Regular Expressions 101

Pro

1st Alternative\*[^\W_\n]+_[a-z]\d+\b

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Negated Character Class[^\W_\n]+

+matches at least one character outside the set below:

\Wany character that is not a Unicode word character

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\na line-feed (newline) character (ASCII 10)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Character Class[a-z]

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

\d+a Unicode decimal digit, repeated at least once

\ba Unicode word boundary

2nd Alternative(\d)

Group 1(\d)

\da Unicode decimal digit

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

\*[^\W_\n]+_[a-z]\d+\b|(\d)

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