bug#15273: 24.3.50; Combining character sequences are displayed weirdly

[Eli Zaretskii]

> From: Jan Djärv <jan.h.d@swipnet.se>
> Date: Sat, 7 Sep 2013 15:44:53 +0200
> Cc: xfq.free@gmail.com,
>  15273@debbugs.gnu.org
> 
> Hello.
> 
> 7 sep 2013 kl. 11:59 skrev Eli Zaretskii <eliz@gnu.org>:
> 
> >> From: Jan Djärv <jan.h.d@swipnet.se>
> >> Date: Sat, 7 Sep 2013 10:54:58 +0200
> >> Cc: xfq.free@gmail.com,
> >> 15273@debbugs.gnu.org
> >> 
> >> Except the larger bug that Emacs does not handle combining characters 
> >> correctly in the general case, i.e. not combining the ! and the triangle 
> >> on X11 and W32 (and Mac port).
> > 
> > Is there any application out there that does combine these 2
> > characters, with any font?  If not, perhaps it's not an Emacs issue
> > after all.
> 
> Yes, the builtin TextEdit application does it.

Does it use the same font?

> > If you mean the incorrect display of the lone u+20e4, then I just
> > installed the STIX fonts (from
> > http://sourceforge.net/projects/stixfonts/files/?source=navbar) on my
> > Windows box, and didn't see any problems as originally reported here.
> > Can you install the latest STIX fonts and try with that on NS?  If the
> > problem persists, then I agree that nsfont.m is probably the culprit.
> 
> The behaviour iis the same with that STIX version as it is with the OSX 
> supplied STIX version.

Then I guess something is indeed wrong with nsfont.m.  Let me know if
you need any information from the w32 code.