regexp

Function

  regexp — perform a regular expression search on a string

Synopsis

regexp(re: string|regexp, s: string) -> any

Description

The regexp function returns an array of strings holding the text of the left most match of the regular expression re, which can be either a string value or a regular expression, and the matches of each parenthesized subexpression (also known as capturing groups) if there are any. A null value indicates no match.

Examples

Regexp returns an array of the match and its subexpressions:

echo '"seafood fool friend"' |
  zq -z 'yield regexp(/foo(.?) (\w+) fr.*/, this)' -

=>

["food fool friend","d","fool"]

A null is returned if there is no match:

echo '"foo"' | zq -z 'yield regexp("bar", this)' -

=>

null([string])