diff options
author | Minteck <contact@minteck.org> | 2021-12-21 16:52:28 +0100 |
---|---|---|
committer | Minteck <contact@minteck.org> | 2021-12-21 16:52:28 +0100 |
commit | 46e43f4bde4a35785b4997b81e86cd19f046b69b (patch) | |
tree | c53c2f826f777f9d6b2d249dab556feb72a6c3a6 /src/node_modules/validator/es/lib/isISO8601.js | |
download | langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.tar.gz langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.tar.bz2 langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.zip |
Commit
Diffstat (limited to 'src/node_modules/validator/es/lib/isISO8601.js')
-rw-r--r-- | src/node_modules/validator/es/lib/isISO8601.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/node_modules/validator/es/lib/isISO8601.js b/src/node_modules/validator/es/lib/isISO8601.js new file mode 100644 index 0000000..42af39d --- /dev/null +++ b/src/node_modules/validator/es/lib/isISO8601.js @@ -0,0 +1,45 @@ +import assertString from './util/assertString'; +/* eslint-disable max-len */ +// from http://goo.gl/0ejHHW + +var iso8601 = /^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-3])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/; +/* eslint-enable max-len */ + +var isValidDate = function isValidDate(str) { + // str must have passed the ISO8601 check + // this check is meant to catch invalid dates + // like 2009-02-31 + // first check for ordinal dates + var ordinalMatch = str.match(/^(\d{4})-?(\d{3})([ T]{1}\.*|$)/); + + if (ordinalMatch) { + var oYear = Number(ordinalMatch[1]); + var oDay = Number(ordinalMatch[2]); // if is leap year + + if (oYear % 4 === 0 && oYear % 100 !== 0 || oYear % 400 === 0) return oDay <= 366; + return oDay <= 365; + } + + var match = str.match(/(\d{4})-?(\d{0,2})-?(\d*)/).map(Number); + var year = match[1]; + var month = match[2]; + var day = match[3]; + var monthString = month ? "0".concat(month).slice(-2) : month; + var dayString = day ? "0".concat(day).slice(-2) : day; // create a date object and compare + + var d = new Date("".concat(year, "-").concat(monthString || '01', "-").concat(dayString || '01')); + + if (month && day) { + return d.getUTCFullYear() === year && d.getUTCMonth() + 1 === month && d.getUTCDate() === day; + } + + return true; +}; + +export default function isISO8601(str, options) { + assertString(str); + var check = iso8601.test(str); + if (!options) return check; + if (check && options.strict) return isValidDate(str); + return check; +}
\ No newline at end of file |