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-/*
- * Date prototype extensions. Doesn't depend on any
- * other code. Doens't overwrite existing methods.
- *
- * Adds dayNames, abbrDayNames, monthNames and abbrMonthNames static properties and isLeapYear,
- * isWeekend, isWeekDay, getDaysInMonth, getDayName, getMonthName, getDayOfYear, getWeekOfYear,
- * setDayOfYear, addYears, addMonths, addDays, addHours, addMinutes, addSeconds methods
- *
- * Copyright (c) 2006 Jörn Zaefferer and Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
- *
- * Additional methods and properties added by Kelvin Luck: firstDayOfWeek, dateFormat, zeroTime, asString, fromString -
- * I've added my name to these methods so you know who to blame if they are broken!
- *
- * Dual licensed under the MIT and GPL licenses:
- * http://www.opensource.org/licenses/mit-license.php
- * http://www.gnu.org/licenses/gpl.html
- *
- */
-
-/**
- * An Array of day names starting with Sunday.
- *
- * @example dayNames[0]
- * @result 'Sunday'
- *
- * @name dayNames
- * @type Array
- * @cat Plugins/Methods/Date
- */
-Date.dayNames = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
-
-/**
- * An Array of abbreviated day names starting with Sun.
- *
- * @example abbrDayNames[0]
- * @result 'Sun'
- *
- * @name abbrDayNames
- * @type Array
- * @cat Plugins/Methods/Date
- */
-Date.abbrDayNames = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
-
-/**
- * An Array of month names starting with Janurary.
- *
- * @example monthNames[0]
- * @result 'January'
- *
- * @name monthNames
- * @type Array
- * @cat Plugins/Methods/Date
- */
-Date.monthNames = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
-
-/**
- * An Array of abbreviated month names starting with Jan.
- *
- * @example abbrMonthNames[0]
- * @result 'Jan'
- *
- * @name monthNames
- * @type Array
- * @cat Plugins/Methods/Date
- */
-Date.abbrMonthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
-
-/**
- * The first day of the week for this locale.
- *
- * @name firstDayOfWeek
- * @type Number
- * @cat Plugins/Methods/Date
- * @author Kelvin Luck
- */
-Date.firstDayOfWeek = 1;
-
-/**
- * The format that string dates should be represented as (e.g. 'dd/mm/yyyy' for UK, 'mm/dd/yyyy' for US, 'yyyy-mm-dd' for Unicode etc).
- *
- * @name format
- * @type String
- * @cat Plugins/Methods/Date
- * @author Kelvin Luck
- */
-Date.format = 'dd/mm/yyyy';
-//Date.format = 'mm/dd/yyyy';
-//Date.format = 'yyyy-mm-dd';
-//Date.format = 'dd mmm yy';
-
-/**
- * The first two numbers in the century to be used when decoding a two digit year. Since a two digit year is ambiguous (and date.setYear
- * only works with numbers < 99 and so doesn't allow you to set years after 2000) we need to use this to disambiguate the two digit year codes.
- *
- * @name format
- * @type String
- * @cat Plugins/Methods/Date
- * @author Kelvin Luck
- */
-Date.fullYearStart = '20';
-
-(function() {
-
- /**
- * Adds a given method under the given name
- * to the Date prototype if it doesn't
- * currently exist.
- *
- * @private
- */
- function add(name, method) {
- if( !Date.prototype[name] ) {
- Date.prototype[name] = method;
- }
- };
-
- /**
- * Checks if the year is a leap year.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.isLeapYear();
- * @result true
- *
- * @name isLeapYear
- * @type Boolean
- * @cat Plugins/Methods/Date
- */
- add("isLeapYear", function() {
- var y = this.getFullYear();
- return (y%4==0 && y%100!=0) || y%400==0;
- });
-
- /**
- * Checks if the day is a weekend day (Sat or Sun).
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.isWeekend();
- * @result false
- *
- * @name isWeekend
- * @type Boolean
- * @cat Plugins/Methods/Date
- */
- add("isWeekend", function() {
- return this.getDay()==0 || this.getDay()==6;
- });
-
- /**
- * Check if the day is a day of the week (Mon-Fri)
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.isWeekDay();
- * @result false
- *
- * @name isWeekDay
- * @type Boolean
- * @cat Plugins/Methods/Date
- */
- add("isWeekDay", function() {
- return !this.isWeekend();
- });
-
- /**
- * Gets the number of days in the month.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.getDaysInMonth();
- * @result 31
- *
- * @name getDaysInMonth
- * @type Number
- * @cat Plugins/Methods/Date
- */
- add("getDaysInMonth", function() {
- return [31,(this.isLeapYear() ? 29:28),31,30,31,30,31,31,30,31,30,31][this.getMonth()];
- });
-
- /**
- * Gets the name of the day.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.getDayName();
- * @result 'Saturday'
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.getDayName(true);
- * @result 'Sat'
- *
- * @param abbreviated Boolean When set to true the name will be abbreviated.
- * @name getDayName
- * @type String
- * @cat Plugins/Methods/Date
- */
- add("getDayName", function(abbreviated) {
- return abbreviated ? Date.abbrDayNames[this.getDay()] : Date.dayNames[this.getDay()];
- });
-
- /**
- * Gets the name of the month.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.getMonthName();
- * @result 'Janurary'
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.getMonthName(true);
- * @result 'Jan'
- *
- * @param abbreviated Boolean When set to true the name will be abbreviated.
- * @name getDayName
- * @type String
- * @cat Plugins/Methods/Date
- */
- add("getMonthName", function(abbreviated) {
- return abbreviated ? Date.abbrMonthNames[this.getMonth()] : Date.monthNames[this.getMonth()];
- });
-
- /**
- * Get the number of the day of the year.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.getDayOfYear();
- * @result 11
- *
- * @name getDayOfYear
- * @type Number
- * @cat Plugins/Methods/Date
- */
- add("getDayOfYear", function() {
- var tmpdtm = new Date("1/1/" + this.getFullYear());
- return Math.floor((this.getTime() - tmpdtm.getTime()) / 86400000);
- });
-
- /**
- * Get the number of the week of the year.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.getWeekOfYear();
- * @result 2
- *
- * @name getWeekOfYear
- * @type Number
- * @cat Plugins/Methods/Date
- */
- add("getWeekOfYear", function() {
- return Math.ceil(this.getDayOfYear() / 7);
- });
-
- /**
- * Set the day of the year.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.setDayOfYear(1);
- * dtm.toString();
- * @result 'Tue Jan 01 2008 00:00:00'
- *
- * @name setDayOfYear
- * @type Date
- * @cat Plugins/Methods/Date
- */
- add("setDayOfYear", function(day) {
- this.setMonth(0);
- this.setDate(day);
- return this;
- });
-
- /**
- * Add a number of years to the date object.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.addYears(1);
- * dtm.toString();
- * @result 'Mon Jan 12 2009 00:00:00'
- *
- * @name addYears
- * @type Date
- * @cat Plugins/Methods/Date
- */
- add("addYears", function(num) {
- this.setFullYear(this.getFullYear() + num);
- return this;
- });
-
- /**
- * Add a number of months to the date object.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.addMonths(1);
- * dtm.toString();
- * @result 'Tue Feb 12 2008 00:00:00'
- *
- * @name addMonths
- * @type Date
- * @cat Plugins/Methods/Date
- */
- add("addMonths", function(num) {
- var tmpdtm = this.getDate();
-
- this.setMonth(this.getMonth() + num);
-
- if (tmpdtm > this.getDate())
- this.addDays(-this.getDate());
-
- return this;
- });
-
- /**
- * Add a number of days to the date object.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.addDays(1);
- * dtm.toString();
- * @result 'Sun Jan 13 2008 00:00:00'
- *
- * @name addDays
- * @type Date
- * @cat Plugins/Methods/Date
- */
- add("addDays", function(num) {
- //this.setDate(this.getDate() + num);
- this.setTime(this.getTime() + (num*86400000) );
- return this;
- });
-
- /**
- * Add a number of hours to the date object.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.addHours(24);
- * dtm.toString();
- * @result 'Sun Jan 13 2008 00:00:00'
- *
- * @name addHours
- * @type Date
- * @cat Plugins/Methods/Date
- */
- add("addHours", function(num) {
- this.setHours(this.getHours() + num);
- return this;
- });
-
- /**
- * Add a number of minutes to the date object.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.addMinutes(60);
- * dtm.toString();
- * @result 'Sat Jan 12 2008 01:00:00'
- *
- * @name addMinutes
- * @type Date
- * @cat Plugins/Methods/Date
- */
- add("addMinutes", function(num) {
- this.setMinutes(this.getMinutes() + num);
- return this;
- });
-
- /**
- * Add a number of seconds to the date object.
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.addSeconds(60);
- * dtm.toString();
- * @result 'Sat Jan 12 2008 00:01:00'
- *
- * @name addSeconds
- * @type Date
- * @cat Plugins/Methods/Date
- */
- add("addSeconds", function(num) {
- this.setSeconds(this.getSeconds() + num);
- return this;
- });
-
- /**
- * Sets the time component of this Date to zero for cleaner, easier comparison of dates where time is not relevant.
- *
- * @example var dtm = new Date();
- * dtm.zeroTime();
- * dtm.toString();
- * @result 'Sat Jan 12 2008 00:01:00'
- *
- * @name zeroTime
- * @type Date
- * @cat Plugins/Methods/Date
- * @author Kelvin Luck
- */
- add("zeroTime", function() {
- this.setMilliseconds(0);
- this.setSeconds(0);
- this.setMinutes(0);
- this.setHours(0);
- return this;
- });
-
- /**
- * Returns a string representation of the date object according to Date.format.
- * (Date.toString may be used in other places so I purposefully didn't overwrite it)
- *
- * @example var dtm = new Date("01/12/2008");
- * dtm.asString();
- * @result '12/01/2008' // (where Date.format == 'dd/mm/yyyy'
- *
- * @name asString
- * @type Date
- * @cat Plugins/Methods/Date
- * @author Kelvin Luck
- */
- add("asString", function(format) {
- var r = format || Date.format;
- if (r.split('mm').length>1) { // ugly workaround to make sure we don't replace the m's in e.g. noveMber
- r = r.split('mmmm').join(this.getMonthName(false))
- .split('mmm').join(this.getMonthName(true))
- .split('mm').join(_zeroPad(this.getMonth()+1))
- } else {
- r = r.split('m').join(this.getMonth()+1);
- }
- r = r.split('yyyy').join(this.getFullYear())
- .split('yy').join((this.getFullYear() + '').substring(2))
- .split('dd').join(_zeroPad(this.getDate()))
- .split('d').join(this.getDate());
- return r;
- });
-
- /**
- * Returns a new date object created from the passed String according to Date.format or false if the attempt to do this results in an invalid date object
- * (We can't simple use Date.parse as it's not aware of locale and I chose not to overwrite it incase it's functionality is being relied on elsewhere)
- *
- * @example var dtm = Date.fromString("12/01/2008");
- * dtm.toString();
- * @result 'Sat Jan 12 2008 00:00:00' // (where Date.format == 'dd/mm/yyyy'
- *
- * @name fromString
- * @type Date
- * @cat Plugins/Methods/Date
- * @author Kelvin Luck
- */
- Date.fromString = function(s)
- {
- var f = Date.format;
-
- var d = new Date('01/01/1970');
-
- if (s == '') return d;
-
- s = s.toLowerCase();
- var matcher = '';
- var order = [];
- var r = /(dd?d?|mm?m?|yy?yy?)+([^(m|d|y)])?/g;
- var results;
- while ((results = r.exec(f)) != null)
- {
- switch (results[1]) {
- case 'd':
- case 'dd':
- case 'm':
- case 'mm':
- case 'yy':
- case 'yyyy':
- matcher += '(\\d+\\d?\\d?\\d?)+';
- order.push(results[1].substr(0, 1));
- break;
- case 'mmm':
- matcher += '([a-z]{3})';
- order.push('M');
- break;
- }
- if (results[2]) {
- matcher += results[2];
- }
-
- }
- var dm = new RegExp(matcher);
- var result = s.match(dm);
- for (var i=0; i<order.length; i++) {
- var res = result[i+1];
- switch(order[i]) {
- case 'd':
- d.setDate(res);
- break;
- case 'm':
- d.setMonth(Number(res)-1);
- break;
- case 'M':
- for (var j=0; j<Date.abbrMonthNames.length; j++) {
- if (Date.abbrMonthNames[j].toLowerCase() == res) break;
- }
- d.setMonth(j);
- break;
- case 'y':
- d.setYear(res);
- break;
- }
- }
-
- return d;
- };
-
- // utility method
- var _zeroPad = function(num) {
- var s = '0'+num;
- return s.substring(s.length-2)
- //return ('0'+num).substring(-2); // doesn't work on IE :(
- };
-
-})(); \ No newline at end of file
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