Bug 164700 - Implement special applications of "Asian text font" for quotation marks when they are followed by Variation Selectors
Summary: Implement special applications of "Asian text font" for quotation marks when ...
Status: UNCONFIRMED
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
Version:
(earliest affected)
Inherited From OOo
Hardware: All All
: medium enhancement
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: CJK Language-Detection
  Show dependency treegraph
 
Reported: 2025-01-14 07:40 UTC by Volga
Modified: 2025-01-15 16:51 UTC (History)
11 users (show)

See Also:
Crash report or crash signature:


Attachments
Screenshot (57.24 KB, image/png)
2025-01-14 07:42 UTC, Volga
Details

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Description Volga 2025-01-14 07:40:30 UTC
Description:
Unicode 16.0 defined four quotation marks to be reproduced variants by VS01 or VS02, they required VS01 for non-fullwidth form and VS02 for right-justified fullwidth form. As such variation sequences will be mostly used by CJK typefaces, they should have special rules to assign typefaces. 

When they are followed by VS01, they should always rendered with Western text fonts, when they are followed by VS02, they should always rendered with Asian text fonts

Steps to Reproduce:
1. Open attachment 198523 [details]

Actual Results:
The quotation marks does not responded for their variation sequences, just takes the same as they doesn't have VS characters.

Expected Results:
The quotation marks with VS01 or VS02 should be rendered by different typefaces.


Reproducible: Always


User Profile Reset: No

Additional Info:
Version: 25.2.1.0.0+ (X86_64) / LibreOffice Community
Build ID: c0bfaa71397cc77a1f2aa0291ef4ad6b9852547b
CPU threads: 4; OS: Windows 10 X86_64 (10.0 build 19045); UI render: default; VCL: win
Locale: zh-CN (zh_CN); UI: zh-CN
Calc: threaded

Documentation: https://www.unicode.org/charts/PDF/Unicode-16.0/U160-2000.pdf
Comment 1 Volga 2025-01-14 07:42:51 UTC
Created attachment 198524 [details]
Screenshot

Here's what I have seen.