From: "Paul A." <cyril.staff@...>
Date: 2010-04-30T22:32:59+09:00
Subject: Re: Switching dynamically between methods (inside modules)

Impressive code, thanks Rick Denatale! Thank you too, Robert Dober!  I 
am currently reading your solutions.

Anyway, I don't know if delegation is the best option for my needs. 
Actually, if for instance we update Person class such as:

class Person
  attr_accessor :name

  def initialize(language = nil)
    self.current_language = language
  end

  def method_missing(word, *args)
    @language_center.send(word)
  end

  def current_language=(language)
    @language_center = Language.knowledge_for(language)
  end

  def quit
    self.current_language = nil
  end
end

...and English hash like this:

module Language
  English = {
    :hello => "Hello! My name is #{@name}.",
    :bye => "Bye. (in English language)"
  }
  # ...
}

...then it's hard to access instance variables (and instance methods) 
from person object:

person = Person.new
person.name = "Paul"

person.current_language = :English
person.hello    # => "Hello! My name is ."

Maybe only inheritance can do it, no?  It's tricky :s

Best regards.
P.
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