[Bug 825115] New: [kn_IN] Lohit Kannada glyphs of consonants with vowel signs -II, -EE, -OO and -AI should be optimized
2:08 a.m.
https://bugzilla.redhat.com/show_bug.cgi?id=825115
Bug ID: 825115
QA Contact: extras-qa(a)fedoraproject.org
Severity: unspecified
Version: 16
Priority: unspecified
CC: fonts-bugs(a)lists.fedoraproject.org,
i18n-bugs(a)lists.fedoraproject.org, psatpute(a)redhat.com
Assignee: psatpute(a)redhat.com
Summary: [kn_IN] Lohit Kannada glyphs of consonants with vowel
signs -II, -EE, -OO and -AI should be optimized
Regression: ---
Story Points: ---
Classification: Fedora
OS: Unspecified
Reporter: samjnaa(a)gmail.com
Type: Bug
Documentation: ---
Hardware: Unspecified
Mount Type: ---
Status: NEW
Component: lohit-kannada-fonts
Product: Fedora
Description of problem:
Currently the Lohit Kannada fonts unnecessarily contain separate glyphs for
consonants with vowel signs -II, -EE, -OO and -AI. These are merely sequences
of other glyphs.
In the case of -II, -EE, -OO the glyphs are the same as those of the
corresponding short vowels plus a separate glyph 0CD5 Kannada Length Mark ೕ
(unlike in Telugu where the length mark ligates with the syllable). Therefore
instead of doing substitutions of:
CONSONANT + VOWEL_SIGN_II/EE/OO --> CONSONANT_VOWELSIGN_II/EE/OO
the optimized way would be to do:
CONSONANT + VOWEL_SIGN_II/EE/OO --> CONSONANT_VOWELSIGN_I/E/O LENGTH_MARK
If this is done, any changes that are reflected on the
CONSONANT_VOWELSIGN_I/E/O glyphs would automatically reflect for the long
vowels as well without additional work being needed. For instance, see my
recent report of bug 825104. If that bug is fixed for short vowels I, E and O,
automatically it would reflect for II, EE and OO also.
As for -AI, it is merely sequence of glyph for -E plus 0CD6 Kannada AI Length
Mark ೖ. So instead of doing substitutions of:
CONSONANT + VOWEL_SIGN_AI --> CONSONANT_VOWELSIGN_AI
the optimized way would be to do:
CONSONANT + VOWEL_SIGN_AI --> CONSONANT_VOWELSIGN_E AI_LENGTH_MARK
with same benefits as above.
Further, when handling combinations of:
CONSONANT1 + VIRAMA + CONSONANT2 + VOWEL_SIGN_II/EE/OO/AU
by separating the length mark as recommended here, the sub-base form of
CONSONANT2 can be placed closer to the base CONSONANT1 which is also
typographically a desirable factor in a good font. The rules would be:
CONSONANT1 + VIRAMA + CONSONANT2 + VOWEL_SIGN_II/EE/OO/AU -->
CONSONANT1_VOWEL_SIGN_I/E/O + SUB_BASE_CONSONANT_2 + (AI_)LENGTH_MARK
Version-Release number of selected component (if applicable):
2.5.1
How reproducible:
Examine the internals of Lohit Kannada font.
Actual results:
Currently there are separate glyphs for consonants with vowel signs -II, -EE,
-OO and -AI unnecessarily. These are merely sequences of other glyphs.
Therefore any change effected on the component glyphs has to be re-done here.
Expected results:
The superfluous glyphs should be removed and the appropriate effect should be
achieved by appropriate smartfont rules as indicated above.
Additional info:
This would also reduce the size of the font. Not an issue on laptops/desktops
but nowadays Lohit fonts are finding their way into smaller screens such as
smartphones, and it would be good to have a trim font with small footprint.
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4:43 a.m.
New subject: [Bug 825115] [RFE] [kn_IN] Lohit Kannada glyphs of consonants with vowel signs -II, -EE, -OO and -AI should be optimized
https://bugzilla.redhat.com/show_bug.cgi?id=825115
Pravin Satpute <psatpute(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[kn_IN] Lohit Kannada |[RFE] [kn_IN] Lohit Kannada
|glyphs of consonants with |glyphs of consonants with
|vowel signs -II, -EE, -OO |vowel signs -II, -EE, -OO
|and -AI should be optimized |and -AI should be optimized
--- Comment #1 from Pravin Satpute <psatpute(a)redhat.com> ---
Yes agree looks very logical. I have not looked into this area. But yes i will
optimize it as much as possible without any regression.
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11:03 a.m.
New subject: [Bug 825115] [RFE] [kn_IN] Lohit Kannada glyphs of consonants with vowel signs -II, -EE, -OO and -AI should be optimized
Product: Fedora
https://bugzilla.redhat.com/show_bug.cgi?id=825115
--- Comment #2 from Fedora End Of Life <endoflife(a)fedoraproject.org> ---
This message is a reminder that Fedora 16 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 16. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora
'version' of '16'.
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version prior to Fedora 16's end of life.
Bug Reporter: Thank you for reporting this issue and we are sorry that
we may not be able to fix it before Fedora 16 is end of life. If you
would still like to see this bug fixed and are able to reproduce it
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12:33 a.m.
New subject: [Bug 825115] [RFE] [kn_IN] Lohit Kannada glyphs of consonants with vowel signs -II, -EE, -OO and -AI should be optimized
Product: Fedora
https://bugzilla.redhat.com/show_bug.cgi?id=825115
Pravin Satpute <psatpute(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|16 |18
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2:36 a.m.
New subject: [Bug 825115] [RFE] [kn_IN] Lohit Kannada glyphs of consonants with vowel signs -II, -EE, -OO and -AI should be optimized
https://bugzilla.redhat.com/show_bug.cgi?id=825115
--- Comment #3 from Fedora End Of Life <endoflife(a)fedoraproject.org> ---
This message is a reminder that Fedora 18 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 18. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora
'version' of '18'.
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version prior to Fedora 18's end of life.
Thank you for reporting this issue and we are sorry that we may not be
able to fix it before Fedora 18 is end of life. If you would still like
to see this bug fixed and are able to reproduce it against a later version
of Fedora, you are encouraged change the 'version' to a later Fedora
version prior to Fedora 18's end of life.
Although we aim to fix as many bugs as possible during every release's
lifetime, sometimes those efforts are overtaken by events. Often a
more recent Fedora release includes newer upstream software that fixes
bugs or makes them obsolete.
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11:01 a.m.
New subject: [Bug 825115] [RFE] [kn_IN] Lohit Kannada glyphs of consonants with vowel signs -II, -EE, -OO and -AI should be optimized
https://bugzilla.redhat.com/show_bug.cgi?id=825115
Shriramana Sharma <samjnaa(a)gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|18 |rawhide
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9:45 p.m.
New subject: [Bug 825115] [RFE] [kn_IN] Lohit Kannada glyphs of consonants with vowel signs -II, -EE, -OO and -AI should be optimized
https://bugzilla.redhat.com/show_bug.cgi?id=825115
--- Comment #4 from Pravin Satpute <psatpute(a)redhat.com> ---
Thanks Shriramana. We are working targeting this improvement in lohit2.
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2:02 a.m.
New subject: [Bug 825115] [RFE] [kn_IN]
Lohit Kannada glyphs of consonants with vowel signs -II, -EE,
-OO and -AI should be optimized
https://bugzilla.redhat.com/show_bug.cgi?id=825115
Pravin Satpute <psatpute(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |CLOSED
Resolution|--- |WONTFIX
Assignee|psatpute(a)redhat.com |petersen(a)redhat.com
Last Closed| |2018-07-23 03:02:17
--- Comment #5 from Pravin Satpute <psatpute(a)redhat.com> ---
There is no plan for Kannada Lohit2 as of now. Closing as a WONTFIX.
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