Re: case-table functions clobbering extra slots

[Richard Stallman]

      So, I think we should maintain
    both downcase and upcase tables in set-case- functions.

Ok.

    And, for that, we need a function to setup an upcase table
    from a downcase table.

Just install that case table and do (upcase ?a).
Won't that do the job?

    In addtion, to specify one-way case conversion
    (e.g. small-letter-final-sigma --up--> capital-letter-sigma)
    we need new functions (for upcase only and for downcase
    only) or an optional arg in set-case-syntax-pair.

I think a new function is a little cleaner here.

    What do you think?  Shall I work on this matter along this
    line?

Please do, and thanks.