From: Jim Freeze <jim@...>
Date: 2001-11-09T03:03:13+09:00
Subject: [ruby-talk:24669] Is their a more succinct way to do this?

Hi:

I have a program that takes several parameters from the command line.
I need to test these parameters that:
 1) they exist
 2) they are not nil
 3) they are not empty

So, in my code I have
  if !defined?(param) || param.nil? || param.empty?
    # err
  end

Is there a more compact way to test for this?
I thought about making a function for this but
I'm not sure how to pass an undefined param to a function.

Jim



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Jim Freeze
jim@freeze.org
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