负前瞻在带有加号量词的字符范围后不起作用 [英] Negative lookahead not working after character range with plus quantifier

问题描述

我正在尝试实现一个正则表达式，其中包含所有具有任意数量单词但不能后跟 : 的字符串，如果匹配则忽略匹配.我决定用消极的眼光看待它.

I am trying to implement a regex which includes all the strings which have any number of words but cannot be followed by a : and ignore the match if it does. I decided to use a negative look ahead for it.

/([a-zA-Z]+)(?!:)/gm
string: lame:joker

因为我使用的是字符范围，所以它一次匹配一个字符，并且只忽略 : 之前的最后一个字符.在这种情况下，我如何忽略整个匹配项?

since i am using a character range it is matching one character at a time and only ignoring the last character before the : . How do i ignore the entire match in this case?

regex101 链接:https://regex101.com/r/DlEmC9/1

Link to regex101: https://regex101.com/r/DlEmC9/1

推荐答案

在 + 之后做一个词边界检查 \b 以要求它到达结尾这个词.

Do a word boundary check \b after the + to require it to get to the end of the word.

([a-zA-Z]+\b)(?!:)

这是一个运行示例.

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