Regular Expressions 101

Explanation
Pro

1st Alternativediscord(?:app)?\.com\/(?:(friend-)?invite|servers)?\/([a-z0-9\-]+)

discordthe literal text discord (case sensitive)

Non-Capturing Group(?:app)?

?repeats the group contents below at most once:

appthe literal text app (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:(friend-)?invite|servers)?

?repeats the group contents below at most once:

1st Alternative(friend-)?invite

Group 1(friend-)?

?repeats the group contents below at most once:

friend-the literal text friend- (case sensitive)

invitethe literal text invite (case sensitive)

2nd Alternativeservers

serversthe literal text servers (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2([a-z0-9\-]+)

Character Class[a-z0-9\-]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternativediscord\.gg\/(?:\S+\/)?([a-z0-9\-]+)

discordthe literal text discord (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

ggthe literal text gg (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:\S+\/)?

?repeats the group contents below at most once:

\S+any non-whitespace character, repeated at least once

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 3([a-z0-9\-]+)

Character Class[a-z0-9\-]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

Unit Test Summary

No unit tests

Add a test to get started

Quick Reference

25 tokens

Regular Expression

discord(?:app)?\.com\/(?:(friend-)?invite|servers)?\/([a-z0-9\-]+)|discord\.gg\/(?:\S+\/)?([a-z0-9\-]+)

Unit Tests

There are no unit tests.