Regular Expressions 101

^start of line

Group 1(.*?)

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

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

Group 2(~?[\w\-]+(?:=.+)?(?:,~?[\w\-]+(?:=.+)?)*)

~?optionally matches the literal ~ (126₁₀ / 176₈ / 7E₁₆)

Character Class[\w\-]+

+matches at least one character from the set below:

\wany word character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:=.+)?

?repeats the group contents below at most once:

=the literal = (61₁₀ / 75₈ / 3D₁₆)

.+any character (except for line terminators), repeated at least once

Non-Capturing Group(?:,~?[\w\-]+(?:=.+)?)*

*repeats the group contents below any number of times:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

~?optionally matches the literal ~ (126₁₀ / 176₈ / 7E₁₆)

Character Class[\w\-]+

+matches at least one character from the set below:

\wany word character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:=.+)?

?repeats the group contents below at most once:

=the literal = (61₁₀ / 75₈ / 3D₁₆)

.+any character (except for line terminators), repeated at least once

$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

Regular Expression

^(.*?)\$(~?[\w\-]+(?:=.+)?(?:,~?[\w\-]+(?:=.+)?)*)$

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