Regular Expressions 101

Igroup Name:the literal text Igroup Name: (case sensitive)

\s+any whitespace character, repeated at least once

Group 1((?:[\w-]+,\s*)*[\w-]+)

Non-Capturing Group(?:[\w-]+,\s*)*

*repeats the group contents below any number of times:

Character Class[\w-]+

+matches at least one character from the set below:

\wany word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\s*any whitespace character, repeated any number of times

Character Class[\w-]+

+matches at least one character from the set below:

\wany word character

-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

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25 tokens

Regular Expression

Igroup Name:\s+((?:[\w-]+,\s*)*[\w-]+)

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