Regular Expressions 101

Explanation

Pro

^start of line

product_list/the literal text product_list/ (case sensitive)

Group category_slug(?P<category_slug>[\w-]+)

Character Class[\w-]+

+matches at least one character from the set below:

\wa Unicode word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:\??(?P<filters>[\w~@=&-]+)?)

\??optionally matches the literal ? (63₁₀ / 77₈ / 3F₁₆)

Group filters(?P<filters>[\w~@=&-]+)?

?repeats the group contents below at most once:

Character Class[\w~@=&-]+

+matches at least one character from the set below:

\wa Unicode word character

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

&the literal & (38₁₀ / 46₈ / 26₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

$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

^product_list/(?P<category_slug>[\w-]+)/(?:\??(?P<filters>[\w~@=&-]+)?)$

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