The font seems to have a buggy (too big) GPOS kerning table (it does cause fontforge to hang writing the font). If 'kern' is set to 'yes', I get this error: ...text/tex/texmf-context/tex/context/base/node-inj.lua:62: attempt to index local 'kb' (a nil value) I had to put if..then around that line to suppress the error, may be some checks are needed for such broken fonts. P.S. The font is freely available as adobe reader font pack http://www.adobe.com/products/acrobat/acrrasianfontpack.html Regards, Khaled -- Khaled Hosny Arabic localiser and member of Arabeyes.org team Free font developer
Khaled Hosny wrote:
The font seems to have a buggy (too big) GPOS kerning table (it does cause fontforge to hang writing the font). If 'kern' is set to 'yes', I get this error:
...text/tex/texmf-context/tex/context/base/node-inj.lua:62: attempt to index local 'kb' (a nil value)
I had to put if..then around that line to suppress the error, may be some checks are needed for such broken fonts.
i don't get that error (might be catched already in my version) but indeed the font has weird kerning (maybe the font is not really meant for using but just for rendering in the reader) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On Sun, Apr 05, 2009 at 11:24:36PM +0200, Hans Hagen wrote:
Khaled Hosny wrote:
The font seems to have a buggy (too big) GPOS kerning table (it does cause fontforge to hang writing the font). If 'kern' is set to 'yes', I get this error:
...text/tex/texmf-context/tex/context/base/node-inj.lua:62: attempt to index local 'kb' (a nil value)
I had to put if..then around that line to suppress the error, may be some checks are needed for such broken fonts.
i don't get that error (might be catched already in my version) but indeed the font has weird kerning
OK, I'll try to re-test with the next beta.
(maybe the font is not really meant for using but just for rendering in the reader)
They offer it for sale as well[1], but it might not be the exact font files. [1]http://store1.adobe.com/cfusion/store/html/index.cfm?store=OLS-US&event=displayFontPackage&code=1741 Regards, Khaled -- Khaled Hosny Arabic localiser and member of Arabeyes.org team Free font developer
On Sun, 05 Apr 2009 15:24:36 -0600, Hans Hagen
Khaled Hosny wrote:
The font seems to have a buggy (too big) GPOS kerning table (it does cause fontforge to hang writing the font). If 'kern' is set to 'yes', I get this error: ...text/tex/texmf-context/tex/context/base/node-inj.lua:62: attempt to index local 'kb' (a nil value) I had to put if..then around that line to suppress the error, may be some checks are needed for such broken fonts.
i don't get that error (might be catched already in my version) but indeed the font has weird kerning
The VOLT sources for Adobe Arabic are freely available: http://blogs.adobe.com/typblography/2007/06/adobe_arabic_sa.html Looking at the kerning, it appears at first glance to be contextual single adjustment kerning that's messing things up. Will make some test files this week <sigh>. Basically, Single Adjustment uses the advance width parameter alone, with dx/dy=0. This should move the right sidebearing of an initial arabic char to the right while leaving the left one alone. In pair adjustment Arabic kerning generally sets dx=c=width. mkiv supports the latter but not the former. I'll continue this discussion with Hans off list. It's a weird font -- all due respect to Tim Halloway the designer *** -- but very complete in many ways. A good test case for mkiv. Best wishes Idris *** Arabic Palatino by Zapf looks really weird too. -- Professor Idris Samawi Hamid, Editor-in-Chief International Journal of Shi`i Studies Department of Philosophy Colorado State University Fort Collins, CO 80523
participants (3)
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Hans Hagen -
Idris Samawi Hamid ادريس سماوي ح امد -
Khaled Hosny