regex101: PCRE2 (PHP) Match Workspace

^start of line

Group 1(@(?<scope>[a-z0-9][a-z0-9-]*))

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Group scope(?<scope>[a-z0-9][a-z0-9-]*)

Character Class[a-z0-9]

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

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

Character Class[a-z0-9-]*

*matches any number of characters from the set below:

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group name(?<name>([a-z0-9][a-z0-9-]*)(\/([a-z0-9][a-z0-9-]*))*)

Group 4([a-z0-9][a-z0-9-]*)

Character Class[a-z0-9]

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

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

Character Class[a-z0-9-]*

*matches any number of characters from the set below:

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 5(\/([a-z0-9][a-z0-9-]*))*

*repeats the group contents below any number of times:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 6([a-z0-9][a-z0-9-]*)

Character Class[a-z0-9]

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

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

Character Class[a-z0-9-]*

*matches any number of characters from the set below:

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

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

-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

Search reference

Regular Expression

^(@(?<scope>[a-z0-9][a-z0-9-]*))\/(?<name>([a-z0-9][a-z0-9-]*)(\/([a-z0-9][a-z0-9-]*))*)$

Test String
New




@collboard/foo
@collboard/bar
@collboard/foo/bar
@collboard/foo/bar/foobar
@collboard/1/2/3
@collboard/foo-1/bar-2/foobar-3
@collboard-bar/foo-1/bar-2/foobar-3



collboard
@collboard
/missing-scope
/@collboard
@collboard/
@-collboard/foo
@collboard/-foo
@collboard/foo/
@collboard//foo
@collboard/Foo
@collboard/foo*
@collboard/foo~
@collboard/foo+
@collboard/foo_bar

Regular Expressions 101

Regular Expression

Test String
New

Substitution
Processing...

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
Processing...