Csc 4330/6330, Programming Language Concepts (Summer 2020)
Project 1 Sample Run
macbook-pro:lisp raj$ python3 Lisp.py
LISP: 34;
The value is 34.0
LISP: (+ 20 30);
The value is 50.0
LISP: (/ 9 (- 2 2));
EVALUATION ERROR: Divide by 0!
LISP: (* (+ 1 2) (/ 8 4));
The value is 6.0
LISP: (* (car (2 4 (+ 2 4) 8)) (/ 27 9));
The value is 6.0
LISP: (+ (car (2 3 4)) (car (cdr (cdr (9 8 7 6)))));
The value is 9.0
LISP: (+ 2 3 4);
SYNTAX ERROR
LISP: (* (car 4) 22);
SYNTAX ERROR
LISP: (+ 3 (car (cdr (cdr (cdr (1 2))))));
CDR of empty list Error!
LISP: (cdr (1 2 3 4));
The value is (2.0 3.0 4.0)
LISP: (cdr (cons (+ 2 3) (4 5 6)));
The value is (4.0 5.0 6.0)
LISP: (cdr (cdr (1 2 3 4)));
The value is (3.0 4.0)
LISP: (cdr (cdr (3 4)));
The value is ()
LISP: (cdr (cdr (3)));
CDR of empty list Error!
LISP: (let ((x 10) (y (+ 25 (car (20 30)))) (z (+ 10 23))) (+ x (car (y 20 z))) );
The value is 55.0
LISP: (let ((x 2)(y 3)) (+ (* x 4) (*y 3)));
The value is 17.0
LISP: (let ((x 2)(y 3)) (+ (* x 4) (* z 3)));
EVALUATION ERROR: Uninstantiated Variable z
LISP: (let ((x 2)(y 3)) (let ((x 10)(z 20)) (+ x (+ y z))));
The value is 33.0
LISP: (car (cdr (cdr (1 2))));
Cannot evaluate CAR of EMPTY List!
LISP: exit;