Regular Expressions 101

^start of line

Non-Capturing Group(?:[^([{,;=]+|(?<=OPTIONAL)\()+

+repeats the group contents below at least once:

1st Alternative[^([{,;=]+

Negated Character Class[^([{,;=]+

+matches at least one character outside the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

2nd Alternative(?<=OPTIONAL)\(

Positive Lookbehind(?<=OPTIONAL)

OPTIONALthe literal text OPTIONAL (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

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

^(?:[^([{,;=]+|(?<=OPTIONAL)\()+

New

x OPTIONAL() y z(..., ...)
x y z(..., ...)