Formatting with JSON default formatter is not available

[m-schwob]

Since this extension does not provide a formatting service, I tried to use the default VsCode JSON formatter.

I added the following to setting.json and it still does not work:

    "editor.defaultFormatter": "vscode.json-language-features",
  },```
  
  maybe the extension blocks the formatting services? 

[pedro-w]

Hi, It's not blocked deliberately. I've had this before - basically I want VSCode to do all the normal JSON things plus a little bit extra for tmlanguage (and the same for YAML), but I can't figure out how to do this. I'll have another think but I am really not a VScode expert and the way forward is not obvious to me!

[RedCMD]

the built-in JSON extension only activates on the languageId; json however this extension uses json-tmlanguage

you'll be able to use the new jsonLanguageParticipants feature in the next release (currently in Insiders) https://github.com/microsoft/vscode/pull/198583

[pedro-w]

@RedCMD that's good news, hopefully I will be able to get things working that way. Thanks!

[pedro-w]

@RedCMD I added some jsonLanguageParticipants-related things to package.json and it seems to work, at least, I can format tmLanguage.json files in the editor.

I had a few questions but unfortunately your PR, https://github.com/microsoft/vscode/pull/198583 is now locked. If you wouldn't mind:

• What version was this implemented for (ie. what XX should I put in my engines: {vscode: "^1.XX"}
• Is it possible to allow comments in the json, and if so, how?

Thanks!

[RedCMD]

VSCode engine 1.87.0

VSCode's JSON TextMate engine doesn't support C style comments at all however you can disable the warning message via an option in a schema

{
  "allowComments": true,
  "allowTrailingCommas": true
}