Writing a custom injection for specific language

[wingyplus]

Is it possible to write a custom injection language to another language? For example, in Elixir, I want to injecting Markdown syntax into moduledoc to highlighting documentation in the code.

[everdrone]

Also interested in overriding language syntaxes with custom highlighting

[artegoser]

https://zed.dev/docs/extensions/languages#code-injections

[everdrone]

What about injections for multiple languages in a single extension? is it possible?

[artegoser]

It's working fine for me

[artegoser]

Or maybe I misunderstood. You should probably just create a subdirectory for each language in the languages folder and write injections.scm there. If you think about it logically, it should work

[everdrone]

I wanted to create an extension to highlight TODO comments, not for one specific language but virtually all supported ones
It's cumbersome to implement a config.toml and a different overrides.scm for each language supported by zed, instead having a global overrides.scm would pretty much solve the problem instantly

[itahol]

Hey, in my job I work in typescript, where we use both an ORM and raw queries for our DB.
I would like to have a go at injecting SQL in the raw queries strings, and have it be done based on the content of the string and not some kind of tagging (so for example match a regex of "select .* from .*" for keeping it simple).

I could add it to the language injections file, but I think it's not something that should be in the base language injections.scm file as it might not be something that everyone is interested in.
Therefore, it seems like a good case for an extension :)

Is it possible to add to a language injections without registering a new grammer/language?
I couldn't really understand from the docs, if someone has experience with it I would appreciate it!

I'm currently AFK but when I have the chance I'll try writing it naively and see if it works.