I just want to revive this topic...
That code=cadlisp-7 seems to me now very old and IMHO needs some restoration... If you look at newly available programs like Notepad ++, or VLIDE, or BLADE, or Code Extension, or... , they all have very much better built-in tools for displaying colored code samples... Can some of those engines be used in improving that GeShi style... I've simply implemented some functions from Auto/Brics CAD by using (atoms-family) function... Yes it is for Notepad++, but for my eyes, it looks decent (especially with (vl*-xxx) functions)... If it could be used in some sort of a way, here is XML, but I don't know... I am just thinking loud - isn't www web design connected with software freebies and vs versa...
Anyway, this is now revived and so I had that feeling way long bogging my mind for a long time already...
Bye, M.R.