Some Arabic ligatures get rendered twice, I think this happens when a
ligature can be divided into subligatures, say ABC ligature where the
font has an AB ligature, in this case A+B+C get rendered as ABC+AB.
See the attached example.
Regards,
Khaled
--
Khaled Hosny
Arabic localizer and member of Arabeyes.org team
\usetypescriptfile[type-arabtype]
\usetypescript[Arabtype]
\ctxlua { fonts.color.trace = true }
\setupcolors[state=start]
\setupbodyfont[Arabtype,28pt]
\setcharactermirroring[1]
\pagedir TRT\bodydir TRT\pardir TRT\textdir TRT
\starttext
كما علبي علبى
\stoptext
\definefontfeature
[fea]
[mode=node,language=dflt,script=arab,
init=yes,medi=yes,fina=yes,isol=yes,
liga=yes,dlig=yes,rlig=yes,tlig=yes,
calt=yes,ccmp=yes,jalt=yes,trep=yes,
mark=yes,mkmk=yes,kern=yes,curs=yes]
\starttypescript [serif] [arabtype]
\definefontsynonym [Arabtype-Light] [name:ArabicTypesetting] [features=fea]
\definefontsynonym [Arabtype-Bold][name:ArabicTypesetting] [features=fea]
\definefontsynonym [Arabtype-Italic] [name:ArabicTypesetting] [features=fea]
\definefontsynonym [Arabtype-Bold-Italic] [name:ArabicTypesetting] [features=fea]
\stoptypescript
\starttypescript [serif] [arabtype]
\usetypescript[serif][fallback]
\definefontsynonym [Serif][Arabtype-Light] [features=fea]
\definefontsynonym [SerifItalic] [Arabtype-Italic][features=fea]
\definefontsynonym [SerifBold][Arabtype-Bold] [features=fea]
\definefontsynonym [SerifBoldItalic] [Arabtype-Bold-Italic] [features=fea]
\stoptypescript
\starttypescript [Arabtype]
\definetypeface [Arabtype] [rm] [serif] [arabtype] [default]
\stoptypescript
test-liga.pdf
Description: Adobe PDF document
signature.asc
Description: Digital signature
___
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___
