Re: Arabic with LuaTeX vs. XeTeX

["Wolfgang Schuster" <schuster.wolfgang@googlemail.com>]

2008/6/9 Otared Kavian <otared@gmail.com>:
> Dear all,
>
> I just read the thread started by Burak Emir about "Typesetting Arabic
> today", and tried to typeset the sample sent by Idris Samawi Hamid.
> One of the Arabic or Persian fonts that I have and LuaTeX can find is Nadeem
> (working on Mac OS X 10.5.3), but what I get after typesetting is the
> following attached PDF: all the characters are typeset with their isolated
> form. However typestting the same text with XeConTeXt or XeTeX gives a nice
> result.
>
> So my question is, what should I add or subtract from the font features
> parameters to get a correct result?
>
>
>
>
> The source file is as follows:
>
> % engine=luatex
> \starttext
>
> \definefontfeature
>  [test]
>  [analyze=yes,
>  mode=node,
>  language=dflt,
>  script=arab,
>  aalt=yes,
>  init=yes,
>  medi=yes,
>  fina=yes,
>  isol=yes,
>  liga=yes,
>  mset=yes]

What happens with the following setups from Idris.

 \definefontfeature
   [test]
   [mode=node,language=dflt,script=arab,
    init=yes,medi=yes,fina=yes,isol=yes,
    liga=yes,dlig=yes,rlig=yes,clig=yes,
    mark=yes,mkmk=yes,kern=yes,curs=yes]

> \font\TradArabic = Nadeem*test    at 18pt

Can you try Microsofts Arabtype font:
http://groups.msn.com/MicrosoftVOLTuserscommunity/homepage.msnw

> \startbuffer[paragraph]
> الحمدلله حمد معترف بحمده، مغترف من بحار مجده، بلسان
> الثناۤء شاكرا، ولحسن الاۤئه ناشرا؛ الذي خلق الموت والحيوة، والخير
> والشر، والنفع والضر، والسكون والحركة، والأرواح
> والأجسام، والذكر والنسيان.
>
> \blank
>
> اَلْحَمْدُ لِلّٰهِ حَمْدَ مُعْتَرِفٍ بِحَمْدِهٖ، مُغْتَرِفٌ مِنْ بِحَارِ
> مَجْدِهٖ، بِلِسَانِ
> الثَّنَاۤءِ شَاكِرًا، وَلِحُسْنِ اٰلاۤئِهٖ نَاشِرًا؛ اَلَّذِيْ خَلَقَ
> الْمَوْتَ وَالْحَيٰوةَ، وَالْخَيْرَ
> وَالشَّرَّ، وَالنَّفْعَ وَالضَّرَّ، وَالسُّكُوْنَ وَالْحَرَكَةَ،
> وَالْأَرْوَاحَ
> وَالْأَجْسَامَ، وَالذِّكْرَ وَالنِّسْيَانَ.
>
> \stopbuffer
>
> \start
> \TradArabic
> \pardir TRT \textdir TRT
> \getbuffer[paragraph]
> \stop
>
> \stoptext

Wolfgang
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