White_Space

[14] Unicode の特性 White_Space は、空白文字を表します。

仕様書

[12] UAX #44: Unicode Character Database (2010-10-09 06:36:55 +09:00 版) http://www.unicode.org/reports/tr44/#White_Space

文字の一覧

[13] Character set "$unicode:White_Space" (2013-11-02 08:10:57 +09:00 版) http://chars.suikawiki.org/set?expr=%24unicode%3AWhite_Space

メモ

[1] Unicode Character Database (2008-03-26 03:06:22 +09:00 版) http://unicode.org/Public/UNIDATA/UCD.html#White_Space

[2] PropList-5.1.0.txt (2008-03-21 06:31:08 +09:00 版) http://unicode.org/Public/5.1.0/ucd/PropList.txt

0009..000D    ; White_Space # Cc   [5] <control-0009>..<control-000D>
0020          ; White_Space # Zs       SPACE
0085          ; White_Space # Cc       <control-0085>
00A0          ; White_Space # Zs       NO-BREAK SPACE
1680          ; White_Space # Zs       OGHAM SPACE MARK
180E          ; White_Space # Zs       MONGOLIAN VOWEL SEPARATOR
2000..200A    ; White_Space # Zs  [11] EN QUAD..HAIR SPACE
2028          ; White_Space # Zl       LINE SEPARATOR
2029          ; White_Space # Zp       PARAGRAPH SEPARATOR
202F          ; White_Space # Zs       NARROW NO-BREAK SPACE
205F          ; White_Space # Zs       MEDIUM MATHEMATICAL SPACE
3000          ; White_Space # Zs       IDEOGRAPHIC SPACE

[3] Zs と比べると、

U+0009~U+000D が入ってる
U+0085 が入ってる
U+0028、U+2029 が入ってる

[4] 将来にわたって Zs の超集合であることが保証されているのかは謎。

[15] Compare character sets "$unicode:Zs" and "$unicode:White_Space" (2013-11-02 08:14:33 +09:00 版) http://chars.suikawiki.org/set/compare?expr1=%24unicode%3AZs&expr2=%24unicode%3AWhite_Space

[6] Redefine WSP as White_Space characters from the HTML 5 spec. · w3c/webappsec-subresource-integrity@6a692bf (2015-10-28 11:10:45 +09:00 版) https://github.com/w3c/webappsec-subresource-integrity/commit/6a692bf71eac98d454f5532eb68c63a2cd69d544

[7] Stop using White_Space (annevk著, 2019-08-30 16:18:30 +09:00) https://github.com/whatwg/html/commit/635a59996c72044852306e89a88b68536a2781d8

[8] Should the 'empty cell' definition ignore Default_ignoreable code points? · Issue #4854 · whatwg/html (2020-07-13 12:58:12 +09:00) https://github.com/whatwg/html/issues/4854

[9] Stop using White_Space by annevk · Pull Request #4860 · whatwg/html (2020-07-13 12:58:35 +09:00) https://github.com/whatwg/html/pull/4860