[英]Custom regex word boundary (javascript)
I'm trying to create a custom word boundary (like \b
) that also takes words starting or ending with the unicode characters "ÆØÅæøå" into consideration.我正在尝试创建一个自定义单词边界(如
\b
),它还考虑以 unicode 字符“ÆØÅæøå”开头或结尾的单词。
Now the only thing I can come up with is this ugly thing现在我唯一能想到的就是这个丑陋的东西
((?<?[\wÆØÅæøå])(?=[\wÆØÅæøå])|(?![\wÆØÅæøå])(?<=[\wÆØÅæøå]))
Is there a more elegant solution to this?有没有更优雅的解决方案? Or is this the only way.
或者这是唯一的方法。
You can use:您可以使用:
(?<!\p{L}\p{M}*|[\p{N}_]) // leading word boundary, similar to \<, [[:<:]] or \m in other flavors
(?![\p{L}\p{N}_]) // trailing word boundary, similar to \>, [[:>:]] or \M
Compile the regex with the u
modifier to enable Unicode category classes.使用
u
修饰符编译正则表达式以启用 Unicode 类别类。
The (?<!\p{L}\p{M}*|[\p{N}_])
is a negative lookbehind that matches a location not immediately preceded with a letter followed with zero or more diacritic marks or a digit or an underscore. (?<!\p{L}\p{M}*|[\p{N}_])
是一个否定的lookbehind,它匹配一个没有紧跟在字母前面的位置,后面跟着零个或多个变音符号或数字或下划线。
The (?![\p{L}\p{N}_])
is a negative lookahead that matches a location not immediately followed with a letter, digit or an underscore. (?![\p{L}\p{N}_])
是一个否定的前瞻,它匹配一个没有紧跟字母、数字或下划线的位置。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.