I want to create a component that will automatically highlight certain
words.  I also hope to add annotations to the margin.  Something like
the editor in an IDE like Eclipse or IntelliJ IDEA.  As a matter of
fact, it is for something very much like an IDE.  I've read through the
Sun tutorials on text components, but it is a bit confusing if I really
want to go the route of using JEditorPane. Also, I'm not sure if I would
want to use an existing Document implementation, or if I should try to
create my own by extending either AbstractDocument or
DefaultStyledDocument, or something else entirely.

Does any one have any wisdom on this matter? Its a personal project,
mostly for learning, so it doesn't have to be professional quality
implementation. However, I'd *like* to make it as professional as
possible :-)

Thanks,
Daniel.