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