Just to complement: I’m editing some scribble I wrote years ago and I 
completely forgot why I was doing that, but to be able to use `(code:highlight 
…)` in code blocks, I had to add the following line (where `ex-eval` is my base 
evaluator):
```
@interaction-eval[#:eval ex-eval (define (code:hilite v) v) ]
```

sorry if that’s confusing, but I’m confused ;-)

I just want a way to highlight any bits in a code block, in order to bring the 
reader’s attention to specific places (could be binders, whole expressions, 
etc.).

Thanks!

— Éric




> On Aug 22, 2020, at 6:15 PM, Éric Tanter <[email protected]> wrote:
> 
> Hi, 
> 
> From the doc: `(code:hilite datum)` typesets like `datum`, but with a 
> background highlight.
> However, it does not work to highlight a binder, eg: `(letrec ([(code:hilite 
> self) …]) …)`
> Is there another way to highlight a binder?
> 
> Thanks,
> 
> — Éric
> 
> 
> 
> 
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