[csswg-drafts] [css-text-4] Unicode category in "fullwidth closing punctuation" (#4241)

MurakamiShinyu has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-text-4] Unicode category in "fullwidth closing punctuation" ==
https://drafts.csswg.org/css-text-4/#fullwidth-closing-punctuation

Current text:
> **fullwidth closing punctuation**   
> Includes any closing punctuation character (Unicode category `Pe`) that belongs to …

I checked [Unicode category `Pe`](https://unicode.org/cldr/utility/list-unicodeset.jsp?a=[:gc=Pe:]) and found that this category does not include closing punctuations "、。，．" (ideographic/fullwidth comma/fullstop). I think this should be [Line_Break property: Close_Punctuation (CL)](https://unicode.org/cldr/utility/list-unicodeset.jsp?a=[:lb=CL:]) that includes "，﹐ 、︑ ．﹒ 。︒ ".

On the other hand, about the **fullwidth opening punctuation**, current definition "any opening punctuation character (Unicode category Ps) that belongs to …" is ok, and changing the category to  "Line_Break property: Open_Punctuation (OP)" will be also ok since the character sets are same in the range "that belongs to the CJK Symbols and Punctuation block (U+3000–U+303F) or is categorized as East Asian Fullwidth (F)".

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/4241 using your GitHub account