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>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/>