Uwe> I am writing so to speak as a mediator between the maintainer Uwe> of the LyX program and the xemacs maintainers. Uwe> 1. LyX is written in C++ (I don't know any details) and now Uwe> the maintainer is looking for an extension language Uwe> available as a library! I think that `Guile' might be a good choice; they have it in mind to make it be Emacs lisp compatible, it's a modern Scheme, it's got _threads_, _objects_, _modules_, and is a _library_ made for embedding. There is a partly working(?) compiler for it that produces human readable C. It can perform dynamic linking to .so library code. The .so can define a module namespace of its own. You can find it via anon CVS, http, and ftp. <URL:http://www.red-bean.com/guile/> Please help it evolve! `siod' has a way to dump a heap image you can put a she-bang line on and run; Guile doesn't have that... There's a `tguile' (guile undump or some such) that will dump, like emacs does. I've had it working before; it improves start up time. It would be nice if it could save state to a "band" like MIT-Scheme does, without exiting, so you could have persistant state.