/** + * @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: + *+ + \ No newline at end of file+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 month +Example:
+ * @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' +