Allow to use chrome_print on parametrized Rmarkdown document

[cderv]

From a question in the community : https://community.rstudio.com/t/not-able-to-produce-paged-pdf-document-when-trying-to-render-html-paged-rmarkdown-document-using-parameters/80677/2

Current you can render a Rmd file using

pagedown::chrome_print("reprex.Rmd")

but the included rendering does not accept params as in :

rmarkdown::render("reprex.Rmd", params=list(test="html"))

@yihui @RLesur How about we support that by

• taking ... in chrome_print to pass to render : pagedown::chrome_print("reprex.Rmd", params = list(test="html"))
• or by adding a render_args argument taking a list to match render argument ? pagedown::chrome_print("reprex.Rmd", rmd_args = list(params = list(test="html")))

[yihui]

The chrome_print() function actually also accepts .html input, so this should work:

pagedown::chrome_print(
  rmarkdown::render("reprex.Rmd", params=list(test="html"))
)

I'm fine with adding ... or render_args, but it doesn't seem to save a lot of typing effort. The solution I mentioned is totally flexible and you can use any arguments of rmarkdown::render().

[cderv]

Yes this is what I answered in the community post

output <- rmarkdown::render("reprex.Rmd", params=list(test="html"))
pagedown::chrome_print(output)

That works well.

We could also just document that explicitly and consider it simpler to maintain that adding a new parameter to do the same.

[yihui]

Okay. I just added more documentation. Thanks!