[XeTeX] BUG: ZWJ ignored? (Re: Fontspec and SBL Hebrew: Possible Bug?)

[Petr Tomasek]

Hello!

Has this bug been solved somehow?


My XeTeX seems to ignore ignore the ZWJ character completely
(at least when script=hebr). I tried to edit some font
and created custom ligatures. If the ligatures where done
with ZWJ, they didn't work. As soon, as I removed the ZWJ
from the ligature definiton, the litagure started to work!

This did happen with 'ccmp', 'dlig' and 'rlig' GSUB tables.

My XeTeX version (on Linux):

xetex --version
XeTeX 3.1415926-2.2-0.9995.2 (Web2C 7.5.6)
kpathsea version 3.5.6dev
Copyright 2009 SIL International and Jonathan Kew.
There is NO warranty.  Redistribution of this software is
covered by the terms of both the XeTeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the XeTeX source.
Primary author of XeTeX: Jonathan Kew.
Compiled with ICU version 4.0 [with modifications for XeTeX]
Compiled with zlib version 1.2.3; using 1.2.3
Compiled with FreeType2 version 2.3.7; using 2.3.7
Compiled with fontconfig version 2.8.0; using 2.8.0
Compiled with libpng version 1.2.15; using 1.2.15
Compiled with xpdf version 3.01

(I would like to try a newer version of XeTeX, possibly from
the SVN, but the last time I tried it, it didn't compile...)

Thank You!

Petr Tomášek

On Mon, Jun 14, 2010 at 01:45:18PM +1000, David Purton wrote:
> On Sun, Jun 13, 2010 at 05:01:18PM +0300, Avi Wollman wrote:
> > looks okay by me.
> > miktex 2.8 (windows 7x64)
> > This is XeTeX, Version 3.1415926-2.2-0.9995.1 (MiKTeX 2.8)
> 
> No - none of those characters are correct in your pdf. It appears that a
> ligature should be used but it is not being used.
> 
> The combination of hataf patah + ZWJ + meteg should resolve to an
> un-mapped glyph ligature. This is not happening. There are a total of
> three ligatures involving meteg which should exhibit this behaviour, but
> they all seem to fail.
> 
> Cheers,
> 
> David
> 
> -- 
> David Purton
> dcpurton at marshwiggle.net
>  

-- 
Petr Tomasek <http://www.etf.cuni.cz/~tomasek>
Jabber: butrus at jabbim.cz

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