mirror of
https://github.com/xdan/datetimepicker.git
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391 lines
12 KiB
JavaScript
391 lines
12 KiB
JavaScript
/*
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* Copyright (C) 2004 Baron Schwartz <baron at sequent dot org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, version 2.1.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*/
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Date.parseFunctions = {
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count: 0
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};
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Date.parseRegexes = [];
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Date.formatFunctions = {
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count: 0
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};
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Date.prototype.dateFormat = function (format) {
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if( format=='unixtime' )
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return parseInt(this.getTime()/1000);
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if (Date.formatFunctions[format] == null) {
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Date.createNewFormat(format)
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}
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var func = Date.formatFunctions[format];
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return this[func]()
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};
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Date.createNewFormat = function (format) {
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var funcName = "format" + Date.formatFunctions.count++;
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Date.formatFunctions[format] = funcName;
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var code = "Date.prototype." + funcName + " = function() {return ";
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var special = false;
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var ch = '';
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for (var i = 0; i < format.length; ++i) {
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ch = format.charAt(i);
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if (!special && ch == "\\") {
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special = true
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} else if (special) {
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special = false;
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code += "'" + String.escape(ch) + "' + "
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} else {
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code += Date.getFormatCode(ch)
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}
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}
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eval(code.substring(0, code.length - 3) + ";}")
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};
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Date.getFormatCode = function (character) {
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switch (character) {
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case "d":
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return "String.leftPad(this.getDate(), 2, '0') + ";
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case "D":
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return "Date.dayNames[this.getDay()].substring(0, 3) + ";
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case "j":
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return "this.getDate() + ";
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case "l":
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return "Date.dayNames[this.getDay()] + ";
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case "S":
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return "this.getSuffix() + ";
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case "w":
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return "this.getDay() + ";
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case "z":
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return "this.getDayOfYear() + ";
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case "W":
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return "this.getWeekOfYear() + ";
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case "F":
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return "Date.monthNames[this.getMonth()] + ";
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case "m":
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return "String.leftPad(this.getMonth() + 1, 2, '0') + ";
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case "M":
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return "Date.monthNames[this.getMonth()].substring(0, 3) + ";
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case "n":
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return "(this.getMonth() + 1) + ";
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case "t":
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return "this.getDaysInMonth() + ";
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case "L":
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return "(this.isLeapYear() ? 1 : 0) + ";
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case "Y":
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return "this.getFullYear() + ";
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case "y":
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return "('' + this.getFullYear()).substring(2, 4) + ";
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case "a":
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return "(this.getHours() < 12 ? 'am' : 'pm') + ";
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case "A":
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return "(this.getHours() < 12 ? 'AM' : 'PM') + ";
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case "g":
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return "((this.getHours() %12) ? this.getHours() % 12 : 12) + ";
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case "G":
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return "this.getHours() + ";
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case "h":
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return "String.leftPad((this.getHours() %12) ? this.getHours() % 12 : 12, 2, '0') + ";
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case "H":
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return "String.leftPad(this.getHours(), 2, '0') + ";
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case "i":
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return "String.leftPad(this.getMinutes(), 2, '0') + ";
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case "s":
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return "String.leftPad(this.getSeconds(), 2, '0') + ";
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case "O":
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return "this.getGMTOffset() + ";
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case "T":
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return "this.getTimezone() + ";
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case "Z":
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return "(this.getTimezoneOffset() * -60) + ";
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default:
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return "'" + String.escape(character) + "' + "
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}
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};
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Date.parseDate = function (input, format) {
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if( format=='unixtime' )
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return new Date( !isNaN(parseInt(input))?parseInt(input)*1000:0 );
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if (Date.parseFunctions[format] == null) {
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Date.createParser(format)
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}
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var func = Date.parseFunctions[format];
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return Date[func](input)
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};
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Date.createParser = function (format) {
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var funcName = "parse" + Date.parseFunctions.count++;
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var regexNum = Date.parseRegexes.length;
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var currentGroup = 1;
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Date.parseFunctions[format] = funcName;
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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) {";
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var regex = "";
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var special = false;
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var ch = '';
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for (var i = 0; i < format.length; ++i) {
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ch = format.charAt(i);
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if (!special && ch == "\\") {
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special = true
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} else if (special) {
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special = false;
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regex += String.escape(ch)
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} else {
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obj = Date.formatCodeToRegex(ch, currentGroup);
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currentGroup += obj.g;
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regex += obj.s;
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if (obj.g && obj.c) {
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code += obj.c
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}
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}
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}
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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;}";
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Date.parseRegexes[regexNum] = new RegExp("^" + regex + "$");
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eval(code)
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};
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Date.formatCodeToRegex = function (character, currentGroup) {
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switch (character) {
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case "D":
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return {
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g: 0,
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c: null,
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s: "(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)"
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};
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case "j":
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case "d":
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return {
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g: 1,
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c: "d = parseInt(results[" + currentGroup + "], 10);\n",
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s: "(\\d{1,2})"
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};
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case "l":
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return {
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g: 0,
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c: null,
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s: "(?:" + Date.dayNames.join("|") + ")"
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};
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case "S":
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return {
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g: 0,
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c: null,
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s: "(?:st|nd|rd|th)"
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};
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case "w":
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return {
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g: 0,
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c: null,
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s: "\\d"
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};
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case "z":
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return {
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g: 0,
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c: null,
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s: "(?:\\d{1,3})"
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};
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case "W":
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return {
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g: 0,
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c: null,
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s: "(?:\\d{2})"
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};
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case "F":
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return {
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g: 1,
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c: "m = parseInt(Date.monthNumbers[results[" + currentGroup + "].substring(0, 3)], 10);\n",
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s: "(" + Date.monthNames.join("|") + ")"
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};
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case "M":
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return {
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g: 1,
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c: "m = parseInt(Date.monthNumbers[results[" + currentGroup + "]], 10);\n",
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s: "(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)"
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};
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case "n":
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case "m":
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return {
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g: 1,
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c: "m = parseInt(results[" + currentGroup + "], 10) - 1;\n",
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s: "(\\d{1,2})"
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};
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case "t":
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return {
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g: 0,
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c: null,
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s: "\\d{1,2}"
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};
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case "L":
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return {
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g: 0,
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c: null,
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s: "(?:1|0)"
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};
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case "Y":
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return {
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g: 1,
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c: "y = parseInt(results[" + currentGroup + "], 10);\n",
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s: "(\\d{4})"
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};
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case "y":
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return {
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g: 1,
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c: "var ty = parseInt(results[" + currentGroup + "], 10);\n" + "y = ty > Date.y2kYear ? 1900 + ty : 2000 + ty;\n",
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s: "(\\d{1,2})"
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};
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case "a":
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return {
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g: 1,
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c: "if (results[" + currentGroup + "] == 'am') {\n" + "if (h == 12) { h = 0; }\n" + "} else { if (h < 12) { h += 12; }}",
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s: "(am|pm)"
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};
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case "A":
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return {
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g: 1,
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c: "if (results[" + currentGroup + "] == 'AM') {\n" + "if (h == 12) { h = 0; }\n" + "} else { if (h < 12) { h += 12; }}",
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s: "(AM|PM)"
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};
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case "g":
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case "G":
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case "h":
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case "H":
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return {
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g: 1,
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c: "h = parseInt(results[" + currentGroup + "], 10);\n",
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s: "(\\d{1,2})"
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};
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case "i":
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return {
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g: 1,
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c: "i = parseInt(results[" + currentGroup + "], 10);\n",
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s: "(\\d{2})"
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};
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case "s":
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return {
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g: 1,
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c: "s = parseInt(results[" + currentGroup + "], 10);\n",
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s: "(\\d{2})"
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};
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case "O":
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return {
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g: 0,
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c: null,
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s: "[+-]\\d{4}"
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};
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case "T":
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return {
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g: 0,
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c: null,
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s: "[A-Z]{3}"
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};
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case "Z":
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return {
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g: 0,
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c: null,
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s: "[+-]\\d{1,5}"
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};
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default:
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return {
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g: 0,
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c: null,
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s: String.escape(character)
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}
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}
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};
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Date.prototype.getTimezone = function () {
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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")
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};
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Date.prototype.getGMTOffset = function () {
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return (this.getTimezoneOffset() > 0 ? "-" : "+") + String.leftPad(Math.floor(Math.abs(this.getTimezoneOffset()) / 60), 2, "0") + String.leftPad(Math.abs(this.getTimezoneOffset()) % 60, 2, "0")
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};
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Date.prototype.getDayOfYear = function () {
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var num = 0;
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Date.daysInMonth[1] = this.isLeapYear() ? 29 : 28;
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for (var i = 0; i < this.getMonth(); ++i) {
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num += Date.daysInMonth[i]
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}
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return num + this.getDate() - 1
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};
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Date.prototype.getWeekOfYear = function () {
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var now = this.getDayOfYear() + (4 - this.getDay());
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var jan1 = new Date(this.getFullYear(), 0, 1);
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var then = (7 - jan1.getDay() + 4);
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document.write(then);
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return String.leftPad(((now - then) / 7) + 1, 2, "0")
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};
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Date.prototype.isLeapYear = function () {
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var year = this.getFullYear();
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return ((year & 3) == 0 && (year % 100 || (year % 400 == 0 && year)))
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};
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Date.prototype.getFirstDayOfMonth = function () {
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var day = (this.getDay() - (this.getDate() - 1)) % 7;
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return (day < 0) ? (day + 7) : day
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};
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Date.prototype.getLastDayOfMonth = function () {
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var day = (this.getDay() + (Date.daysInMonth[this.getMonth()] - this.getDate())) % 7;
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return (day < 0) ? (day + 7) : day
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};
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Date.prototype.getDaysInMonth = function () {
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Date.daysInMonth[1] = this.isLeapYear() ? 29 : 28;
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return Date.daysInMonth[this.getMonth()]
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};
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Date.prototype.getSuffix = function () {
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switch (this.getDate()) {
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case 1:
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case 21:
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case 31:
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return "st";
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case 2:
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case 22:
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return "nd";
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case 3:
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case 23:
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return "rd";
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default:
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return "th"
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}
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};
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String.escape = function (string) {
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return string.replace(/('|\\)/g, "\\$1")
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};
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String.leftPad = function (val, size, ch) {
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var result = new String(val);
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if (ch == null) {
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ch = " "
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}
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while (result.length < size) {
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result = ch + result
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}
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return result
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};
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Date.daysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
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Date.monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
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Date.dayNames = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
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Date.y2kYear = 50;
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Date.monthNumbers = {
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Jan: 0,
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Feb: 1,
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Mar: 2,
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Apr: 3,
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May: 4,
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Jun: 5,
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Jul: 6,
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Aug: 7,
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Sep: 8,
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Oct: 9,
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Nov: 10,
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Dec: 11
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};
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Date.patterns = {
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ISO8601LongPattern: "Y-m-d H:i:s",
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ISO8601ShortPattern: "Y-m-d",
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ShortDatePattern: "n/j/Y",
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LongDatePattern: "l, F d, Y",
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FullDateTimePattern: "l, F d, Y g:i:s A",
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MonthDayPattern: "F d",
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ShortTimePattern: "g:i A",
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LongTimePattern: "g:i:s A",
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SortableDateTimePattern: "Y-m-d\\TH:i:s",
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UniversalSortableDateTimePattern: "Y-m-d H:i:sO",
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YearMonthPattern: "F, Y"
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}; |