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jp_milcent |
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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* RSS1 Element class for XML_Feed_Parser
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*
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* PHP versions 5
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*
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* LICENSE: This source file is subject to version 3.0 of the PHP license
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* that is available through the world-wide-web at the following URI:
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* http://www.php.net/license/3_0.txt. If you did not receive a copy of
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* the PHP License and are unable to obtain it through the web, please
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* send a note to license@php.net so we can mail you a copy immediately.
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*
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* @category XML
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* @package XML_Feed_Parser
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* @author James Stewart <james@jystewart.net>
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* @copyright 2005 James Stewart <james@jystewart.net>
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* @license http://www.gnu.org/copyleft/lesser.html GNU LGPL 2.1
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* @version CVS: $Id: RSS11Element.php,v 1.2 2007-07-25 15:05:34 jp_milcent Exp $
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* @link http://pear.php.net/package/XML_Feed_Parser/
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*/
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/*
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* This class provides support for RSS 1.1 entries. It will usually be called by
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* XML_Feed_Parser_RSS11 with which it shares many methods.
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*
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* @author James Stewart <james@jystewart.net>
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* @version Release: 1.0.2
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* @package XML_Feed_Parser
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*/
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class XML_Feed_Parser_RSS11Element extends XML_Feed_Parser_RSS11
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{
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/**
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* This will be a reference to the parent object for when we want
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* to use a 'fallback' rule
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* @var XML_Feed_Parser_RSS1
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*/
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protected $parent;
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/**
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* Our specific element map
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* @var array
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*/
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protected $map = array(
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'id' => array('Id'),
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'title' => array('Text'),
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'link' => array('Link'),
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'description' => array('Text'), # or dc:description
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'category' => array('Category'),
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'rights' => array('Text'), # dc:rights
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'creator' => array('Text'), # dc:creator
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'publisher' => array('Text'), # dc:publisher
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'contributor' => array('Text'), # dc:contributor
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'date' => array('Date'), # dc:date
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'content' => array('Content')
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);
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/**
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* Here we map some elements to their atom equivalents. This is going to be
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* quite tricky to pull off effectively (and some users' methods may vary)
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* but is worth trying. The key is the atom version, the value is RSS1.
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* @var array
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*/
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protected $compatMap = array(
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'content' => array('content'),
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'updated' => array('lastBuildDate'),
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'published' => array('pubdate'),
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'subtitle' => array('description'),
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'updated' => array('date'),
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'author' => array('creator'),
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'contributor' => array('contributor')
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);
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/**
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* Store useful information for later.
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*
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* @param DOMElement $element - this item as a DOM element
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* @param XML_Feed_Parser_RSS1 $parent - the feed of which this is a member
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*/
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function __construct(DOMElement $element, $parent, $xmlBase = '')
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{
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$this->model = $element;
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$this->parent = $parent;
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}
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/**
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* If an rdf:about attribute is specified, return that as an ID
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*
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* There is no established way of showing an ID for an RSS1 entry. We will
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* simulate it using the rdf:about attribute of the entry element. This cannot
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* be relied upon for unique IDs but may prove useful.
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*
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* @return string|false
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*/
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function getId()
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{
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if ($this->model->attributes->getNamedItem('about')) {
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return $this->model->attributes->getNamedItem('about')->nodeValue;
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}
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return false;
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}
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/**
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* Return the entry's content
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*
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* The official way to include full content in an RSS1 entry is to use
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* the content module's element 'encoded'. Often, however, the 'description'
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* element is used instead. We will offer that as a fallback.
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*
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* @return string|false
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*/
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function getContent()
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{
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$options = array('encoded', 'description');
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foreach ($options as $element) {
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$test = $this->model->getElementsByTagName($element);
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if ($test->length == 0) {
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continue;
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}
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if ($test->item(0)->hasChildNodes()) {
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$value = '';
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foreach ($test->item(0)->childNodes as $child) {
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if ($child instanceof DOMText) {
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$value .= $child->nodeValue;
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} else {
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$simple = simplexml_import_dom($child);
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$value .= $simple->asXML();
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}
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}
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return $value;
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} else if ($test->length > 0) {
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return $test->item(0)->nodeValue;
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}
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}
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return false;
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}
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/**
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* How RSS1.1 should support for enclosures is not clear. For now we will return
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* false.
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*
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* @return false
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*/
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function getEnclosure()
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{
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return false;
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}
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}
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?>
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