/usr/share/perl5/XML/RSS/LibXML/MagicElement.pm is in libxml-rss-libxml-perl 0.3102+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2005 Daisuke Maki <dmaki@cpan.org>
# All rights reserved.
package XML::RSS::LibXML::MagicElement;
use strict;
use overload
bool => sub { 1 },
'""' => \&toString,
fallback => 1
;
use vars qw($VERSION);
$VERSION = '0.02';
# Make UNIVERSAL::isa happy
sub isa { __PACKAGE__ eq ($_[1] || '') }
sub new
{
my $class = shift;
my %args = @_;
my %attrs;
my @attrs;
my $attrs = $args{attributes};
if (ref($attrs) eq 'ARRAY') {
%attrs = map { (
$_->prefix && $_->prefix ne 'xmlns' ?
sprintf('%s:%s', $_->prefix, $_->localname || '') :
$_->localname || ''
, $_->getData
) } @$attrs;
@attrs = map { $_->getName } @$attrs;
} elsif (ref($attrs) eq 'HASH') {
%attrs = %$attrs;
@attrs = keys %$attrs;
} else {
die "'attributes' must be an arrayref of XML::LibXML::Attr objects, or a hashref of scalars";
}
return bless {
%attrs,
_attributes => \@attrs,
_content => $args{content},
}, $class;
}
sub attributes
{
my $self = shift;
return wantarray ? @{$self->{_attributes}} : $self->{_attributes};
}
sub toString
{
my $self = shift;
return (defined $self->{_content} && length $self->{_content}) ?
$self->{_content} :
join('', map { $self->{$_} || '' } $self->attributes);
}
1;
__END__
=head1 NAME
XML::RSS::LibXML::MagicElement - Represent A Non-Trivial RSS Element
=head1 SYNOPSIS
us XML::RS::LibXML::MagicElement;
my $xml = XML::RSS::LibXML::MagicElement->new(
content => $textContent,
attributes => \@attributes
);
=head1 DESCRIPTION
This module is a handy object that allows users to access non-trivial
RSS elements in XML::RSS style. For example, suppose you have an RSS
feed with an element like the following:
<channel>
<title>Example</title>
<tag attr1="foo" attr2="bar">baz</tag>
...
</channel>
While it is simple to access the title element like this:
$rss->{channel}->{title};
It was slightly non-trivial for the second tag. With this module, E<lt>tagE<gt>
is parsed as a XML::RSS::LibXML::MagicElement object and then you can access
all the elements like so:
$rss->{channel}->{tag}; # "baz"
$rss->{channel}->{tag}->{attr1}; # "foo"
$rss->{channel}->{tag}->{attr2}; # "bar"
=head1 METHODS
=head2 new
Create a new MagicElement object.
=head2 attributes
Returns the list of attributes associated with this element
=head2 toString
Returns the string representation of this object.
By default we use the "text content" of the found tag, but for XML::RSS
compatibility, we use the concatenation of the attributes if no content is
found.
=head1 AUTHOR
Copyright 2005 Daisuke Maki E<lt>dmaki@cpan.orgE<gt>. All rights reserved.
Development partially funded by Brazil, Ltd. E<lt>http://b.razil.jpE<gt>
=cut
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