Regular Expressions 101

Pro

(?m)applies the following effective flags to the remainder of the pattern: gm

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

^start of line

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

Group 1(\w+\s)+

+repeats the group contents below at least once:

\w+a Unicode word character, repeated at least once

\sa Unicode whitespace character

\s+a Unicode whitespace character, repeated at least once

Group important_date(?P<important_date>\d\d/\d\d/\d\d\d\d)

\da Unicode decimal digit

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\da Unicode decimal digit

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\da Unicode decimal digit

.*any Unicode character (except for line terminators), repeated any number of times

$end of line

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

(?m)^\s*(\w+\s)+\s+(?P<important_date>\d\d/\d\d/\d\d\d\d).*$

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