Markdown: silently dropping ~~~ code fences

[Aratramba]

Affected Packages

@tiptap/markdown

Version(s)

3.19.0

Bug Description

The @tiptap/markdown extension silently drops code blocks that use tilde fences (~~~), which are valid CommonMark and GFM syntax. Backtick fences (```) are parsed correctly.

This renders nothing at all:

~~~
code block
~~~

Tildes are already valid input:

tiptap/packages/extension-code-block/src/code-block.ts

Line 73 in 253ca1c

export const tildeInputRegex = /^~~~([a-z]+)?[\s\n]$/

Looks like we need to update it here:

tiptap/packages/extension-code-block/src/code-block.ts

Line 158 in 253ca1c

if (token.raw?.startsWith('```') === false && token.codeBlockStyle !== 'indented') {

Browser Used

Chrome

Code Example URL

https://codesandbox.io/p/sandbox/tender-sara-9m5jr2

Expected Behavior

I expect tilde fenced code blocks to render the same as backtick fenced code blocks.

Additional Context (Optional)

No response

Dependency Updates

• Yes, I've updated all my dependencies.