仅当不包含在括号中时，如何拆分每个逗号的String var？

Question

I have this String test = "elevation[value1,value2],temperature[value2,value3],radiance[value4,value5]..."

I would like to split each , not contained between square brackets. To get something like [ [elevation[value1,value2]], [temperature[value2,value3]], [radiance[value4,value5]] ]

I mean each element will be like elevation[value1,value2]

I am really not confortable using regex, if someone can help me.

Answer 1

You can target each comma that is not contained within brackets using following regex but assuming your brackets will have to be balanced.

,(?![^\[]*\])

and split to get your desired results.

Demo

Link to Java code demo

Explanation:

• , - Match a comma
• (?![^\[]*\]) - This negative lookahead ensures that there is no ] character directly without an [ opening bracket.