Regular Expressions 101

^start of string

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Group 1(\w+)

\w+any word character, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 2([\w-]+)

Character Class[\w-]+

+matches at least one character from the set below:

\wany word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 3(\w+)

\w+any word character, repeated at least once

$end of string, or before its final line terminator

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

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Regular Expression

^!(\w+):([\w-]+):(\w+)$

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