remark-highlights

This remark plugin allows you to highlight code snippets in markdown files using Atom highlights.

🎉 It supports all the language grammar files that are made for Atom!

Atom packages: #language

Install

npm install remark-highlights

Usage

const remark = require("remark");
const highlights = require("remark-highlights");
const html = require("remark-html");

remark()
  .use(highlights, {
    // Additional languages, useful if your language is not supported by default
    additionalLangs: ["language-rust"]
    // ...more option in docs below
  })
  .use(html)
  .process(/*your content*/);

Options

additionalLangs: Array<string> (default: [])

If you want to use a language that is not handled by default, you have to install a package yourself E.g: to use Rust, you install language-rust package:

npm install language-rust

Then provide the name of the package to this option.

scopePrefix: string (default: syntax--)

Allows you to change the prefix of language scope CSS class.

codeWrap (default: false)

Allows you to add an additional wrapper around the <pre> tag with some attributes. You can send an object like {className: "myclass"}.

Passing true will use {className: "highlight"}.

showFileName (default: false)

Allows you to append filename before the <pre> tag.

showFileIcon (default: false)

Allows you to append icon class before the <pre> tag. This will require an Atom theme that support icons.

preClass (default: "editor editor-colors" (highlights default))

Object to specify a class for the <pre> tag surrounding the code. Set to false to remove the class completely.

wrapAll (default: false)

Allows to wrap the all result (including filename, icon and code).

Adjust syntax theme (CSS styles/colors)

This highlighter is using Atom highlights. So to get a nice CSS theme, you can just choose an Atom theme

Note: Atom themes are less files so a compilation is required.

➡️ The easiest way to quickly get an CSS is to rely on atom-syntax-theme-to-highlights-css.

npx atom-syntax-theme-to-highlights-css --clipboard <repository>

Example

npx atom-syntax-theme-to-highlights-css --clipboard https://github.com/simurai/duotone-dark-sea-syntax