Talk:Idiomatically determine all the lowercase and uppercase letters

This task needs clarification: is the distinction between lower case and upper case meant to represent a language feature, or is it meant to be a property of the character set? --Rdm (talk) 04:40, 28 April 2015 (UTC)

If I understand your meaning, the determination of what is a valid (legal) upper or lower case letter (character, ... not a glyph) would represent a language feature, as it is the computer programming language that determines what is (and is not) a valid upper or lower case letter for that language. -- Gerard Schildberger (talk) 23:34, 1 May 2015 (UTC)

So, for example, if the the language itself is limited to ascii, but it supports unicode as a data type (but only provides lower/upper case mappings for the ascii subset of unicode - anything beyond that is the programmer's responsibility), for this task we would only be interested in the ascii characters? --Rdm (talk) 23:57, 1 May 2015 (UTC)

No, not strictly so.   If the computer programming language is restrictive to ASCII, then I think the answer to your question would be/could be a qualified   yes.   I'm not aware of any computer programming languages that are restricted to ASCII, but I'm only familiar with some major legacy languages and a handful of others.   Could you enlighten me with some computer programming languages that are restrictive to ASCII?   By restricted, I mean restricted, not limited to, as possibly not yet written/implemented. -- Gerard Schildberger (talk) 05:44, 2 May 2015 (UTC)