NAME

Net::LDAP::Filter - representation of LDAP filters

SYNOPSIS

use Net::LDAP::Filter;

$filter = Net::LDAP::Filter->new( $filter_str );

DESCRIPTION

CONSTRUCTOR

new ( FILTER )

Create a new object and parse FILTER.

METHODS

parse ( FILTER )

Parse FILTER. The next call to ber will return this filter encoded.

asn

Return the data structure suitable for passing directly to Convert::ASN1 to encode a filter object.

as_string

Return the filter in text form.

Print the text representation of the filter to FH, or the currently selected output handle if FH is not given.

FILTER SYNTAX

Below is the syntax for a filter given in RFC-2254 http://info.internet.isi.edu/in-notes/rfc/files/rfc2254.txt

filter       = "(" filtercomp ")"
filtercomp   = and / or / not / item
and          = "&" filterlist
or           = "|" filterlist
not          = "!" filter
filterlist   = 1*filter
item         = simple / present / substring / extensible
simple       = attr filtertype value
filtertype   = equal / approx / greater / less
equal        = "="
approx       = "~="
greater      = ">="
less         = "<="
extensible   = attr [":dn"] [":" matchingrule] ":=" value
               / [":dn"] ":" matchingrule ":=" value
present      = attr "=*"
substring    = attr "=" [initial] any [final]
initial      = value
any          = "*" *(value "*")
final        = value
attr         = AttributeDescription from Section 4.1.5 of RFC-2251
matchingrule = MatchingRuleId from Section 4.1.9 of RFC-2251
value        = AttributeValue from Section 4.1.6 of RFC-2251


Special Character encodings
---------------------------
   *               \2a, \*
   (               \28, \(
   )               \29, \)
   \               \5c, \\
   NUL             \00

SEE ALSO

Net::LDAP, Other online documentation

ACKNOWLEDGEMENTS

This document is based on a document originally written by Russell Fulton <r.fulton@auckland.ac.nz>.

AUTHOR

Graham Barr <gbarr@pobox.com>

Please report any bugs, or post any suggestions, to the perl-ldap mailing list <perl-ldap-dev@lists.sourceforge.net>.

COPYRIGHT

Copyright (c) 1997-2000 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

$Id: Filter.pod,v 1.3 2001/08/24 19:31:14 gbarr Exp $