quarto-dev / quarto-dev/quarto

Visual editor breaks GitHub style callouts in .md files

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#834 5 comments 0 reactions 0 assignees View on GitHub

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bug visual-editor
Dominant language
TypeScript
Stars
645
Forks
62
Avg merge
17h 42m
Merged PRs (30d)
13

Description

Bug description

GitHub flavored markdown uses callouts like this:

>[!TIP]
>Callout text

If you have one of these in a .md document and switch to the visual editor it changes it to:

> \[!T
> IP\] Callout text
Steps to reproduce

In RStudio or Positron, create a .md document, paste in:

>[!TIP]
>Callout text

Then switch to visual mode and back to source mode.

Actual behavior

No response

Expected behavior

I'm not sure exactly why it recognizes that spot as a line break, but if it's not a bug per se, it would be nice to have a way to exempt things like this from auto-formatting by the visual editor.

Your environment
  • IDE: RStudio Version 2025.09.1+401 (2025.09.1+401)
  • OS: macOS 15.6.1 (24G90)

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the round trip in a .md document using the GitHub callout example, switching from source mode to the visual editor and back. Start by locating the visual editor's Markdown formatting path; done means the callout syntax remains unchanged after the round trip, or an explicit exemption is provided.

Written by the indexing model from the issue text.

Assessment

Tech stack
markdown, typescript
Domain
documentation
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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