[Bug 527740] New: [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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Summary: [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE
results in deletion of the chillu also

https://bugzilla.redhat.com/show_bug.cgi?id=527740

           Summary: [ml_IN] Applying Backspace to a chillu conjunct
                    followed by punctuation/SPACE results in deletion of
                    the chillu also
           Product: Fedora
           Version: rawhide
          Platform: All
        OS/Version: Linux
            Status: NEW
          Keywords: i18n
          Severity: medium
          Priority: low
         Component: pango
        AssignedTo: besfahbo(a)redhat.com
        ReportedBy: apeter(a)redhat.com
         QAContact: extras-qa(a)fedoraproject.org
                CC: eng-i18n-bugs(a)redhat.com, besfahbo(a)redhat.com,
                    fedora-fonts-bugs-list(a)redhat.com,
                    smc-discuss(a)googlegroups.com
    Classification: Fedora
    Target Release: ---


Created an attachment (id=363982)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=363982)
Screenshot for chillu conjuncts

Description of problem:
When chillu conjuncts are followed by any punctuation marks like "!",
".", ",",
"'", "?" or SPACE, ie when a word ends with a chillu conjunct, and
followed by
a punctuation mark or a SPACE, using Backspace to delete the punctuation mark
or SPACE results in the deletion of chillu conjunct together with the
punctuation mark/SPACE.

Version-Release number of selected component (if applicable):
pango 1.26.0-1.fc12 i686

How reproducible:
Always

Steps to Reproduce:
1. Open gedit
2. type any of chillu conjunct, eg: 0D28, 0D4D, 200D
OR
type a word ending with chillu conjunct, eg: 0D05, 0D35, 0D28, 0D4D, 200D
3. type any punctuation marks like "!", ".", ",",
"'", "?" or SPACE
4. Press Backspace

Actual results:
When using Backspace after chillu conjunct followed by punctuation mark or
SPACE, instead of deleting punctuation mark or SPACE only, the chillu conjunct
also gets deleted.

Expected results:
When using Backspace after chillu conjunct followed by punctuation mark or
SPACE, only the punctuation mark/SPACE should get deleted.

Additional info:
1. This does not happen when chillu comes in between a word. eg:  നന്‍മ (0D28,
0D28, 0D4D, 200D, 0D2E)
2. This issue is not present in oowriter and kwrite. When above steps are
reproduced, deletions happens in correct order. 
Versions used:
libicu-4.2.1-6.fc12 i686
qt-4.5.2-22.fc12 i686
3. Screenshot attached for chillu conjuncts and eg of words with chillu

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740





--- Comment #1 from Ani Peter <apeter(a)redhat.com&gt;  2009-10-09 04:33:41 EDT ---
 Bug 597812 is the upstream bug for this problem.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740





--- Comment #2 from Ani Peter <apeter(a)redhat.com&gt;  2009-10-09 04:39:21 EDT ---
Sorry could not provide the link on previous comment:
https://bugzilla.gnome.org/show_bug.cgi?id=597812

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

Akira TAGOH <tagoh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tagoh(a)redhat.com
               Flag|                            |needinfo?

--- Comment #6 from Akira TAGOH <tagoh(a)redhat.com&gt; 2011-05-24 08:39:35 EDT ---
Is this issue a known in upstream? otherwise please file a bug upstream. also
good to test on f15 too if this issue still persists.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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Akira TAGOH <tagoh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
               Flag|needinfo?                   |needinfo?(apeter(a)redhat.com
                   |                            |)

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |psatpute(a)redhat.com
            Version|13                          |15

--- Comment #7 from Pravin Satpute <psatpute(a)redhat.com&gt; 2011-06-02 01:36:22 EDT
---
still present in pango-1.28.4-1.fc15.x86_64

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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--- Comment #8 from Bug Zapper <triage(a)lists.fedoraproject.org&gt; 2011-06-02 13:38:08
EDT ---

This message is a reminder that Fedora 13 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 13.  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 '13'.

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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Bug Reporter: Thank you for reporting this issue and we are sorry that 
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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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--- Comment #9 from Akira TAGOH <tagoh(a)redhat.com&gt; 2011-06-13 02:51:07 EDT ---
Hm, I guess this may be a duplicate of Bug#641290 in meaning of not checking
the valid cluster for character break and the backspace behavior in pango.

that may be a good idea to post which combination is supposed to be valid for
them.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

Fedora Admin XMLRPC Client <fedora-admin-xmlrpc(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|behdad(a)fedoraproject.org    |mclasen(a)redhat.com

--- Comment #10 from Fedora Admin XMLRPC Client <fedora-admin-xmlrpc(a)redhat.com&gt;
2012-01-10 10:43:12 EST ---
This package has changed ownership in the Fedora Package Database.  Reassigning
to the new owner of this component.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=527740

Ani Peter <apeter(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|needinfo?(apeter(a)redhat.com |
                   |)                           |

--- Comment #11 from Ani Peter <apeter(a)redhat.com&gt; ---
Tested this reported issue on F17 using pango-1.30.0-1.fc17 and the problem
still exists.

Thanks
Ani

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

Parag <pnemade(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pnemade(a)redhat.com
            Version|15                          |17

--- Comment #12 from Parag <pnemade(a)redhat.com&gt; ---
Thanks Ani. Moving this to f17 version.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

Fedora Admin XMLRPC Client <fedora-admin-xmlrpc(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|mclasen(a)redhat.com          |tagoh(a)redhat.com

--- Comment #13 from Fedora Admin XMLRPC Client <fedora-admin-xmlrpc(a)redhat.com&gt;
---
This package has changed ownership in the Fedora Package Database.  Reassigning
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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

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Package Maintainer: If you wish for this bug to remain open because you
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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

Akira TAGOH <tagoh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |apeter(a)redhat.com
            Version|17                          |19
              Flags|                            |needinfo?(apeter(a)redhat.com
                   |                            |)

--- Comment #15 from Akira TAGOH <tagoh(a)redhat.com&gt; ---
same on f19 even.

So Ani, are you sure you filed this to upstream? otherwise please do that.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

--- Comment #16 from Pravin Satpute <psatpute(a)redhat.com&gt; ---
This is bit more generic bug.

Type any indic script character

"U+0915" + "200D" + "punct or space", it get clustered and
complete sequence
get deleted.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
    External Bug ID|                            |GNOME Desktop 597812

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740



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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=527740

Akira TAGOH <tagoh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|19                          |rawhide



--- Comment #18 from Akira TAGOH <tagoh(a)redhat.com&gt; ---
I guess the root cause might be similar to Bug#500110.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740



--- Comment #19 from Pravin Satpute <psatpute(a)redhat.com&gt; ---
Yes, dependent vowel (characters with dotted circle) getting clubbed with
preceding one.

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[Bug 527740] [ml_IN] Applying Backspace to a chillu conjunct followed by punctuation/ SPACE results in deletion of the chillu also

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https://bugzilla.redhat.com/show_bug.cgi?id=527740

Satyabrata Maitra <smaitra(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
                 CC|                            |smaitra(a)redhat.com
         Resolution|---                         |CURRENTRELEASE
        Last Closed|                            |2016-05-30 02:47:53



--- Comment #21 from Satyabrata Maitra <smaitra(a)redhat.com&gt; ---
This bug tested FIXED in the latest Fedora version - Fedora24.

Test Observation : Chillu conjunts are NOT getting deleted with the example and
steps provided in the bug description. Only punctuation mark or SPACE is
getting deleted with a single BACKSPACE stroke.

Tested Version of the component :
pango-1.39.0-2.fc24

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