Project: retextjs/retext-sentence-spacing

Package: retext-sentence-spacing@5.2.0

  1. Dependents: 0
  2. retext plugin to check spacing (one or two spaces) between sentences
  1. unified 181
  2. plugin 140
  3. retext 42
  4. retext-plugin 26
  5. spacing 2
  6. spaces 2


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retext plugin to check spacing between sentences.


What is this?

This package is a unified (retext) plugin to check spacing between sentences. For example, it can check for one or two spaces sentences.

When should I use this?

You can opt-into this plugin when you’re dealing with content that might contain mistakes, and have authors that can fix that content.


This package is ESM only. In Node.js (version 16+), install with npm:

npm install retext-sentence-spacing

In Deno with esm.sh:

import retextSentenceSpacing from 'https://esm.sh/retext-sentence-spacing@6'

In browsers with esm.sh:

<script type="module">
  import retextSentenceSpacing from 'https://esm.sh/retext-sentence-spacing@6?bundle'


Say our document example.txt contains:

One sentence. Two sentences.

One sentence.  Two sentences.

…and our module example.js contains:

import {retext} from 'retext'
import retextSentenceSpacing from 'retext-sentence-spacing'
import {read} from 'to-vfile'
import {reporter} from 'vfile-reporter'

const file = await retext()
  .process(await read('example.txt'))


…then running node example.js yields:

3:14-3:16 warning Unexpected 2 spaces between sentence, expected 1 space space retext-sentence-spacing

⚠ 1 warning

The default is to check for 1 space, which can be changed. For example, to 2 spaces:

 const file = await retext()
-  .use(retextSentenceSpacing)
+  .use(retextSentenceSpacing, {preferred: 'double-space'})
   .process(await read('example.txt'))

…now running node example.js once again yields:

1:14-1:15 warning Unexpected 1 space between sentence, expected 2 spaces double-space retext-sentence-spacing

⚠ 1 warning


This package exports no identifiers. The default export is retextSentenceSpacing.

unified().use(retextSentenceSpacing[, options])

Check spacing between sentences.


Transform (Transformer).


Configuration (TypeScript type).



Each message is emitted as a VFileMessage on file, with source set to 'retext-sentence-spacing', ruleId to the preferred style ('newline', 'space', or 'double-space'), actual to the unexpected value, and expected to the expected value.


This package is fully typed with TypeScript. It exports the additional type Options.


Projects maintained by the unified collective are compatible with maintained versions of Node.js.

When we cut a new major release, we drop support for unmaintained versions of Node. This means we try to keep the current release line, retext-sentence-spacing@^6, compatible with Node.js 16.


See contributing.md in retextjs/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.


MIT © Titus Wormer