import parse from '../parse/index' ; import isValid from '../isValid/index' ; import requiredArgs from '../_lib/requiredArgs/index' ; import type { LocaleOptions , WeekStartOptions , FirstWeekContainsDateOptions , } from '../types' ; name category summary description Return the true if given date is string correct against the given format else
 * will return false.
 *
 * > ⚠️ Please note that the `format` tokens differ from Moment.js and other libraries.
 * > See: https://git.io/fxCyr
 *
 * The characters in the format string wrapped between two single quotes characters (') are escaped.
 * Two single quotes in a row, whether inside or outside a quoted sequence, represent a 'real' single quote.
 *
 * Format of the format string is based on Unicode Technical Standard #35:
 * https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
 * with a few additions (see note 5 below the table).
 *
 * Not all tokens are compatible. Combinations that don't make sense or could lead to bugs are prohibited
 * and will throw `RangeError`. For example usage of 24-hour format token with AM/PM token will throw an exception:
 *
 * ```javascript
 * isMatch('23 AM', 'HH a')
 * //=> RangeError: The format string mustn't contain `HH` and `a` at the same time
 * ```
 *
 * See the compatibility table: https://docs.google.com/spreadsheets/d/e/2PACX-1vQOPU3xUhplll6dyoMmVUXHKl_8CRDs6_ueLmex3SoqwhuolkuN3O05l4rqx5h1dKX8eb46Ul-CCSrq/pubhtml?gid=0&single=true
 *
 * Accepted format string patterns:
 * | Unit                            |Prior| Pattern | Result examples                   | Notes |
 * |---------------------------------|-----|---------|-----------------------------------|-------|
 * | Era                             | 140 | G..GGG  | AD, BC                            |       |
 * |                                 |     | GGGG    | Anno Domini, Before Christ        | 2     |
 * |                                 |     | GGGGG   | A, B                              |       |
 * | Calendar year                   | 130 | y       | 44, 1, 1900, 2017, 9999           | 4     |
 * |                                 |     | yo      | 44th, 1st, 1900th, 9999999th      | 4,5   |
 * |                                 |     | yy      | 44, 01, 00, 17                    | 4     |
 * |                                 |     | yyy     | 044, 001, 123, 999                | 4     |
 * |                                 |     | yyyy    | 0044, 0001, 1900, 2017            | 4     |
 * |                                 |     | yyyyy   | ...                               | 2,4   |
 * | Local week-numbering year       | 130 | Y       | 44, 1, 1900, 2017, 9000           | 4     |
 * |                                 |     | Yo      | 44th, 1st, 1900th, 9999999th      | 4,5   |
 * |                                 |     | YY      | 44, 01, 00, 17                    | 4,6   |
 * |                                 |     | YYY     | 044, 001, 123, 999                | 4     |
 * |                                 |     | YYYY    | 0044, 0001, 1900, 2017            | 4,6   |
 * |                                 |     | YYYYY   | ...                               | 2,4   |
 * | ISO week-numbering year         | 130 | R       | -43, 1, 1900, 2017, 9999, -9999   | 4,5   |
 * |                                 |     | RR      | -43, 01, 00, 17                   | 4,5   |
 * |                                 |     | RRR     | -043, 001, 123, 999, -999         | 4,5   |
 * |                                 |     | RRRR    | -0043, 0001, 2017, 9999, -9999    | 4,5   |
 * |                                 |     | RRRRR   | ...                               | 2,4,5 |
 * | Extended year                   | 130 | u       | -43, 1, 1900, 2017, 9999, -999    | 4     |
 * |                                 |     | uu      | -43, 01, 99, -99                  | 4     |
 * |                                 |     | uuu     | -043, 001, 123, 999, -999         | 4     |
 * |                                 |     | uuuu    | -0043, 0001, 2017, 9999, -9999    | 4     |
 * |                                 |     | uuuuu   | ...                               | 2,4   |
 * | Quarter (formatting)            | 120 | Q       | 1, 2, 3, 4                        |       |
 * |                                 |     | Qo      | 1st, 2nd, 3rd, 4th                | 5     |
 * |                                 |     | QQ      | 01, 02, 03, 04                    |       |
 * |                                 |     | QQQ     | Q1, Q2, Q3, Q4                    |       |
 * |                                 |     | QQQQ    | 1st quarter, 2nd quarter, ...     | 2     |
 * |                                 |     | QQQQQ   | 1, 2, 3, 4                        | 4     |
 * | Quarter (stand-alone)           | 120 | q       | 1, 2, 3, 4                        |       |
 * |                                 |     | qo      | 1st, 2nd, 3rd, 4th                | 5     |
 * |                                 |     | qq      | 01, 02, 03, 04                    |       |
 * |                                 |     | qqq     | Q1, Q2, Q3, Q4                    |       |
 * |                                 |     | qqqq    | 1st quarter, 2nd quarter, ...     | 2     |
 * |                                 |     | qqqqq   | 1, 2, 3, 4                        | 3     |
 * | Month (formatting)              | 110 | M       | 1, 2, ..., 12                     |       |
 * |                                 |     | Mo      | 1st, 2nd, ..., 12th               | 5     |
 * |                                 |     | MM      | 01, 02, ..., 12                   |       |
 * |                                 |     | MMM     | Jan, Feb, ..., Dec                |       |
 * |                                 |     | MMMM    | January, February, ..., December  | 2     |
 * |                                 |     | MMMMM   | J, F, ..., D                      |       |
 * | Month (stand-alone)             | 110 | L       | 1, 2, ..., 12                     |       |
 * |                                 |     | Lo      | 1st, 2nd, ..., 12th               | 5     |
 * |                                 |     | LL      | 01, 02, ..., 12                   |       |
 * |                                 |     | LLL     | Jan, Feb, ..., Dec                |       |
 * |                                 |     | LLLL    | January, February, ..., December  | 2     |
 * |                                 |     | LLLLL   | J, F, ..., D                      |       |
 * | Local week of year              | 100 | w       | 1, 2, ..., 53                     |       |
 * |                                 |     | wo      | 1st, 2nd, ..., 53th               | 5     |
 * |                                 |     | ww      | 01, 02, ..., 53                   |       |
 * | ISO week of year                | 100 | I       | 1, 2, ..., 53                     | 5     |
 * |                                 |     | Io      | 1st, 2nd, ..., 53th               | 5     |
 * |                                 |     | II      | 01, 02, ..., 53                   | 5     |
 * | Day of month                    |  90 | d       | 1, 2, ..., 31                     |       |
 * |                                 |     | do      | 1st, 2nd, ..., 31st               | 5     |
 * |                                 |     | dd      | 01, 02, ..., 31                   |       |
 * | Day of year                     |  90 | D       | 1, 2, ..., 365, 366               | 7     |
 * |                                 |     | Do      | 1st, 2nd, ..., 365th, 366th       | 5     |
 * |                                 |     | DD      | 01, 02, ..., 365, 366             | 7     |
 * |                                 |     | DDD     | 001, 002, ..., 365, 366           |       |
 * |                                 |     | DDDD    | ...                               | 2     |
 * | Day of week (formatting)        |  90 | E..EEE  | Mon, Tue, Wed, ..., Su            |       |
 * |                                 |     | EEEE    | Monday, Tuesday, ..., Sunday      | 2     |
 * |                                 |     | EEEEE   | M, T, W, T, F, S, S               |       |
 * |                                 |     | EEEEEE  | Mo, Tu, We, Th, Fr, Sa, Su        |       |
 * | ISO day of week (formatting)    |  90 | i       | 1, 2, 3, ..., 7                   | 5     |
 * |                                 |     | io      | 1st, 2nd, ..., 7th                | 5     |
 * |                                 |     | ii      | 01, 02, ..., 07                   | 5     |
 * |                                 |     | iii     | Mon, Tue, Wed, ..., Su            | 5     |
 * |                                 |     | iiii    | Monday, Tuesday, ..., Sunday      | 2,5   |
 * |                                 |     | iiiii   | M, T, W, T, F, S, S               | 5     |
 * |                                 |     | iiiiii  | Mo, Tu, We, Th, Fr, Sa, Su        | 5     |
 * | Local day of week (formatting)  |  90 | e       | 2, 3, 4, ..., 1                   |       |
 * |                                 |     | eo      | 2nd, 3rd, ..., 1st                | 5     |
 * |                                 |     | ee      | 02, 03, ..., 01                   |       |
 * |                                 |     | eee     | Mon, Tue, Wed, ..., Su            |       |
 * |                                 |     | eeee    | Monday, Tuesday, ..., Sunday      | 2     |
 * |                                 |     | eeeee   | M, T, W, T, F, S, S               |       |
 * |                                 |     | eeeeee  | Mo, Tu, We, Th, Fr, Sa, Su        |       |
 * | Local day of week (stand-alone) |  90 | c       | 2, 3, 4, ..., 1                   |       |
 * |                                 |     | co      | 2nd, 3rd, ..., 1st                | 5     |
 * |                                 |     | cc      | 02, 03, ..., 01                   |       |
 * |                                 |     | ccc     | Mon, Tue, Wed, ..., Su            |       |
 * |                                 |     | cccc    | Monday, Tuesday, ..., Sunday      | 2     |
 * |                                 |     | ccccc   | M, T, W, T, F, S, S               |       |
 * |                                 |     | cccccc  | Mo, Tu, We, Th, Fr, Sa, Su        |       |
 * | AM, PM                          |  80 | a..aaa  | AM, PM                            |       |
 * |                                 |     | aaaa    | a.m., p.m.                        | 2     |
 * |                                 |     | aaaaa   | a, p                              |       |
 * | AM, PM, noon, midnight          |  80 | b..bbb  | AM, PM, noon, midnight            |       |
 * |                                 |     | bbbb    | a.m., p.m., noon, midnight        | 2     |
 * |                                 |     | bbbbb   | a, p, n, mi                       |       |
 * | Flexible day period             |  80 | B..BBB  | at night, in the morning, ...     |       |
 * |                                 |     | BBBB    | at night, in the morning, ...     | 2     |
 * |                                 |     | BBBBB   | at night, in the morning, ...     |       |
 * | Hour [1-12]                     |  70 | h       | 1, 2, ..., 11, 12                 |       |
 * |                                 |     | ho      | 1st, 2nd, ..., 11th, 12th         | 5     |
 * |                                 |     | hh      | 01, 02, ..., 11, 12               |       |
 * | Hour [0-23]                     |  70 | H       | 0, 1, 2, ..., 23                  |       |
 * |                                 |     | Ho      | 0th, 1st, 2nd, ..., 23rd          | 5     |
 * |                                 |     | HH      | 00, 01, 02, ..., 23               |       |
 * | Hour [0-11]                     |  70 | K       | 1, 2, ..., 11, 0                  |       |
 * |                                 |     | Ko      | 1st, 2nd, ..., 11th, 0th          | 5     |
 * |                                 |     | KK      | 01, 02, ..., 11, 00               |       |
 * | Hour [1-24]                     |  70 | k       | 24, 1, 2, ..., 23                 |       |
 * |                                 |     | ko      | 24th, 1st, 2nd, ..., 23rd         | 5     |
 * |                                 |     | kk      | 24, 01, 02, ..., 23               |       |
 * | Minute                          |  60 | m       | 0, 1, ..., 59                     |       |
 * |                                 |     | mo      | 0th, 1st, ..., 59th               | 5     |
 * |                                 |     | mm      | 00, 01, ..., 59                   |       |
 * | Second                          |  50 | s       | 0, 1, ..., 59                     |       |
 * |                                 |     | so      | 0th, 1st, ..., 59th               | 5     |
 * |                                 |     | ss      | 00, 01, ..., 59                   |       |
 * | Seconds timestamp               |  40 | t       | 512969520                         |       |
 * |                                 |     | tt      | ...                               | 2     |
 * | Fraction of second              |  30 | S       | 0, 1, ..., 9                      |       |
 * |                                 |     | SS      | 00, 01, ..., 99                   |       |
 * |                                 |     | SSS     | 000, 001, ..., 999                |       |
 * |                                 |     | SSSS    | ...                               | 2     |
 * | Milliseconds timestamp          |  20 | T       | 512969520900                      |       |
 * |                                 |     | TT      | ...                               | 2     |
 * | Timezone (ISO-8601 w/ Z)        |  10 | X       | -08, +0530, Z                     |       |
 * |                                 |     | XX      | -0800, +0530, Z                   |       |
 * |                                 |     | XXX     | -08:00, +05:30, Z                 |       |
 * |                                 |     | XXXX    | -0800, +0530, Z, +123456          | 2     |
 * |                                 |     | XXXXX   | -08:00, +05:30, Z, +12:34:56      |       |
 * | Timezone (ISO-8601 w/o Z)       |  10 | x       | -08, +0530, +00                   |       |
 * |                                 |     | xx      | -0800, +0530, +0000               |       |
 * |                                 |     | xxx     | -08:00, +05:30, +00:00            | 2     |
 * |                                 |     | xxxx    | -0800, +0530, +0000, +123456      |       |
 * |                                 |     | xxxxx   | -08:00, +05:30, +00:00, +12:34:56 |       |
 * | Long localized date             |  NA | P       | 05/29/1453                        | 5,8   |
 * |                                 |     | PP      | May 29, 1453                      |       |
 * |                                 |     | PPP     | May 29th, 1453                    |       |
 * |                                 |     | PPPP    | Sunday, May 29th, 1453            | 2,5,8 |
 * | Long localized time             |  NA | p       | 12:00 AM                          | 5,8   |
 * |                                 |     | pp      | 12:00:00 AM                       |       |
 * | Combination of date and time    |  NA | Pp      | 05/29/1453, 12:00 AM              |       |
 * |                                 |     | PPpp    | May 29, 1453, 12:00:00 AM         |       |
 * |                                 |     | PPPpp   | May 29th, 1453 at ...             |       |
 * |                                 |     | PPPPpp  | Sunday, May 29th, 1453 at ...     | 2,5,8 |
 * Notes:
 * 1. "Formatting" units (e.g. formatting quarter) in the default en-US locale
 *    are the same as "stand-alone" units, but are different in some languages.
 *    "Formatting" units are declined according to the rules of the language
 *    in the context of a date. "Stand-alone" units are always nominative singular.
 *    In `format` function, they will produce different result:
 *
 *    `format(new Date(2017, 10, 6), 'do LLLL', {locale: cs}) //=> '6. listopad'`
 *
 *    `format(new Date(2017, 10, 6), 'do MMMM', {locale: cs}) //=> '6. listopadu'`
 *
 *    `isMatch` will try to match both formatting and stand-alone units interchangably.
 *
 * 2. Any sequence of the identical letters is a pattern, unless it is escaped by
 *    the single quote characters (see below).
 *    If the sequence is longer than listed in table:
 *    - for numerical units (`yyyyyyyy`) `isMatch` will try to match a number
 *      as wide as the sequence
 *    - for text units (`MMMMMMMM`) `isMatch` will try to match the widest variation of the unit.
 *      These variations are marked with "2" in the last column of the table.
 *
 * 3. `QQQQQ` and `qqqqq` could be not strictly numerical in some locales.
 *    These tokens represent the shortest form of the quarter.
 *
 * 4. The main difference between `y` and `u` patterns are B.C. years:
 *
 *    | Year | `y` | `u` |
 *    |------|-----|-----|
 *    | AC 1 |   1 |   1 |
 *    | BC 1 |   1 |   0 |
 *    | BC 2 |   2 |  -1 |
 *
 *    Also `yy` will try to guess the century of two digit year by proximity with `referenceDate`:
 *
 *    `isMatch('50', 'yy') //=> true`
 *
 *    `isMatch('75', 'yy') //=> true`
 *
 *    while `uu` will use the year as is:
 *
 *    `isMatch('50', 'uu') //=> true`
 *
 *    `isMatch('75', 'uu') //=> true`
 *
 *    The same difference is true for local and ISO week-numbering years (`Y` and `R`),
 *    except local week-numbering years are dependent on `options.weekStartsOn`
 *    and `options.firstWeekContainsDate` (compare [setISOWeekYear] https *    and [setWeekYear] https ).
 *
 * 5. These patterns are not in the Unicode Technical Standard #35:
 *    - `i`: ISO day of week
 *    - `I`: ISO week of year
 *    - `R`: ISO week-numbering year
 *    - `o`: ordinal number modifier
 *    - `P`: long localized date
 *    - `p`: long localized time
 *
 * 6. `YY` and `YYYY` tokens represent week-numbering years but they are often confused with years.
 *    You should enable `options.useAdditionalWeekYearTokens` to use them. See: https://git.io/fxCyr
 *
 * 7. `D` and `DD` tokens represent days of the year but they are ofthen confused with days of the month.
 *    You should enable `options.useAdditionalDayOfYearTokens` to use them. See: https://git.io/fxCyr
 *
 * 8. `P+` tokens do not have a defined priority since they are merely aliases to other tokens based
 *    on the given locale.
 *
 *    using `en-US` locale: `P` => `MM/dd/yyyy`
 *    using `en-US` locale: `p` => `hh:mm a`
 *    using `pt-BR` locale: `P` => `dd/MM/yyyy`
 *    using `pt-BR` locale: `p` => `HH:mm`
 *
 * Values will be checked in the descending order of its unit's priority.
 * Units of an equal priority overwrite each other in the order of appearance.
 *
 * If no values of higher priority are matched (e.g. when matching string 'January 1st' without a year),
 * the values will be taken from today's using `new Date()` date which works as a context of parsing.
 *
 * The result may vary by locale.
 *
 * If `formatString` matches with `dateString` but does not provides tokens, `referenceDate` will be returned.
 *
 *
 *
 *  param { String } dateString param { String } formatString param options param { Locale } options . locale - the locale object. See [Locale] https param { 0 | 1 | 2 | 3 | 4 | 5 | 6 } options . weekStartsOn param { 1 | 2 | 3 | 4 | 5 | 6 | 7 } options . firstWeekContainsDate param { Boolean } options . useAdditionalWeekYearTokens param { Boolean } options . useAdditionalDayOfYearTokens returns { Boolean } throws throws throws throws throws throws throws throws throws example example export default function isMatch ( dateString , formatString , options ? ) { requiredArgs ( 2 , arguments ) ; return isValid ( parse ( dateString , formatString , new Date ( ) , options ) ) ; }