Regular Expressions 101

1st Alternative(?:(?<!:)\/\/.*|\/\*[\s\S]*?\*\/)(*SKIP)(*F)

Non-Capturing Group(?:(?<!:)\/\/.*|\/\*[\s\S]*?\*\/)

1st Alternative(?<!:)\/\/.*

Negative Lookbehind(?<!:)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

2nd Alternative\/\*[\s\S]*?\*\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternativewhile.+?[\s=(]each[\s(]

whilethe literal text while (case sensitive)

.+?any character (except for line terminators), repeated at least once

Character Class[\s=(]

\sany whitespace character

=the literal = (61₁₀ / 75₈ / 3D₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

eachthe literal text each (case sensitive)

Character Class[\s(]

\sany whitespace character

(the literal ( (40₁₀ / 50₈ / 28₁₆)

Global pattern flags

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

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Search reference

Regular Expression

(?:(?<!:)\/\/.*|\/\*[\s\S]*?\*\/)(*SKIP)(*F)|while.+?[\s=(]each[\s(]

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