bugFree UCS Outline Fonts - Bugs: bug #41892, Malayalam rendering issues

 
 

bug #41892: Malayalam rendering issues

Submitted by:  Baiju M <baijum81>
Submitted on:  Tue 18 Mar 2014 09:08:48 AM UTC  
 
Category: character rangeSeverity: 3 - Normal
Item Group: character substitution issueStatus: Proceeding
Privacy: PublicAssigned to: Steve White <Stevan_White>
Open/Closed: OpenRelease: development

Add a New Comment (Rich MarkupRich Markup):
   

You are not logged in

Please log in, so followups can be emailed to you.

 

Fri 21 Mar 2014 09:23:15 PM UTC, comment #5:

Baiju,

The commit I just made to FreeSerif implements the two conjunct forms you pointed out: sa-rra-rra and na-rra. The first I had implemented before but broken; the second--I'm not sure it was ever implemented properly before.

Thanks!

Steve White <Stevan_White>
Project AdministratorIn charge of this item.
Fri 21 Mar 2014 07:11:01 AM UTC, comment #4:

Baiju,

I just committed changes to FreeSerif regarding the changes to the Unicode standard for zero and one-quarter.

And I see the (two) conjunct formation issues you poined out in your mail, and am working on them.

Again, besides these issues, the font seems to work well in Windows 7. We are still thinking about what to do about the problems in Linux -- we may have to resort to work-arounds.

Steve White <Stevan_White>
Project AdministratorIn charge of this item.
Wed 19 Mar 2014 10:57:07 PM UTC, comment #3:

Hi,

I was unaware of the issue with the zero digit.

I'll send you some proofs off-line for you to check.

Thanks!

Steve White <Stevan_White>
Project AdministratorIn charge of this item.
Wed 19 Mar 2014 08:08:13 PM UTC, comment #2:

Sure, I will try to test as an end user. I don't have much idea about font technology. I have added SMC mailing list in CC here.

Issue #1: Glyph for "Malayalam Digit Zero" U+0D66 should be changed
See these docs for reference:

http://www.unicode.org/review/pr-71.html
http://www.clickeralam.org/Malayalam-Numerals.pdf

Fonts like Rachana & Lohit has changed the glyph as given in the above doc.

Baiju M <baijum81>
Wed 19 Mar 2014 07:19:44 PM UTC, comment #1:

Hi, Baiju,

Part of what you are seeing is due to a Harfbuzz bug, which makes the "reformed" Malayalam script the default for Malayalam. Unfortunately, the SVN version of FreeFont makes a distinction.

Would you like to do a bit of testing for us?

Steve White <Stevan_White>
Project AdministratorIn charge of this item.
Tue 18 Mar 2014 09:08:48 AM UTC, original submission:

I used the latest svn trunk version of FreeSans.sfd and generated TTF files and I found many rendering issues.

I used the test file available here:
https://raw.github.com/smc/fonts/master/tests/tests.txt

I compared this against Lohit & Rachana fonts:
https://fedorahosted.org/lohit/
http://wiki.smc.org.in/Fonts

Please let me know if any other details required.

Baiju M <baijum81>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):
   
   
Comment:
   

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by Stevan_White (Posted a comment)
  • -unavailable- added by baijum81 (Submitted the item)
  • -unavailable- added by baijum81
  •  

    Do you think this task is very important?
    If so, you can click here to add your encouragement to it.
    This task has 0 encouragements so far.

    Only logged-in users can vote.

     

    Please enter the title of George Orwell's famous dystopian book (it's a date):

     

     

    Follow 6 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri 21 Mar 2014 07:11:01 AM UTCStevan_WhiteStatusNeed info=>Proceeding
    Wed 19 Mar 2014 07:20:23 PM UTCStevan_WhiteCategoryoverall font problem=>character range
      Item GroupNone=>character substitution issue
      StatusNone=>Need info
      Assigned toNone=>Stevan_White
    Tue 18 Mar 2014 09:08:48 AM UTCbaijum81Carbon-Copy-=>Added -unavailable-

    Back to the top


    Powered by Savane 3.1-cleanup