# File lib/rbot/messagemapper.rb, line 27
  def mm_cleanup
    new = self.source.gsub(/(^|[^\\])((?:\\\\)*)\(([^?])/) {
      "%s%s(?:%s" % [$1, $2, $3]
    }.sub(/^\^/,'').sub(/\$$/,'')
    Regexp.new(new, self.options)
  end