summaryrefslogtreecommitdiff
path: root/src/node_modules/validator/es/lib/isISO8601.js
diff options
context:
space:
mode:
authorMinteck <contact@minteck.org>2021-12-21 16:52:28 +0100
committerMinteck <contact@minteck.org>2021-12-21 16:52:28 +0100
commit46e43f4bde4a35785b4997b81e86cd19f046b69b (patch)
treec53c2f826f777f9d6b2d249dab556feb72a6c3a6 /src/node_modules/validator/es/lib/isISO8601.js
downloadlangdetect-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.js45
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