如何强制kableExtra中的线路破坏逃脱= false的功能？

Question

在kableExtra＆gt; = 0.8.0中， add_header_above 或 pack_rows 是直接添加 \ n 。

但是，这似乎不适用于 etaver = false 参数，如果文本还包含乳胶代码，则需要。

KableExtra中的一个强制线破坏如何使用逃脱= false ？

library(dplyr)
library(knitr)
library(kableExtra)

starwars %>%
  filter(species == 'Gungan' | species == 'Droid') %>%
  arrange(species) %>%
  select(name, eye_color) %>%
  kbl(booktabs = TRUE) %>%
  pack_rows(
    index = c(
      'The droids: everybody\'s favourite' = 6, 
      'The Gungans: only beloved of \nthose aged under $3^2$' = 3), 
    escape = FALSE)

Answer 1

问题

问题是您希望逃脱标题的一部分（即休息），而不是逃脱另一部分（即数学代码）。

进一步的并发症

此核心问题进一步复杂化了许多因素：

1. 何时以及如何编程kableExtra来处理逃避
2. 渴望拥有适用于HTML和乳胶输出的解决方案
3. 何时以及如何评估代码的解决方案

的解决方案，

这是一个解决方案。这将适用于HTML和乳胶输出，但它不像您的原始代码那样干净，直截了当：

# a new version of `kableExtra::linebreak()` that takes into account what type 
# of output is desired as well as how much escaping is necessary
linebreak2 <- function(x, double_escape = TRUE, ...) {
  # if LaTeX insert text into a `\makecell[]{}` command and double escape
  if(knitr::is_latex_output())
    return(linebreak(x, double_escape = double_escape, ...))
  
  # if html output just replace `\n`s with `<br/>`s
  if(knitr::is_html_output())
    return(gsub("\n", "<br/>", x))
  
  # let x pass through for other types of output
  return(x)
}

# build the index named vector outside the pipe flow 
# in order to set the names using `linebreak2()`
index <- c(6, 3)
names(index) <- c(
  'The droids: everybody\'s favourite',
  linebreak2('The Gungans: only beloved of \nthose aged under $3^2
 PDF输出
  
 HTML输出
  
)
)

# proceed as before
starwars %>%
  filter(species == 'Gungan' | species == 'Droid') %>%
  arrange(species) %>%
  select(name, eye_color) %>%
  kbl(booktabs = TRUE) %>%
  pack_rows(index = index, escape = FALSE)

PDF输出

HTML输出

Answer 2

您可以使用 html 线路断开标签＆lt; br/＆gt; ：

starwars %>%
  filter(species == 'Gungan' | species == 'Droid') %>%
  arrange(species) %>%
  select(name, eye_color) %>%
  kbl(booktabs = TRUE) %>%
  pack_rows(
    index = c(
      'The droids: everybody\'s favourite' = 6, 
      'The Gungans: only beloved of <br/> those aged under $3^2
   
 = 3), 
    escape = FALSE)