Regular Expressions 101

Group 1(.*)

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

Positive Lookahead(?=playlist\.[^.]*)

playlistthe literal text playlist (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Negated Character Class[^.]*

*matches any number of characters outside the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Global pattern flags

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

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Search reference

Regular Expression

(.*)(?=playlist\.[^.]*)

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