How to include markdown/HTML in metadata for extension

[royfrancis]

Description

I have an extension that takes metadata text and creates an accordion layout.

---
accordion:
  - acc:
    - header: Item 1
      body: This is the body content for item 1
    - header: Item 2
      body: This is the body content for item 2
    - header: Item 3
      body: This is the body content for item 3
    - header: Item 4
      body: This is the body content for item 4
filters:
  - accordion
---

{{< accordion acc >}}

This works, but only handles plain text. Here is the lua script. I would like this to handle markdown and arbitrary HTML. I would like some advice on how to make this happen. I am sure there must be existing internal functions to do this. Or perhaps there are already other existing solutions that I am not aware of.

[mcanouil]

Accessibility: For better accessibility, please ensure link text is descriptive and meaningful rather than using generic terms such as "here". This helps all users understand the link's destination. See Writing meaningful link text (WCAG).

[mcanouil]

If you want Markdown processing, don't output HTML back to Quarto. Output markdown + raw block.
Or better output only markdown. The only thing requiring HTML is the button because there is no Markdown syntax for that.

• https://github.com/royfrancis/quarto-accordion/blob/main/_extensions/accordion/accordion.lua#L95-L107