[Freebangfont-devel] GSUB problems in truetype files

[Deepayan Sarkar]

Hi,

I'm not sure if this is entirely a pfaedit issue, but there seem to be 
problems with GSUB tables in truetype files generated with the latest 
versions of pfaedit (such problems were not there in the 20030313 version).

Take a look at 

http://www.stat.wisc.edu/~deepayan/Bengali/FreeBangTemplate/pfaedit/BanglaTemplate.sfd.gz

The same directory contains ttf files generated from this file with the 
20030313 (debian unstable) and 20030429 (self-compiled) versions of pfaedit. 

The first one works fine. In gedit (pango/freetype) the second one shows the 
normal characters correctly, but no substitutions take place, and gedit gives 
a warning message:

** (gedit:991): WARNING **: Error loading GSUB table 4112

In Yudit, the second one works partially, in the sense that some substitutions 
take place while some don't.

A test file (UTF-8) is available at 

http://www.stat.wisc.edu/~deepayan/Bengali/FreeBangTemplate/juktolist.txt



In case any of this is relevant, 

1. The second .ttf is much larger than the first (same holds for the GSUB 
tables dumped by ttx).

2. Both versions of pfaedit crash when trying to re-read the second truetype 
file (but not the first).


Deepayan