在JavaScript中，除非单词列在被排除的单词列表中，否则如何使用正则表达式进行匹配？ [英] In JavaScript, how can I use regex to match unless words are in a list of excluded words?

问题描述

除了某些单词列表外，如何使用正则表达式匹配任何单词（\ w）？例如：

How do I use regex to match any word (\w) except a list of certain words? For example:

我想匹配单词使用和利用以及之后的任何单词，除非单词是某事或 fish 。

I want to match the words use and utilize and any words after it except if the words are something or fish.

use this  <-- match
utilize that  <-- match
use something   <-- don't want to match this
utilize fish <-- don't want to match this

怎么做我指定了一个我不想匹配的单词列表？

How do I specify a list of words I don't want to match against?

推荐答案

您可以使用否定前瞻来确定你要匹配的词不是特别的事。您可以使用以下正则表达式执行此操作：

You can use a negative lookahead to determine that the word you are about to match is not a particular thing. You can use the following regex to do this:

(use|utilize)\s(?!fish|something)(\w+)

这将匹配use或utilization后跟一个空格，然后如果下面的单词不是fish或something，它将匹配下一个单词。

This will match "use" or "utilize" followed by a space, and then if the following word is not "fish" or "something", it will match that next word.

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