[Bug 799565] New: Lohit Malayalam font does not have support for 0D4E MALAYALAM LETTER DOT REPH

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Summary: Lohit Malayalam font does not have support for 0D4E MALAYALAM LETTER DOT REPH

https://bugzilla.redhat.com/show_bug.cgi?id=799565

           Summary: Lohit Malayalam font does not have support for 0D4E
                    MALAYALAM LETTER DOT REPH
           Product: Fedora
           Version: 16
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: unspecified
          Priority: unspecified
         Component: lohit-malayalam-fonts
        AssignedTo: psatpute at redhat.com
        ReportedBy: samjnaa at gmail.com
         QAContact: extras-qa at fedoraproject.org
                CC: fonts-bugs at lists.fedoraproject.org,
                    psatpute at redhat.com, i18n-bugs at lists.fedoraproject.org
    Classification: Fedora
      Story Points: ---
              Type: ---
        Regression: ---
        Mount Type: ---
     Documentation: ---


Description of problem:

It was announced
(https://www.redhat.com/archives/lohit-devel-list/2012-February/msg00011.html)
that the latest 2.5.1 version Lohit fonts support latest Unicode 6.0
characters. Especially Malayalam was also mentioned.

However I find that the Lohit Malayalam 2.5.1 release downloadable from
https://fedorahosted.org/releases/l/o/lohit/lohit-malayalam-ttf-2.5.1.tar.gz
does NOT provide support for 0D4E MALAYALAM LETTER DOT REPH.

As this is one of the three Malayalam characters encoded for Unicode 6.0 (see
http://www.unicode.org/Public/UNIDATA/DerivedAge.txt and search for 0D4E) it
should also be supported. 

[The other two characters are provided but 0D3A has a wrong glyph which I have
reported as bug 798870.]

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

2.5.1

Steps to Reproduce:
1. Install Lohit Malayalam 2.5.1 font. 
2. Try to use 0D4E MALAYALAM LETTER DOT REPH

Actual results:

This character is not available.

Expected results:

This character was encoded to support the old Malayalam orthography. As such it
should be made available for full Unicode 6.0 (or 6.1) support.

Additional info:

You might need to do some smart font programming to position the dot reph
correctly. Note that this character is a special rendering character (hence the
dotted box around it in the code chart
http://www.unicode.org/charts/PDF/U0D00.pdf). 

The special rendering is that it should be placed on top of the character
*following* it. See the original proposal bottom of page 3 and top of page 4.

I think the e-Malayalam OTC font
(http://www.aai.uni-hamburg.de/indtib/INDOLIPI/Malayalam.zip) has pre-composed
glyphs using this character on top of other consonants which might help you in
positioning this character. Note that most often it is found with doubled
consonants (i.e. DOT_REPH + GA + VIRAMA + GA etc) so you will have to be able
to position this character above stacked consonant clusters.

I hope this is sufficient feedback for supporting this character which is
important for old Malayalam orthography.

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