import { addFormatToken } from '../format/format';
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import { addUnitAlias } from './aliases';
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import { addRegexToken, match1to2, matchWord } from '../parse/regex';
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import { addWeekParseToken } from '../parse/token';
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import toInt from '../utils/to-int';
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import { createLocal } from '../create/local';
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import getParsingFlags from '../create/parsing-flags';
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// FORMATTING
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addFormatToken('d', 0, 'do', 'day');
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addFormatToken('dd', 0, 0, function (format) {
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return this.localeData().weekdaysMin(this, format);
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});
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addFormatToken('ddd', 0, 0, function (format) {
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return this.localeData().weekdaysShort(this, format);
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});
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addFormatToken('dddd', 0, 0, function (format) {
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return this.localeData().weekdays(this, format);
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});
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addFormatToken('e', 0, 0, 'weekday');
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addFormatToken('E', 0, 0, 'isoWeekday');
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// ALIASES
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addUnitAlias('day', 'd');
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addUnitAlias('weekday', 'e');
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addUnitAlias('isoWeekday', 'E');
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// PARSING
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addRegexToken('d', match1to2);
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addRegexToken('e', match1to2);
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addRegexToken('E', match1to2);
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addRegexToken('dd', matchWord);
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addRegexToken('ddd', matchWord);
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addRegexToken('dddd', matchWord);
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addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config) {
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var weekday = config._locale.weekdaysParse(input);
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// if we didn't get a weekday name, mark the date as invalid
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if (weekday != null) {
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week.d = weekday;
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} else {
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getParsingFlags(config).invalidWeekday = input;
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}
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});
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addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
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week[token] = toInt(input);
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});
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// HELPERS
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function parseWeekday(input, locale) {
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if (typeof input !== 'string') {
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return input;
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}
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if (!isNaN(input)) {
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return parseInt(input, 10);
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}
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input = locale.weekdaysParse(input);
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if (typeof input === 'number') {
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return input;
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}
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return null;
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}
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// LOCALES
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export var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
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export function localeWeekdays (m) {
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return this._weekdays[m.day()];
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}
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export var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
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export function localeWeekdaysShort (m) {
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return this._weekdaysShort[m.day()];
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}
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export var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
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export function localeWeekdaysMin (m) {
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return this._weekdaysMin[m.day()];
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}
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export function localeWeekdaysParse (weekdayName) {
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var i, mom, regex;
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this._weekdaysParse = this._weekdaysParse || [];
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for (i = 0; i < 7; i++) {
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// make the regex if we don't have it already
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if (!this._weekdaysParse[i]) {
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mom = createLocal([2000, 1]).day(i);
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regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
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this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
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}
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// test the regex
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if (this._weekdaysParse[i].test(weekdayName)) {
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return i;
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}
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}
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}
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// MOMENTS
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export function getSetDayOfWeek (input) {
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var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
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if (input != null) {
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input = parseWeekday(input, this.localeData());
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return this.add(input - day, 'd');
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} else {
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return day;
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}
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}
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export function getSetLocaleDayOfWeek (input) {
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var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
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return input == null ? weekday : this.add(input - weekday, 'd');
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}
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export function getSetISODayOfWeek (input) {
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// behaves the same as moment#day except
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// as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
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// as a setter, sunday should belong to the previous week.
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return input == null ? this.day() || 7 : this.day(this.day() % 7 ? input : input - 7);
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}
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