On Wednesday 09 Mar 2011 17:59:48 Waldek Hebisch wrote:
> Just now using sbcl based FriCAS you can do:
>
> 1) start FriCAS in Unicode setting, for example:
>
>   (export LC_CTYPE=en_US.UTF-8; fricas)
>
> Make sure your console is set to UTF-8

Thanks, this all looks very promising. There is so much useful
information specifically about unicode that I have put it together on
a separate page at:
http://axiom-wiki.newsynthesis.org/UnicodeIssues?root=AxiomIssues

and the original page contains a summary of this issue together with
all my other 'wish-list' issues:
http://axiom-wiki.newsynthesis.org/AxiomIssues?root=Axiom%20Problems

I tried this:
new(1, char(8721))$String

and it worked immediately on my OpenSUSE 10.3 computer. I did not need
export LC_CTYPE=en_US.UTF-8 or any changes to the console!

I guess what I need to do is to do some experiments to see if I can
read and write unicode strings to/from the console and files using
various combinations of interpreter and compiled code.

It would be good if you can do some of the easier things before the
next release of FriCAS, then I can do some more experiments after you
release it (I'm assuming the next release may not be far away?).

> In principle we could provide domain(s) which would give access
> to large number of special symbols via names (I am not sure if
> this is really useful).

Presumably (I haven't tried it yet) the compiler could read unicode
characters in string literals provided that the source file is UTF-8.
For inputting unicode into the interpreter via the console are there
any programs already existing that could provided a virtual keyboard
for special character sets? Otherwise I guess unicode characters can
always be entered by their numerical value. If the symbol name are
still required for the various file formats and if their designation
happens to be the same, there may be some benefit in a common table?

Martin Baker

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