Correct Input
Posted: Thu Jun 04, 2009 12:37 pm
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:
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:
Code: Select all
(print "yes or no")
(set 'answer (read-line))
# WAS THE ANSWER YES OR NO?
(if (= answer "yes")
(print "yes "))
(if (= answer "no")
(print "no"))