How to hide selected lines of code in quarto code chunk ?

[Andrzej-Andrzej]

Hi,
I want to hide selected lines of code (not always consecutive) in quarto code chunk but still evaluate it and echo it in the output.
How can I do it ?

[baptiste]

---
title: "Untitled"
---

```{r, echo=c(2,3)}
1+1
2+2
3+3
4+4
```

[baptiste]

(or echo=-c(2,3) to selectively hide)

[Andrzej-Andrzej]

Thank you, should I take the line numbers from source editor or does every chunk have line numbering on its own ?

[baptiste]

The line numbers belong to the chunk

[Andrzej-Andrzej]

Thank you, I have tried it but it does not work.

{r, echo = -c(5, 10, 15, 20}

I want to hide this line, but preserve the effect of this fucntion:

officer::run_linebreak()

[mcanouil]

Could you share a small working reproducible example and possibly a screenshot of what output you expect?

[seeM]

Is it possible to do this in Python / with the jupyter engine?

[seeM]

For more context, I want to use the %%bash cell magic in my notebook like so:

%%bash
run-some \
    multiline-command

But I want it to only display the command without the %%bash like:

run-some \
    multiline-command

[cderv]

We don't have this option. It is quite specific to knitr, and supported by Quarto through it. You would need to hack through Lua for supporting this I guess.

For example :

CodeBlock = function(el)
  if el.classes:includes("cell-code") then
    el.text = string.gsub(el.text, "%%%%%a+\n", "")
  end
  return el
end

used with

filters:
  - remove-cell-magic.lua

It could more scoped to be applied on a class or attributes put on the cell code. and Regex could probably be improved.

Hope it helps

[dragonstyle]

This might also be helpful:

https://github.com/jjallaire/code-visibility

[cderv]

Oh nice extension !

[seeM]

Awesome, thank you both! 😄