[XeTeX] xetex arabic fonts issue

Khaled Hosny khaledhosny at eglug.org
Sun Jun 27 01:46:50 CEST 2010

On Sat, Jun 26, 2010 at 03:04:05PM -0700, wodzicki at math.berkeley.edu wrote:
> > My guess is that you have an old version of the font installed somewhere.
> > Having to different version of the same font installed is known to cause
> > this kind of issues with xetex, deleting the old version(s) is enough
> > to solve this issue.
> >
> > Regards,
> >  Khaled
> "an old version" should not be understood literally. Two identical copies
> of the exactly same font: one, say, in the system fonts directory, and
> another one in the TeX distribution tree -- will cause this behavior. This
> is a very frustrating and well attested bug in XeTeX (which for some
> reason has been ignored so far by the XeTeX creator and maintainer).

Theoretically, if my previous "analysis" of this issue was correct, two
identical copies should not cause any problems, since both will have
the same glyph IDs. I should have said a different instead of old copy,


 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer

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