Regular Expressions 101

Pro

Group 1(([a-z_]+)\s*:=\s*)?

?repeats the group contents below at most once:

Group 2([a-z_]+)

Character Class[a-z_]+

+matches at least one character from the set below:

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

:=the literal text :=

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

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Group 3([^']*)

Negated Character Class[^']*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

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

(([a-z_]+)\s*:=\s*)?'([^']*)'

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