我正在尝试制作一个与人名相匹配的动态正则表达式。它在大多数名称上都没有问题，直到我在名称的末尾遇到重音字符。
示例：一些FancyNamé
到目前为止我使用的正则表达式是：
/\b(Fancy Namé|Namé)\b/i
像这样使用：
"Goal: Some Fancy Namé. Awesome.".replace(/\b(Fancy Namé|Namé)\b/i, '<a href="#">$1</a>');
这根本不匹配。如果我用e替换é，它就匹配得很好。 如果我尝试匹配诸如“SomeFancyNaméa”这样的名字，它就可以了。 如果我删除单词最后一个词边界锚，它就可以正常工作。
为什么字边界标志不起作用？关于如何解决这个问题的任何建议？
我考虑使用类似的东西，但我不确定性能惩罚会是什么样的：
"Some fancy namé. Allow me to ellaborate.".replace(/([\s.,!?])(fancy namé|namé)([\s.,!?]|$)/g, '$1<a href="#">$2</a>$3')
连连呢？想法？
答案 0 :(得分：14)
JavaScript的正则表达式实现不支持Unicode。它只知道标准低字节ASCII中的“单词字符”，它不包括é或任何其他重音或非英语字母。
因为é不是JS的单词字符，所以后跟空格的é永远不能被视为单词边界。 （如果在单词的中间使用\b，则匹配Namés。
/([\s.,!?])(fancy namé|namé)([\s.,!?]|$)/
是的，这将是JS的常用解决方法（尽管可能有更多的标点字符）。对于其他语言，你通常使用lookahead / lookbehind来避免匹配前后边界字符，但这些在JS中支持不足/错误，所以最好避免使用。
答案 1 :(得分：7)
15.10.2.6断言：
生产断言
\b按......评估2。调用 IsWordChar（e-1）并让 a 成为布尔结果
3。调用 IsWordChar（e）并让 b 成为布尔结果
和
内部帮助函数 IsWordChar ...执行以下操作：
3. 如果 c 是下表中的六十三个字符之一，请返回 true 。
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63个字符中的一个，因此é和a之间的位置将被视为字边界。
如果您知道字符类，则可以使用负前瞻断言，例如
/(^|[^\wÀ-ÖØ-öø-ſ])(Fancy Namé|Namé)(?![\wÀ-ÖØ-öø-ſ])/
答案 2 :(得分：4)
不幸的是，即使有一天Javascript应该对Unicode有充分和适当的支持，你仍然仍然必须非常谨慎地使用字边界。很容易误解\b真正的作用。
以下是解释\b实际正在做什么的Perl代码，无论您的模式引擎是否已进行BNM升级，都是如此：
# 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;
第一个就像\b之前的东西，第二个就像之后的\b。使用的构造是正则表达式“IF-THEN = ELSE”条件，其具有一般形式(?(COND)THEN|ELSE)。在这里，我使用 COND 测试，这在第一种情况下是先行，但在第二种情况下是先行。两种情况下的 THEN 和 ELSE 子句都是否定的外观，因此它们会考虑字符串的边缘。
我解释了有关在正则表达式here中处理边界和Unicode的更多信息。
current state of affairs in Javascript’s treatment of Unicode 似乎就像Java一样，Javascript对\w的定义仍然因为被困在20世纪60年代而被瘫痪 ASCII世界。我承认，这只是一个悲惨的情况。即使是Python，这些事情都非常保守（例如，它甚至不支持递归正则表达式），确实允许\w和\s的定义工作在Unicode上正确。这是最低级别的功能，真的。
Javasscript中既好又坏。这是因为你可以在Javascript（或Java）中使用一些最基本的Unicode属性。看起来您应该能够使用单字符和双字符“常规类别”Unicode属性。这意味着您应该能够使用以下第一列中的短名称版本：
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}
您必须仅在Java和Javascript中使用短名称，但Perl也允许您使用长名称，这有助于提高可读性，因为Perl的5.12版本支持大约3,000个Unicode属性。 Python 仍然没有值得一提的任何Unicode属性支持，Ruby刚刚开始在1.9版本中获得它。 PCRE有一些有限的支持，主要是像Java 1.7那样。
Java6支持Unicode块属性，如\p{InGeneralPunctuation}或\p{Block=GeneralPunctuation}，Java7支持Unicode脚本属性，如\p{IsHiragana}或\p{Script=Hiragana}。
但是，它仍然不支持任何接近full set of Unicode properties的内容，包括\p{WhiteSpace}，\p{Dash}和\p{Quotation_Mark}等近乎重要的内容，更不用说其他两个人，如\p{Line_Break=Alphabetic}，\p{East_Asian_Width:Narrow}，\p{Numeric_Value=1000}或\p{Age:5.2}。
前者是非常必不可少的 - 尤其是，因为缺乏对\s工作权的支持 - 而后者的设置有时非常有用。
Java和Javascript尚不支持的其他内容是user-defined character properties。我用了那么多。这样您就可以定义\p{English::Vowel}或\p{English::Consonant}等内容，非常方便。
如果您对正则表达式工作的Unicode属性感兴趣，tou可能想要获取 unitrio 程序套件：uniprops，unichars和{{3} }。以下是这三者中的每一个的演示：
$ 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
关于Unicode属性的FMTEYEWTK：
$ 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 ‹› \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，走另一条路：
$ 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 意味着“勇敢的新千年”，指的是我们现代的后ASCII世界，其中字符不仅仅是七个微小的宽度。 ☺
答案 3 :(得分：1)
String.replace（）接受回调函数作为其第二个参数。 （不知道为什么这么多JS教程省略了这个有用的功能。）因此，我们可以编写自己的单词边界测试。
其他地方提出的解决方案，使用正则表达式/(\W|^)(fancy namé|namé)(\W|$)/ig，在“naméé”等文本的情况下会出现误报。
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;
}
});
答案 4 :(得分：0)
如果要匹配“ my_word”
您可以在?<!后面使用消极外观，在?!前面使用消极外观
将检查单词的前面没有非单词字符，也没有后面有非单词字符
new RegExp(`(?<![A-Za-zÀ-ÖØ-öø-ÿ])my_word(?![A-Za-zÀ-ÖØ-öø-ÿ])`, "gi");
-用于ASCII表中的间隔。
在这里检查它的Ascii表正好是您需要的
http://seamons.com/projects/js/ascii_table.html
答案 5 :(得分：0)
正如其他回答者已经指出的那样，JS 正则表达式引擎不认为“é”是一个单词字符。既然是这样，并且您想匹配该字母后跟另一个非单词字符，则可以在此处使用 \B assertion：
> "Goal: Some Fancy Namé. Awesome.".replace(/\b(Fancy Namé|Namé)\B/i, '<a href="#">$1</a>');
'Goal: Some <a href="#">Fancy Namé</a>. Awesome.'
如果你想让它的意图显而易见的话，这可能不是最好的代码，但它在这种情况下有效，呵呵。
答案 6 :(得分：-1)
使用正则表达式时，也许可以尝试使用\o或\x标记。
this reference for Javascript regular expressions的结尾可能会帮助你。
关于与é相关的实际八进制/十六进制值，我不确定。