Can a pdf format quarto document have typst snippets?

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Description

This is a speculation of me: Is it possible to have typst snippets inside a pdf format quarto document?

I suspect not, as I cannot compile the following quarto document:

---
format: pdf
---

```{=typst}
$
integral 2 x diff x
$
```

[mcanouil]

No.

format: pdf means LaTeX.
Use format: typst for Typst(/PDF), see https://quarto.org/docs/output-formats/typst.html.

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Thanks, @mcanouil, for your answer.

But maybe by calling pandoc from inside a quarto document (for instance, using python), we can convert typst code to latex.

[mcanouil]

Sorry, but why?
Quarto input is markdown and raw blocks matching the chosen format.
By the way, Typst/LaTeX/HTML share the same (or almost) math system, there is no need for raw blocks. If that is your use case, you are only making things complicated for no reason.

If you want to emit OpenXML and translate it as Typst, or Typst to LaTeX, or any conversion like that, then Quarto is not the tool you need.

Also Pandoc reads everything it knows to AST and then writes as it thinks is the best.

[cscheid]

Quarto doesn't do that by itself, but you could write a Lua filter that converts one to the other. No promises on this, but something like

---
format: pdf
filters:
  - typst_to_latex.lua
---

```{=typst}
$
integral 2 x diff x
$
```

-- typst_to_latex.lua
function RawBlock(raw)
  if raw.format == "typst" then
    return pandoc.RawBlock("latex", pandoc.write(pandoc.read(raw.text, "typst"), "latex"))
  end
end

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That seems to work fine, @cscheid! Thanks! That is very great!

[psads-git]

Sorry, but why?

Some reasons:

Compatibility: Many researchers, authors, and technical writers already have existing LaTeX or Typst code snippets from previous work or collaborations. Enabling Quarto to read these snippets ensures compatibility with existing workflows and documents, reducing the need for extensive reformatting or rewriting.

Code Reuse: If authors or collaborators have already developed LaTeX or Typst code for specific purposes (e.g., custom macros, theorem environments, or specialized diagrams), being able to include these snippets in Quarto documents facilitates code reuse and consistency across different writing projects.

Interoperability: Quarto's ability to read LaTeX and Typst snippets can promote interoperability with other tools and software that generate output in these formats. This integration can streamline workflows and enhance collaboration among teams working with different tools.

Maybe that is why it has been created LaTeX support for Typst via package mitex.