[1.7] Proposal: the filename encoding in C locale uses UTF-8 instead of SO/UTF-8

Corinna Vinschen corinna-cygwin@cygwin.com
Tue May 12 20:09:00 GMT 2009


On May 12 15:53, Mark J. Reed wrote:
> On Tue, May 12, 2009 at 3:22 PM, Corinna Vinschen
> >
> > http://cygwin.com/1.7/cygwin-ug-net/using-specialnames.html#pathnames-unusual
> 
> OK, got it.  So Mr. Iwamuro's proposal is that Cygwin ignore the
> locale setting, and just automatically convert the Windows UTF-16
> filenames to UTF-8 (and back) no matter what.

No.  Only if LANG=C.

> That seems rife with possible confusion, though. If I have my codepage
> set to ISO-2022 and paste in a filename, I expect it to be interpreted

Cygwin 1.7 doesn't use the codepage.  It uses what $LANG says.  See
http://cygwin.com/1.7/cygwin-ug-net/setup-locale.html

> as ISO-2022, not as UTF-8 (which will probably fail with an invalid
> encoding sequence).
> 
> OTOH, the SO/UTF-8 hack would seem to bode ill for the portability of,
> say, tar archives created under Cygwin.

The filenames potentially look weird, but they are valid filenames.
If anybody has a better idea how to workaround the problem of UTF-16
chars which don't translate into the current singlebyte or multibyte
charset, feel free to suggest.


Corinna

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

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