L4 is a functional programming language created by Legalese to help write digital-first policies, contracts and legislation.

Simply include the Highlight.js library in your webpage or Node app, then load this module.

Simply load the module after loading Highlight.js. You'll use the minified version found in the dist directory. This module is just a CDN build of the language, so it will register itself as the Javascript is loaded.

<script type="text/javascript" src="/path/to/highlight.min.js"></script>
<script type="text/javascript" charset="UTF-8"
  src="/path/to/highlightjs-l4/dist/l4.min.js"></script>
<script type="text/javascript">
  hljs.highlightAll();
</script>

If you're using Node / Webpack / Rollup / Browserify, etc, simply require the language module, then register it with Highlight.js.

var hljs = require('highlightjs');
var hljsL4 = require('highlightjs-l4');

hljs.registerLanguage("l4", hljsL4);
hljs.highlightAll();

You need to import both Highlight.js and third-party language highlighter like this one for L4:

import React, {Component} from 'react'
import 'l4-rules.css' // or your favourite theme
import hljsL4 from 'l4.js'
import hljs from 'highlight.js'
hljs.registerLanguage('l4', hljsL4);

class Highlighter extends Component
{
  constructor(props)
  {
    super(props);
    hljs.highlightAll();
  }

  render()
  {
    let {children} = this.props;
    return
    {
      <pre ref={(node) => this.node = node}>
        <code className="l4">
          {children}
        </code>
      </pre>
    }
  }
}

export default Highlighter;

Highlight.js is released under the BSD 3-Clause License. See LICENSE file for details. highlightjs-l4 is released under the Apache-2.0 License. See LICENSE file for details.

Thomas Gorissen [email protected]

• The official site for the Highlight.js library is https://highlightjs.org/.
• The Highlight.js GitHub project: https://github.com/highlightjs/highlight.js
• Learn more about L4: https://l4.legalese.com