1 files changed, 129 insertions, 0 deletions
diff --git a/library/moment/src/lib/units/month.js b/library/moment/src/lib/units/month.js
new file mode 100644
index 000000000..63d18b47f
--- /dev/null
+++ b/library/moment/src/lib/units/month.js
@@ -0,0 +1,129 @@
+import { get } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import { addUnitAlias } from './aliases';
+import { addRegexToken, match1to2, match2, matchWord } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { hooks } from '../utils/hooks';
+import { MONTH } from './constants';
+import toInt from '../utils/to-int';
+import { createUTC } from '../create/utc';
+import getParsingFlags from '../create/parsing-flags';
+
+export function daysInMonth(year, month) {
+    return new Date(Date.UTC(year, month + 1, 0)).getUTCDate();
+}
+
+// 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);
+});
+
+// ALIASES
+
+addUnitAlias('month', 'M');
+
+// PARSING
+
+addRegexToken('M',    match1to2);
+addRegexToken('MM',   match1to2, match2);
+addRegexToken('MMM',  matchWord);
+addRegexToken('MMMM', matchWord);
+
+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
+
+export var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
+export function localeMonths (m) {
+    return this._months[m.month()];
+}
+
+export var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
+export function localeMonthsShort (m) {
+    return this._monthsShort[m.month()];
+}
+
+export function localeMonthsParse (monthName, format, strict) {
+    var i, mom, regex;
+
+    if (!this._monthsParse) {
+        this._monthsParse = [];
+        this._longMonthsParse = [];
+        this._shortMonthsParse = [];
+    }
+
+    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) {
+    var dayOfMonth;
+
+    // TODO: Move this out of here!
+    if (typeof value === 'string') {
+        value = mom.localeData().monthsParse(value);
+        // TODO: Another silent failure?
+        if (typeof value !== 'number') {
+            return mom;
+        }
+    }
+
+    dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
+    mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
+    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());
+}