Instant.cf

Prog. Program ::= [Stmt] ;
SAss. Stmt ::= Ident "=" Exp;
SExp. Stmt ::= Exp ;
separator Stmt ";" ;

ExpAdd.            Exp1   ::= Exp2 "+"  Exp1 ;
ExpSub.            Exp2   ::= Exp2 "-"  Exp3 ;
ExpMul.            Exp3   ::= Exp3 "*"  Exp4 ;
ExpDiv.            Exp3   ::= Exp3 "/"  Exp4 ;
ExpLit.            Exp4   ::= Integer ;
ExpVar.            Exp4   ::= Ident ;
coercions Exp 4;