Is there any test configuration exclude no specified code block?

[sshplendid]

I'm really grateful to all of mdbook maintainers.

When mdbook tests documents, it does even plain code block.
I know base rule is testing not specified code block.
I think It's good feature to enable not specifed code block with configuration.
like this:

# book.toml
[test]
    exclude-plain-code-block: true # If this is true, test command exclude not specified code block.

[uint]

Funnily, code blocks marked rs don't get tested.

It looks to me like what happens is this: the book source is run through the links preprocessor, the processed files get dumped in a temporary folder with the same directory structure as the source and then run through rustdoc --test.

Here's the relevant code for anyone interested.

Since we probably don't want to change the behavior of rustdoc, would the appropriate workaround be to add some meaningless attribute to code blocks without one (like none?) before we run them through rustdoc? And while we're at it, expand rs to rust?

[ehuss]

I think it would probably be better to add an option to rustdoc to set the default language (rust-lang/rust#59867). Trying to rewrite the markdown would be tricky (would need to parse and transform the original text, and indented code blocks do not have a way to set the language).

I would also prefer to not add language aliases. That could get tricky with highlight.js.