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/*↩
* Copyright (C) 2004 Baron Schwartz <baron at sequent dot org>↩
*↩
* 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) {↩
if (Date.formatFunctions[format] == null) {↩
Date.createNewFormat(format);↩
}↩
var func = Date.formatFunctions[format];↩
return this[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;\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);}\n"↩
+ "else if (y > 0 && m >= 0 && d > 0 && h >= 0 && i >= 0)\n"↩
+ "{return new Date(y, m, d, h, i);}\n"↩
+ "else if (y > 0 && m >= 0 && d > 0 && h >= 0)\n"↩
+ "{return new Date(y, m, d, h);}\n"↩
+ "else if (y > 0 && m >= 0 && d > 0)\n"↩
+ "{return new Date(y, m, d);}\n"↩
+ "else if (y > 0 && m >= 0)\n"↩
+ "{return new Date(y, m);}\n"↩
+ "else if (y > 0)\n"↩
+ "{return new Date(y);}\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":↩
return {g:0,↩
c:null,↩
s:"[+-]\\d{4}"};↩
case "T":↩
return {g:0,↩
c:null,↩
s:"[A-Z]{3}"};↩
case "Z":↩
return {g:0,↩
c:null,↩
s:"[+-]\\d{1,5}"};↩
default:↩
return {g:0,↩
c:null,↩
s:String.escape(character)};↩
}↩
}↩
↩
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");↩
}↩
↩
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 H:i:s",↩
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"};↩
↩
var date = new Date("1/1/2007 1:11:11");↩
↩
for (i = 0; i < 4000; ++i) {↩
var shortFormat = date.dateFormat("Y-m-d");↩
var longFormat = date.dateFormat("l, F d, Y g:i:s A");↩
date.setTime(date.getTime() + 84266956);↩
}↩