Regular Expressions 101

Positive Lookbehind(?<=(_\()|(_n\())

1st Alternative(_\()

Group 1(_\()

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

2nd Alternative(_n\()

Group 2(_n\()

_nthe literal text _n (case insensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Character Class[\w", ()%]+

+matches at least one character from the set below:

\wany word character

"the literal " (34₁₀ / 42₈ / 22₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

%the literal % (37₁₀ / 45₈ / 25₁₆)

Positive Lookahead(?=\))

\)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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

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Search reference

Regular Expression

(?<=(_\()|(_n\())[\w", ()%]+(?=\))

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