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-rw-r--r--library/moment/src/lib/units/year.js62
1 files changed, 62 insertions, 0 deletions
diff --git a/library/moment/src/lib/units/year.js b/library/moment/src/lib/units/year.js
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+++ b/library/moment/src/lib/units/year.js
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+import { makeGetSet } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import { addUnitAlias } from './aliases';
+import { addRegexToken, match1to2, match1to4, match1to6, match2, match4, match6, matchSigned } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { hooks } from '../utils/hooks';
+import { YEAR } from './constants';
+import toInt from '../utils/to-int';
+
+// FORMATTING
+
+addFormatToken(0, ['YY', 2], 0, function () {
+ return this.year() % 100;
+});
+
+addFormatToken(0, ['YYYY', 4], 0, 'year');
+addFormatToken(0, ['YYYYY', 5], 0, 'year');
+addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
+
+// ALIASES
+
+addUnitAlias('year', 'y');
+
+// PARSING
+
+addRegexToken('Y', matchSigned);
+addRegexToken('YY', match1to2, match2);
+addRegexToken('YYYY', match1to4, match4);
+addRegexToken('YYYYY', match1to6, match6);
+addRegexToken('YYYYYY', match1to6, match6);
+
+addParseToken(['YYYYY', 'YYYYYY'], YEAR);
+addParseToken('YYYY', function (input, array) {
+ array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
+});
+addParseToken('YY', function (input, array) {
+ array[YEAR] = hooks.parseTwoDigitYear(input);
+});
+
+// HELPERS
+
+export function daysInYear(year) {
+ return isLeapYear(year) ? 366 : 365;
+}
+
+function isLeapYear(year) {
+ return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+}
+
+// HOOKS
+
+hooks.parseTwoDigitYear = function (input) {
+ return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
+};
+
+// MOMENTS
+
+export var getSetYear = makeGetSet('FullYear', false);
+
+export function getIsLeapYear () {
+ return isLeapYear(this.year());
+}