import { makeGetSet } from '../moment/get-set';
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import { addFormatToken } from '../format/format';
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import { addUnitAlias } from './aliases';
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import { addRegexToken, match1to2, match2 } from '../parse/regex';
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import { addParseToken } from '../parse/token';
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import { HOUR } from './constants';
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import toInt from '../utils/to-int';
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import getParsingFlags from '../create/parsing-flags';
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// FORMATTING
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addFormatToken('H', ['HH', 2], 0, 'hour');
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addFormatToken('h', ['hh', 2], 0, function () {
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return this.hours() % 12 || 12;
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});
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function meridiem (token, lowercase) {
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addFormatToken(token, 0, 0, function () {
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return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
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});
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}
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meridiem('a', true);
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meridiem('A', false);
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// ALIASES
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addUnitAlias('hour', 'h');
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// PARSING
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function matchMeridiem (isStrict, locale) {
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return locale._meridiemParse;
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}
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addRegexToken('a', matchMeridiem);
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addRegexToken('A', matchMeridiem);
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addRegexToken('H', match1to2);
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addRegexToken('h', match1to2);
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addRegexToken('HH', match1to2, match2);
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addRegexToken('hh', match1to2, match2);
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addParseToken(['H', 'HH'], HOUR);
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addParseToken(['a', 'A'], function (input, array, config) {
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config._isPm = config._locale.isPM(input);
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config._meridiem = input;
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});
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addParseToken(['h', 'hh'], function (input, array, config) {
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array[HOUR] = toInt(input);
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getParsingFlags(config).bigHour = true;
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});
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// LOCALES
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export function localeIsPM (input) {
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// IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
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// Using charAt should be more compatible.
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return ((input + '').toLowerCase().charAt(0) === 'p');
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}
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export var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
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export function localeMeridiem (hours, minutes, isLower) {
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if (hours > 11) {
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return isLower ? 'pm' : 'PM';
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} else {
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return isLower ? 'am' : 'AM';
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}
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}
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// MOMENTS
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// Setting the hour should keep the time, because the user explicitly
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// specified which hour he wants. So trying to maintain the same hour (in
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// a new timezone) makes sense. Adding/subtracting hours does not follow
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// this rule.
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export var getSetHour = makeGetSet('Hours', true);
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