Bug 379901 - Libertine produces inappropriate ligatures
Libertine produces inappropriate ligatures
Product: Fedora
Classification: Fedora
Component: linux-libertine-fonts (Show other bugs)
All Linux
low Severity medium
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Assigned To: Frank Arnold
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2007-11-13 08:04 EST by James
Modified: 2007-11-30 17:12 EST (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-11-13 12:03:23 EST
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Regression: ---
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Image displaying inappropriate ligatures (35.23 KB, image/png)
2007-11-13 08:04 EST, James
no flags Details

  None (edit)
Description James 2007-11-13 08:04:19 EST
Description of problem:
Pango's ligature detection is too keen (at least) with the Linux Libertine font.
It picks up things like fi, fl and ffi mid-word, but also spots roman numerals
and "No" as short for "number" when it's not appropriate.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Start Pango-enabled app (e.g., Inkscape, Firefox).
2. Choose Linux Libertine font.
3. Find/type: difficult, UNIX, ASCII, Nobody.
Actual results:
See attached png (from Inkscape).

Expected results:
No ligature detection for UNIX, ASCII and Nobody.
Comment 1 James 2007-11-13 08:04:19 EST
Created attachment 256821 [details]
Image displaying inappropriate ligatures
Comment 2 Ben Laenen 2007-11-13 10:14:55 EST
Pango is just doing what the font requests: make a ligature for those 
sequences.  This is a bug in Libertine, so it should be fixed there.
Comment 3 James 2007-11-13 10:27:02 EST
Understood, component name and description changed accordingly.
Comment 4 Frank Arnold 2007-11-13 11:44:43 EST
Just relayed it to upstream. Roman numbers and "No" seem to be fixed with a more
recent version available in Fedora 8. Unfortunately this version won't build on
Fedora 7 because of an outdated fontforge package.
Comment 5 James 2007-11-13 12:03:23 EST
Confirmed --- fixed in 2.6.9-1.fc8.

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