Re: combining chars issue

[Emanuele Giaquinta]

On Thu, Jun 26, 2008 at 05:07:11PM +0900, Kenichi Handa wrote:

> > with latest cvs combining chars are not handled properly in emacs -Q -nw.
> > It seems emacs does not write the combining chars at all on stdout, so
> > they are not displayed.
> > Attached is an utf-8 encoded file that should exhibit the problem and a
> > typescript of emacs $file. As you can see from the typescript, emacs
> > writes U+39b but not U+300. However, what-cursor-position reports U+300
> > in the cell next to the U+39b one, so it seems only a display issue.
> 
> I've just installed a fix.
> 
> > The problem seems to be in term.c:append_glyph, which does not append
> > any glyph when it->pixel_width == 0.
> > Does the attached patch make sense?
> 
> No.  The sequence of base character and the following
> combining characters must be composed to one grapheme
> cluster to provide a reasonable cursor movement.  The
> problem was that auto-composition-mode didn't handle the
> case of terminal display.

Ok I see, thank you.