gistfile1.rb

# OptionsProxy creates a proxy object with attribute accessors
# and defaults.

options = OptionsProxy.new(:fancy, :name, {
  :fancy => true
})

options.fancy # => true
options.name # => nil

options.name = 'Dirt'
options.name # => 'Dirt'
options.fancy = false

options.set {:name => 'Gold', :fancy => true}
options.name # => 'Gold'
options.fancy # => true

# It would also have a factory interface

options = OptionsFactory do |o|
  o.fancy true
  o.name
end

options # => equivalent to the above example