Disable urls during Rmarkdown::render() in RStudio?

[hadley]

e.g. create an .Rmd containing this code and render it with cmd + shift + K

```{r}
cli::cli_abort("{.url https://posit.co}")
```

The issues panes doesn't support ANSI formatting:

OTOH the output pane does:

[gaborcsardi]

Since the same output goes to both places we can either have no links anywhere, or maybe we can add links support to the issues panel, or at least make the issue panel drop ANSI sequences?

[hadley]

I think no links might be the safer choice.

[mikeroswell]

Glad this is on the radar! yihui/knitr#2234 (comment)

[cderv]

@mikeroswell beat me to it while I was writing this message. Here it is anyway

We have an occurence of this in yihui/knitr#2234 with dplyr deprecation warnings as lifecycle is using urls now in the deprecation message

For HTML outputs, it just show undesired character in the message, but for PDF, it prevents rendering because of those unknown special characters still present.

[hadley]

Looking at the issue from knitr, that might be actually be a different problem? Because there the escapes are appearing in the document.

[gaborcsardi]

I think they should be the same, the R process that runs knitr runs "in the render pane", so hyperlinks were turned on. Now they are off.

[hadley]

I thought we used different heuristics inside an Rmd, but maybe I'm imagining that?

[gaborcsardi]

We are doing that for colors, yeah. Probably the simplest is that if there are no colors, then we also turn off the hyperlinks.

[pg320]

Any news on a fix for this? Compile (R/Rmarkdown) document to PDF currently won't run because of the unicode characters.

[gaborcsardi]

It is already fixed. If you still have issues, make sure you use cli from this repository. You can also turn off links by setting the cli.hyperlink option to FALSE or the R_CLI_HYPERLINKS environment variable to false.

[pg320]

Could you guide me on installing the package from GitHub? I've tried using the devtools and remotes package, but they fail as cli is already in ise

[gaborcsardi]

Try this:

install.packages("pak", repos = sprintf(
  "https://r-lib.github.io/p/pak/stable/%s/%s/%s",
  .Platform$pkgType,
  R.Version()$os,
  R.Version()$arch
))
pak::pkg_install("r-lib/cli")

[jennybc]

Just to add more color, the change motivated by this seems to have also fixed a problem in devtools::build_rmd(), where I was seeing ANSI escapes in the rendered product.