Regular Expressions 101

Pro

Group 1(\w*)

\w*any word character, repeated any number of times

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

Group 2(`?)

`?optionally matches the literal ` (96₁₀ / 140₈ / 60₁₆)

Group 3( *\w+(?: +\w+)* *)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

\w+any word character, repeated at least once

Non-Capturing Group(?: +\w+)*

*repeats the group contents below any number of times:

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

\w+any word character, repeated at least once

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

\2the text saved by group 2

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*)\$(`?)( *\w+(?: +\w+)* *)\2

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