Flutterby™! : Taking the time this week to do some

Taking the time this week to do some Rust learning, and figured I'd do so with moving a little parsing toolkit I wrote for some work projects from Objective-C to Rust.

So I'm now in the "what's the idiomatically correct way to compare and classify characters from strings?" stage, and... I'm not having warm fuzzy vibes right now.

I *think* the answer is to process everything as bytes with str references? And just assume that > 127 is identifier territory?