How to use parameters with typst and quarto?

[durraniu]

Description

I'm trying to generate pdfs using typst and quarto. Is it possible to provide csv file as a parameter for raw typst code to read it? For example:

---
title: "CSV Data Report"
format: typst
params:
  csv_file: "data.csv"
---

```{=typst}
// Read the CSV file as raw text
#let csv_content = read(params$csv_file)

// Split the CSV content into rows
#let rows = csv_content.split("\n")

// Split each row into columns
#let data = rows.map(row => row.split(","))

= Data from CSV

#table(
  columns: 2,
  [*Column 1*], [*Column 2*],
  ..data.flatten()
)
```

This does not work though. Any advice is appreciated. Thanks.

[mcanouil]

You could try using the variable shortcode or meta shortcode, but by definition parameters are for computations thus code-cells not raw markup.

Could you properly format your post using code blocks for code and terminal outputs? Thanks.
If your code contains code blocks, you need to enclose it using more backticks, i.e., usually four ````.
See https://quarto.org/bug-reports.html#formatting-make-githubs-markdown-work-for-us.

[durraniu]

Thanks.

[gordonwoodhull]

I think currently the best way to do this kind of thing is to modify the Typst partials and add your Typst code there.

https://quarto.org/docs/output-formats/typst-custom.html

[mcanouil]

Indeed, as it means you could use YAML option directly. (I forgot about it eventhough I'm using this in an extension)

[cderv]

If you want to it using knitr engine, you need to produce your typst raw block from R cell output

---
title: "CSV Data Report"
format: typst
keep-typ: true
params:
  csv_file: "data.csv"
---

```{r}
#| echo: false
#| output: asis
knitr::knit_expand(text = '
// Read the CSV file as raw text
#let csv_content = read("{{ params$csv_file }}")

// Split the CSV content into rows
#let rows = csv_content.split("\\n")

// Split each row into columns
#let data = rows.map(row => row.split(","))

= Data from CSV

#table(
  columns: 2,
  [*Column 1*], [*Column 2*],
  ..data.flatten()
)
') |> knitr::raw_block("typst")
```

This leverages

• Templating logic: You could also use glue::glue(). And also store the typst string template into a file.
• output: asis to output raw markdown
• knitr::raw_block() to produce the Markdown Raw Block syntax

It will produce in the intermediate .md for Pandoc rendering

```{=typst}

// Read the CSV file as raw text
#let csv_content = read("data.csv")

// Split the CSV content into rows
#let rows = csv_content.split("\n")

// Split each row into columns
#let data = rows.map(row => row.split(","))

= Data from CSV

#table(
  columns: 2,
  [*Column 1*], [*Column 2*],
  ..data.flatten()
)
```

and so in typst

// Read the CSV file as raw text
#let csv_content = read("data.csv")

// Split the CSV content into rows
#let rows = csv_content.split("\n")

// Split each row into columns
#let data = rows.map(row => row.split(","))

= Data from CSV

#table(
  columns: 2,
  [*Column 1*], [*Column 2*],
  ..data.flatten()
)

Depending if your project uses R this could be easier than tweaking templates partials

Hope it helps

[durraniu]

This is awesome! Thanks.