Perl parser and formatter for RFC 2253 style DN strings

 X500::DN handles X.500 DNs (Distinguished Names). Currently, it parses DN
 strings formatted according to RFC 2253 syntax into an internal format and
 produces RFC 2253 formatted string from it.
 .
 X500::RDN handles X.500 RDNs (Relative Distinguished Names). This is a
 supporting module for X500::DN.