[Bug 1427550] New: Adding additional Glyphs in Tamil

https://bugzilla.redhat.com/show_bug.cgi?id=1427550

Bug ID: 1427550
           Summary: Adding additional Glyphs in Tamil
           Product: Fedora
           Version: rawhide
         Component: lohit-tamil-fonts
          Severity: medium
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail],
                    [e-mail], [e-mail]

Created attachment 1258398
  --> https://bugzilla.redhat.com/attachment.cgi?id=1258398&action=edit
Svarita  Deerga Svarita  Anudatta eg

Description of problem:

This is not a bug, but enhancement request.

Tamil language script is also used for writing other language text such as
Sanskrit, Hindi, Malayalam, Telugu and Kannada in the form of transliteration.
However Tamil script and the associated Unicode range U0B80-U0BFF does not
contain many characters that are available in these other languages - mainly
the Devanagari Extended unicode UA8E0 and Devanagari Vedic

Extentions unicode U1CD0 series.

Some such requests that I have come across in my FB and other groups:

1. How can I include the signs like lines above the letters as shown in the
picture. This is required to show the swaram i.e. high or low pitch of
pronouncing the letter/word as in Sanskrit. This kind of lines are used in
Sanskrit also.

2. I need to type musical notations in Tamil Using MSword processor. To
indicate octave we put a dot on top or bottom of the letter. how to add  ?

--- My answer for above point 2: dot above = anuswara, dot below = nukta, Lohit
Tamil does not contain nukta, but includes anuswara (U+0B82). ---

While its lot easier to juggle around in Linux based systems by switching
between different fonts, its very difficult in MS based applications.

Hence, I am requesting that 9 such frequently used Glyphs be 'added' to the
existing Lohit Tamil font. The existing Glyphs from Lohit-Devanagari.ttf can be
'leveraged' for this, no need to reinvent the wheel.

Replace:

U+0310 COMBINING CANDRABINDU  >>> replace with VEDIC TONE CANDRABINDU /
anunasika U+0901, thats in Devanagari range, to be consistent with all other
scrips.

Add:

Signs:

Visarga U+0903 ( as separate and distinct, in addition to Tamil Visarga U+0B83
)
AVAGRAHA U+093D
CANDRABINDU VIRAMA U+A8F3

Combining signs/marks with Anchoring:

NUKTA U+093C
VEDIC TONE UDATTA / SVARITA U+0951
VEDIC TONE ANUDATTA U+0952
VEDIC TONE PRENKHA U+1CD2
VEDIC TONE DOUBLE/Deerga SVARITA U+1CDA
VEDIC TONE CANDRA U+1CF4

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

How reproducible:

Not a bug, but enhancement request.

Steps to Reproduce:
1.
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Actual results:

Expected results:

Additional info: