如何仅使用正则表达式匹配不包含特定单词的字符串范围？

Question

I have a string like this.

var str = "[cat dog] [dog cow] [cow cat] [cat tiger] [tiger lion] [monkey dog]";

I want to match the pair of animals that doesn't contain a specific one. For example I want to select all pair of animals that doesn't contain dog. So the output should be

[cow cat]
[cat tiger]
[tiger lion]

Is it possible to match using Regular Expression using str.match() method?

Answer 1

This seems to work:

 var regex = /\\[(?!dog)([az]+) (?!dog)([az]+)\\]/gi; var string = "[cat dog] [dog cow] [cow cat] [cat tiger] [tiger lion] [monkey dog]"; console.log(string.match(regex)); 

The above regex matches only two animals in each pair of brackets - this one matches one or more:

 var regex = /\\[((?!dog)([az]+) ?){2,}\\]/gi; var string = "[cat dog] [dog cow] [cow cat] [cat tiger] [tiger lion] [monkey dog] [one animal two animal three animal]"; console.log(string.match(regex));