$$match

Returns a matched substring from input by a pattern (and optionally group id)

Usage

{ 
  "$$match": /* Input string */,
  "pattern": /* string */,
  "group": 0 /* integer */
}

"$$match(<pattern>,[group]):{input}"

note

Concrete values in the usage example are default values.

Returns

string

Arguments

Argument	Type	Values	Required / Default Value	Description
Primary	string		Yes	Input string
pattern	string		Yes	Regular expression to match and extract from input string
group	integer		0	The group id to get

Examples

Input

Definition

Output

"hello"

"$$match([le]):$"

"e"

Test

"hello"

"$$match([le]+):$"

"ell"

Test

"hello"

"$$match(hell):$"

"hell"

Test

"hello"

"$$match(hello$):$"

"hello"

Test

"hello"

"$$match(hell$):$"

null

Test

"world"

"$$match('w(\\\\w+)d',1):$"

"orl"

Test