Bug 851950 - Latin ligatures need 'liga' standard ligature lookups
Summary: Latin ligatures need 'liga' standard ligature lookups
Alias: None
Product: Fedora
Classification: Fedora
Component: liberation-fonts
Version: 17
Hardware: All
OS: All
Target Milestone: ---
Assignee: Pravin Satpute
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2012-08-27 06:37 UTC by Deron Meranda
Modified: 2017-06-23 04:32 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-10-05 05:02:25 UTC
Type: Bug

Attachments (Terms of Use)

Description Deron Meranda 2012-08-27 06:37:33 UTC
Description of problem:
Glyphs in the Latin Ligature block (U+FB00 .. U+FB06), such as "fi" and "fl", should have the OpenType 'liga' lookup features defined. That will allow text renderers to automatically apply the ligature glyph.

Additionally, for completeness, the ligature caret horizontal positions should be appropriately set for these glyphs.

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

Additional info:
You may need to solve bug #851790 first.

Also the "fi" (and "ffi" if existing) should exclude dotless-i scripts/languages, e.g., Turkish.

Comment 1 Pravin Satpute 2012-09-13 10:46:03 UTC
Yes, we can enable it.
But i think enabling it will loose metric compatibility with Times New Roman and Arial.

Comment 2 Pravin Satpute 2012-10-05 05:02:25 UTC
closing, please reopen if required.

Comment 3 Krasnaya Ploshchad’ 2017-06-23 04:32:12 UTC
In Windows 10 Times New Roman and Arial does not has 'liga' feature for ff, fi, fl, tz and so on, they using 'dlig' feature instead.

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