Andrew Gierth <andrew@tao11.riddles.org.uk> writes:
> "Tom" == Tom Lane <tgl@sss.pgh.pa.us> writes:
> Tom> It's not so much intentional as that no one has gotten around to
> Tom> making it work. The difficulty is that the wide-char codes we
> Tom> are using might not match what the <wctype.h> functions expect,
> Tom> and it's unclear what we could do to fix that.
> Couldn't we follow the example of lower(), and convert the string to
> wchar_t using mbstowcs (rather than pg_wchar_t and pg_mb2wchar)?
Possibly. I think we did not have the char2wchar() infrastructure
when the regexp stuff was last gone over, so it might be more practical
to do that now.
regards, tom lane