Two blank lines within a fenced code block terminates ordered list and breaks code block

[epbarger]

Subject of the issue

Fenced code blocks within a number bullet point break if they contain more one new-line in a row.

Your environment

• OS: macOS Mojave 10.14.4
• Packages: @mdx-js/mdx@1.6.4, via "gatsby-plugin-mdx": "^1.2.6"
• Env: yarn 1.22.4, gatsby 2.23.1

Steps to reproduce

Nest a fenced code block under a number bullet point, with two blank lines in a row within the code block. One blank line does not cause this issue.

1. Test
   ```
   broken


   example
   ```

Plain text after the numbered bullet point

Expected behaviour

I would expect this to work fine, parsing the code block correctly and keeping the entire block nested under the numbered bullet point.

Actual behaviour

The second new line appears to cause the parser to end the bullet point, breaking the code block. The ending triple backticks will then start a new code block, causing chaos with the rest of the page

[wooorm]

@epbarger Could you check if this is solved in MDX@2? (see the open issues about that for more info). That’s a big rewrite that might solve this. And there’s another change coming to that’d definitely solve this, by using the new micromark parser in remark

[wooorm]

Hi all! I’m going to close this as it landed on the main, the (now default) branch we’re using to gear up to the MDX@2 release.

The reason is so that it’s more clear which issues still need to be solved already and don’t require further work.

Expect another next release soonish, which might include it, or maybe it’s already released as a beta!

For more info, see #1041.