Restriction of injection grammars for specific filename

[anticultist]

I can not find a way to restrict injected syntax highlighting to specific files like foo.json.

In my use case I want extend syntax highlighting in dictionary string values of specific JSON files with a fixed file name. The syntax highlighting works fine but it is also enabled in other JSON files I do not want them to be enabled. Is there a way to restrict injected syntax highlighting to a specific file name or do I have to create a language server?

[RedCMD]

Currently there is no easy way
Either create a language server and use semantic highlighting (which won't have bracket highlighting support)
or
create a new languageId; allowing you to define "filenamePatterns"
Include source.json and then you can inject into your languageId

[anticultist]

Thanks for the quick response!

I try to stick with the json languageId because I want to keep other nice features like json schema support. I suppose it is only enabled for the json languageId.
So it sounds like I have to go the language server route, which I thought I could try to avoid.
Is there any chance that restriction of injected grammars for specific filename could be considered as a new feature?

[RedCMD]

I am trying to get this through #198583 to enable schema support etc for other json languageId's

[aeschli]

Using semantic highlighting sounds like the best approach to me.

[aeschli]

Closing the issue. No plans to make injections per file name.