Regular Expressions 101

Group 1(.*SHELF)

.*any character (except for line terminators), repeated any number of times

SHELFthe literal text SHELF (case sensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 2(.*)

.*any character (except for line terminators), repeated any number of times

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

.*any character (except for line terminators), repeated any number of times

SHELF-the literal text SHELF- (case sensitive)

Group 3(.*)

.*any character (except for line terminators), repeated any number of times

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

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

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Search reference

Regular Expression

(.*SHELF)-(.*)\[.*SHELF-(.*)\]

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