Tour of a pattern matcher: core patterns and the AST

Alright! Last time we looked at the mouth of extensible-match and how it chews up patterns in order to make them digestible. Before we take a look into the stomach, 1 we should look at what that chewed-up form of patterns looks like. This is an episode with a bit less how and a lot more what than the last one. I’ll explain and justify the core pattern structure we just got out of the expansion…