import { matchOffset } from '../parse/regex';
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import { configFromStringAndFormat } from './from-string-and-format';
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import { hooks } from '../utils/hooks';
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import { deprecate } from '../utils/deprecate';
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import getParsingFlags from './parsing-flags';
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// iso 8601 regex
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// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
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var isoRegex = /^\s*(?:[+-]\d{6}|\d{4})-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
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var isoDates = [
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['YYYYYY-MM-DD', /[+-]\d{6}-\d{2}-\d{2}/],
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['YYYY-MM-DD', /\d{4}-\d{2}-\d{2}/],
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['GGGG-[W]WW-E', /\d{4}-W\d{2}-\d/],
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['GGGG-[W]WW', /\d{4}-W\d{2}/],
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['YYYY-DDD', /\d{4}-\d{3}/]
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];
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// iso time formats and regexes
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var isoTimes = [
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['HH:mm:ss.SSSS', /(T| )\d\d:\d\d:\d\d\.\d+/],
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['HH:mm:ss', /(T| )\d\d:\d\d:\d\d/],
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['HH:mm', /(T| )\d\d:\d\d/],
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['HH', /(T| )\d\d/]
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];
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var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;
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// date from iso format
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export function configFromISO(config) {
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var i, l,
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string = config._i,
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match = isoRegex.exec(string);
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if (match) {
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getParsingFlags(config).iso = true;
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for (i = 0, l = isoDates.length; i < l; i++) {
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if (isoDates[i][1].exec(string)) {
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config._f = isoDates[i][0];
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break;
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}
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}
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for (i = 0, l = isoTimes.length; i < l; i++) {
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if (isoTimes[i][1].exec(string)) {
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// match[6] should be 'T' or space
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config._f += (match[6] || ' ') + isoTimes[i][0];
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break;
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}
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}
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if (string.match(matchOffset)) {
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config._f += 'Z';
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}
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configFromStringAndFormat(config);
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} else {
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config._isValid = false;
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}
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}
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// date from iso format or fallback
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export function configFromString(config) {
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var matched = aspNetJsonRegex.exec(config._i);
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if (matched !== null) {
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config._d = new Date(+matched[1]);
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return;
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}
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configFromISO(config);
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if (config._isValid === false) {
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delete config._isValid;
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hooks.createFromInputFallback(config);
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}
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}
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hooks.createFromInputFallback = deprecate(
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'moment construction falls back to js Date. This is ' +
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'discouraged and will be removed in upcoming major ' +
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'release. Please refer to ' +
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'https://github.com/moment/moment/issues/1407 for more info.',
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function (config) {
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config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
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}
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);
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