Date: Mon, 31 Jul 2023 20:20:26 +0200
To: Bruno Haible <bruno@clisp.org>
Subject: Re: character class "alpha"
Message-ID: <ZMf7aqxU8awRQM4v@calimero.vinschen.de>
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From: Corinna Vinschen via Cygwin <cygwin@cygwin.com>
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Cc: Corinna Vinschen <corinna-cygwin@cygwin.com>, cygwin@cygwin.com
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On Jul 31 19:46, Corinna Vinschen via Cygwin wrote:
> On Jul 31 16:06, Bruno Haible via Cygwin wrote:
> > Corinna Vinschen wrote:
> > > I have a problem with the c32isalpha function.
> > > 
> > > c32isalpha fails for the character U+FF11 FULLWIDTH DIGIT ONE,
> > > because it expects the character to be an alphabetic character.
> > 
> > This is not a big problem. You can see in the test-c32isalpha.c file
> > that this test is disabled for many platforms, in particular glibc.
> 
> Which is interesting, because I actually tried that today on glibc, and
> for iswalpha (0xff11) it returns 1.  So it actually behaves as the
> testcase expects.
> 
> > There's no problem with disabling it on Cygwin as well.
> 
> I'd rather make Cygwin do the same as glibc.

Hmm, there are more of those expressions which are disabled on glibc and
fail on Cygwin, for instance in test-c32iscntrl.c.  Maybe it's actually
the better idea to disable them on Cygwin, too, rather than to change
a working system...


Corinna

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