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

[Meho R.]

Hi,

This issue is bothering me for some time now: when kasra and tashdid are used 
together, kasra gets positioned just below tashdid instead of below the actual 
letter. This is a well-known issue and some workarounds have been made (e.g., 
reversing the order of writing, first kasra, then tashdid). However, I still 
haven't find a proper way to solve this with XeLaTeX. I tried with some custom 
LaTeX commands (\raisebox and similar), but the problem is, if you enter a 
command in the middle of a word, the link between letters is broken (e.g. 
instead of سُيِّرَت one gets سُىِّ رَتْ). Does anyone know if there's a way to 
move kasra below the letter instead of below tashdid only?


      
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tug.org/pipermail/xetex/attachments/20100708/64a6ee39/attachment.html>