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package Netscape::Bookmarks::Alias; |
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=encoding utf8 |
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=head1 NAME |
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Netscape::Bookmarks::Alias - object for an Alias in a Netscape Bookmarks file |
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=head1 SYNOPSIS |
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use Netscape::Bookmarks; |
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use Netscape::Bookmarks::Alias; |
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my $bookmarks = Netscape::Bookmarks->new(); |
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my $alias = Netscape::Bookmarks::Alias->new(); |
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$bookmarks->add( $alias ); |
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# ... and other Netscape::Bookmark::Category methods |
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=head1 DESCRIPTION |
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This module provides an abstraction for an Alias object in a Netscape |
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Bookmarks file. An alias is simply a reference to another link in the |
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Bookmarks file, henceforth called the target. If you change the alias, |
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the target link also changes. |
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=over 4 |
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=cut |
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use strict; |
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use base qw( Netscape::Bookmarks::AcceptVisitor Netscape::Bookmarks::Isa ); |
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use subs qw(); |
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use vars qw($VERSION $ERROR %aliases); |
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$VERSION = "2.303"; |
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=item $obj = Netscape::Bookmarks::Alias->new( ALIASID ) |
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Creates a new C object with the ALIASOF |
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attribute value of ALIASID. This object relies on a corresponding |
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C object with the same ALIASID, although |
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C does not check to see if that object exists (although it probably |
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should). |
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=cut |
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sub new { |
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my $class = shift; |
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my $param = shift; |
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my $self = {}; |
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bless $self, $class; |
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$self->{'alias_of'} = $param; |
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$self; |
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} |
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=item $obj->alias_of() |
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Returns the alias key for this C object. |
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=cut |
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sub alias_of { |
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my $self = shift; |
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return $self->{'alias_of'}; |
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} |
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=item $obj->target( ALIAS_KEY ) |
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Returns the target Link of the given alias key. The return value |
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is a C object if the target exists, or |
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C in scalar context or the empty list in list context if the |
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target does not exist. If you want to simply check to see if a |
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target exists, use C. |
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=cut |
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sub target { |
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my $self = shift; |
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return $aliases{$self->{'alias_of'}}; |
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} |
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=item add_target( $link_obj, ALIAS_KEY ) |
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Adds a target link for the given ALIAS_KEY. You can add target |
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links before the Alias is created. |
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=cut |
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# this should really be in Link.pm right? |
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sub add_target { |
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my $target = shift; #link reference |
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my $alias_id = shift; |
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$target->aliasid($alias_id); |
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$aliases{$alias_id} = $target; |
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} |
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=item target_exists( TARGET_KEY ) |
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For the given target key returns TRUE or FALSE if the target |
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exists. |
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=cut |
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sub target_exists { |
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my $target = shift; |
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exists $aliases{$target} ? 1 : 0; |
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} |
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=item $obj->as_string() |
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Returns a string representation on the alias. This is |
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almost identical from the representation of the link which |
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is aliases except that the ALIASID attribute is changed |
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to the ALIASOF attribute. |
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=cut |
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sub as_string { |
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my $self = shift; |
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my $string = $self->target->as_string; |
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$string =~ s/ALIASID/ALIASOF/; |
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return $string; |
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} |
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=item $obj->title() |
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Returns the tile of the Alias. |
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=cut |
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sub title { |
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my $self = shift; |
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return "Alias: " . $self->target->title; |
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} |
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=item $obj->remove() |
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Performs any clean up necessary to remove this object from the |
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Bookmarks tree. Although this method does not affect the Link object |
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which is its target, it probably should. |
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=cut |
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sub remove { |
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my $self = shift; |
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return 1; |
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} |
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"if you want to believe everything you read, so be it."; |
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=back |
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=head1 AUTHOR |
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brian d foy C<< >> |
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=head1 COPYRIGHT AND LICENSE |
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Copyright © 2002-2018, brian d foy . All rights reserved. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the Artistic License 2.0. |
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=head1 SEE ALSO |
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L, L |
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=cut |
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__END__ |