# $Id: wais.pm,v 2.100 2003/03/12 22:23:14 abigail Exp $

package Regexp::Common::URI::wais;

use strict;
local $^W = 1;

use Regexp::Common               qw /pattern clean no_defaults/;
use Regexp::Common::URI          qw /register_uri/;
use Regexp::Common::URI::RFC1738 qw /$host $port
                                     $search $database $wtype $wpath/;

use vars qw /$VERSION/;

($VERSION) = q $Revision: 2.100 $ =~ /[\d.]+/g;

my $scheme = 'wais';
my $uri    = "(?k:(?k:$scheme)://(?k:$host)(?::(?k:$port))?/(?k:(?k:$database)" 
           . "(?k:[?](?k:$search)|/(?k:$wtype)/(?k:$wpath))?))";

register_uri $scheme => $uri;

pattern name    => [qw (URI WAIS)],
        create  => $uri,
        ;

1;

__END__

=pod

=head1 NAME

Regexp::Common::URI::wais -- Returns a pattern for WAIS URIs.

=head1 SYNOPSIS

    use Regexp::Common qw /URI/;

    while (<>) {
        /$RE{URI}{WAIS}/       and  print "Contains a WAIS URI.\n";
    }

=head1 DESCRIPTION

=head2 $RE{URI}{WAIS}

Returns a pattern that matches I<WAIS> URIs, as defined by RFC 1738.
WAIS URIs have the form:

    "wais:" "//" host [ ":" port ] "/" database
                      [ ( "?" search ) | ( "/" wtype "/" wpath ) ]

Under C<{-keep}>, the following are returned:

=over 4

=item $1

The complete URI.

=item $2

The I<scheme>.

=item $3

The I<hostname>.

=item $4

The I<port>, if given.

=item $5

The I<database>, followed by I<search> or I<wtype/wpath>, if given.

=item $6

The I<database>.

=item $7

The part following the I<database> if given, including the question mark 
or slash.

=item $8

The I<search> part, if given.

=item $9

The I<wtype>, if given.

=item $10

The I<wpath>, if given.

=back

=head1 REFERENCES

=over 4

=item B<[RFC 1738]>

Berners-Lee, Tim, Masinter, L., McCahill, M.: I<Uniform Resource
Locators (URL)>. December 1994.

=back

=head1 HISTORY

 $Log: wais.pm,v $
 Revision 2.100  2003/03/12 22:23:14  abigail
 Forced 2.100 revision

 Revision 2.1  2003/03/12 22:22:21  abigail
 WAIS URIs.


=head1 SEE ALSO

L<Regexp::Common::URI> for other supported URIs.

=head1 AUTHOR

Damian Conway (damian@conway.org)

=head1 MAINTAINANCE

This package is maintained by Abigail S<(I<regexp-common@abigail.nl>)>.

=head1 BUGS AND IRRITATIONS

Bound to be plenty.

=head1 COPYRIGHT

     Copyright (c) 2001 - 2003, Damian Conway. All Rights Reserved.
       This module is free software. It may be used, redistributed
      and/or modified under the terms of the Perl Artistic License
            (see http://www.perl.com/perl/misc/Artistic.html)

=cut