Library webexercise: HTML <input> field get's geplaced by "____________________"

[OffByOne37]

Description

Hello!

I'm currently using a library that itself uses "exams" and "webexercises"-library.
Those libraries work great when using with output format html, however I need to use "revealjs".

The problem is, when I want to create a exercise where an input field is required, the library creates this for me:

::: {.webex-check .webex-box}

$k$ = <input class='webex-solveme nospaces' data-tol='0.01' size='20' data-answer='["-0.62","-.62"]'/>

$d$ = <input class='webex-solveme nospaces' data-tol='0.01' size='20' data-answer='["-2.5"]'/>

:::

This would be correct and it also works if i render my document as a html. However whenever i render it to the format revealjs the -fields get substituted with simply:

= ____________________

Does someone know what the problem is?

Thanks!

[rgaiacs]

Dear @OffByOne37, can you share a Git repository with a minimal working example of "exams" and "webexercises"-library and your problem?

[OffByOne37]

https://github.com/OffByOne37/problem_input_field

[OffByOne37]

Not really my example but the same problem happens.

When rendered as html everything works fine, but whenever it get's rendered as revealjs the fields are replaced with underscores.

[rgaiacs]

Thanks for the Git repository.

To my knowledge, Quarto internal workflow is .qmd -> .md -> .html where .qmd -> .md is drive by knitr or Jupyter and .md -> .html is drive by Pandoc + filters + post processing.

I added

execute:
  keep-md: true

to the YAML header and run quarto render example_with_html.qmd and quarto render example_with_revealjs.qmd. example_with_html.html.md has

Create fill-in-the-blank questions using `fitb()`, providing the answer as the first argument.

- 2 + 2 is <input class='webex-solveme nospaces' size='1' data-answer='["4"]'/>

You can also create these questions dynamically, using variables from your R session.

and example_with_revealjs.revealjs.md has

Create fill-in-the-blank questions using `fitb()`, providing the answer as the first argument.

- 2 + 2 is _

You can also create these questions dynamically, using variables from your R session.

Based on this, I will say that the issue is not related with Pandoc.

I believe that quarto is setting some options in knitr that is causing fitb() to produce _ instead of <input>.

[cderv]

I think it is just that the webexercices R package is not supporting revealjs output.

It will only check for html or pdf as output format. But when format: revealjs is passed, the value will be revealjs
the code do an exact comparison:
https://github.com/PsyTeachR/webexercises/blob/01ea77227fe39b9b4c208517038521c227ff1eb3/R/webexercises_fns.R#L78-L85

and is not using knitr::is_html_output() which would cover revealjs format being part of HTML supported format.

Maybe webex.js is not working with revealjs framework as the two JS libs could conflict 🤷

Anyhow, this needs to be ask at https://github.com/PsyTeachR/webexercises

[OffByOne37]

Big thanks to both of you!

Will ask it on GitHub-Webexercises