Regular Expressions 101

Pro

Non-Capturing Group(?:\(\*(?:[^(]|\([^*])*?\(?\*\)|\(\*[\s\S]*?\(\*[\s\S]*?\*\)[\s\S]*?\*\))

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

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

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

*?repeats the group contents below any number of times:

1st Alternative[^(]

Negated Character Class[^(]

(the literal ( (40₁₀ / 50₈ / 28₁₆)

2nd Alternative\([^*]

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Negated Character Class[^*]

*the literal * (42₁₀ / 52₈ / 2A₁₆)

\(?optionally matches the literal ( (40₁₀ / 50₈ / 28₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative\(\*[\s\S]*?\(\*[\s\S]*?\*\)[\s\S]*?\*\)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Detailed match information will be displayed here automatically.

26 tokens

(?:\(\*(?:[^(]|\([^*])*?\(?\*\)|\(\*[\s\S]*?\(\*[\s\S]*?\*\)[\s\S]*?\*\))

foo (* hello
(* 
there
*)
 *)