Lib.rs

espy-ears (parser)

the parser consists of two major contexts: the expression and the block. expressions define a sequence of operations that produce a value, while blocks are capable of binding expressions to identifiers and disrupting control flow. an espy program should be interpreted as a "block" at its top level.

block parsing is "infallible"; instead of returning Result types, most ast nodes contain "diagnostics" fields to collect errors without giving up on parsing.