Curious what you're parsing APC escapes for.

Its a fair question (giving their long obsolescence), I'm trying to parse escape codes to use for a preview feature in an application I am writing and would, preferably, like to have support for the Kitty Graphics Protocol which requires the use of APC to send images to the terminal.

Yeah that's fair. That shouldn't be difficult to add tbh, it mainly doesn't exist yet because I've had no use for it so far.

Are you interested in implementing this yourself?

Indeed I would be interested in implementing it myself, I'll have a further look into the code and try and figure out how it works. My one concern is that the action/state enums seem to be saturated already? I'll look into it later!