[XeTeX] Position of kasra when used together with tashdid in Arabic

Meho R. meho_r at yahoo.com
Fri Jul 9 15:03:49 CEST 2010

OK, there's maybe another way (maybe not related directly to XeLaTeX, so I 
apologize for off topic): is there a way to disable certain glyphs in a font 
using (Xe)LaTeX? In the font I'm using: KFGQPC Uthman Taha Naskh 
font: http://fonts.qurancomplex.gov.sa/ there are glyphs buried deep in the file 
(at its end, 65545 and 65550, which, when removed, produced "correctly" 
positioned kasra and shadda, as well as tanween-double kasra and shadda (i.e. 
kasra/double kasra went below the letter). However, although this font is free, 
no modifications are allowed to be done, so I'd rather simply disable those two 
glyphs if possible than removing them from the font using, e.g., fontforge 
(which, btw, returned some errors: wrong direction, missing points at extrema, 
too many points, bad glyph name).

Not to forget, thank you all for your suggestions. I tried them all, for some 
fonts using urdu and/or sindhi solved the problem, for some Vafa's code works 
fine, but this font is different.

From: Vafa Khalighi <vafakh84 at gmail.com>
To: xetex at tug.org
Sent: Fri, July 9, 2010 3:29:31 AM
Subject: Re: [XeTeX] Position of kasra when used together with tashdid in Arabic

I was hoping someone knows of a 
>workaround or a hack which I can use with XeLaTeX to overcome this. Vafa 
> provided a valuable code (thank you!) which works fine for some fonts, but, 
>unfortunately, not for this one :( If anyone has any suggestions, please, let me 
>know. Thanks.

I am not sure what kind of font you have but perhaps that is cursive. In that 
case you can try reducing horizontal spacing between appropriate letters until 
all letters are connected. You should instead, either if the font is 
open-source, change it for your own purpose, or use Khaled's suggestion about 
using luatex instead xetex. 

Best wishes,
Vafa Khalighi

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