Regular Expressions 101

Explanation
Pro

Group 1(https?.*?\.com\/)

httpthe literal text http (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2(\s+[\w-]*\s+)

\s+a Unicode whitespace character, repeated at least once

Character Class[\w-]*

*matches any number of characters from the set below:

\wa Unicode word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\s+a Unicode whitespace character, repeated at least once

Group 3(https?.*?\.com\/[\w\.]+)

httpthe literal text http (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[\w\.]+

+matches at least one character from the set below:

\wa Unicode word character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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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25 tokens

(https?.*?\.com\/)(\s+[\w-]*\s+)(https?.*?\.com\/[\w\.]+)

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