> How about Tex? > It is as old as the internet and you can use vi to read and edit. > You still can use grep to scan all old documents to find something. It is also the only method to always get precisely the same printout, has the best equation typesetting, makes perfectly good diagrams, and the source is pure future-proof ASCII. And there are advanced tools for editing and comparison on all platforms of which I know, for those who desire something a bit stronger than vi and grep. As I have said before, if we decide on TeX instead of XML we solve all the problems. Y(J)S _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf