(markdown) no support for 4 backticks to escape code including 3 backticks

[cjh9]

Highlight version: 9.17.0
Built from source, last commit 701184e

Input:

code = "Code
================================
``` py
a = 'This is a code block in python'
```
`this is inline code` in a paragraph

Questions
================================
"

Output:

hljs.highlight('markdown', code).value

Results in output:

"<span class="hljs-section">Code
================================</span>
<span class="hljs-code">```</span> py
a = 'This is a code block in python'
<span class="hljs-code">```
`this is inline code` in a paragraph

Questions
================================
</span>"

[joshgoebel]

Our rules say that the end quotes MUST start on a new line (for triple quotes). Is this not correct?

[cjh9]

In this case I'm surrounding the block with four backticks, and explaining markdown:

```` md
Code
================================
``` py
a = 'This is a code block in python'
```
`this is inline code` in a paragraph

Questions
================================
````

But only the above goes into the highlighter.

[joshgoebel]

I'd say the real problem is we don't support four backticks... so those are probably just registering as jumping in and out of normal strings, which is never going to work with. :-)

[joshgoebel]

In this case I'm surrounding the block with four backticks, and explaining markdown:

Is there someplace I can find this 4 backpack syntax documented?

[hlovdal]

The four (N+1) backticks syntax is supposed to make it easier to embed code with three (N) backticks inside.

https://bookdown.org/yihui/rmarkdown/markdown-syntax.html
https://github.github.com/gfm/

[joshgoebel]

Thanks, I've since used them. :-) This should work find now since #2382.