regexp.findStringIndex() function

The regexp.findStringIndex() function returns a two-element array of integers defining the beginning and ending indexes of the left-most regular expression match in a string.

Output data type: Array of Integers

import "regexp"

regexp.findStringIndex(r: /ab?/, v: "tablet")

// Returns [1, 3]

Parameters

r

The regular expression used to search v.

v

The string value to search.

Examples

Index the bounds of first regular expression match in each row

import "regexp"

data
    |> map(fn: (r) => ({r with
            regexStr: r.regexStr,
            _value: r._value,
            matchIndex: regexp.findStringIndex(
                r: regexp.compile(r.regexStr),
                v: r._value
            )
        })
    )