Markdown plugin presets

[Atulin]

Summary

Different presets of Markdown plugins

Background & Motivation

I'm displaying some Markdown files from a collection on a page. That page already has an <h1> tag. To avoid having multiple h1 tags, I would need to include a plugin like remark-heading-shift. The issue is, that plugin would be included for every Markdown use, including Markdown pages.

Goals

• Provide a way to create different plugin presets
• Provide a way to use those presets in the <Content /> component
• Alternatively, create a way for Astro to automagically fix headings on a page

Example

export default defineConfig({
  markdown: {
    base: {
      remarkPlugins: [ [remarkToc, { heading: 'toc', maxDepth: 3 } ] ],
      rehypePlugins: [rehypeAccessibleEmojis],
    },
    offset: {
      extends: 'base',
      remarkPlugins: [remarkHeadingShift]
    }
  },
});

---
import { Content } from "../thing.md";
---
<Content preset="offset" />