I have a search and results page that I would like to highlight the keywords that were searched for, in the text of the results. It was suggested that I use TextLine for this, but I am having trouble figuring out how to make it work. I started a simple, compilable dummy application and was hoping someone could give me some tips on how to continue:

<?xml version="1.0" encoding="utf-8"?>
<s:Application
 xmlns:fx="http://ns.adobe.com/mxml/2009"
 xmlns:s="library://ns.adobe.com/flex/spark"
 xmlns:mx="library://ns.adobe.com/flex/mx"
 initialize="initApp();">

 <fx:Script>
  import flash.display.Sprite;
  import flash.text.engine.*;

  private var textLine:TextLine;

  private function initApp():void {

   var normalFormat:ElementFormat = new ElementFormat(null, 12, 0x000000);
   var highlightFormat:ElementFormat = new ElementFormat(null, 14, 0xff0000);

   var textBlock:TextBlock = new TextBlock(new TextElement("This is text that has KEYWORDS. I would like to highlight these KEYWORDS by changing their font color and adding a light yellow background graphic.", normalFormat)); 

   textLine = textBlock.createTextLine();
   textLine.y = 100;

   embeddedFontHolder.addChild(textLine); 
  }
 </fx:Script>

 <mx:UIComponent width="100%" id="embeddedFontHolder" />
</s:Application>

Anyone have any ideas?

Cheers, Baz