Markdown Code Block Fold Support

This extension adds folding ranges for structured content inside Markdown fenced code blocks.

Current scope

• Supports json, jsonc, javascript, typescript, jsx, tsx, css, scss, less, yaml, yml, html, xml, svg, vue, and svelte fenced blocks inside Markdown
• Keeps the folding engine language-pluggable for more embedded languages later
• Works alongside the normal Markdown code fence folding

Usage

Open a Markdown file containing a fenced JSON block such as:

```json
{
  "outer": {
    "items": [
      {
        "value": 1
      }
    ]
  }
}
```

Then use the normal VS Code folding controls inside the code block.

Configuration

markdownCodeBlockFoldSupport.enabledLanguages

• Default: ["json", "jsonc", "javascript", "javascriptreact", "js", "jsx", "typescript", "typescriptreact", "ts", "tsx", "mjs", "cjs", "css", "scss", "less", "yaml", "yml", "html", "xml", "xhtml", "svg", "vue", "svelte"]
• Controls which fenced languages contribute extra folding ranges in Markdown documents

Development

• npm install
• npm run compile
• Press F5 in VS Code to launch the extension host
• npm test to run the integration test suite
• npm run package to build a .vsix

Release

• Run npm test
• Run npm run package:release
• Commit the generated release-assets/markdown-codeblock-fold-support-<version>.vsix
• Push to main
• When package.json contains a version that does not already have a matching vX.Y.Z tag, GitHub Actions will tag and publish a GitHub Release automatically