Escape special characters contained in the attribute of an XML stream

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var content:String = '<property name="crop" value="" type="com.gnstudio.rikorda.core.model.canvas.vo::Crop" >' +
		  	'<property name="points" value="" type="__AS3__.vec::Vector.<flash.geom::Point>" >' +
			'<property type="__AS3__.vec::Vector.<flash.geom::Point>" >' +
			'<property type="__AS3__.vec::Vector.<flash.geom::Point>" >' +
		  			'<property name="point" value = "" type = "flash.geom::Point">' +
		  					'<property name="x" value="" type="Number" />' +
		  					'<property name="y" value="" type="Number" />' +
		  			'</property>' +
		  	'</property>';
			
			
 trace("CONTENT BEFORE:", content, "\n");

var ltExp:RegExp = new RegExp("\\<", "g");
var gtExp:RegExp = new RegExp("\\>", "g");

var attributeName:String = "type";
var groupName:String = "attribute";

var attributes:RegExp = new RegExp("<(?:[^>\"']|\"[^\"]*\"|'[^']*')+?\\s" + attributeName + "\\s*=\\s*(?P<" + groupName + ">\"[^\"]*\"|'[^']*')(?:[^>\"']|\"[^\"]*\"|'[^']*')*>", "g");

var err:Error;
do { 
	
	try{
		
		var data:String = attributes.exec(content)[groupName];
		var clone:String = data;
		
		var toReplace:Boolean;
		
		if(clone.search(gtExp) > -1){
			
			clone = clone.replace(gtExp, ">");
			toReplace = true;
			
		}
		
		if(clone.search(ltExp) > -1){
			
			clone = clone.replace(ltExp, "<");
			toReplace = true;
			
		}
		
		if(toReplace){
			
			var reg:RegExp = new RegExp("\\" + data, "g");
			content = content.replace(reg, clone);
						
		}		
	
	}catch(error:Error){
		
		err = error
		break;
		
	}
	
	
 } while ( !err);
 
 trace("CONTENT AFTER:", content);