Documentation

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.

Data type: Regexp

v

The string value to search.

Data type: String

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
      )
    })
  )

New! Cloud or OSS?

InfluxDB OSS 2.0 now generally available!

InfluxDB OSS 2.0 is now generally available and ready for production use. See the InfluxDB OSS 2.0 release notes.

For information about upgrading to InfluxDB OSS 2.0, see: