>But, as Hans suggests in his other message, whether such ideas are >practical whilst the current TeX (or any extensions so far considered) >is the underlying language needs further research. This is also a point which I did not mention: For developing such ideas like modules and objects, one needs a very good context. So the best way to approach this subject is really the approach taken: Start to write these names by hand. When one has a good working kernal, one can start to think about abstractions. I then pointed out some snags that may arise down the line, and I indicated what I think is needed to get around them. Hans Aberg * Email: Hans Aberg <mailto:[log in to unmask]> * Home Page: <http://www.matematik.su.se/~haberg/> * AMS member listing: <http://www.ams.org/cml/>