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beautiful-racket/beautiful-racket-demo/algebra-demo/grammar.rkt

6 lines
143 B
Racket

#lang brag
top : (fun | app)*
fun : /"fun" ID /"(" ID [/"," ID] /")" /"=" expr
6 years ago
expr : ID /"+" ID | app
app : ID /"(" (ID | INT) [/"," ID] /")"