java - Regex to split based on specific comma -



java - Regex to split based on specific comma -

i have simple requirement. have little string , want split based on comma outside parenthesis.

sample input

sum(col1) on (partition col2, col3) col5,sum(col2) on (partition col2) col4

expected output:

sum(col1) on (partition col2, col3) col5 sum(col2) on (partition col2) col4

thanks

through negative lookahead assertion. case negative lookahead assertion best alternative rather positive lookahead.

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

the above regex match commas if it's not followed by,

[^()]* character not of ( or ) 0 or more times. \) closing paranthesis.

demo

java regex

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