Check support of new tab.cap chunk option in knitr

[cderv]

Next release of knitr will have a tbl.cap chunk options handling

• Kable table caption as chunk option with tab.cap? yihui/knitr#1679 (yihui/knitr@638d3ec)

As quarto does use tbl-cap also, the support should be checked for correct behavior. Especially because tbl-cap is supposed to be today a forwarded attributes in Quarto to the cell

[cderv]

So in fact, knitr introduced tab.cap and not tbl.cap...

@yihui just so you know in Quarto this is tbl-cap that complements fig-cap.

I wonder if

• both should stay separate options, as Quarto has already its own handling,
• we should make tab-cap option map to tbl-cap when inside Quarto (this would one in Quarto R code)
• Add to knitr::convert_chunk_header() to transform ```{r, tab.cap="content"} to its ``#| tbl-cap: content` counterpart with Quarto

Probably the second is the best choice

[yihui]

Oh I didn't know tbl.cap has existed in Quarto. Name-wise, I prefer tab.cap over tbl.cap since the naming is more consistent (first three letters of a word: figure -> fig, caption -> cap, so table -> tab). Anyway, I have added support for tbl.cap in knitr: yihui/knitr@c9473ad

[cscheid]

"tab" clashes with "tabsets" for us, which is why I think we went with "tbl". Sorry for the confusion, and thanks for adding that as well!

[cderv]

All seems to work as expected because we handle caption set in Markdown, LaTeX and HTML and that what knitr is producing.
So even with tbl-cap not set but tab-cap we do get a caption.

--- title: Hello format: pdf keep-md: true --- ```{r} #| tab-cap: test knitr::kable(head(cars), format = 'latex') ```	\begin{table} \caption{\label{tab:unnamed-chunk-1}test}
--- title: Hello format: html keep-md: true --- ```{r} #| tab-cap: test knitr::kable(head(cars), format = 'html') ```	`````{=html} <table> <caption>test</caption>
--- title: Hello format: html keep-md: true --- ```{r} #| tab-cap: test knitr::kable(head(cars), format = 'pipe') ```	::: {.cell-output-display} Table: test | speed| dist| |-----:|----:| | 4| 2| | 4| 10| | 7| 4| | 7| 22| | 8| 16| | 9| 10|

So it won't break anything, but still tbl-cap should be used with Quarto.