如何在标题中添加引号（bookdown）

Question

我在使用 bookdown 的字幕中遇到引号问题。以下 rmarkdown 文档说明了该问题。

---
title: "testdoc"
author: "Dayne Filer"
date: "10/21/2020"
output:
  pdf_document: default
  html_document: default
---

In the main document, "quotation marks" are appropriately typeset. 

```{r}
knitr::kable(matrix(1:2), caption = "In a caption, \"they are not\".")
```

```{r}
knitr::kable(matrix(1:2), caption = '"I did try some alternatives...".')
```

```{r}
knitr::kable(matrix(1:2), caption = '\`\`this works for latex, but not html.\'\'')
```

上面的代码对 html 和 latex 都正确编译（最后一个 table 除外，它对 latex 正确编译，但不是 html）。但是，将文档的 body 复制到随 bookdown 提供的“A Minimal Book Example”中并没有排版正确的引号。我尝试同时使用 xelatex 和 pdflatex 来编译文档。对于 xelatex，它给出以下内容：

pdflatex 给出：

Answer 1

正如 bookdown 作者所指出的，Yihui Xie, when writing long captions, or captions with special characters (e.g. quotation marks), authors should use text references.

在上面的例子中，它看起来像这样：

In the main document, "quotation marks" are appropriately typeset. 
And when using text references, 

(ref:tabCap) "quotation" marks are properly formatted.

```{r}
knitr::kable(matrix(1:2), caption = '(ref:tabCap)')
```

如何在标题中添加引号（bookdown）

How to add quotation marks in caption (bookdown)

r

r-markdown

bookdown