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Date: Sat, 23 Jan 2010 17:45:46 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Please support CP932. (I have problem using subversion with  SJIS)
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On Jan 23 15:51, Andy Koppe wrote:
> On 23 January 2010 15:07, Corinna Vinschen:
> > Ouch.  I understand now.  Standard SJIS is *really* different from
> > Microsoft CP932 in two code points:
> >
> >  CP932 0x5c == U+005E
> >  SJIS  0x5c == U+00A5
> >
> >  CP932 0x7e == U+007E
> >  SJIS  0x7e == U+203E
> 
> Aargh! I wonder what that would do to DOS paths and stuff like ~username.
> 
> > Would it be a valid help for your case if Cygwin's SJIS conversion would
> > convert 0x5c to U+00A5 and 0x7e to 203E, so that the SJIS conversion
> > would be really correct *and* bijective?
> 
> I think that's the correct thing to do, but it'll likely break other
> stuff. Seems SJIS really isn't suited for Unix command line use. All
> the more reason to make EUC-JP the default for "ja_JP" I guess.
> 
> >  To me this sounds like the
> > better solution than adding a CP932 charset identifier.
> 
> I agree. Simply aliasing CP932 to SJIS is wrong, because they are
> quite different character sets. Supporting CP932 as a charset in its
> own right might be worth considering though, especially as that's the
> standard charset on Japanese Cygwin 1.5.

I applied a patch which handles the characters 0x5c and 0cfe differently
if the charset is set to "SJIS", and I applied Nayuta's patch to newlib's
loadlocale to allow "CP932" as charset.  So there will be a choice in
Cygwin 1.7.2.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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