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Diffstat (limited to 'node_modules/moment/src/lib/create/from-string.js')
-rw-r--r-- | node_modules/moment/src/lib/create/from-string.js | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/node_modules/moment/src/lib/create/from-string.js b/node_modules/moment/src/lib/create/from-string.js new file mode 100644 index 0000000..58739b9 --- /dev/null +++ b/node_modules/moment/src/lib/create/from-string.js @@ -0,0 +1,258 @@ +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' : '')); + } +); |