Clojurians Log v2

Instaparse is, I believe, a scannerless parser, meaning it is more powerful than a scanner (it can construct parse trees, not just return a stream of tokens), and also skips the intermediate step of scanning input into a stream of tokens and then build parse trees out of the stream of tokens

So I am not sure why you would use it to construct a scanner

Fair enough

Are you aware of some scanner generator library? Or should I take this as an opportunity to write a scanner generator myself, perhaps even with macros if possible?