/*	Script: string.cnet.js
		These are mootools authored extensions designed to allow prototype.lite libraries run in this environment.

Dependancies:
	 mootools - <Moo.js>, <String.js>, <Array.js>

Author:
	Aaron Newton, <aaron [dot] newton [at] cnet [dot] com>
	

		Class: String
		This extends the <String> prototype.
	*/
String.extend({
/*	Property: stripTags
		Remove all html tags from a string.	*/
	stripTags: function() {
		return this.replace(/<\/?[^>]+>/gi, '');
  },
/*	Property: stripScripts
		Removes all script tags from an HTML string.
	*/
	stripScripts: function() {
		return this.replace(/<script[^>]*?>.*?<\/script>/img, '');
	},
/*	Property: evalScripts
		Executes scripts included in an HTML string.
	*/
	evalScripts: function() {
		var scripts = this.match(/<script[^>]*?>.*?<\/script>/g);
		if(scripts) scripts.each(function(script){
				eval(script.replace(/^<script[^>]*?>/, '').replace(/<\/script>$/, ''));
			});
	},
	replaceAll: function(searchValue, replaceValue, regExOptions) {
		return this.replace(new RegExp(searchValue, $pick(regExOptions,'gi')), replaceValue);
	},
/*	Property: urlEncode
		urlEncodes a string (if it is not already).
		
		Example:
		> "Mondays aren't that fun".urlEncode()
		> > Mondays%20aren%27t%20that%20fun
	*/
	urlEncode: function() {
		if (this.indexOf('%') > -1) return this;
		else return escape(this);
	},

	parseQuery: function() {
		var vars = this.split(/[&;]/);
		var rs = {};
		if (vars.length) vars.each(function(val) {
			var keys = val.split('=');
			if (keys.length && keys.length == 2) rs[encodeURIComponent(keys[0])] = encodeURIComponent(keys[1]);
		});
		return rs;
	},
/*	Property: tidy
		Replaces common special characters with their ASCII counterparts (smart quotes, elipse characters, stuff from MS Word, etc.).
	*/
	tidy: function() {
		var txt = this.toString();
		$each({
			"[\xa0\u2002\u2003\u2009]": " ",
			"\xb7": "*",
			"[\u2018\u2019]": "'",
			"[\u201c\u201d]": '"',
			"\u2026": "...",
			"\u2013": "-",
			"\u2014": "--"
		}, function(value, key){
			txt = txt.replace(new RegExp(key, 'g'), value);
		});
		return txt;
	}
});