flymis/WebRoot/dojojs/src/date/serialize.js

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/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.date.serialize");

dojo.require("dojo.string.common");

/* ISO 8601 Functions
 *********************/

dojo.date.setIso8601 = function(/*Date*/dateObject, /*String*/formattedString){
	// summary: sets a Date object based on an ISO 8601 formatted string (uses date and time)
	var comps = (formattedString.indexOf("T") == -1) ? formattedString.split(" ") : formattedString.split("T");
	dateObject = dojo.date.setIso8601Date(dateObject, comps[0]);
	if(comps.length == 2){ dateObject = dojo.date.setIso8601Time(dateObject, comps[1]); }
	return dateObject; /* Date or null */
};

dojo.date.fromIso8601 = function(/*String*/formattedString){
	// summary: returns a Date object based on an ISO 8601 formatted string (uses date and time)
	return dojo.date.setIso8601(new Date(0, 0), formattedString);
};

dojo.date.setIso8601Date = function(/*String*/dateObject, /*String*/formattedString){
	// summary: sets a Date object based on an ISO 8601 formatted string (date only)
	var regexp = "^([0-9]{4})((-?([0-9]{2})(-?([0-9]{2}))?)|" +
			"(-?([0-9]{3}))|(-?W([0-9]{2})(-?([1-7]))?))?$";
	var d = formattedString.match(new RegExp(regexp));
	if(!d){
		dojo.debug("invalid date string: " + formattedString);
		return null; // null
	}
	var year = d[1];
	var month = d[4];
	var date = d[6];
	var dayofyear = d[8];
	var week = d[10];
	var dayofweek = d[12] ? d[12] : 1;

	dateObject.setFullYear(year);

	if(dayofyear){
		dateObject.setMonth(0);
		dateObject.setDate(Number(dayofyear));
	}
	else if(week){
		dateObject.setMonth(0);
		dateObject.setDate(1);
		var gd = dateObject.getDay();
		var day =  gd ? gd : 7;
		var offset = Number(dayofweek) + (7 * Number(week));
		
		if(day <= 4){ dateObject.setDate(offset + 1 - day); }