getterz n setterz

module Varz
  module GetSet
    def initialize(init = {})
      @variables = init
    end
    
    def get(key)
      @variables[key] || "Bang!"
    end

    def set(key, value = nil)
      @variables[key] = value if value
    end
    
    def to_a
      @variables.inject([]) do |arr, v|
        arr << "#{v.first} => #{v.last}"
      end
    end

    def to_s
      to_a.join(", ")
    end
  end
end

module Varz
  class Store
    include GetSet
    
    def [](key)
      get(key)
    end
    
    def []=(key, value=nil)
      set(key, value)
    end
  end
end

vars = {
  :project => "Varz",
  :version => "0.0.2",
  :author => "prz"
}

tree = Varz::Store.new(vars)
tree.set("xfile", "X-File")
tree.set("xfilex")
p tree.get("xfilex")
p tree.get("xfile")
p tree.get(:project)
tree.set(:value, "waaah!!!")
p tree.get(:value)
p tree.get(:project)
p tree.to_a
p tree.to_s
tree[:project] = "Varz::Base"
p tree[:project]