From: Phrogz <phrogz@...>
Date: 2007-09-07T06:25:11+09:00
Subject: Re: How do I exit my program at any time?

On Sep 6, 3:15 pm, Helgitomas Gislason <nitrohel...@hotmail.com>
wrote:
> The main point I'm trying to get to here is: "Is there any function that
> I can put at the beginning or the end, that says my program to exit
> whenever I say exit WITHOUT having to put the:
>
> if name == 'exit'
>   exit
> end
>
> at every string I want to have the possibility yo exit from??

  class Object
    def gets( *args )
      result = super
      exit if result =~ /\A\s*exit\s*\z/oi
      result
    end
end

However, instead of monkey-patching the object class (and shadowing)
the Kernel#gets method), I would suggest instead writing your own
method:

  def gets_or_exit
    result = gets
    exit if result =~ /\A\s*exit\s*\z/oi
    result
  end

This gives you the ability to decide if there's a time when you want
to use gets without exiting, and to do additional common work (like
always #chomp the result before returning it).