如何用“：”分割字符串，但在JavaScript中用引号将部分保留？

Question

I'm trying to create a regex which splits a string by : but don't split the quoted parts:

'a:b:c'.split(/*RegExNeeded*/) // => ['a','b','c']
'a:"1:2":d'.split(/*RegExNeeded*/) // => ['a','1:2', 'd']

I've tried ''.split(':') but it is not working, because it'll split the 1:2 as well.

Answer 1

You could use look ahead to ensure that the number of double quotes that follows a colon is even (not odd):

 var res = 'a:"1:2":d'.split(/:(?=[^"]*(?:"[^"]*"[^"]*)*$)/); console.log(res.join());