commandline session /* Reverse polish notation calculator. */ %{ #define YYSTYPE double #include %} %token NUM %% /* Grammar rules and actions follow */ $ 4.2.36 19 519—> bison rpcalc.y rpcalc.y:11.1: syntax error, unexpected end of file $ 4.2.36 20 520—> $ 4.2.36 1 501—> vim la.y $ 4.2.36 2 502—> bison la.y la.y:6.1: invalid …