With my workaround posted above, you can load the whole text / source at start up and modify the highlightning afterwards.
If you put some more work into it, the highlighter could only change the text "viewable" at the moment.
If you like, I can e-mail you a preview of my current app where I use that technique mentioned in the post before.
If you put some more work into it, the highlighter could only change the text "viewable" at the moment.
If you like, I can e-mail you a preview of my current app where I use that technique mentioned in the post before.