# -*- coding: utf-8 -*-
 #+TITLE: Design Patterns in Ruby
 #+AUTHOR: Mathias Huber
 #+Email: mhuber@linux-magazin.de

 #+OPTIONS: toc:nil reveal_overview:nil
 #+OPTIONS: num:nil
 #+OPTIONS: reveal_keyboard:t
 #+REVEAL_TRANS: linear
 #+REVEAL_THEME: sky
 #+REVEAL_HLEVEL: 2

 * Design Patterns
 ** Principles
 - Do not reinvent the wheel
 - Names for prepacked solutions
 - 23 patterns
 - middle ground
 ** Applying Design Patterns to Ruby
 *** Internal Iterator
 #+BEGIN_SRC ruby
 a = [1,2,3,4]
 a.each {|x| puts x}
 #+END_SRC
 *** External Iterator
 [...]