# File lib/facets/yore/builderobject.rb, line 82
  def method_missing( op, *a, &b )
    if b
      @stack << @buffer
      @buffer = ''
      @explict ? b.call : instance_eval(&b)
      r = @buffer
      @buffer = @stack.pop
      @buffer << builder_call(op, r, *a, &b)
    else
      @buffer << builder_call(op, *a, &b)
    end
  end