Correct Input

Started by scottmaccal, June 04, 2009, 05:37:55 AM

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scottmaccal

Hi all,



I'm trying to verify correct input. I want to make sure that the user either inputs yes or no before the program continues. How would this best be accomplished? So far I this code fragment:


(print "yes or no")

(set 'answer (read-line))

# WAS THE ANSWER YES OR NO?

(if (= answer "yes")
  (print "yes "))

(if (= answer "no")
  (print "no"))
Whether gods exist or not, there is no way to get absolute certainty about ethics. Without absolute certainty, what do we do? We do the best we can. --Richard Stallman

scottmaccal

#1
Hi all,



Never mind. Solution found. I must have taken stupid pills this morning.
Whether gods exist or not, there is no way to get absolute certainty about ethics. Without absolute certainty, what do we do? We do the best we can. --Richard Stallman