javascript - 是否可以构造一个匹配 Grapheme Cluster Break=Extend 的\p JavaScript 正则表达式

Question

Unicode 文本分割需要访问 Grapheme_Cluster_Break字符的属性。众所周知，JavaScript 没有以直接的方式提供。我希望我能够使用 Unicode property escapes在正则表达式中解决这个问题，但这似乎不像 /\p{Grapheme_Cluster_Break=Extend}/u 那样简单或类似的东西。你可以做\p{Grapheme_Extend} , 但测试某些东西 different .

有没有办法欺骗 JavaScript 运行时通过属性转义向我提供有关字符的 Grapheme_Cluster_Break 值的信息？ (如果没有，为什么不呢？)

Answer 1

回复:Grapheme_Cluster_Break=Extend
减去未分配和非字符，UCD 在 Unicode 13 中显示 1725 个字符。

它们可以使用下面的 utf-16 正则表达式范围进行匹配。

此正则表达式使用 Unicode 字符 描述，长度约为 1977 个字符。
仅已分解的未配对代理将转换为 \U符号。

(?:[̀-ͯ҃-҉֑-ׇֽֿׁׂׅׄؐ-ًؚ-ٰٟۖ-ۜ۟-۪ۤۧۨ-ܑۭܰ-݊ަ-ް߫-߽߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛࣓-ࣣ࣡-ंऺ़ु-ै्॑-ॗॢॣঁ়াু-ৄ্ৗৢৣ৾ਁਂ਼ੁੂੇੈੋ-੍ੑੰੱੵઁં઼ુ-ૅેૈ્ૢૣૺ-૿ଁ଼ାିୁ-ୄ୍୕-ୗୢୣஂாீ்ௗఀఄా-ీె-ైొ-్ౕౖౢౣಁ಼ಿೂೆೌ್ೕೖೢೣഀഁ഻഼ാു-ൄ്ൗൢൣඁ්ාි-ුූෟัิ-ฺ็-๎ັິ-ຼ່-ໍཱ༹༘༙༵༷-ཾྀ-྄྆྇ྍ-ྗྙ-ྼ࿆ိ-ူဲ-့္်ွှၘၙၞ-ၠၱ-ၴႂႅႆႍႝ፝-፟ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴឵ិ-ួំ៉-៓៝ᢅᢆᢩᤠ-ᤢᤧᤨᤲ᤹-᤻ᨘᨗᨛᩖᩘ-ᩞ᩠ᩢᩥ-ᩬᩳ-᩿᩼᪰-ᫀᬀ-ᬃ᬴-ᬺᬼᭂ᭫-᭳ᮀᮁᮢ-ᮥᮨᮩ᮫-ᮭ᯦ᯨᯩᯭᯯ-ᯱᰬ-ᰳᰶ᰷᳐-᳔᳒-᳢᳠-᳨᳭᳴᳸᳹᷀-᷹᷻-᷿‌⃐-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꙯-꙲ꙴ-꙽ꚞꚟ꛰꛱ꠂ꠆ꠋꠥꠦ꠬꣄ꣅ꣠-꣱ꣿꤦ-꤭ꥇ-ꥑꦀ-ꦂ꦳ꦶ-ꦹꦼꦽꧥꨩ-ꨮꨱꨲꨵꨶꩃꩌꩼꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫬꫭ꫶ꯥꯨ꯭]|\ud800[\uddfd\udee0\udf76-\udf7a]|\ud802[\ude01-\ude03\ude05\ude06\ude0c-\ude0f\ude38-\ude3a\ude3f\udee5\udee6]|\ud803[\udd24-\udd27\udeab\udeac\udf46-\udf50]|\ud804[\udc01\udc38-\udc46\udc7f-\udc81\udcb3-\udcb6\udcb9\udcba\udd00-\udd02\udd27-\udd2b\udd2d-\udd34\udd73\udd80\udd81\uddb6-\uddbe\uddc9-\uddcc\uddcf\ude2f-\ude31\ude34\ude36\ude37\ude3e\udedf\udee3-\udeea\udf00\udf01\udf3b\udf3c\udf3e\udf40\udf57\udf66-\udf6c\udf70-\udf74]|\ud805[\udc38-\udc3f\udc42-\udc44\udc46\udc5e\udcb0\udcb3-\udcb8\udcba\udcbd\udcbf\udcc0\udcc2\udcc3\uddaf\uddb2-\uddb5\uddbc\uddbd\uddbf\uddc0\udddc\udddd\ude33-\ude3a\ude3d\ude3f\ude40\udeab\udead\udeb0-\udeb5\udeb7\udf1d-\udf1f\udf22-\udf25\udf27-\udf2b]|\ud806[\udc2f-\udc37\udc39\udc3a\udd30\udd3b\udd3c\udd3e\udd43\uddd4-\uddd7\uddda\udddb\udde0\ude01-\ude0a\ude33-\ude38\ude3b-\ude3e\ude47\ude51-\ude56\ude59-\ude5b\ude8a-\ude96\ude98\ude99]|\ud807[\udc30-\udc36\udc38-\udc3d\udc3f\udc92-\udca7\udcaa-\udcb0\udcb2\udcb3\udcb5\udcb6\udd31-\udd36\udd3a\udd3c\udd3d\udd3f-\udd45\udd47\udd90\udd91\udd95\udd97\udef3\udef4]|\ud81a[\udef0-\udef4\udf30-\udf36]|\ud81b[\udf4f\udf8f-\udf92\udfe4]|\ud82f[\udc9d\udc9e]|\ud834[\udd65\udd67-\udd69\udd6e-\udd72\udd7b-\udd82\udd85-\udd8b\uddaa-\uddad\ude42-\ude44]|\ud836[\ude00-\ude36\ude3b-\ude6c\ude75\ude84\ude9b-\ude9f\udea1-\udeaf]|\ud838[\udc00-\udc06\udc08-\udc18\udc1b-\udc21\udc23\udc24\udc26-\udc2a\udd30-\udd36\udeec-\udeef]|\ud83a[\udcd0-\udcd6\udd44-\udd4a]|\ud83c[\udffb-\udfff]|\udb40[\udc20-\udc7f]|[ﬞ︠-︯ﾞﾟ])

demo

此正则表达式相同，但所有 Unicode 字符都被转换
到\U 符号，最终长度为 3670

(?:[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065f\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d3-\u08e1\u08e3-\u0902\u093a\u093c\u0941-\u0948\u094d\u0951-\u0957\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u09fe\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0afa-\u0aff\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c00\u0c04\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c81\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d00\u0d01\u0d3b\u0d3c\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0d81\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135d-\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4\u17b5\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u1885\u1886\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a1b\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1ab0-\u1ac0\u1b00-\u1b03\u1b34-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1bab-\u1bad\u1be6\u1be8\u1be9\u1bed\u1bef-\u1bf1\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1cf4\u1cf8\u1cf9\u1dc0-\u1df9\u1dfb-\u1dff\u200c\u20d0-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua82c\ua8c4\ua8c5\ua8e0-\ua8f1\ua8ff\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\ua9bd\ua9e5\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaa7c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaec\uaaed\uaaf6\uabe5\uabe8\uabed]|\ud800[\uddfd\udee0\udf76-\udf7a]|\ud802[\ude01-\ude03\ude05\ude06\ude0c-\ude0f\ude38-\ude3a\ude3f\udee5\udee6]|\ud803[\udd24-\udd27\udeab\udeac\udf46-\udf50]|\ud804[\udc01\udc38-\udc46\udc7f-\udc81\udcb3-\udcb6\udcb9\udcba\udd00-\udd02\udd27-\udd2b\udd2d-\udd34\udd73\udd80\udd81\uddb6-\uddbe\uddc9-\uddcc\uddcf\ude2f-\ude31\ude34\ude36\ude37\ude3e\udedf\udee3-\udeea\udf00\udf01\udf3b\udf3c\udf3e\udf40\udf57\udf66-\udf6c\udf70-\udf74]|\ud805[\udc38-\udc3f\udc42-\udc44\udc46\udc5e\udcb0\udcb3-\udcb8\udcba\udcbd\udcbf\udcc0\udcc2\udcc3\uddaf\uddb2-\uddb5\uddbc\uddbd\uddbf\uddc0\udddc\udddd\ude33-\ude3a\ude3d\ude3f\ude40\udeab\udead\udeb0-\udeb5\udeb7\udf1d-\udf1f\udf22-\udf25\udf27-\udf2b]|\ud806[\udc2f-\udc37\udc39\udc3a\udd30\udd3b\udd3c\udd3e\udd43\uddd4-\uddd7\uddda\udddb\udde0\ude01-\ude0a\ude33-\ude38\ude3b-\ude3e\ude47\ude51-\ude56\ude59-\ude5b\ude8a-\ude96\ude98\ude99]|\ud807[\udc30-\udc36\udc38-\udc3d\udc3f\udc92-\udca7\udcaa-\udcb0\udcb2\udcb3\udcb5\udcb6\udd31-\udd36\udd3a\udd3c\udd3d\udd3f-\udd45\udd47\udd90\udd91\udd95\udd97\udef3\udef4]|\ud81a[\udef0-\udef4\udf30-\udf36]|\ud81b[\udf4f\udf8f-\udf92\udfe4]|\ud82f[\udc9d\udc9e]|\ud834[\udd65\udd67-\udd69\udd6e-\udd72\udd7b-\udd82\udd85-\udd8b\uddaa-\uddad\ude42-\ude44]|\ud836[\ude00-\ude36\ude3b-\ude6c\ude75\ude84\ude9b-\ude9f\udea1-\udeaf]|\ud838[\udc00-\udc06\udc08-\udc18\udc1b-\udc21\udc23\udc24\udc26-\udc2a\udd30-\udd36\udeec-\udeef]|\ud83a[\udcd0-\udcd6\udd44-\udd4a]|\ud83c[\udffb-\udfff]|\udb40[\udc20-\udc7f]|[\ufb1e\ufe20-\ufe2f\uff9e\uff9f])

demo