Nester nests a module or class into another module.

gistfile1.rb

class Nester
  def initialize
		@checklist = []
	end

	def nest(source, target, source_sym = nil)
		if source.is_a?(Module)
			source_sym = source.name.split("::").last.to_sym if source_sym.nil?
			if source.is_a?(Class)
				kls = source.clone
			else
				mod = Module.new
				mod.send(:include, source)
			end
				t = kls || mod
				target.send(:const_set, source_sym, t)
				source.constants.each{|sym|
					s = source.send(:const_get, sym)
					unless @checklist.include?(t)
						nest(s, t, sym)
						@checklist.push(t)
					end
				}
		else
			target.send(:const_set, source_sym, kls)
		end
	end
end