正则表达式，用逗号分隔的逗号分隔 [英] Regular expression to split on commas not enclosed in parenthesis
问题描述
我无法编写正则表达式，以便在String.split（Java）表达式中使用，例如仅在逗号上拆分而不在括号中。
I have not been able to write a regular expression, to use in a String.split (Java) expression such as to only split on comma which are not in parentheses.
示例：
（54654,4565）:( 45651,65423） ，4565：45651，（4565,4564）：45651
(54654,4565):(45651,65423),4565:45651,(4565,4564):45651
应该产生3个字符串：
- （54654,4565）:( 45651,65423）
- 4565：45651
- （ 4565,4564）：45651
任何帮助非常感谢。
推荐答案
你可以只用一个前瞻来做到这一点，这比看起来更容易使用。
You can do this with just a lookahead, which is easier to work with than lookbehind.
String[] parts = str.split(",(?![^()]*+\\))");
但其他响应者是对的：如果你不能自己想出这个正则表达式，当需求发生变化时你会怎么做？你可能更了解一个你真正理解的冗长解决方案。
But the other responders are right: if you couldn't come up with this regex on your own, what will you do when the requirements change? You're probably better off with a long-winded solution that you actually understand.
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