Re: NSLog does only ASCII or UTF-8! Was: Unicode and GNUstep (more info)

[Richard Frith-Macdonald]

On Saturday, May 11, 2002, at 06:33 PM, Pascal Bourguignon wrote:

> > > > cat delivers the same result. I then changed the encoding in the
> > > > preferences of Terminal.app to MacOS Roman and retried. cat and pico
> > > > did
> > > > now deliver the expected result. So far so good.
> > >
> > > A good move.  If you're going to work only with  the terminal and from
> > > Macintosh, that is.
> >
> > Ok, Terminal.app is set to "MacOS Roman". I have rewritten my program 
> > to
> > just do
> >
> >         NSLog(@"Höschler");
> >
> >
> > > But if, like  it seems, you have Macintosh  encoded files and sources,
> > > then you will need to use:
> > >
> > > export GNUSTEP_STRING_ENCODING=NSMacOSRomanStringEncoding
> > > ./FBTest.app/FBTest
> >
> > Here is somethinh i do not understand now.
> >
> > bash-2.03$ export GNUSTEP_STRING_ENCODING=NSMacOSRomanStringEncoding
> > bash-2.03$ ./FBTest
> > May 11 17:00:34 FBTest[14036] H¬öschler
>
> Somewhat  better isn't  it.  Now,  it  seems that  NSLog only  outputs
> UTF-8, hence the 195 escape code before the 246 translated by Terminal
> to a Macintosh ö.

Nope.  NSLog uses the default encoding normally, and only resorts to utf8
if the string being logged cannot be represented using the default 
encoding.

> > bash-2.03$ export GNUSTEP_STRING_ENCODING=
>
> Use:
>
>     unset  GNUSTEP_STRING_ENCODING
>
> to remove an environment variable in bash.
>
>
> > bash-2.03$ ./FBTest
> > WARNING:  - encoding not supported.
> > NSISOLatin1StringEncoding set as default.
> > May 11 17:02:10 FBTest[14039] Höschler
> >
> > I have expected to get "Höschler" while the encoding is set to
> > NSMacOSRomanStringEncoding. However, I get H¬öschler instead. When I
> > reset the encoding to its default I get Höschler. Weird!
>
> Well, it seems that NSLog does not honor the  GNUSTEP_STRING_ENCODING.

Actually, it does.

> Effectively, we find:
>
>  --------------------------------------------------------------------
>  static void
>  _NSLog_standard_printf_handler (NSString* message)
>  {
>    NSData       *d;
>    const char   *buf;
>    unsigned     len;
>
>    d = [message dataUsingEncoding: NSASCIIStringEncoding
>          allowLossyConversion: NO];
>    if (d == nil)
>      {
>        d = [message dataUsingEncoding: NSUTF8StringEncoding
>          allowLossyConversion: NO];
>      }
>  --------------------------------------------------------------------
>
> in NSLog.m.


That's an old version of GNUstep ... Andreas said he was using the latest
version from CVS, and the current version of NSLog() uses the default 
encoding.