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, ...!) -- Joseph Wright