Hrvoje Niksic writes: > I'd have to learn Scheme to be able to contribute to such an > XEmacs at all. I don't think so. I think the success or failure of whatever new substrate gets added will depend on the quality of the Emacs-Lisp emulation.

As an example, since I support VM for GNU Emacs and XEmacs, and since the code and comments weigh in at over 25000 lines at this time, and since I only hack on it part-time, it is unlikely that I'm going to be rewriting the whole thing in Scheme or Common Lisp or anything else. Anything that introduces significant semantic changes that require piles of old code to be rewritten is going to be a non-starter. (Leaving aside things like emacs-lisp debuggers, which are bound to be a total loss.) Also if applications run miserably slowly under the emulated Emacs-Lisp then the users will likely vote with their feet and use something else. So I think you'll be able to contribute for quite some time. The last thing we want to do is scare off proven Emacs-Lisp contributors for hypothetical Scheme or Common Lisp contributors.