From: Jacob Fugal <lukfugl@...>
Date: 2005-12-22T09:13:36+09:00
Subject: Re: String > Integer Conversion Problem

On 12/21/05, Timothy Hunter <cyclists@nc.rr.com> wrote:
> The Integer() method raises ArgumentError if given an empty,
> non-numeric, or otherwise non-well-formed string.

On 12/21/05, James Edward Gray II <james@grayproductions.net> wrote:
> if ARGV.all? { |n| n =~ /\A\d+\Z/ }
>    puts "Usage..."
>    exit
> else
>    one, two = ARGV.map { |n| Integer(n) }
> end

So could we rewrite this as:

begin
  one, two = ARGV.map{ |n| Integer(n) }
rescue ArgumentError
  puts Usage
  exit
end

?

Jacob Fugal