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Diffstat (limited to 'node_modules/moment/src/lib/units/month.js')
| -rw-r--r-- | node_modules/moment/src/lib/units/month.js | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/node_modules/moment/src/lib/units/month.js b/node_modules/moment/src/lib/units/month.js new file mode 100644 index 0000000..9a326aa --- /dev/null +++ b/node_modules/moment/src/lib/units/month.js @@ -0,0 +1,340 @@ +import { get } from '../moment/get-set'; +import hasOwnProp from '../utils/has-own-prop'; +import { addFormatToken } from '../format/format'; +import { + addRegexToken, + match1to2, + match2, + matchWord, + regexEscape, + match1to2NoLeadingZero, +} from '../parse/regex'; +import { addParseToken } from '../parse/token'; +import { hooks } from '../utils/hooks'; +import { MONTH } from './constants'; +import toInt from '../utils/to-int'; +import isArray from '../utils/is-array'; +import isNumber from '../utils/is-number'; +import mod from '../utils/mod'; +import indexOf from '../utils/index-of'; +import { createUTC } from '../create/utc'; +import getParsingFlags from '../create/parsing-flags'; +import { isLeapYear } from '../utils/is-leap-year'; + +export function daysInMonth(year, month) { + if (isNaN(year) || isNaN(month)) { + return NaN; + } + var modMonth = mod(month, 12); + year += (month - modMonth) / 12; + return modMonth === 1 + ? isLeapYear(year) + ? 29 + : 28 + : 31 - ((modMonth % 7) % 2); +} + +// FORMATTING + +addFormatToken('M', ['MM', 2], 'Mo', function () { + return this.month() + 1; +}); + +addFormatToken('MMM', 0, 0, function (format) { + return this.localeData().monthsShort(this, format); +}); + +addFormatToken('MMMM', 0, 0, function (format) { + return this.localeData().months(this, format); +}); + +// PARSING + +addRegexToken('M', match1to2, match1to2NoLeadingZero); +addRegexToken('MM', match1to2, match2); +addRegexToken('MMM', function (isStrict, locale) { + return locale.monthsShortRegex(isStrict); +}); +addRegexToken('MMMM', function (isStrict, locale) { + return locale.monthsRegex(isStrict); +}); + +addParseToken(['M', 'MM'], function (input, array) { + array[MONTH] = toInt(input) - 1; +}); + +addParseToken(['MMM', 'MMMM'], function (input, array, config, token) { + var month = config._locale.monthsParse(input, token, config._strict); + // if we didn't find a month name, mark the date as invalid. + if (month != null) { + array[MONTH] = month; + } else { + getParsingFlags(config).invalidMonth = input; + } +}); + +// LOCALES + +var defaultLocaleMonths = + 'January_February_March_April_May_June_July_August_September_October_November_December'.split( + '_' + ), + defaultLocaleMonthsShort = + 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'), + MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/, + defaultMonthsShortRegex = matchWord, + defaultMonthsRegex = matchWord; + +export { defaultLocaleMonths, defaultLocaleMonthsShort }; + +export function localeMonths(m, format) { + if (!m) { + return isArray(this._months) + ? this._months + : this._months['standalone']; + } + return isArray(this._months) + ? this._months[m.month()] + : this._months[ + (this._months.isFormat || MONTHS_IN_FORMAT).test(format) + ? 'format' + : 'standalone' + ][m.month()]; +} + +export function localeMonthsShort(m, format) { + if (!m) { + return isArray(this._monthsShort) + ? this._monthsShort + : this._monthsShort['standalone']; + } + return isArray(this._monthsShort) + ? this._monthsShort[m.month()] + : this._monthsShort[ + MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone' + ][m.month()]; +} + +function handleStrictParse(monthName, format, strict) { + var i, + ii, + mom, + llc = monthName.toLocaleLowerCase(); + if (!this._monthsParse) { + // this is not used + this._monthsParse = []; + this._longMonthsParse = []; + this._shortMonthsParse = []; + for (i = 0; i < 12; ++i) { + mom = createUTC([2000, i]); + this._shortMonthsParse[i] = this.monthsShort( + mom, + '' + ).toLocaleLowerCase(); + this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase(); + } + } + + if (strict) { + if (format === 'MMM') { + ii = indexOf.call(this._shortMonthsParse, llc); + return ii !== -1 ? ii : null; + } else { + ii = indexOf.call(this._longMonthsParse, llc); + return ii !== -1 ? ii : null; + } + } else { + if (format === 'MMM') { + ii = indexOf.call(this._shortMonthsParse, llc); + if (ii !== -1) { + return ii; + } + ii = indexOf.call(this._longMonthsParse, llc); + return ii !== -1 ? ii : null; + } else { + ii = indexOf.call(this._longMonthsParse, llc); + if (ii !== -1) { + return ii; + } + ii = indexOf.call(this._shortMonthsParse, llc); + return ii !== -1 ? ii : null; + } + } +} + +export function localeMonthsParse(monthName, format, strict) { + var i, mom, regex; + + if (this._monthsParseExact) { + return handleStrictParse.call(this, monthName, format, strict); + } + + if (!this._monthsParse) { + this._monthsParse = []; + this._longMonthsParse = []; + this._shortMonthsParse = []; + } + + // TODO: add sorting + // Sorting makes sure if one month (or abbr) is a prefix of another + // see sorting in computeMonthsParse + for (i = 0; i < 12; i++) { + // make the regex if we don't have it already + mom = createUTC([2000, i]); + if (strict && !this._longMonthsParse[i]) { + this._longMonthsParse[i] = new RegExp( + '^' + this.months(mom, '').replace('.', '') + '$', + 'i' + ); + this._shortMonthsParse[i] = new RegExp( + '^' + this.monthsShort(mom, '').replace('.', '') + '$', + 'i' + ); + } + if (!strict && !this._monthsParse[i]) { + regex = + '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, ''); + this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i'); + } + // test the regex + if ( + strict && + format === 'MMMM' && + this._longMonthsParse[i].test(monthName) + ) { + return i; + } else if ( + strict && + format === 'MMM' && + this._shortMonthsParse[i].test(monthName) + ) { + return i; + } else if (!strict && this._monthsParse[i].test(monthName)) { + return i; + } + } +} + +// MOMENTS + +export function setMonth(mom, value) { + if (!mom.isValid()) { + // No op + return mom; + } + + if (typeof value === 'string') { + if (/^\d+$/.test(value)) { + value = toInt(value); + } else { + value = mom.localeData().monthsParse(value); + // TODO: Another silent failure? + if (!isNumber(value)) { + return mom; + } + } + } + + var month = value, + date = mom.date(); + + date = date < 29 ? date : Math.min(date, daysInMonth(mom.year(), month)); + void (mom._isUTC + ? mom._d.setUTCMonth(month, date) + : mom._d.setMonth(month, date)); + return mom; +} + +export function getSetMonth(value) { + if (value != null) { + setMonth(this, value); + hooks.updateOffset(this, true); + return this; + } else { + return get(this, 'Month'); + } +} + +export function getDaysInMonth() { + return daysInMonth(this.year(), this.month()); +} + +export function monthsShortRegex(isStrict) { + if (this._monthsParseExact) { + if (!hasOwnProp(this, '_monthsRegex')) { + computeMonthsParse.call(this); + } + if (isStrict) { + return this._monthsShortStrictRegex; + } else { + return this._monthsShortRegex; + } + } else { + if (!hasOwnProp(this, '_monthsShortRegex')) { + this._monthsShortRegex = defaultMonthsShortRegex; + } + return this._monthsShortStrictRegex && isStrict + ? this._monthsShortStrictRegex + : this._monthsShortRegex; + } +} + +export function monthsRegex(isStrict) { + if (this._monthsParseExact) { + if (!hasOwnProp(this, '_monthsRegex')) { + computeMonthsParse.call(this); + } + if (isStrict) { + return this._monthsStrictRegex; + } else { + return this._monthsRegex; + } + } else { + if (!hasOwnProp(this, '_monthsRegex')) { + this._monthsRegex = defaultMonthsRegex; + } + return this._monthsStrictRegex && isStrict + ? this._monthsStrictRegex + : this._monthsRegex; + } +} + +function computeMonthsParse() { + function cmpLenRev(a, b) { + return b.length - a.length; + } + + var shortPieces = [], + longPieces = [], + mixedPieces = [], + i, + mom, + shortP, + longP; + for (i = 0; i < 12; i++) { + // make the regex if we don't have it already + mom = createUTC([2000, i]); + shortP = regexEscape(this.monthsShort(mom, '')); + longP = regexEscape(this.months(mom, '')); + shortPieces.push(shortP); + longPieces.push(longP); + mixedPieces.push(longP); + mixedPieces.push(shortP); + } + // Sorting makes sure if one month (or abbr) is a prefix of another it + // will match the longer piece. + shortPieces.sort(cmpLenRev); + longPieces.sort(cmpLenRev); + mixedPieces.sort(cmpLenRev); + + this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i'); + this._monthsShortRegex = this._monthsRegex; + this._monthsStrictRegex = new RegExp( + '^(' + longPieces.join('|') + ')', + 'i' + ); + this._monthsShortStrictRegex = new RegExp( + '^(' + shortPieces.join('|') + ')', + 'i' + ); +} |