diff -r 000000000000 -r 40c8f766c9b8 src/cm/media/js/lib/flexible-js-formatting/dates/date-functions.js --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cm/media/js/lib/flexible-js-formatting/dates/date-functions.js Mon Nov 23 15:14:29 2009 +0100 @@ -0,0 +1,434 @@ +/* + * Copyright (C) 2004 Baron Schwartz + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by the + * Free Software Foundation, version 2.1. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more + * details. + */ + +Date.parseFunctions = {count:0}; +Date.parseRegexes = []; +Date.formatFunctions = {count:0}; + +Date.prototype.dateFormat = function(format, ignore_offset) { + if (Date.formatFunctions[format] == null) { + Date.createNewFormat(format); + } + var func = Date.formatFunctions[format]; + if (ignore_offset || ! this.offset) { + return this[func](); + } else { + return (new Date(this.valueOf() - this.offset))[func](); + } +}; + +Date.createNewFormat = function(format) { + var funcName = "format" + Date.formatFunctions.count++; + Date.formatFunctions[format] = funcName; + var code = "Date.prototype." + funcName + " = function(){return "; + var special = false; + var ch = ''; + for (var i = 0; i < format.length; ++i) { + ch = format.charAt(i); + if (!special && ch == "\\") { + special = true; + } + else if (special) { + special = false; + code += "'" + String.escape(ch) + "' + "; + } + else { + code += Date.getFormatCode(ch); + } + } + eval(code.substring(0, code.length - 3) + ";}"); +}; + +Date.getFormatCode = function(character) { + switch (character) { + case "d": + return "String.leftPad(this.getDate(), 2, '0') + "; + case "D": + return "Date.dayNames[this.getDay()].substring(0, 3) + "; + case "j": + return "this.getDate() + "; + case "l": + return "Date.dayNames[this.getDay()] + "; + case "S": + return "this.getSuffix() + "; + case "w": + return "this.getDay() + "; + case "z": + return "this.getDayOfYear() + "; + case "W": + return "this.getWeekOfYear() + "; + case "F": + return "Date.monthNames[this.getMonth()] + "; + case "m": + return "String.leftPad(this.getMonth() + 1, 2, '0') + "; + case "M": + return "Date.monthNames[this.getMonth()].substring(0, 3) + "; + case "n": + return "(this.getMonth() + 1) + "; + case "t": + return "this.getDaysInMonth() + "; + case "L": + return "(this.isLeapYear() ? 1 : 0) + "; + case "Y": + return "this.getFullYear() + "; + case "y": + return "('' + this.getFullYear()).substring(2, 4) + "; + case "a": + return "(this.getHours() < 12 ? 'am' : 'pm') + "; + case "A": + return "(this.getHours() < 12 ? 'AM' : 'PM') + "; + case "g": + return "((this.getHours() %12) ? this.getHours() % 12 : 12) + "; + case "G": + return "this.getHours() + "; + case "h": + return "String.leftPad((this.getHours() %12) ? this.getHours() % 12 : 12, 2, '0') + "; + case "H": + return "String.leftPad(this.getHours(), 2, '0') + "; + case "i": + return "String.leftPad(this.getMinutes(), 2, '0') + "; + case "s": + return "String.leftPad(this.getSeconds(), 2, '0') + "; + case "O": + return "this.getGMTOffset() + "; + case "T": + return "this.getTimezone() + "; + case "Z": + return "(this.getTimezoneOffset() * -60) + "; + default: + return "'" + String.escape(character) + "' + "; + } +}; + +Date.parseDate = function(input, format) { + if (Date.parseFunctions[format] == null) { + Date.createParser(format); + } + var func = Date.parseFunctions[format]; + return Date[func](input); +}; + +Date.createParser = function(format) { + var funcName = "parse" + Date.parseFunctions.count++; + var regexNum = Date.parseRegexes.length; + var currentGroup = 1; + Date.parseFunctions[format] = funcName; + + var code = "Date." + funcName + " = function(input){\n" + + "var y = -1, m = -1, d = -1, h = -1, i = -1, s = -1, z = 0;\n" + + "var d = new Date();\n" + + "y = d.getFullYear();\n" + + "m = d.getMonth();\n" + + "d = d.getDate();\n" + + "var results = input.match(Date.parseRegexes[" + regexNum + "]);\n" + + "if (results && results.length > 0) {" ; + var regex = ""; + + var special = false; + var ch = ''; + for (var i = 0; i < format.length; ++i) { + ch = format.charAt(i); + if (!special && ch == "\\") { + special = true; + } + else if (special) { + special = false; + regex += String.escape(ch); + } + else { + obj = Date.formatCodeToRegex(ch, currentGroup); + currentGroup += obj.g; + regex += obj.s; + if (obj.g && obj.c) { + code += obj.c; + } + } + } + + code += "if (y > 0 && m >= 0 && d > 0 && h >= 0 && i >= 0 && s >= 0)\n" + + "{return new Date(y, m, d, h, i, s).applyOffset(z);}\n" + + "else if (y > 0 && m >= 0 && d > 0 && h >= 0 && i >= 0)\n" + + "{return new Date(y, m, d, h, i).applyOffset(z);}\n" + + "else if (y > 0 && m >= 0 && d > 0 && h >= 0)\n" + + "{return new Date(y, m, d, h).applyOffset(z);}\n" + + "else if (y > 0 && m >= 0 && d > 0)\n" + + "{return new Date(y, m, d).applyOffset(z);}\n" + + "else if (y > 0 && m >= 0)\n" + + "{return new Date(y, m).applyOffset(z);}\n" + + "else if (y > 0)\n" + + "{return new Date(y).applyOffset(z);}\n" + + "}return null;}"; + + Date.parseRegexes[regexNum] = new RegExp("^" + regex + "$"); + eval(code); +}; + +Date.formatCodeToRegex = function(character, currentGroup) { + switch (character) { + case "D": + return {g:0, + c:null, + s:"(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)"}; + case "j": + case "d": + return {g:1, + c:"d = parseInt(results[" + currentGroup + "], 10);\n", + s:"(\\d{1,2})"}; + case "l": + return {g:0, + c:null, + s:"(?:" + Date.dayNames.join("|") + ")"}; + case "S": + return {g:0, + c:null, + s:"(?:st|nd|rd|th)"}; + case "w": + return {g:0, + c:null, + s:"\\d"}; + case "z": + return {g:0, + c:null, + s:"(?:\\d{1,3})"}; + case "W": + return {g:0, + c:null, + s:"(?:\\d{2})"}; + case "F": + return {g:1, + c:"m = parseInt(Date.monthNumbers[results[" + currentGroup + "].substring(0, 3)], 10);\n", + s:"(" + Date.monthNames.join("|") + ")"}; + case "M": + return {g:1, + c:"m = parseInt(Date.monthNumbers[results[" + currentGroup + "]], 10);\n", + s:"(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)"}; + case "n": + case "m": + return {g:1, + c:"m = parseInt(results[" + currentGroup + "], 10) - 1;\n", + s:"(\\d{1,2})"}; + case "t": + return {g:0, + c:null, + s:"\\d{1,2}"}; + case "L": + return {g:0, + c:null, + s:"(?:1|0)"}; + case "Y": + return {g:1, + c:"y = parseInt(results[" + currentGroup + "], 10);\n", + s:"(\\d{4})"}; + case "y": + return {g:1, + c:"var ty = parseInt(results[" + currentGroup + "], 10);\n" + + "y = ty > Date.y2kYear ? 1900 + ty : 2000 + ty;\n", + s:"(\\d{1,2})"}; + case "a": + return {g:1, + c:"if (results[" + currentGroup + "] == 'am') {\n" + + "if (h == 12) { h = 0; }\n" + + "} else { if (h < 12) { h += 12; }}", + s:"(am|pm)"}; + case "A": + return {g:1, + c:"if (results[" + currentGroup + "] == 'AM') {\n" + + "if (h == 12) { h = 0; }\n" + + "} else { if (h < 12) { h += 12; }}", + s:"(AM|PM)"}; + case "g": + case "G": + case "h": + case "H": + return {g:1, + c:"h = parseInt(results[" + currentGroup + "], 10);\n", + s:"(\\d{1,2})"}; + case "i": + return {g:1, + c:"i = parseInt(results[" + currentGroup + "], 10);\n", + s:"(\\d{2})"}; + case "s": + return {g:1, + c:"s = parseInt(results[" + currentGroup + "], 10);\n", + s:"(\\d{2})"}; + case "O": + case "P": + return {g:1, + c:"z = Date.parseOffset(results[" + currentGroup + "], 10);\n", + s:"(Z|[+-]\\d{2}:?\\d{2})"}; // "Z", "+05:00", "+0500" all acceptable. + case "T": + return {g:0, + c:null, + s:"[A-Z]{3}"}; + case "Z": + return {g:1, + c:"s = parseInt(results[" + currentGroup + "], 10);\n", + s:"([+-]\\d{1,5})"}; + default: + return {g:0, + c:null, + s:String.escape(character)}; + } +}; + +Date.parseOffset = function(str) { + if (str == "Z") { return 0 ; } // UTC, no offset. + var seconds ; + seconds = parseInt(str[0] + str[1] + str[2]) * 3600 ; // e.g., "+05" or "-08" + if (str[3] == ":") { // "+HH:MM" is preferred iso8601 format ("O") + seconds += parseInt(str[4] + str[5]) * 60; + } else { // "+HHMM" is frequently used, though. ("P") + seconds += parseInt(str[3] + str[4]) * 60; + } + return seconds ; +}; + +// convert the parsed date into UTC, but store the offset so we can optionally use it in dateFormat() +Date.prototype.applyOffset = function(offset_seconds) { + this.offset = offset_seconds * 1000 ; + this.setTime(this.valueOf() + this.offset); + return this ; +}; + +Date.prototype.getTimezone = function() { + return this.toString().replace( + /^.*? ([A-Z]{3}) [0-9]{4}.*$/, "$1").replace( + /^.*?\(([A-Z])[a-z]+ ([A-Z])[a-z]+ ([A-Z])[a-z]+\)$/, "$1$2$3").replace( + /^.*?[0-9]{4} \(([A-Z]{3})\)/, "$1"); +}; + +Date.prototype.getGMTOffset = function() { + return (this.getTimezoneOffset() > 0 ? "-" : "+") + + String.leftPad(Math.floor(this.getTimezoneOffset() / 60), 2, "0") + + String.leftPad(this.getTimezoneOffset() % 60, 2, "0"); +}; + +Date.prototype.getDayOfYear = function() { + var num = 0; + Date.daysInMonth[1] = this.isLeapYear() ? 29 : 28; + for (var i = 0; i < this.getMonth(); ++i) { + num += Date.daysInMonth[i]; + } + return num + this.getDate() - 1; +}; + +Date.prototype.getWeekOfYear = function() { + // Skip to Thursday of this week + var now = this.getDayOfYear() + (4 - this.getDay()); + // Find the first Thursday of the year + var jan1 = new Date(this.getFullYear(), 0, 1); + var then = (7 - jan1.getDay() + 4); + document.write(then); + return String.leftPad(((now - then) / 7) + 1, 2, "0"); +}; + +Date.prototype.isLeapYear = function() { + var year = this.getFullYear(); + return ((year & 3) == 0 && (year % 100 || (year % 400 == 0 && year))); +}; + +Date.prototype.getFirstDayOfMonth = function() { + var day = (this.getDay() - (this.getDate() - 1)) % 7; + return (day < 0) ? (day + 7) : day; +}; + +Date.prototype.getLastDayOfMonth = function() { + var day = (this.getDay() + (Date.daysInMonth[this.getMonth()] - this.getDate())) % 7; + return (day < 0) ? (day + 7) : day; +}; + +Date.prototype.getDaysInMonth = function() { + Date.daysInMonth[1] = this.isLeapYear() ? 29 : 28; + return Date.daysInMonth[this.getMonth()]; +}; + +Date.prototype.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"; + } +}; + +String.escape = function(string) { + return string.replace(/('|\\)/g, "\\$1"); +}; + +String.leftPad = function (val, size, ch) { + var result = new String(val); + if (ch == null) { + ch = " "; + } + while (result.length < size) { + result = ch + result; + } + return result; +}; + +Date.daysInMonth = [31,28,31,30,31,30,31,31,30,31,30,31]; +Date.monthNames = + ["January", + "February", + "March", + "April", + "May", + "June", + "July", + "August", + "September", + "October", + "November", + "December"]; +Date.dayNames = + ["Sunday", + "Monday", + "Tuesday", + "Wednesday", + "Thursday", + "Friday", + "Saturday"]; +Date.y2kYear = 50; +Date.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}; +Date.patterns = { + ISO8601LongPattern: "Y\\-m\\-d\\TH\\:i\\:sO", + ISO8601ShortPattern: "Y\\-m\\-d", + ShortDatePattern: "n/j/Y", + LongDatePattern: "l, F d, Y", + FullDateTimePattern: "l, F d, Y g:i:s A", + MonthDayPattern: "F d", + ShortTimePattern: "g:i A", + LongTimePattern: "g:i:s A", + SortableDateTimePattern: "Y-m-d\\TH:i:s", + UniversalSortableDateTimePattern: "Y-m-d H:i:sO", + YearMonthPattern: "F, Y"};