normalize

# File lib/rdoc/markup/verbatim.rb, line 13
  def normalize
    parts = []

    newlines = 0

    @parts.each do |part|
      case part
      when /\n/ then
        newlines += 1
        parts << part if newlines <= 2
      else
        newlines = 0
        parts << part
      end
    end

    parts.slice!(-1) if parts[-2..-1] == ["\n", "\n"]

    @parts = parts
  end