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qwen/nodejs/node_modules/moment-timezone/moment-timezone.js

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+//! moment-timezone.js
+//! version : 0.5.48
+//! Copyright (c) JS Foundation and other contributors
+//! license : MIT
+//! github.com/moment/moment-timezone
+
+(function (root, factory) {
+	"use strict";
+
+	/*global define*/
+	if (typeof module === 'object' && module.exports) {
+		module.exports = factory(require('moment')); // Node
+	} else if (typeof define === 'function' && define.amd) {
+		define(['moment'], factory);                 // AMD
+	} else {
+		factory(root.moment);                        // Browser
+	}
+}(this, function (moment) {
+	"use strict";
+
+	// Resolves es6 module loading issue
+	if (moment.version === undefined && moment.default) {
+		moment = moment.default;
+	}
+
+	// Do not load moment-timezone a second time.
+	// if (moment.tz !== undefined) {
+	// 	logError('Moment Timezone ' + moment.tz.version + ' was already loaded ' + (moment.tz.dataVersion ? 'with data from ' : 'without any data') + moment.tz.dataVersion);
+	// 	return moment;
+	// }
+
+	var VERSION = "0.5.48",
+		zones = {},
+		links = {},
+		countries = {},
+		names = {},
+		guesses = {},
+		cachedGuess;
+
+	if (!moment || typeof moment.version !== 'string') {
+		logError('Moment Timezone requires Moment.js. See https://momentjs.com/timezone/docs/#/use-it/browser/');
+	}
+
+	var momentVersion = moment.version.split('.'),
+		major = +momentVersion[0],
+		minor = +momentVersion[1];
+
+	// Moment.js version check
+	if (major < 2 || (major === 2 && minor < 6)) {
+		logError('Moment Timezone requires Moment.js >= 2.6.0. You are using Moment.js ' + moment.version + '. See momentjs.com');
+	}
+
+	/************************************
+		Unpacking
+	************************************/
+
+	function charCodeToInt(charCode) {
+		if (charCode > 96) {
+			return charCode - 87;
+		} else if (charCode > 64) {
+			return charCode - 29;
+		}
+		return charCode - 48;
+	}
+
+	function unpackBase60(string) {
+		var i = 0,
+			parts = string.split('.'),
+			whole = parts[0],
+			fractional = parts[1] || '',
+			multiplier = 1,
+			num,
+			out = 0,
+			sign = 1;
+
+		// handle negative numbers
+		if (string.charCodeAt(0) === 45) {
+			i = 1;
+			sign = -1;
+		}
+
+		// handle digits before the decimal
+		for (i; i < whole.length; i++) {
+			num = charCodeToInt(whole.charCodeAt(i));
+			out = 60 * out + num;
+		}
+
+		// handle digits after the decimal
+		for (i = 0; i < fractional.length; i++) {
+			multiplier = multiplier / 60;
+			num = charCodeToInt(fractional.charCodeAt(i));
+			out += num * multiplier;
+		}
+
+		return out * sign;
+	}
+
+	function arrayToInt (array) {
+		for (var i = 0; i < array.length; i++) {
+			array[i] = unpackBase60(array[i]);
+		}
+	}
+
+	function intToUntil (array, length) {
+		for (var i = 0; i < length; i++) {
+			array[i] = Math.round((array[i - 1] || 0) + (array[i] * 60000)); // minutes to milliseconds
+		}
+
+		array[length - 1] = Infinity;
+	}
+
+	function mapIndices (source, indices) {
+		var out = [], i;
+
+		for (i = 0; i < indices.length; i++) {
+			out[i] = source[indices[i]];
+		}
+
+		return out;
+	}
+
+	function unpack (string) {
+		var data = string.split('|'),
+			offsets = data[2].split(' '),
+			indices = data[3].split(''),
+			untils  = data[4].split(' ');
+
+		arrayToInt(offsets);
+		arrayToInt(indices);
+		arrayToInt(untils);
+
+		intToUntil(untils, indices.length);
+
+		return {
+			name       : data[0],
+			abbrs      : mapIndices(data[1].split(' '), indices),
+			offsets    : mapIndices(offsets, indices),
+			untils     : untils,
+			population : data[5] | 0
+		};
+	}
+
+	/************************************
+		Zone object
+	************************************/
+
+	function Zone (packedString) {
+		if (packedString) {
+			this._set(unpack(packedString));
+		}
+	}
+
+	function closest (num, arr) {
+		var len = arr.length;
+		if (num < arr[0]) {
+			return 0;
+		} else if (len > 1 && arr[len - 1] === Infinity && num >= arr[len - 2]) {
+			return len - 1;
+		} else if (num >= arr[len - 1]) {
+			return -1;
+		}
+
+		var mid;
+		var lo = 0;
+		var hi = len - 1;
+		while (hi - lo > 1) {
+			mid = Math.floor((lo + hi) / 2);
+			if (arr[mid] <= num) {
+				lo = mid;
+			} else {
+				hi = mid;
+			}
+		}
+		return hi;
+	}
+
+	Zone.prototype = {
+		_set : function (unpacked) {
+			this.name       = unpacked.name;
+			this.abbrs      = unpacked.abbrs;
+			this.untils     = unpacked.untils;
+			this.offsets    = unpacked.offsets;
+			this.population = unpacked.population;
+		},
+
+		_index : function (timestamp) {
+			var target = +timestamp,
+				untils = this.untils,
+				i;
+
+			i = closest(target, untils);
+			if (i >= 0) {
+				return i;
+			}
+		},
+
+		countries : function () {
+			var zone_name = this.name;
+			return Object.keys(countries).filter(function (country_code) {
+				return countries[country_code].zones.indexOf(zone_name) !== -1;
+			});
+		},
+
+		parse : function (timestamp) {
+			var target  = +timestamp,
+				offsets = this.offsets,
+				untils  = this.untils,
+				max     = untils.length - 1,
+				offset, offsetNext, offsetPrev, i;
+
+			for (i = 0; i < max; i++) {
+				offset     = offsets[i];
+				offsetNext = offsets[i + 1];
+				offsetPrev = offsets[i ? i - 1 : i];
+
+				if (offset < offsetNext && tz.moveAmbiguousForward) {
+					offset = offsetNext;
+				} else if (offset > offsetPrev && tz.moveInvalidForward) {
+					offset = offsetPrev;
+				}
+
+				if (target < untils[i] - (offset * 60000)) {
+					return offsets[i];
+				}
+			}
+
+			return offsets[max];
+		},
+
+		abbr : function (mom) {
+			return this.abbrs[this._index(mom)];
+		},
+
+		offset : function (mom) {
+			logError("zone.offset has been deprecated in favor of zone.utcOffset");
+			return this.offsets[this._index(mom)];
+		},
+
+		utcOffset : function (mom) {
+			return this.offsets[this._index(mom)];
+		}
+	};
+
+	/************************************
+		Country object
+	************************************/
+
+	function Country (country_name, zone_names) {
+		this.name = country_name;
+		this.zones = zone_names;
+	}
+
+	/************************************
+		Current Timezone
+	************************************/
+
+	function OffsetAt(at) {
+		var timeString = at.toTimeString();
+		var abbr = timeString.match(/\([a-z ]+\)/i);
+		if (abbr && abbr[0]) {
+			// 17:56:31 GMT-0600 (CST)
+			// 17:56:31 GMT-0600 (Central Standard Time)
+			abbr = abbr[0].match(/[A-Z]/g);
+			abbr = abbr ? abbr.join('') : undefined;
+		} else {
+			// 17:56:31 CST
+			// 17:56:31 GMT+0800 (台北標準時間)
+			abbr = timeString.match(/[A-Z]{3,5}/g);
+			abbr = abbr ? abbr[0] : undefined;
+		}
+
+		if (abbr === 'GMT') {
+			abbr = undefined;
+		}
+
+		this.at = +at;
+		this.abbr = abbr;
+		this.offset = at.getTimezoneOffset();
+	}
+
+	function ZoneScore(zone) {
+		this.zone = zone;
+		this.offsetScore = 0;
+		this.abbrScore = 0;
+	}
+
+	ZoneScore.prototype.scoreOffsetAt = function (offsetAt) {
+		this.offsetScore += Math.abs(this.zone.utcOffset(offsetAt.at) - offsetAt.offset);
+		if (this.zone.abbr(offsetAt.at).replace(/[^A-Z]/g, '') !== offsetAt.abbr) {
+			this.abbrScore++;
+		}
+	};
+
+	function findChange(low, high) {
+		var mid, diff;
+
+		while ((diff = ((high.at - low.at) / 12e4 | 0) * 6e4)) {
+			mid = new OffsetAt(new Date(low.at + diff));
+			if (mid.offset === low.offset) {
+				low = mid;
+			} else {
+				high = mid;
+			}
+		}
+
+		return low;
+	}
+
+	function userOffsets() {
+		var startYear = new Date().getFullYear() - 2,
+			last = new OffsetAt(new Date(startYear, 0, 1)),
+			lastOffset = last.offset,
+			offsets = [last],
+			change, next, nextOffset, i;
+
+		for (i = 1; i < 48; i++) {
+			nextOffset = new Date(startYear, i, 1).getTimezoneOffset();
+			if (nextOffset !== lastOffset) {
+				// Create OffsetAt here to avoid unnecessary abbr parsing before checking offsets
+				next = new OffsetAt(new Date(startYear, i, 1));
+				change = findChange(last, next);
+				offsets.push(change);
+				offsets.push(new OffsetAt(new Date(change.at + 6e4)));
+				last = next;
+				lastOffset = nextOffset;
+			}
+		}
+
+		for (i = 0; i < 4; i++) {
+			offsets.push(new OffsetAt(new Date(startYear + i, 0, 1)));
+			offsets.push(new OffsetAt(new Date(startYear + i, 6, 1)));
+		}
+
+		return offsets;
+	}
+
+	function sortZoneScores (a, b) {
+		if (a.offsetScore !== b.offsetScore) {
+			return a.offsetScore - b.offsetScore;
+		}
+		if (a.abbrScore !== b.abbrScore) {
+			return a.abbrScore - b.abbrScore;
+		}
+		if (a.zone.population !== b.zone.population) {
+			return b.zone.population - a.zone.population;
+		}
+		return b.zone.name.localeCompare(a.zone.name);
+	}
+
+	function addToGuesses (name, offsets) {
+		var i, offset;
+		arrayToInt(offsets);
+		for (i = 0; i < offsets.length; i++) {
+			offset = offsets[i];
+			guesses[offset] = guesses[offset] || {};
+			guesses[offset][name] = true;
+		}
+	}
+
+	function guessesForUserOffsets (offsets) {
+		var offsetsLength = offsets.length,
+			filteredGuesses = {},
+			out = [],
+			checkedOffsets = {},
+			i, j, offset, guessesOffset;
+
+		for (i = 0; i < offsetsLength; i++) {
+			offset = offsets[i].offset;
+			if (checkedOffsets.hasOwnProperty(offset)) {
+				continue;
+			}
+			guessesOffset = guesses[offset] || {};
+			for (j in guessesOffset) {
+				if (guessesOffset.hasOwnProperty(j)) {
+					filteredGuesses[j] = true;
+				}
+			}
+			checkedOffsets[offset] = true;
+		}
+
+		for (i in filteredGuesses) {
+			if (filteredGuesses.hasOwnProperty(i)) {
+				out.push(names[i]);
+			}
+		}
+
+		return out;
+	}
+
+	function rebuildGuess () {
+
+		// use Intl API when available and returning valid time zone
+		try {
+			var intlName = Intl.DateTimeFormat().resolvedOptions().timeZone;
+			if (intlName && intlName.length > 3) {
+				var name = names[normalizeName(intlName)];
+				if (name) {
+					return name;
+				}
+				logError("Moment Timezone found " + intlName + " from the Intl api, but did not have that data loaded.");
+			}
+		} catch (e) {
+			// Intl unavailable, fall back to manual guessing.
+		}
+
+		var offsets = userOffsets(),
+			offsetsLength = offsets.length,
+			guesses = guessesForUserOffsets(offsets),
+			zoneScores = [],
+			zoneScore, i, j;
+
+		for (i = 0; i < guesses.length; i++) {
+			zoneScore = new ZoneScore(getZone(guesses[i]), offsetsLength);
+			for (j = 0; j < offsetsLength; j++) {
+				zoneScore.scoreOffsetAt(offsets[j]);
+			}
+			zoneScores.push(zoneScore);
+		}
+
+		zoneScores.sort(sortZoneScores);
+
+		return zoneScores.length > 0 ? zoneScores[0].zone.name : undefined;
+	}
+
+	function guess (ignoreCache) {
+		if (!cachedGuess || ignoreCache) {
+			cachedGuess = rebuildGuess();
+		}
+		return cachedGuess;
+	}
+
+	/************************************
+		Global Methods
+	************************************/
+
+	function normalizeName (name) {
+		return (name || '').toLowerCase().replace(/\//g, '_');
+	}
+
+	function addZone (packed) {
+		var i, name, split, normalized;
+
+		if (typeof packed === "string") {
+			packed = [packed];
+		}
+
+		for (i = 0; i < packed.length; i++) {
+			split = packed[i].split('|');
+			name = split[0];
+			normalized = normalizeName(name);
+			zones[normalized] = packed[i];
+			names[normalized] = name;
+			addToGuesses(normalized, split[2].split(' '));
+		}
+	}
+
+	function getZone (name, caller) {
+
+		name = normalizeName(name);
+
+		var zone = zones[name];
+		var link;
+
+		if (zone instanceof Zone) {
+			return zone;
+		}
+
+		if (typeof zone === 'string') {
+			zone = new Zone(zone);
+			zones[name] = zone;
+			return zone;
+		}
+
+		// Pass getZone to prevent recursion more than 1 level deep
+		if (links[name] && caller !== getZone && (link = getZone(links[name], getZone))) {
+			zone = zones[name] = new Zone();
+			zone._set(link);
+			zone.name = names[name];
+			return zone;
+		}
+
+		return null;
+	}
+
+	function getNames () {
+		var i, out = [];
+
+		for (i in names) {
+			if (names.hasOwnProperty(i) && (zones[i] || zones[links[i]]) && names[i]) {
+				out.push(names[i]);
+			}
+		}
+
+		return out.sort();
+	}
+
+	function getCountryNames () {
+		return Object.keys(countries);
+	}
+
+	function addLink (aliases) {
+		var i, alias, normal0, normal1;
+
+		if (typeof aliases === "string") {
+			aliases = [aliases];
+		}
+
+		for (i = 0; i < aliases.length; i++) {
+			alias = aliases[i].split('|');
+
+			normal0 = normalizeName(alias[0]);
+			normal1 = normalizeName(alias[1]);
+
+			links[normal0] = normal1;
+			names[normal0] = alias[0];
+
+			links[normal1] = normal0;
+			names[normal1] = alias[1];
+		}
+	}
+
+	function addCountries (data) {
+		var i, country_code, country_zones, split;
+		if (!data || !data.length) return;
+		for (i = 0; i < data.length; i++) {
+			split = data[i].split('|');
+			country_code = split[0].toUpperCase();
+			country_zones = split[1].split(' ');
+			countries[country_code] = new Country(
+				country_code,
+				country_zones
+			);
+		}
+	}
+
+	function getCountry (name) {
+		name = name.toUpperCase();
+		return countries[name] || null;
+	}
+
+	function zonesForCountry(country, with_offset) {
+		country = getCountry(country);
+
+		if (!country) return null;
+
+		var zones = country.zones.sort();
+
+		if (with_offset) {
+			return zones.map(function (zone_name) {
+				var zone = getZone(zone_name);
+				return {
+					name: zone_name,
+					offset: zone.utcOffset(new Date())
+				};
+			});
+		}
+
+		return zones;
+	}
+
+	function loadData (data) {
+		addZone(data.zones);
+		addLink(data.links);
+		addCountries(data.countries);
+		tz.dataVersion = data.version;
+	}
+
+	function zoneExists (name) {
+		if (!zoneExists.didShowError) {
+			zoneExists.didShowError = true;
+				logError("moment.tz.zoneExists('" + name + "') has been deprecated in favor of !moment.tz.zone('" + name + "')");
+		}
+		return !!getZone(name);
+	}
+
+	function needsOffset (m) {
+		var isUnixTimestamp = (m._f === 'X' || m._f === 'x');
+		return !!(m._a && (m._tzm === undefined) && !isUnixTimestamp);
+	}
+
+	function logError (message) {
+		if (typeof console !== 'undefined' && typeof console.error === 'function') {
+			console.error(message);
+		}
+	}
+
+	/************************************
+		moment.tz namespace
+	************************************/
+
+	function tz (input) {
+		var args = Array.prototype.slice.call(arguments, 0, -1),
+			name = arguments[arguments.length - 1],
+			out  = moment.utc.apply(null, args),
+			zone;
+
+		if (!moment.isMoment(input) && needsOffset(out) && (zone = getZone(name))) {
+			out.add(zone.parse(out), 'minutes');
+		}
+
+		out.tz(name);
+
+		return out;
+	}
+
+	tz.version      = VERSION;
+	tz.dataVersion  = '';
+	tz._zones       = zones;
+	tz._links       = links;
+	tz._names       = names;
+	tz._countries	= countries;
+	tz.add          = addZone;
+	tz.link         = addLink;
+	tz.load         = loadData;
+	tz.zone         = getZone;
+	tz.zoneExists   = zoneExists; // deprecated in 0.1.0
+	tz.guess        = guess;
+	tz.names        = getNames;
+	tz.Zone         = Zone;
+	tz.unpack       = unpack;
+	tz.unpackBase60 = unpackBase60;
+	tz.needsOffset  = needsOffset;
+	tz.moveInvalidForward   = true;
+	tz.moveAmbiguousForward = false;
+	tz.countries    = getCountryNames;
+	tz.zonesForCountry = zonesForCountry;
+
+	/************************************
+		Interface with Moment.js
+	************************************/
+
+	var fn = moment.fn;
+
+	moment.tz = tz;
+
+	moment.defaultZone = null;
+
+	moment.updateOffset = function (mom, keepTime) {
+		var zone = moment.defaultZone,
+			offset;
+
+		if (mom._z === undefined) {
+			if (zone && needsOffset(mom) && !mom._isUTC && mom.isValid()) {
+				mom._d = moment.utc(mom._a)._d;
+				mom.utc().add(zone.parse(mom), 'minutes');
+			}
+			mom._z = zone;
+		}
+		if (mom._z) {
+			offset = mom._z.utcOffset(mom);
+			if (Math.abs(offset) < 16) {
+				offset = offset / 60;
+			}
+			if (mom.utcOffset !== undefined) {
+				var z = mom._z;
+				mom.utcOffset(-offset, keepTime);
+				mom._z = z;
+			} else {
+				mom.zone(offset, keepTime);
+			}
+		}
+	};
+
+	fn.tz = function (name, keepTime) {
+		if (name) {
+			if (typeof name !== 'string') {
+				throw new Error('Time zone name must be a string, got ' + name + ' [' + typeof name + ']');
+			}
+			this._z = getZone(name);
+			if (this._z) {
+				moment.updateOffset(this, keepTime);
+			} else {
+				logError("Moment Timezone has no data for " + name + ". See http://momentjs.com/timezone/docs/#/data-loading/.");
+			}
+			return this;
+		}
+		if (this._z) { return this._z.name; }
+	};
+
+	function abbrWrap (old) {
+		return function () {
+			if (this._z) { return this._z.abbr(this); }
+			return old.call(this);
+		};
+	}
+
+	function resetZoneWrap (old) {
+		return function () {
+			this._z = null;
+			return old.apply(this, arguments);
+		};
+	}
+
+	function resetZoneWrap2 (old) {
+		return function () {
+			if (arguments.length > 0) this._z = null;
+			return old.apply(this, arguments);
+		};
+	}
+
+	fn.zoneName  = abbrWrap(fn.zoneName);
+	fn.zoneAbbr  = abbrWrap(fn.zoneAbbr);
+	fn.utc       = resetZoneWrap(fn.utc);
+	fn.local     = resetZoneWrap(fn.local);
+	fn.utcOffset = resetZoneWrap2(fn.utcOffset);
+
+	moment.tz.setDefault = function(name) {
+		if (major < 2 || (major === 2 && minor < 9)) {
+			logError('Moment Timezone setDefault() requires Moment.js >= 2.9.0. You are using Moment.js ' + moment.version + '.');
+		}
+		moment.defaultZone = name ? getZone(name) : null;
+		return moment;
+	};
+
+	// Cloning a moment should include the _z property.
+	var momentProperties = moment.momentProperties;
+	if (Object.prototype.toString.call(momentProperties) === '[object Array]') {
+		// moment 2.8.1+
+		momentProperties.push('_z');
+		momentProperties.push('_a');
+	} else if (momentProperties) {
+		// moment 2.7.0
+		momentProperties._z = null;
+	}
+
+	// INJECT DATA
+
+	return moment;
+}));