From: Jacob Fugal <lukfugl@...>
Date: 2006-02-03T02:59:26+09:00
Subject: Re: Chomping and stomping

On 2/2/06, ara.t.howard@noaa.gov <ara.t.howard@noaa.gov> wrote:
>    harp:~ > ruby a.rb < /dev/null
>    a.rb:3:in `chomper': private method `chomp' called for nil:NilClass (NoMethodError)
>            from a.rb:9
>
> nil doesn't like that!  ;-)

Heh, yeah, I glossed over that too. You really need to check the
result of gets before you chomp it. This is the way I'd write John's
original loop (same semantics):

  def chomper
    while xx = gets
      xx.chomp!
      break if xx == 'qq'
      puts "hit me with a squirell!"
    end
    xx
  end

and the way I'd write it for myself (different semantics, mostly same intent):

  def chomped_gets
    (s = gets) and s.chomp
  end

  def chomper
    loop do
      puts "hit me with a squirell!"
      break unless xx = chomped_gets
      return xx if xx == 'qq'
    end
  end

Jacob Fugal