@rpearce/flexible-string-replace

flexible-string-replace

Archived and public domain now (LICENSE).

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Installation

$ npm i @rpearce/flexible-string-replace

or

$ yarn add @rpearce/flexible-string-replace

Usage

flexible-string-replace mirrors the functionality of String.prototype.replace with the following exceptions:

• you can transform your match however you see fit
• the return value is [ * ] – an Array of whatever type your Replacement is or returns. For example, if you pass it a function, then you'll get back a list of strings as well as your match transformations, whereas if you pass a string, you'll get back simply a list of strings with your replacement applied
• the argument order is (Pattern, Replacement, String) so that if you'd like to curry the function and partially apply the first two arguments, you can then reuse those over and over again with different strings

Note: while these examples use some JSX, your matching function can return whatever you like.

import flexibleStringReplace from '@rpearce/flexible-string-replace'

const str = 'The rain in Spain falls mainly on the plain. Spain is nice.'
const searchText = 'spain'
const replacement = (match, offset) => <mark key={offset}>{match}</mark>


// usage with RegExp pattern
const pattern = new RegExp(searchText, 'igm')
flexibleStringReplace(pattern, replacement, str)
// [
//   'The rain in ',
//   <mark>Spain</mark>,
//   ' falls mainly on the plain. ',
//   <mark>Spain</mark>,
//   ' is nice.'
// ]


// usage with RegExp pattern and string Replacement
const pattern = 'Spain'
flexibleStringReplace(pattern, 'foobar', str)
// [
//   'The rain in ',
//   'foobar',
//   ' falls mainly on the plain. ',
//   'foobar',
//   ' is nice.'
// ]


// usage with String pattern (no match)
const pattern = 'spain'
flexibleStringReplace(pattern, replacement, str)
// ["The rain in Spain falls mainly on the plain. Spain is nice."]


// usage with String pattern (match)
const pattern = 'Spain'
flexibleStringReplace(pattern, replacement, str)
// [
//   'The rain in ',
//   <mark>Spain</mark>,
//   ' falls mainly on the plain. Spain is nice.',
// ]

Changelog

[1.1.0] - 2025-07-26

Changed

• License from BSD-3 to Public Domain UNLICENSE