Regular Expressions 101

1st Alternative(\((?:[^()]++|(?1))*\))(*SKIP)(*F)

Group 1(\((?:[^()]++|(?1))*\))

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Non-Capturing Group(?:[^()]++|(?1))*

*repeats the group contents below any number of times:

1st Alternative[^()]++

Negated Character Class[^()]++

++matches at least one character outside the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative(?1)

(?1)calls group 1 as a subroutine

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative,\h*

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\h*any horizontal whitespace character, repeated any number of times

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(\((?:[^()]++|(?1))*\))(*SKIP)(*F)|,\h*

New

Test A, Test B, Test C (data1, data1)
Test A, Test B, Test C (data1, data1), Test D (data1, data1), Test E (data1, data1)
Test A, Test B, Test C (data1, data1), Test D (data1, data1), Test E ((data1, data1), data(data, data))

Regular Expression

Substitution