[XeTeX] XeLaTeX not using language-specific glyphs with Scheherazade 2.x

Lammert, Richard richard.lammert at ctsfw.edu
Mon Oct 7 21:36:31 CEST 2013

Thanks, Khaled. I had wondered about this--which is why I specifically
chose the Graphite renderer in the font selection. (According to the "Font
Features for Scheherazade 2.000" on the SIL web site, both the language
selection and the meem/heh shaping should work in either OpenType or
Graphite. Rohingya is available as a language selection only in
Graphite--but fontspec doesn't recognize the language.)

Is there a reason a hybrid font wouldn't work properly if a specific
rendering technology is chosen? (Specifically selecting the renderer worked
great in solving my small-caps problem.)


On Mon, Oct 7, 2013 at 12:48 PM, Khaled Hosny <khaledhosny at eglug.org> wrote:

> On Sat, Oct 05, 2013 at 04:25:52PM -0400, Lammert, Richard wrote:
> > (Sorry about that empty message with one attachment--clicked the wrong
> > button.)
> >
> > The following example attempts to use language-specific glyphs from
> > Scheherazade, but does not work with Scheherazade 2.0 or 2.01. The
> example
> > *does* work with Scheherazade 1.005 (see attachments
> arabic-test-1.005.pdf
> > and arabic-test-2.01.pdf)
> >
> > However, when I use TypeTuner to produce language-specific fonts for each
> > of the three languages (last three lines of each test file), XeLaTeX
> > properly shows the correct contextual forms. Since XeLaTeX reads the
> glyphs
> > properly from the tuned fonts, it appears to me that the language
> > information is not being interpreted properly in the base font. I am
> using
> > XeLaTeX 0.9999.3, fontspec v. 2.3c, and bidi v14 on an iMac.
> It seems that Scheherazade ≥ 1.900 is a hybrid OpenType/Graphite font,
> so this is the same issue as:
> http://tug.org/pipermail/xetex/2013-June/024530.html
> (This will be fixed in next year’s version of XeTeX, the workaround in
> the above link can be used in the meantime.)
> Regards,
> Khaled
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Rev. Richard A. Lammert           e-mail: richard.lammert at ctsfw.edu
Technical Services Librarian       mail: 6600 N. Clinton St.
Systems Librarian                     Fort Wayne, IN 46825-4916
Walther Library                         phone: 260-452-3148
Concordia Theological Seminary
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