Regular Expressions 101

Pro

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

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

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

*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(?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

Detailed match information will be displayed here automatically.

25 tokens

\(((?:[^\(\)]++|(?R))*)\)

New

a(bc)de(fg)h
a(bcd(ef)g)h
a(bcd(e(f(g(h)))))ij(kl)n(o(qr)p)(s)(tuvw)(((x)y)z)

a(bc)de(fg)h
a(bcd(ef)g)h
a(bcd(e(f(g(h)))))ij(kl)n(o(qr)p)(s)(tuvw)(((x)y)z)