[Fedora-i18n-bugs] [Bug 494158] New: [te_IN] Incorrect rendering of 'ai' matra when dependent vowel sign for 'E' and

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Summary: [te_IN] Incorrect rendering of 'ai' matra when dependent vowel sign for
'E' and

https://bugzilla.redhat.com/show_bug.cgi?id=494158

           Summary: [te_IN] Incorrect rendering of 'ai' matra when
                    dependent vowel sign for 'E' and
           Product: Fedora
           Version: 10
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: medium
          Priority: low
         Component: lohit-fonts
        AssignedTo: rbhalera(a)redhat.com
        ReportedBy: arjunaraoc(a)googlemail.com
         QAContact: extras-qa(a)fedoraproject.org
                CC: petersen(a)redhat.com, rbhalera(a)redhat.com,
                    fedora-fonts-bugs-list(a)redhat.com,
                    fedora-i18n-bugs(a)redhat.com
   Estimated Hours: 0.0
    Classification: Fedora


Description of problem:


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


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

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[Fedora-i18n-bugs] [Bug 494158] [te_IN] Incorrect rendering of 'ai' matra when dependent vowel code point for 'E' and 'AI' length mark code points are used

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comments should be made in the comments box of this bug.


https://bugzilla.redhat.com/show_bug.cgi?id=494158


Arjuna Rao Chavala <arjunaraoc(a)googlemail.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[te_IN] Incorrect rendering |[te_IN] Incorrect rendering
                   |of 'ai' matra when          |of 'ai' matra when
                   |dependent vowel sign for    |dependent vowel code point
                   |'E' and                     |for 'E' and 'AI'
length
                   |                            |mark code points are used




--- Comment #1 from Arjuna Rao Chavala <arjunaraoc(a)googlemail.com&gt;  2009-04-05
01:45:13 EDT ---
Description of problem:
[te_IN] Incorrect rendering of 'ai' matra  when dependent vowel code point for
'E' and 'AI' length mark code points are used.
This problem is severe for telugu consonants Ma and Ya . For other consonants 
also, the full consonant is retained along with the  glyphs, which is not
correct.



Version-Release number of selected component (if applicable):
2.3.8

How reproducible:
Visit  

Steps to Reproduce:
1. Visit Telugu newspapers  with proprietary fonts rendered by Padma Plugin at
http://uni.medhas.org/unicode.php5?file=http%3A%2F%2Fwww.andhrajyothy.com...

2. Look for syllables with 'ai' matra combination like మై
3.observe incorrect rendering as superimposition of individual glyphs.

Actual results:
'ai' matra substituion and  rendering

Expected results:
individual glyphs superimposed which results in incorrect rendering.

Additional info:

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[Fedora-i18n-bugs] [Bug 494158] [te_IN] Incorrect rendering of 'ai' matra when dependent vowel code point for 'E' and 'AI' length mark code points are used

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https://bugzilla.redhat.com/show_bug.cgi?id=494158





--- Comment #2 from Arjuna Rao Chavala <arjunaraoc(a)googlemail.com&gt;  2009-04-05
01:46:38 EDT ---
Created an attachment (id=338202)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=338202)
Showing incorrect 'ai' matra rendering

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[Fedora-i18n-bugs] [Bug 494158] [te_IN] Incorrect rendering of 'ai' matra when dependent vowel code point for 'E' and 'AI' length mark code points are used

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comments should be made in the comments box of this bug.


https://bugzilla.redhat.com/show_bug.cgi?id=494158





--- Comment #3 from Arjuna Rao Chavala <arjunaraoc(a)googlemail.com&gt;  2009-04-05
01:47:15 EDT ---
This problem does not exist with  Pothana2000 font.

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[Fedora-i18n-bugs] [Bug 494158] [te_IN] Incorrect rendering of 'ai' matra when dependent vowel code point for 'E' and 'AI' length mark code points are used

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comments should be made in the comments box of this bug.


https://bugzilla.redhat.com/show_bug.cgi?id=494158


Rahul Bhalerao <rbhalera(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|                            |NOTABUG




--- Comment #4 from Rahul Bhalerao <rbhalera(a)redhat.com&gt;  2009-04-06 07:03:14 EDT
---
The explicit use the length marks is not approved by Unicode, they are used
only for the rendering purpose. The data entered should use the authentic 'ai'
matra character only. 
This is a bug with the data on the given website. 

The reason Pothana tends to give right output is that, it does not have a glyph
for U+25cc, i.e. the dotted circle which is used to notify the invalid
syllable, such as a vowel sign without a consonant. The obvious disadvantage of
not having dotted circle is that, it may allow users to type in wrong sequences
without notifying.

So, from both the rendering and font point of view, its not a bug.

For getting the right and authentic output with universally valid data, please
use the 'AI' Matra character U+0c48, and drop the use if the length mark
U+0c56. The problem should be reported back to the website, if possible.

> From Pothana's point of view, it should include a glyph for U+25cc
> at right 
position to avoid confusion and use of invalid sequences. As I can see, it
has
the glyph, but not at right position. As pothana is still in packaging process
for fedora, the problem can be reported only upstream.

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