Not supported any more.
Subclass of UITextView with syntax highlighting for iOS 5.0, not finished (just sample)
So, I want to say, my old project does not have sense anymore. :)
The last build shared on git hub and everyone can modify it and try to finish, because it still not completed. Still has a problem with word wrap.
Maybe someone will get something new for himself. Because this project used CoreText and CoreGraphics framework.