bugFree UCS Outline Fonts - Bugs: bug #64132, U+0486 U+0301 and U+0486 U+0300...

 
 

bug #64132: U+0486 U+0301 and U+0486 U+0300 should render side-by-side

Submitter:  Phil Krylov <philkrylov>
Submitted:  Mon 01 May 2023 12:23:13 PM UTC
   
 
Category:  individual character(s) Severity:  3 - Normal
Item Group:  letter positioning poor Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Release:  * development
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Mon 01 May 2023 12:23:13 PM UTC, original submission:  

Unicode Technical Note #41, section "3.3 Multiple combining marks" has quite detailed description and more diacritic combinations, but U+0486 U+0301 and U+0486 U+0300 are the most widely used combinations having this problem.

An evident solution is adding a Required Ligature in Cyrillic script for every combination. For these two combinations it would not even require adding a separate glyph (as these glyphs already exist in Greek) if only Cyrillic had the same above and below anchor classes as Latin and Greek.

Proposed patch attached.

Phil Krylov <philkrylov>

 

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

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Attached Files
file #54694:  cyrpsilirlig.patch added by philkrylov (11KiB - application/octet-stream - Proposed patch for FreeSerif)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2023-05-01 philkrylov Attached File- Added cyrpsilirlig.patch, #54694

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