Custom language definition works except in Markdown fences

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1

I have built my first language definition for Nova for a toy programming language called ObjoBasic. The definition appears to be working as expected in the editor when I set the document type to “ObjoBasic” - Nova correctly highlights tokens, etc.

However, if I create a Markdown document and put in a code fence like this:

```objobasic
Some code
```

Nova not only doesn’t highlight the ObjoBasic in the code fence but the console throws several identical errors saying "[objobasic] Error parsing: The language objobasic could not be loaded".

I’m not sure what I’ve done wrong in my definition to cause this. It’s frustrating because I appear to be very close to getting the definition to work but it’s important to me that the highlighting also be able to work within Markdown documents.

2

If your language is a legacy (regex) grammar, it won’t be possible to use it within code fences. Our Markdown syntax is based around Tree-sitter, and fences only support injection of other Tree-sitter languages. (For more info on injections, see here.)

If your language is indeed using Tree-sitter, check to make sure you have an injection expression defined in your syntax file (see also the above link on injections).

3

Bingo. It’s a legacy regex grammar. That’ll be why.

Shame but thank you for clarifying.