        data.days   = days;
4241        data.months = months;
4242        data.years  = years;
4243
4244        return this;
4245    }
4246
4247    function daysToMonths (days) {
4248        // 400 years have 146097 days (taking into account leap year rules)
4249        // 400 years have 12 months === 4800
4250        return days * 4800 / 146097;
4251    }
4252
4253    function monthsToDays (months) {
4254        // the reverse of daysToMonths
4255        return months * 146097 / 4800;
4256    }
4257
4258    function as (units) {
4259        if (!this.isValid()) {
4260            return NaN;
4261        }
4262        var days;
4263        var months;
4264        var milliseconds = this._milliseconds;
4265
4266        units = normalizeUnits(units);
4267
4268        if (units === 'month' || units === 'quarter' || units === 'year') {
4269            days = this._days + milliseconds / 864e5;
4270            months = this._months + daysToMonths(days);
4271            switch (units) {
4272                case 'month':   return months;
4273                case 'quarter': return months / 3;
4274                case 'year':    return months / 12;
4275            }
4276        } else {
4277            // handle milliseconds separately because of floating point math errors (issue #1867)
4278            days = this._days + Math.round(monthsToDays(this._months));
4279            switch (units) {
4280                case 'week'   : return days / 7     + milliseconds / 6048e5;
4281                case 'day'    : return days         + milliseconds / 864e5;
4282                case 'hour'   : return days * 24    + milliseconds / 36e5;
4283                case 'minute' : return days * 1440  + milliseconds / 6e4;
4284                case 'second' : return days * 86400 + milliseconds / 1000;
4285                // Math.floor prevents floating point math errors here
4286                case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
4287                default: throw new Error('Unknown unit ' + units);
4288            }
4289        }
4290    }
4291
4292    // TODO: Use this.as('ms')?
4293    function valueOf$1 () {
4294        if (!this.isValid()) {
4295            return NaN;
4296        }
4297        return (
4298            this._milliseconds +
4299            this._days * 864e5 +
4300            (this._months % 12) * 2592e6 +
4301            toInt(this._months / 12) * 31536e6
4302        );
4303    }
4304
4305    function makeAs (alias) {
4306        return function () {
4307            return this.as(alias);
4308        };
4309    }
4310
4311    var asMilliseconds = makeAs('ms');
4312    var asSeconds      = makeAs('s');
4313    var asMinutes      = makeAs('m');
4314    var asHours        = makeAs('h');
4315    var asDays         = makeAs('d');
4316    var asWeeks        = makeAs('w');
4317    var asMonths       = makeAs('M');
4318    var asQuarters     = makeAs('Q');
4319    var asYears        = makeAs('y');
4320
4321    function clone$1 () {
4322        return createDuration(this);
4323    }
4324
4325    function get$2 (units) {
4326        units = normalizeUnits(units);
4327        return this.isValid() ? this[units + 's']() : NaN;
4328    }
4329
4330    function makeGetter(name) {
4331        return function () {
4332            return this.isValid() ? this._data[name] : NaN;
4333        };
4334    }
4335
4336    var milliseconds = makeGetter('milliseconds');
4337    var seconds      = makeGetter('seconds');
4338    var minutes      = makeGetter('minutes');
4339    var hours        = makeGetter('hours');
4340    var days         = makeGetter('days');
4341    var months       = makeGetter('months');
4342    var years        = makeGetter('years');
4343
4344    function weeks () {
4345        return absFloor(this.days() / 7);
4346    }
4347
4348    var round = Math.round;
4349    var thresholds = {
4350        ss: 44,         // a few seconds to seconds
4351        s : 45,         // seconds to minute
4352        m : 45,         // minutes to hour
4353        h : 22,         // hours to day
4354        d : 26,         // days to month
4355        M : 11          // months to year
4356    };
4357
4358    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
4359    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
4360        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
4361    }
4362
4363    function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
4364        var duration = createDuration(posNegDuration).abs();
4365        var seconds  = round(duration.as('s'));
4366        var minutes  = round(duration.as('m'));
4367        var hours    = round(duration.as('h'));
4368        var days     = round(duration.as('d'));
4369        var months   = round(duration.as('M'));
4370        var years    = round(duration.as('y'));
4371
4372        var a = seconds <= thresholds.ss && ['s', seconds]  ||
4373                seconds < thresholds.s   && ['ss', seconds] ||
4374                minutes <= 1             && ['m']           ||
4375                minutes < thresholds.m   && ['mm', minutes] ||
4376                hours   <= 1             && ['h']           ||
4377                hours   < thresholds.h   && ['hh', hours]   ||
4378                days    <= 1             && ['d']           ||
4379                days    < thresholds.d   && ['dd', days]    ||
4380                months  <= 1             && ['M']           ||
4381                months  < thresholds.M   && ['MM', months]  ||
4382                years   <= 1             && ['y']           || ['yy', years];
4383
4384        a[2] = withoutSuffix;
4385        a[3] = +posNegDuration > 0;
4386        a[4] = locale;
4387        return substituteTimeAgo.apply(null, a);
4388    }
4389
4390    // This function allows you to set the rounding function for relative time strings
4391    function getSetRelativeTimeRounding (roundingFunction) {
4392        if (roundingFunction === undefined) {
4393            return round;
4394        }
4395        if (typeof(rou
vendor: 7,407 bytes, lines 4395-4602
4395ndingFunction) === 'function') {
4396            round = roundingFunction;
4397            return true;
4398        }
4399        return false;
4400    }
4401
4402    // This function allows you to set a threshold for relative time strings
4403    function getSetRelativeTimeThreshold (threshold, limit) {
4404        if (thresholds[threshold] === undefined) {
4405            return false;
4406        }
4407        if (limit === undefined) {
4408            return thresholds[threshold];
4409        }
4410        thresholds[threshold] = limit;
4411        if (threshold === 's') {
4412            thresholds.ss = limit - 1;
4413        }
4414        return true;
4415    }
4416
4417    function humanize (withSuffix) {
4418        if (!this.isValid()) {
4419            return this.localeData().invalidDate();
4420        }
4421
4422        var locale = this.localeData();
4423        var output = relativeTime$1(this, !withSuffix, locale);
4424
4425        if (withSuffix) {
4426            output = locale.pastFuture(+this, output);
4427        }
4428
4429        return locale.postformat(output);
4430    }
4431
4432    var abs$1 = Math.abs;
4433
4434    function sign(x) {
4435        return ((x > 0) - (x < 0)) || +x;
4436    }
4437
4438    function toISOString$1() {
4439        // for ISO strings we do not use the normal bubbling rules:
4440        //  * milliseconds bubble up until they become hours
4441        //  * days do not bubble at all
4442        //  * months bubble up until they become years
4443        // This is because there is no context-free conversion between hours and days
4444        // (think of clock changes)
4445        // and also not between days and months (28-31 days per month)
4446        if (!this.isValid()) {
4447            return this.localeData().invalidDate();
4448        }
4449
4450        var seconds = abs$1(this._milliseconds) / 1000;
4451        var days         = abs$1(this._days);
4452        var months       = abs$1(this._months);
4453        var minutes, hours, years;
4454
4455        // 3600 seconds -> 60 minutes -> 1 hour
4456        minutes           = absFloor(seconds / 60);
4457        hours             = absFloor(minutes / 60);
4458        seconds %= 60;
4459        minutes %= 60;
4460
4461        // 12 months -> 1 year
4462        years  = absFloor(months / 12);
4463        months %= 12;
4464
4465
4466        // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
4467        var Y = years;
4468        var M = months;
4469        var D = days;
4470        var h = hours;
4471        var m = minutes;
4472        var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
4473        var total = this.asSeconds();
4474
4475        if (!total) {
4476            // this is the same as C#'s (Noda) and python (isodate)...
4477            // but not other JS (goog.date)
4478            return 'P0D';
4479        }
4480
4481        var totalSign = total < 0 ? '-' : '';
4482        var ymSign = sign(this._months) !== sign(total) ? '-' : '';
4483        var daysSign = sign(this._days) !== sign(total) ? '-' : '';
4484        var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
4485
4486        return totalSign + 'P' +
4487            (Y ? ymSign + Y + 'Y' : '') +
4488            (M ? ymSign + M + 'M' : '') +
4489            (D ? daysSign + D + 'D' : '') +
4490            ((h || m || s) ? 'T' : '') +
4491            (h ? hmsSign + h + 'H' : '') +
4492            (m ? hmsSign + m + 'M' : '') +
4493            (s ? hmsSign + s + 'S' : '');
4494    }
4495
4496    var proto$2 = Duration.prototype;
4497
4498    proto$2.isValid        = isValid$1;
4499    proto$2.abs            = abs;
4500    proto$2.add            = add$1;
4501    proto$2.subtract       = subtract$1;
4502    proto$2.as             = as;
4503    proto$2.asMilliseconds = asMilliseconds;
4504    proto$2.asSeconds      = asSeconds;
4505    proto$2.asMinutes      = asMinutes;
4506    proto$2.asHours        = asHours;
4507    proto$2.asDays         = asDays;
4508    proto$2.asWeeks        = asWeeks;
4509    proto$2.asMonths       = asMonths;
4510    proto$2.asQuarters     = asQuarters;
4511    proto$2.asYears        = asYears;
4512    proto$2.valueOf        = valueOf$1;
4513    proto$2._bubble        = bubble;
4514    proto$2.clone          = clone$1;
4515    proto$2.get            = get$2;
4516    proto$2.milliseconds   = milliseconds;
4517    proto$2.seconds        = seconds;
4518    proto$2.minutes        = minutes;
4519    proto$2.hours          = hours;
4520    proto$2.days           = days;
4521    proto$2.weeks          = weeks;
4522    proto$2.months         = months;
4523    proto$2.years          = years;
4524    proto$2.humanize       = humanize;
4525    proto$2.toISOString    = toISOString$1;
4526    proto$2.toString       = toISOString$1;
4527    proto$2.toJSON         = toISOString$1;
4528    proto$2.locale         = locale;
4529    proto$2.localeData     = localeData;
4530
4531    proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
4532    proto$2.lang = lang;
4533
4534    // Side effect imports
4535
4536    // FORMATTING
4537
4538    addFormatToken('X', 0, 0, 'unix');
4539    addFormatToken('x', 0, 0, 'valueOf');
4540
4541    // PARSING
4542
4543    addRegexToken('x', matchSigned);
4544    addRegexToken('X', matchTimestamp);
4545    addParseToken('X', function (input, array, config) {
4546        config._d = new Date(parseFloat(input, 10) * 1000);
4547    });
4548    addParseToken('x', function (input, array, config) {
4549        config._d = new Date(toInt(input));
4550    });
4551
4552    // Side effect imports
4553
4554
4555    hooks.version = '2.24.0';
4556
4557    setHookCallback(createLocal);
4558
4559    hooks.fn                    = proto;
4560    hooks.min                   = min;
4561    hooks.max                   = max;
4562    hooks.now                   = now;
4563    hooks.utc                   = createUTC;
4564    hooks.unix                  = createUnix;
4565    hooks.months                = listMonths;
4566    hooks.isDate                = isDate;
4567    hooks.locale                = getSetGlobalLocale;
4568    hooks.invalid               = createInvalid;
4569    hooks.duration              = createDuration;
4570    hooks.isMoment              = isMoment;
4571    hooks.weekdays              = listWeekdays;
4572    hooks.parseZone             = createInZone;
4573    hooks.localeData            = getLocale;
4574    hooks.isDuration            = isDuration;
4575    hooks.monthsShort           = listMonthsShort;
4576    hooks.weekdaysMin           = listWeekdaysMin;
4577    hooks.defineLocale          = defineLocale;
4578    hooks.updateLocale          = updateLocale;
4579    hooks.locales               = listLocales;
4580    hooks.weekdaysShort         = listWeekdaysShort;
4581    hooks.normalizeUnits        = normalizeUnits;
4582    hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
4583    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
4584    hooks.calendarFormat        = getCalendarFormat;
4585    hooks.prototype             = proto;
4586
4587    // currently HTML5 input type only supports 24-hour formats
4588    hooks.HTML5_FMT = {
4589        DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm',             // <input type="datetime-local" />
4590        DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss',  // <input type="datetime-local" step="1" />
4591        DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS',   // <input type="datetime-local" step="0.001" />
4592        DATE: 'YYYY-MM-DD',                             // <input type="date" />
4593        TIME: 'HH:mm',                                  // <input type="time" />
4594        TIME_SECONDS: 'HH:mm:ss',                       // <input type="time" step="1" />
4595        TIME_MS: 'HH:mm:ss.SSS',                        // <input type="time" step="0.001" />
4596        WEEK: 'GGGG-[W]WW',                             // <input type="week" />
4597        MONTH: 'YYYY-MM'                                // <input type="month" />
4598    };
4599
4600    return hooks;
4601
4602})));

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