Ubuntu
webkit package

  1. Bug #560795
  2. Comment #2

Comment 2 for bug 560795

Revision history for this message
In , Данило Шеган (danilo) wrote :

Created attachment 54046
Serbian and regular cursive forms for some Cyrillic letters

Compiling WebKitGtk with the default freetype backend results in "locl" tables in opentype fonts not being used. Compiling it with the pango backend instead makes it work.

Example HTML that demonstrates the problem is the following: compare rendering in Firefox and Epiphany (when Serbian locale is active on your system, eg. set LC_ALL=sr_RS.UTF-8 in an env where you start firefox/epiphany from):
 <p style="font-style:italic; font-family:serif; font-size: 300%;" lang="sr">бгдпт</p>

To clearly see what differences are expected, you can test it directly with pango tools:
$ pango-view --font="DejaVu Serif Italic 64" --text "бгдпт" --language=sr
$ pango-view --font="DejaVu Serif Italic 64" --text "бгдпт" --language=ru

(output of these attached for reference)

DejaVu Serif is one of the fonts that has such tables for Romanian and Serbian language. On Ubuntu (most likely Debian as well), it's in ttf-dejavu-extras package, and on Fedora I hear it's in dejavu-serif-fonts-2.30. Upstream is http://dejavu-fonts.org

Originally filed as https://bugs.launchpad.net/ubuntu/+source/webkit/+bug/560795 thinking we should just change the default font backend to pango, but Xan told me there are a lot of bugs in the pango layout that it'd be better to fix the freetype backend.