335 lines
9.5 KiB
JavaScript
335 lines
9.5 KiB
JavaScript
(function (main) {
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'use strict';
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/**
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* Parse or format dates
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* @class fecha
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*/
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var fecha = {};
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var token = /d{1,4}|M{1,4}|YY(?:YY)?|S{1,3}|Do|ZZ|([HhMsDm])\1?|[aA]|"[^"]*"|'[^']*'/g;
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var twoDigits = /\d\d?/;
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var threeDigits = /\d{3}/;
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var fourDigits = /\d{4}/;
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var word = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i;
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var literal = /\[([^]*?)\]/gm;
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var noop = function () {
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};
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function shorten(arr, sLen) {
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var newArr = [];
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for (var i = 0, len = arr.length; i < len; i++) {
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newArr.push(arr[i].substr(0, sLen));
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}
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return newArr;
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}
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function monthUpdate(arrName) {
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return function (d, v, i18n) {
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var index = i18n[arrName].indexOf(v.charAt(0).toUpperCase() + v.substr(1).toLowerCase());
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if (~index) {
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d.month = index;
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}
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};
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}
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function pad(val, len) {
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val = String(val);
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len = len || 2;
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while (val.length < len) {
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val = '0' + val;
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}
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return val;
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}
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var dayNames = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
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var monthNames = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
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var monthNamesShort = shorten(monthNames, 3);
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var dayNamesShort = shorten(dayNames, 3);
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fecha.i18n = {
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dayNamesShort: dayNamesShort,
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dayNames: dayNames,
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monthNamesShort: monthNamesShort,
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monthNames: monthNames,
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amPm: ['am', 'pm'],
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DoFn: function DoFn(D) {
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return D + ['th', 'st', 'nd', 'rd'][D % 10 > 3 ? 0 : (D - D % 10 !== 10) * D % 10];
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}
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};
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var formatFlags = {
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D: function(dateObj) {
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return dateObj.getDate();
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},
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DD: function(dateObj) {
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return pad(dateObj.getDate());
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},
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Do: function(dateObj, i18n) {
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return i18n.DoFn(dateObj.getDate());
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},
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d: function(dateObj) {
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return dateObj.getDay();
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},
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dd: function(dateObj) {
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return pad(dateObj.getDay());
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},
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ddd: function(dateObj, i18n) {
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return i18n.dayNamesShort[dateObj.getDay()];
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},
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dddd: function(dateObj, i18n) {
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return i18n.dayNames[dateObj.getDay()];
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},
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M: function(dateObj) {
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return dateObj.getMonth() + 1;
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},
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MM: function(dateObj) {
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return pad(dateObj.getMonth() + 1);
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},
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MMM: function(dateObj, i18n) {
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return i18n.monthNamesShort[dateObj.getMonth()];
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},
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MMMM: function(dateObj, i18n) {
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return i18n.monthNames[dateObj.getMonth()];
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},
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YY: function(dateObj) {
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return String(dateObj.getFullYear()).substr(2);
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},
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YYYY: function(dateObj) {
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return pad(dateObj.getFullYear(), 4);
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},
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h: function(dateObj) {
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return dateObj.getHours() % 12 || 12;
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},
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hh: function(dateObj) {
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return pad(dateObj.getHours() % 12 || 12);
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},
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H: function(dateObj) {
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return dateObj.getHours();
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},
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HH: function(dateObj) {
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return pad(dateObj.getHours());
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},
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m: function(dateObj) {
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return dateObj.getMinutes();
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},
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mm: function(dateObj) {
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return pad(dateObj.getMinutes());
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},
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s: function(dateObj) {
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return dateObj.getSeconds();
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},
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ss: function(dateObj) {
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return pad(dateObj.getSeconds());
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},
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S: function(dateObj) {
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return Math.round(dateObj.getMilliseconds() / 100);
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},
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SS: function(dateObj) {
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return pad(Math.round(dateObj.getMilliseconds() / 10), 2);
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},
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SSS: function(dateObj) {
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return pad(dateObj.getMilliseconds(), 3);
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},
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a: function(dateObj, i18n) {
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return dateObj.getHours() < 12 ? i18n.amPm[0] : i18n.amPm[1];
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},
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A: function(dateObj, i18n) {
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return dateObj.getHours() < 12 ? i18n.amPm[0].toUpperCase() : i18n.amPm[1].toUpperCase();
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},
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ZZ: function(dateObj) {
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var o = dateObj.getTimezoneOffset();
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return (o > 0 ? '-' : '+') + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4);
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}
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};
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var parseFlags = {
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D: [twoDigits, function (d, v) {
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d.day = v;
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}],
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Do: [new RegExp(twoDigits.source + word.source), function (d, v) {
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d.day = parseInt(v, 10);
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}],
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M: [twoDigits, function (d, v) {
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d.month = v - 1;
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}],
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YY: [twoDigits, function (d, v) {
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var da = new Date(), cent = +('' + da.getFullYear()).substr(0, 2);
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d.year = '' + (v > 68 ? cent - 1 : cent) + v;
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}],
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h: [twoDigits, function (d, v) {
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d.hour = v;
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}],
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m: [twoDigits, function (d, v) {
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d.minute = v;
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}],
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s: [twoDigits, function (d, v) {
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d.second = v;
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}],
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YYYY: [fourDigits, function (d, v) {
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d.year = v;
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}],
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S: [/\d/, function (d, v) {
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d.millisecond = v * 100;
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}],
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SS: [/\d{2}/, function (d, v) {
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d.millisecond = v * 10;
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}],
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SSS: [threeDigits, function (d, v) {
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d.millisecond = v;
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}],
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d: [twoDigits, noop],
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ddd: [word, noop],
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MMM: [word, monthUpdate('monthNamesShort')],
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MMMM: [word, monthUpdate('monthNames')],
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a: [word, function (d, v, i18n) {
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var val = v.toLowerCase();
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if (val === i18n.amPm[0]) {
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d.isPm = false;
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} else if (val === i18n.amPm[1]) {
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d.isPm = true;
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}
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}],
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ZZ: [/([\+\-]\d\d:?\d\d|Z)/, function (d, v) {
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if (v === 'Z') v = '+00:00';
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var parts = (v + '').match(/([\+\-]|\d\d)/gi), minutes;
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if (parts) {
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minutes = +(parts[1] * 60) + parseInt(parts[2], 10);
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d.timezoneOffset = parts[0] === '+' ? minutes : -minutes;
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}
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}]
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};
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parseFlags.dd = parseFlags.d;
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parseFlags.dddd = parseFlags.ddd;
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parseFlags.DD = parseFlags.D;
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parseFlags.mm = parseFlags.m;
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parseFlags.hh = parseFlags.H = parseFlags.HH = parseFlags.h;
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parseFlags.MM = parseFlags.M;
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parseFlags.ss = parseFlags.s;
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parseFlags.A = parseFlags.a;
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// Some common format strings
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fecha.masks = {
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default: 'ddd MMM DD YYYY HH:mm:ss',
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shortDate: 'M/D/YY',
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mediumDate: 'MMM D, YYYY',
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longDate: 'MMMM D, YYYY',
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fullDate: 'dddd, MMMM D, YYYY',
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shortTime: 'HH:mm',
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mediumTime: 'HH:mm:ss',
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longTime: 'HH:mm:ss.SSS'
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};
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/***
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* Format a date
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* @method format
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* @param {Date|number} dateObj
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* @param {string} mask Format of the date, i.e. 'mm-dd-yy' or 'shortDate'
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*/
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fecha.format = function (dateObj, mask, i18nSettings) {
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var i18n = i18nSettings || fecha.i18n;
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if (typeof dateObj === 'number') {
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dateObj = new Date(dateObj);
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}
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if (Object.prototype.toString.call(dateObj) !== '[object Date]' || isNaN(dateObj.getTime())) {
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throw new Error('Invalid Date in fecha.format');
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}
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mask = fecha.masks[mask] || mask || fecha.masks['default'];
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var literals = [];
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// Make literals inactive by replacing them with ??
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mask = mask.replace(literal, function($0, $1) {
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literals.push($1);
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return '??';
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});
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// Apply formatting rules
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mask = mask.replace(token, function ($0) {
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return $0 in formatFlags ? formatFlags[$0](dateObj, i18n) : $0.slice(1, $0.length - 1);
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});
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// Inline literal values back into the formatted value
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return mask.replace(/\?\?/g, function() {
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return literals.shift();
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});
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};
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/**
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* Parse a date string into an object, changes - into /
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* @method parse
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* @param {string} dateStr Date string
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* @param {string} format Date parse format
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* @returns {Date|boolean}
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*/
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fecha.parse = function (dateStr, format, i18nSettings) {
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var i18n = i18nSettings || fecha.i18n;
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if (typeof format !== 'string') {
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throw new Error('Invalid format in fecha.parse');
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}
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format = fecha.masks[format] || format;
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// Avoid regular expression denial of service, fail early for really long strings
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// https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
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if (dateStr.length > 1000) {
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return false;
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}
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var isValid = true;
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var dateInfo = {};
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format.replace(token, function ($0) {
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if (parseFlags[$0]) {
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var info = parseFlags[$0];
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var index = dateStr.search(info[0]);
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if (!~index) {
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isValid = false;
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} else {
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dateStr.replace(info[0], function (result) {
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info[1](dateInfo, result, i18n);
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dateStr = dateStr.substr(index + result.length);
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return result;
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});
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}
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}
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return parseFlags[$0] ? '' : $0.slice(1, $0.length - 1);
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});
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if (!isValid) {
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return false;
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}
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var today = new Date();
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if (dateInfo.isPm === true && dateInfo.hour != null && +dateInfo.hour !== 12) {
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dateInfo.hour = +dateInfo.hour + 12;
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} else if (dateInfo.isPm === false && +dateInfo.hour === 12) {
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dateInfo.hour = 0;
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}
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var date;
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if (dateInfo.timezoneOffset != null) {
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dateInfo.minute = +(dateInfo.minute || 0) - +dateInfo.timezoneOffset;
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date = new Date(Date.UTC(dateInfo.year || today.getFullYear(), dateInfo.month || 0, dateInfo.day || 1,
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dateInfo.hour || 0, dateInfo.minute || 0, dateInfo.second || 0, dateInfo.millisecond || 0));
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} else {
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date = new Date(dateInfo.year || today.getFullYear(), dateInfo.month || 0, dateInfo.day || 1,
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dateInfo.hour || 0, dateInfo.minute || 0, dateInfo.second || 0, dateInfo.millisecond || 0);
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}
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return date;
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};
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/* istanbul ignore next */
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if (typeof module !== 'undefined' && module.exports) {
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module.exports = fecha;
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} else if (typeof define === 'function' && define.amd) {
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define(function () {
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return fecha;
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});
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} else {
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main.fecha = fecha;
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}
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})(this);
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