Code block invalid output with custom language input

[erictuvesson]

Markdown Input:

Expected Output:

<pre><code class="json language-json">{
    "custom": true
}
</code></pre>
<pre><code class="json language-json">{
    "custom": false
}
</code></pre>

Actual Output:

<p>```json custom data
{
    "custom": true
}</p>
<pre><code>
</code></pre>
<p>json
{
    "custom": false
}
```</p>

Extra

Removing custom data from the markdown will solve the issue, but it doesn't allow for code block extensions.

[SyntaxRules]

Good catch, this kind of metadata is allowable, at least in GFM: https://github.github.com/gfm/#example-113

[tivie]

yeah, showdown doesn't allow spaces after the code block delimiter.

[tivie]

Should be fixed in commit 6711425

[Philmod]

Hi! Was this change released?

I have the issue when there is a space after the language: "```python ". I'm using the 2.1.0 version of showdown.

yarn list --pattern showdown
yarn list v1.22.19
├─ @types/showdown@2.0.0
├─ showdown-highlight@3.1.0
└─ showdown@2.1.0

Edit: that commit change is indeed in your main branch: https://github.com/showdownjs/showdown/blob/master/dist/showdown.js#L3404

But not in the 2.1.0 release code.

Thanks!

[Philmod]

@tivie Any help on ^ ?