each_const

# File lib/optparse/version.rb, line 50
  def each_const(path, base = ::Object)
    path.split(/::|\//).inject(base) do |klass, name|
      raise NameError, path unless Module === klass
      klass.constants.grep(/#{name}/) do |c|
        klass.const_defined?(c) or next
        klass.const_get(c)
      end
    end
  end