The Metacircular Evaluator (Racket Language)

Add support for and and or to your interpreter by modifying mceval.rkt. Be sure your implementation adheres to the R5RS standard. Pay careful attention to how the arguments to and and or are evaluated and the value of the and or or expression-the language standard describes a recursive procedure for evaluating and and or expressions. Also make sure you evaluate each subexpression at most once. You will probably want to use the last-exp?, first-exp, and rest-exps helper functions. Hint: Before you start, think carefully about whether or not and and or must be implemented as special forms. When must a new language construct be a special form?