Accumulated Feedback on PRI #490

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Date/Time: Sun Jun 09 06:54:59 CDT 2024
ReportID: ID20240609065459
Name: Jules Bertholet
Report Type: Public Review Issue
Opt Subject: 494

The description of the AI Line_Break class claims:

> As updated, the AI line breaking class includes all characters with East 
> Asian Width A that are outside the range U+0000..U+1FFF, plus the following characters:
>
> 24EA      	CIRCLED DIGIT ZERO
> 2780..2793	DINGBAT CIRCLED SANS-SERIF DIGIT ONE..DINGBAT NEGATIVE CIRCLED SANS-SERIF NUMBER TEN

However, the class actually includes several more characters:
https://util.unicode.org/UnicodeJsps/list-unicodeset.jsp?a=%5Cp%7BLine_Break%3DAI%7D-%5Cp%7BEast_Asian_Width%3DAmbiguous

There is no clear rhyme or reason to these. Notably, U+2155 VULGAR FRACTION
ONE FIFTH is included, but many other fractions are not, and U+2574 BOX
DRAWINGS LIGHT LEFT is included, but other light box-drawing characters are
not.

Date/Time: Mon Jul 01 15:13:58 CDT 2024
ReportID: ID20240701151358
Name: Charlotte Buff
Report Type: Public Review Issue
Opt Subject: 490

The description of the line break class Ideographic states that unassigned
code points in the CJK Unified Ideographs and CJK Unified Ideographs
Extension A blocks default to lb=ID. However, said blocks no longer contain
any unassigned code points.