bug#39659: 27.0.60; inappropriate han script definition in char-script-table

[ynyaaa]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: ynyaaa@gmail.com
>> Cc: Kenichi Handa <handa@gnu.org>,  39659@debbugs.gnu.org
>> Date: Wed, 19 Feb 2020 18:53:07 +0900
>> 
>> >> It is better to set values as:
>> >>   3200-33FF       cjk-misc
>> >>   4DC0-4DFF       cjk-misc
>> >>   FE30-FE4F       cjk-misc
>> >>   1F200-1F2FF     cjk-misc
>> >> 
>> >> If enclosed CJK Ideographs should be 'han' script,
>> >> enclosed Hanguls should be 'hangul' script,
>> >> enclosed Katakana should be 'kana' script,
>> >> and enclosed Numbers should be 'symbol' script.
>> >
>> > Please provide some rationale for the differences, just saying
>> > "better" and "should" doesn't explain why you think the changes are
>> > for the good.
>> >
>> > CC'ing Handa-san, who I hope will have some comments on this.
>> >
>> > Thanks.
>> 
>> Because they are not han characters.
>> I think that combinatorial characters are not han characters,
>> and that they are symbolic characters.
>
> So your interpretation of cjk-misc is that they are symbols, not
> letters?  I'm asking because I don't really know what is meant by
> "cjk-misc", I don't think we have it documented anywhere.

I guess the cjk-misc script means CJK related characters.
Block names in the Unicode Character Database are described as below.
(https://www.unicode.org/Public/UCD/latest/ucd/Blocks.txt)
        3000..303F; CJK Symbols and Punctuation
        31C0..31EF; CJK Strokes
        3200..32FF; Enclosed CJK Letters and Months
        3300..33FF; CJK Compatibility
        4DC0..4DFF; Yijing Hexagram Symbols
        FE30..FE4F; CJK Compatibility Forms
        1F200..1F2FF; Enclosed Ideographic Supplement

Yijing Hexagram Symbols(U+4DC0..U+4DFF) are chinese symbols related with
        2630-2637       TRIGRAM FOR *
        268A-268B       MONOGRAM FOR *
        268C-268F       DIGRAM FOR *
        1D300-1D35F     Tai Xuan Jing Symbols
The script symbol for "Yijing Hexagram Symbols" may be 'symbol or
'yijing-hexagram-symbol.