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Re: Arabic support

From: Eli Zaretskii
Subject: Re: Arabic support
Date: Fri, 03 Sep 2010 12:16:44 +0300

> From: Kenichi Handa <address@hidden>
> Cc: address@hidden, address@hidden, address@hidden
> Date: Fri, 03 Sep 2010 10:00:02 +0900
> > If so, auto-composition-mode cannot be turned off for scripts that
> > need this kind of "grouped shaping" without degrading the presentation
> > of these scripts to the point of illegibility?
> Yes.  And auto-composition-mode cannot be turned off for any
> scripts that it is not enough to display glyphs
> corresponding to characters; they are all Indics, some East
> Asians, Arabic, Hebrew, etc.

Are you sure Hebrew belongs to this list?  What Hebrew characters need
to be shaped together, but still displayed as separate glyphs (as
opposed to the diacriticals which are composed into the same glyph
with the base character)?

> > The next call is with a 6-character string whose contents is
> >    {0x627, 0x644, 0x633, 0x651, 0x644, 0x627}
> > then a 5-character string {0x627, 0x644, 0x633, 0x651, 0x644}, etc.
> As the lgstring is getting shorter each time, it seems that
> composition fails each time.
> autocmp_chars is mainly called from composition_reseat_it.
> Could you please trace the code after the first call of
> autocmp_chars, and find why Emacs descides that a
> composition fails.

Will do.


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