hello_newline.rb

loop do
  print 'Listening... '
  utterance = gets
  command = utterance.strip.sub(/\.$/, '').downcase.split(/\s+/).first
  
  case command
  when 'say'
    puts utterance.sub(/^say/i, '')
  when 'exit', 'quit'
    puts "Exiting..."
    exit
  else
    puts "Command not understood: #{command}"
  end
end