# code from http://www.ruby-doc.org/core-2.0.0/Continuation.html

# Here, the continuation serves as a loop

require "continuation"

arr = [ "Freddie", "Herbie", "Ron", "Max", "Ringo" ]
c = callcc {|cc| cc}
puts c 
message = arr.shift
puts message
c.call(c) unless message =~ /Max/

# Experiment with changing the argument passed to cc.call on the last line.
#  Change it to nothing (nil), to 0, and to "foo". What happens and why?