Add single-character toUpper/toLower/toFold to tango.text.Unicode

there's this problem where the upper- or lower-case of a character can actually be an array of them, instead of just one. So there's still that to deal with ...

Ooh, scary. Course, dchar > dchar isn't an issue. But maybe for the others, you could pass in a wchar[2] or char[4] and it'd return a slice.

for uppercase of a single dchar, the result can be multiple dchars. Weird, I know :)

ping Peter ... hope the ticket notification is working again

Replying to kris: Unicode has actually two kinds of mapping the "complete" and the "simple" I could add methods for simple mapping, too.

Then a

   dchar toUpper(dchar ch);

would be possible.

I'll look into it.

I will add simpleToUpper simpleToLower and simpleToFold functions that use the simple Unicode Mapping that doesn't change the size.

I'll try to fix it in time for the 99.4 release. Although I cant promise