From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin@cygwin.com, bug-gnulib@gnu.org, bug-coreutils@gnu.org
Subject: Re: 16-bit wchar_t on Windows and Cygwin
Date: Wed, 02 Feb 2011 16:35:00 -0000 [thread overview]
Message-ID: <20110202163516.GI2675@calimero.vinschen.de> (raw)
In-Reply-To: <20110202162801.GH2675@calimero.vinschen.de>
On Feb 2 17:28, Corinna Vinschen wrote:
> On Feb 2 17:02, Bruno Haible wrote:
> > But if you say that the application should convert UTF-16 surrogates
> > to UTF-32 before calling iswalpha: That's certainly a requirement
> > for Cygwin 1.7.x application that want to support the entire Unicode
> > character set. But it's outside of POSIX, and many GNU programs will
> > not want to include this added complexity. Just try to apply this
> > suggestion to gnulib's quotearg.c, then estimate the time someone
> > would need to apply it also to regcomp.c, strftime.c, mbscasestr.c,
> > coreutils/src/wc.c, and so on.
>
> Cygwin's regcomp is taken from FreeBSD and is UTF-16 capable, including
> surrogate handling. It only required two changes in the code.
Btw., I would be sure glad if Cygwin would use a wchar_t of 4 bytes as
well. The problem is that this requires too many changes at once to
work right, and it would introduce a lot of backward compatibility
problems which would have to be handled.
If only the one's who decided that wchar_t in Cygwin should have the
same size as WCHAR_T in the underlying Windows would have thought twice
about the implications...
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
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next prev parent reply other threads:[~2011-02-02 16:35 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <201101310304.42975.bruno@clisp.org>
2011-01-31 19:16 ` Eric Blake
2011-01-31 20:49 ` Corinna Vinschen
2011-02-02 11:29 ` Bruno Haible
2011-02-02 12:15 ` Corinna Vinschen
2011-02-02 12:21 ` Corinna Vinschen
2011-02-02 16:03 ` Bruno Haible
2011-02-02 16:28 ` Corinna Vinschen
2011-02-02 16:35 ` Corinna Vinschen [this message]
2011-02-02 20:28 ` Andy Koppe
2011-02-04 22:46 ` Warren Young
2011-02-02 17:52 ` bug#7948: " Paul Eggert
2011-02-02 18:57 ` Bruno Haible
2011-02-02 20:43 ` Andy Koppe
2011-02-03 12:57 ` Ulf Zibis
2011-02-02 21:24 ` Eric Blake
2011-02-02 21:39 ` Corinna Vinschen
2011-02-02 23:03 ` Bruno Haible
2011-02-02 23:19 ` Eric Blake
2011-02-03 0:13 ` Bruno Haible
2011-02-03 9:42 ` Corinna Vinschen
2011-02-03 10:48 ` Bruno Haible
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