class RDoc::AnyMethod

def markup_code
  return '' unless @token_stream
  src = ""
  @token_stream.each do |t|
    next unless t
    #        style = STYLE_MAP[t.class]
    style = case t
            when RDoc::RubyToken::TkCONSTANT then "ruby-constant"
            when RDoc::RubyToken::TkKW       then "ruby-keyword kw"
            when RDoc::RubyToken::TkIVAR     then "ruby-ivar"
            when RDoc::RubyToken::TkOp       then "ruby-operator"
            when RDoc::RubyToken::TkId       then "ruby-identifier"
            when RDoc::RubyToken::TkNode     then "ruby-node"
            when RDoc::RubyToken::TkCOMMENT  then "ruby-comment cmt"
            when RDoc::RubyToken::TkREGEXP   then "ruby-regexp re"
            when RDoc::RubyToken::TkSTRING   then "ruby-value str"
            when RDoc::RubyToken::TkVal      then "ruby-value"
            else
              nil
            end
    text = CGI.escapeHTML t.text
    if style
      src << "<span class=\"#{style}\">#{text}</span>"
    else
      src << text
    end
  end
  add_line_numbers src
  src
end