Regular Expressions 101

1st AlternativeS\[[^]]*\](*SKIP)(*FAIL)

Sthe literal S (83₁₀ / 123₈ / 53₁₆) (case sensitive)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Negated Character Class[^]]*

*matches any number of characters outside the set below:

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

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

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

2nd Alternative$(?:[^()]|(?R))*$

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

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

*repeats the group contents below any number of times:

1st Alternative[^()]

Negated Character Class[^()]

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative(?R)

(?R)recurses into the entire pattern

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

S\[[^]]*\](*SKIP)(*FAIL)|\((?:[^()]|(?R))*\)

New

I am a (test) S[ but i am (not catched)], catch (me (if you (()(())) can))