/** * @class Date * * The date parsing and formatting syntax contains a subset of * PHP's date() function, and the formats that are * supported will provide results equivalent to their PHP versions. * * The following is a list of all currently supported formats: *Format Description Example returned values ------ ----------------------------------------------------------------------- ----------------------- d Day of the month, 2 digits with leading zeros 01 to 31 D A short textual representation of the day of the week Mon to Sun j Day of the month without leading zeros 1 to 31 l A full textual representation of the day of the week Sunday to Saturday N ISO-8601 numeric representation of the day of the week 1 (for Monday) through 7 (for Sunday) S English ordinal suffix for the day of the month, 2 characters st, nd, rd or th. Works well with j w Numeric representation of the day of the week 0 (for Sunday) to 6 (for Saturday) z The day of the year (starting from 0) 0 to 364 (365 in leap years) W ISO-8601 week number of year, weeks starting on Monday 01 to 53 F A full textual representation of a month, such as January or March January to December m Numeric representation of a month, with leading zeros 01 to 12 M A short textual representation of a month Jan to Dec n Numeric representation of a month, without leading zeros 1 to 12 t Number of days in the given month 28 to 31 L Whether it's a leap year 1 if it is a leap year, 0 otherwise. o ISO-8601 year number (identical to (Y), but if the ISO week number (W) Examples: 1998 or 2004 belongs to the previous or next year, that year is used instead) Y A full numeric representation of a year, 4 digits Examples: 1999 or 2003 y A two digit representation of a year Examples: 99 or 03 a Lowercase Ante meridiem and Post meridiem am or pm A Uppercase Ante meridiem and Post meridiem AM or PM g 12-hour format of an hour without leading zeros 1 to 12 G 24-hour format of an hour without leading zeros 0 to 23 h 12-hour format of an hour with leading zeros 01 to 12 H 24-hour format of an hour with leading zeros 00 to 23 i Minutes, with leading zeros 00 to 59 s Seconds, with leading zeros 00 to 59 u Decimal fraction of a second Examples: (minimum 1 digit, arbitrary number of digits allowed) 001 (i.e. 0.001s) or 100 (i.e. 0.100s) or 999 (i.e. 0.999s) or 999876543210 (i.e. 0.999876543210s) O Difference to Greenwich time (GMT) in hours and minutes Example: +1030 P Difference to Greenwich time (GMT) with colon between hours and minutes Example: -08:00 T Timezone abbreviation of the machine running the code Examples: EST, MDT, PDT ... Z Timezone offset in seconds (negative if west of UTC, positive if east) -43200 to 50400 c ISO 8601 date Notes: Examples: 1) If unspecified, the month / day defaults to the current month / day, 1991 or the time defaults to midnight, while the timezone defaults to the 1992-10 or browser's timezone. If a time is specified, it must include both hours 1993-09-20 or and minutes. The "T" delimiter, seconds, milliseconds and timezone 1994-08-19T16:20+01:00 or are optional. 1995-07-18T17:21:28-02:00 or 2) The decimal fraction of a second, if specified, must contain at 1996-06-17T18:22:29.98765+03:00 or least 1 digit (there is no limit to the maximum number 1997-05-16T19:23:30,12345-0400 or of digits allowed), and may be delimited by either a '.' or a ',' 1998-04-15T20:24:31.2468Z or Refer to the examples on the right for the various levels of 1999-03-14T20:24:32Z or date-time granularity which are supported, or see 2000-02-13T21:25:33 http://www.w3.org/TR/NOTE-datetime for more info. 2001-01-12 22:26:34 U Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT) 1193432466 or -2138434463 M$ Microsoft AJAX serialized dates \/Date(1238606590509)\/ (i.e. UTC milliseconds since epoch) or \/Date(1238606590509+0800)\/* * Example usage (note that you must escape format specifiers with '\\' to render them as character literals): ** * Here are some standard date/time patterns that you might find helpful. They * are not part of the source of Date.js, but to use them you can simply copy this * block of code into any script that is included after Date.js and they will also become * globally available on the Date object. Feel free to add or remove patterns as needed in your code. *// Sample date: // 'Wed Jan 10 2007 15:05:01 GMT-0600 (Central Standard Time)' var dt = new Date('1/10/2007 03:05:01 PM GMT-0600'); document.write(dt.format('Y-m-d')); // 2007-01-10 document.write(dt.format('F j, Y, g:i a')); // January 10, 2007, 3:05 pm document.write(dt.format('l, \\t\\he jS \\of F Y h:i:s A')); // Wednesday, the 10th of January 2007 03:05:01 PM* * Example usage: *Date.patterns = { ISO8601Long:"Y-m-d H:i:s", ISO8601Short:"Y-m-d", ShortDate: "n/j/Y", LongDate: "l, F d, Y", FullDateTime: "l, F d, Y g:i:s A", MonthDay: "F d", ShortTime: "g:i A", LongTime: "g:i:s A", SortableDateTime: "Y-m-d\\TH:i:s", UniversalSortableDateTime: "Y-m-d H:i:sO", YearMonth: "F, Y" };*var dt = new Date(); document.write(dt.format(Date.patterns.ShortDate));Developer-written, custom formats may be used by supplying both a formatting and a parsing function * which perform to specialized requirements. The functions are stored in {@link #parseFunctions} and {@link #formatFunctions}.
*/ /* * Most of the date-formatting functions below are the excellent work of Baron Schwartz. * (see http://www.xaprb.com/blog/2005/12/12/javascript-closures-for-runtime-efficiency/) * They generate precompiled functions from format patterns instead of parsing and * processing each pattern every time a date is formatted. These functions are available * on every Date object. */ (function() { /** * Global flag which determines if strict date parsing should be used. * Strict date parsing will not roll-over invalid dates, which is the * default behaviour of javascript Date objects. * (see {@link #parseDate} for more information) * Defaults to false. * @static * @type Boolean */ Date.useStrict = false; // create private copy of Ext's String.format() method // - to remove unnecessary dependency // - to resolve namespace conflict with M$-Ajax's implementation function xf(format) { var args = Array.prototype.slice.call(arguments, 1); return format.replace(/\{(\d+)\}/g, function(m, i) { return args[i]; }); } // private Date.formatCodeToRegex = function(character, currentGroup) { // Note: currentGroup - position in regex result array (see notes for Date.parseCodes below) var p = Date.parseCodes[character]; if (p) { p = typeof p == 'function'? p() : p; Date.parseCodes[character] = p; // reassign function result to prevent repeated execution } return p? Ext.applyIf({ c: p.c? xf(p.c, currentGroup || "{0}") : p.c }, p) : { g:0, c:null, s:Ext.escapeRe(character) // treat unrecognised characters as literals } } // private shorthand for Date.formatCodeToRegex since we'll be using it fairly often var $f = Date.formatCodeToRegex; Ext.apply(Date, { /** *An object hash in which each property is a date parsing function. The property name is the * format string which that function parses.
*This object is automatically populated with date parsing functions as * date formats are requested for Ext standard formatting strings.
*Custom parsing functions may be inserted into this object, keyed by a name which from then on * may be used as a format string to {@link #parseDate}.
*
Example:
*Date.parseFunctions['x-date-format'] = myDateParser;A parsing function should return a Date object, and is passed the following parameters:
**
- *
date: StringThe date string to parse.- *
strict: BooleanTrue to validate date strings while parsing * (i.e. prevent javascript Date "rollover") (The default must be false). * Invalid date strings should return null when parsed.To enable Dates to also be formatted according to that format, a corresponding * formatting function must be placed into the {@link #formatFunctions} property. * @property parseFunctions * @static * @type Object */ parseFunctions: { "M$": function(input, strict) { // note: the timezone offset is ignored since the M$ Ajax server sends // a UTC milliseconds-since-Unix-epoch value (negative values are allowed) var re = new RegExp('\\/Date\\(([-+])?(\\d+)(?:[+-]\\d{4})?\\)\\/'); var r = (input || '').match(re); return r? new Date(((r[1] || '') + r[2]) * 1) : null; } }, parseRegexes: [],
/** *An object hash in which each property is a date formatting function. The property name is the * format string which corresponds to the produced formatted date string.
*This object is automatically populated with date formatting functions as * date formats are requested for Ext standard formatting strings.
*Custom formatting functions may be inserted into this object, keyed by a name which from then on * may be used as a format string to {@link #format}. Example:
*Date.formatFunctions['x-date-format'] = myDateFormatter;A formatting function should return a string repesentation of the passed Date object:
**
- *
date: DateThe Date to format.To enable date strings to also be parsed according to that format, a corresponding * parsing function must be placed into the {@link #parseFunctions} property. * @property formatFunctions * @static * @type Object */ formatFunctions: { "M$": function() { // UTC milliseconds since Unix epoch (M$-AJAX serialized date format (MRSF)) return '\\/Date(' + this.getTime() + ')\\/'; } }, y2kYear : 50,
/** * Date interval constant * @static * @type String */ MILLI : "ms", /** * Date interval constant * @static * @type String */ SECOND : "s", /** * Date interval constant * @static * @type String */ MINUTE : "mi", /** Date interval constant * @static * @type String */ HOUR : "h", /** * Date interval constant * @static * @type String */ DAY : "d", /** * Date interval constant * @static * @type String */ MONTH : "mo", /** * Date interval constant * @static * @type String */ YEAR : "y", /** *An object hash containing default date values used during date parsing.
*The following properties are available:
**
- *
y: NumberThe default year value. (defaults to undefined)- *
m: NumberThe default 1-based month value. (defaults to undefined)- *
d: NumberThe default day value. (defaults to undefined)- *
h: NumberThe default hour value. (defaults to undefined)- *
i: NumberThe default minute value. (defaults to undefined)- *
s: NumberThe default second value. (defaults to undefined)- *
ms: NumberThe default millisecond value. (defaults to undefined)Override these properties to customize the default date values used by the {@link #parseDate} method.
*Note: In countries which experience Daylight Saving Time (i.e. DST), the h, i, s * and ms properties may coincide with the exact time in which DST takes effect. * It is the responsiblity of the developer to account for this.
* Example Usage: ** @property defaults * @static * @type Object */ defaults: {}, /** * An array of textual day names. * Override these values for international dates. * Example: *// set default day value to the first day of the month Date.defaults.d = 1; // parse a February date string containing only year and month values. // setting the default day value to 1 prevents weird date rollover issues // when attempting to parse the following date string on, for example, March 31st 2009. Date.parseDate('2009-02', 'Y-m'); // returns a Date object representing February 1st 2009* @type Array * @static */ dayNames : [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], /** * An array of textual month names. * Override these values for international dates. * Example: *Date.dayNames = [ 'SundayInYourLang', 'MondayInYourLang', ... ];* @type Array * @static */ monthNames : [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], /** * An object hash of zero-based javascript month numbers (with short month names as keys. note: keys are case-sensitive). * Override these values for international dates. * Example: *Date.monthNames = [ 'JanInYourLang', 'FebInYourLang', ... ];* @type Object * @static */ monthNumbers : { Jan:0, Feb:1, Mar:2, Apr:3, May:4, Jun:5, Jul:6, Aug:7, Sep:8, Oct:9, Nov:10, Dec:11 }, /** * Get the short month name for the given month number. * Override this function for international dates. * @param {Number} month A zero-based javascript month number. * @return {String} The short month name. * @static */ getShortMonthName : function(month) { return Date.monthNames[month].substring(0, 3); }, /** * Get the short day name for the given day number. * Override this function for international dates. * @param {Number} day A zero-based javascript day number. * @return {String} The short day name. * @static */ getShortDayName : function(day) { return Date.dayNames[day].substring(0, 3); }, /** * Get the zero-based javascript month number for the given short/full month name. * Override this function for international dates. * @param {String} name The short/full month name. * @return {Number} The zero-based javascript month number. * @static */ getMonthNumber : function(name) { // handle camel casing for english month names (since the keys for the Date.monthNumbers hash are case sensitive) return Date.monthNumbers[name.substring(0, 1).toUpperCase() + name.substring(1, 3).toLowerCase()]; }, /** * The base format-code to formatting-function hashmap used by the {@link #format} method. * Formatting functions are strings (or functions which return strings) which * will return the appropriate value when evaluated in the context of the Date object * from which the {@link #format} method is called. * Add to / override these mappings for custom date formatting. * Note: Date.format() treats characters as literals if an appropriate mapping cannot be found. * Example: *Date.monthNumbers = { 'ShortJanNameInYourLang':0, 'ShortFebNameInYourLang':1, ... };* @type Object * @static */ formatCodes : { d: "String.leftPad(this.getDate(), 2, '0')", D: "Date.getShortDayName(this.getDay())", // get localised short day name j: "this.getDate()", l: "Date.dayNames[this.getDay()]", N: "(this.getDay() ? this.getDay() : 7)", S: "this.getSuffix()", w: "this.getDay()", z: "this.getDayOfYear()", W: "String.leftPad(this.getWeekOfYear(), 2, '0')", F: "Date.monthNames[this.getMonth()]", m: "String.leftPad(this.getMonth() + 1, 2, '0')", M: "Date.getShortMonthName(this.getMonth())", // get localised short month name n: "(this.getMonth() + 1)", t: "this.getDaysInMonth()", L: "(this.isLeapYear() ? 1 : 0)", o: "(this.getFullYear() + (this.getWeekOfYear() == 1 && this.getMonth() > 0 ? +1 : (this.getWeekOfYear() >= 52 && this.getMonth() < 11 ? -1 : 0)))", Y: "this.getFullYear()", y: "('' + this.getFullYear()).substring(2, 4)", a: "(this.getHours() < 12 ? 'am' : 'pm')", A: "(this.getHours() < 12 ? 'AM' : 'PM')", g: "((this.getHours() % 12) ? this.getHours() % 12 : 12)", G: "this.getHours()", h: "String.leftPad((this.getHours() % 12) ? this.getHours() % 12 : 12, 2, '0')", H: "String.leftPad(this.getHours(), 2, '0')", i: "String.leftPad(this.getMinutes(), 2, '0')", s: "String.leftPad(this.getSeconds(), 2, '0')", u: "String.leftPad(this.getMilliseconds(), 3, '0')", O: "this.getGMTOffset()", P: "this.getGMTOffset(true)", T: "this.getTimezone()", Z: "(this.getTimezoneOffset() * -60)", c: function() { // ISO-8601 -- GMT format for (var c = "Y-m-dTH:i:sP", code = [], i = 0, l = c.length; i < l; ++i) { var e = c.charAt(i); code.push(e == "T" ? "'T'" : Date.getFormatCode(e)); // treat T as a character literal } return code.join(" + "); }, /* c: function() { // ISO-8601 -- UTC format return [ "this.getUTCFullYear()", "'-'", "String.leftPad(this.getUTCMonth() + 1, 2, '0')", "'-'", "String.leftPad(this.getUTCDate(), 2, '0')", "'T'", "String.leftPad(this.getUTCHours(), 2, '0')", "':'", "String.leftPad(this.getUTCMinutes(), 2, '0')", "':'", "String.leftPad(this.getUTCSeconds(), 2, '0')", "'Z'" ].join(" + "); }, */ U: "Math.round(this.getTime() / 1000)" }, /** * Checks if the passed Date parameters will cause a javascript Date "rollover". * @param {Number} year 4-digit year * @param {Number} month 1-based month-of-year * @param {Number} day Day of month * @param {Number} hour (optional) Hour * @param {Number} minute (optional) Minute * @param {Number} second (optional) Second * @param {Number} millisecond (optional) Millisecond * @return {Boolean} true if the passed parameters do not cause a Date "rollover", false otherwise. * @static */ isValid : function(y, m, d, h, i, s, ms) { // setup defaults h = h || 0; i = i || 0; s = s || 0; ms = ms || 0; var dt = new Date(y, m - 1, d, h, i, s, ms); return y == dt.getFullYear() && m == dt.getMonth() + 1 && d == dt.getDate() && h == dt.getHours() && i == dt.getMinutes() && s == dt.getSeconds() && ms == dt.getMilliseconds(); }, /** * Parses the passed string using the specified date format. * Note that this function expects normal calendar dates, meaning that months are 1-based (i.e. 1 = January). * The {@link #defaults} hash will be used for any date value (i.e. year, month, day, hour, minute, second or millisecond) * which cannot be found in the passed string. If a corresponding default date value has not been specified in the {@link #defaults} hash, * the current date's year, month, day or DST-adjusted zero-hour time value will be used instead. * Keep in mind that the input date string must precisely match the specified format string * in order for the parse operation to be successful (failed parse operations return a null value). *Date.formatCodes.x = "String.leftPad(this.getDate(), 2, '0')"; (new Date()).format("X"); // returns the current day of the monthExample:
* @param {String} input The raw date string. * @param {String} format The expected date string format. * @param {Boolean} strict (optional) True to validate date strings while parsing (i.e. prevents javascript Date "rollover") (defaults to false). Invalid date strings will return null when parsed. * @return {Date} The parsed Date. * @static */ parseDate : function(input, format, strict) { var p = Date.parseFunctions; if (p[format] == null) { Date.createParser(format); } return p[format](input, Ext.isDefined(strict) ? strict : Date.useStrict); }, // private getFormatCode : function(character) { var f = Date.formatCodes[character]; if (f) { f = typeof f == 'function'? f() : f; Date.formatCodes[character] = f; // reassign function result to prevent repeated execution } // note: unknown characters are treated as literals return f || ("'" + String.escape(character) + "'"); }, // private createFormat : function(format) { var code = [], special = false, ch = ''; for (var i = 0; i < format.length; ++i) { ch = format.charAt(i); if (!special && ch == "\\") { special = true; } else if (special) { special = false; code.push("'" + String.escape(ch) + "'"); } else { code.push(Date.getFormatCode(ch)) } } Date.formatFunctions[format] = new Function("return " + code.join('+')); }, // private createParser : function() { var code = [ "var dt, y, m, d, h, i, s, ms, o, z, zz, u, v,", "def = Date.defaults,", "results = String(input).match(Date.parseRegexes[{0}]);", // either null, or an array of matched strings "if(results){", "{1}", "if(u != null){", // i.e. unix time is defined "v = new Date(u * 1000);", // give top priority to UNIX time "}else{", // create Date object representing midnight of the current day; // this will provide us with our date defaults // (note: clearTime() handles Daylight Saving Time automatically) "dt = (new Date()).clearTime();", // date calculations (note: these calculations create a dependency on Ext.num()) "y = y >= 0? y : Ext.num(def.y, dt.getFullYear());", "m = m >= 0? m : Ext.num(def.m - 1, dt.getMonth());", "d = d >= 0? d : Ext.num(def.d, dt.getDate());", // time calculations (note: these calculations create a dependency on Ext.num()) "h = h || Ext.num(def.h, dt.getHours());", "i = i || Ext.num(def.i, dt.getMinutes());", "s = s || Ext.num(def.s, dt.getSeconds());", "ms = ms || Ext.num(def.ms, dt.getMilliseconds());", "if(z >= 0 && y >= 0){", // both the year and zero-based day of year are defined and >= 0. // these 2 values alone provide sufficient info to create a full date object // create Date object representing January 1st for the given year "v = new Date(y, 0, 1, h, i, s, ms);", // then add day of year, checking for Date "rollover" if necessary "v = !strict? v : (strict === true && (z <= 364 || (v.isLeapYear() && z <= 365))? v.add(Date.DAY, z) : null);", "}else if(strict === true && !Date.isValid(y, m + 1, d, h, i, s, ms)){", // check for Date "rollover" "v = null;", // invalid date, so return null "}else{", // plain old Date object "v = new Date(y, m, d, h, i, s, ms);", "}", "}", "}", "if(v){", // favour UTC offset over GMT offset "if(zz != null){", // reset to UTC, then add offset "v = v.add(Date.SECOND, -v.getTimezoneOffset() * 60 - zz);", "}else if(o){", // reset to GMT, then add offset "v = v.add(Date.MINUTE, -v.getTimezoneOffset() + (sn == '+'? -1 : 1) * (hr * 60 + mn));", "}", "}", "return v;" ].join('\n'); return function(format) { var regexNum = Date.parseRegexes.length, currentGroup = 1, calc = [], regex = [], special = false, ch = ""; for (var i = 0; i < format.length; ++i) { ch = format.charAt(i); if (!special && ch == "\\") { special = true; } else if (special) { special = false; regex.push(String.escape(ch)); } else { var obj = $f(ch, currentGroup); currentGroup += obj.g; regex.push(obj.s); if (obj.g && obj.c) { calc.push(obj.c); } } } Date.parseRegexes[regexNum] = new RegExp("^" + regex.join('') + "$", "i"); Date.parseFunctions[format] = new Function("input", "strict", xf(code, regexNum, calc.join(''))); } }(), // private parseCodes : { /* * Notes: * g = {Number} calculation group (0 or 1. only group 1 contributes to date calculations.) * c = {String} calculation method (required for group 1. null for group 0. {0} = currentGroup - position in regex result array) * s = {String} regex pattern. all matches are stored in results[], and are accessible by the calculation mapped to 'c' */ d: { g:1, c:"d = parseInt(results[{0}], 10);\n", s:"(\\d{2})" // day of month with leading zeroes (01 - 31) }, j: { g:1, c:"d = parseInt(results[{0}], 10);\n", s:"(\\d{1,2})" // day of month without leading zeroes (1 - 31) }, D: function() { for (var a = [], i = 0; i < 7; a.push(Date.getShortDayName(i)), ++i); // get localised short day names return { g:0, c:null, s:"(?:" + a.join("|") +")" } }, l: function() { return { g:0, c:null, s:"(?:" + Date.dayNames.join("|") + ")" } }, N: { g:0, c:null, s:"[1-7]" // ISO-8601 day number (1 (monday) - 7 (sunday)) }, S: { g:0, c:null, s:"(?:st|nd|rd|th)" }, w: { g:0, c:null, s:"[0-6]" // javascript day number (0 (sunday) - 6 (saturday)) }, z: { g:1, c:"z = parseInt(results[{0}], 10);\n", s:"(\\d{1,3})" // day of the year (0 - 364 (365 in leap years)) }, W: { g:0, c:null, s:"(?:\\d{2})" // ISO-8601 week number (with leading zero) }, F: function() { return { g:1, c:"m = parseInt(Date.getMonthNumber(results[{0}]), 10);\n", // get localised month number s:"(" + Date.monthNames.join("|") + ")" } }, M: function() { for (var a = [], i = 0; i < 12; a.push(Date.getShortMonthName(i)), ++i); // get localised short month names return Ext.applyIf({ s:"(" + a.join("|") + ")" }, $f("F")); }, m: { g:1, c:"m = parseInt(results[{0}], 10) - 1;\n", s:"(\\d{2})" // month number with leading zeros (01 - 12) }, n: { g:1, c:"m = parseInt(results[{0}], 10) - 1;\n", s:"(\\d{1,2})" // month number without leading zeros (1 - 12) }, t: { g:0, c:null, s:"(?:\\d{2})" // no. of days in the month (28 - 31) }, L: { g:0, c:null, s:"(?:1|0)" }, o: function() { return $f("Y"); }, Y: { g:1, c:"y = parseInt(results[{0}], 10);\n", s:"(\\d{4})" // 4-digit year }, y: { g:1, c:"var ty = parseInt(results[{0}], 10);\n" + "y = ty > Date.y2kYear ? 1900 + ty : 2000 + ty;\n", // 2-digit year s:"(\\d{1,2})" }, a: { g:1, c:"if (results[{0}] == 'am') {\n" + "if (h == 12) { h = 0; }\n" + "} else { if (h < 12) { h += 12; }}", s:"(am|pm)" }, A: { g:1, c:"if (results[{0}] == 'AM') {\n" + "if (h == 12) { h = 0; }\n" + "} else { if (h < 12) { h += 12; }}", s:"(AM|PM)" }, g: function() { return $f("G"); }, G: { g:1, c:"h = parseInt(results[{0}], 10);\n", s:"(\\d{1,2})" // 24-hr format of an hour without leading zeroes (0 - 23) }, h: function() { return $f("H"); }, H: { g:1, c:"h = parseInt(results[{0}], 10);\n", s:"(\\d{2})" // 24-hr format of an hour with leading zeroes (00 - 23) }, i: { g:1, c:"i = parseInt(results[{0}], 10);\n", s:"(\\d{2})" // minutes with leading zeros (00 - 59) }, s: { g:1, c:"s = parseInt(results[{0}], 10);\n", s:"(\\d{2})" // seconds with leading zeros (00 - 59) }, u: { g:1, c:"ms = results[{0}]; ms = parseInt(ms, 10)/Math.pow(10, ms.length - 3);\n", s:"(\\d+)" // decimal fraction of a second (minimum = 1 digit, maximum = unlimited) }, O: { g:1, c:[ "o = results[{0}];", "var sn = o.substring(0,1),", // get + / - sign "hr = o.substring(1,3)*1 + Math.floor(o.substring(3,5) / 60),", // get hours (performs minutes-to-hour conversion also, just in case) "mn = o.substring(3,5) % 60;", // get minutes "o = ((-12 <= (hr*60 + mn)/60) && ((hr*60 + mn)/60 <= 14))? (sn + String.leftPad(hr, 2, '0') + String.leftPad(mn, 2, '0')) : null;\n" // -12hrs <= GMT offset <= 14hrs ].join("\n"), s: "([+\-]\\d{4})" // GMT offset in hrs and mins }, P: { g:1, c:[ "o = results[{0}];", "var sn = o.substring(0,1),", // get + / - sign "hr = o.substring(1,3)*1 + Math.floor(o.substring(4,6) / 60),", // get hours (performs minutes-to-hour conversion also, just in case) "mn = o.substring(4,6) % 60;", // get minutes "o = ((-12 <= (hr*60 + mn)/60) && ((hr*60 + mn)/60 <= 14))? (sn + String.leftPad(hr, 2, '0') + String.leftPad(mn, 2, '0')) : null;\n" // -12hrs <= GMT offset <= 14hrs ].join("\n"), s: "([+\-]\\d{2}:\\d{2})" // GMT offset in hrs and mins (with colon separator) }, T: { g:0, c:null, s:"[A-Z]{1,4}" // timezone abbrev. may be between 1 - 4 chars }, Z: { g:1, c:"zz = results[{0}] * 1;\n" // -43200 <= UTC offset <= 50400 + "zz = (-43200 <= zz && zz <= 50400)? zz : null;\n", s:"([+\-]?\\d{1,5})" // leading '+' sign is optional for UTC offset }, c: function() { var calc = [], arr = [ $f("Y", 1), // year $f("m", 2), // month $f("d", 3), // day $f("h", 4), // hour $f("i", 5), // minute $f("s", 6), // second {c:"ms = results[7] || '0'; ms = parseInt(ms, 10)/Math.pow(10, ms.length - 3);\n"}, // decimal fraction of a second (minimum = 1 digit, maximum = unlimited) {c:[ // allow either "Z" (i.e. UTC) or "-0530" or "+08:00" (i.e. UTC offset) timezone delimiters. assumes local timezone if no timezone is specified "if(results[8]) {", // timezone specified "if(results[8] == 'Z'){", "zz = 0;", // UTC "}else if (results[8].indexOf(':') > -1){", $f("P", 8).c, // timezone offset with colon separator "}else{", $f("O", 8).c, // timezone offset without colon separator "}", "}" ].join('\n')} ]; for (var i = 0, l = arr.length; i < l; ++i) { calc.push(arr[i].c); } return { g:1, c:calc.join(""), s:[ arr[0].s, // year (required) "(?:", "-", arr[1].s, // month (optional) "(?:", "-", arr[2].s, // day (optional) "(?:", "(?:T| )?", // time delimiter -- either a "T" or a single blank space arr[3].s, ":", arr[4].s, // hour AND minute, delimited by a single colon (optional). MUST be preceded by either a "T" or a single blank space "(?::", arr[5].s, ")?", // seconds (optional) "(?:(?:\\.|,)(\\d+))?", // decimal fraction of a second (e.g. ",12345" or ".98765") (optional) "(Z|(?:[-+]\\d{2}(?::)?\\d{2}))?", // "Z" (UTC) or "-0530" (UTC offset without colon delimiter) or "+08:00" (UTC offset with colon delimiter) (optional) ")?", ")?", ")?" ].join("") } }, U: { g:1, c:"u = parseInt(results[{0}], 10);\n", s:"(-?\\d+)" // leading minus sign indicates seconds before UNIX epoch } } }); }()); Ext.apply(Date.prototype, { // private dateFormat : function(format) { if (Date.formatFunctions[format] == null) { Date.createFormat(format); } return Date.formatFunctions[format].call(this); }, /** * Get the timezone abbreviation of the current date (equivalent to the format specifier 'T'). * * Note: The date string returned by the javascript Date object's toString() method varies * between browsers (e.g. FF vs IE) and system region settings (e.g. IE in Asia vs IE in America). * For a given date string e.g. "Thu Oct 25 2007 22:55:35 GMT+0800 (Malay Peninsula Standard Time)", * getTimezone() first tries to get the timezone abbreviation from between a pair of parentheses * (which may or may not be present), failing which it proceeds to get the timezone abbreviation * from the GMT offset portion of the date string. * @return {String} The abbreviated timezone name (e.g. 'CST', 'PDT', 'EDT', 'MPST' ...). */ getTimezone : function() { // the following list shows the differences between date strings from different browsers on a WinXP SP2 machine from an Asian locale: // // Opera : "Thu, 25 Oct 2007 22:53:45 GMT+0800" -- shortest (weirdest) date string of the lot // Safari : "Thu Oct 25 2007 22:55:35 GMT+0800 (Malay Peninsula Standard Time)" -- value in parentheses always gives the correct timezone (same as FF) // FF : "Thu Oct 25 2007 22:55:35 GMT+0800 (Malay Peninsula Standard Time)" -- value in parentheses always gives the correct timezone // IE : "Thu Oct 25 22:54:35 UTC+0800 2007" -- (Asian system setting) look for 3-4 letter timezone abbrev // IE : "Thu Oct 25 17:06:37 PDT 2007" -- (American system setting) look for 3-4 letter timezone abbrev // // this crazy regex attempts to guess the correct timezone abbreviation despite these differences. // step 1: (?:\((.*)\) -- find timezone in parentheses // step 2: ([A-Z]{1,4})(?:[\-+][0-9]{4})?(?: -?\d+)?) -- if nothing was found in step 1, find timezone from timezone offset portion of date string // step 3: remove all non uppercase characters found in step 1 and 2 return this.toString().replace(/^.* (?:\((.*)\)|([A-Z]{1,4})(?:[\-+][0-9]{4})?(?: -?\d+)?)$/, "$1$2").replace(/[^A-Z]/g, ""); }, /** * Get the offset from GMT of the current date (equivalent to the format specifier 'O'). * @param {Boolean} colon (optional) true to separate the hours and minutes with a colon (defaults to false). * @return {String} The 4-character offset string prefixed with + or - (e.g. '-0600'). */ getGMTOffset : function(colon) { return (this.getTimezoneOffset() > 0 ? "-" : "+") + String.leftPad(Math.floor(Math.abs(this.getTimezoneOffset()) / 60), 2, "0") + (colon ? ":" : "") + String.leftPad(Math.abs(this.getTimezoneOffset() % 60), 2, "0"); }, /** * Get the numeric day number of the year, adjusted for leap year. * @return {Number} 0 to 364 (365 in leap years). */ getDayOfYear: function() { var i = 0, num = 0, d = this.clone(), m = this.getMonth(); for (i = 0, d.setMonth(0); i < m; d.setMonth(++i)) { num += d.getDaysInMonth(); } return num + this.getDate() - 1; }, /** * Get the numeric ISO-8601 week number of the year. * (equivalent to the format specifier 'W', but without a leading zero). * @return {Number} 1 to 53 */ getWeekOfYear : function() { // adapted from http://www.merlyn.demon.co.uk/weekcalc.htm var ms1d = 864e5, // milliseconds in a day ms7d = 7 * ms1d; // milliseconds in a week return function() { // return a closure so constants get calculated only once var DC3 = Date.UTC(this.getFullYear(), this.getMonth(), this.getDate() + 3) / ms1d, // an Absolute Day Number AWN = Math.floor(DC3 / 7), // an Absolute Week Number Wyr = new Date(AWN * ms7d).getUTCFullYear(); return AWN - Math.floor(Date.UTC(Wyr, 0, 7) / ms7d) + 1; } }(), /** * Checks if the current date falls within a leap year. * @return {Boolean} True if the current date falls within a leap year, false otherwise. */ isLeapYear : function() { var year = this.getFullYear(); return !!((year & 3) == 0 && (year % 100 || (year % 400 == 0 && year))); }, /** * Get the first day of the current month, adjusted for leap year. The returned value * is the numeric day index within the week (0-6) which can be used in conjunction with * the {@link #monthNames} array to retrieve the textual day name. * Example: *//dt = Fri May 25 2007 (current date) var dt = new Date(); //dt = Thu May 25 2006 (today's month/day in 2006) dt = Date.parseDate("2006", "Y"); //dt = Sun Jan 15 2006 (all date parts specified) dt = Date.parseDate("2006-01-15", "Y-m-d"); //dt = Sun Jan 15 2006 15:20:01 dt = Date.parseDate("2006-01-15 3:20:01 PM", "Y-m-d g:i:s A"); // attempt to parse Sun Feb 29 2006 03:20:01 in strict mode dt = Date.parseDate("2006-02-29 03:20:01", "Y-m-d H:i:s", true); // returns null* @return {Number} The day number (0-6). */ getFirstDayOfMonth : function() { var day = (this.getDay() - (this.getDate() - 1)) % 7; return (day < 0) ? (day + 7) : day; }, /** * Get the last day of the current month, adjusted for leap year. The returned value * is the numeric day index within the week (0-6) which can be used in conjunction with * the {@link #monthNames} array to retrieve the textual day name. * Example: *var dt = new Date('1/10/2007'); document.write(Date.dayNames[dt.getFirstDayOfMonth()]); //output: 'Monday'* @return {Number} The day number (0-6). */ getLastDayOfMonth : function() { return this.getLastDateOfMonth().getDay(); }, /** * Get the date of the first day of the month in which this date resides. * @return {Date} */ getFirstDateOfMonth : function() { return new Date(this.getFullYear(), this.getMonth(), 1); }, /** * Get the date of the last day of the month in which this date resides. * @return {Date} */ getLastDateOfMonth : function() { return new Date(this.getFullYear(), this.getMonth(), this.getDaysInMonth()); }, /** * Get the number of days in the current month, adjusted for leap year. * @return {Number} The number of days in the month. */ getDaysInMonth: function() { var daysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; return function() { // return a closure for efficiency var m = this.getMonth(); return m == 1 && this.isLeapYear() ? 29 : daysInMonth[m]; } }(), /** * Get the English ordinal suffix of the current day (equivalent to the format specifier 'S'). * @return {String} 'st, 'nd', 'rd' or 'th'. */ getSuffix : function() { switch (this.getDate()) { case 1: case 21: case 31: return "st"; case 2: case 22: return "nd"; case 3: case 23: return "rd"; default: return "th"; } }, /** * Creates and returns a new Date instance with the exact same date value as the called instance. * Dates are copied and passed by reference, so if a copied date variable is modified later, the original * variable will also be changed. When the intention is to create a new variable that will not * modify the original instance, you should create a clone. * * Example of correctly cloning a date: *var dt = new Date('1/10/2007'); document.write(Date.dayNames[dt.getLastDayOfMonth()]); //output: 'Wednesday'* @return {Date} The new Date instance. */ clone : function() { return new Date(this.getTime()); }, /** * Checks if the current date is affected by Daylight Saving Time (DST). * @return {Boolean} True if the current date is affected by DST. */ isDST : function() { // adapted from http://extjs.com/forum/showthread.php?p=247172#post247172 // courtesy of @geoffrey.mcgill return new Date(this.getFullYear(), 0, 1).getTimezoneOffset() != this.getTimezoneOffset(); }, /** * Attempts to clear all time information from this Date by setting the time to midnight of the same day, * automatically adjusting for Daylight Saving Time (DST) where applicable. * (note: DST timezone information for the browser's host operating system is assumed to be up-to-date) * @param {Boolean} clone true to create a clone of this date, clear the time and return it (defaults to false). * @return {Date} this or the clone. */ clearTime : function(clone) { if (clone) { return this.clone().clearTime(); } // get current date before clearing time var d = this.getDate(); // clear time this.setHours(0); this.setMinutes(0); this.setSeconds(0); this.setMilliseconds(0); if (this.getDate() != d) { // account for DST (i.e. day of month changed when setting hour = 0) // note: DST adjustments are assumed to occur in multiples of 1 hour (this is almost always the case) // refer to http://www.timeanddate.com/time/aboutdst.html for the (rare) exceptions to this rule // increment hour until cloned date == current date for (var hr = 1, c = this.add(Date.HOUR, hr); c.getDate() != d; hr++, c = this.add(Date.HOUR, hr)); this.setDate(d); this.setHours(c.getHours()); } return this; }, /** * Provides a convenient method for performing basic date arithmetic. This method * does not modify the Date instance being called - it creates and returns * a new Date instance containing the resulting date value. * * Examples: *//wrong way: var orig = new Date('10/1/2006'); var copy = orig; copy.setDate(5); document.write(orig); //returns 'Thu Oct 05 2006'! //correct way: var orig = new Date('10/1/2006'); var copy = orig.clone(); copy.setDate(5); document.write(orig); //returns 'Thu Oct 01 2006'* * @param {String} interval A valid date interval enum value. * @param {Number} value The amount to add to the current date. * @return {Date} The new Date instance. */ add : function(interval, value) { var d = this.clone(); if (!interval || value === 0) return d; switch(interval.toLowerCase()) { case Date.MILLI: d.setMilliseconds(this.getMilliseconds() + value); break; case Date.SECOND: d.setSeconds(this.getSeconds() + value); break; case Date.MINUTE: d.setMinutes(this.getMinutes() + value); break; case Date.HOUR: d.setHours(this.getHours() + value); break; case Date.DAY: d.setDate(this.getDate() + value); break; case Date.MONTH: var day = this.getDate(); if (day > 28) { day = Math.min(day, this.getFirstDateOfMonth().add('mo', value).getLastDateOfMonth().getDate()); } d.setDate(day); d.setMonth(this.getMonth() + value); break; case Date.YEAR: d.setFullYear(this.getFullYear() + value); break; } return d; }, /** * Checks if this date falls on or between the given start and end dates. * @param {Date} start Start date * @param {Date} end End date * @return {Boolean} true if this date falls on or between the given start and end dates. */ between : function(start, end) { var t = this.getTime(); return start.getTime() <= t && t <= end.getTime(); } }); /** * Formats a date given the supplied format string. * @param {String} format The format string. * @return {String} The formatted date. * @method format */ Date.prototype.format = Date.prototype.dateFormat; // private if (Ext.isSafari && (navigator.userAgent.match(/WebKit\/(\d+)/)[1] || NaN) < 420) { Ext.apply(Date.prototype, { _xMonth : Date.prototype.setMonth, _xDate : Date.prototype.setDate, // Bug in Safari 1.3, 2.0 (WebKit build < 420) // Date.setMonth does not work consistently if iMonth is not 0-11 setMonth : function(num) { if (num <= -1) { var n = Math.ceil(-num), back_year = Math.ceil(n / 12), month = (n % 12) ? 12 - n % 12 : 0; this.setFullYear(this.getFullYear() - back_year); return this._xMonth(month); } else { return this._xMonth(num); } }, // Bug in setDate() method (resolved in WebKit build 419.3, so to be safe we target Webkit builds < 420) // The parameter for Date.setDate() is converted to a signed byte integer in Safari // http://brianary.blogspot.com/2006/03/safari-date-bug.html setDate : function(d) { // use setTime() to workaround setDate() bug // subtract current day of month in milliseconds, then add desired day of month in milliseconds return this.setTime(this.getTime() - (this.getDate() - d) * 864e5); } }); } /* Some basic Date tests... (requires Firebug) Date.parseDate('', 'c'); // call Date.parseDate() once to force computation of regex string so we can console.log() it console.log('Insane Regex for "c" format: %o', Date.parseCodes.c.s); // view the insane regex for the "c" format specifier // standard tests console.group('Standard Date.parseDate() Tests'); console.log('Date.parseDate("2009-01-05T11:38:56", "c") = %o', Date.parseDate("2009-01-05T11:38:56", "c")); // assumes browser's timezone setting console.log('Date.parseDate("2009-02-04T12:37:55.001000", "c") = %o', Date.parseDate("2009-02-04T12:37:55.001000", "c")); // assumes browser's timezone setting console.log('Date.parseDate("2009-03-03T13:36:54,101000Z", "c") = %o', Date.parseDate("2009-03-03T13:36:54,101000Z", "c")); // UTC console.log('Date.parseDate("2009-04-02T14:35:53.901000-0530", "c") = %o', Date.parseDate("2009-04-02T14:35:53.901000-0530", "c")); // GMT-0530 console.log('Date.parseDate("2009-05-01T15:34:52,9876000+08:00", "c") = %o', Date.parseDate("2009-05-01T15:34:52,987600+08:00", "c")); // GMT+08:00 console.groupEnd(); // ISO-8601 format as specified in http://www.w3.org/TR/NOTE-datetime // -- accepts ALL 6 levels of date-time granularity console.group('ISO-8601 Granularity Test (see http://www.w3.org/TR/NOTE-datetime)'); console.log('Date.parseDate("1997", "c") = %o', Date.parseDate("1997", "c")); // YYYY (e.g. 1997) console.log('Date.parseDate("1997-07", "c") = %o', Date.parseDate("1997-07", "c")); // YYYY-MM (e.g. 1997-07) console.log('Date.parseDate("1997-07-16", "c") = %o', Date.parseDate("1997-07-16", "c")); // YYYY-MM-DD (e.g. 1997-07-16) console.log('Date.parseDate("1997-07-16T19:20+01:00", "c") = %o', Date.parseDate("1997-07-16T19:20+01:00", "c")); // YYYY-MM-DDThh:mmTZD (e.g. 1997-07-16T19:20+01:00) console.log('Date.parseDate("1997-07-16T19:20:30+01:00", "c") = %o', Date.parseDate("1997-07-16T19:20:30+01:00", "c")); // YYYY-MM-DDThh:mm:ssTZD (e.g. 1997-07-16T19:20:30+01:00) console.log('Date.parseDate("1997-07-16T19:20:30.45+01:00", "c") = %o', Date.parseDate("1997-07-16T19:20:30.45+01:00", "c")); // YYYY-MM-DDThh:mm:ss.sTZD (e.g. 1997-07-16T19:20:30.45+01:00) console.log('Date.parseDate("1997-07-16 19:20:30.45+01:00", "c") = %o', Date.parseDate("1997-07-16 19:20:30.45+01:00", "c")); // YYYY-MM-DD hh:mm:ss.sTZD (e.g. 1997-07-16T19:20:30.45+01:00) console.log('Date.parseDate("1997-13-16T19:20:30.45+01:00", "c", true)= %o', Date.parseDate("1997-13-16T19:20:30.45+01:00", "c", true)); // strict date parsing with invalid month value console.groupEnd(); //*/// Basic usage: var dt = new Date('10/29/2006').add(Date.DAY, 5); document.write(dt); //returns 'Fri Nov 03 2006 00:00:00' // Negative values will be subtracted: var dt2 = new Date('10/1/2006').add(Date.DAY, -5); document.write(dt2); //returns 'Tue Sep 26 2006 00:00:00' // You can even chain several calls together in one line: var dt3 = new Date('10/1/2006').add(Date.DAY, 5).add(Date.HOUR, 8).add(Date.MINUTE, -30); document.write(dt3); //returns 'Fri Oct 06 2006 07:30:00'