From: Khaled Hosny <khaledhosny@eglug.org>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Arabic OpenType kerning
Date: Tue, 25 Aug 2009 02:04:11 +0300 [thread overview]
Message-ID: <20090824230411.GA18816@khaled-laptop> (raw)
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Kerning doesn't seem to work with TRT direction, in the attached axample
(using the attached font), enabling kerning with TRT direction inserts
positive kern between first kern pair and nothing between the rest (it
should be negative kern). With TLT direction kerning seem to be fine.
Using \kern primitive seems to work fine too.
Regards,
Khaled
--
Khaled Hosny
Arabic localiser and member of Arabeyes.org team
Free font developer
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\definefontfeature [kacst]
[mode=node,language=dflt,script=arab,
init=yes,medi=yes,fina=yes,isol=yes,
liga=yes,mark=yes,mkmk=yes]
\definefontfeature [kacst-kern][kacst][kern=yes]
\font\nokern=KacstOne.ttf*kacst at 80pt
\font\yeskern=KacstOne.ttf*kacst-kern at 80pt
\starttext
\startTEXpage
\nokern\textdir TRT
صرصرصرصر
\stopTEXpage
\startTEXpage
\yeskern\textdir TRT
صرصرصرصر
\stopTEXpage
\startTEXpage
\yeskern
صرصرصرصر
\stopTEXpage
%\showotfcomposition{KacstOne.ttf*nokern}{-1}{صرصرصرصر}
%\showotfcomposition{KacstOne.ttf*yeskern}{-1}{صرصرصرصر}
%\showotfcomposition{KacstOne.ttf*yeskern}{1}{صرصرصرصر}
\stoptext
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next reply other threads:[~2009-08-24 23:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-24 23:04 Khaled Hosny [this message]
2009-08-25 17:52 ` Hans Hagen
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