# File lib/rdoc/context/section.rb, line 86
  def extract_comment comment
    if comment.text =~ /^#[ \t]*:section:.*\n/ then
      start = $`
      rest = $'

      comment.text = if start.empty? then
                       rest
                     else
                       rest.sub(/#{start.chomp}\Z/, '')
                     end
    end

    comment
  end