From: Mark Thomas <mark@...>
Date: 2009-04-30T07:15:03+09:00
Subject: Re: Can this code be more succinct

I can't help but think this could be wrapped up in a nice, neat case
statement that is perhaps not more succinct but more readable.

  case arg = ARGV[0]
  when /^os$/
    sym = arg.downcase
  else
    abort "ERROR: invalid arg #{arg}"
  end

but I'm not sure whether the number of args check can be handled
inside the case. I tried a 'when ARGV.size > 1' but you can't put a
full expression in a when statement.