Below is a grammar for expressions involving operator 4- and integer or floating-point operands. Floating-point numbers are distinguished by having a decimal point.  E-+E + T | T T —» nu m . nu m | nu...

Below is a grammar for expressions involving operator 4- and integer or floating-point operands. Floating-point numbers are distinguished by having a decimal point.

E-+E + T | T T —» nu m . nu m | nu m


a) Give an SDD to determine the type of each term T and expression E.

b) Extend your SDD of (a) to translate expressions into postfix notation. Use the unary operator intToFloat to turn an integer into an equivalent float.