ljr/livejournal/cgi-bin/XML/Atom/Entry.pm

132 lines
3.5 KiB
Perl
Raw Normal View History

2019-02-05 21:49:12 +00:00
# $Id: Entry.pm,v 1.1 2005/04/15 17:37:32 bradfitz Exp $
package XML::Atom::Entry;
use strict;
use XML::Atom;
use base qw( XML::Atom::Thing );
use MIME::Base64 qw( encode_base64 decode_base64 );
use XML::Atom::Person;
use XML::Atom::Content;
use XML::Atom::Util qw( first );
use constant NS => 'http://purl.org/atom/ns#';
sub element_name { 'entry' }
sub content {
my $entry = shift;
my @arg = @_;
if (@arg && ref($arg[0]) ne 'XML::Atom::Content') {
$arg[0] = XML::Atom::Content->new($arg[0]);
}
$entry->_element('XML::Atom::Content', 'content', @arg);
}
1;
__END__
=head1 NAME
XML::Atom::Entry - Atom entry
=head1 SYNOPSIS
use XML::Atom::Entry;
my $entry = XML::Atom::Entry->new;
$entry->title('My Post');
$entry->content('The content of my post.');
my $xml = $entry->as_xml;
my $dc = XML::Atom::Namespace->new(dc => 'http://purl.org/dc/elements/1.1/');
$entry->set($dc, 'subject', 'Food & Drink');
=head1 USAGE
=head2 XML::Atom::Entry->new([ $stream ])
Creates a new entry object, and if I<$stream> is supplied, fills it with the
data specified by I<$stream>.
Automatically handles autodiscovery if I<$stream> is a URI (see below).
Returns the new I<XML::Atom::Entry> object. On failure, returns C<undef>.
I<$stream> can be any one of the following:
=over 4
=item * Reference to a scalar
This is treated as the XML body of the entry.
=item * Scalar
This is treated as the name of a file containing the entry XML.
=item * Filehandle
This is treated as an open filehandle from which the entry XML can be read.
=back
=head2 $entry->content([ $content ])
Returns the content of the entry. If I<$content> is given, sets the content
of the entry. Automatically handles all necessary escaping.
=head2 $entry->author([ $author ])
Returns an I<XML::Atom::Person> object representing the author of the entry,
or C<undef> if there is no author information present.
If I<$author> is supplied, it should be an I<XML::Atom::Person> object
representing the author. For example:
my $author = XML::Atom::Person->new;
$author->name('Foo Bar');
$author->email('foo@bar.com');
$entry->author($author);
=head2 $entry->link
If called in scalar context, returns an I<XML::Atom::Link> object
corresponding to the first I<E<lt>linkE<gt>> tag found in the entry.
If called in list context, returns a list of I<XML::Atom::Link> objects
corresponding to all of the I<E<lt>linkE<gt>> tags found in the entry.
=head2 $entry->add_link($link)
Adds the link I<$link>, which must be an I<XML::Atom::Link> object, to
the entry as a new I<E<lt>linkE<gt>> tag. For example:
my $link = XML::Atom::Link->new;
$link->type('text/html');
$link->rel('alternate');
$link->href('http://www.example.com/2003/12/post.html');
$entry->add_link($link);
=head2 $entry->get($ns, $element)
Given an I<XML::Atom::Namespace> element I<$ns> and an element name
I<$element>, retrieves the value for the element in that namespace.
This is useful for retrieving the value of elements not in the main Atom
namespace, like categories. For example:
my $dc = XML::Atom::Namespace->new(dc => 'http://purl.org/dc/elements/1.1/');
my $subj = $entry->get($dc, 'subject');
=head2 $entry->getlist($ns, $element)
Just like I<$entry-E<gt>get>, but if there are multiple instances of the
element I<$element> in the namespace I<$ns>, returns all of them. I<get>
will return only the first.
=head1 AUTHOR & COPYRIGHT
Please see the I<XML::Atom> manpage for author, copyright, and license
information.
=cut