import { addFormatToken } from ‘../format/format’; import { addUnitAlias } from ‘./aliases’; import { addRegexToken, match1to2, match2 } from ‘../parse/regex’; import { addWeekParseToken } from ‘../parse/token’; import toInt from ‘../utils/to-int’; import { createLocal } from ‘../create/local’;
// FORMATTING
addFormatToken(‘w’, [‘ww’, 2], ‘wo’, ‘week’); addFormatToken(‘W’, [‘WW’, 2], ‘Wo’, ‘isoWeek’);
// ALIASES
addUnitAlias(‘week’, ‘w’); addUnitAlias(‘isoWeek’, ‘W’);
// PARSING
addRegexToken(‘w’, match1to2); addRegexToken(‘ww’, match1to2, match2); addRegexToken(‘W’, match1to2); addRegexToken(‘WW’, match1to2, match2);
addWeekParseToken([‘w’, ‘ww’, ‘W’, ‘WW’], function (input, week, config, token) {
week[token.substr(0, 1)] = toInt(input);
});
// HELPERS
// firstDayOfWeek 0 = sun, 6 = sat // the day of the week that starts the week // (usually sunday or monday) // firstDayOfWeekOfYear 0 = sun, 6 = sat // the first week is the week that contains the first // of this day of the week // (eg. ISO weeks use thursday (4)) export function weekOfYear(mom, firstDayOfWeek, firstDayOfWeekOfYear) {
var end = firstDayOfWeekOfYear - firstDayOfWeek, daysToDayOfWeek = firstDayOfWeekOfYear - mom.day(), adjustedMoment; if (daysToDayOfWeek > end) { daysToDayOfWeek -= 7; } if (daysToDayOfWeek < end - 7) { daysToDayOfWeek += 7; } adjustedMoment = createLocal(mom).add(daysToDayOfWeek, 'd'); return { week: Math.ceil(adjustedMoment.dayOfYear() / 7), year: adjustedMoment.year() };
}
// LOCALES
export function localeWeek (mom) {
return weekOfYear(mom, this._week.dow, this._week.doy).week;
}
export var defaultLocaleWeek = {
dow : 0, // Sunday is the first day of the week. doy : 6 // The week that contains Jan 1st is the first week of the year.
};
export function localeFirstDayOfWeek () {
return this._week.dow;
}
export function localeFirstDayOfYear () {
return this._week.doy;
}
// MOMENTS
export function getSetWeek (input) {
var week = this.localeData().week(this); return input == null ? week : this.add((input - week) * 7, 'd');
}
export function getSetISOWeek (input) {
var week = weekOfYear(this, 1, 4).week; return input == null ? week : this.add((input - week) * 7, 'd');
}