Hello I'm currently taking a lecture in the topic of lexical analyzers where we focus on flex. flex has a thing called Starting Conditions where you can basically set the parser into a different state. This is useful for things that can't be easily defined using a regex like multi line comments.

Is this or something similar currently supported by flex?

I would think that it would be a bit of work but not two difficult to implement. If it's not supported right now would you think that that is something interesting to have. I could look into implementing it and also learning some stuff about macros? 🙃