[RFC] Refresh iswblank and iswspace (was Re: Update wctype functions to Unicode 5.2?)
Tue Feb 16 11:12:00 GMT 2010
On Feb 15 20:25, Howland Craig D (Craig) wrote:
> Both C99 and POSIX say that blank is only space and horizontal tab in
> the C/POSIX locale. So strictly speaking, it would appear that a
> locale check would be needed. (On the other hand, it could possibly be
> considered a mistake in the standards to make such a statement,
> ignoring any definitions provided with the extended character set.)
> This observation, however, is not directly related to the patch under
> consideration, but is pointing to an existing flaw.
Right. I don't worry for now, but we should fix that soon.
I'd suggest to check for the locale being exactly "C" and if so, only
return chars <= 0x7f. Every other locale is undefined and so allows to
report any character in the Unicode range.
Cygwin Project Co-Leader
More information about the Newlib