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node_modules/moment/src/lib/units/week.js 1.66 KB
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  import { addFormatToken } from '../format/format';
  import { addUnitAlias } from './aliases';
  import { addUnitPriority } from './priorities';
  import { addRegexToken, match1to2, match2 } from '../parse/regex';
  import { addWeekParseToken } from '../parse/token';
  import toInt from '../utils/to-int';
  import { createLocal } from '../create/local';
  import { weekOfYear } from './week-calendar-utils';
  
  // FORMATTING
  
  addFormatToken('w', ['ww', 2], 'wo', 'week');
  addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
  
  // ALIASES
  
  addUnitAlias('week', 'w');
  addUnitAlias('isoWeek', 'W');
  
  // PRIORITIES
  
  addUnitPriority('week', 5);
  addUnitPriority('isoWeek', 5);
  
  // 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
  
  // 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');
  }