Need help to test Pango indic patch which fixes rendering issues of Telugu and Kannada.

[arjuna rao chavala <arjunaraoc googlemail com>]

Hi Friends,

Pango still has   few  rendering issues  with Telugu and Kannada,
notably with Akhand (k+sha and its matra variants processing)
https://bugzilla.gnome.org/show_bug.cgi?id=579398
https://bugzilla.gnome.org/show_bug.cgi?id=604060
These were detected over one year back. Even the fix was developed,
but kept pending as Firefox has rendering problems (for Telugu only)
with the fix. Now Chrome is available as an alternate browser, I would
like to move ahead to submit the patch upstream and pursue for
inclusion in the next release.

I have validated the issue in 1.28. and also verified that the patch
works for Telugu (sure), Kannada and that there is no regression for
Hindi (confident). As the Indic module is common to several  other
languages, I need help to test  the patch for any regression with
other languages also confirm my findings with Kannada and Hindi.

I have  built  Debian packages with the fix  for Ubuntu 10.04 LTS
(libpango1.0-common_1.28.0-0ubuntu3_all.deb,
libpango1.0-0_1.28.0-0ubuntu3_i386.deb and few other libraries)  to
speed up this process and can share the same. In case of  any problem,
you can easily revert to the previous packages by a reinstall through
your package manager. Testing is though visiting few websites of your
language or editing an article using gedit and also checking for any
akhand combinations of your language. I will provide a test file for
each of the language for any Akhand issues.

Please reply to this email against the languages that you can test. I
am looking for at least two people to test for each language.

Devanagari (Hindi) ..Arjun
Bengali
Gurumukhi
Gujarathi
Oriya
Tamil
Telugu ..Arjun
Kannada..Arjun
Malayalam
Sinhala

As Indic language applications on Linux for e-governance and
e-commerce are increasing, we can't afford to continue to live with
issues with Indic rendering on Gnome.

Thanks in advance for your cooperation

Best regards
Arjun

PS: Technical details of the issue: The Akhand needs to be handled
through GSUB at the character cluster level. It is being done in
(1.28.x) after the entire glyph sequence is converted for a word/span
of text. The patch fixes the same.