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- import { configFromStringAndFormat } from './from-string-and-format';
- import { createUTCDate } from './date-from-array';
- import { hooks } from '../utils/hooks';
- import { deprecate } from '../utils/deprecate';
- import getParsingFlags from './parsing-flags';
- import { defaultLocaleMonthsShort } from '../units/month';
- import { defaultLocaleWeekdaysShort } from '../units/day-of-week';
- // iso 8601 regex
- // 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)
- var extendedIsoRegex =
- /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
- basicIsoRegex =
- /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
- tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
- isoDates = [
- ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
- ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
- ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
- ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
- ['YYYY-DDD', /\d{4}-\d{3}/],
- ['YYYY-MM', /\d{4}-\d\d/, false],
- ['YYYYYYMMDD', /[+-]\d{10}/],
- ['YYYYMMDD', /\d{8}/],
- ['GGGG[W]WWE', /\d{4}W\d{3}/],
- ['GGGG[W]WW', /\d{4}W\d{2}/, false],
- ['YYYYDDD', /\d{7}/],
- ['YYYYMM', /\d{6}/, false],
- ['YYYY', /\d{4}/, false],
- ],
- // iso time formats and regexes
- isoTimes = [
- ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
- ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
- ['HH:mm:ss', /\d\d:\d\d:\d\d/],
- ['HH:mm', /\d\d:\d\d/],
- ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
- ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
- ['HHmmss', /\d\d\d\d\d\d/],
- ['HHmm', /\d\d\d\d/],
- ['HH', /\d\d/],
- ],
- aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
- // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
- rfc2822 =
- /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
- obsOffsets = {
- UT: 0,
- GMT: 0,
- EDT: -4 * 60,
- EST: -5 * 60,
- CDT: -5 * 60,
- CST: -6 * 60,
- MDT: -6 * 60,
- MST: -7 * 60,
- PDT: -7 * 60,
- PST: -8 * 60,
- };
- // date from iso format
- export function configFromISO(config) {
- var i,
- l,
- string = config._i,
- match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
- allowTime,
- dateFormat,
- timeFormat,
- tzFormat,
- isoDatesLen = isoDates.length,
- isoTimesLen = isoTimes.length;
- if (match) {
- getParsingFlags(config).iso = true;
- for (i = 0, l = isoDatesLen; i < l; i++) {
- if (isoDates[i][1].exec(match[1])) {
- dateFormat = isoDates[i][0];
- allowTime = isoDates[i][2] !== false;
- break;
- }
- }
- if (dateFormat == null) {
- config._isValid = false;
- return;
- }
- if (match[3]) {
- for (i = 0, l = isoTimesLen; i < l; i++) {
- if (isoTimes[i][1].exec(match[3])) {
- // match[2] should be 'T' or space
- timeFormat = (match[2] || ' ') + isoTimes[i][0];
- break;
- }
- }
- if (timeFormat == null) {
- config._isValid = false;
- return;
- }
- }
- if (!allowTime && timeFormat != null) {
- config._isValid = false;
- return;
- }
- if (match[4]) {
- if (tzRegex.exec(match[4])) {
- tzFormat = 'Z';
- } else {
- config._isValid = false;
- return;
- }
- }
- config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
- configFromStringAndFormat(config);
- } else {
- config._isValid = false;
- }
- }
- function extractFromRFC2822Strings(
- yearStr,
- monthStr,
- dayStr,
- hourStr,
- minuteStr,
- secondStr
- ) {
- var result = [
- untruncateYear(yearStr),
- defaultLocaleMonthsShort.indexOf(monthStr),
- parseInt(dayStr, 10),
- parseInt(hourStr, 10),
- parseInt(minuteStr, 10),
- ];
- if (secondStr) {
- result.push(parseInt(secondStr, 10));
- }
- return result;
- }
- function untruncateYear(yearStr) {
- var year = parseInt(yearStr, 10);
- if (year <= 49) {
- return 2000 + year;
- } else if (year <= 999) {
- return 1900 + year;
- }
- return year;
- }
- function preprocessRFC2822(s) {
- // Remove comments and folding whitespace and replace multiple-spaces with a single space
- return s
- .replace(/\([^()]*\)|[\n\t]/g, ' ')
- .replace(/(\s\s+)/g, ' ')
- .replace(/^\s\s*/, '')
- .replace(/\s\s*$/, '');
- }
- function checkWeekday(weekdayStr, parsedInput, config) {
- if (weekdayStr) {
- // TODO: Replace the vanilla JS Date object with an independent day-of-week check.
- var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
- weekdayActual = new Date(
- parsedInput[0],
- parsedInput[1],
- parsedInput[2]
- ).getDay();
- if (weekdayProvided !== weekdayActual) {
- getParsingFlags(config).weekdayMismatch = true;
- config._isValid = false;
- return false;
- }
- }
- return true;
- }
- function calculateOffset(obsOffset, militaryOffset, numOffset) {
- if (obsOffset) {
- return obsOffsets[obsOffset];
- } else if (militaryOffset) {
- // the only allowed military tz is Z
- return 0;
- } else {
- var hm = parseInt(numOffset, 10),
- m = hm % 100,
- h = (hm - m) / 100;
- return h * 60 + m;
- }
- }
- // date and time from ref 2822 format
- export function configFromRFC2822(config) {
- var match = rfc2822.exec(preprocessRFC2822(config._i)),
- parsedArray;
- if (match) {
- parsedArray = extractFromRFC2822Strings(
- match[4],
- match[3],
- match[2],
- match[5],
- match[6],
- match[7]
- );
- if (!checkWeekday(match[1], parsedArray, config)) {
- return;
- }
- config._a = parsedArray;
- config._tzm = calculateOffset(match[8], match[9], match[10]);
- config._d = createUTCDate.apply(null, config._a);
- config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
- getParsingFlags(config).rfc2822 = true;
- } else {
- config._isValid = false;
- }
- }
- // date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
- export function configFromString(config) {
- var matched = aspNetJsonRegex.exec(config._i);
- if (matched !== null) {
- config._d = new Date(+matched[1]);
- return;
- }
- configFromISO(config);
- if (config._isValid === false) {
- delete config._isValid;
- } else {
- return;
- }
- configFromRFC2822(config);
- if (config._isValid === false) {
- delete config._isValid;
- } else {
- return;
- }
- if (config._strict) {
- config._isValid = false;
- } else {
- // Final attempt, use Input Fallback
- hooks.createFromInputFallback(config);
- }
- }
- hooks.createFromInputFallback = deprecate(
- 'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
- 'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
- 'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',
- function (config) {
- config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
- }
- );
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