collect_first_comment

# File lib/rdoc/parser/ruby.rb, line 225
  def collect_first_comment
    skip_tkspace
    comment = ''
    comment.force_encoding @encoding if @encoding
    first_line = true
    first_comment_tk_class = nil

    tk = get_tk

    while TkCOMMENT === tk
      if first_line and tk.text =~ /\A#!/ then
        skip_tkspace
        tk = get_tk
      elsif first_line and tk.text =~ /\A#\s*-\*-/ then
        first_line = false
        skip_tkspace
        tk = get_tk
      else
        break if first_comment_tk_class and not first_comment_tk_class === tk
        first_comment_tk_class = tk.class

        first_line = false
        comment << tk.text << "\n"
        tk = get_tk

        if TkNL === tk then
          skip_tkspace false
          tk = get_tk
        end
      end
    end

    unget_tk tk

    new_comment comment
  end