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Sender: Mailing list for the LaTeX3 project <[log in to unmask]>
Date: Fri, 25 Oct 2013 15:17:53 -0700
Reply-To: Mailing list for the LaTeX3 project <[log in to unmask]>
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From: Donald Arseneau <[log in to unmask]>
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On Fri, October 25, 2013 2:16 pm, Joseph Wright wrote:
> On 25/10/2013 22:14, Michiel Helvensteijn wrote:
>> On Fri, Oct 25, 2013 at 9:59 PM, Joseph Wright
>> <[log in to unmask]> wrote:
>>>  - You want to make 'weird' chars (catcode tricks with \lowercase
>>>    primitive)
>> A thought:
>> Conceptually speaking, upper-case and lower-case are concepts that
>> have to do with letters, and making weird chars is a completely
>> unrelated feature. The \lowercase trick is what I would call an
>> implementation detail. With expl3 you have the opportunity to separate
>> the two concepts in the public interface. Give the weird-char
>> technique a different name... such as "bijective conversion".
> We're pretty sure 'case' doesn't come into the name: our working idea is
> "\tl_transform:nn" or similar, but no decision has to-date been reached.
> (Prod Will, Frank, Bruno, ...!)

"map" ("mapping") is the usual term.

Donald Arseneau, TRIUMF CMMS, [log in to unmask]