为什么我不能使用重音符号的下一个字的边界?
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20-09-2019 - |
题
我在尝试做一个动态regex相匹配的个人的姓名。它的工作没有问题上的大多数名称,直到我遇到了重音符末的名称。
例如:一些奇特的Namé
Regex我迄今使用的是:
/\b(Fancy Namé|Namé)\b/i
使用这样的:
"Goal: Some Fancy Namé. Awesome.".replace(/\b(Fancy Namé|Namé)\b/i, '<a href="#">$1</a>');
这根本不会相匹配。如果我代替é与一个电子,这比赛只是罚款。如果我试着匹配的名称,如"一些花哨的Naméa",它工作得很好。如果我删除该字的最后一个字的边界锚,它工作得很好。
为什么不这个词边界标志在这里工作?任何建议,我怎么会得到围绕这个问题?
我已经考虑采用这样的事情,但我不知道该怎么表现的惩罚将是,如:
"Some fancy namé. Allow me to ellaborate.".replace(/([\s.,!?])(fancy namé|namé)([\s.,!?]|$)/g, '$1<a href="#">$2</a>$3')
建议?想法?
解决方案
JavaScript的正则表达式实现不支持Unicode的。它仅知道在标准的低字节ASCII的“单词字符”,其不包括é
或任何其他音符或非英文字母。
由于é
不是字字符JS,é
后跟一个空格不能被认为是一个字边界。 (如果在一个字的中间使用时,像\b
它将匹配Namés
。)
/([\s.,!?])(fancy namé|namé)([\s.,!?]|$)/
对,那将是JS通常的解决方法(虽然可能有更多的标点字符)。对于其他语言你一般使用前瞻/回顾后,以避免匹配前置和后置边界的人物,但这些不良支持JS /车所以最好避免。
其他提示
罗布是正确的。从ECMAScript的第三版引述:
15.10.2.6断言:
在生产断言
\b
由...评估<强> 2 拨打 IsWordChar(E-1)和让一是布尔值结果,点击 第3 拨打 IsWordChar(e)中和让 B'/ em>的是布尔值结果
和
在内部辅助函数的 IsWordChar ...执行以下操作:
第3 如果 C 的是在表中的63个字符中的一个的下方,返回的真强>
a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 _
由于é
不是这些63个字符中的一个,和é
之间a
的位置将被认为是一个字边界。
如果您知道类的人物,您可以使用负前瞻断言,e.g。
/(^|[^\wÀ-ÖØ-öø-ſ])(Fancy Namé|Namé)(?![\wÀ-ÖØ-öø-ſ])/
知道你的界限
不幸的是,即使当Javascript应该哪天来到已经充分和适当的支持Unicode,你会 仍然 必须精心小心用词的界限。这很容易误解了什么 \b
真的不会。
这里是Perl代码的解释什么 \b
是真的这样做,这是真正的无论是模式发动机已经被国行升级尚未:
# if next is word char:
# then last isn't word
# else last isn't nonword
$word_boundary_before = qr{ (?(?= \w ) (?<! \w ) | (?<! \W ) ) }x;
# if last is word:
# then next isn't word
# else next isn't nonword
$word_boundary_after = qr{ (?(?<= \w ) (?! \w ) | (?! \W ) ) }x;
第一就像是一个 \b
东西之前,第二个是一样 \b
之后。该构造中使用的是regex"如果-那=别"有条件的,这一般形式 (?(COND)THEN|ELSE)
.我在这里使用 冷 的测试的一个预期在第一种情况下,但预期在第二个。的 然后 和 别 条款在这两种情况都是否定lookarounds,以便他们采取的边缘串入帐户。
我的解释更多的关于处理边界以及Unicode的经常表达式 在这里,.
Unicode的财产的支持
的 目前的事态Javascript的治疗Unicode 似乎 是这样Java,Javascript的定义 \w
和这些都是仍然 残废的通过被卡早在1960年代 世界ASCII。这只是一个悲惨的情况下,我承认。甚至蟒蛇,这是非常保守,因为这些事情(例如,它甚至不支持递归regex), 做 允许其定义 \w
和 \s
工作Unicode正确。这是最起码水平的功能,真的。
它既是更好和更糟糕的是在Javasscript.这是bcecause你 可以 使用的一些最基本的Unicode properties在Javascript(或Java)。它看起来像你应该能够使用的一个和两个字"的一般类别"Unicode的性质。这意味着你应该能够使用的简称版本从第一栏如下:
Short Name Long Name
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
\pL \p{Letter}
\p{Lu} \p{Uppercase_Letter}
\p{Ll} \p{Lowercase_Letter}
\p{Lt} \p{Titlecase_Letter}
\p{Lm} \p{Modifier_Letter}
\p{Lo} \p{Other_Letter}
Short Name Long Name
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
\pM \p{Mark}
\p{Mn} \p{Nonspacing_Mark}
\p{Mc} \p{Spacing_Mark}
\p{Me} \p{Enclosing_Mark}
Short Name Long Name
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
\pN \p{Number}
\p{Nd} \p{Decimal_Number},\p{Digit}
\p{Nl} \p{Letter_Number}
\p{No} \p{Other_Number}
Short Name Long Name
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
\pP \p{Punctuation}, \p{Punct})
\p{Pc} \p{Connector_Punctuation}
\p{Pd} \p{Dash_Punctuation}
\p{Ps} \p{Open_Punctuation}
\p{Pe} \p{Close_Punctuation}
\p{Pi} \p{Initial_Punctuation}
\p{Pf} \p{Final_Punctuation}
\p{Po} \p{Other_Punctuation}
Short Name Long Name
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
\pS \p{Symbol}
\p{Sm} \p{Math_Symbol}
\p{Sc} \p{Currency_Symbol}
\p{Sk} \p{Modifier_Symbol}
\p{So} \p{Other_Symbol}
Short Name Long Name
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
\pZ \p{Separator}
\p{Zs} \p{Space_Separator}
\p{Zl} \p{Line_Separator}
\p{Zp} \p{Paragraph_Separator}
Short Name Long Name
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
\pC \p{Other}
\p{Cc} \p{Control}, \p{Cntrl}
\p{Cf} \p{Format}
\p{Cs} \p{Surrogate}
\p{Co} \p{Private_Use}
\p{Cn} \p{Unassigned}
你必须使用短名称,只有在爪哇和Javascript,但Perl可以让你用的很长的名字,这有助于legibilityl的5.12释放Perl支持约3,000Unicode的性质。蟒蛇 仍然 没有任何Unicode财产的支持值得一提的是,红宝石是刚刚开始得到它的1.9释放。PCRE有一些有限的支持,主要是喜欢Java1.7。
Java6支持Unicode块的性质,喜欢 \p{InGeneralPunctuation}
或 \p{Block=GeneralPunctuation}
, 和Java7支持Unicode脚本性质,喜欢 \p{IsHiragana}
或 \p{Script=Hiragana}
.
然而,它仍然不能支持任何东西甚至靠近 全套Unicode properties, 包括近关键的喜欢 \p{WhiteSpace}
, \p{Dash}
, , \p{Quotation_Mark}
, 让单独的其他两个伙伴喜欢 \p{Line_Break=Alphabetic}
, \p{East_Asian_Width:Narrow}
, \p{Numeric_Value=1000}
, 或 \p{Age:5.2}
.
前者设定是非常不可或缺的 尤其是 由于缺乏支持 \s
工作的权利和对后者的设定是非常有用的时候。
别的东西爪哇和Javascript尚不支持 用户限定的性角色.我使用这些相当多的。这样你可以定义的东西喜欢 \p{English::Vowel}
或 \p{English::Consonant}
, ,这是很方便。
如果你有兴趣在Unicode properties为regex工作,使用条款可能想要抓住的 unitrio 套程序: uniprops, unichars, , uninames.这里的一个演示的每个有三个:
$ uninames face
፦ 4966 1366 ETHIOPIC PREFACE COLON
⁙ 8281 2059 FIVE DOT PUNCTUATION
= Greek pentonkion
= quincunx
x (die face-5 - 2684)
∯ 8751 222F SURFACE INTEGRAL
# 222E 222E
☹ 9785 2639 WHITE FROWNING FACE
☺ 9786 263A WHITE SMILING FACE
= have a nice day!
☻ 9787 263B BLACK SMILING FACE
⚀ 9856 2680 DIE FACE-1
⚁ 9857 2681 DIE FACE-2
⚂ 9858 2682 DIE FACE-3
⚃ 9859 2683 DIE FACE-4
⚄ 9860 2684 DIE FACE-5
⚅ 9861 2685 DIE FACE-6
⾯ 12207 2FAF KANGXI RADICAL FACE
# 9762
〠 12320 3020 POSTAL MARK FACE
龜 64206 FACE CJK COMPATIBILITY IDEOGRAPH-FACE
: 9F9C
FMTEYEWTK约Unicode properties:
$ uniprops -va LF 85 Greek:Sigma INFINITY BOM U+3000 U+12345
U+000A ‹U+000A› \N{ LINE FEED (LF) }:
\s \v \R \pC \p{Cc}
\p{All} \p{Any} \p{ASCII} \p{Assigned} \p{C} \p{Other} \p{Cc} \p{Cntrl} \p{Common} \p{Zyyy} \p{Control} \p{Pat_WS} \p{Pattern_White_Space} \p{PatWS} \p{PerlSpace} \p{PosixCntrl} \p{PosixSpace} \p{Space} \p{SpacePerl} \p{VertSpace} \p{White_Space} \p{WSpace}
\p{Age:1.1} \p{Block=Basic_Latin} \p{Bidi_Class:B} \p{Bidi_Class=Paragraph_Separator} \p{Bidi_Class:Paragraph_Separator} \p{Bc=B} \p{Block:ASCII} \p{Block:Basic_Latin} \p{Blk=ASCII} \p{Canonical_Combining_Class:0} \p{Canonical_Combining_Class=Not_Reordered}
\p{Canonical_Combining_Class:Not_Reordered} \p{Ccc=NR} \p{Canonical_Combining_Class:NR} \p{Script=Common} \p{Decomposition_Type:None} \p{Dt=None} \p{East_Asian_Width=Neutral} \p{East_Asian_Width:Neutral} \p{Grapheme_Cluster_Break:LF} \p{GCB=LF} \p{Hangul_Syllable_Type:NA}
\p{Hangul_Syllable_Type=Not_Applicable} \p{Hangul_Syllable_Type:Not_Applicable} \p{Hst=NA} \p{Joining_Group:No_Joining_Group} \p{Jg=NoJoiningGroup} \p{Joining_Type:Non_Joining} \p{Jt=U} \p{Joining_Type:U} \p{Joining_Type=Non_Joining} \p{Line_Break:LF} \p{Line_Break=Line_Feed}
\p{Line_Break:Line_Feed} \p{Lb=LF} \p{Numeric_Type:None} \p{Nt=None} \p{Numeric_Value:NaN} \p{Nv=NaN} \p{Present_In:1.1} \p{Age=1.1} \p{In=1.1} \p{Present_In:2.0} \p{In=2.0} \p{Present_In:2.1} \p{In=2.1} \p{Present_In:3.0} \p{In=3.0} \p{Present_In:3.1} \p{In=3.1}
\p{Present_In:3.2} \p{In=3.2} \p{Present_In:4.0} \p{In=4.0} \p{Present_In:4.1} \p{In=4.1} \p{Present_In:5.0} \p{In=5.0} \p{Present_In:5.1} \p{In=5.1} \p{Present_In:5.2} \p{In=5.2} \p{Script:Common} \p{Sc=Zyyy} \p{Script:Zyyy} \p{Sentence_Break:LF} \p{SB=LF} \p{Word_Break:LF}
\p{WB=LF}
U+0085 ‹U+0085› \N{ NEXT LINE (NEL) }:
\s \v \R \pC \p{Cc}
\p{All} \p{Any} \p{Assigned} \p{InLatin1} \p{C} \p{Other} \p{Cc} \p{Cntrl} \p{Common} \p{Zyyy} \p{Control} \p{Pat_WS} \p{Pattern_White_Space} \p{PatWS} \p{Space} \p{SpacePerl} \p{VertSpace} \p{White_Space} \p{WSpace}
\p{Age:1.1} \p{Bidi_Class:B} \p{Bidi_Class=Paragraph_Separator} \p{Bidi_Class:Paragraph_Separator} \p{Bc=B} \p{Block:Latin_1} \p{Block=Latin_1_Supplement} \p{Block:Latin_1_Supplement} \p{Blk=Latin1} \p{Canonical_Combining_Class:0} \p{Canonical_Combining_Class=Not_Reordered}
\p{Canonical_Combining_Class:Not_Reordered} \p{Ccc=NR} \p{Canonical_Combining_Class:NR} \p{Script=Common} \p{Decomposition_Type:None} \p{Dt=None} \p{East_Asian_Width=Neutral} \p{East_Asian_Width:Neutral} \p{Grapheme_Cluster_Break:CN} \p{Grapheme_Cluster_Break=Control}
\p{Grapheme_Cluster_Break:Control} \p{GCB=CN} \p{Hangul_Syllable_Type:NA} \p{Hangul_Syllable_Type=Not_Applicable} \p{Hangul_Syllable_Type:Not_Applicable} \p{Hst=NA} \p{Joining_Group:No_Joining_Group} \p{Jg=NoJoiningGroup} \p{Joining_Type:Non_Joining} \p{Jt=U}
\p{Joining_Type:U} \p{Joining_Type=Non_Joining} \p{Line_Break:Next_Line} \p{Lb=NL} \p{Line_Break:NL} \p{Line_Break=Next_Line} \p{Numeric_Type:None} \p{Nt=None} \p{Numeric_Value:NaN} \p{Nv=NaN} \p{Present_In:1.1} \p{Age=1.1} \p{In=1.1} \p{Present_In:2.0} \p{In=2.0}
\p{Present_In:2.1} \p{In=2.1} \p{Present_In:3.0} \p{In=3.0} \p{Present_In:3.1} \p{In=3.1} \p{Present_In:3.2} \p{In=3.2} \p{Present_In:4.0} \p{In=4.0} \p{Present_In:4.1} \p{In=4.1} \p{Present_In:5.0} \p{In=5.0} \p{Present_In:5.1} \p{In=5.1} \p{Present_In:5.2} \p{In=5.2}
\p{Script:Common} \p{Sc=Zyyy} \p{Script:Zyyy} \p{Sentence_Break:SE} \p{Sentence_Break=Sep} \p{Sentence_Break:Sep} \p{SB=SE} \p{Word_Break:Newline} \p{WB=NL} \p{Word_Break:NL} \p{Word_Break=Newline}
U+03A3 ‹Σ› \N{ GREEK CAPITAL LETTER SIGMA }:
\w \pL} \p{LC} \p{L_} \p{L&} \p{Lu}
\p{All} \p{Any} \p{Alnum} \p{Alpha} \p{Alphabetic} \p{Assigned} \p{Greek} \p{Is_Greek} \p{InGreek} \p{Cased} \p{Cased_Letter} \p{LC} \p{Changes_When_Casefolded} \p{CWCF} \p{Changes_When_Casemapped} \p{CWCM} \p{Changes_When_Lowercased} \p{CWL} \p{Changes_When_NFKC_Casefolded}
\p{CWKCF} \p{Lu} \p{L} \p{Gr_Base} \p{Grapheme_Base} \p{Graph} \p{GrBase} \p{Grek} \p{Greek_And_Coptic} \p{ID_Continue} \p{IDC} \p{ID_Start} \p{IDS} \p{Letter} \p{L_} \p{Uppercase_Letter} \p{Print} \p{Upper} \p{Uppercase} \p{Word} \p{XID_Continue} \p{XIDC} \p{XID_Start}
\p{XIDS}
\p{Age:1.1} \p{Bidi_Class:L} \p{Bidi_Class=Left_To_Right} \p{Bidi_Class:Left_To_Right} \p{Bc=L} \p{Block:Greek} \p{Block=Greek_And_Coptic} \p{Block:Greek_And_Coptic} \p{Blk=Greek} \p{Canonical_Combining_Class:0} \p{Canonical_Combining_Class=Not_Reordered}
\p{Canonical_Combining_Class:Not_Reordered} \p{Ccc=NR} \p{Canonical_Combining_Class:NR} \p{Decomposition_Type:None} \p{Dt=None} \p{East_Asian_Width:A} \p{East_Asian_Width=Ambiguous} \p{East_Asian_Width:Ambiguous} \p{Ea=A} \p{Grapheme_Cluster_Break:Other} \p{GCB=XX}
\p{Grapheme_Cluster_Break:XX} \p{Grapheme_Cluster_Break=Other} \p{Script=Greek} \p{Hangul_Syllable_Type:NA} \p{Hangul_Syllable_Type=Not_Applicable} \p{Hangul_Syllable_Type:Not_Applicable} \p{Hst=NA} \p{Joining_Group:No_Joining_Group} \p{Jg=NoJoiningGroup}
\p{Joining_Type:Non_Joining} \p{Jt=U} \p{Joining_Type:U} \p{Joining_Type=Non_Joining} \p{Line_Break:AL} \p{Line_Break=Alphabetic} \p{Line_Break:Alphabetic} \p{Lb=AL} \p{Numeric_Type:None} \p{Nt=None} \p{Numeric_Value:NaN} \p{Nv=NaN} \p{Present_In:1.1} \p{Age=1.1} \p{In=1.1}
\p{Present_In:2.0} \p{In=2.0} \p{Present_In:2.1} \p{In=2.1} \p{Present_In:3.0} \p{In=3.0} \p{Present_In:3.1} \p{In=3.1} \p{Present_In:3.2} \p{In=3.2} \p{Present_In:4.0} \p{In=4.0} \p{Present_In:4.1} \p{In=4.1} \p{Present_In:5.0} \p{In=5.0} \p{Present_In:5.1} \p{In=5.1}
\p{Present_In:5.2} \p{In=5.2} \p{Script:Greek} \p{Sc=Grek} \p{Script:Grek} \p{Sentence_Break:UP} \p{Sentence_Break=Upper} \p{Sentence_Break:Upper} \p{SB=UP} \p{Word_Break:ALetter} \p{WB=LE} \p{Word_Break:LE} \p{Word_Break=ALetter}
U+221E ‹∞› \N{ INFINITY }:
\pS \p{Sm}
\p{All} \p{Any} \p{Assigned} \p{InMathematicalOperators} \p{Common} \p{Zyyy} \p{Sm} \p{S} \p{Gr_Base} \p{Grapheme_Base} \p{Graph} \p{GrBase} \p{Math} \p{Math_Symbol} \p{Pat_Syn} \p{Pattern_Syntax} \p{PatSyn} \p{Print} \p{Symbol}
\p{Age:1.1} \p{Bidi_Class:ON} \p{Bidi_Class=Other_Neutral} \p{Bidi_Class:Other_Neutral} \p{Bc=ON} \p{Block:Mathematical_Operators} \p{Canonical_Combining_Class:0} \p{Canonical_Combining_Class=Not_Reordered} \p{Canonical_Combining_Class:Not_Reordered} \p{Ccc=NR}
\p{Canonical_Combining_Class:NR} \p{Script=Common} \p{Decomposition_Type:None} \p{Dt=None} \p{East_Asian_Width:A} \p{East_Asian_Width=Ambiguous} \p{East_Asian_Width:Ambiguous} \p{Ea=A} \p{Grapheme_Cluster_Break:Other} \p{GCB=XX} \p{Grapheme_Cluster_Break:XX}
\p{Grapheme_Cluster_Break=Other} \p{Hangul_Syllable_Type:NA} \p{Hangul_Syllable_Type=Not_Applicable} \p{Hangul_Syllable_Type:Not_Applicable} \p{Hst=NA} \p{Joining_Group:No_Joining_Group} \p{Jg=NoJoiningGroup} \p{Joining_Type:Non_Joining} \p{Jt=U} \p{Joining_Type:U}
\p{Joining_Type=Non_Joining} \p{Line_Break:AI} \p{Line_Break=Ambiguous} \p{Line_Break:Ambiguous} \p{Lb=AI} \p{Numeric_Type:None} \p{Nt=None} \p{Numeric_Value:NaN} \p{Nv=NaN} \p{Present_In:1.1} \p{Age=1.1} \p{In=1.1} \p{Present_In:2.0} \p{In=2.0} \p{Present_In:2.1} \p{In=2.1}
\p{Present_In:3.0} \p{In=3.0} \p{Present_In:3.1} \p{In=3.1} \p{Present_In:3.2} \p{In=3.2} \p{Present_In:4.0} \p{In=4.0} \p{Present_In:4.1} \p{In=4.1} \p{Present_In:5.0} \p{In=5.0} \p{Present_In:5.1} \p{In=5.1} \p{Present_In:5.2} \p{In=5.2} \p{Script:Common} \p{Sc=Zyyy}
\p{Script:Zyyy} \p{Sentence_Break:Other} \p{SB=XX} \p{Sentence_Break:XX} \p{Sentence_Break=Other} \p{Word_Break:Other} \p{WB=XX} \p{Word_Break:XX} \p{Word_Break=Other}
U+FEFF ‹U+FEFF› \N{ ZERO WIDTH NO-BREAK SPACE }:
\pC \p{Cf}
\p{All} \p{Any} \p{Assigned} \p{InArabicPresentationFormsB} \p{C} \p{Other} \p{Case_Ignorable} \p{CI} \p{Cf} \p{Format} \p{Changes_When_NFKC_Casefolded} \p{CWKCF} \p{Common} \p{Zyyy} \p{Default_Ignorable_Code_Point} \p{DI} \p{Graph} \p{Print}
\p{Age:1.1} \p{Bidi_Class:BN} \p{Bidi_Class=Boundary_Neutral} \p{Bidi_Class:Boundary_Neutral} \p{Bc=BN} \p{Block:Arabic_Presentation_Forms_B} \p{Canonical_Combining_Class:0} \p{Canonical_Combining_Class=Not_Reordered} \p{Canonical_Combining_Class:Not_Reordered} \p{Ccc=NR}
\p{Canonical_Combining_Class:NR} \p{Script=Common} \p{Decomposition_Type:None} \p{Dt=None} \p{East_Asian_Width=Neutral} \p{East_Asian_Width:Neutral} \p{Grapheme_Cluster_Break:CN} \p{Grapheme_Cluster_Break=Control} \p{Grapheme_Cluster_Break:Control} \p{GCB=CN}
\p{Hangul_Syllable_Type:NA} \p{Hangul_Syllable_Type=Not_Applicable} \p{Hangul_Syllable_Type:Not_Applicable} \p{Hst=NA} \p{Joining_Group:No_Joining_Group} \p{Jg=NoJoiningGroup} \p{Joining_Type:T} \p{Joining_Type=Transparent} \p{Joining_Type:Transparent} \p{Jt=T}
\p{Line_Break:WJ} \p{Line_Break=Word_Joiner} \p{Line_Break:Word_Joiner} \p{Lb=WJ} \p{Numeric_Type:None} \p{Nt=None} \p{Numeric_Value:NaN} \p{Nv=NaN} \p{Present_In:1.1} \p{Age=1.1} \p{In=1.1} \p{Present_In:2.0} \p{In=2.0} \p{Present_In:2.1} \p{In=2.1} \p{Present_In:3.0}
\p{In=3.0} \p{Present_In:3.1} \p{In=3.1} \p{Present_In:3.2} \p{In=3.2} \p{Present_In:4.0} \p{In=4.0} \p{Present_In:4.1} \p{In=4.1} \p{Present_In:5.0} \p{In=5.0} \p{Present_In:5.1} \p{In=5.1} \p{Present_In:5.2} \p{In=5.2} \p{Script:Common} \p{Sc=Zyyy} \p{Script:Zyyy}
\p{Sentence_Break:FO} \p{Sentence_Break=Format} \p{Sentence_Break:Format} \p{SB=FO} \p{Word_Break:FO} \p{Word_Break=Format} \p{Word_Break:Format} \p{WB=FO}
U+3000 ‹U+3000› \N{ IDEOGRAPHIC SPACE }:
\s \h \pZ \p{Zs}
\p{All} \p{Any} \p{Assigned} \p{Blank} \p{InCJKSymbolsAndPunctuation} \p{Changes_When_NFKC_Casefolded} \p{CWKCF} \p{Common} \p{Zyyy} \p{Z} \p{Zs} \p{Gr_Base} \p{Grapheme_Base} \p{GrBase} \p{HorizSpace} \p{Print} \p{Separator} \p{Space} \p{Space_Separator} \p{SpacePerl}
\p{White_Space} \p{WSpace}
\p{Age:1.1} \p{Bidi_Class:White_Space} \p{Bc=WS} \p{Bidi_Class:WS} \p{Bidi_Class=White_Space} \p{Block:CJK_Symbols_And_Punctuation} \p{Canonical_Combining_Class:0} \p{Canonical_Combining_Class=Not_Reordered} \p{Canonical_Combining_Class:Not_Reordered} \p{Ccc=NR}
\p{Canonical_Combining_Class:NR} \p{Script=Common} \p{Decomposition_Type:Non_Canon} \p{Decomposition_Type=Non_Canonical} \p{Decomposition_Type:Non_Canonical} \p{Dt=NonCanon} \p{Decomposition_Type:Wide} \p{Dt=Wide} \p{East_Asian_Width:F} \p{East_Asian_Width=Fullwidth}
\p{East_Asian_Width:Fullwidth} \p{Ea=F} \p{Grapheme_Cluster_Break:Other} \p{GCB=XX} \p{Grapheme_Cluster_Break:XX} \p{Grapheme_Cluster_Break=Other} \p{Hangul_Syllable_Type:NA} \p{Hangul_Syllable_Type=Not_Applicable} \p{Hangul_Syllable_Type:Not_Applicable} \p{Hst=NA}
\p{Joining_Group:No_Joining_Group} \p{Jg=NoJoiningGroup} \p{Joining_Type:Non_Joining} \p{Jt=U} \p{Joining_Type:U} \p{Joining_Type=Non_Joining} \p{Line_Break:ID} \p{Line_Break=Ideographic} \p{Line_Break:Ideographic} \p{Lb=ID} \p{Numeric_Type:None} \p{Nt=None}
\p{Numeric_Value:NaN} \p{Nv=NaN} \p{Present_In:1.1} \p{Age=1.1} \p{In=1.1} \p{Present_In:2.0} \p{In=2.0} \p{Present_In:2.1} \p{In=2.1} \p{Present_In:3.0} \p{In=3.0} \p{Present_In:3.1} \p{In=3.1} \p{Present_In:3.2} \p{In=3.2} \p{Present_In:4.0} \p{In=4.0} \p{Present_In:4.1}
\p{In=4.1} \p{Present_In:5.0} \p{In=5.0} \p{Present_In:5.1} \p{In=5.1} \p{Present_In:5.2} \p{In=5.2} \p{Script:Common} \p{Sc=Zyyy} \p{Script:Zyyy} \p{Sentence_Break:Sp} \p{SB=Sp} \p{Word_Break:Other} \p{WB=XX} \p{Word_Break:XX} \p{Word_Break=Other}
U+12345 ‹𒍅› \N{ CUNEIFORM SIGN URU TIMES KI }:
\w} \p{\pL} \p{L_} \p{Lo}
\p{All} \p{Any} \p{Alnum} \p{Alpha} \p{Alphabetic} \p{Assigned} \p{InCuneiform} \p{Cuneiform} \p{Is_Cuneiform} \p{Xsux} \p{L} \p{Lo} \p{Gr_Base} \p{Grapheme_Base} \p{Graph} \p{GrBase} \p{ID_Continue} \p{IDC} \p{ID_Start} \p{IDS} \p{Letter} \p{L_} \p{Other_Letter} \p{Print}
\p{Word} \p{XID_Continue} \p{XIDC} \p{XID_Start} \p{XIDS}
\p{Age:5.0} \p{Bidi_Class:L} \p{Bidi_Class=Left_To_Right} \p{Bidi_Class:Left_To_Right} \p{Bc=L} \p{Block:Cuneiform} \p{Canonical_Combining_Class:0} \p{Canonical_Combining_Class=Not_Reordered} \p{Canonical_Combining_Class:Not_Reordered} \p{Ccc=NR}
\p{Canonical_Combining_Class:NR} \p{Script=Cuneiform} \p{Block=Cuneiform} \p{Decomposition_Type:None} \p{Dt=None} \p{East_Asian_Width=Neutral} \p{East_Asian_Width:Neutral} \p{Grapheme_Cluster_Break:Other} \p{GCB=XX} \p{Grapheme_Cluster_Break:XX}
\p{Grapheme_Cluster_Break=Other} \p{Hangul_Syllable_Type:NA} \p{Hangul_Syllable_Type=Not_Applicable} \p{Hangul_Syllable_Type:Not_Applicable} \p{Hst=NA} \p{Joining_Group:No_Joining_Group} \p{Jg=NoJoiningGroup} \p{Joining_Type:Non_Joining} \p{Jt=U} \p{Joining_Type:U}
\p{Joining_Type=Non_Joining} \p{Line_Break:AL} \p{Line_Break=Alphabetic} \p{Line_Break:Alphabetic} \p{Lb=AL} \p{Numeric_Type:None} \p{Nt=None} \p{Numeric_Value:NaN} \p{Nv=NaN} \p{Present_In:5.0} \p{In=5.0} \p{Present_In:5.1} \p{In=5.1} \p{Present_In:5.2} \p{In=5.2}
\p{Script:Cuneiform} \p{Sc=Xsux} \p{Script:Xsux} \p{Sentence_Break:LE} \p{Sentence_Break=OLetter} \p{Sentence_Break:OLetter} \p{SB=LE} \p{Word_Break:ALetter} \p{WB=LE} \p{Word_Break:LE} \p{Word_Break=ALetter}
或者去其他的办法:
$ unichars '\pN' '\D' '\p{Latin}'
Ⅰ 8544 02160 ROMAN NUMERAL ONE
Ⅱ 8545 02161 ROMAN NUMERAL TWO
Ⅲ 8546 02162 ROMAN NUMERAL THREE
Ⅳ 8547 02163 ROMAN NUMERAL FOUR
Ⅴ 8548 02164 ROMAN NUMERAL FIVE
Ⅵ 8549 02165 ROMAN NUMERAL SIX
Ⅶ 8550 02166 ROMAN NUMERAL SEVEN
Ⅷ 8551 02167 ROMAN NUMERAL EIGHT
(etc)
$ unichars -a '\pL' '\p{Greek}' 'NFD ne NFKD' 'NAME =~ /SYMBOL/'
ϐ 976 3D0 GREEK BETA SYMBOL
ϑ 977 3D1 GREEK THETA SYMBOL
ϒ 978 3D2 GREEK UPSILON WITH HOOK SYMBOL
ϓ 979 3D3 GREEK UPSILON WITH ACUTE AND HOOK SYMBOL
ϔ 980 3D4 GREEK UPSILON WITH DIAERESIS AND HOOK SYMBOL
ϕ 981 3D5 GREEK PHI SYMBOL
ϖ 982 3D6 GREEK PI SYMBOL
ϰ 1008 3F0 GREEK KAPPA SYMBOL
ϱ 1009 3F1 GREEK RHO SYMBOL
ϲ 1010 3F2 GREEK LUNATE SIGMA SYMBOL
ϴ 1012 3F4 GREEK CAPITAL THETA SYMBOL
ϵ 1013 3F5 GREEK LUNATE EPSILON SYMBOL
Ϲ 1017 3F9 GREEK CAPITAL LUNATE SIGMA SYMBOL
哦, BNM 装置 "勇敢的新千年", ,参照我们的现代化,后ASCII世界其符超过只有七位微不足道的宽。免费得到它了
与string.replace()接受回调函数作为它的第二个参数。 (不知道为什么这么多的JS教程省略这个实用的功能。)因此,我们可以写我们自己的测试word边界。
其他地方提出的,与正则表达式/(\W|^)(fancy namé|namé)(\W|$)/ig
的溶液,给出文本的情况下,假阳性,如“naméé”。
String.prototype.isWordCharAt = function(i) {
// should work for European languages and Unicode
return (this.charAt(i) >= 'A' && this.charAt(i) <= 'Z')
|| (this.charAt(i) >= 'a' && this.charAt(i) <= 'z')
|| (this.charCodeAt(i) >= 0xC0 && this.charCodeAt(i) < 0x2000)
;
};
"Namé. Goal: Some Fancy Namé. Namé. Nénamé. Namée. Nénamée. Namé"
.replace(/(Namé|Fancy Namé)/ig, function(
match, part1, /* part2, part3, ... */ offset, fullText) {
// Keep in mind that the number of arguments changes
// if the number of capturing parenthesis in regexp changes.
// We could use 'arguments' pseudo-array instead.
var len1 = part1.length;
var leftWordBoundary;
var rightWordBoundary;
if (offset === 0) {
leftWordBoundary = fullText.isWordCharAt(offset);
}
else {
leftWordBoundary = (fullText.isWordCharAt(offset - 1)
!= fullText.isWordCharAt(offset));
}
if (offset + len1 == fullText.length) {
rightWordBoundary = fullText.isWordCharAt(offset + len1 - 1);
}
else {
rightWordBoundary = (fullText.isWordCharAt(offset + len1 - 1)
!= fullText.isWordCharAt(offset + len1));
}
if (leftWordBoundary && rightWordBoundary) {
return '<a href="#">' + part1 + '</a>';
}
else {
return part1;
}
});