[Bug 841947] New: [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947

            Bug ID: 841947
        QA Contact: extras-qa(a)fedoraproject.org
          Severity: unspecified
           Version: rawhide
          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: [te_IN] Add support for Telugu nakaarapollu and repha
                    to Lohit Telugu font
        Regression: ---
      Story Points: ---
    Classification: Fedora
                OS: Unspecified
          Reporter: samjnaa(a)gmail.com
              Type: Bug
     Documentation: ---
          Hardware: Unspecified
        Mount Type: ---
            Status: NEW
         Component: lohit-telugu-fonts
           Product: Fedora

Created attachment 599423
  --> https://bugzilla.redhat.com/attachment.cgi?id=599423&action=edit
Glyphs for Telugu nakaarapollu and repha

Telugu script has special form of vowelless NA called four-pronged
nakaarapollu. Strictly speaking nakaarapollu means nakaara + pollu=virama so
regular form of vowelless-NA న్ is also nakaarapollu but Telugu old grammarian
Brown has specifically called a distinct form as nakaarapollu.

The recommended model for getting Telugu nakaarapollu is NA + ZWJ + VIRAMA.

Please find more details in the document:

https://sites.google.com/site/jamadagni/files/utcsubmissions/11409-telugu...

Likewise Telugu script has old repha form which is not found in common usage in
current Telugu script. A modern-style Telugu font can allow user to select
old-style reph by using the sequence RA + VIRAMA + ZWJ + CONSONANT because the
plain RA + VIRAMA + CONSONANT would be presented as RA with sub-base form of
CONSONANT.

Please find more details in the document:

https://sites.google.com/site/jamadagni/files/utcsubmissions/12017-telugu...

These two documents have been approved by the UTC in the Feb 2012 meeting:

http://www.unicode.org/L2/L2012/12007.htm

<quote>
[130-A15] Action Item for Deborah Anderson, Editorial Committee: Update the
core specification text on Telugu nakaara-pollu based on input in document
L2/11-409. 

[130-A16] Action Item for Deborah Anderson: Incorporate text on Telugu Reph
from L2/12-017 into the Telugu block description.
</quote>

It is requested to:

1) add the glyphs for nakaarapollu and repha to the Lohit Telugu font:

2) add substitution mapping of NA + ZWJ + VIRAMA to the nakaarapollu glyph

3) add requisite OT markups for repha glyph so that a compliant OT system can
recognize the repha glyph and render sequence of RA + VIRAMA + ZWJ + CONS using
that glyph.

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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947



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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947

Pravin Satpute <psatpute(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|19                          |20



--- Comment #3 from Pravin Satpute <psatpute(a)redhat.com&gt; ---
we will do this in Lohit2. Moving to

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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947



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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947

Shriramana Sharma <samjnaa(a)gmail.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|20                          |23



--- Comment #5 from Shriramana Sharma <samjnaa(a)gmail.com&gt; ---
Hello. I note that I had provided the glyphs for the nakaarapollu and reph. I'm
not sure why action is not taken on this bug.

Anyhow, I am sorry to say that the sequence mentioned by me in the bug summary
for nakaarapollu i.e. NA + ZWJ + VIRAMA is not correct and not approved by UTC
-- I apologise for this serious gaffe. As per the very Unicode reference doc
L2/11-409 I had provided (my own) the NA + ZWJ + VIRAMA is theoretically
applicable for the isolate glyph but is not appropriate in running text because
ZWJ + VIRAMA requests C2-conjoining forms. The UTC only approved documenting
this written form as an alternate presentation of vowelless NA when isolate. So
the request about nakaarapollu may be ignored.

However the part about the reph is entirely appropriate and approved by the
UTC. As such, it should be possible to add the requisite OT tags so that
shaping engines can display it when requested by RA + VIRAMA + ZWJ + C.

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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947



--- Comment #6 from Pravin Satpute <psatpute(a)redhat.com&gt; ---
I am still not clear on implementation of Reph. Need to do some
experimentation.

From experience as soon as we use feature Reph, its started get ordering at the
end of syllable. Will try this soon.

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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947



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This message is a reminder that Fedora 23 is nearing its end of life.
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and issuing updates for Fedora 23. 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 EOL if it remains open with a Fedora  'version'
of '23'.

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' 
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Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 23 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947

Fedora End Of Life <jkurik(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|---                         |EOL
        Last Closed|                            |2016-12-20 07:15:52



--- Comment #8 from Fedora End Of Life <jkurik(a)fedoraproject.org&gt; ---
Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
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bug.

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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=841947

Pravin Satpute <psatpute(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|CLOSED                      |ASSIGNED
            Version|23                          |25
         Resolution|EOL                         |---
           Keywords|                            |Reopened



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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.

Thank you for reporting this issue and we are sorry that we were not
able to fix it before Fedora 25 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 this bug is closed as described in the policy above.

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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[Bug 841947] [te_IN] Add support for Telugu nakaarapollu and repha to Lohit Telugu font

https://bugzilla.redhat.com/show_bug.cgi?id=841947

Fedora End Of Life <jkurik(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
         Resolution|---                         |EOL
        Last Closed|2016-12-20 07:15:52         |2017-12-12 05:27:58



--- Comment #10 from Fedora End Of Life <jkurik(a)fedoraproject.org&gt; ---
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.

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