Regular Expressions 101

1st Alternative(channel\/|user\/)(?P<unslash>[\w_-]+)

Group 1(channel\/|user\/)

1st Alternativechannel\/

channelthe literal text channel (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativeuser\/

userthe literal text user (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group unslash(?P<unslash>[\w_-]+)

Character Class[\w_-]+

+matches at least one character from the set below:

\wa Unicode word character

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative\/(channel\/|user\/)(?P<slash>[\w_-]+)\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 3(channel\/|user\/)

1st Alternativechannel\/

channelthe literal text channel (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativeuser\/

userthe literal text user (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group slash(?P<slash>[\w_-]+)

Character Class[\w_-]+

+matches at least one character from the set below:

\wa Unicode word character

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Global pattern flags

u modifier: unicode. Treats the pattern and subject as UTF-16

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

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

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Search reference

Regular Expression

(channel\/|user\/)(?P<unslash>[\w_-]+)|\/(channel\/|user\/)(?P<slash>[\w_-]+)\/

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