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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: RSS1Element.php 304308 2010-10-11 12:05:50Z clockwerx $
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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 1.0 entries. It will usually be called by
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 * XML_Feed_Parser_RSS1 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: @package_version@
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 * @package XML_Feed_Parser
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 */
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class XML_Feed_Parser_RSS1Element extends XML_Feed_Parser_RSS1
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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('date'),
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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 = $parent;
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    }
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    /**
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     * If an rdf:about attribute is specified, return it as an ID
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     *
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     * There is no established way of showing an ID for an RSS1 entry. We will
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     * simulate it using the rdf:about attribute of the entry element. This cannot
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     * be relied upon for unique IDs but may prove useful.
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     *
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     * @return  string|false
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     */
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    function getId()
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    {
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        if ($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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     * How RSS1 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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?>