regex101: PCRE2 (PHP) Substitution Workspace

Non-Capturing Group(?:--|-|\/)

1st Alternative--

--the literal text --

2nd Alternative-

-the literal - (45₁₀ / 55₈ / 2D₁₆)

3rd Alternative\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

cplusplus_the literal text cplusplus_ (case sensitive)

Group 1([A-z0-9_]+)

Character Class[A-z0-9_]+

+matches at least one character from the set below:

A-zone character from A (65₁₀) to z (122₁₀) (case sensitive)

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Non-Capturing Group(?:(?:=|:)((?:\+|-)|(?:[:A-z0-9_]+(?:,[:A-z0-9_]+)*))?)

Non-Capturing Group(?:=|:)

1st Alternative=

=the literal = (61₁₀ / 75₈ / 3D₁₆)

2nd Alternative:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 2((?:\+|-)|(?:[:A-z0-9_]+(?:,[:A-z0-9_]+)*))?

?repeats the group contents below at most once:

1st Alternative(?:\+|-)

Non-Capturing Group(?:\+|-)

1st Alternative\+

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

2nd Alternative-

-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative(?:[:A-z0-9_]+(?:,[:A-z0-9_]+)*)

Non-Capturing Group(?:[:A-z0-9_]+(?:,[:A-z0-9_]+)*)

Character Class[:A-z0-9_]+

+matches at least one character from the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

A-zone character from A (65₁₀) to z (122₁₀) (case sensitive)

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Non-Capturing Group(?:,[:A-z0-9_]+)*

*repeats the group contents below any number of times:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Character Class[:A-z0-9_]+

+matches at least one character from the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

A-zone character from A (65₁₀) to z (122₁₀) (case sensitive)

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

(?:--|-|\/)cplusplus_([A-z0-9_]+)(?:(?:=|:)((?:\+|-)|(?:[:A-z0-9_]+(?:,[:A-z0-9_]+)*))?)

New

--cplusplus_polymorphic_class=::MyNamespace::MyClass
-cplusplus_polymorphic_class=::MyNamespace::MyClass
/cplusplus_polymorphic_class:::MyNamespace::MyClass,::OtherNamespace::OtherClass
/cplusplus_polymorphic_class=+
/cplusplus_polymorphic_class=-

Substitution

$1 $2