Ask Solem > Getopt-LL > Getopt::LL::DLList

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Module Version: 1.0.0   Source  

NAME ^

Getopt::LL::DLList - A doubly linked list.

VERSION ^

This document describes Getopt::LL::DLList version 1.0.0

SYNOPSIS ^

DESCRIPTION ^

     use Getopt:LL::DLList qw(getoptions);
 
     my @array = qw(The quick brown fox jumps over the lazy dog);
 
     # Create a doubly linked list out of the array.
     my $dllist = Getopt::LL::DLList->new(\@array);
 
     my $printer = DLList::Traverser::Print->new( );
 
     # Run the print_node method in the DLList::Traverser::Print object
     # for every node in our linked list. 
     $dllist->traverse($printer, 'print_node');
 
     package DLList::Traverser::Print;
     sub new {
         return bless { }, shift;
     };
     sub print_node {
         my ($self, $node_data, $node, $nodes_so_far) = @_;
         print "Node #$nodes_so_far: $node_data\n";
     }

SUBROUTINES/METHODS ^

CONSTRUCTOR

{new(@from_array)

Create a doubly linked list out of the given array.

ATTRIBUTES

head

set_head

The head (also called top node or root node) of the doubly linked list.

INSTANCE METHODS

traverse($handler_object, $handler_method)

Traverse the doubly linked list, and for each element in the list run the $handler_method with the $handler_object.

delete_node($node)

Delete a node from the list. Returns the value of the node deleted.

PRIVATE INSTANCE METHODS

_init()

Initialize the doubly linked list.

DEMOLISH()

Run at destruction.

DIAGNOSTICS ^

CONFIGURATION AND ENVIRONMENT ^

This module requires no configuration file or environment variables.

DEPENDENCIES ^

INCOMPATIBILITIES ^

None known.

BUGS AND LIMITATIONS ^

No bugs have been reported.

Please report any bugs or feature requests to C<bug-getopt-ll@rt.cpan.org>, or through the web interface at L<http://rt.cpan.org>.

SEE ALSO ^

Getopt::LL::Node

Getopt::LL

AUTHOR ^

Ask Solem, C<< ask@0x61736b.net >>.

LICENSE AND COPYRIGHT ^

Copyright (c), 2007 Ask Solem C<< ask@0x61736b.net >>.

All rights reserved.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.

DISCLAIMER OF WARRANTY ^

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENSE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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