Regular Expressions 101

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

P<the literal text P< (case sensitive)

Group 1([a-zA-Z]+)

Character Class[a-zA-Z]+

+matches at least one character from the set below:

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Group 2(([a-zA-Z0-9-_+*:?|\[\]!<>^(),\.\\]+)|(?R)?)

1st Alternative([a-zA-Z0-9-_+*:?|\[\]!<>^(),\.\\]+)

Group 3([a-zA-Z0-9-_+*:?|\[\]!<>^(),\.\\]+)

Character Class[a-zA-Z0-9-_+*:?|\[\]!<>^(),\.\\]+

+matches at least one character from the set below:

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

*the literal * (42₁₀ / 52₈ / 2A₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

^the literal ^ (94₁₀ / 136₈ / 5E₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

2nd Alternative(?R)?

(?R)?optionally recurses into the entire pattern

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

\?P<([a-zA-Z]+)>(([a-zA-Z0-9-_+*:?|\[\]!<>^(),\.\\]+)|(?R)?)\)

New

/^\/test\/(?P<token>p(ae)rn)\.(?P<format>h(((t)))))))ml)\/$/