From: Brian Candler <b.candler@...>
Date: 2010-12-13T18:59:30+09:00
Subject: Re: Deaf Grandma

danielj wrote in post #719787:
> Is there an easier way?

Remember to set your bye counter to zero in every case except where 
'BYE' is typed, to ensure three BYE's in a row are required. You can use 
'next' to skip straight to the top of the next iteration, which means 
you can put a single bye=0 at the end of the loop.

Also, I think there is some ambiguity in the original problem 
description: what should happen if what you type contains neither upper 
nor lower case letters? (e.g. empty text or only punctuation 
characters?). In the code below I've let grandma have a snooze. I also 
use the 'case' statement to match the response against a series of 
values and regexp patterns.

puts "Hey Sonny, it's your Grandma! How are you?"
bye = 0
loop do
  case gets.chomp
  when "BYE"
    bye += 1
    break if bye >= 3
    next
  when /[a-z]/
    puts "HUH?! SPEAK UP, SONNY!"
  when /[A-Z]/
    puts "NO, NOT SINCE #{rand(21)+1930}!"
  else
    puts "ZZZ"
  end
  bye = 0
end

But to be honest, I'd say that if...elsif...elsif...end is equally good.

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