Executing `vscode.executeFormatDocumentProvider` with HTML files can return end range exceeding file length

[allisonchou]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.76.0-insider
• OS Version: Windows 11

Using the built-in command vscode.executeFormatDocumentProvider (spec'd here) using an HTML URI can return a range that exceeds the length of the source file.

For example, invoking the above command on a completely empty HTML file will return a range of (startPosition: (0, 0); endPosition: (1, 0)) despite there only being one line in the file. This has caused several bugs to be filed on the Razor team. We've implemented a workaround for now, but we hope to have this issue formally fixed in the near future.

[jrieken]

These commands return the data mostly as provided by extensions - no much cleanup or other tweaks. The editor, before applying, sanitises and minimises edits only later

[allisonchou]

@jrieken From my understanding, the HTML experience in VS Code is built-in and is not provided by a specific extension. Is that assumption incorrect?

[jrieken]

Yes and no. HTML is also an extension but it is bundled with the product (that's the only special thing about it)

[allisonchou]

@jrieken Gotcha, thanks for the clarification. I think perhaps this issue should be moved to the microsoft/vscode-html-languageservice repo then? Would you be able to transfer it?

[allisonchou]

I ended up just creating another issue in the microsoft/vscode-html-languageservice repo - microsoft/vscode-html-languageservice#153. I'll close this one out, thanks!