when using double brackets for code , highlight doesn't work

[jjallaire]

Discussed in #1228

^{Originally posted by ggous June 27, 2022}
Hi,

If I use highlight style:

format:
  html:
    theme: cosmo
  pdf:
    include-before-body: 
        - colors.tex
    documentclass: scrreprt
    code-block-bg: true
    code-block-border-left: "#E9E9E9"
    keep-tex: true
    highlight-style: tango

and use double brackets for python code that I don't want to run:

{{python}}

then the highlight style doesn't work.

Is there any workaround for this?

[mcanouil]

Syntaxes for code that will keep highlighting as described in https://quarto.org/docs/authoring/markdown-basics.html#source-code.

```r
f <- function(x) {
  x^2
}
```


```{.r}
f <- function(x) {
  x^2
}
```

[cscheid]

I'm not sure that's closed. People with {{lang}} because they want their rendering to have {lang} in them. If we can't support that well, then we need the feature to be open until we fix it.

[mcanouil]

Current status which seems to work now

Input	Output
--- format: html --- ```r f <- function(x) { x^2 } ``` ```{.r} f <- function(x) { x^2 } ``` ```{{r}} f <- function(x) { x^2 } ```

Input	Output
--- format: html --- ```python def f(x): return x^2 ``` ```{.python} def f(x): return x^2 ``` ```{{python}} def f(x): return x^2 ```

[cderv]

yes this is supposed to work. FYI this is handled by our custom markdown highlighter for Pandoc Syntax highlighting - we tweak the default markdown.xml and provide it for pandoc rendering with the addition.

it was broken but fixed in 1.7:

• Re-enable change to markdown highlighting from previous quarto version #11643

Also now tested to avoid regression.