This PR is an updated version of #43 and closes #41. I've simplified how we create the box around a chunk. Instead of wrapping the chunk in a div that we style to look like a fieldset tag, we now just wrap the chunk in a fieldset tag. This means that we can cut down on the amount of additional CSS styles we are adding into the file and it simplifies the logic within the add_chunk_label_hyperlinks function. To handle the differences between rendering single HTML pages and bookdown sites, I had to change how we select the HTML files to work on for the litr_html_document and litr_gitbook functions. Finally, I added a few extra lines to the error message when a user has the wrong version of litr installed with the command for installing the release version of litr.

In terms of tests I have been able to produce the desired documents for a single Rmarkdown document by generating an example document and adding the following chunks to the document:

rmarkdown::draft("example.Rmd", template = "make-an-r-package", package = "litr")

```{r a, eval=FALSE}
x <- x + 7
y <- 2 * x

#' A function defined with references to chunks.
#' 
#' This function does some math.
#' 
#' @param x a number
#' @export 
add_five <- function(x) {
  <<a>>
  <<b>>
  return(x)
}

add_five(1)
<<c>>
add_five(10)

x <- y / 2
x <- x - 2

add_five(-2)

#' Another function defined with references to chunks.
#' 
#' This function does some math.
#' 
#' @param x a number
#' @export 
add_seven_and_double <- function(x) {
  <<a>>
  return(y)
}

I had to use rmarkdown::render for the changes to display properly

rmarkdown::render("example.Rmd")


I have also successfully tested this change on a bookdown example:

rmarkdown::draft("example.Rmd", template = "make-an-r-package-from-bookdown", package = "litr")


I spread out these example chunks from above to different bookdown pages and got the expected behavior.

Let me know if there are other tests I should consider.

Finally, I wasn't sure whether or not to increment the litr version so I've kept it at 0.9.1.

jacobbien / litr-project

Add new fix for formatting chunks #50

I had to use rmarkdown::render for the changes to display properly