[XeTeX] Help with XeTeX/ConTeXT and CTL

Mojca Miklavec mojca.miklavec.lists at gmail.com
Sun Jul 1 23:39:47 CEST 2012

On Sun, Jul 1, 2012 at 8:38 PM, Shriramana Sharma wrote:
> On Sun, Jul 1, 2012 at 11:51 PM, Shriramana Sharma  wrote:
>> I wonder if there is some problem with the Graphite handling SMP code
>> points? While typesetting (using Ctrl+T in TeXWorks) I still get the
>> segfault I reported. I hope you people can reproduce that too.
>> I note that if I comment out the \adinatha line and leave the SMP UTF
>> text in, I get a series of boxes but no segfault, so it is not a
>> problem with SMP text being part of the UTF-8 file but it seems to be
>> a problem with the Graphite rendering trying to handle SMP text
>> (maybe?).
> Of course, you people would have noticed that I have by default
> commented out the line with Brahmi text, which is why it does not
> segfault as I have given it to you. To reproduce the segfault, remove
> the %.
> I also tested with a version of the font with OT tables added:
> https://sites.google.com/site/jamadagni/files/temp/Adinatha%20Tamil%20Brahmi%20gr-and-ot.otf

I tested a few days ago and not with that last link, but on my Mac
(x86_64-darwin) I only get

** WARNING ** Invalid CMap mapping entry. (ignored)
** WARNING ** Unable to read OpenType/TrueType Unicode cmap table.
** WARNING ** Failed to load ToUnicode CMap for font "AdinathaTamilBrahmi"

and it doesn't work either, but at least it doesn't crash.

I downloaded the font from
and used
    \font\myfontbrah = "Adinatha Tamil Brahmi/GR"
It only complains and fails to display any sensible output (it renders
nonsense characters). But I'm not entirely sure if I used the right
font in the first place.

A possibly relevant difference is that Ubuntu's XeTeX is probably
linked against system ICU, while in "original" TeX Live all the
binaries are statically built. Can you try - just for fun - if the
same file also crashes if you install TL 2012 locally from
or with standalone ConTeXt distribution which should give you the same
behaviour? Not that it would solve your problems with fonts, but it
would be at least a hint that something should be fixed in Ubuntu
binaries to prevent the crash.


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