Math symbols in Table caption

[giorgiopaulon]

I am interested in exporting a Quarto table to a .pdf document. The only resources I found suggest to use the following

#| tbl-cap: !expr sprintf("A caption with some math, $\\gamma \\geq 0.5$, ($N = %s$)", nrow(iris))
head(iris) %>% 
  flextable()

However, this results in the following

[mcanouil]

The issue comes from the use of flextable() (or gt()).

Somehow the caption is not resolved the same way when the generated table is markdown based or else.
For me, this is definitely a bug.

---
title: "My document"
format:
  pdf: default
  html: default
keep-md: true
---


::: {.cell tbl-cap='A caption with some math, $\gamma \geq 0.5$, ($N = 150$)'}

```{.r .cell-code}
knitr::kable(head(iris))
```

::: {.cell-output-display}
| Sepal.Length| Sepal.Width| Petal.Length| Petal.Width|Species |
|------------:|-----------:|------------:|-----------:|:-------|
|          5.1|         3.5|          1.4|         0.2|setosa  |
|          4.9|         3.0|          1.4|         0.2|setosa  |
|          4.7|         3.2|          1.3|         0.2|setosa  |
|          4.6|         3.1|          1.5|         0.2|setosa  |
|          5.0|         3.6|          1.4|         0.2|setosa  |
|          5.4|         3.9|          1.7|         0.4|setosa  |
:::
:::

::: {.cell tbl-cap='A caption with some math, $\gamma \geq 0.5$, ($N = 150$)'}

```{.r .cell-code}
flextable::flextable(head(iris))
```

::: {.cell-output-display}

```{=html}
<div class="tabwid"><style>.cl-948d899e{}.cl-9489b602{font-family:'Helvetica';font-size:11pt;font-weight:normal;font-style:normal;text-decoration:none;color:rgba(0, 0, 0, 1.00);background-color:transparent;}.cl-948b35f4{margin:0;text-align:right;border-bottom: 0 solid rgba(0, 0, 0, 1.00);border-top: 0 solid rgba(0, 0, 0, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);padding-bottom:5pt;padding-top:5pt;padding-left:5pt;padding-right:5pt;line-height: 1;background-color:transparent;}.cl-948b35fe{margin:0;text-align:left;border-bottom: 0 solid rgba(0, 0, 0, 1.00);border-top: 0 solid rgba(0, 0, 0, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);padding-bottom:5pt;padding-top:5pt;padding-left:5pt;padding-right:5pt;line-height: 1;background-color:transparent;}.cl-948b3fc2{width:0.75in;background-color:transparent;vertical-align: middle;border-bottom: 1.5pt solid rgba(102, 102, 102, 1.00);border-top: 1.5pt solid rgba(102, 102, 102, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);margin-bottom:0;margin-top:0;margin-left:0;margin-right:0;}.cl-948b3fc3{width:0.75in;background-color:transparent;vertical-align: middle;border-bottom: 1.5pt solid rgba(102, 102, 102, 1.00);border-top: 1.5pt solid rgba(102, 102, 102, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);margin-bottom:0;margin-top:0;margin-left:0;margin-right:0;}.cl-948b3fc4{width:0.75in;background-color:transparent;vertical-align: middle;border-bottom: 0 solid rgba(0, 0, 0, 1.00);border-top: 0 solid rgba(0, 0, 0, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);margin-bottom:0;margin-top:0;margin-left:0;margin-right:0;}.cl-948b3fcc{width:0.75in;background-color:transparent;vertical-align: middle;border-bottom: 0 solid rgba(0, 0, 0, 1.00);border-top: 0 solid rgba(0, 0, 0, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);margin-bottom:0;margin-top:0;margin-left:0;margin-right:0;}.cl-948b3fcd{width:0.75in;background-color:transparent;vertical-align: middle;border-bottom: 1.5pt solid rgba(102, 102, 102, 1.00);border-top: 0 solid rgba(0, 0, 0, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);margin-bottom:0;margin-top:0;margin-left:0;margin-right:0;}.cl-948b3fce{width:0.75in;background-color:transparent;vertical-align: middle;border-bottom: 1.5pt solid rgba(102, 102, 102, 1.00);border-top: 0 solid rgba(0, 0, 0, 1.00);border-left: 0 solid rgba(0, 0, 0, 1.00);border-right: 0 solid rgba(0, 0, 0, 1.00);margin-bottom:0;margin-top:0;margin-left:0;margin-right:0;}</style><table data-quarto-disable-processing='true' class='cl-948d899e'><caption></caption><thead><tr style="overflow-wrap:break-word;"><th class="cl-948b3fc2"><p class="cl-948b35f4"><span class="cl-9489b602">Sepal.Length</span></p></th><th class="cl-948b3fc2"><p class="cl-948b35f4"><span class="cl-9489b602">Sepal.Width</span></p></th><th class="cl-948b3fc2"><p class="cl-948b35f4"><span class="cl-9489b602">Petal.Length</span></p></th><th class="cl-948b3fc2"><p class="cl-948b35f4"><span class="cl-9489b602">Petal.Width</span></p></th><th class="cl-948b3fc3"><p class="cl-948b35fe"><span class="cl-9489b602">Species</span></p></th></tr></thead><tbody><tr style="overflow-wrap:break-word;"><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">5.1</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">3.5</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">1.4</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">0.2</span></p></td><td class="cl-948b3fcc"><p class="cl-948b35fe"><span class="cl-9489b602">setosa</span></p></td></tr><tr style="overflow-wrap:break-word;"><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">4.9</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">3.0</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">1.4</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">0.2</span></p></td><td class="cl-948b3fcc"><p class="cl-948b35fe"><span class="cl-9489b602">setosa</span></p></td></tr><tr style="overflow-wrap:break-word;"><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">4.7</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">3.2</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">1.3</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">0.2</span></p></td><td class="cl-948b3fcc"><p class="cl-948b35fe"><span class="cl-9489b602">setosa</span></p></td></tr><tr style="overflow-wrap:break-word;"><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">4.6</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">3.1</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">1.5</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">0.2</span></p></td><td class="cl-948b3fcc"><p class="cl-948b35fe"><span class="cl-9489b602">setosa</span></p></td></tr><tr style="overflow-wrap:break-word;"><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">5.0</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">3.6</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">1.4</span></p></td><td class="cl-948b3fc4"><p class="cl-948b35f4"><span class="cl-9489b602">0.2</span></p></td><td class="cl-948b3fcc"><p class="cl-948b35fe"><span class="cl-9489b602">setosa</span></p></td></tr><tr style="overflow-wrap:break-word;"><td class="cl-948b3fcd"><p class="cl-948b35f4"><span class="cl-9489b602">5.4</span></p></td><td class="cl-948b3fcd"><p class="cl-948b35f4"><span class="cl-9489b602">3.9</span></p></td><td class="cl-948b3fcd"><p class="cl-948b35f4"><span class="cl-9489b602">1.7</span></p></td><td class="cl-948b3fcd"><p class="cl-948b35f4"><span class="cl-9489b602">0.4</span></p></td><td class="cl-948b3fce"><p class="cl-948b35fe"><span class="cl-9489b602">setosa</span></p></td></tr></tbody></table></div>
```

:::
:::

[giorgiopaulon]

See davidgohel/flextable#521 (comment) for the opposite answer on the Flextable front.

[cscheid]

I think @mcanouil meant "it's a quarto bug", not a flextable bug.

[mcanouil]

Indeed I meant/implied it's a Quarto bug since the same thing happens with gt::gt().

[giorgiopaulon]

Thanks, I will open an issue!

[mcanouil]

You can create the issue from this discussion, at the bottom of the right side bar right here (desktop view of GitHub website).

[giorgiopaulon]

The issue is solved in the 1.3 prerelease versions, like https://github.com/quarto-dev/quarto-cli/releases/tag/v1.3.268