Input does not match the condition

Question

I'm trying to get out of a while loop when the input is this:

BYE
BYE
BYE

And not this:

BYE BYE BYE

The code is:

my_reply = ((word1 = gets) + (word2 = gets) + (word3 = gets))

while my_reply != ((word1 == 'BYE') and (word2 == 'BYE') and (word3 == 'BYE'))
    puts 'Grandma: ...'
    my_reply = ((word1 = gets) + (word2 = gets) + (word3 = gets))
end

puts 'Grandma: ' + 'Fine, sonny, don\'t hang out with your aging grandmother!'.upcase

which is not working. I need help.

http://stackoverflow.com/q/3955688/38765 has more information on how to debug your scripts. — Andrew Grimm, Jun 14 '11 at 23:36

score 1 · Accepted Answer · answered Jun 14 '11 at 09:03

gets also returns the line feed and carriage return "\r\n", e.g. "BYE\r\n". This means you have to strip them out before comparing to other strings. (see String.strip)

while [gets, gets, gets].map(&:strip) != ['BYE', 'BYE', 'BYE']
  puts 'Grandma: ...'
end

puts 'Grandma: ' + 'Fine, sonny, don\'t hang out with your aging grandmother!'.upcase

score 0 · Answer 2 · answered Jun 14 '11 at 09:00

0

The input from gets includes a newline (BYE\n). Do gets.chomp to get rid of it.

answered Jun 14 '11 at 09:00

steenslag

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score 0 · Answer 3 · answered Jun 14 '11 at 09:03

I am not quite sure, but may be you are trying to do something like:

bye_3 = Array.new(3, "BYE")
until Array.new(3){gets.chomp} == bye_3
  puts "Grandma: ..."
end
puts 'Grandma: ' + 'Fine, sonny, don\'t hang out with your aging grandmother!'.upcase

Array.new(3, "BYE") is the same as ["BYE", "BYE", "BYE"], and Array.new(3){gets.chomp} is the same as [gets.chomp, gets.chomp, gets.chomp].

Input does not match the condition

3 Answers3