Rewrite simple ruby function to use a block
You can define Dwg's initializer to take a block, and then yield to that block with instance_eval, like so:
class MyClass def initialize(name, &block) @name = name instance_eval &block end def show_name puts 'My name is ' + @name endendMyClass.new('mud') do show_nameend# >> My name is mudFor more information, see the "Blocks for Interface Simplification" section in the recently Creative-Commons-licensed Chapter 2 of Gregory Brown's excellent Ruby Best Practices book. (Its author and publisher are gradually CCing the entire thing, but you can of course still buy a copy to support the work. The iPhone edition is particularly affordable.)