Regular Expressions 101

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

Negative Lookbehind(?<!http:|https:|ftp:|ftps:)

1st Alternativehttp:

http:the literal text http: (case sensitive)

2nd Alternativehttps:

https:the literal text https: (case sensitive)

3rd Alternativeftp:

ftp:the literal text ftp: (case sensitive)

4th Alternativeftps:

ftps:the literal text ftps: (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

\/\/.+?(?<!http:|https:|ftp:|ftps:)\/\/

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