Bug 159978

Summary: Libre Office automatically choosing inappropriate font and language settings for Ahom script text
Product: LibreOffice Reporter: Stephen Morey <moreystephen>
Component: LibreOfficeAssignee: Not Assigned <libreoffice-bugs>
Status: UNCONFIRMED ---    
Severity: normal    
Priority: medium    
Version: 7.6.3.2 release   
Hardware: All   
OS: All   
Whiteboard: QA:needsComment
Crash report or crash signature: Regression By:
Attachments: Screen shots demonstrating the fonts and language selection
Additional information about Libre Office automatically selecting the wrong font

Description Stephen Morey 2024-03-01 06:13:11 UTC 
Created attachment 192885 [details]
Screen shots demonstrating the fonts and language selection

When typing a section of text using the Tai Ahom keyboard (https://keyman.com/keyboards/ahom_star) AND having first selected the Noto Serif Ahom Unicode font, Libre Office automatically assigns the language of this text as per the first screen shot in the appended Libre Office Screen Shots.odt.

In time, we will want Tai Ahom to be separately listed as its own language as Tai Ahom is no more similar to Hindi than it is to English; Hindi has been chosen as a default, presumably because Tai Ahom is used in India.

A bigger problem is when a user does not select the Noto Serif Ahom Unicode font. In this case, the keyboard will access most of the Ahom font, but with the font automatically setting to Lucida Sans (shown in Screen Shot 2). When typing some Ahom letters, such as U+11720 and U+11721, the font automatically changes to  Liberation Serif and those letters do not implement. This is demonstrated in Screen Shot 3
Comment 1 Stephen Morey 2024-03-10 23:52:47 UTC 
Another example of the automatic selection of the Lucida Sans font and Hindi language was when I copied a piece of text that had been written in the Noto Serif Myanmar font, using the 'Variant Selectors' (U+FE00 VARIATION SELECTOR-1 (VS01))
Comment 2 Stephen Morey 2024-03-26 09:42:56 UTC 
Created attachment 193310 [details]
Additional information about Libre Office automatically selecting the wrong font