wp/nwyj/.svn/pristine/e3/e33985587b5f1345b43c260fd3ea8b98ce0c737b.svn-base

/*
 * Ext JS Library 2.0 Copyright(c) 2006-2007, Ext JS, LLC. licensing@extjs.com
 * 
 * http://extjs.com/license
 */

/**
 * @class Ext.data.SortTypes
 * @singleton Defines the default sorting (casting?) comparison functions used
 *            when sorting data.
 */
Ext.data.SortTypes = {
	/**
	 * Default sort that does nothing
	 * 
	 * @param {Mixed}
	 *            s The value being converted
	 * @return {Mixed} The comparison value
	 */
	none : function(s) {
		return s;
	},

	/**
	 * The regular expression used to strip tags
	 * 
	 * @type {RegExp}
	 * @property
	 */
	stripTagsRE : /<\/?[^>]+>/gi,

	/**
	 * Strips all HTML tags to sort on text only
	 * 
	 * @param {Mixed}
	 *            s The value being converted
	 * @return {String} The comparison value
	 */
	asText : function(s) {
		return String(s).replace(this.stripTagsRE, "");
	},

	/**
	 * Strips all HTML tags to sort on text only - Case insensitive
	 * 
	 * @param {Mixed}
	 *            s The value being converted
	 * @return {String} The comparison value
	 */
	asUCText : function(s) {
		return String(s).toUpperCase().replace(this.stripTagsRE, "");
	},

	/**
	 * Case insensitive string
	 * 
	 * @param {Mixed}
	 *            s The value being converted
	 * @return {String} The comparison value
	 */
	asUCString : function(s) {
		return String(s).toUpperCase();
	},

	/**
	 * Date sorting
	 * 
	 * @param {Mixed}
	 *            s The value being converted
	 * @return {Number} The comparison value
	 */
	asDate : function(s) {
		if (!s) {
			return 0;
		}
		if (s instanceof Date) {
			return s.getTime();
		}
		return Date.parse(String(s));
	},

	/**
	 * Float sorting
	 * 
	 * @param {Mixed}
	 *            s The value being converted
	 * @return {Float} The comparison value
	 */
	asFloat : function(s) {
		var val = parseFloat(String(s).replace(/,/g, ""));
		if (isNaN(val))
			val = 0;
		return val;
	},

	/**
	 * Integer sorting
	 * 
	 * @param {Mixed}
	 *            s The value being converted
	 * @return {Number} The comparison value
	 */
	asInt : function(s) {
		var val = parseInt(String(s).replace(/,/g, ""));
		if (isNaN(val))
			val = 0;
		return val;
	}
};