remark-autolink-headings

remark-autolink-headings

Automatically add links to headings with remark.

This package integrates with remark-html. It may be better to work with rehype, which is specifically made for HTML, and to use rehype-autolink-headings instead of this package.

Installation

npm:

npm install remark-autolink-headings

Example

Say we have the following markdown file, example.md:

# Lorem ipsum 😪
## dolor—sit—amet
### consectetur & adipisicing
#### elit
##### elit

And our script, example.js, looks as follows:

const fs = require('fs')
const unified = require('unified')
const markdown = require('remark-parse')
const html = require('remark-html')
const slug = require('remark-slug')
const headings = require('remark-autolink-headings')

const contents = unified()
  .use(markdown)
  .use(slug)
  // Note that this module must be included after remark-slug.
  .use(headings)
  .use(html)
  .processSync(fs.readFileSync('example.md'))
  .toString()

console.log(contents)

Now, running node example yields:

<h1 id="lorem-ipsum-"><a href="#lorem-ipsum-" aria-hidden="true"><span class="icon icon-link"></span></a>Lorem ipsum 😪</h1>
<h2 id="dolorsitamet"><a href="#dolorsitamet" aria-hidden="true"><span class="icon icon-link"></span></a>dolor—sit—amet</h2>
<h3 id="consectetur--adipisicing"><a href="#consectetur--adipisicing" aria-hidden="true"><span class="icon icon-link"></span></a>consectetur &#x26; adipisicing</h3>
<h4 id="elit"><a href="#elit" aria-hidden="true"><span class="icon icon-link"></span></a>elit</h4>
<h5 id="elit-1"><a href="#elit-1" aria-hidden="true"><span class="icon icon-link"></span></a>elit</h5>

API

remark.use(autolinkHeadings[, options])

Add links to headings.

options.behaviour

How to create links (string, default: 'prepend'). Pass 'prepend' to inject the link before the heading text, 'append' for a link after the heading text, and 'wrap' to wrap the whole heading text with the link. Note that supplying wrap will ignore any value defined by the content option.

options.content

HAST nodes to insert in the link (Node|Children). By default, the following is used:

{
  type: 'element',
  tagName: 'span',
  properties: {className: ['icon', 'icon-link']}
  children: []
}

options.linkProperties

Extra properties to set on the link (Object?). Defaults to {ariaHidden: true} when in 'prepend' or 'append' mode.

Contribute

See contributing.md in remarkjs/remark for ways to get started.

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License

MIT © Ben Briggs