Regular Expressions 101

Explanation

Pro

Group func(?<func>[a-zA-Z_]\w+)

Character Class[a-zA-Z_]

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\w+any word character, repeated at least once

\s*any whitespace character, repeated any number of times

Group 2(\((?>[^()]+|(?2))*\))

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Atomic Group(?>[^()]+|(?2))*

*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(?2)

(?2)calls group 2 as a subroutine

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Global pattern flags

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

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?<func>[a-zA-Z_]\w+)\s*(\((?>[^()]+|(?2))*\))

New

var someVar = myValue; object.subob
ject.function(with, some = obj.func(a, b[2][1]), arguments); return true;
// or
var someVar = myValue; object.subobject.function(with, some = obj.fu
nc(a, b[2][1]), arguments); return true;
// or
var someVar = myValue; object.subobject.funct
ion(with, some = obj.func(a, b[2][1]), arguments); retun true;
// and so on

Substitution

var someVar = myValue; object.subob
ject.function(with, some = obj.func(a, b[2][1]), arguments); return true;
// or
var someVar = myValue; object.subobject.function(with, some = obj.fu
nc(a, b[2][1]), arguments); return true;
// or
var someVar = myValue; object.subobject.funct
ion(with, some = obj.func(a, b[2][1]), arguments); retun true;
// and so on