From: Thomas Hafner <thomas@...>
Date: 2007-04-09T08:10:06+09:00
Subject: class << Foo; include Foo; end

Hello,

how should I group some stateless functions into a module and use them
in a very simple way without littering the namespace? E.g. if the
module is ``Foo'' with at least one function foo, then I'd like to use
that module in a way as simple like that:

  require 'Foo'
  puts Foo.foo("world")

The first solution that I've found is to write Foo.rb like follows:

  module Foo
    def foo(s)
      "Hello, #{s}\n"
    end
  end

  class << Foo
    include Foo
  end

Is that Ok? Or is there even a simpler way?

Regards
  Thomas