# File lib/rdoc/markup/to_html.rb, line 68
  def initialize markup = nil
    super

    @code_object = nil
    @from_path = ''
    @in_list_entry = nil
    @list = nil
    @th = nil

    # external links
    @markup.add_special(/((link:|https?:|mailto:|ftp:|irc:|www\.)\S+\w)/,
                        :HYPERLINK)

    # internal links
    @markup.add_special(/rdoc-[a-z]+:\S+/, :RDOCLINK)

    # and links of the form  <text>[<url>]
    @markup.add_special(/(((\{.*?\})|\b\S+?)\[\S+?\])/, :TIDYLINK)

    init_tags
  end