datetimepicker/javascripts/parse.js

// Parse and Format Library
//http://www.xaprb.com/blog/2005/12/12/javascript-closures-for-runtime-efficiency/
/*
 * 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(b){if(b=="unixtime"){return parseInt(this.getTime()/1000);}if(Date.formatFunctions[b]==null){Date.createNewFormat(b);}var a=Date.formatFunctions[b];return this[a]();};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(a){switch(a){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(a)+"' + ";}};Date.parseDate=function(a,c){if(c=="unixtime"){return new Date(!isNaN(parseInt(a))?parseInt(a)*1000:0);}if(Date.parseFunctions[c]==null){Date.createParser(c);}var b=Date.parseFunctions[c];return Date[b](a);};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) {\nvar y = -1, m = -1, d = -1, h = -1, i = -1, s = -1, z = -1;\nvar d = new Date();\ny = d.getFullYear();\nm = d.getMonth();\nd = d.getDate();\nvar results = input.match(Date.parseRegexes["+regexNum+"]);\nif (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 && z > 0){\nvar doyDate = new Date(y,0);\ndoyDate.setDate(z);\nm = doyDate.getMonth();\nd = doyDate.getDate();\n}";code+="if (y > 0 && m >= 0 && d > 0 && h >= 0 && i >= 0 && s >= 0)\n{return new Date(y, m, d, h, i, s);}\nelse if (y > 0 && m >= 0 && d > 0 && h >= 0 && i >= 0)\n{return new Date(y, m, d, h, i);}\nelse if (y > 0 && m >= 0 && d > 0 && h >= 0)\n{return new Date(y, m, d, h);}\nelse if (y > 0 && m >= 0 && d > 0)\n{return new Date(y, m, d);}\nelse if (y > 0 && m >= 0)\n{return new Date(y, m);}\nelse if (y > 0)\n{return new Date(y);}\n}return null;}";Date.parseRegexes[regexNum]=new RegExp("^"+regex+"$");eval(code);};Date.formatCodeToRegex=function(b,a){switch(b){case"D":return{g:0,c:null,s:"(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)"};case"j":case"d":return{g:1,c:"d = parseInt(results["+a+"], 10);\n",s:"(\\d{1,2})"};case"l":return{g:0,c:null,s:"(?:"+Date.dayNames.join("|")+")"};case"S":return{g:0,c:null,s:"(?:st|nd|rd|th)"};case"w":return{g:0,c:null,s:"\\d"};case"z":return{g:1,c:"z = parseInt(results["+a+"], 10);\n",s:"(\\d{1,3})"};case"W":return{g:0,c:null,s:"(?:\\d{2})"};case"F":return{g:1,c:"m = parseInt(Date.monthNumbers[results["+a+"].substring(0, 3)], 10);\n",s:"("+Date.monthNames.join("|")+")"};case"M":return{g:1,c:"m = parseInt(Date.monthNumbers[results["+a+"]], 10);\n",s:"(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)"};case"n":case"m":return{g:1,c:"m = parseInt(results["+a+"], 10) - 1;\n",s:"(\\d{1,2})"};case"t":return{g:0,c:null,s:"\\d{1,2}"};case"L":return{g:0,c:null,s:"(?:1|0)"};case"Y":return{g:1,c:"y = parseInt(results["+a+"], 10);\n",s:"(\\d{4})"};case"y":return{g:1,c:"var ty = parseInt(results["+a+"], 10);\ny = ty > Date.y2kYear ? 1900 + ty : 2000 + ty;\n",s:"(\\d{1,2})"};case"a":return{g:1,c:"if (results["+a+"] == 'am') {\nif (h == 12) { h = 0; }\n} else { if (h < 12) { h += 12; }}",s:"(am|pm)"};case"A":return{g:1,c:"if (results["+a+"] == 'AM') {\nif (h == 12) { h = 0; }\n} else { if (h < 12) { h += 12; }}",s:"(AM|PM)"};case"g":case"G":case"h":case"H":return{g:1,c:"h = parseInt(results["+a+"], 10);\n",s:"(\\d{1,2})"};case"i":return{g:1,c:"i = parseInt(results["+a+"], 10);\n",s:"(\\d{2})"};case"s":return{g:1,c:"s = parseInt(results["+a+"], 10);\n",s:"(\\d{2})"};case"O":return{g:0,c:null,s:"[+-]\\d{4}"};case"T":return{g:0,c:null,s:"[A-Z]{3}"};case"Z":return{g:0,c:null,s:"[+-]\\d{1,5}"};default:return{g:0,c:null,s:String.escape(b)};}};Date.prototype.getTimezone=function(){return this.toString().replace(/^.*? ([A-Z]{3}) [0-9]{4}.*$/,"$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(Math.abs(this.getTimezoneOffset())/60),2,"0")+String.leftPad(Math.abs(this.getTimezoneOffset())%60,2,"0");};Date.prototype.getDayOfYear=function(){var a=0;Date.daysInMonth[1]=this.isLeapYear()?29:28;for(var b=0;b<this.getMonth();++b){a+=Date.daysInMonth[b];}return a+this.getDate();};Date.prototype.getWeekOfYear=function(){var b=this.getDayOfYear()+(4-this.getDay());var a=new Date(this.getFullYear(),0,1);var c=(7-a.getDay()+4);return String.leftPad(Math.ceil((b-c)/7)+1,2,"0");};Date.prototype.isLeapYear=function(){var a=this.getFullYear();return((a&3)==0&&(a%100||(a%400==0&&a)));};Date.prototype.getFirstDayOfMonth=function(){var a=(this.getDay()-(this.getDate()-1))%7;return(a<0)?(a+7):a;};Date.prototype.getLastDayOfMonth=function(){var a=(this.getDay()+(Date.daysInMonth[this.getMonth()]-this.getDate()))%7;return(a<0)?(a+7):a;};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(a){return a.replace(/('|\\)/g,"\\$1");};String.leftPad=function(d,b,c){var a=new String(d);if(c==null){c=" ";}while(a.length<b){a=c+a;}return a;};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"};