<?php
/**
 * SimplePie
 *
 * A PHP-Based RSS and Atom Feed Framework.
 * Takes the hard work out of managing a complete RSS/Atom solution.
 *
 * Please note: This file is automatically generated by a build script. The
 * full original source is always available from http://simplepie.org/
 *
 * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * 	* Redistributions of source code must retain the above copyright notice, this list of
 * 	  conditions and the following disclaimer.
 *
 * 	* Redistributions in binary form must reproduce the above copyright notice, this list
 * 	  of conditions and the following disclaimer in the documentation and/or other materials
 * 	  provided with the distribution.
 *
 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
 * 	  to endorse or promote products derived from this software without specific prior
 * 	  written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package SimplePie
 * @version 1.3-dev
 * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
 * @author Ryan Parman
 * @author Geoffrey Sneddon
 * @author Ryan McCue
 * @link http://simplepie.org/ SimplePie
 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 */

/**
 * SimplePie class.
 *
 * Class for backward compatibility.
 *
 * @package SimplePie
 */
class SimplePie extends SimplePie_Core
{

}

/**
 * Manages `<media:copyright>` copyright tags as defined in Media RSS
 *
 * Used by {@see SimplePie_Enclosure::get_copyright()}
 *
 * This class can be overloaded with {@see SimplePie::set_copyright_class()}
 *
 * @package SimplePie
 */
class SimplePie_Copyright
{
	/**
	 * Copyright URL
	 *
	 * @var string
	 * @see get_url()
	 */
	var $url;

	/**
	 * Attribution
	 *
	 * @var string
	 * @see get_attribution()
	 */
	var $label;

	/**
	 * Constructor, used to input the data
	 *
	 * For documentation on all the parameters, see the corresponding
	 * properties and their accessors
	 */
	public function __construct($url = null, $label = null)
	{
		$this->url = $url;
		$this->label = $label;
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Get the copyright URL
	 *
	 * @return string|null URL to copyright information
	 */
	public function get_url()
	{
		if ($this->url !== null)
		{
			return $this->url;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the attribution text
	 *
	 * @return string|null
	 */
	public function get_attribution()
	{
		if ($this->label !== null)
		{
			return $this->label;
		}
		else
		{
			return null;
		}
	}
}

/**
 * Used to create cache objects
 *
 * This class can be overloaded with {@see SimplePie::set_cache_class()},
 * although the preferred way is to create your own handler
 * via {@see register()}
 *
 * @package SimplePie
 */
class SimplePie_Cache
{
	/**
	 * Cache handler classes
	 *
	 * These receive 3 parameters to their constructor, as documented in
	 * {@see register()}
	 * @var array
	 */
	protected static $handlers = array(
		'mysql' => 'SimplePie_Cache_MySQL',
		'memcache' => 'SimplePie_Cache_Memcache',
	);

	/**
	 * Don't call the constructor. Please.
	 */
	private function __construct() { }

	/**
	 * Create a new SimplePie_Cache object
	 *
	 * @param string $location URL location (scheme is used to determine handler)
	 * @param string $filename Unique identifier for cache object
	 * @param string $extension 'spi' or 'spc'
	 * @return SimplePie_Cache_Base Type of object depends on scheme of `$location`
	 */
	public static function create($location, $filename, $extension)
	{
		$type = explode(':', $location, 2);
		$type = $type[0];
		if (!empty(self::$handlers[$type]))
		{
			$class = self::$handlers[$type];
			return new $class($location, $filename, $extension);
		}

		return new SimplePie_Cache_File($location, $filename, $extension);
	}

	/**
	 * Register a handler
	 *
	 * @param string $type DSN type to register for
	 * @param string $class Name of handler class. Must implement SimplePie_Cache_Base
	 */
	public static function register($type, $class)
	{
		self::$handlers[$type] = $class;
	}

	/**
	 * Parse a URL into an array
	 *
	 * @param string $url
	 * @return array
	 */
	public static function parse_URL($url)
	{
		$params = parse_url($url);
		$params['extras'] = array();
		if (isset($params['query']))
		{
			parse_str($params['query'], $params['extras']);
		}
		return $params;
	}
}

/**
 * Handles creating objects and calling methods
 *
 * Access this via {@see SimplePie::get_registry()}
 *
 * @package SimplePie
 */
class SimplePie_Registry
{
	/**
	 * Default class mapping
	 *
	 * Overriding classes *must* subclass these.
	 *
	 * @var array
	 */
	protected $default = array(
		'Cache' => 'SimplePie_Cache',
		'Locator' => 'SimplePie_Locator',
		'Parser' => 'SimplePie_Parser',
		'File' => 'SimplePie_File',
		'Sanitize' => 'SimplePie_Sanitize',
		'Item' => 'SimplePie_Item',
		'Author' => 'SimplePie_Author',
		'Category' => 'SimplePie_Category',
		'Enclosure' => 'SimplePie_Enclosure',
		'Caption' => 'SimplePie_Caption',
		'Copyright' => 'SimplePie_Copyright',
		'Credit' => 'SimplePie_Credit',
		'Rating' => 'SimplePie_Rating',
		'Restriction' => 'SimplePie_Restriction',
		'Content_Type_Sniffer' => 'SimplePie_Content_Type_Sniffer',
		'Source' => 'SimplePie_Source',
		'Misc' => 'SimplePie_Misc',
		'XML_Declaration_Parser' => 'SimplePie_XML_Declaration_Parser',
		'Parse_Date' => 'SimplePie_Parse_Date',
	);

	/**
	 * Class mapping
	 *
	 * @see register()
	 * @var array
	 */
	protected $classes = array();

	/**
	 * Legacy classes
	 *
	 * @see register()
	 * @var array
	 */
	protected $legacy = array();

	/**
	 * Constructor
	 *
	 * No-op
	 */
	public function __construct() { }

	/**
	 * Register a class
	 *
	 * @param string $type See {@see $default} for names
	 * @param string $class Class name, must subclass the corresponding default
	 * @param bool $legacy Whether to enable legacy support for this class
	 * @return bool Successfulness
	 */
	public function register($type, $class, $legacy = false)
	{
		if (!$this->call('Misc', 'is_subclass_of', array($class, $this->default[$type])))
		{
			return false;
		}

		$this->classes[$type] = $class;

		if ($legacy)
		{
			$this->legacy[] = $class;
		}

		return true;
	}

	/**
	 * Get the class registered for a type
	 *
	 * Where possible, use {@see create()} or {@see call()} instead
	 *
	 * @param string $type
	 * @return string|null
	 */
	public function get_class($type)
	{
		if (!empty($this->classes[$type]))
		{
			return $this->classes[$type];
		}
		if (!empty($this->default[$type]))
		{
			return $this->default[$type];
		}

		return null;
	}

	/**
	 * Create a new instance of a given type
	 *
	 * @param string $type
	 * @param array $parameters Parameters to pass to the constructor
	 * @return object Instance of class
	 */
	public function &create($type, $parameters = array())
	{
		$class = $this->get_class($type);

		if (in_array($class, $this->legacy))
		{
			switch ($type)
			{
				case 'locator':
					// Legacy: file, timeout, useragent, file_class, max_checked_feeds, content_type_sniffer_class
					// Specified: file, timeout, useragent, max_checked_feeds
					$replacement = array($this->get_class('file'), $parameters[3], $this->get_class('content_type_sniffer'));
					array_splice($parameters, 3, 1, $replacement);
					break;
			}
		}

		if (!method_exists($class, '__construct'))
		{
			$instance = new $class;
		}
		else
		{
			$reflector = new ReflectionClass($class);
			$instance = $reflector->newInstanceArgs($parameters);
		}

		if (method_exists($instance, 'set_registry'))
		{
			$instance->set_registry($this);
		}
		return $instance;
	}

	/**
	 * Call a static method for a type
	 *
	 * @param string $type
	 * @param string $method
	 * @param array $parameters
	 * @return mixed
	 */
	public function &call($type, $method, $parameters = array())
	{
		$class = $this->get_class($type);

		$result = call_user_func_array(array($class, $method), $parameters);
		return $result;
	}
}

/**
 * Base class for database-based caches
 *
 * @package SimplePie
 */
abstract class SimplePie_Cache_DB implements SimplePie_Cache_Base
{
	/**
	 * Helper for database conversion
	 *
	 * Converts a given {@see SimplePie} object into data to be stored
	 *
	 * @param SimplePie $data
	 * @return array First item is the serialized data for storage, second item is the unique ID for this item
	 */
	protected static function prepare_simplepie_object_for_cache(&$data)
	{
		$items = $data->get_items();
		$items_by_id = array();

		if (!empty($items))
		{
			foreach ($items as $item)
			{
				$items_by_id[$item->get_id()] = $item;
			}

			if (count($items_by_id) !== count($items))
			{
				$items_by_id = array();
				foreach ($items as $item)
				{
					$items_by_id[$item->get_id(true)] = $item;
				}
			}

			if (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]))
			{
				$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0];
			}
			elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]))
			{
				$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0];
			}
			elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]))
			{
				$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0];
			}
			elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0]))
			{
				$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0];
			}
			else
			{
				$channel = null;
			}

			if ($channel !== null)
			{
				if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']))
				{
					unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']);
				}
				if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']))
				{
					unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']);
				}
				if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']))
				{
					unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']);
				}
				if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']))
				{
					unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']);
				}
				if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']))
				{
					unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']);
				}
			}
			if (isset($data->data['items']))
			{
				unset($data->data['items']);
			}
			if (isset($data->data['ordered_items']))
			{
				unset($data->data['ordered_items']);
			}
		}
		return array(serialize($data->data), $items_by_id);
	}
}

/**
 * Caches data to the filesystem
 *
 * @package SimplePie
 */
class SimplePie_Cache_File implements SimplePie_Cache_Base
{
	/**
	 * Location string
	 *
	 * @see SimplePie::$cache_location
	 * @var string
	 */
	protected $location;

	/**
	 * Filename
	 *
	 * @var string
	 */
	protected $filename;

	/**
	 * File extension
	 *
	 * @var string
	 */
	protected $extension;

	/**
	 * File path
	 *
	 * @var string
	 */
	protected $name;

	/**
	 * Create a new cache object
	 *
	 * @param string $location Location string (from SimplePie::$cache_location)
	 * @param string $name Unique ID for the cache
	 * @param string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
	 */
	public function __construct($location, $name, $type)
	{
		$this->location = $location;
		$this->filename = $name;
		$this->extension = $type;
		$this->name = "$this->location/$this->filename.$this->extension";
	}

	/**
	 * Save data to the cache
	 *
	 * @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property
	 * @return bool Successfulness
	 */
	public function save($data)
	{
		if (file_exists($this->name) && is_writeable($this->name) || file_exists($this->location) && is_writeable($this->location))
		{
			if ($data instanceof SimplePie)
			{
				$data = $data->data;
			}

			$data = serialize($data);
			return (bool) file_put_contents($this->name, $data);
		}
		return false;
	}

	/**
	 * Retrieve the data saved to the cache
	 *
	 * @return array Data for SimplePie::$data
	 */
	public function load()
	{
		if (file_exists($this->name) && is_readable($this->name))
		{
			return unserialize(file_get_contents($this->name));
		}
		return false;
	}

	/**
	 * Retrieve the last modified time for the cache
	 *
	 * @return int Timestamp
	 */
	public function mtime()
	{
		if (file_exists($this->name))
		{
			return filemtime($this->name);
		}
		return false;
	}

	/**
	 * Set the last modified time to the current time
	 *
	 * @return bool Success status
	 */
	public function touch()
	{
		if (file_exists($this->name))
		{
			return touch($this->name);
		}
		return false;
	}

	/**
	 * Remove the cache
	 *
	 * @return bool Success status
	 */
	public function unlink()
	{
		if (file_exists($this->name))
		{
			return unlink($this->name);
		}
		return false;
	}
}

/**
 * Base for cache objects
 *
 * Classes to be used with {@see SimplePie_Cache::register()} are expected
 * to implement this interface.
 *
 * @package SimplePie
 */
interface SimplePie_Cache_Base
{
	/**
	 * Feed cache type
	 *
	 * @var string
	 */
	const TYPE_FEED = 'spc';

	/**
	 * Image cache type
	 *
	 * @var string
	 */
	const TYPE_IMAGE = 'spi';

	/**
	 * Create a new cache object
	 *
	 * @param string $location Location string (from SimplePie::$cache_location)
	 * @param string $name Unique ID for the cache
	 * @param string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
	 */
	public function __construct($location, $name, $type);

	/**
	 * Save data to the cache
	 *
	 * @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property
	 * @return bool Successfulness
	 */
	public function save($data);

	/**
	 * Retrieve the data saved to the cache
	 *
	 * @return array Data for SimplePie::$data
	 */
	public function load();

	/**
	 * Retrieve the last modified time for the cache
	 *
	 * @return int Timestamp
	 */
	public function mtime();

	/**
	 * Set the last modified time to the current time
	 *
	 * @return bool Success status
	 */
	public function touch();

	/**
	 * Remove the cache
	 *
	 * @return bool Success status
	 */
	public function unlink();
}

/**
 * Caches data to memcache
 *
 * Registered for URLs with the "memcache" protocol
 *
 * For example, `memcache://localhost:11211/?timeout=3600^prefix=sp_` will
 * connect to memcache on `localhost` on port 11211. All tables will be
 * prefixed with `sp_` and data will expire after 3600 seconds
 *
 * @package SimplePie
 * @uses Memcache
 */
class SimplePie_Cache_Memcache implements SimplePie_Cache_Base
{
	/**
	 * Memcache instance
	 *
	 * @var Memcache
	 */
	protected $cache;

	/**
	 * Options
	 *
	 * @var array
	 */
	protected $options;

	/**
	 * Cache name
	 *
	 * @var string
	 */
	protected $name;

	/**
	 * Create a new cache object
	 *
	 * @param string $location Location string (from SimplePie::$cache_location)
	 * @param string $name Unique ID for the cache
	 * @param string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
	 */
	public function __construct($location, $name, $type)
	{
		$this->options = array(
			'host' => '127.0.0.1',
			'port' => 11211,
			'extras' => array(
				'timeout' => 3600, // one hour
				'prefix' => 'simplepie_',
			),
		);
		$this->options = array_merge_recursive($this->options, SimplePie_Cache::parse_URL($location));
		$this->name = $this->options['extras']['prefix'] . md5("$name:$type");

		$this->cache = new Memcache();
		$this->cache->addServer($this->options['host'], (int) $this->options['port']);
	}

	/**
	 * Save data to the cache
	 *
	 * @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property
	 * @return bool Successfulness
	 */
	public function save($data)
	{
		if ($data instanceof SimplePie)
		{
			$data = $data->data;
		}
		return $this->cache->set($this->name, serialize($data), MEMCACHE_COMPRESSED, (int) $this->options['extras']['timeout']);
	}

	/**
	 * Retrieve the data saved to the cache
	 *
	 * @return array Data for SimplePie::$data
	 */
	public function load()
	{
		$data = $this->cache->get($this->name);

		if ($data !== false)
		{
			return unserialize($data);
		}
		return false;
	}

	/**
	 * Retrieve the last modified time for the cache
	 *
	 * @return int Timestamp
	 */
	public function mtime()
	{
		$data = $this->cache->get($this->name);

		if ($data !== false)
		{
			// essentially ignore the mtime because Memcache expires on it's own
			return time();
		}

		return false;
	}

	/**
	 * Set the last modified time to the current time
	 *
	 * @return bool Success status
	 */
	public function touch()
	{
		$data = $this->cache->get($this->name);

		if ($data !== false)
		{
			return $this->cache->set($this->name, $data, MEMCACHE_COMPRESSED, (int) $this->duration);
		}

		return false;
	}

	/**
	 * Remove the cache
	 *
	 * @return bool Success status
	 */
	public function unlink()
	{
		return $this->cache->delete($this->name, 0);
	}
}

/**
 * Caches data to a MySQL database
 *
 * Registered for URLs with the "mysql" protocol
 *
 * For example, `mysql://root:password@localhost:3306/mydb?prefix=sp_` will
 * connect to the `mydb` database on `localhost` on port 3306, with the user
 * `root` and the password `password`. All tables will be prefixed with `sp_`
 *
 * @package SimplePie
 */
class SimplePie_Cache_MySQL extends SimplePie_Cache_DB
{
	/**
	 * PDO instance
	 *
	 * @var PDO
	 */
	protected $mysql;

	/**
	 * Options
	 *
	 * @var array
	 */
	protected $options;

	/**
	 * Cache ID
	 *
	 * @var string
	 */
	protected $id;

	/**
	 * Create a new cache object
	 *
	 * @param string $location Location string (from SimplePie::$cache_location)
	 * @param string $name Unique ID for the cache
	 * @param string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
	 */
	public function __construct($location, $name, $type)
	{
		$this->options = array(
			'user' => null,
			'pass' => null,
			'host' => '127.0.0.1',
			'port' => '3306',
			'path' => '',
			'extras' => array(
				'prefix' => '',
			),
		);
		$this->options = array_merge_recursive($this->options, SimplePie_Cache::parse_URL($location));

		// Path is prefixed with a "/"
		$this->options['dbname'] = substr($this->options['path'], 1);

		try
		{
			$this->mysql = new PDO("mysql:dbname={$this->options['dbname']};host={$this->options['host']};port={$this->options['port']}", $this->options['user'], $this->options['pass'], array(PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8'));
		}
		catch (PDOException $e)
		{
			$this->mysql = null;
			return;
		}

		$this->id = $name . $type;

		if (!$query = $this->mysql->query('SHOW TABLES'))
		{
			$this->mysql = null;
			return;
		}

		$db = array();
		while ($row = $query->fetchColumn())
		{
			$db[] = $row;
		}

		if (!in_array($this->options['extras']['prefix'] . 'cache_data', $db))
		{
			$query = $this->mysql->exec('CREATE TABLE `' . $this->options['extras']['prefix'] . 'cache_data` (`id` TEXT CHARACTER SET utf8 NOT NULL, `items` SMALLINT NOT NULL DEFAULT 0, `data` BLOB NOT NULL, `mtime` INT UNSIGNED NOT NULL, UNIQUE (`id`(125)))');
			if ($query === false)
			{
				$this->mysql = null;
			}
		}

		if (!in_array($this->options['extras']['prefix'] . 'items', $db))
		{
			$query = $this->mysql->exec('CREATE TABLE `' . $this->options['extras']['prefix'] . 'items` (`feed_id` TEXT CHARACTER SET utf8 NOT NULL, `id` TEXT CHARACTER SET utf8 NOT NULL, `data` TEXT CHARACTER SET utf8 NOT NULL, `posted` INT UNSIGNED NOT NULL, INDEX `feed_id` (`feed_id`(125)))');
			if ($query === false)
			{
				$this->mysql = null;
			}
		}
	}

	/**
	 * Save data to the cache
	 *
	 * @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property
	 * @return bool Successfulness
	 */
	public function save($data)
	{
		if ($this->mysql === null)
		{
			return false;
		}

		if ($data instanceof SimplePie)
		{
			$data = clone $data;

			$prepared = self::prepare_simplepie_object_for_cache($data);

			$query = $this->mysql->prepare('SELECT COUNT(*) FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :feed');
			$query->bindValue(':feed', $this->id);
			if ($query->execute())
			{
				if ($query->fetchColumn() > 0)
				{
					$items = count($prepared[1]);
					if ($items)
					{
						$sql = 'UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `items` = :items, `data` = :data, `mtime` = :time WHERE `id` = :feed';
						$query = $this->mysql->prepare($sql);
						$query->bindValue(':items', $items);
					}
					else
					{
						$sql = 'UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `data` = :data, `mtime` = :time WHERE `id` = :feed';
						$query = $this->mysql->prepare($sql);
					}

					$query->bindValue(':data', $prepared[0]);
					$query->bindValue(':time', time());
					$query->bindValue(':feed', $this->id);
					if (!$query->execute())
					{
						return false;
					}
				}
				else
				{
					$query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:feed, :count, :data, :time)');
					$query->bindValue(':feed', $this->id);
					$query->bindValue(':count', count($prepared[1]));
					$query->bindValue(':data', $prepared[0]);
					$query->bindValue(':time', time());
					if (!$query->execute())
					{
						return false;
					}
				}

				$ids = array_keys($prepared[1]);
				if (!empty($ids))
				{
					foreach ($ids as $id)
					{
						$database_ids[] = $this->mysql->quote($id);
					}

					$query = $this->mysql->prepare('SELECT `id` FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `id` = ' . implode(' OR `id` = ', $database_ids) . ' AND `feed_id` = :feed');
					$query->bindValue(':feed', $this->id);

					if ($query->execute())
					{
						$existing_ids = array();
						while ($row = $query->fetchColumn())
						{
							$existing_ids[] = $row;
						}

						$new_ids = array_diff($ids, $existing_ids);

						foreach ($new_ids as $new_id)
						{
							if (!($date = $prepared[1][$new_id]->get_date('U')))
							{
								$date = time();
							}

							$query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'items` (`feed_id`, `id`, `data`, `posted`) VALUES(:feed, :id, :data, :date)');
							$query->bindValue(':feed', $this->id);
							$query->bindValue(':id', $new_id);
							$query->bindValue(':data', serialize($prepared[1][$new_id]->data));
							$query->bindValue(':date', $date);
							if (!$query->execute())
							{
								return false;
							}
						}
						return true;
					}
				}
				else
				{
					return true;
				}
			}
		}
		else
		{
			$query = $this->mysql->prepare('SELECT `id` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :feed');
			$query->bindValue(':feed', $this->id);
			if ($query->execute())
			{
				if ($query->rowCount() > 0)
				{
					$query = $this->mysql->prepare('UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `items` = 0, `data` = :data, `mtime` = :time WHERE `id` = :feed');
					$query->bindValue(':data', serialize($data));
					$query->bindValue(':time', time());
					$query->bindValue(':feed', $this->id);
					if ($this->execute())
					{
						return true;
					}
				}
				else
				{
					$query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:id, 0, :data, :time)');
					$query->bindValue(':id', $this->id);
					$query->bindValue(':data', serialize($data));
					$query->bindValue(':time', time());
					if ($query->execute())
					{
						return true;
					}
				}
			}
		}
		return false;
	}

	/**
	 * Retrieve the data saved to the cache
	 *
	 * @return array Data for SimplePie::$data
	 */
	public function load()
	{
		if ($this->mysql === null)
		{
			return false;
		}

		$query = $this->mysql->prepare('SELECT `items`, `data` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');
		$query->bindValue(':id', $this->id);
		if ($query->execute() && ($row = $query->fetch()))
		{
			$data = unserialize($row[1]);

			if (isset($this->options['items'][0]))
			{
				$items = (int) $this->options['items'][0];
			}
			else
			{
				$items = (int) $row[0];
			}

			if ($items !== 0)
			{
				if (isset($data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]))
				{
					$feed =& $data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0];
				}
				elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]))
				{
					$feed =& $data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0];
				}
				elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]))
				{
					$feed =& $data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0];
				}
				elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]))
				{
					$feed =& $data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0];
				}
				else
				{
					$feed = null;
				}

				if ($feed !== null)
				{
					$sql = 'SELECT `data` FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `feed_id` = :feed ORDER BY `posted` DESC';
					if ($items > 0)
					{
						$sql .= ' LIMIT ' . $items;
					}

					$query = $this->mysql->prepare($sql);
					$query->bindValue(':feed', $this->id);
					if ($query->execute())
					{
						while ($row = $query->fetchColumn())
						{
							$feed['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry'][] = unserialize($row);
						}
					}
					else
					{
						return false;
					}
				}
			}
			return $data;
		}
		return false;
	}

	/**
	 * Retrieve the last modified time for the cache
	 *
	 * @return int Timestamp
	 */
	public function mtime()
	{
		if ($this->mysql === null)
		{
			return false;
		}

		$query = $this->mysql->prepare('SELECT `mtime` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');
		$query->bindValue(':id', $this->id);
		if ($query->execute() && ($time = $query->fetchColumn()))
		{
			return $time;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Set the last modified time to the current time
	 *
	 * @return bool Success status
	 */
	public function touch()
	{
		if ($this->mysql === null)
		{
			return false;
		}

		$query = $this->mysql->prepare('UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `mtime` = :time WHERE `id` = :id');
		$query->bindValue(':time', time());
		$query->bindValue(':id', $this->id);
		if ($query->execute() && $query->rowCount() > 0)
		{
			return true;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Remove the cache
	 *
	 * @return bool Success status
	 */
	public function unlink()
	{
		if ($this->mysql === null)
		{
			return false;
		}

		$query = $this->mysql->prepare('DELETE FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');
		$query->bindValue(':id', $this->id);
		$query2 = $this->mysql->prepare('DELETE FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `feed_id` = :id');
		$query2->bindValue(':id', $this->id);
		if ($query->execute() && $query2->execute())
		{
			return true;
		}
		else
		{
			return false;
		}
	}
}

/**
 * Used for data cleanup and post-processing
 *
 *
 * This class can be overloaded with {@see SimplePie::set_sanitize_class()}
 *
 * @package SimplePie
 * @todo Move to using an actual HTML parser (this will allow tags to be properly stripped, and to switch between HTML and XHTML), this will also make it easier to shorten a string while preserving HTML tags
 */
class SimplePie_Sanitize
{
	// Private vars
	var $base;

	// Options
	var $remove_div = true;
	var $image_handler = '';
	var $strip_htmltags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style');
	var $encode_instead_of_strip = false;
	var $strip_attributes = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc');
	var $strip_comments = false;
	var $output_encoding = 'UTF-8';
	var $enable_cache = true;
	var $cache_location = './cache';
	var $cache_name_function = 'md5';
	var $timeout = 10;
	var $useragent = '';
	var $force_fsockopen = false;

	var $replace_url_attributes = array(
		'a' => 'href',
		'area' => 'href',
		'blockquote' => 'cite',
		'del' => 'cite',
		'form' => 'action',
		'img' => array('longdesc', 'src'),
		'input' => 'src',
		'ins' => 'cite',
		'q' => 'cite'
	);

	public function remove_div($enable = true)
	{
		$this->remove_div = (bool) $enable;
	}

	public function set_image_handler($page = false)
	{
		if ($page)
		{
			$this->image_handler = (string) $page;
		}
		else
		{
			$this->image_handler = false;
		}
	}

	public function set_registry(SimplePie_Registry &$registry)
	{
		$this->registry = $registry;
	}

	public function pass_cache_data($enable_cache = true, $cache_location = './cache', $cache_name_function = 'md5', $cache_class = 'SimplePie_Cache')
	{
		if (isset($enable_cache))
		{
			$this->enable_cache = (bool) $enable_cache;
		}

		if ($cache_location)
		{
			$this->cache_location = (string) $cache_location;
		}

		if ($cache_name_function)
		{
			$this->cache_name_function = (string) $cache_name_function;
		}
	}

	public function pass_file_data($file_class = 'SimplePie_File', $timeout = 10, $useragent = '', $force_fsockopen = false)
	{
		if ($timeout)
		{
			$this->timeout = (string) $timeout;
		}

		if ($useragent)
		{
			$this->useragent = (string) $useragent;
		}

		if ($force_fsockopen)
		{
			$this->force_fsockopen = (string) $force_fsockopen;
		}
	}

	public function strip_htmltags($tags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style'))
	{
		if ($tags)
		{
			if (is_array($tags))
			{
				$this->strip_htmltags = $tags;
			}
			else
			{
				$this->strip_htmltags = explode(',', $tags);
			}
		}
		else
		{
			$this->strip_htmltags = false;
		}
	}

	public function encode_instead_of_strip($encode = false)
	{
		$this->encode_instead_of_strip = (bool) $encode;
	}

	public function strip_attributes($attribs = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc'))
	{
		if ($attribs)
		{
			if (is_array($attribs))
			{
				$this->strip_attributes = $attribs;
			}
			else
			{
				$this->strip_attributes = explode(',', $attribs);
			}
		}
		else
		{
			$this->strip_attributes = false;
		}
	}

	public function strip_comments($strip = false)
	{
		$this->strip_comments = (bool) $strip;
	}

	public function set_output_encoding($encoding = 'UTF-8')
	{
		$this->output_encoding = (string) $encoding;
	}

	/**
	 * Set element/attribute key/value pairs of HTML attributes
	 * containing URLs that need to be resolved relative to the feed
	 *
	 * @access public
	 * @since 1.0
	 * @param array $element_attribute Element/attribute key/value pairs
	 */
	public function set_url_replacements($element_attribute = array('a' => 'href', 'area' => 'href', 'blockquote' => 'cite', 'del' => 'cite', 'form' => 'action', 'img' => array('longdesc', 'src'), 'input' => 'src', 'ins' => 'cite', 'q' => 'cite'))
	{
		$this->replace_url_attributes = (array) $element_attribute;
	}

	public function sanitize($data, $type, $base = '')
	{
		$data = trim($data);
		if ($data !== '' || $type & SIMPLEPIE_CONSTRUCT_IRI)
		{
			if ($type & SIMPLEPIE_CONSTRUCT_MAYBE_HTML)
			{
				if (preg_match('/(&(#(x[0-9a-fA-F]+|[0-9]+)|[a-zA-Z0-9]+)|<\/[A-Za-z][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E]*' . SIMPLEPIE_PCRE_HTML_ATTRIBUTE . '>)/', $data))
				{
					$type |= SIMPLEPIE_CONSTRUCT_HTML;
				}
				else
				{
					$type |= SIMPLEPIE_CONSTRUCT_TEXT;
				}
			}

			if ($type & SIMPLEPIE_CONSTRUCT_BASE64)
			{
				$data = base64_decode($data);
			}

			if ($type & (SIMPLEPIE_CONSTRUCT_HTML | SIMPLEPIE_CONSTRUCT_XHTML))
			{

				$document = new DOMDocument();
				$document->encoding = 'UTF-8';
				$data = $this->preprocess($data, $type);

				set_error_handler(array('SimplePie_Misc', 'silence_errors'));
				$document->loadHTML($data);
				restore_error_handler();

				// Strip comments
				if ($this->strip_comments)
				{
					$xpath = new DOMXPath($document);
					$comments = $xpath->query('//comment()');

					foreach ($comments as $comment)
					{
						$comment->parentNode->removeChild($comment);
					}
				}

				// Strip out HTML tags and attributes that might cause various security problems.
				// Based on recommendations by Mark Pilgrim at:
				// http://diveintomark.org/archives/2003/06/12/how_to_consume_rss_safely
				if ($this->strip_htmltags)
				{
					foreach ($this->strip_htmltags as $tag)
					{
						$this->strip_tag($tag, $document, $type);
					}
				}

				if ($this->strip_attributes)
				{
					foreach ($this->strip_attributes as $attrib)
					{
						$this->strip_attr($attrib, $document);
					}
				}

				// Replace relative URLs
				$this->base = $base;
				foreach ($this->replace_url_attributes as $element => $attributes)
				{
					$this->replace_urls($document, $element, $attributes);
				}

				// If image handling (caching, etc.) is enabled, cache and rewrite all the image tags.
				if (isset($this->image_handler) && ((string) $this->image_handler) !== '' && $this->enable_cache)
				{
					$images = $document->getElementsByTagName('img');
					foreach ($images as $img)
					{
						if ($img->hasAttribute('src'))
						{
							$image_url = call_user_func($this->cache_name_function, $img->getAttribute('src'));
							$cache = $this->registry->call('Cache', 'create', array($this->cache_location, $image_url, 'spi'));

							if ($cache->load())
							{
								$img->setAttribute('src', $this->image_handler . $image_url);
							}
							else
							{
								$file = $this->registry->create('File', array($img['attribs']['src']['data'], $this->timeout, 5, array('X-FORWARDED-FOR' => $_SERVER['REMOTE_ADDR']), $this->useragent, $this->force_fsockopen));
								$headers = $file->headers;

								if ($file->success && ($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)))
								{
									if ($cache->save(array('headers' => $file->headers, 'body' => $file->body)))
									{
										$img->setAttribute('src', $this->image_handler . $image_url);
									}
									else
									{
										trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
									}
								}
							}
						}
					}
				}

				// Remove the DOCTYPE
				// Seems to cause segfaulting if we don't do this
				if ($document->firstChild instanceof DOMDocumentType)
				{
					$document->removeChild($document->firstChild);
				}

				// Move everything from the body to the root
				$real_body = $document->getElementsByTagName('body')->item(0)->childNodes->item(0);
				$document->replaceChild($real_body, $document->firstChild);

				// Finally, convert to a HTML string
				$data = trim($document->saveHTML());

				if ($type & SIMPLEPIE_CONSTRUCT_XHTML)
				{
					if ($this->remove_div)
					{
						$data = preg_replace('/^<div' . SIMPLEPIE_PCRE_XML_ATTRIBUTE . '>/', '', $data);
						$data = preg_replace('/<\/div>$/', '', $data);
					}
					else
					{
						$data = preg_replace('/^<div' . SIMPLEPIE_PCRE_XML_ATTRIBUTE . '>/', '<div>', $data);
					}
				}
			}

			if ($type & SIMPLEPIE_CONSTRUCT_IRI)
			{
				$data = $this->registry->call('Misc', 'absolutize_url', array($data, $base));
			}

			if ($type & (SIMPLEPIE_CONSTRUCT_TEXT | SIMPLEPIE_CONSTRUCT_IRI))
			{
				$data = htmlspecialchars($data, ENT_COMPAT, 'UTF-8');
			}

			if ($this->output_encoding !== 'UTF-8')
			{
				$data = $this->registry->call('Misc', 'change_encoding', array($data, 'UTF-8', $this->output_encoding));
			}
		}
		return $data;
	}

	protected function preprocess($html, $type)
	{
		$ret = '';
		if ($type & ~SIMPLEPIE_CONSTRUCT_XHTML)
		{
			// Atom XHTML constructs are wrapped with a div by default
			// Note: No protection if $html contains a stray </div>!
			$html = '<div>' . $html . '</div>';
			$ret .= '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
			$content_type = 'application/xhtml+xml';
		}
		else
		{
			$ret .= '<!DOCTYPE html>';
			$content_type = 'text/html';
		}

		$ret .= '<html><head>';
		$ret .= '<meta http-equiv="Content-Type" content="' . $content_type . '; charset=utf-8" />';
		$ret .= '</head><body>' . $html . '</body></html>';
		return $ret;
	}

	public function replace_urls(&$document, $tag, $attributes)
	{
		if (!is_array($attributes))
		{
			$attributes = array($attributes);
		}

		if (!is_array($this->strip_htmltags) || !in_array($tag, $this->strip_htmltags))
		{
			$elements = $document->getElementsByTagName($tag);
			foreach ($elements as $element)
			{
				foreach ($attributes as $attribute)
				{
					if ($element->hasAttribute($attribute))
					{
						$value = $this->registry->call('Misc', 'absolutize_url', array($element->getAttribute($attribute), $this->base));
						$element->setAttribute($attribute, $value);
					}
				}
			}
		}
	}

	public function do_strip_htmltags($match)
	{
		if ($this->encode_instead_of_strip)
		{
			if (isset($match[4]) && !in_array(strtolower($match[1]), array('script', 'style')))
			{
				$match[1] = htmlspecialchars($match[1], ENT_COMPAT, 'UTF-8');
				$match[2] = htmlspecialchars($match[2], ENT_COMPAT, 'UTF-8');
				return "&lt;$match[1]$match[2]&gt;$match[3]&lt;/$match[1]&gt;";
			}
			else
			{
				return htmlspecialchars($match[0], ENT_COMPAT, 'UTF-8');
			}
		}
		elseif (isset($match[4]) && !in_array(strtolower($match[1]), array('script', 'style')))
		{
			return $match[4];
		}
		else
		{
			return '';
		}
	}

	protected function strip_tag($tag, &$document, $type)
	{
		$xpath = new DOMXPath($document);
		$elements = $xpath->query('body//' . $tag);
		if ($this->encode_instead_of_strip)
		{
			foreach ($elements as $element)
			{
				$fragment = $document->createDocumentFragment();

				// For elements which aren't script or style, include the tag itself
				if (!in_array($tag, array('script', 'style')))
				{
					$text = '<' . $tag;
					if ($element->hasAttributes())
					{
						$attrs = array();
						foreach ($element->attributes as $name => $attr)
						{
							$value = $attr->value;

							// In XHTML, empty values should never exist, so we repeat the value
							if (empty($value) && ($type & SIMPLEPIE_CONSTRUCT_XHTML))
							{
								$value = $name;
							}
							// For HTML, empty is fine
							elseif (empty($value) && ($type & SIMPLEPIE_CONSTRUCT_HTML))
							{
								$attrs[] = $name;
								continue;
							}

							// Standard attribute text
							$attrs[] = $name . '="' . $attr->value . '"';
						}
						$text .= ' ' . implode(' ', $attrs);
					}
					$text .= '>';
					$fragment->appendChild(new DOMText($text));
				}
				foreach ($element->childNodes as $child)
				{
					$fragment->appendChild($child);
				}
				if (!in_array($tag, array('script', 'style')))
				{
					$fragment->appendChild(new DOMText('</' . $tag . '>'));
				}

				$element->parentNode->replaceChild($fragment, $element);
			}

			return;
		}
		elseif (in_array($tag, array('script', 'style')))
		{
			foreach ($elements as $element)
			{
				$element->parentNode->removeChild($element);
			}

			return;
		}
		else
		{
			foreach ($elements as $element)
			{
				$fragment = $document->createDocumentFragment();
				foreach ($element->childNodes as $child)
				{
					$fragment->appendChild($child);
				}

				$element->parentNode->replaceChild($fragment, $element);
			}
		}
	}

	protected function strip_attr($attrib, &$document)
	{
		$xpath = new DOMXPath($document);
		$elements = $xpath->query('//*[@' . $attrib . ']');

		foreach ($elements as $element)
		{
			$element->removeAttribute($attrib);
		}
	}
}

/**
 * Handles everything related to enclosures (including Media RSS and iTunes RSS)
 *
 * Used by {@see SimplePie_Item::get_enclosure()} and {@see SimplePie_Item::get_enclosures()}
 *
 * This class can be overloaded with {@see SimplePie::set_enclosure_class()}
 *
 * @package SimplePie
 */
class SimplePie_Enclosure
{
	/**
	 * @var string
	 * @see get_bitrate()
	 */
	var $bitrate;

	/**
	 * @var array
	 * @see get_captions()
	 */
	var $captions;

	/**
	 * @var array
	 * @see get_categories()
	 */
	var $categories;

	/**
	 * @var int
	 * @see get_channels()
	 */
	var $channels;

	/**
	 * @var SimplePie_Copyright
	 * @see get_copyright()
	 */
	var $copyright;

	/**
	 * @var array
	 * @see get_credits()
	 */
	var $credits;

	/**
	 * @var string
	 * @see get_description()
	 */
	var $description;

	/**
	 * @var int
	 * @see get_duration()
	 */
	var $duration;

	/**
	 * @var string
	 * @see get_expression()
	 */
	var $expression;

	/**
	 * @var string
	 * @see get_framerate()
	 */
	var $framerate;

	/**
	 * @var string
	 * @see get_handler()
	 */
	var $handler;

	/**
	 * @var array
	 * @see get_hashes()
	 */
	var $hashes;

	/**
	 * @var string
	 * @see get_height()
	 */
	var $height;

	/**
	 * @deprecated
	 * @var null
	 */
	var $javascript;

	/**
	 * @var array
	 * @see get_keywords()
	 */
	var $keywords;

	/**
	 * @var string
	 * @see get_language()
	 */
	var $lang;

	/**
	 * @var string
	 * @see get_length()
	 */
	var $length;

	/**
	 * @var string
	 * @see get_link()
	 */
	var $link;

	/**
	 * @var string
	 * @see get_medium()
	 */
	var $medium;

	/**
	 * @var string
	 * @see get_player()
	 */
	var $player;

	/**
	 * @var array
	 * @see get_ratings()
	 */
	var $ratings;

	/**
	 * @var array
	 * @see get_restrictions()
	 */
	var $restrictions;

	/**
	 * @var string
	 * @see get_sampling_rate()
	 */
	var $samplingrate;

	/**
	 * @var array
	 * @see get_thumbnails()
	 */
	var $thumbnails;

	/**
	 * @var string
	 * @see get_title()
	 */
	var $title;

	/**
	 * @var string
	 * @see get_type()
	 */
	var $type;

	/**
	 * @var string
	 * @see get_width()
	 */
	var $width;

	/**
	 * Constructor, used to input the data
	 *
	 * For documentation on all the parameters, see the corresponding
	 * properties and their accessors
	 *
	 * @uses idna_convert If available, this will convert an IDN
	 */
	public function __construct($link = null, $type = null, $length = null, $javascript = null, $bitrate = null, $captions = null, $categories = null, $channels = null, $copyright = null, $credits = null, $description = null, $duration = null, $expression = null, $framerate = null, $hashes = null, $height = null, $keywords = null, $lang = null, $medium = null, $player = null, $ratings = null, $restrictions = null, $samplingrate = null, $thumbnails = null, $title = null, $width = null)
	{
		$this->bitrate = $bitrate;
		$this->captions = $captions;
		$this->categories = $categories;
		$this->channels = $channels;
		$this->copyright = $copyright;
		$this->credits = $credits;
		$this->description = $description;
		$this->duration = $duration;
		$this->expression = $expression;
		$this->framerate = $framerate;
		$this->hashes = $hashes;
		$this->height = $height;
		$this->keywords = $keywords;
		$this->lang = $lang;
		$this->length = $length;
		$this->link = $link;
		$this->medium = $medium;
		$this->player = $player;
		$this->ratings = $ratings;
		$this->restrictions = $restrictions;
		$this->samplingrate = $samplingrate;
		$this->thumbnails = $thumbnails;
		$this->title = $title;
		$this->type = $type;
		$this->width = $width;

		if (class_exists('idna_convert'))
		{
			$idn = new idna_convert();
			$parsed = SimplePie_Misc::parse_url($link);
			$this->link = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], $parsed['fragment']);
		}
		$this->handler = $this->get_handler(); // Needs to load last
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Get the bitrate
	 *
	 * @return string|null
	 */
	public function get_bitrate()
	{
		if ($this->bitrate !== null)
		{
			return $this->bitrate;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get a single caption
	 *
	 * @param int $key
	 * @return SimplePie_Caption|null
	 */
	public function get_caption($key = 0)
	{
		$captions = $this->get_captions();
		if (isset($captions[$key]))
		{
			return $captions[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all captions
	 *
	 * @return array|null Array of {@see SimplePie_Caption} objects
	 */
	public function get_captions()
	{
		if ($this->captions !== null)
		{
			return $this->captions;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get a single category
	 *
	 * @param int $key
	 * @return SimplePie_Category|null
	 */
	public function get_category($key = 0)
	{
		$categories = $this->get_categories();
		if (isset($categories[$key]))
		{
			return $categories[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all categories
	 *
	 * @return array|null Array of {@see SimplePie_Category} objects
	 */
	public function get_categories()
	{
		if ($this->categories !== null)
		{
			return $this->categories;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the number of audio channels
	 *
	 * @return int|null
	 */
	public function get_channels()
	{
		if ($this->channels !== null)
		{
			return $this->channels;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the copyright information
	 *
	 * @return SimplePie_Copyright|null
	 */
	public function get_copyright()
	{
		if ($this->copyright !== null)
		{
			return $this->copyright;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get a single credit
	 *
	 * @param int $key
	 * @return SimplePie_Credit|null
	 */
	public function get_credit($key = 0)
	{
		$credits = $this->get_credits();
		if (isset($credits[$key]))
		{
			return $credits[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all credits
	 *
	 * @return array|null Array of {@see SimplePie_Credit} objects
	 */
	public function get_credits()
	{
		if ($this->credits !== null)
		{
			return $this->credits;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the description of the enclosure
	 *
	 * @return string|null
	 */
	public function get_description()
	{
		if ($this->description !== null)
		{
			return $this->description;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the duration of the enclosure
	 *
	 * @param string $convert Convert seconds into hh:mm:ss
	 * @return string|int|null 'hh:mm:ss' string if `$convert` was specified, otherwise integer (or null if none found)
	 */
	public function get_duration($convert = false)
	{
		if ($this->duration !== null)
		{
			if ($convert)
			{
				$time = SimplePie_Misc::time_hms($this->duration);
				return $time;
			}
			else
			{
				return $this->duration;
			}
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the expression
	 *
	 * @return string Probably one of 'sample', 'full', 'nonstop', 'clip'. Defaults to 'full'
	 */
	public function get_expression()
	{
		if ($this->expression !== null)
		{
			return $this->expression;
		}
		else
		{
			return 'full';
		}
	}

	/**
	 * Get the file extension
	 *
	 * @return string|null
	 */
	public function get_extension()
	{
		if ($this->link !== null)
		{
			$url = SimplePie_Misc::parse_url($this->link);
			if ($url['path'] !== '')
			{
				return pathinfo($url['path'], PATHINFO_EXTENSION);
			}
		}
		return null;
	}

	/**
	 * Get the framerate (in frames-per-second)
	 *
	 * @return string|null
	 */
	public function get_framerate()
	{
		if ($this->framerate !== null)
		{
			return $this->framerate;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the preferred handler
	 *
	 * @return string|null One of 'flash', 'fmedia', 'quicktime', 'wmedia', 'mp3'
	 */
	public function get_handler()
	{
		return $this->get_real_type(true);
	}

	/**
	 * Get a single hash
	 *
	 * @link http://www.rssboard.org/media-rss#media-hash
	 * @param int $key
	 * @return string|null Hash as per `media:hash`, prefixed with "$algo:"
	 */
	public function get_hash($key = 0)
	{
		$hashes = $this->get_hashes();
		if (isset($hashes[$key]))
		{
			return $hashes[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all credits
	 *
	 * @return array|null Array of strings, see {@see get_hash()}
	 */
	public function get_hashes()
	{
		if ($this->hashes !== null)
		{
			return $this->hashes;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the height
	 *
	 * @return string|null
	 */
	public function get_height()
	{
		if ($this->height !== null)
		{
			return $this->height;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the language
	 *
	 * @link http://tools.ietf.org/html/rfc3066
	 * @return string|null Language code as per RFC 3066
	 */
	public function get_language()
	{
		if ($this->lang !== null)
		{
			return $this->lang;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get a single keyword
	 *
	 * @param int $key
	 * @return string|null
	 */
	public function get_keyword($key = 0)
	{
		$keywords = $this->get_keywords();
		if (isset($keywords[$key]))
		{
			return $keywords[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all keywords
	 *
	 * @return array|null Array of strings
	 */
	public function get_keywords()
	{
		if ($this->keywords !== null)
		{
			return $this->keywords;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get length
	 *
	 * @return float Length in bytes
	 */
	public function get_length()
	{
		if ($this->length !== null)
		{
			return $this->length;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the URL
	 *
	 * @return string|null
	 */
	public function get_link()
	{
		if ($this->link !== null)
		{
			return urldecode($this->link);
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the medium
	 *
	 * @link http://www.rssboard.org/media-rss#media-content
	 * @return string|null Should be one of 'image', 'audio', 'video', 'document', 'executable'
	 */
	public function get_medium()
	{
		if ($this->medium !== null)
		{
			return $this->medium;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the player URL
	 *
	 * Typically the same as {@see get_permalink()}
	 * @return string|null Player URL
	 */
	public function get_player()
	{
		if ($this->player !== null)
		{
			return $this->player;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get a single rating
	 *
	 * @param int $key
	 * @return SimplePie_Rating|null
	 */
	public function get_rating($key = 0)
	{
		$ratings = $this->get_ratings();
		if (isset($ratings[$key]))
		{
			return $ratings[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all ratings
	 *
	 * @return array|null Array of {@see SimplePie_Rating} objects
	 */
	public function get_ratings()
	{
		if ($this->ratings !== null)
		{
			return $this->ratings;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get a single restriction
	 *
	 * @param int $key
	 * @return SimplePie_Restriction|null
	 */
	public function get_restriction($key = 0)
	{
		$restrictions = $this->get_restrictions();
		if (isset($restrictions[$key]))
		{
			return $restrictions[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all restrictions
	 *
	 * @return array|null Array of {@see SimplePie_Restriction} objects
	 */
	public function get_restrictions()
	{
		if ($this->restrictions !== null)
		{
			return $this->restrictions;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the sampling rate (in kHz)
	 *
	 * @return string|null
	 */
	public function get_sampling_rate()
	{
		if ($this->samplingrate !== null)
		{
			return $this->samplingrate;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the file size (in MiB)
	 *
	 * @return float|null File size in mebibytes (1048 bytes)
	 */
	public function get_size()
	{
		$length = $this->get_length();
		if ($length !== null)
		{
			return round($length/1048576, 2);
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get a single thumbnail
	 *
	 * @param int $key
	 * @return string|null Thumbnail URL
	 */
	public function get_thumbnail($key = 0)
	{
		$thumbnails = $this->get_thumbnails();
		if (isset($thumbnails[$key]))
		{
			return $thumbnails[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get all thumbnails
	 *
	 * @return array|null Array of thumbnail URLs
	 */
	public function get_thumbnails()
	{
		if ($this->thumbnails !== null)
		{
			return $this->thumbnails;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the title
	 *
	 * @return string|null
	 */
	public function get_title()
	{
		if ($this->title !== null)
		{
			return $this->title;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get mimetype of the enclosure
	 *
	 * @see get_real_type()
	 * @return string|null MIME type
	 */
	public function get_type()
	{
		if ($this->type !== null)
		{
			return $this->type;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the width
	 *
	 * @return string|null
	 */
	public function get_width()
	{
		if ($this->width !== null)
		{
			return $this->width;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Embed the enclosure using `<embed>`
	 *
	 * @deprecated Use the second parameter to {@see embed} instead
	 *
	 * @param array|string $options See first paramter to {@see embed}
	 * @return string HTML string to output
	 */
	public function native_embed($options='')
	{
		return $this->embed($options, true);
	}

	/**
	 * Embed the enclosure using Javascript
	 *
	 * `$options` is an array or comma-separated key:value string, with the
	 * following properties:
	 *
	 * - `alt` (string): Alternate content for when an end-user does not have
	 *    the appropriate handler installed or when a file type is
	 *    unsupported. Can be any text or HTML. Defaults to blank.
	 * - `altclass` (string): If a file type is unsupported, the end-user will
	 *    see the alt text (above) linked directly to the content. That link
	 *    will have this value as its class name. Defaults to blank.
	 * - `audio` (string): This is an image that should be used as a
	 *    placeholder for audio files before they're loaded (QuickTime-only).
	 *    Can be any relative or absolute URL. Defaults to blank.
	 * - `bgcolor` (string): The background color for the media, if not
	 *    already transparent. Defaults to `#ffffff`.
	 * - `height` (integer): The height of the embedded media. Accepts any
	 *    numeric pixel value (such as `360`) or `auto`. Defaults to `auto`,
	 *    and it is recommended that you use this default.
	 * - `loop` (boolean): Do you want the media to loop when its done?
	 *    Defaults to `false`.
	 * - `mediaplayer` (string): The location of the included
	 *    `mediaplayer.swf` file. This allows for the playback of Flash Video
	 *    (`.flv`) files, and is the default handler for non-Odeo MP3's.
	 *    Defaults to blank.
	 * - `video` (string): This is an image that should be used as a
	 *    placeholder for video files before they're loaded (QuickTime-only).
	 *    Can be any relative or absolute URL. Defaults to blank.
	 * - `width` (integer): The width of the embedded media. Accepts any
	 *    numeric pixel value (such as `480`) or `auto`. Defaults to `auto`,
	 *    and it is recommended that you use this default.
	 * - `widescreen` (boolean): Is the enclosure widescreen or standard?
	 *    This applies only to video enclosures, and will automatically resize
	 *    the content appropriately.  Defaults to `false`, implying 4:3 mode.
	 *
	 * Note: Non-widescreen (4:3) mode with `width` and `height` set to `auto`
	 * will default to 480x360 video resolution.  Widescreen (16:9) mode with
	 * `width` and `height` set to `auto` will default to 480x270 video resolution.
	 *
	 * @todo If the dimensions for media:content are defined, use them when width/height are set to 'auto'.
	 * @param array|string $options Comma-separated key:value list, or array
	 * @param bool $native Use `<embed>`
	 * @return string HTML string to output
	 */
	public function embed($options = '', $native = false)
	{
		// Set up defaults
		$audio = '';
		$video = '';
		$alt = '';
		$altclass = '';
		$loop = 'false';
		$width = 'auto';
		$height = 'auto';
		$bgcolor = '#ffffff';
		$mediaplayer = '';
		$widescreen = false;
		$handler = $this->get_handler();
		$type = $this->get_real_type();

		// Process options and reassign values as necessary
		if (is_array($options))
		{
			extract($options);
		}
		else
		{
			$options = explode(',', $options);
			foreach($options as $option)
			{
				$opt = explode(':', $option, 2);
				if (isset($opt[0], $opt[1]))
				{
					$opt[0] = trim($opt[0]);
					$opt[1] = trim($opt[1]);
					switch ($opt[0])
					{
						case 'audio':
							$audio = $opt[1];
							break;

						case 'video':
							$video = $opt[1];
							break;

						case 'alt':
							$alt = $opt[1];
							break;

						case 'altclass':
							$altclass = $opt[1];
							break;

						case 'loop':
							$loop = $opt[1];
							break;

						case 'width':
							$width = $opt[1];
							break;

						case 'height':
							$height = $opt[1];
							break;

						case 'bgcolor':
							$bgcolor = $opt[1];
							break;

						case 'mediaplayer':
							$mediaplayer = $opt[1];
							break;

						case 'widescreen':
							$widescreen = $opt[1];
							break;
					}
				}
			}
		}

		$mime = explode('/', $type, 2);
		$mime = $mime[0];

		// Process values for 'auto'
		if ($width === 'auto')
		{
			if ($mime === 'video')
			{
				if ($height === 'auto')
				{
					$width = 480;
				}
				elseif ($widescreen)
				{
					$width = round((intval($height)/9)*16);
				}
				else
				{
					$width = round((intval($height)/3)*4);
				}
			}
			else
			{
				$width = '100%';
			}
		}

		if ($height === 'auto')
		{
			if ($mime === 'audio')
			{
				$height = 0;
			}
			elseif ($mime === 'video')
			{
				if ($width === 'auto')
				{
					if ($widescreen)
					{
						$height = 270;
					}
					else
					{
						$height = 360;
					}
				}
				elseif ($widescreen)
				{
					$height = round((intval($width)/16)*9);
				}
				else
				{
					$height = round((intval($width)/4)*3);
				}
			}
			else
			{
				$height = 376;
			}
		}
		elseif ($mime === 'audio')
		{
			$height = 0;
		}

		// Set proper placeholder value
		if ($mime === 'audio')
		{
			$placeholder = $audio;
		}
		elseif ($mime === 'video')
		{
			$placeholder = $video;
		}

		$embed = '';

		// Flash
		if ($handler === 'flash')
		{
			if ($native)
			{
				$embed .= "<embed src=\"" . $this->get_link() . "\" pluginspage=\"http://adobe.com/go/getflashplayer\" type=\"$type\" quality=\"high\" width=\"$width\" height=\"$height\" bgcolor=\"$bgcolor\" loop=\"$loop\"></embed>";
			}
			else
			{
				$embed .= "<script type='text/javascript'>embed_flash('$bgcolor', '$width', '$height', '" . $this->get_link() . "', '$loop', '$type');</script>";
			}
		}

		// Flash Media Player file types.
		// Preferred handler for MP3 file types.
		elseif ($handler === 'fmedia' || ($handler === 'mp3' && $mediaplayer !== ''))
		{
			$height += 20;
			if ($native)
			{
				$embed .= "<embed src=\"$mediaplayer\" pluginspage=\"http://adobe.com/go/getflashplayer\" type=\"application/x-shockwave-flash\" quality=\"high\" width=\"$width\" height=\"$height\" wmode=\"transparent\" flashvars=\"file=" . rawurlencode($this->get_link().'?file_extension=.'.$this->get_extension()) . "&autostart=false&repeat=$loop&showdigits=true&showfsbutton=false\"></embed>";
			}
			else
			{
				$embed .= "<script type='text/javascript'>embed_flv('$width', '$height', '" . rawurlencode($this->get_link().'?file_extension=.'.$this->get_extension()) . "', '$placeholder', '$loop', '$mediaplayer');</script>";
			}
		}

		// QuickTime 7 file types.  Need to test with QuickTime 6.
		// Only handle MP3's if the Flash Media Player is not present.
		elseif ($handler === 'quicktime' || ($handler === 'mp3' && $mediaplayer === ''))
		{
			$height += 16;
			if ($native)
			{
				if ($placeholder !== '')
				{
					$embed .= "<embed type=\"$type\" style=\"cursor:hand; cursor:pointer;\" href=\"" . $this->get_link() . "\" src=\"$placeholder\" width=\"$width\" height=\"$height\" autoplay=\"false\" target=\"myself\" controller=\"false\" loop=\"$loop\" scale=\"aspect\" bgcolor=\"$bgcolor\" pluginspage=\"http://apple.com/quicktime/download/\"></embed>";
				}
				else
				{
					$embed .= "<embed type=\"$type\" style=\"cursor:hand; cursor:pointer;\" src=\"" . $this->get_link() . "\" width=\"$width\" height=\"$height\" autoplay=\"false\" target=\"myself\" controller=\"true\" loop=\"$loop\" scale=\"aspect\" bgcolor=\"$bgcolor\" pluginspage=\"http://apple.com/quicktime/download/\"></embed>";
				}
			}
			else
			{
				$embed .= "<script type='text/javascript'>embed_quicktime('$type', '$bgcolor', '$width', '$height', '" . $this->get_link() . "', '$placeholder', '$loop');</script>";
			}
		}

		// Windows Media
		elseif ($handler === 'wmedia')
		{
			$height += 45;
			if ($native)
			{
				$embed .= "<embed type=\"application/x-mplayer2\" src=\"" . $this->get_link() . "\" autosize=\"1\" width=\"$width\" height=\"$height\" showcontrols=\"1\" showstatusbar=\"0\" showdisplay=\"0\" autostart=\"0\"></embed>";
			}
			else
			{
				$embed .= "<script type='text/javascript'>embed_wmedia('$width', '$height', '" . $this->get_link() . "');</script>";
			}
		}

		// Everything else
		else $embed .= '<a href="' . $this->get_link() . '" class="' . $altclass . '">' . $alt . '</a>';

		return $embed;
	}

	/**
	 * Get the real media type
	 *
	 * Often, feeds lie to us, necessitating a bit of deeper inspection. This
	 * converts types to their canonical representations based on the file
	 * extension
	 *
	 * @see get_type()
	 * @param bool $find_handler Internal use only, use {@see get_handler()} instead
	 * @return string MIME type
	 */
	public function get_real_type($find_handler = false)
	{
		// Mime-types by handler.
		$types_flash = array('application/x-shockwave-flash', 'application/futuresplash'); // Flash
		$types_fmedia = array('video/flv', 'video/x-flv','flv-application/octet-stream'); // Flash Media Player
		$types_quicktime = array('audio/3gpp', 'audio/3gpp2', 'audio/aac', 'audio/x-aac', 'audio/aiff', 'audio/x-aiff', 'audio/mid', 'audio/midi', 'audio/x-midi', 'audio/mp4', 'audio/m4a', 'audio/x-m4a', 'audio/wav', 'audio/x-wav', 'video/3gpp', 'video/3gpp2', 'video/m4v', 'video/x-m4v', 'video/mp4', 'video/mpeg', 'video/x-mpeg', 'video/quicktime', 'video/sd-video'); // QuickTime
		$types_wmedia = array('application/asx', 'application/x-mplayer2', 'audio/x-ms-wma', 'audio/x-ms-wax', 'video/x-ms-asf-plugin', 'video/x-ms-asf', 'video/x-ms-wm', 'video/x-ms-wmv', 'video/x-ms-wvx'); // Windows Media
		$types_mp3 = array('audio/mp3', 'audio/x-mp3', 'audio/mpeg', 'audio/x-mpeg'); // MP3

		if ($this->get_type() !== null)
		{
			$type = strtolower($this->type);
		}
		else
		{
			$type = null;
		}

		// If we encounter an unsupported mime-type, check the file extension and guess intelligently.
		if (!in_array($type, array_merge($types_flash, $types_fmedia, $types_quicktime, $types_wmedia, $types_mp3)))
		{
			switch (strtolower($this->get_extension()))
			{
				// Audio mime-types
				case 'aac':
				case 'adts':
					$type = 'audio/acc';
					break;

				case 'aif':
				case 'aifc':
				case 'aiff':
				case 'cdda':
					$type = 'audio/aiff';
					break;

				case 'bwf':
					$type = 'audio/wav';
					break;

				case 'kar':
				case 'mid':
				case 'midi':
				case 'smf':
					$type = 'audio/midi';
					break;

				case 'm4a':
					$type = 'audio/x-m4a';
					break;

				case 'mp3':
				case 'swa':
					$type = 'audio/mp3';
					break;

				case 'wav':
					$type = 'audio/wav';
					break;

				case 'wax':
					$type = 'audio/x-ms-wax';
					break;

				case 'wma':
					$type = 'audio/x-ms-wma';
					break;

				// Video mime-types
				case '3gp':
				case '3gpp':
					$type = 'video/3gpp';
					break;

				case '3g2':
				case '3gp2':
					$type = 'video/3gpp2';
					break;

				case 'asf':
					$type = 'video/x-ms-asf';
					break;

				case 'flv':
					$type = 'video/x-flv';
					break;

				case 'm1a':
				case 'm1s':
				case 'm1v':
				case 'm15':
				case 'm75':
				case 'mp2':
				case 'mpa':
				case 'mpeg':
				case 'mpg':
				case 'mpm':
				case 'mpv':
					$type = 'video/mpeg';
					break;

				case 'm4v':
					$type = 'video/x-m4v';
					break;

				case 'mov':
				case 'qt':
					$type = 'video/quicktime';
					break;

				case 'mp4':
				case 'mpg4':
					$type = 'video/mp4';
					break;

				case 'sdv':
					$type = 'video/sd-video';
					break;

				case 'wm':
					$type = 'video/x-ms-wm';
					break;

				case 'wmv':
					$type = 'video/x-ms-wmv';
					break;

				case 'wvx':
					$type = 'video/x-ms-wvx';
					break;

				// Flash mime-types
				case 'spl':
					$type = 'application/futuresplash';
					break;

				case 'swf':
					$type = 'application/x-shockwave-flash';
					break;
			}
		}

		if ($find_handler)
		{
			if (in_array($type, $types_flash))
			{
				return 'flash';
			}
			elseif (in_array($type, $types_fmedia))
			{
				return 'fmedia';
			}
			elseif (in_array($type, $types_quicktime))
			{
				return 'quicktime';
			}
			elseif (in_array($type, $types_wmedia))
			{
				return 'wmedia';
			}
			elseif (in_array($type, $types_mp3))
			{
				return 'mp3';
			}
			else
			{
				return null;
			}
		}
		else
		{
			return $type;
		}
	}
}

/**
 * Parses the XML Declaration
 *
 * @package SimplePie
 */
class SimplePie_XML_Declaration_Parser
{
	/**
	 * XML Version
	 *
	 * @access public
	 * @var string
	 */
	var $version = '1.0';

	/**
	 * Encoding
	 *
	 * @access public
	 * @var string
	 */
	var $encoding = 'UTF-8';

	/**
	 * Standalone
	 *
	 * @access public
	 * @var bool
	 */
	var $standalone = false;

	/**
	 * Current state of the state machine
	 *
	 * @access private
	 * @var string
	 */
	var $state = 'before_version_name';

	/**
	 * Input data
	 *
	 * @access private
	 * @var string
	 */
	var $data = '';

	/**
	 * Input data length (to avoid calling strlen() everytime this is needed)
	 *
	 * @access private
	 * @var int
	 */
	var $data_length = 0;

	/**
	 * Current position of the pointer
	 *
	 * @var int
	 * @access private
	 */
	var $position = 0;

	/**
	 * Create an instance of the class with the input data
	 *
	 * @access public
	 * @param string $data Input data
	 */
	public function __construct($data)
	{
		$this->data = $data;
		$this->data_length = strlen($this->data);
	}

	/**
	 * Parse the input data
	 *
	 * @access public
	 * @return bool true on success, false on failure
	 */
	public function parse()
	{
		while ($this->state && $this->state !== 'emit' && $this->has_data())
		{
			$state = $this->state;
			$this->$state();
		}
		$this->data = '';
		if ($this->state === 'emit')
		{
			return true;
		}
		else
		{
			$this->version = '';
			$this->encoding = '';
			$this->standalone = '';
			return false;
		}
	}

	/**
	 * Check whether there is data beyond the pointer
	 *
	 * @access private
	 * @return bool true if there is further data, false if not
	 */
	public function has_data()
	{
		return (bool) ($this->position < $this->data_length);
	}

	/**
	 * Advance past any whitespace
	 *
	 * @return int Number of whitespace characters passed
	 */
	public function skip_whitespace()
	{
		$whitespace = strspn($this->data, "\x09\x0A\x0D\x20", $this->position);
		$this->position += $whitespace;
		return $whitespace;
	}

	/**
	 * Read value
	 */
	public function get_value()
	{
		$quote = substr($this->data, $this->position, 1);
		if ($quote === '"' || $quote === "'")
		{
			$this->position++;
			$len = strcspn($this->data, $quote, $this->position);
			if ($this->has_data())
			{
				$value = substr($this->data, $this->position, $len);
				$this->position += $len + 1;
				return $value;
			}
		}
		return false;
	}

	public function before_version_name()
	{
		if ($this->skip_whitespace())
		{
			$this->state = 'version_name';
		}
		else
		{
			$this->state = false;
		}
	}

	public function version_name()
	{
		if (substr($this->data, $this->position, 7) === 'version')
		{
			$this->position += 7;
			$this->skip_whitespace();
			$this->state = 'version_equals';
		}
		else
		{
			$this->state = false;
		}
	}

	public function version_equals()
	{
		if (substr($this->data, $this->position, 1) === '=')
		{
			$this->position++;
			$this->skip_whitespace();
			$this->state = 'version_value';
		}
		else
		{
			$this->state = false;
		}
	}

	public function version_value()
	{
		if ($this->version = $this->get_value())
		{
			$this->skip_whitespace();
			if ($this->has_data())
			{
				$this->state = 'encoding_name';
			}
			else
			{
				$this->state = 'emit';
			}
		}
		else
		{
			$this->state = false;
		}
	}

	public function encoding_name()
	{
		if (substr($this->data, $this->position, 8) === 'encoding')
		{
			$this->position += 8;
			$this->skip_whitespace();
			$this->state = 'encoding_equals';
		}
		else
		{
			$this->state = 'standalone_name';
		}
	}

	public function encoding_equals()
	{
		if (substr($this->data, $this->position, 1) === '=')
		{
			$this->position++;
			$this->skip_whitespace();
			$this->state = 'encoding_value';
		}
		else
		{
			$this->state = false;
		}
	}

	public function encoding_value()
	{
		if ($this->encoding = $this->get_value())
		{
			$this->skip_whitespace();
			if ($this->has_data())
			{
				$this->state = 'standalone_name';
			}
			else
			{
				$this->state = 'emit';
			}
		}
		else
		{
			$this->state = false;
		}
	}

	public function standalone_name()
	{
		if (substr($this->data, $this->position, 10) === 'standalone')
		{
			$this->position += 10;
			$this->skip_whitespace();
			$this->state = 'standalone_equals';
		}
		else
		{
			$this->state = false;
		}
	}

	public function standalone_equals()
	{
		if (substr($this->data, $this->position, 1) === '=')
		{
			$this->position++;
			$this->skip_whitespace();
			$this->state = 'standalone_value';
		}
		else
		{
			$this->state = false;
		}
	}

	public function standalone_value()
	{
		if ($standalone = $this->get_value())
		{
			switch ($standalone)
			{
				case 'yes':
					$this->standalone = true;
					break;

				case 'no':
					$this->standalone = false;
					break;

				default:
					$this->state = false;
					return;
			}

			$this->skip_whitespace();
			if ($this->has_data())
			{
				$this->state = false;
			}
			else
			{
				$this->state = 'emit';
			}
		}
		else
		{
			$this->state = false;
		}
	}
}

/**
 * Used for fetching remote files and reading local files
 *
 * Supports HTTP 1.0 via cURL or fsockopen, with spotty HTTP 1.1 support
 *
 * This class can be overloaded with {@see SimplePie::set_file_class()}
 *
 * @package SimplePie
 * @todo Move to properly supporting RFC2616 (HTTP/1.1)
 */
class SimplePie_File
{
	var $url;
	var $useragent;
	var $success = true;
	var $headers = array();
	var $body;
	var $status_code;
	var $redirects = 0;
	var $error;
	var $method = SIMPLEPIE_FILE_SOURCE_NONE;

	public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false)
	{
		if (class_exists('idna_convert'))
		{
			$idn = new idna_convert();
			$parsed = SimplePie_Misc::parse_url($url);
			$url = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], $parsed['fragment']);
		}
		$this->url = $url;
		$this->useragent = $useragent;
		if (preg_match('/^http(s)?:\/\//i', $url))
		{
			if ($useragent === null)
			{
				$useragent = ini_get('user_agent');
				$this->useragent = $useragent;
			}
			if (!is_array($headers))
			{
				$headers = array();
			}
			if (!$force_fsockopen && function_exists('curl_exec'))
			{
				$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
				$fp = curl_init();
				$headers2 = array();
				foreach ($headers as $key => $value)
				{
					$headers2[] = "$key: $value";
				}
				if (version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>='))
				{
					curl_setopt($fp, CURLOPT_ENCODING, '');
				}
				curl_setopt($fp, CURLOPT_URL, $url);
				curl_setopt($fp, CURLOPT_HEADER, 1);
				curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
				curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
				curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
				curl_setopt($fp, CURLOPT_REFERER, $url);
				curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
				curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
				if (!ini_get('open_basedir') && !ini_get('safe_mode') && version_compare(SimplePie_Misc::get_curl_version(), '7.15.2', '>='))
				{
					curl_setopt($fp, CURLOPT_FOLLOWLOCATION, 1);
					curl_setopt($fp, CURLOPT_MAXREDIRS, $redirects);
				}

				$this->headers = curl_exec($fp);
				if (curl_errno($fp) === 23 || curl_errno($fp) === 61)
				{
					curl_setopt($fp, CURLOPT_ENCODING, 'none');
					$this->headers = curl_exec($fp);
				}
				if (curl_errno($fp))
				{
					$this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp);
					$this->success = false;
				}
				else
				{
					$info = curl_getinfo($fp);
					curl_close($fp);
					$this->headers = explode("\r\n\r\n", $this->headers, $info['redirect_count'] + 1);
					$this->headers = array_pop($this->headers);
					$parser = new SimplePie_HTTP_Parser($this->headers);
					if ($parser->parse())
					{
						$this->headers = $parser->headers;
						$this->body = $parser->body;
						$this->status_code = $parser->status_code;
						if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
						{
							$this->redirects++;
							$location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
							return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
						}
					}
				}
			}
			else
			{
				$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_FSOCKOPEN;
				$url_parts = parse_url($url);
				$socket_host = $url_parts['host'];
				if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https')
				{
					$socket_host = "ssl://$url_parts[host]";
					$url_parts['port'] = 443;
				}
				if (!isset($url_parts['port']))
				{
					$url_parts['port'] = 80;
				}
				$fp = @fsockopen($socket_host, $url_parts['port'], $errno, $errstr, $timeout);
				if (!$fp)
				{
					$this->error = 'fsockopen error: ' . $errstr;
					$this->success = false;
				}
				else
				{
					stream_set_timeout($fp, $timeout);
					if (isset($url_parts['path']))
					{
						if (isset($url_parts['query']))
						{
							$get = "$url_parts[path]?$url_parts[query]";
						}
						else
						{
							$get = $url_parts['path'];
						}
					}
					else
					{
						$get = '/';
					}
					$out = "GET $get HTTP/1.1\r\n";
					$out .= "Host: $url_parts[host]\r\n";
					$out .= "User-Agent: $useragent\r\n";
					if (extension_loaded('zlib'))
					{
						$out .= "Accept-Encoding: x-gzip,gzip,deflate\r\n";
					}

					if (isset($url_parts['user']) && isset($url_parts['pass']))
					{
						$out .= "Authorization: Basic " . base64_encode("$url_parts[user]:$url_parts[pass]") . "\r\n";
					}
					foreach ($headers as $key => $value)
					{
						$out .= "$key: $value\r\n";
					}
					$out .= "Connection: Close\r\n\r\n";
					fwrite($fp, $out);

					$info = stream_get_meta_data($fp);

					$this->headers = '';
					while (!$info['eof'] && !$info['timed_out'])
					{
						$this->headers .= fread($fp, 1160);
						$info = stream_get_meta_data($fp);
					}
					if (!$info['timed_out'])
					{
						$parser = new SimplePie_HTTP_Parser($this->headers);
						if ($parser->parse())
						{
							$this->headers = $parser->headers;
							$this->body = $parser->body;
							$this->status_code = $parser->status_code;
							if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
							{
								$this->redirects++;
								$location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
								return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
							}
							if (isset($this->headers['content-encoding']))
							{
								// Hey, we act dumb elsewhere, so let's do that here too
								switch (strtolower(trim($this->headers['content-encoding'], "\x09\x0A\x0D\x20")))
								{
									case 'gzip':
									case 'x-gzip':
										$decoder = new SimplePie_gzdecode($this->body);
										if (!$decoder->parse())
										{
											$this->error = 'Unable to decode HTTP "gzip" stream';
											$this->success = false;
										}
										else
										{
											$this->body = $decoder->data;
										}
										break;

									case 'deflate':
										if (($body = gzuncompress($this->body)) === false)
										{
											if (($body = gzinflate($this->body)) === false)
											{
												$this->error = 'Unable to decode HTTP "deflate" stream';
												$this->success = false;
											}
										}
										$this->body = $body;
										break;

									default:
										$this->error = 'Unknown content coding';
										$this->success = false;
								}
							}
						}
					}
					else
					{
						$this->error = 'fsocket timed out';
						$this->success = false;
					}
					fclose($fp);
				}
			}
		}
		else
		{
			$this->method = SIMPLEPIE_FILE_SOURCE_LOCAL | SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS;
			if (!$this->body = file_get_contents($url))
			{
				$this->error = 'file_get_contents could not read the file';
				$this->success = false;
			}
		}
	}
}

/**
 * IRI parser/serialiser
 *
 * @package SimplePie
 */
class SimplePie_IRI
{
	/**
	 * Scheme
	 *
	 * @access private
	 * @var string
	 */
	var $scheme;

	/**
	 * User Information
	 *
	 * @access private
	 * @var string
	 */
	var $userinfo;

	/**
	 * Host
	 *
	 * @access private
	 * @var string
	 */
	var $host;

	/**
	 * Port
	 *
	 * @access private
	 * @var string
	 */
	var $port;

	/**
	 * Path
	 *
	 * @access private
	 * @var string
	 */
	var $path;

	/**
	 * Query
	 *
	 * @access private
	 * @var string
	 */
	var $query;

	/**
	 * Fragment
	 *
	 * @access private
	 * @var string
	 */
	var $fragment;

	/**
	 * Whether the object represents a valid IRI
	 *
	 * @access private
	 * @var array
	 */
	var $valid = array();

	/**
	 * Return the entire IRI when you try and read the object as a string
	 *
	 * @access public
	 * @return string
	 */
	public function __toString()
	{
		return $this->get_iri();
	}

	/**
	 * Create a new IRI object, from a specified string
	 *
	 * @access public
	 * @param string $iri
	 * @return SimplePie_IRI
	 */
	public function __construct($iri)
	{
		$iri = (string) $iri;
		if ($iri !== '')
		{
			$parsed = $this->parse_iri($iri);
			$this->set_scheme($parsed['scheme']);
			$this->set_authority($parsed['authority']);
			$this->set_path($parsed['path']);
			$this->set_query($parsed['query']);
			$this->set_fragment($parsed['fragment']);
		}
	}

	/**
	 * Create a new IRI object by resolving a relative IRI
	 *
	 * @static
	 * @access public
	 * @param SimplePie_IRI $base Base IRI
	 * @param string $relative Relative IRI
	 * @return SimplePie_IRI
	 */
	public static function absolutize($base, $relative)
	{
		$relative = (string) $relative;
		if ($relative !== '')
		{
			$relative = new SimplePie_IRI($relative);
			if ($relative->get_scheme() !== null)
			{
				$target = $relative;
			}
			elseif ($base->get_iri() !== null)
			{
				if ($relative->get_authority() !== null)
				{
					$target = $relative;
					$target->set_scheme($base->get_scheme());
				}
				else
				{
					$target = new SimplePie_IRI('');
					$target->set_scheme($base->get_scheme());
					$target->set_userinfo($base->get_userinfo());
					$target->set_host($base->get_host());
					$target->set_port($base->get_port());
					if ($relative->get_path() !== null)
					{
						if (strpos($relative->get_path(), '/') === 0)
						{
							$target->set_path($relative->get_path());
						}
						elseif (($base->get_userinfo() !== null || $base->get_host() !== null || $base->get_port() !== null) && $base->get_path() === null)
						{
							$target->set_path('/' . $relative->get_path());
						}
						elseif (($last_segment = strrpos($base->get_path(), '/')) !== false)
						{
							$target->set_path(substr($base->get_path(), 0, $last_segment + 1) . $relative->get_path());
						}
						else
						{
							$target->set_path($relative->get_path());
						}
						$target->set_query($relative->get_query());
					}
					else
					{
						$target->set_path($base->get_path());
						if ($relative->get_query() !== null)
						{
							$target->set_query($relative->get_query());
						}
						elseif ($base->get_query() !== null)
						{
							$target->set_query($base->get_query());
						}
					}
				}
				$target->set_fragment($relative->get_fragment());
			}
			else
			{
				// No base URL, just return the relative URL
				$target = $relative;
			}
		}
		else
		{
			$target = $base;
		}
		return $target;
	}

	/**
	 * Parse an IRI into scheme/authority/path/query/fragment segments
	 *
	 * @access private
	 * @param string $iri
	 * @return array
	 */
	public function parse_iri($iri)
	{
		preg_match('/^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$/', $iri, $match);
		for ($i = count($match); $i <= 9; $i++)
		{
			$match[$i] = '';
		}
		return array('scheme' => $match[2], 'authority' => $match[4], 'path' => $match[5], 'query' => $match[7], 'fragment' => $match[9]);
	}

	/**
	 * Remove dot segments from a path
	 *
	 * @access private
	 * @param string $input
	 * @return string
	 */
	public function remove_dot_segments($input)
	{
		$output = '';
		while (strpos($input, './') !== false || strpos($input, '/.') !== false || $input === '.' || $input === '..')
		{
			// A: If the input buffer begins with a prefix of "../" or "./", then remove that prefix from the input buffer; otherwise,
			if (strpos($input, '../') === 0)
			{
				$input = substr($input, 3);
			}
			elseif (strpos($input, './') === 0)
			{
				$input = substr($input, 2);
			}
			// B: if the input buffer begins with a prefix of "/./" or "/.", where "." is a complete path segment, then replace that prefix with "/" in the input buffer; otherwise,
			elseif (strpos($input, '/./') === 0)
			{
				$input = substr_replace($input, '/', 0, 3);
			}
			elseif ($input === '/.')
			{
				$input = '/';
			}
			// C: if the input buffer begins with a prefix of "/../" or "/..", where ".." is a complete path segment, then replace that prefix with "/" in the input buffer and remove the last segment and its preceding "/" (if any) from the output buffer; otherwise,
			elseif (strpos($input, '/../') === 0)
			{
				$input = substr_replace($input, '/', 0, 4);
				$output = substr_replace($output, '', strrpos($output, '/'));
			}
			elseif ($input === '/..')
			{
				$input = '/';
				$output = substr_replace($output, '', strrpos($output, '/'));
			}
			// D: if the input buffer consists only of "." or "..", then remove that from the input buffer; otherwise,
			elseif ($input === '.' || $input === '..')
			{
				$input = '';
			}
			// E: move the first path segment in the input buffer to the end of the output buffer, including the initial "/" character (if any) and any subsequent characters up to, but not including, the next "/" character or the end of the input buffer
			elseif (($pos = strpos($input, '/', 1)) !== false)
			{
				$output .= substr($input, 0, $pos);
				$input = substr_replace($input, '', 0, $pos);
			}
			else
			{
				$output .= $input;
				$input = '';
			}
		}
		return $output . $input;
	}

	/**
	 * Replace invalid character with percent encoding
	 *
	 * @param string $string Input string
	 * @param string $valid_chars Valid characters not in iunreserved or iprivate (this is ASCII-only)
	 * @param int $case Normalise case
	 * @param bool $iprivate Allow iprivate
	 * @return string
	 */
	protected function replace_invalid_with_pct_encoding($string, $valid_chars, $case = SIMPLEPIE_SAME_CASE, $iprivate = false)
	{
		// Normalize as many pct-encoded sections as possible
		$string = preg_replace_callback('/(?:%[A-Fa-f0-9]{2})+/', array(&$this, 'remove_iunreserved_percent_encoded'), $string);

		// Replace invalid percent characters
		$string = preg_replace('/%(?![A-Fa-f0-9]{2})/', '%25', $string);

		// Add unreserved and % to $valid_chars (the latter is safe because all
		// pct-encoded sections are now valid).
		$valid_chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~%';

		// Now replace any bytes that aren't allowed with their pct-encoded versions
		$position = 0;
		$strlen = strlen($string);
		while (($position += strspn($string, $valid_chars, $position)) < $strlen)
		{
			$value = ord($string[$position]);

			// Start position
			$start = $position;

			// By default we are valid
			$valid = true;

			// No one byte sequences are valid due to the while.
			// Two byte sequence:
			if (($value & 0xE0) === 0xC0)
			{
				$character = ($value & 0x1F) << 6;
				$length = 2;
				$remaining = 1;
			}
			// Three byte sequence:
			elseif (($value & 0xF0) === 0xE0)
			{
				$character = ($value & 0x0F) << 12;
				$length = 3;
				$remaining = 2;
			}
			// Four byte sequence:
			elseif (($value & 0xF8) === 0xF0)
			{
				$character = ($value & 0x07) << 18;
				$length = 4;
				$remaining = 3;
			}
			// Invalid byte:
			else
			{
				$valid = false;
				$length = 1;
				$remaining = 0;
			}

			if ($remaining)
			{
				if ($position + $length <= $strlen)
				{
					for ($position++; $remaining; $position++)
					{
						$value = ord($string[$position]);

						// Check that the byte is valid, then add it to the character:
						if (($value & 0xC0) === 0x80)
						{
							$character |= ($value & 0x3F) << (--$remaining * 6);
						}
						// If it is invalid, count the sequence as invalid and reprocess the current byte:
						else
						{
							$valid = false;
							$position--;
							break;
						}
					}
				}
				else
				{
					$position = $strlen - 1;
					$valid = false;
				}
			}

			// Percent encode anything invalid or not in ucschar
			if (
				// Invalid sequences
				!$valid
				// Non-shortest form sequences are invalid
				|| $length > 1 && $character <= 0x7F
				|| $length > 2 && $character <= 0x7FF
				|| $length > 3 && $character <= 0xFFFF
				// Outside of range of ucschar codepoints
				// Noncharacters
				|| ($character & 0xFFFE) === 0xFFFE
				|| $character >= 0xFDD0 && $character <= 0xFDEF
				|| (
					// Everything else not in ucschar
					   $character > 0xD7FF && $character < 0xF900
					|| $character < 0xA0
					|| $character > 0xEFFFD
				)
				&& (
					// Everything not in iprivate, if it applies
					   !$iprivate
					|| $character < 0xE000
					|| $character > 0x10FFFD
				)
			)
			{
				// If we were a character, pretend we weren't, but rather an error.
				if ($valid)
					$position--;

				for ($j = $start; $j <= $position; $j++)
				{
					$string = substr_replace($string, sprintf('%%%02X', ord($string[$j])), $j, 1);
					$j += 2;
					$position += 2;
					$strlen += 2;
				}
			}
		}

		// Normalise case
		if ($case & SIMPLEPIE_LOWERCASE)
		{
			$string = strtolower($string);
		}
		elseif ($case & SIMPLEPIE_UPPERCASE)
		{
			$string = strtoupper($string);
		}

		return $string;
	}

	/**
	 * Callback function for preg_replace_callback.
	 *
	 * Removes sequences of percent encoded bytes that represent UTF-8
	 * encoded characters in iunreserved
	 *
	 * @param array $match PCRE match
	 * @return string Replacement
	 */
	protected function remove_iunreserved_percent_encoded($match)
	{
		// As we just have valid percent encoded sequences we can just explode
		// and ignore the first member of the returned array (an empty string).
		$bytes = explode('%', $match[0]);

		// Initialize the new string (this is what will be returned) and that
		// there are no bytes remaining in the current sequence (unsurprising
		// at the first byte!).
		$string = '';
		$remaining = 0;

		// Loop over each and every byte, and set $value to its value
		for ($i = 1, $len = count($bytes); $i < $len; $i++)
		{
			$value = hexdec($bytes[$i]);

			// If we're the first byte of sequence:
			if (!$remaining)
			{
				// Start position
				$start = $i;

				// By default we are valid
				$valid = true;

				// One byte sequence:
				if ($value <= 0x7F)
				{
					$character = $value;
					$length = 1;
				}
				// Two byte sequence:
				elseif (($value & 0xE0) === 0xC0)
				{
					$character = ($value & 0x1F) << 6;
					$length = 2;
					$remaining = 1;
				}
				// Three byte sequence:
				elseif (($value & 0xF0) === 0xE0)
				{
					$character = ($value & 0x0F) << 12;
					$length = 3;
					$remaining = 2;
				}
				// Four byte sequence:
				elseif (($value & 0xF8) === 0xF0)
				{
					$character = ($value & 0x07) << 18;
					$length = 4;
					$remaining = 3;
				}
				// Invalid byte:
				else
				{
					$valid = false;
					$remaining = 0;
				}
			}
			// Continuation byte:
			else
			{
				// Check that the byte is valid, then add it to the character:
				if (($value & 0xC0) === 0x80)
				{
					$remaining--;
					$character |= ($value & 0x3F) << ($remaining * 6);
				}
				// If it is invalid, count the sequence as invalid and reprocess the current byte as the start of a sequence:
				else
				{
					$valid = false;
					$remaining = 0;
					$i--;
				}
			}

			// If we've reached the end of the current byte sequence, append it to Unicode::$data
			if (!$remaining)
			{
				// Percent encode anything invalid or not in iunreserved
				if (
					// Invalid sequences
					!$valid
					// Non-shortest form sequences are invalid
					|| $length > 1 && $character <= 0x7F
					|| $length > 2 && $character <= 0x7FF
					|| $length > 3 && $character <= 0xFFFF
					// Outside of range of iunreserved codepoints
					|| $character < 0x2D
					|| $character > 0xEFFFD
					// Noncharacters
					|| ($character & 0xFFFE) === 0xFFFE
					|| $character >= 0xFDD0 && $character <= 0xFDEF
					// Everything else not in iunreserved (this is all BMP)
					|| $character === 0x2F
					|| $character > 0x39 && $character < 0x41
					|| $character > 0x5A && $character < 0x61
					|| $character > 0x7A && $character < 0x7E
					|| $character > 0x7E && $character < 0xA0
					|| $character > 0xD7FF && $character < 0xF900
				)
				{
					for ($j = $start; $j <= $i; $j++)
					{
						$string .= '%' . strtoupper($bytes[$j]);
					}
				}
				else
				{
					for ($j = $start; $j <= $i; $j++)
					{
						$string .= chr(hexdec($bytes[$j]));
					}
				}
			}
		}

		// If we have any bytes left over they are invalid (i.e., we are
		// mid-way through a multi-byte sequence)
		if ($remaining)
		{
			for ($j = $start; $j < $len; $j++)
			{
				$string .= '%' . strtoupper($bytes[$j]);
			}
		}

		return $string;
	}

	/**
	 * Check if the object represents a valid IRI
	 *
	 * @access public
	 * @return bool
	 */
	public function is_valid()
	{
		return array_sum($this->valid) === count($this->valid);
	}

	/**
	 * Set the scheme. Returns true on success, false on failure (if there are
	 * any invalid characters).
	 *
	 * @access public
	 * @param string $scheme
	 * @return bool
	 */
	public function set_scheme($scheme)
	{
		if ($scheme === null || $scheme === '')
		{
			$this->scheme = null;
		}
		else
		{
			$len = strlen($scheme);
			switch (true)
			{
				case $len > 1:
					if (!strspn($scheme, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-.', 1))
					{
						$this->scheme = null;
						$this->valid[__FUNCTION__] = false;
						return false;
					}

				case $len > 0:
					if (!strspn($scheme, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', 0, 1))
					{
						$this->scheme = null;
						$this->valid[__FUNCTION__] = false;
						return false;
					}
			}
			$this->scheme = strtolower($scheme);
		}
		$this->valid[__FUNCTION__] = true;
		return true;
	}

	/**
	 * Set the authority. Returns true on success, false on failure (if there are
	 * any invalid characters).
	 *
	 * @access public
	 * @param string $authority
	 * @return bool
	 */
	public function set_authority($authority)
	{
		if (($userinfo_end = strrpos($authority, '@')) !== false)
		{
			$userinfo = substr($authority, 0, $userinfo_end);
			$authority = substr($authority, $userinfo_end + 1);
		}
		else
		{
			$userinfo = null;
		}

		if (($port_start = strpos($authority, ':')) !== false)
		{
			$port = substr($authority, $port_start + 1);
			if ($port === false)
			{
				$port = null;
			}
			$authority = substr($authority, 0, $port_start);
		}
		else
		{
			$port = null;
		}

		return $this->set_userinfo($userinfo) && $this->set_host($authority) && $this->set_port($port);
	}

	/**
	 * Set the userinfo.
	 *
	 * @access public
	 * @param string $userinfo
	 * @return bool
	 */
	public function set_userinfo($userinfo)
	{
		if ($userinfo === null || $userinfo === '')
		{
			$this->userinfo = null;
		}
		else
		{
			$this->userinfo = $this->replace_invalid_with_pct_encoding($userinfo, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=:');
		}
		$this->valid[__FUNCTION__] = true;
		return true;
	}

	/**
	 * Set the host. Returns true on success, false on failure (if there are
	 * any invalid characters).
	 *
	 * @access public
	 * @param string $host
	 * @return bool
	 */
	public function set_host($host)
	{
		if ($host === null || $host === '')
		{
			$this->host = null;
			$this->valid[__FUNCTION__] = true;
			return true;
		}
		elseif ($host[0] === '[' && substr($host, -1) === ']')
		{
			if (SimplePie_Net_IPv6::checkIPv6(substr($host, 1, -1)))
			{
				$this->host = $host;
				$this->valid[__FUNCTION__] = true;
				return true;
			}
			else
			{
				$this->host = null;
				$this->valid[__FUNCTION__] = false;
				return false;
			}
		}
		else
		{
			$this->host = $this->replace_invalid_with_pct_encoding($host, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=', SIMPLEPIE_LOWERCASE);
			$this->valid[__FUNCTION__] = true;
			return true;
		}
	}

	/**
	 * Set the port. Returns true on success, false on failure (if there are
	 * any invalid characters).
	 *
	 * @access public
	 * @param string $port
	 * @return bool
	 */
	public function set_port($port)
	{
		if ($port === null || $port === '')
		{
			$this->port = null;
			$this->valid[__FUNCTION__] = true;
			return true;
		}
		elseif (strspn($port, '0123456789') === strlen($port))
		{
			$this->port = (int) $port;
			$this->valid[__FUNCTION__] = true;
			return true;
		}
		else
		{
			$this->port = null;
			$this->valid[__FUNCTION__] = false;
			return false;
		}
	}

	/**
	 * Set the path.
	 *
	 * @access public
	 * @param string $path
	 * @return bool
	 */
	public function set_path($path)
	{
		if ($path === null || $path === '')
		{
			$this->path = null;
			$this->valid[__FUNCTION__] = true;
			return true;
		}
		elseif (substr($path, 0, 2) === '//' && $this->userinfo === null && $this->host === null && $this->port === null)
		{
			$this->path = null;
			$this->valid[__FUNCTION__] = false;
			return false;
		}
		else
		{
			$this->path = $this->replace_invalid_with_pct_encoding($path, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=@/');
			if ($this->scheme !== null)
			{
				$this->path = $this->remove_dot_segments($this->path);
			}
			$this->valid[__FUNCTION__] = true;
			return true;
		}
	}

	/**
	 * Set the query.
	 *
	 * @access public
	 * @param string $query
	 * @return bool
	 */
	public function set_query($query)
	{
		if ($query === null || $query === '')
		{
			$this->query = null;
		}
		else
		{
			$this->query = $this->replace_invalid_with_pct_encoding($query, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$\'()*+,;:@/?&=');
		}
		$this->valid[__FUNCTION__] = true;
		return true;
	}

	/**
	 * Set the fragment.
	 *
	 * @access public
	 * @param string $fragment
	 * @return bool
	 */
	public function set_fragment($fragment)
	{
		if ($fragment === null || $fragment === '')
		{
			$this->fragment = null;
		}
		else
		{
			$this->fragment = $this->replace_invalid_with_pct_encoding($fragment, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=:@/?');
		}
		$this->valid[__FUNCTION__] = true;
		return true;
	}

	/**
	 * Get the complete IRI
	 *
	 * @access public
	 * @return string
	 */
	public function get_iri()
	{
		$iri = '';
		if ($this->scheme !== null)
		{
			$iri .= $this->scheme . ':';
		}
		if (($authority = $this->get_authority()) !== null)
		{
			$iri .= '//' . $authority;
		}
		if ($this->path !== null)
		{
			$iri .= $this->path;
		}
		if ($this->query !== null)
		{
			$iri .= '?' . $this->query;
		}
		if ($this->fragment !== null)
		{
			$iri .= '#' . $this->fragment;
		}

		if ($iri !== '')
		{
			return $iri;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the scheme
	 *
	 * @access public
	 * @return string
	 */
	public function get_scheme()
	{
		return $this->scheme;
	}

	/**
	 * Get the complete authority
	 *
	 * @access public
	 * @return string
	 */
	public function get_authority()
	{
		$authority = '';
		if ($this->userinfo !== null)
		{
			$authority .= $this->userinfo . '@';
		}
		if ($this->host !== null)
		{
			$authority .= $this->host;
		}
		if ($this->port !== null)
		{
			$authority .= ':' . $this->port;
		}

		if ($authority !== '')
		{
			return $authority;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the user information
	 *
	 * @access public
	 * @return string
	 */
	public function get_userinfo()
	{
		return $this->userinfo;
	}

	/**
	 * Get the host
	 *
	 * @access public
	 * @return string
	 */
	public function get_host()
	{
		return $this->host;
	}

	/**
	 * Get the port
	 *
	 * @access public
	 * @return string
	 */
	public function get_port()
	{
		return $this->port;
	}

	/**
	 * Get the path
	 *
	 * @access public
	 * @return string
	 */
	public function get_path()
	{
		return $this->path;
	}

	/**
	 * Get the query
	 *
	 * @access public
	 * @return string
	 */
	public function get_query()
	{
		return $this->query;
	}

	/**
	 * Get the fragment
	 *
	 * @access public
	 * @return string
	 */
	public function get_fragment()
	{
		return $this->fragment;
	}
}

/**
 * Handles `<media:credit>` as defined in Media RSS
 *
 * Used by {@see SimplePie_Enclosure::get_credit()} and {@see SimplePie_Enclosure::get_credits()}
 *
 * This class can be overloaded with {@see SimplePie::set_credit_class()}
 *
 * @package SimplePie
 */
class SimplePie_Credit
{
	/**
	 * Credited role
	 *
	 * @var string
	 * @see get_role()
	 */
	var $role;

	/**
	 * Organizational scheme
	 *
	 * @var string
	 * @see get_scheme()
	 */
	var $scheme;

	/**
	 * Credited name
	 *
	 * @var string
	 * @see get_name()
	 */
	var $name;

	/**
	 * Constructor, used to input the data
	 *
	 * For documentation on all the parameters, see the corresponding
	 * properties and their accessors
	 */
	public function __construct($role = null, $scheme = null, $name = null)
	{
		$this->role = $role;
		$this->scheme = $scheme;
		$this->name = $name;
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Get the role of the person receiving credit
	 *
	 * @return string|null
	 */
	public function get_role()
	{
		if ($this->role !== null)
		{
			return $this->role;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the organizational scheme
	 *
	 * @return string|null
	 */
	public function get_scheme()
	{
		if ($this->scheme !== null)
		{
			return $this->scheme;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the credited person/entity's name
	 *
	 * @return string|null
	 */
	public function get_name()
	{
		if ($this->name !== null)
		{
			return $this->name;
		}
		else
		{
			return null;
		}
	}
}

/**
 * Class to validate and to work with IPv6 addresses.
 *
 * @package SimplePie
 * @copyright 2003-2005 The PHP Group
 * @license http://www.opensource.org/licenses/bsd-license.php
 * @link http://pear.php.net/package/Net_IPv6
 * @author Alexander Merz <alexander.merz@web.de>
 * @author elfrink at introweb dot nl
 * @author Josh Peck <jmp at joshpeck dot org>
 * @author Geoffrey Sneddon <geoffers@gmail.com>
 */
class SimplePie_Net_IPv6
{
	/**
	 * Removes a possible existing netmask specification of an IP address.
	 *
	 * @param string $ip the (compressed) IP as Hex representation
	 * @return string the IP the without netmask
	 * @since 1.1.0
	 * @access public
	 * @static
	 */
	public static function removeNetmaskSpec($ip)
	{
		if (strpos($ip, '/') !== false)
		{
			list($addr, $nm) = explode('/', $ip);
		}
		else
		{
			$addr = $ip;
		}
		return $addr;
	}

	/**
	 * Uncompresses an IPv6 address
	 *
	 * RFC 2373 allows you to compress zeros in an address to '::'. This
	 * function expects an valid IPv6 address and expands the '::' to
	 * the required zeros.
	 *
	 * Example:	 FF01::101	->	FF01:0:0:0:0:0:0:101
	 *			 ::1		->	0:0:0:0:0:0:0:1
	 *
	 * @access public
	 * @static
	 * @param string $ip a valid IPv6-address (hex format)
	 * @return string the uncompressed IPv6-address (hex format)
	 */
	public static function Uncompress($ip)
	{
		$uip = SimplePie_Net_IPv6::removeNetmaskSpec($ip);
		$c1 = -1;
		$c2 = -1;
		if (strpos($ip, '::') !== false)
		{
			list($ip1, $ip2) = explode('::', $ip);
			if ($ip1 === '')
			{
				$c1 = -1;
			}
			else
			{
				$pos = 0;
				if (($pos = substr_count($ip1, ':')) > 0)
				{
					$c1 = $pos;
				}
				else
				{
					$c1 = 0;
				}
			}
			if ($ip2 === '')
			{
				$c2 = -1;
			}
			else
			{
				$pos = 0;
				if (($pos = substr_count($ip2, ':')) > 0)
				{
					$c2 = $pos;
				}
				else
				{
					$c2 = 0;
				}
			}
			if (strstr($ip2, '.'))
			{
				$c2++;
			}
			// ::
			if ($c1 === -1 && $c2 === -1)
			{
				$uip = '0:0:0:0:0:0:0:0';
			}
			// ::xxx
			else if ($c1 === -1)
			{
				$fill = str_repeat('0:', 7 - $c2);
				$uip =	str_replace('::', $fill, $uip);
			}
			// xxx::
			else if ($c2 === -1)
			{
				$fill = str_repeat(':0', 7 - $c1);
				$uip =	str_replace('::', $fill, $uip);
			}
			// xxx::xxx
			else
			{
				$fill = str_repeat(':0:', 6 - $c2 - $c1);
				$uip =	str_replace('::', $fill, $uip);
				$uip =	str_replace('::', ':', $uip);
			}
		}
		return $uip;
	}

	/**
	 * Splits an IPv6 address into the IPv6 and a possible IPv4 part
	 *
	 * RFC 2373 allows you to note the last two parts of an IPv6 address as
	 * an IPv4 compatible address
	 *
	 * Example:	 0:0:0:0:0:0:13.1.68.3
	 *			 0:0:0:0:0:FFFF:129.144.52.38
	 *
	 * @access public
	 * @static
	 * @param string $ip a valid IPv6-address (hex format)
	 * @return array [0] contains the IPv6 part, [1] the IPv4 part (hex format)
	 */
	public static function SplitV64($ip)
	{
		$ip = SimplePie_Net_IPv6::Uncompress($ip);
		if (strstr($ip, '.'))
		{
			$pos = strrpos($ip, ':');
			$ip[$pos] = '_';
			$ipPart = explode('_', $ip);
			return $ipPart;
		}
		else
		{
			return array($ip, '');
		}
	}

	/**
	 * Checks an IPv6 address
	 *
	 * Checks if the given IP is IPv6-compatible
	 *
	 * @access public
	 * @static
	 * @param string $ip a valid IPv6-address
	 * @return bool true if $ip is an IPv6 address
	 */
	public static function checkIPv6($ip)
	{
		$ipPart = SimplePie_Net_IPv6::SplitV64($ip);
		$count = 0;
		if (!empty($ipPart[0]))
		{
			$ipv6 = explode(':', $ipPart[0]);
			for ($i = 0; $i < count($ipv6); $i++)
			{
				$dec = hexdec($ipv6[$i]);
				$hex = strtoupper(preg_replace('/^[0]{1,3}(.*[0-9a-fA-F])$/', '\\1', $ipv6[$i]));
				if ($ipv6[$i] >= 0 && $dec <= 65535 && $hex === strtoupper(dechex($dec)))
				{
					$count++;
				}
			}
			if ($count === 8)
			{
				return true;
			}
			elseif ($count === 6 && !empty($ipPart[1]))
			{
				$ipv4 = explode('.', $ipPart[1]);
				$count = 0;
				foreach ($ipv4 as $ipv4_part)
				{
					if ($ipv4_part >= 0 && $ipv4_part <= 255 && preg_match('/^\d{1,3}$/', $ipv4_part))
					{
						$count++;
					}
				}
				if ($count === 4)
				{
					return true;
				}
			}
			else
			{
				return false;
			}

		}
		else
		{
			return false;
		}
	}
}

/**
 * Manages all category-related data
 *
 * Used by {@see SimplePie_Item::get_category()} and {@see SimplePie_Item::get_categories()}
 *
 * This class can be overloaded with {@see SimplePie::set_category_class()}
 *
 * @package SimplePie
 */
class SimplePie_Category
{
	/**
	 * Category identifier
	 *
	 * @var string
	 * @see get_term
	 */
	var $term;

	/**
	 * Categorization scheme identifier
	 *
	 * @var string
	 * @see get_scheme()
	 */
	var $scheme;

	/**
	 * Human readable label
	 *
	 * @var string
	 * @see get_label()
	 */
	var $label;

	/**
	 * Constructor, used to input the data
	 *
	 * @param string $term
	 * @param string $scheme
	 * @param string $label
	 */
	public function __construct($term = null, $scheme = null, $label = null)
	{
		$this->term = $term;
		$this->scheme = $scheme;
		$this->label = $label;
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Get the category identifier
	 *
	 * @return string|null
	 */
	public function get_term()
	{
		if ($this->term !== null)
		{
			return $this->term;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the categorization scheme identifier
	 *
	 * @return string|null
	 */
	public function get_scheme()
	{
		if ($this->scheme !== null)
		{
			return $this->scheme;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the human readable label
	 *
	 * @return string|null
	 */
	public function get_label()
	{
		if ($this->label !== null)
		{
			return $this->label;
		}
		else
		{
			return $this->get_term();
		}
	}
}

/**
 * Handles `<media:text>` captions as defined in Media RSS.
 *
 * Used by {@see SimplePie_Enclosure::get_caption()} and {@see SimplePie_Enclosure::get_captions()}
 *
 * This class can be overloaded with {@see SimplePie::set_caption_class()}
 *
 * @package SimplePie
 */
class SimplePie_Caption
{
	/**
	 * Content type
	 *
	 * @var string
	 * @see get_type()
	 */
	var $type;

	/**
	 * Language
	 *
	 * @var string
	 * @see get_language()
	 */
	var $lang;

	/**
	 * Start time
	 *
	 * @var string
	 * @see get_starttime()
	 */
	var $startTime;

	/**
	 * End time
	 *
	 * @var string
	 * @see get_endtime()
	 */
	var $endTime;

	/**
	 * Caption text
	 *
	 * @var string
	 * @see get_text()
	 */
	var $text;

	/**
	 * Constructor, used to input the data
	 *
	 * For documentation on all the parameters, see the corresponding
	 * properties and their accessors
	 */
	public function __construct($type = null, $lang = null, $startTime = null, $endTime = null, $text = null)
	{
		$this->type = $type;
		$this->lang = $lang;
		$this->startTime = $startTime;
		$this->endTime = $endTime;
		$this->text = $text;
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Get the end time
	 *
	 * @return string|null Time in the format 'hh:mm:ss.SSS'
	 */
	public function get_endtime()
	{
		if ($this->endTime !== null)
		{
			return $this->endTime;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the language
	 *
	 * @link http://tools.ietf.org/html/rfc3066
	 * @return string|null Language code as per RFC 3066
	 */
	public function get_language()
	{
		if ($this->lang !== null)
		{
			return $this->lang;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the start time
	 *
	 * @return string|null Time in the format 'hh:mm:ss.SSS'
	 */
	public function get_starttime()
	{
		if ($this->startTime !== null)
		{
			return $this->startTime;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the text of the caption
	 *
	 * @return string|null
	 */
	public function get_text()
	{
		if ($this->text !== null)
		{
			return $this->text;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the content type (not MIME type)
	 *
	 * @return string|null Either 'text' or 'html'
	 */
	public function get_type()
	{
		if ($this->type !== null)
		{
			return $this->type;
		}
		else
		{
			return null;
		}
	}
}

/**
 * Date Parser
 *
 * @package SimplePie
 */
class SimplePie_Parse_Date
{
	/**
	 * Input data
	 *
	 * @access protected
	 * @var string
	 */
	var $date;

	/**
	 * List of days, calendar day name => ordinal day number in the week
	 *
	 * @access protected
	 * @var array
	 */
	var $day = array(
		// English
		'mon' => 1,
		'monday' => 1,
		'tue' => 2,
		'tuesday' => 2,
		'wed' => 3,
		'wednesday' => 3,
		'thu' => 4,
		'thursday' => 4,
		'fri' => 5,
		'friday' => 5,
		'sat' => 6,
		'saturday' => 6,
		'sun' => 7,
		'sunday' => 7,
		// Dutch
		'maandag' => 1,
		'dinsdag' => 2,
		'woensdag' => 3,
		'donderdag' => 4,
		'vrijdag' => 5,
		'zaterdag' => 6,
		'zondag' => 7,
		// French
		'lundi' => 1,
		'mardi' => 2,
		'mercredi' => 3,
		'jeudi' => 4,
		'vendredi' => 5,
		'samedi' => 6,
		'dimanche' => 7,
		// German
		'montag' => 1,
		'dienstag' => 2,
		'mittwoch' => 3,
		'donnerstag' => 4,
		'freitag' => 5,
		'samstag' => 6,
		'sonnabend' => 6,
		'sonntag' => 7,
		// Italian
		'lunedì' => 1,
		'martedì' => 2,
		'mercoledì' => 3,
		'giovedì' => 4,
		'venerdì' => 5,
		'sabato' => 6,
		'domenica' => 7,
		// Spanish
		'lunes' => 1,
		'martes' => 2,
		'miércoles' => 3,
		'jueves' => 4,
		'viernes' => 5,
		'sábado' => 6,
		'domingo' => 7,
		// Finnish
		'maanantai' => 1,
		'tiistai' => 2,
		'keskiviikko' => 3,
		'torstai' => 4,
		'perjantai' => 5,
		'lauantai' => 6,
		'sunnuntai' => 7,
		// Hungarian
		'hétfő' => 1,
		'kedd' => 2,
		'szerda' => 3,
		'csütörtok' => 4,
		'péntek' => 5,
		'szombat' => 6,
		'vasárnap' => 7,
		// Greek
		'Δευ' => 1,
		'Τρι' => 2,
		'Τετ' => 3,
		'Πεμ' => 4,
		'Παρ' => 5,
		'Σαβ' => 6,
		'Κυρ' => 7,
	);

	/**
	 * List of months, calendar month name => calendar month number
	 *
	 * @access protected
	 * @var array
	 */
	var $month = array(
		// English
		'jan' => 1,
		'january' => 1,
		'feb' => 2,
		'february' => 2,
		'mar' => 3,
		'march' => 3,
		'apr' => 4,
		'april' => 4,
		'may' => 5,
		// No long form of May
		'jun' => 6,
		'june' => 6,
		'jul' => 7,
		'july' => 7,
		'aug' => 8,
		'august' => 8,
		'sep' => 9,
		'september' => 8,
		'oct' => 10,
		'october' => 10,
		'nov' => 11,
		'november' => 11,
		'dec' => 12,
		'december' => 12,
		// Dutch
		'januari' => 1,
		'februari' => 2,
		'maart' => 3,
		'april' => 4,
		'mei' => 5,
		'juni' => 6,
		'juli' => 7,
		'augustus' => 8,
		'september' => 9,
		'oktober' => 10,
		'november' => 11,
		'december' => 12,
		// French
		'janvier' => 1,
		'février' => 2,
		'mars' => 3,
		'avril' => 4,
		'mai' => 5,
		'juin' => 6,
		'juillet' => 7,
		'août' => 8,
		'septembre' => 9,
		'octobre' => 10,
		'novembre' => 11,
		'décembre' => 12,
		// German
		'januar' => 1,
		'februar' => 2,
		'märz' => 3,
		'april' => 4,
		'mai' => 5,
		'juni' => 6,
		'juli' => 7,
		'august' => 8,
		'september' => 9,
		'oktober' => 10,
		'november' => 11,
		'dezember' => 12,
		// Italian
		'gennaio' => 1,
		'febbraio' => 2,
		'marzo' => 3,
		'aprile' => 4,
		'maggio' => 5,
		'giugno' => 6,
		'luglio' => 7,
		'agosto' => 8,
		'settembre' => 9,
		'ottobre' => 10,
		'novembre' => 11,
		'dicembre' => 12,
		// Spanish
		'enero' => 1,
		'febrero' => 2,
		'marzo' => 3,
		'abril' => 4,
		'mayo' => 5,
		'junio' => 6,
		'julio' => 7,
		'agosto' => 8,
		'septiembre' => 9,
		'setiembre' => 9,
		'octubre' => 10,
		'noviembre' => 11,
		'diciembre' => 12,
		// Finnish
		'tammikuu' => 1,
		'helmikuu' => 2,
		'maaliskuu' => 3,
		'huhtikuu' => 4,
		'toukokuu' => 5,
		'kesäkuu' => 6,
		'heinäkuu' => 7,
		'elokuu' => 8,
		'suuskuu' => 9,
		'lokakuu' => 10,
		'marras' => 11,
		'joulukuu' => 12,
		// Hungarian
		'január' => 1,
		'február' => 2,
		'március' => 3,
		'április' => 4,
		'május' => 5,
		'június' => 6,
		'július' => 7,
		'augusztus' => 8,
		'szeptember' => 9,
		'október' => 10,
		'november' => 11,
		'december' => 12,
		// Greek
		'Ιαν' => 1,
		'Φεβ' => 2,
		'Μάώ' => 3,
		'Μαώ' => 3,
		'Απρ' => 4,
		'Μάι' => 5,
		'Μαϊ' => 5,
		'Μαι' => 5,
		'Ιούν' => 6,
		'Ιον' => 6,
		'Ιούλ' => 7,
		'Ιολ' => 7,
		'Αύγ' => 8,
		'Αυγ' => 8,
		'Σεπ' => 9,
		'Οκτ' => 10,
		'Νοέ' => 11,
		'Δεκ' => 12,
	);

	/**
	 * List of timezones, abbreviation => offset from UTC
	 *
	 * @access protected
	 * @var array
	 */
	var $timezone = array(
		'ACDT' => 37800,
		'ACIT' => 28800,
		'ACST' => 34200,
		'ACT' => -18000,
		'ACWDT' => 35100,
		'ACWST' => 31500,
		'AEDT' => 39600,
		'AEST' => 36000,
		'AFT' => 16200,
		'AKDT' => -28800,
		'AKST' => -32400,
		'AMDT' => 18000,
		'AMT' => -14400,
		'ANAST' => 46800,
		'ANAT' => 43200,
		'ART' => -10800,
		'AZOST' => -3600,
		'AZST' => 18000,
		'AZT' => 14400,
		'BIOT' => 21600,
		'BIT' => -43200,
		'BOT' => -14400,
		'BRST' => -7200,
		'BRT' => -10800,
		'BST' => 3600,
		'BTT' => 21600,
		'CAST' => 18000,
		'CAT' => 7200,
		'CCT' => 23400,
		'CDT' => -18000,
		'CEDT' => 7200,
		'CET' => 3600,
		'CGST' => -7200,
		'CGT' => -10800,
		'CHADT' => 49500,
		'CHAST' => 45900,
		'CIST' => -28800,
		'CKT' => -36000,
		'CLDT' => -10800,
		'CLST' => -14400,
		'COT' => -18000,
		'CST' => -21600,
		'CVT' => -3600,
		'CXT' => 25200,
		'DAVT' => 25200,
		'DTAT' => 36000,
		'EADT' => -18000,
		'EAST' => -21600,
		'EAT' => 10800,
		'ECT' => -18000,
		'EDT' => -14400,
		'EEST' => 10800,
		'EET' => 7200,
		'EGT' => -3600,
		'EKST' => 21600,
		'EST' => -18000,
		'FJT' => 43200,
		'FKDT' => -10800,
		'FKST' => -14400,
		'FNT' => -7200,
		'GALT' => -21600,
		'GEDT' => 14400,
		'GEST' => 10800,
		'GFT' => -10800,
		'GILT' => 43200,
		'GIT' => -32400,
		'GST' => 14400,
		'GST' => -7200,
		'GYT' => -14400,
		'HAA' => -10800,
		'HAC' => -18000,
		'HADT' => -32400,
		'HAE' => -14400,
		'HAP' => -25200,
		'HAR' => -21600,
		'HAST' => -36000,
		'HAT' => -9000,
		'HAY' => -28800,
		'HKST' => 28800,
		'HMT' => 18000,
		'HNA' => -14400,
		'HNC' => -21600,
		'HNE' => -18000,
		'HNP' => -28800,
		'HNR' => -25200,
		'HNT' => -12600,
		'HNY' => -32400,
		'IRDT' => 16200,
		'IRKST' => 32400,
		'IRKT' => 28800,
		'IRST' => 12600,
		'JFDT' => -10800,
		'JFST' => -14400,
		'JST' => 32400,
		'KGST' => 21600,
		'KGT' => 18000,
		'KOST' => 39600,
		'KOVST' => 28800,
		'KOVT' => 25200,
		'KRAST' => 28800,
		'KRAT' => 25200,
		'KST' => 32400,
		'LHDT' => 39600,
		'LHST' => 37800,
		'LINT' => 50400,
		'LKT' => 21600,
		'MAGST' => 43200,
		'MAGT' => 39600,
		'MAWT' => 21600,
		'MDT' => -21600,
		'MESZ' => 7200,
		'MEZ' => 3600,
		'MHT' => 43200,
		'MIT' => -34200,
		'MNST' => 32400,
		'MSDT' => 14400,
		'MSST' => 10800,
		'MST' => -25200,
		'MUT' => 14400,
		'MVT' => 18000,
		'MYT' => 28800,
		'NCT' => 39600,
		'NDT' => -9000,
		'NFT' => 41400,
		'NMIT' => 36000,
		'NOVST' => 25200,
		'NOVT' => 21600,
		'NPT' => 20700,
		'NRT' => 43200,
		'NST' => -12600,
		'NUT' => -39600,
		'NZDT' => 46800,
		'NZST' => 43200,
		'OMSST' => 25200,
		'OMST' => 21600,
		'PDT' => -25200,
		'PET' => -18000,
		'PETST' => 46800,
		'PETT' => 43200,
		'PGT' => 36000,
		'PHOT' => 46800,
		'PHT' => 28800,
		'PKT' => 18000,
		'PMDT' => -7200,
		'PMST' => -10800,
		'PONT' => 39600,
		'PST' => -28800,
		'PWT' => 32400,
		'PYST' => -10800,
		'PYT' => -14400,
		'RET' => 14400,
		'ROTT' => -10800,
		'SAMST' => 18000,
		'SAMT' => 14400,
		'SAST' => 7200,
		'SBT' => 39600,
		'SCDT' => 46800,
		'SCST' => 43200,
		'SCT' => 14400,
		'SEST' => 3600,
		'SGT' => 28800,
		'SIT' => 28800,
		'SRT' => -10800,
		'SST' => -39600,
		'SYST' => 10800,
		'SYT' => 7200,
		'TFT' => 18000,
		'THAT' => -36000,
		'TJT' => 18000,
		'TKT' => -36000,
		'TMT' => 18000,
		'TOT' => 46800,
		'TPT' => 32400,
		'TRUT' => 36000,
		'TVT' => 43200,
		'TWT' => 28800,
		'UYST' => -7200,
		'UYT' => -10800,
		'UZT' => 18000,
		'VET' => -14400,
		'VLAST' => 39600,
		'VLAT' => 36000,
		'VOST' => 21600,
		'VUT' => 39600,
		'WAST' => 7200,
		'WAT' => 3600,
		'WDT' => 32400,
		'WEST' => 3600,
		'WFT' => 43200,
		'WIB' => 25200,
		'WIT' => 32400,
		'WITA' => 28800,
		'WKST' => 18000,
		'WST' => 28800,
		'YAKST' => 36000,
		'YAKT' => 32400,
		'YAPT' => 36000,
		'YEKST' => 21600,
		'YEKT' => 18000,
	);

	/**
	 * Cached PCRE for SimplePie_Parse_Date::$day
	 *
	 * @access protected
	 * @var string
	 */
	var $day_pcre;

	/**
	 * Cached PCRE for SimplePie_Parse_Date::$month
	 *
	 * @access protected
	 * @var string
	 */
	var $month_pcre;

	/**
	 * Array of user-added callback methods
	 *
	 * @access private
	 * @var array
	 */
	var $built_in = array();

	/**
	 * Array of user-added callback methods
	 *
	 * @access private
	 * @var array
	 */
	var $user = array();

	/**
	 * Create new SimplePie_Parse_Date object, and set self::day_pcre,
	 * self::month_pcre, and self::built_in
	 *
	 * @access private
	 */
	public function __construct()
	{
		$this->day_pcre = '(' . implode(array_keys($this->day), '|') . ')';
		$this->month_pcre = '(' . implode(array_keys($this->month), '|') . ')';

		static $cache;
		if (!isset($cache[get_class($this)]))
		{
			$all_methods = get_class_methods($this);

			foreach ($all_methods as $method)
			{
				if (strtolower(substr($method, 0, 5)) === 'date_')
				{
					$cache[get_class($this)][] = $method;
				}
			}
		}

		foreach ($cache[get_class($this)] as $method)
		{
			$this->built_in[] = $method;
		}
	}

	/**
	 * Get the object
	 *
	 * @access public
	 */
	public static function get()
	{
		static $object;
		if (!$object)
		{
			$object = new SimplePie_Parse_Date;
		}
		return $object;
	}

	/**
	 * Parse a date
	 *
	 * @final
	 * @access public
	 * @param string $date Date to parse
	 * @return int Timestamp corresponding to date string, or false on failure
	 */
	public function parse($date)
	{
		foreach ($this->user as $method)
		{
			if (($returned = call_user_func($method, $date)) !== false)
			{
				return $returned;
			}
		}

		foreach ($this->built_in as $method)
		{
			if (($returned = call_user_func(array(&$this, $method), $date)) !== false)
			{
				return $returned;
			}
		}

		return false;
	}

	/**
	 * Add a callback method to parse a date
	 *
	 * @final
	 * @access public
	 * @param callback $callback
	 */
	public function add_callback($callback)
	{
		if (is_callable($callback))
		{
			$this->user[] = $callback;
		}
		else
		{
			trigger_error('User-supplied function must be a valid callback', E_USER_WARNING);
		}
	}

	/**
	 * Parse a superset of W3C-DTF (allows hyphens and colons to be omitted, as
	 * well as allowing any of upper or lower case "T", horizontal tabs, or
	 * spaces to be used as the time seperator (including more than one))
	 *
	 * @access protected
	 * @return int Timestamp
	 */
	public function date_w3cdtf($date)
	{
		static $pcre;
		if (!$pcre)
		{
			$year = '([0-9]{4})';
			$month = $day = $hour = $minute = $second = '([0-9]{2})';
			$decimal = '([0-9]*)';
			$zone = '(?:(Z)|([+\-])([0-9]{1,2}):?([0-9]{1,2}))';
			$pcre = '/^' . $year . '(?:-?' . $month . '(?:-?' . $day . '(?:[Tt\x09\x20]+' . $hour . '(?::?' . $minute . '(?::?' . $second . '(?:.' . $decimal . ')?)?)?' . $zone . ')?)?)?$/';
		}
		if (preg_match($pcre, $date, $match))
		{
			/*
			Capturing subpatterns:
			1: Year
			2: Month
			3: Day
			4: Hour
			5: Minute
			6: Second
			7: Decimal fraction of a second
			8: Zulu
			9: Timezone ±
			10: Timezone hours
			11: Timezone minutes
			*/

			// Fill in empty matches
			for ($i = count($match); $i <= 3; $i++)
			{
				$match[$i] = '1';
			}

			for ($i = count($match); $i <= 7; $i++)
			{
				$match[$i] = '0';
			}

			// Numeric timezone
			if (isset($match[9]) && $match[9] !== '')
			{
				$timezone = $match[10] * 3600;
				$timezone += $match[11] * 60;
				if ($match[9] === '-')
				{
					$timezone = 0 - $timezone;
				}
			}
			else
			{
				$timezone = 0;
			}

			// Convert the number of seconds to an integer, taking decimals into account
			$second = round($match[6] + $match[7] / pow(10, strlen($match[7])));

			return gmmktime($match[4], $match[5], $second, $match[2], $match[3], $match[1]) - $timezone;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Remove RFC822 comments
	 *
	 * @access protected
	 * @param string $data Data to strip comments from
	 * @return string Comment stripped string
	 */
	public function remove_rfc2822_comments($string)
	{
		$string = (string) $string;
		$position = 0;
		$length = strlen($string);
		$depth = 0;

		$output = '';

		while ($position < $length && ($pos = strpos($string, '(', $position)) !== false)
		{
			$output .= substr($string, $position, $pos - $position);
			$position = $pos + 1;
			if ($string[$pos - 1] !== '\\')
			{
				$depth++;
				while ($depth && $position < $length)
				{
					$position += strcspn($string, '()', $position);
					if ($string[$position - 1] === '\\')
					{
						$position++;
						continue;
					}
					elseif (isset($string[$position]))
					{
						switch ($string[$position])
						{
							case '(':
								$depth++;
								break;

							case ')':
								$depth--;
								break;
						}
						$position++;
					}
					else
					{
						break;
					}
				}
			}
			else
			{
				$output .= '(';
			}
		}
		$output .= substr($string, $position);

		return $output;
	}

	/**
	 * Parse RFC2822's date format
	 *
	 * @access protected
	 * @return int Timestamp
	 */
	public function date_rfc2822($date)
	{
		static $pcre;
		if (!$pcre)
		{
			$wsp = '[\x09\x20]';
			$fws = '(?:' . $wsp . '+|' . $wsp . '*(?:\x0D\x0A' . $wsp . '+)+)';
			$optional_fws = $fws . '?';
			$day_name = $this->day_pcre;
			$month = $this->month_pcre;
			$day = '([0-9]{1,2})';
			$hour = $minute = $second = '([0-9]{2})';
			$year = '([0-9]{2,4})';
			$num_zone = '([+\-])([0-9]{2})([0-9]{2})';
			$character_zone = '([A-Z]{1,5})';
			$zone = '(?:' . $num_zone . '|' . $character_zone . ')';
			$pcre = '/(?:' . $optional_fws . $day_name . $optional_fws . ',)?' . $optional_fws . $day . $fws . $month . $fws . $year . $fws . $hour . $optional_fws . ':' . $optional_fws . $minute . '(?:' . $optional_fws . ':' . $optional_fws . $second . ')?' . $fws . $zone . '/i';
		}
		if (preg_match($pcre, $this->remove_rfc2822_comments($date), $match))
		{
			/*
			Capturing subpatterns:
			1: Day name
			2: Day
			3: Month
			4: Year
			5: Hour
			6: Minute
			7: Second
			8: Timezone ±
			9: Timezone hours
			10: Timezone minutes
			11: Alphabetic timezone
			*/

			// Find the month number
			$month = $this->month[strtolower($match[3])];

			// Numeric timezone
			if ($match[8] !== '')
			{
				$timezone = $match[9] * 3600;
				$timezone += $match[10] * 60;
				if ($match[8] === '-')
				{
					$timezone = 0 - $timezone;
				}
			}
			// Character timezone
			elseif (isset($this->timezone[strtoupper($match[11])]))
			{
				$timezone = $this->timezone[strtoupper($match[11])];
			}
			// Assume everything else to be -0000
			else
			{
				$timezone = 0;
			}

			// Deal with 2/3 digit years
			if ($match[4] < 50)
			{
				$match[4] += 2000;
			}
			elseif ($match[4] < 1000)
			{
				$match[4] += 1900;
			}

			// Second is optional, if it is empty set it to zero
			if ($match[7] !== '')
			{
				$second = $match[7];
			}
			else
			{
				$second = 0;
			}

			return gmmktime($match[5], $match[6], $second, $month, $match[2], $match[4]) - $timezone;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Parse RFC850's date format
	 *
	 * @access protected
	 * @return int Timestamp
	 */
	public function date_rfc850($date)
	{
		static $pcre;
		if (!$pcre)
		{
			$space = '[\x09\x20]+';
			$day_name = $this->day_pcre;
			$month = $this->month_pcre;
			$day = '([0-9]{1,2})';
			$year = $hour = $minute = $second = '([0-9]{2})';
			$zone = '([A-Z]{1,5})';
			$pcre = '/^' . $day_name . ',' . $space . $day . '-' . $month . '-' . $year . $space . $hour . ':' . $minute . ':' . $second . $space . $zone . '$/i';
		}
		if (preg_match($pcre, $date, $match))
		{
			/*
			Capturing subpatterns:
			1: Day name
			2: Day
			3: Month
			4: Year
			5: Hour
			6: Minute
			7: Second
			8: Timezone
			*/

			// Month
			$month = $this->month[strtolower($match[3])];

			// Character timezone
			if (isset($this->timezone[strtoupper($match[8])]))
			{
				$timezone = $this->timezone[strtoupper($match[8])];
			}
			// Assume everything else to be -0000
			else
			{
				$timezone = 0;
			}

			// Deal with 2 digit year
			if ($match[4] < 50)
			{
				$match[4] += 2000;
			}
			else
			{
				$match[4] += 1900;
			}

			return gmmktime($match[5], $match[6], $match[7], $month, $match[2], $match[4]) - $timezone;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Parse C99's asctime()'s date format
	 *
	 * @access protected
	 * @return int Timestamp
	 */
	public function date_asctime($date)
	{
		static $pcre;
		if (!$pcre)
		{
			$space = '[\x09\x20]+';
			$wday_name = $this->day_pcre;
			$mon_name = $this->month_pcre;
			$day = '([0-9]{1,2})';
			$hour = $sec = $min = '([0-9]{2})';
			$year = '([0-9]{4})';
			$terminator = '\x0A?\x00?';
			$pcre = '/^' . $wday_name . $space . $mon_name . $space . $day . $space . $hour . ':' . $min . ':' . $sec . $space . $year . $terminator . '$/i';
		}
		if (preg_match($pcre, $date, $match))
		{
			/*
			Capturing subpatterns:
			1: Day name
			2: Month
			3: Day
			4: Hour
			5: Minute
			6: Second
			7: Year
			*/

			$month = $this->month[strtolower($match[2])];
			return gmmktime($match[4], $match[5], $match[6], $month, $match[3], $match[7]);
		}
		else
		{
			return false;
		}
	}

	/**
	 * Parse dates using strtotime()
	 *
	 * @access protected
	 * @return int Timestamp
	 */
	public function date_strtotime($date)
	{
		$strtotime = strtotime($date);
		if ($strtotime === -1 || $strtotime === false)
		{
			return false;
		}
		else
		{
			return $strtotime;
		}
	}
}

/**
 * Handles `<media:rating>` or `<itunes:explicit>` tags as defined in Media RSS and iTunes RSS respectively
 *
 * Used by {@see SimplePie_Enclosure::get_rating()} and {@see SimplePie_Enclosure::get_ratings()}
 *
 * This class can be overloaded with {@see SimplePie::set_rating_class()}
 *
 * @package SimplePie
 */
class SimplePie_Rating
{
	/**
	 * Rating scheme
	 *
	 * @var string
	 * @see get_scheme()
	 */
	var $scheme;

	/**
	 * Rating value
	 *
	 * @var string
	 * @see get_value()
	 */
	var $value;

	/**
	 * Constructor, used to input the data
	 *
	 * For documentation on all the parameters, see the corresponding
	 * properties and their accessors
	 */
	public function __construct($scheme = null, $value = null)
	{
		$this->scheme = $scheme;
		$this->value = $value;
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Get the organizational scheme for the rating
	 *
	 * @return string|null
	 */
	public function get_scheme()
	{
		if ($this->scheme !== null)
		{
			return $this->scheme;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the value of the rating
	 *
	 * @return string|null
	 */
	public function get_value()
	{
		if ($this->value !== null)
		{
			return $this->value;
		}
		else
		{
			return null;
		}
	}
}

/**
 * Manages all author-related data
 *
 * Used by {@see SimplePie_Item::get_author()} and {@see SimplePie::get_authors()}
 *
 * This class can be overloaded with {@see SimplePie::set_author_class()}
 *
 * @package SimplePie
 */
class SimplePie_Author
{
	/**
	 * Author's name
	 *
	 * @var string
	 * @see get_name()
	 */
	var $name;

	/**
	 * Author's link
	 *
	 * @var string
	 * @see get_link()
	 */
	var $link;

	/**
	 * Author's email address
	 *
	 * @var string
	 * @see get_email()
	 */
	var $email;

	/**
	 * Constructor, used to input the data
	 *
	 * @param string $name
	 * @param string $link
	 * @param string $email
	 */
	public function __construct($name = null, $link = null, $email = null)
	{
		$this->name = $name;
		$this->link = $link;
		$this->email = $email;
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Author's name
	 *
	 * @return string|null
	 */
	public function get_name()
	{
		if ($this->name !== null)
		{
			return $this->name;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Author's link
	 *
	 * @return string|null
	 */
	public function get_link()
	{
		if ($this->link !== null)
		{
			return $this->link;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Author's email address
	 *
	 * @return string|null
	 */
	public function get_email()
	{
		if ($this->email !== null)
		{
			return $this->email;
		}
		else
		{
			return null;
		}
	}
}

/**
 * Content-type sniffing
 *
 * Based on the rules in http://tools.ietf.org/html/draft-abarth-mime-sniff-06
 *
 * This is used since we can't always trust Content-Type headers, and is based
 * upon the HTML5 parsing rules.
 *
 *
 * This class can be overloaded with {@see SimplePie::set_content_type_sniffer_class()}
 *
 * @package SimplePie
 */
class SimplePie_Content_Type_Sniffer
{
	/**
	 * File object
	 *
	 * @var SimplePie_File
	 */
	var $file;

	/**
	 * Create an instance of the class with the input file
	 *
	 * @param SimplePie_Content_Type_Sniffer $file Input file
	 */
	public function __construct($file)
	{
		$this->file = $file;
	}

	/**
	 * Get the Content-Type of the specified file
	 *
	 * @return string Actual Content-Type
	 */
	public function get_type()
	{
		if (isset($this->file->headers['content-type']))
		{
			if (!isset($this->file->headers['content-encoding'])
				&& ($this->file->headers['content-type'] === 'text/plain'
					|| $this->file->headers['content-type'] === 'text/plain; charset=ISO-8859-1'
					|| $this->file->headers['content-type'] === 'text/plain; charset=iso-8859-1'
					|| $this->file->headers['content-type'] === 'text/plain; charset=UTF-8'))
			{
				return $this->text_or_binary();
			}

			if (($pos = strpos($this->file->headers['content-type'], ';')) !== false)
			{
				$official = substr($this->file->headers['content-type'], 0, $pos);
			}
			else
			{
				$official = $this->file->headers['content-type'];
			}
			$official = trim(strtolower($official));

			if ($official === 'unknown/unknown'
				|| $official === 'application/unknown')
			{
				return $this->unknown();
			}
			elseif (substr($official, -4) === '+xml'
				|| $official === 'text/xml'
				|| $official === 'application/xml')
			{
				return $official;
			}
			elseif (substr($official, 0, 6) === 'image/')
			{
				if ($return = $this->image())
				{
					return $return;
				}
				else
				{
					return $official;
				}
			}
			elseif ($official === 'text/html')
			{
				return $this->feed_or_html();
			}
			else
			{
				return $official;
			}
		}
		else
		{
			return $this->unknown();
		}
	}

	/**
	 * Sniff text or binary
	 *
	 * @return string Actual Content-Type
	 */
	public function text_or_binary()
	{
		if (substr($this->file->body, 0, 2) === "\xFE\xFF"
			|| substr($this->file->body, 0, 2) === "\xFF\xFE"
			|| substr($this->file->body, 0, 4) === "\x00\x00\xFE\xFF"
			|| substr($this->file->body, 0, 3) === "\xEF\xBB\xBF")
		{
			return 'text/plain';
		}
		elseif (preg_match('/[\x00-\x08\x0E-\x1A\x1C-\x1F]/', $this->file->body))
		{
			return 'application/octect-stream';
		}
		else
		{
			return 'text/plain';
		}
	}

	/**
	 * Sniff unknown
	 *
	 * @return string Actual Content-Type
	 */
	public function unknown()
	{
		$ws = strspn($this->file->body, "\x09\x0A\x0B\x0C\x0D\x20");
		if (strtolower(substr($this->file->body, $ws, 14)) === '<!doctype html'
			|| strtolower(substr($this->file->body, $ws, 5)) === '<html'
			|| strtolower(substr($this->file->body, $ws, 7)) === '<script')
		{
			return 'text/html';
		}
		elseif (substr($this->file->body, 0, 5) === '%PDF-')
		{
			return 'application/pdf';
		}
		elseif (substr($this->file->body, 0, 11) === '%!PS-Adobe-')
		{
			return 'application/postscript';
		}
		elseif (substr($this->file->body, 0, 6) === 'GIF87a'
			|| substr($this->file->body, 0, 6) === 'GIF89a')
		{
			return 'image/gif';
		}
		elseif (substr($this->file->body, 0, 8) === "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
		{
			return 'image/png';
		}
		elseif (substr($this->file->body, 0, 3) === "\xFF\xD8\xFF")
		{
			return 'image/jpeg';
		}
		elseif (substr($this->file->body, 0, 2) === "\x42\x4D")
		{
			return 'image/bmp';
		}
		elseif (substr($this->file->body, 0, 4) === "\x00\x00\x01\x00")
		{
			return 'image/vnd.microsoft.icon';
		}
		else
		{
			return $this->text_or_binary();
		}
	}

	/**
	 * Sniff images
	 *
	 * @return string Actual Content-Type
	 */
	public function image()
	{
		if (substr($this->file->body, 0, 6) === 'GIF87a'
			|| substr($this->file->body, 0, 6) === 'GIF89a')
		{
			return 'image/gif';
		}
		elseif (substr($this->file->body, 0, 8) === "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
		{
			return 'image/png';
		}
		elseif (substr($this->file->body, 0, 3) === "\xFF\xD8\xFF")
		{
			return 'image/jpeg';
		}
		elseif (substr($this->file->body, 0, 2) === "\x42\x4D")
		{
			return 'image/bmp';
		}
		elseif (substr($this->file->body, 0, 4) === "\x00\x00\x01\x00")
		{
			return 'image/vnd.microsoft.icon';
		}
		else
		{
			return false;
		}
	}

	/**
	 * Sniff HTML
	 *
	 * @return string Actual Content-Type
	 */
	public function feed_or_html()
	{
		$len = strlen($this->file->body);
		$pos = strspn($this->file->body, "\x09\x0A\x0D\x20");

		while ($pos < $len)
		{
			switch ($this->file->body[$pos])
			{
				case "\x09":
				case "\x0A":
				case "\x0D":
				case "\x20":
					$pos += strspn($this->file->body, "\x09\x0A\x0D\x20", $pos);
					continue 2;

				case '<':
					$pos++;
					break;

				default:
					return 'text/html';
			}

			if (substr($this->file->body, $pos, 3) === '!--')
			{
				$pos += 3;
				if ($pos < $len && ($pos = strpos($this->file->body, '-->', $pos)) !== false)
				{
					$pos += 3;
				}
				else
				{
					return 'text/html';
				}
			}
			elseif (substr($this->file->body, $pos, 1) === '!')
			{
				if ($pos < $len && ($pos = strpos($this->file->body, '>', $pos)) !== false)
				{
					$pos++;
				}
				else
				{
					return 'text/html';
				}
			}
			elseif (substr($this->file->body, $pos, 1) === '?')
			{
				if ($pos < $len && ($pos = strpos($this->file->body, '?>', $pos)) !== false)
				{
					$pos += 2;
				}
				else
				{
					return 'text/html';
				}
			}
			elseif (substr($this->file->body, $pos, 3) === 'rss'
				|| substr($this->file->body, $pos, 7) === 'rdf:RDF')
			{
				return 'application/rss+xml';
			}
			elseif (substr($this->file->body, $pos, 4) === 'feed')
			{
				return 'application/atom+xml';
			}
			else
			{
				return 'text/html';
			}
		}

		return 'text/html';
	}
}

/**
 * Used for feed auto-discovery
 *
 *
 * This class can be overloaded with {@see SimplePie::set_locator_class()}
 *
 * @package SimplePie
 */
class SimplePie_Locator
{
	var $useragent;
	var $timeout;
	var $file;
	var $local = array();
	var $elsewhere = array();
	var $cached_entities = array();
	var $http_base;
	var $base;
	var $base_location = 0;
	var $checked_feeds = 0;
	var $max_checked_feeds = 10;
	protected $registry;

	public function __construct(&$file, $timeout = 10, $useragent = null, $max_checked_feeds = 10)
	{
		$this->file =& $file;
		$this->useragent = $useragent;
		$this->timeout = $timeout;
		$this->max_checked_feeds = $max_checked_feeds;

		$this->dom = new DOMDocument();

		set_error_handler(array('SimplePie_Misc', 'silence_errors'));
		$this->dom->loadHTML($this->file->body);
		restore_error_handler();
	}

	public function set_registry(SimplePie_Registry &$registry)
	{
		$this->registry = &$registry;
	}

	public function find($type = SIMPLEPIE_LOCATOR_ALL, &$working)
	{
		if ($this->is_feed($this->file))
		{
			return $this->file;
		}

		if ($this->file->method & SIMPLEPIE_FILE_SOURCE_REMOTE)
		{
			$sniffer = $this->registry->create('Content_Type_Sniffer', array($this->file));
			if ($sniffer->get_type() !== 'text/html')
			{
				return null;
			}
		}

		if ($type & ~SIMPLEPIE_LOCATOR_NONE)
		{
			$this->get_base();
		}

		if ($type & SIMPLEPIE_LOCATOR_AUTODISCOVERY && $working = $this->autodiscovery())
		{
			return $working[0];
		}

		if ($type & (SIMPLEPIE_LOCATOR_LOCAL_EXTENSION | SIMPLEPIE_LOCATOR_LOCAL_BODY | SIMPLEPIE_LOCATOR_REMOTE_EXTENSION | SIMPLEPIE_LOCATOR_REMOTE_BODY) && $this->get_links())
		{
			if ($type & SIMPLEPIE_LOCATOR_LOCAL_EXTENSION && $working = $this->extension($this->local))
			{
				return $working;
			}

			if ($type & SIMPLEPIE_LOCATOR_LOCAL_BODY && $working = $this->body($this->local))
			{
				return $working;
			}

			if ($type & SIMPLEPIE_LOCATOR_REMOTE_EXTENSION && $working = $this->extension($this->elsewhere))
			{
				return $working;
			}

			if ($type & SIMPLEPIE_LOCATOR_REMOTE_BODY && $working = $this->body($this->elsewhere))
			{
				return $working;
			}
		}
		return null;
	}

	public function is_feed(&$file)
	{
		if ($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE)
		{
			$sniffer = $this->registry->create('Content_Type_Sniffer', array($file));
			$sniffed = $sniffer->get_type();
			if (in_array($sniffed, array('application/rss+xml', 'application/rdf+xml', 'text/rdf', 'application/atom+xml', 'text/xml', 'application/xml')))
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		elseif ($file->method & SIMPLEPIE_FILE_SOURCE_LOCAL)
		{
			return true;
		}
		else
		{
			return false;
		}
	}

	public function get_base()
	{
		$this->http_base = $this->file->url;
		$this->base = $this->http_base;
		$elements = $this->dom->getElementsByTagName('base');
		foreach ($elements as $element)
		{
			if ($element->hasAttribute('href'))
			{
				$this->base = $this->registry->call('Misc', 'absolutize_url', array(trim($element->getAttribute('href')), $this->http_base));
				$this->base_location = $element->getLineNo();
				break;
			}
		}
	}

	public function autodiscovery()
	{
		$done = array();
		$feeds = array();
		$feeds = array_merge($feeds, $this->search_elements_by_tag('link', $done, $feeds));
		$feeds = array_merge($feeds, $this->search_elements_by_tag('a', $done, $feeds));
		$feeds = array_merge($feeds, $this->search_elements_by_tag('area', $done, $feeds));

		if (!empty($feeds))
		{
			return array_values($feeds);
		}
		else
		{
			return null;
		}
	}

	protected function search_elements_by_tag($name, &$done, $feeds)
	{
		$links = $this->dom->getElementsByTagName($name);
		foreach ($links as $link)
		{
			if ($this->checked_feeds === $this->max_checked_feeds)
			{
				break;
			}
			if ($link->hasAttribute('href') && $link->hasAttribute('rel'))
			{
				$rel = array_unique($this->registry->call('Misc', 'space_seperated_tokens', array(strtolower($link->getAttribute('rel')))));

				if ($this->base_location < $link->getLineNo())
				{
					$href = $this->registry->call('Misc', 'absolutize_url', array(trim($link->getAttribute('href')), $this->base));
				}
				else
				{
					$href = $this->registry->call('Misc', 'absolutize_url', array(trim($link->getAttribute('href')), $this->http_base));
				}

				if (!in_array($href, $done) && in_array('feed', $rel) || (in_array('alternate', $rel) && !in_array('stylesheet', $rel) && $link->hasAttribute('type') && in_array(strtolower($this->registry->call('Misc', 'parse_mime', array($link->getAttribute('type')))), array('application/rss+xml', 'application/atom+xml'))) && !isset($feeds[$href]))
				{
					$this->checked_feeds++;
					$headers = array(
						'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
					);
					$feed = $this->registry->create('File', array($href, $this->timeout, 5, $headers, $this->useragent));
					if ($feed->success && ($feed->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($feed->status_code === 200 || $feed->status_code > 206 && $feed->status_code < 300)) && $this->is_feed($feed))
					{
						$feeds[$href] = $feed;
					}
				}
				$done[] = $href;
			}
		}

		return $feeds;
	}

	public function get_links()
	{
		$links = $this->dom->getElementsByTagName('a');
		foreach ($links as $link)
		{
			if ($link->hasAttribute('href'))
			{
				$href = trim($link->getAttribute('href'));
				$parsed = $this->registry->call('Misc', 'parse_url', array($href));
				if ($parsed['scheme'] === '' || preg_match('/^(http(s)|feed)?$/i', $parsed['scheme']))
				{
					if ($this->base_location < $link->getLineNo())
					{
						$href = $this->registry->call('Misc', 'absolutize_url', array(trim($link->getAttribute('href')), $this->base));
					}
					else
					{
						$href = $this->registry->call('Misc', 'absolutize_url', array(trim($link->getAttribute('href')), $this->http_base));
					}

					$current = $this->registry->call('Misc', 'parse_url', array($this->file->url));

					if ($parsed['authority'] === '' || $parsed['authority'] === $current['authority'])
					{
						$this->local[] = $href;
					}
					else
					{
						$this->elsewhere[] = $href;
					}
				}
			}
		}
		$this->local = array_unique($this->local);
		$this->elsewhere = array_unique($this->elsewhere);
		if (!empty($this->local) || !empty($this->elsewhere))
		{
			return true;
		}
		return null;
	}

	public function extension(&$array)
	{
		foreach ($array as $key => $value)
		{
			if ($this->checked_feeds === $this->max_checked_feeds)
			{
				break;
			}
			if (in_array(strtolower(strrchr($value, '.')), array('.rss', '.rdf', '.atom', '.xml')))
			{
				$this->checked_feeds++;

				$headers = array(
					'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
				);
				$feed = $this->registry->create('File', array($value, $this->timeout, 5, $headers, $this->useragent));
				if ($feed->success && ($feed->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($feed->status_code === 200 || $feed->status_code > 206 && $feed->status_code < 300)) && $this->is_feed($feed))
				{
					return $feed;
				}
				else
				{
					unset($array[$key]);
				}
			}
		}
		return null;
	}

	public function body(&$array)
	{
		foreach ($array as $key => $value)
		{
			if ($this->checked_feeds === $this->max_checked_feeds)
			{
				break;
			}
			if (preg_match('/(rss|rdf|atom|xml)/i', $value))
			{
				$this->checked_feeds++;
				$headers = array(
					'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
				);
				$feed = $this->registry->create('File', array($value, $this->timeout, 5, null, $this->useragent));
				if ($feed->success && ($feed->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($feed->status_code === 200 || $feed->status_code > 206 && $feed->status_code < 300)) && $this->is_feed($feed))
				{
					return $feed;
				}
				else
				{
					unset($array[$key]);
				}
			}
		}
		return null;
	}
}

/**
 * Manages all item-related data
 *
 * Used by {@see SimplePie::get_item()} and {@see SimplePie::get_items()}
 *
 * This class can be overloaded with {@see SimplePie::set_item_class()}
 *
 * @package SimplePie
 */
class SimplePie_Item
{
	var $feed;
	var $data = array();
	protected $registry;

	public function __construct($feed, $data)
	{
		$this->feed = $feed;
		$this->data = $data;
	}

	public function set_registry(SimplePie_Registry &$registry)
	{
		$this->registry = &$registry;
	}

	public function __toString()
	{
		return md5(serialize($this->data));
	}

	/**
	 * Remove items that link back to this before destroying this object
	 */
	public function __destruct()
	{
		if ((version_compare(PHP_VERSION, '5.3', '<') || !gc_enabled()) && !ini_get('zend.ze1_compatibility_mode'))
		{
			unset($this->feed);
		}
	}

	public function get_item_tags($namespace, $tag)
	{
		if (isset($this->data['child'][$namespace][$tag]))
		{
			return $this->data['child'][$namespace][$tag];
		}
		else
		{
			return null;
		}
	}

	public function get_base($element = array())
	{
		return $this->feed->get_base($element);
	}

	public function sanitize($data, $type, $base = '')
	{
		return $this->feed->sanitize($data, $type, $base);
	}

	public function get_feed()
	{
		return $this->feed;
	}

	public function get_id($hash = false)
	{
		if (!$hash)
		{
			if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'id'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'id'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'guid'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'identifier'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'identifier'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif (isset($this->data['attribs'][SIMPLEPIE_NAMESPACE_RDF]['about']))
			{
				return $this->sanitize($this->data['attribs'][SIMPLEPIE_NAMESPACE_RDF]['about'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif (($return = $this->get_permalink()) !== null)
			{
				return $return;
			}
			elseif (($return = $this->get_title()) !== null)
			{
				return $return;
			}
		}
		if ($this->get_permalink() !== null || $this->get_title() !== null)
		{
			return md5($this->get_permalink() . $this->get_title());
		}
		else
		{
			return md5(serialize($this->data));
		}
	}

	public function get_title()
	{
		if (!isset($this->data['title']))
		{
			if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			else
			{
				$this->data['title'] = null;
			}
		}
		return $this->data['title'];
	}

	public function get_description($description_only = false)
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'summary'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'summary'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML);
		}

		elseif (!$description_only)
		{
			return $this->get_content(true);
		}
		else
		{
			return null;
		}
	}

	public function get_content($content_only = false)
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'content'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_content_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'content'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10_MODULES_CONTENT, 'encoded'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif (!$content_only)
		{
			return $this->get_description(true);
		}
		else
		{
			return null;
		}
	}

	public function get_category($key = 0)
	{
		$categories = $this->get_categories();
		if (isset($categories[$key]))
		{
			return $categories[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_categories()
	{
		$categories = array();

		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
		{
			$term = null;
			$scheme = null;
			$label = null;
			if (isset($category['attribs']['']['term']))
			{
				$term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['scheme']))
			{
				$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['label']))
			{
				$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			$categories[] = $this->registry->create('Category', array($term, $scheme, $label));
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'category') as $category)
		{
			// This is really the label, but keep this as the term also for BC.
			// Label will also work on retrieving because that falls back to term.
			$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			if (isset($category['attribs']['']['domain']))
			{
				$scheme = $this->sanitize($category['attribs']['']['domain'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			else
			{
				$scheme = null;
			}
			$categories[] = $this->registry->create('Category', array($term, $scheme, null));
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
		{
			$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
		{
			$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}

		if (!empty($categories))
		{
			return $this->registry->call('Misc', 'array_unique', array($categories));
		}
		else
		{
			return null;
		}
	}

	public function get_author($key = 0)
	{
		$authors = $this->get_authors();
		if (isset($authors[$key]))
		{
			return $authors[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_contributor($key = 0)
	{
		$contributors = $this->get_contributors();
		if (isset($contributors[$key]))
		{
			return $contributors[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_contributors()
	{
		$contributors = array();
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'contributor') as $contributor)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$contributors[] = $this->registry->create('Author', array($name, $uri, $email));
			}
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'contributor') as $contributor)
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$contributors[] = $this->registry->create('Author', array($name, $url, $email));
			}
		}

		if (!empty($contributors))
		{
			return $this->registry->call('Misc', 'array_unique', array($contributors));
		}
		else
		{
			return null;
		}
	}

	public function get_authors()
	{
		$authors = array();
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author') as $author)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$authors[] = $this->registry->create('Author', array($name, $uri, $email));
			}
		}
		if ($author = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'author'))
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$authors[] = $this->registry->create('Author', array($name, $url, $email));
			}
		}
		if ($author = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'author'))
		{
			$authors[] = $this->registry->create('Author', array(null, null, $this->sanitize($author[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT)));
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'creator') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'creator') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'author') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}

		if (!empty($authors))
		{
			return $this->registry->call('Misc', 'array_unique', array($authors));
		}
		elseif (($source = $this->get_source()) && ($authors = $source->get_authors()))
		{
			return $authors;
		}
		elseif ($authors = $this->feed->get_authors())
		{
			return $authors;
		}
		else
		{
			return null;
		}
	}

	public function get_copyright()
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_date($date_format = 'j F Y, g:i a')
	{
		if (!isset($this->data['date']))
		{
			if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'published'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'updated'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'issued'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'created'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'modified'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'pubDate'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'date'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'date'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}

			if (!empty($this->data['date']['raw']))
			{
				$parser = $this->registry->call('Parse_Date', 'get');
				$this->data['date']['parsed'] = $parser->parse($this->data['date']['raw']);
			}
			else
			{
				$this->data['date'] = null;
			}
		}
		if ($this->data['date'])
		{
			$date_format = (string) $date_format;
			switch ($date_format)
			{
				case '':
					return $this->sanitize($this->data['date']['raw'], SIMPLEPIE_CONSTRUCT_TEXT);

				case 'U':
					return $this->data['date']['parsed'];

				default:
					return date($date_format, $this->data['date']['parsed']);
			}
		}
		else
		{
			return null;
		}
	}

	public function get_updated_date($date_format = 'j F Y, g:i a')
	{
		if (!isset($this->data['updated']))
		{
			if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'updated'))
			{
				$this->data['updated']['raw'] = $return[0]['data'];
			}

			if (!empty($this->data['updated']['raw']))
			{
				$parser = $this->registry->call('Parse_Date', 'get');
				$this->data['updated']['parsed'] = $parser->parse($this->data['date']['raw']);
			}
			else
			{
				$this->data['updated'] = null;
			}
		}
		if ($this->data['updated'])
		{
			$date_format = (string) $date_format;
			switch ($date_format)
			{
				case '':
					return $this->sanitize($this->data['updated']['raw'], SIMPLEPIE_CONSTRUCT_TEXT);

				case 'U':
					return $this->data['updated']['parsed'];

				default:
					return date($date_format, $this->data['updated']['parsed']);
			}
		}
		else
		{
			return null;
		}
	}
	
	public function get_local_date($date_format = '%c')
	{
		if (!$date_format)
		{
			return $this->sanitize($this->get_date(''), SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (($date = $this->get_date('U')) !== null && $date !== false)
		{
			return strftime($date_format, $date);
		}
		else
		{
			return null;
		}
	}

	public function get_gmdate($date_format = 'j F Y, g:i a')
	{
		$date = $this->get_date('U');
		if ($date === null)
		{
			return null;
		}

		return gmdate($date_format, $date);
	}

	public function get_updated_gmdate($date_format = 'j F Y, g:i a')
	{
		$date = $this->get_updated_date('U');
		if ($date === null)
		{
			return null;
		}

		return gmdate($date_format, $date);
	}

	public function get_permalink()
	{
		$link = $this->get_link();
		$enclosure = $this->get_enclosure(0);
		if ($link !== null)
		{
			return $link;
		}
		elseif ($enclosure !== null)
		{
			return $enclosure->get_link();
		}
		else
		{
			return null;
		}
	}

	public function get_link($key = 0, $rel = 'alternate')
	{
		$links = $this->get_links($rel);
		if ($links[$key] !== null)
		{
			return $links[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_links($rel = 'alternate')
	{
		if (!isset($this->data['links']))
		{
			$this->data['links'] = array();
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link') as $link)
			{
				if (isset($link['attribs']['']['href']))
				{
					$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
					$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));

				}
			}
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link') as $link)
			{
				if (isset($link['attribs']['']['href']))
				{
					$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
					$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
				}
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'guid'))
			{
				if (!isset($links[0]['attribs']['']['isPermaLink']) || strtolower(trim($links[0]['attribs']['']['isPermaLink'])) === 'true')
				{
					$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
				}
			}

			$keys = array_keys($this->data['links']);
			foreach ($keys as $key)
			{
				if ($this->registry->call('Misc', 'is_isegment_nz_nc', array($key)))
				{
					if (isset($this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]))
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]);
						$this->data['links'][$key] =& $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key];
					}
					else
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] =& $this->data['links'][$key];
					}
				}
				elseif (substr($key, 0, 41) === SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY)
				{
					$this->data['links'][substr($key, 41)] =& $this->data['links'][$key];
				}
				$this->data['links'][$key] = array_unique($this->data['links'][$key]);
			}
		}
		if (isset($this->data['links'][$rel]))
		{
			return $this->data['links'][$rel];
		}
		else
		{
			return null;
		}
	}

	/**
	 * @todo Add ability to prefer one type of content over another (in a media group).
	 */
	public function get_enclosure($key = 0, $prefer = null)
	{
		$enclosures = $this->get_enclosures();
		if (isset($enclosures[$key]))
		{
			return $enclosures[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Grabs all available enclosures (podcasts, etc.)
	 *
	 * Supports the <enclosure> RSS tag, as well as Media RSS and iTunes RSS.
	 *
	 * At this point, we're pretty much assuming that all enclosures for an item are the same content.  Anything else is too complicated to properly support.
	 *
	 * @todo Add support for end-user defined sorting of enclosures by type/handler (so we can prefer the faster-loading FLV over MP4).
	 * @todo If an element exists at a level, but it's value is empty, we should fall back to the value from the parent (if it exists).
	 */
	public function get_enclosures()
	{
		if (!isset($this->data['enclosures']))
		{
			$this->data['enclosures'] = array();

			// Elements
			$captions_parent = null;
			$categories_parent = null;
			$copyrights_parent = null;
			$credits_parent = null;
			$description_parent = null;
			$duration_parent = null;
			$hashes_parent = null;
			$keywords_parent = null;
			$player_parent = null;
			$ratings_parent = null;
			$restrictions_parent = null;
			$thumbnails_parent = null;
			$title_parent = null;

			// Let's do the channel and item-level ones first, and just re-use them if we need to.
			$parent = $this->get_feed();

			// CAPTIONS
			if ($captions = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'text'))
			{
				foreach ($captions as $caption)
				{
					$caption_type = null;
					$caption_lang = null;
					$caption_startTime = null;
					$caption_endTime = null;
					$caption_text = null;
					if (isset($caption['attribs']['']['type']))
					{
						$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['lang']))
					{
						$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['start']))
					{
						$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['end']))
					{
						$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['data']))
					{
						$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$captions_parent[] = $this->registry->create('Caption', array($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text));
				}
			}
			elseif ($captions = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'text'))
			{
				foreach ($captions as $caption)
				{
					$caption_type = null;
					$caption_lang = null;
					$caption_startTime = null;
					$caption_endTime = null;
					$caption_text = null;
					if (isset($caption['attribs']['']['type']))
					{
						$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['lang']))
					{
						$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['start']))
					{
						$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['end']))
					{
						$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['data']))
					{
						$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$captions_parent[] = $this->registry->create('Caption', array($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text));
				}
			}
			if (is_array($captions_parent))
			{
				$captions_parent = array_values($this->registry->call('Misc', 'array_unique', array($captions_parent)));
			}

			// CATEGORIES
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'category') as $category)
			{
				$term = null;
				$scheme = null;
				$label = null;
				if (isset($category['data']))
				{
					$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($category['attribs']['']['scheme']))
				{
					$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				else
				{
					$scheme = 'http://search.yahoo.com/mrss/category_schema';
				}
				if (isset($category['attribs']['']['label']))
				{
					$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$categories_parent[] = $this->registry->create('Category', array($term, $scheme, $label));
			}
			foreach ((array) $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'category') as $category)
			{
				$term = null;
				$scheme = null;
				$label = null;
				if (isset($category['data']))
				{
					$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($category['attribs']['']['scheme']))
				{
					$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				else
				{
					$scheme = 'http://search.yahoo.com/mrss/category_schema';
				}
				if (isset($category['attribs']['']['label']))
				{
					$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$categories_parent[] = $this->registry->create('Category', array($term, $scheme, $label));
			}
			foreach ((array) $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'category') as $category)
			{
				$term = null;
				$scheme = 'http://www.itunes.com/dtds/podcast-1.0.dtd';
				$label = null;
				if (isset($category['attribs']['']['text']))
				{
					$label = $this->sanitize($category['attribs']['']['text'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$categories_parent[] = $this->registry->create('Category', array($term, $scheme, $label));

				if (isset($category['child'][SIMPLEPIE_NAMESPACE_ITUNES]['category']))
				{
					foreach ((array) $category['child'][SIMPLEPIE_NAMESPACE_ITUNES]['category'] as $subcategory)
					{
						if (isset($subcategory['attribs']['']['text']))
						{
							$label = $this->sanitize($subcategory['attribs']['']['text'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						$categories_parent[] = $this->registry->create('Category', array($term, $scheme, $label));
					}
				}
			}
			if (is_array($categories_parent))
			{
				$categories_parent = array_values($this->registry->call('Misc', 'array_unique', array($categories_parent)));
			}

			// COPYRIGHT
			if ($copyright = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'copyright'))
			{
				$copyright_url = null;
				$copyright_label = null;
				if (isset($copyright[0]['attribs']['']['url']))
				{
					$copyright_url = $this->sanitize($copyright[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($copyright[0]['data']))
				{
					$copyright_label = $this->sanitize($copyright[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$copyrights_parent = $this->registry->create('Copyright', array($copyright_url, $copyright_label));
			}
			elseif ($copyright = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'copyright'))
			{
				$copyright_url = null;
				$copyright_label = null;
				if (isset($copyright[0]['attribs']['']['url']))
				{
					$copyright_url = $this->sanitize($copyright[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($copyright[0]['data']))
				{
					$copyright_label = $this->sanitize($copyright[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$copyrights_parent = $this->registry->create('Copyright', array($copyright_url, $copyright_label));
			}

			// CREDITS
			if ($credits = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'credit'))
			{
				foreach ($credits as $credit)
				{
					$credit_role = null;
					$credit_scheme = null;
					$credit_name = null;
					if (isset($credit['attribs']['']['role']))
					{
						$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($credit['attribs']['']['scheme']))
					{
						$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$credit_scheme = 'urn:ebu';
					}
					if (isset($credit['data']))
					{
						$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$credits_parent[] = $this->registry->create('Credit', array($credit_role, $credit_scheme, $credit_name));
				}
			}
			elseif ($credits = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'credit'))
			{
				foreach ($credits as $credit)
				{
					$credit_role = null;
					$credit_scheme = null;
					$credit_name = null;
					if (isset($credit['attribs']['']['role']))
					{
						$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($credit['attribs']['']['scheme']))
					{
						$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$credit_scheme = 'urn:ebu';
					}
					if (isset($credit['data']))
					{
						$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$credits_parent[] = $this->registry->create('Credit', array($credit_role, $credit_scheme, $credit_name));
				}
			}
			if (is_array($credits_parent))
			{
				$credits_parent = array_values($this->registry->call('Misc', 'array_unique', array($credits_parent)));
			}

			// DESCRIPTION
			if ($description_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'description'))
			{
				if (isset($description_parent[0]['data']))
				{
					$description_parent = $this->sanitize($description_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}
			elseif ($description_parent = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'description'))
			{
				if (isset($description_parent[0]['data']))
				{
					$description_parent = $this->sanitize($description_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}

			// DURATION
			if ($duration_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'duration'))
			{
				$seconds = null;
				$minutes = null;
				$hours = null;
				if (isset($duration_parent[0]['data']))
				{
					$temp = explode(':', $this->sanitize($duration_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					if (sizeof($temp) > 0)
					{
						$seconds = (int) array_pop($temp);
					}
					if (sizeof($temp) > 0)
					{
						$minutes = (int) array_pop($temp);
						$seconds += $minutes * 60;
					}
					if (sizeof($temp) > 0)
					{
						$hours = (int) array_pop($temp);
						$seconds += $hours * 3600;
					}
					unset($temp);
					$duration_parent = $seconds;
				}
			}

			// HASHES
			if ($hashes_iterator = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'hash'))
			{
				foreach ($hashes_iterator as $hash)
				{
					$value = null;
					$algo = null;
					if (isset($hash['data']))
					{
						$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($hash['attribs']['']['algo']))
					{
						$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$algo = 'md5';
					}
					$hashes_parent[] = $algo.':'.$value;
				}
			}
			elseif ($hashes_iterator = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'hash'))
			{
				foreach ($hashes_iterator as $hash)
				{
					$value = null;
					$algo = null;
					if (isset($hash['data']))
					{
						$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($hash['attribs']['']['algo']))
					{
						$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$algo = 'md5';
					}
					$hashes_parent[] = $algo.':'.$value;
				}
			}
			if (is_array($hashes_parent))
			{
				$hashes_parent = array_values($this->registry->call('Misc', 'array_unique', array($hashes_parent)));
			}

			// KEYWORDS
			if ($keywords = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			elseif ($keywords = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			elseif ($keywords = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			elseif ($keywords = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			if (is_array($keywords_parent))
			{
				$keywords_parent = array_values($this->registry->call('Misc', 'array_unique', array($keywords_parent)));
			}

			// PLAYER
			if ($player_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'player'))
			{
				if (isset($player_parent[0]['attribs']['']['url']))
				{
					$player_parent = $this->sanitize($player_parent[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
				}
			}
			elseif ($player_parent = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'player'))
			{
				if (isset($player_parent[0]['attribs']['']['url']))
				{
					$player_parent = $this->sanitize($player_parent[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
				}
			}

			// RATINGS
			if ($ratings = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'rating'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = null;
					$rating_value = null;
					if (isset($rating['attribs']['']['scheme']))
					{
						$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$rating_scheme = 'urn:simple';
					}
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] = $this->registry->create('Rating', array($rating_scheme, $rating_value));
				}
			}
			elseif ($ratings = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'explicit'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = 'urn:itunes';
					$rating_value = null;
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] = $this->registry->create('Rating', array($rating_scheme, $rating_value));
				}
			}
			elseif ($ratings = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'rating'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = null;
					$rating_value = null;
					if (isset($rating['attribs']['']['scheme']))
					{
						$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$rating_scheme = 'urn:simple';
					}
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] = $this->registry->create('Rating', array($rating_scheme, $rating_value));
				}
			}
			elseif ($ratings = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'explicit'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = 'urn:itunes';
					$rating_value = null;
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] = $this->registry->create('Rating', array($rating_scheme, $rating_value));
				}
			}
			if (is_array($ratings_parent))
			{
				$ratings_parent = array_values($this->registry->call('Misc', 'array_unique', array($ratings_parent)));
			}

			// RESTRICTIONS
			if ($restrictions = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'restriction'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = null;
					$restriction_type = null;
					$restriction_value = null;
					if (isset($restriction['attribs']['']['relationship']))
					{
						$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['attribs']['']['type']))
					{
						$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['data']))
					{
						$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$restrictions_parent[] = $this->registry->create('Restriction', array($restriction_relationship, $restriction_type, $restriction_value));
				}
			}
			elseif ($restrictions = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'block'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = 'allow';
					$restriction_type = null;
					$restriction_value = 'itunes';
					if (isset($restriction['data']) && strtolower($restriction['data']) === 'yes')
					{
						$restriction_relationship = 'deny';
					}
					$restrictions_parent[] = $this->registry->create('Restriction', array($restriction_relationship, $restriction_type, $restriction_value));
				}
			}
			elseif ($restrictions = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'restriction'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = null;
					$restriction_type = null;
					$restriction_value = null;
					if (isset($restriction['attribs']['']['relationship']))
					{
						$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['attribs']['']['type']))
					{
						$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['data']))
					{
						$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$restrictions_parent[] = $this->registry->create('Restriction', array($restriction_relationship, $restriction_type, $restriction_value));
				}
			}
			elseif ($restrictions = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'block'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = 'allow';
					$restriction_type = null;
					$restriction_value = 'itunes';
					if (isset($restriction['data']) && strtolower($restriction['data']) === 'yes')
					{
						$restriction_relationship = 'deny';
					}
					$restrictions_parent[] = $this->registry->create('Restriction', array($restriction_relationship, $restriction_type, $restriction_value));
				}
			}
			if (is_array($restrictions_parent))
			{
				$restrictions_parent = array_values($this->registry->call('Misc', 'array_unique', array($restrictions_parent)));
			}

			// THUMBNAILS
			if ($thumbnails = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'thumbnail'))
			{
				foreach ($thumbnails as $thumbnail)
				{
					if (isset($thumbnail['attribs']['']['url']))
					{
						$thumbnails_parent[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
					}
				}
			}
			elseif ($thumbnails = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'thumbnail'))
			{
				foreach ($thumbnails as $thumbnail)
				{
					if (isset($thumbnail['attribs']['']['url']))
					{
						$thumbnails_parent[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
					}
				}
			}

			// TITLES
			if ($title_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'title'))
			{
				if (isset($title_parent[0]['data']))
				{
					$title_parent = $this->sanitize($title_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}
			elseif ($title_parent = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'title'))
			{
				if (isset($title_parent[0]['data']))
				{
					$title_parent = $this->sanitize($title_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}

			// Clear the memory
			unset($parent);

			// Attributes
			$bitrate = null;
			$channels = null;
			$duration = null;
			$expression = null;
			$framerate = null;
			$height = null;
			$javascript = null;
			$lang = null;
			$length = null;
			$medium = null;
			$samplingrate = null;
			$type = null;
			$url = null;
			$width = null;

			// Elements
			$captions = null;
			$categories = null;
			$copyrights = null;
			$credits = null;
			$description = null;
			$hashes = null;
			$keywords = null;
			$player = null;
			$ratings = null;
			$restrictions = null;
			$thumbnails = null;
			$title = null;

			// If we have media:group tags, loop through them.
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'group') as $group)
			{
				if(isset($group['child']) && isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content']))
				{
					// If we have media:content tags, loop through them.
					foreach ((array) $group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content'] as $content)
					{
						if (isset($content['attribs']['']['url']))
						{
							// Attributes
							$bitrate = null;
							$channels = null;
							$duration = null;
							$expression = null;
							$framerate = null;
							$height = null;
							$javascript = null;
							$lang = null;
							$length = null;
							$medium = null;
							$samplingrate = null;
							$type = null;
							$url = null;
							$width = null;

							// Elements
							$captions = null;
							$categories = null;
							$copyrights = null;
							$credits = null;
							$description = null;
							$hashes = null;
							$keywords = null;
							$player = null;
							$ratings = null;
							$restrictions = null;
							$thumbnails = null;
							$title = null;

							// Start checking the attributes of media:content
							if (isset($content['attribs']['']['bitrate']))
							{
								$bitrate = $this->sanitize($content['attribs']['']['bitrate'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['channels']))
							{
								$channels = $this->sanitize($content['attribs']['']['channels'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['duration']))
							{
								$duration = $this->sanitize($content['attribs']['']['duration'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							else
							{
								$duration = $duration_parent;
							}
							if (isset($content['attribs']['']['expression']))
							{
								$expression = $this->sanitize($content['attribs']['']['expression'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['framerate']))
							{
								$framerate = $this->sanitize($content['attribs']['']['framerate'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['height']))
							{
								$height = $this->sanitize($content['attribs']['']['height'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['lang']))
							{
								$lang = $this->sanitize($content['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['fileSize']))
							{
								$length = ceil($content['attribs']['']['fileSize']);
							}
							if (isset($content['attribs']['']['medium']))
							{
								$medium = $this->sanitize($content['attribs']['']['medium'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['samplingrate']))
							{
								$samplingrate = $this->sanitize($content['attribs']['']['samplingrate'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['type']))
							{
								$type = $this->sanitize($content['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['width']))
							{
								$width = $this->sanitize($content['attribs']['']['width'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							$url = $this->sanitize($content['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);

							// Checking the other optional media: elements. Priority: media:content, media:group, item, channel

							// CAPTIONS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text'] as $caption)
								{
									$caption_type = null;
									$caption_lang = null;
									$caption_startTime = null;
									$caption_endTime = null;
									$caption_text = null;
									if (isset($caption['attribs']['']['type']))
									{
										$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['lang']))
									{
										$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['start']))
									{
										$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['end']))
									{
										$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['data']))
									{
										$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$captions[] = $this->registry->create('Caption', array($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text));
								}
								if (is_array($captions))
								{
									$captions = array_values($this->registry->call('Misc', 'array_unique', array($captions)));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text'] as $caption)
								{
									$caption_type = null;
									$caption_lang = null;
									$caption_startTime = null;
									$caption_endTime = null;
									$caption_text = null;
									if (isset($caption['attribs']['']['type']))
									{
										$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['lang']))
									{
										$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['start']))
									{
										$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['end']))
									{
										$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['data']))
									{
										$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$captions[] = $this->registry->create('Caption', array($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text));
								}
								if (is_array($captions))
								{
									$captions = array_values($this->registry->call('Misc', 'array_unique', array($captions)));
								}
							}
							else
							{
								$captions = $captions_parent;
							}

							// CATEGORIES
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category']))
							{
								foreach ((array) $content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category'] as $category)
								{
									$term = null;
									$scheme = null;
									$label = null;
									if (isset($category['data']))
									{
										$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($category['attribs']['']['scheme']))
									{
										$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$scheme = 'http://search.yahoo.com/mrss/category_schema';
									}
									if (isset($category['attribs']['']['label']))
									{
										$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$categories[] = $this->registry->create('Category', array($term, $scheme, $label));
								}
							}
							if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category']))
							{
								foreach ((array) $group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category'] as $category)
								{
									$term = null;
									$scheme = null;
									$label = null;
									if (isset($category['data']))
									{
										$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($category['attribs']['']['scheme']))
									{
										$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$scheme = 'http://search.yahoo.com/mrss/category_schema';
									}
									if (isset($category['attribs']['']['label']))
									{
										$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$categories[] = $this->registry->create('Category', array($term, $scheme, $label));
								}
							}
							if (is_array($categories) && is_array($categories_parent))
							{
								$categories = array_values($this->registry->call('Misc', 'array_unique', array(array_merge($categories, $categories_parent))));
							}
							elseif (is_array($categories))
							{
								$categories = array_values($this->registry->call('Misc', 'array_unique', array($categories)));
							}
							elseif (is_array($categories_parent))
							{
								$categories = array_values($this->registry->call('Misc', 'array_unique', array($categories_parent)));
							}

							// COPYRIGHTS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright']))
							{
								$copyright_url = null;
								$copyright_label = null;
								if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url']))
								{
									$copyright_url = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data']))
								{
									$copyright_label = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$copyrights = $this->registry->create('Copyright', array($copyright_url, $copyright_label));
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright']))
							{
								$copyright_url = null;
								$copyright_label = null;
								if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url']))
								{
									$copyright_url = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data']))
								{
									$copyright_label = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$copyrights = $this->registry->create('Copyright', array($copyright_url, $copyright_label));
							}
							else
							{
								$copyrights = $copyrights_parent;
							}

							// CREDITS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit'] as $credit)
								{
									$credit_role = null;
									$credit_scheme = null;
									$credit_name = null;
									if (isset($credit['attribs']['']['role']))
									{
										$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($credit['attribs']['']['scheme']))
									{
										$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$credit_scheme = 'urn:ebu';
									}
									if (isset($credit['data']))
									{
										$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$credits[] = $this->registry->create('Credit', array($credit_role, $credit_scheme, $credit_name));
								}
								if (is_array($credits))
								{
									$credits = array_values($this->registry->call('Misc', 'array_unique', array($credits)));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit'] as $credit)
								{
									$credit_role = null;
									$credit_scheme = null;
									$credit_name = null;
									if (isset($credit['attribs']['']['role']))
									{
										$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($credit['attribs']['']['scheme']))
									{
										$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$credit_scheme = 'urn:ebu';
									}
									if (isset($credit['data']))
									{
										$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$credits[] = $this->registry->create('Credit', array($credit_role, $credit_scheme, $credit_name));
								}
								if (is_array($credits))
								{
									$credits = array_values($this->registry->call('Misc', 'array_unique', array($credits)));
								}
							}
							else
							{
								$credits = $credits_parent;
							}

							// DESCRIPTION
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description']))
							{
								$description = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description']))
							{
								$description = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							else
							{
								$description = $description_parent;
							}

							// HASHES
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash'] as $hash)
								{
									$value = null;
									$algo = null;
									if (isset($hash['data']))
									{
										$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($hash['attribs']['']['algo']))
									{
										$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$algo = 'md5';
									}
									$hashes[] = $algo.':'.$value;
								}
								if (is_array($hashes))
								{
									$hashes = array_values($this->registry->call('Misc', 'array_unique', array($hashes)));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash'] as $hash)
								{
									$value = null;
									$algo = null;
									if (isset($hash['data']))
									{
										$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($hash['attribs']['']['algo']))
									{
										$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$algo = 'md5';
									}
									$hashes[] = $algo.':'.$value;
								}
								if (is_array($hashes))
								{
									$hashes = array_values($this->registry->call('Misc', 'array_unique', array($hashes)));
								}
							}
							else
							{
								$hashes = $hashes_parent;
							}

							// KEYWORDS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords']))
							{
								if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data']))
								{
									$temp = explode(',', $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
									foreach ($temp as $word)
									{
										$keywords[] = trim($word);
									}
									unset($temp);
								}
								if (is_array($keywords))
								{
									$keywords = array_values($this->registry->call('Misc', 'array_unique', array($keywords)));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords']))
							{
								if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data']))
								{
									$temp = explode(',', $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
									foreach ($temp as $word)
									{
										$keywords[] = trim($word);
									}
									unset($temp);
								}
								if (is_array($keywords))
								{
									$keywords = array_values($this->registry->call('Misc', 'array_unique', array($keywords)));
								}
							}
							else
							{
								$keywords = $keywords_parent;
							}

							// PLAYER
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player']))
							{
								$player = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player']))
							{
								$player = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
							}
							else
							{
								$player = $player_parent;
							}

							// RATINGS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating'] as $rating)
								{
									$rating_scheme = null;
									$rating_value = null;
									if (isset($rating['attribs']['']['scheme']))
									{
										$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$rating_scheme = 'urn:simple';
									}
									if (isset($rating['data']))
									{
										$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$ratings[] = $this->registry->create('Rating', array($rating_scheme, $rating_value));
								}
								if (is_array($ratings))
								{
									$ratings = array_values($this->registry->call('Misc', 'array_unique', array($ratings)));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating'] as $rating)
								{
									$rating_scheme = null;
									$rating_value = null;
									if (isset($rating['attribs']['']['scheme']))
									{
										$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$rating_scheme = 'urn:simple';
									}
									if (isset($rating['data']))
									{
										$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$ratings[] = $this->registry->create('Rating', array($rating_scheme, $rating_value));
								}
								if (is_array($ratings))
								{
									$ratings = array_values($this->registry->call('Misc', 'array_unique', array($ratings)));
								}
							}
							else
							{
								$ratings = $ratings_parent;
							}

							// RESTRICTIONS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction'] as $restriction)
								{
									$restriction_relationship = null;
									$restriction_type = null;
									$restriction_value = null;
									if (isset($restriction['attribs']['']['relationship']))
									{
										$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['attribs']['']['type']))
									{
										$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['data']))
									{
										$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$restrictions[] = $this->registry->create('Restriction', array($restriction_relationship, $restriction_type, $restriction_value));
								}
								if (is_array($restrictions))
								{
									$restrictions = array_values($this->registry->call('Misc', 'array_unique', array($restrictions)));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction'] as $restriction)
								{
									$restriction_relationship = null;
									$restriction_type = null;
									$restriction_value = null;
									if (isset($restriction['attribs']['']['relationship']))
									{
										$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['attribs']['']['type']))
									{
										$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['data']))
									{
										$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$restrictions[] = $this->registry->create('Restriction', array($restriction_relationship, $restriction_type, $restriction_value));
								}
								if (is_array($restrictions))
								{
									$restrictions = array_values($this->registry->call('Misc', 'array_unique', array($restrictions)));
								}
							}
							else
							{
								$restrictions = $restrictions_parent;
							}

							// THUMBNAILS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail'] as $thumbnail)
								{
									$thumbnails[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
								}
								if (is_array($thumbnails))
								{
									$thumbnails = array_values($this->registry->call('Misc', 'array_unique', array($thumbnails)));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail'] as $thumbnail)
								{
									$thumbnails[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
								}
								if (is_array($thumbnails))
								{
									$thumbnails = array_values($this->registry->call('Misc', 'array_unique', array($thumbnails)));
								}
							}
							else
							{
								$thumbnails = $thumbnails_parent;
							}

							// TITLES
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title']))
							{
								$title = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title']))
							{
								$title = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							else
							{
								$title = $title_parent;
							}

							$this->data['enclosures'][] = $this->registry->create('Enclosure', array($url, $type, $length, null, $bitrate, $captions, $categories, $channels, $copyrights, $credits, $description, $duration, $expression, $framerate, $hashes, $height, $keywords, $lang, $medium, $player, $ratings, $restrictions, $samplingrate, $thumbnails, $title, $width));
						}
					}
				}
			}

			// If we have standalone media:content tags, loop through them.
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content']))
			{
				foreach ((array) $this->data['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content'] as $content)
				{
					if (isset($content['attribs']['']['url']) || isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player']))
					{
						// Attributes
						$bitrate = null;
						$channels = null;
						$duration = null;
						$expression = null;
						$framerate = null;
						$height = null;
						$javascript = null;
						$lang = null;
						$length = null;
						$medium = null;
						$samplingrate = null;
						$type = null;
						$url = null;
						$width = null;

						// Elements
						$captions = null;
						$categories = null;
						$copyrights = null;
						$credits = null;
						$description = null;
						$hashes = null;
						$keywords = null;
						$player = null;
						$ratings = null;
						$restrictions = null;
						$thumbnails = null;
						$title = null;

						// Start checking the attributes of media:content
						if (isset($content['attribs']['']['bitrate']))
						{
							$bitrate = $this->sanitize($content['attribs']['']['bitrate'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['channels']))
						{
							$channels = $this->sanitize($content['attribs']['']['channels'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['duration']))
						{
							$duration = $this->sanitize($content['attribs']['']['duration'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						else
						{
							$duration = $duration_parent;
						}
						if (isset($content['attribs']['']['expression']))
						{
							$expression = $this->sanitize($content['attribs']['']['expression'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['framerate']))
						{
							$framerate = $this->sanitize($content['attribs']['']['framerate'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['height']))
						{
							$height = $this->sanitize($content['attribs']['']['height'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['lang']))
						{
							$lang = $this->sanitize($content['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['fileSize']))
						{
							$length = ceil($content['attribs']['']['fileSize']);
						}
						if (isset($content['attribs']['']['medium']))
						{
							$medium = $this->sanitize($content['attribs']['']['medium'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['samplingrate']))
						{
							$samplingrate = $this->sanitize($content['attribs']['']['samplingrate'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['type']))
						{
							$type = $this->sanitize($content['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['width']))
						{
							$width = $this->sanitize($content['attribs']['']['width'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['url']))
						{
							$url = $this->sanitize($content['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
						}
						// Checking the other optional media: elements. Priority: media:content, media:group, item, channel

						// CAPTIONS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text'] as $caption)
							{
								$caption_type = null;
								$caption_lang = null;
								$caption_startTime = null;
								$caption_endTime = null;
								$caption_text = null;
								if (isset($caption['attribs']['']['type']))
								{
									$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['attribs']['']['lang']))
								{
									$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['attribs']['']['start']))
								{
									$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['attribs']['']['end']))
								{
									$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['data']))
								{
									$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$captions[] = $this->registry->create('Caption', array($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text));
							}
							if (is_array($captions))
							{
								$captions = array_values($this->registry->call('Misc', 'array_unique', array($captions)));
							}
						}
						else
						{
							$captions = $captions_parent;
						}

						// CATEGORIES
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category']))
						{
							foreach ((array) $content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category'] as $category)
							{
								$term = null;
								$scheme = null;
								$label = null;
								if (isset($category['data']))
								{
									$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($category['attribs']['']['scheme']))
								{
									$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								else
								{
									$scheme = 'http://search.yahoo.com/mrss/category_schema';
								}
								if (isset($category['attribs']['']['label']))
								{
									$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$categories[] = $this->registry->create('Category', array($term, $scheme, $label));
							}
						}
						if (is_array($categories) && is_array($categories_parent))
						{
							$categories = array_values($this->registry->call('Misc', 'array_unique', array(array_merge($categories, $categories_parent))));
						}
						elseif (is_array($categories))
						{
							$categories = array_values($this->registry->call('Misc', 'array_unique', array($categories)));
						}
						elseif (is_array($categories_parent))
						{
							$categories = array_values($this->registry->call('Misc', 'array_unique', array($categories_parent)));
						}
						else
						{
							$categories = null;
						}

						// COPYRIGHTS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright']))
						{
							$copyright_url = null;
							$copyright_label = null;
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url']))
							{
								$copyright_url = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data']))
							{
								$copyright_label = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							$copyrights = $this->registry->create('Copyright', array($copyright_url, $copyright_label));
						}
						else
						{
							$copyrights = $copyrights_parent;
						}

						// CREDITS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit'] as $credit)
							{
								$credit_role = null;
								$credit_scheme = null;
								$credit_name = null;
								if (isset($credit['attribs']['']['role']))
								{
									$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($credit['attribs']['']['scheme']))
								{
									$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								else
								{
									$credit_scheme = 'urn:ebu';
								}
								if (isset($credit['data']))
								{
									$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$credits[] = $this->registry->create('Credit', array($credit_role, $credit_scheme, $credit_name));
							}
							if (is_array($credits))
							{
								$credits = array_values($this->registry->call('Misc', 'array_unique', array($credits)));
							}
						}
						else
						{
							$credits = $credits_parent;
						}

						// DESCRIPTION
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description']))
						{
							$description = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						else
						{
							$description = $description_parent;
						}

						// HASHES
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash'] as $hash)
							{
								$value = null;
								$algo = null;
								if (isset($hash['data']))
								{
									$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($hash['attribs']['']['algo']))
								{
									$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								else
								{
									$algo = 'md5';
								}
								$hashes[] = $algo.':'.$value;
							}
							if (is_array($hashes))
							{
								$hashes = array_values($this->registry->call('Misc', 'array_unique', array($hashes)));
							}
						}
						else
						{
							$hashes = $hashes_parent;
						}

						// KEYWORDS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords']))
						{
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data']))
							{
								$temp = explode(',', $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
								foreach ($temp as $word)
								{
									$keywords[] = trim($word);
								}
								unset($temp);
							}
							if (is_array($keywords))
							{
								$keywords = array_values($this->registry->call('Misc', 'array_unique', array($keywords)));
							}
						}
						else
						{
							$keywords = $keywords_parent;
						}

						// PLAYER
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player']))
						{
							$player = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
						}
						else
						{
							$player = $player_parent;
						}

						// RATINGS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating'] as $rating)
							{
								$rating_scheme = null;
								$rating_value = null;
								if (isset($rating['attribs']['']['scheme']))
								{
									$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								else
								{
									$rating_scheme = 'urn:simple';
								}
								if (isset($rating['data']))
								{
									$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$ratings[] = $this->registry->create('Rating', array($rating_scheme, $rating_value));
							}
							if (is_array($ratings))
							{
								$ratings = array_values($this->registry->call('Misc', 'array_unique', array($ratings)));
							}
						}
						else
						{
							$ratings = $ratings_parent;
						}

						// RESTRICTIONS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction'] as $restriction)
							{
								$restriction_relationship = null;
								$restriction_type = null;
								$restriction_value = null;
								if (isset($restriction['attribs']['']['relationship']))
								{
									$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($restriction['attribs']['']['type']))
								{
									$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($restriction['data']))
								{
									$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$restrictions[] = $this->registry->create('Restriction', array($restriction_relationship, $restriction_type, $restriction_value));
							}
							if (is_array($restrictions))
							{
								$restrictions = array_values($this->registry->call('Misc', 'array_unique', array($restrictions)));
							}
						}
						else
						{
							$restrictions = $restrictions_parent;
						}

						// THUMBNAILS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail'] as $thumbnail)
							{
								$thumbnails[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
							}
							if (is_array($thumbnails))
							{
								$thumbnails = array_values($this->registry->call('Misc', 'array_unique', array($thumbnails)));
							}
						}
						else
						{
							$thumbnails = $thumbnails_parent;
						}

						// TITLES
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title']))
						{
							$title = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						else
						{
							$title = $title_parent;
						}

						$this->data['enclosures'][] = $this->registry->create('Enclosure', array($url, $type, $length, null, $bitrate, $captions, $categories, $channels, $copyrights, $credits, $description, $duration, $expression, $framerate, $hashes, $height, $keywords, $lang, $medium, $player, $ratings, $restrictions, $samplingrate, $thumbnails, $title, $width));
					}
				}
			}

			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link') as $link)
			{
				if (isset($link['attribs']['']['href']) && !empty($link['attribs']['']['rel']) && $link['attribs']['']['rel'] === 'enclosure')
				{
					// Attributes
					$bitrate = null;
					$channels = null;
					$duration = null;
					$expression = null;
					$framerate = null;
					$height = null;
					$javascript = null;
					$lang = null;
					$length = null;
					$medium = null;
					$samplingrate = null;
					$type = null;
					$url = null;
					$width = null;

					$url = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
					if (isset($link['attribs']['']['type']))
					{
						$type = $this->sanitize($link['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($link['attribs']['']['length']))
					{
						$length = ceil($link['attribs']['']['length']);
					}

					// Since we don't have group or content for these, we'll just pass the '*_parent' variables directly to the constructor
					$this->data['enclosures'][] = $this->registry->create('Enclosure', array($url, $type, $length, null, $bitrate, $captions_parent, $categories_parent, $channels, $copyrights_parent, $credits_parent, $description_parent, $duration_parent, $expression, $framerate, $hashes_parent, $height, $keywords_parent, $lang, $medium, $player_parent, $ratings_parent, $restrictions_parent, $samplingrate, $thumbnails_parent, $title_parent, $width));
				}
			}

			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link') as $link)
			{
				if (isset($link['attribs']['']['href']) && !empty($link['attribs']['']['rel']) && $link['attribs']['']['rel'] === 'enclosure')
				{
					// Attributes
					$bitrate = null;
					$channels = null;
					$duration = null;
					$expression = null;
					$framerate = null;
					$height = null;
					$javascript = null;
					$lang = null;
					$length = null;
					$medium = null;
					$samplingrate = null;
					$type = null;
					$url = null;
					$width = null;

					$url = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
					if (isset($link['attribs']['']['type']))
					{
						$type = $this->sanitize($link['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($link['attribs']['']['length']))
					{
						$length = ceil($link['attribs']['']['length']);
					}

					// Since we don't have group or content for these, we'll just pass the '*_parent' variables directly to the constructor
					$this->data['enclosures'][] = $this->registry->create('Enclosure', array($url, $type, $length, null, $bitrate, $captions_parent, $categories_parent, $channels, $copyrights_parent, $credits_parent, $description_parent, $duration_parent, $expression, $framerate, $hashes_parent, $height, $keywords_parent, $lang, $medium, $player_parent, $ratings_parent, $restrictions_parent, $samplingrate, $thumbnails_parent, $title_parent, $width));
				}
			}

			if ($enclosure = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'enclosure'))
			{
				if (isset($enclosure[0]['attribs']['']['url']))
				{
					// Attributes
					$bitrate = null;
					$channels = null;
					$duration = null;
					$expression = null;
					$framerate = null;
					$height = null;
					$javascript = null;
					$lang = null;
					$length = null;
					$medium = null;
					$samplingrate = null;
					$type = null;
					$url = null;
					$width = null;

					$url = $this->sanitize($enclosure[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($enclosure[0]));
					if (isset($enclosure[0]['attribs']['']['type']))
					{
						$type = $this->sanitize($enclosure[0]['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($enclosure[0]['attribs']['']['length']))
					{
						$length = ceil($enclosure[0]['attribs']['']['length']);
					}

					// Since we don't have group or content for these, we'll just pass the '*_parent' variables directly to the constructor
					$this->data['enclosures'][] = $this->registry->create('Enclosure', array($url, $type, $length, null, $bitrate, $captions_parent, $categories_parent, $channels, $copyrights_parent, $credits_parent, $description_parent, $duration_parent, $expression, $framerate, $hashes_parent, $height, $keywords_parent, $lang, $medium, $player_parent, $ratings_parent, $restrictions_parent, $samplingrate, $thumbnails_parent, $title_parent, $width));
				}
			}

			if (sizeof($this->data['enclosures']) === 0 && ($url || $type || $length || $bitrate || $captions_parent || $categories_parent || $channels || $copyrights_parent || $credits_parent || $description_parent || $duration_parent || $expression || $framerate || $hashes_parent || $height || $keywords_parent || $lang || $medium || $player_parent || $ratings_parent || $restrictions_parent || $samplingrate || $thumbnails_parent || $title_parent || $width))
			{
				// Since we don't have group or content for these, we'll just pass the '*_parent' variables directly to the constructor
				$this->data['enclosures'][] = $this->registry->create('Enclosure', array($url, $type, $length, null, $bitrate, $captions_parent, $categories_parent, $channels, $copyrights_parent, $credits_parent, $description_parent, $duration_parent, $expression, $framerate, $hashes_parent, $height, $keywords_parent, $lang, $medium, $player_parent, $ratings_parent, $restrictions_parent, $samplingrate, $thumbnails_parent, $title_parent, $width));
			}

			$this->data['enclosures'] = array_values($this->registry->call('Misc', 'array_unique', array($this->data['enclosures'])));
		}
		if (!empty($this->data['enclosures']))
		{
			return $this->data['enclosures'];
		}
		else
		{
			return null;
		}
	}

	public function get_latitude()
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lat'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[1];
		}
		else
		{
			return null;
		}
	}

	public function get_longitude()
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'long'))
		{
			return (float) $return[0]['data'];
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lon'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[2];
		}
		else
		{
			return null;
		}
	}

	public function get_source()
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'source'))
		{
			return $this->registry->create('Source', array($this, $return[0]));
		}
		else
		{
			return null;
		}
	}
}

/**
 * Decode 'gzip' encoded HTTP data
 *
 * @package SimplePie
 * @link http://www.gzip.org/format.txt
 */
class SimplePie_gzdecode
{
	/**
	 * Compressed data
	 *
	 * @access private
	 * @var string
	 * @see gzdecode::$data
	 */
	var $compressed_data;

	/**
	 * Size of compressed data
	 *
	 * @access private
	 * @var int
	 */
	var $compressed_size;

	/**
	 * Minimum size of a valid gzip string
	 *
	 * @access private
	 * @var int
	 */
	var $min_compressed_size = 18;

	/**
	 * Current position of pointer
	 *
	 * @access private
	 * @var int
	 */
	var $position = 0;

	/**
	 * Flags (FLG)
	 *
	 * @access private
	 * @var int
	 */
	var $flags;

	/**
	 * Uncompressed data
	 *
	 * @access public
	 * @see gzdecode::$compressed_data
	 * @var string
	 */
	var $data;

	/**
	 * Modified time
	 *
	 * @access public
	 * @var int
	 */
	var $MTIME;

	/**
	 * Extra Flags
	 *
	 * @access public
	 * @var int
	 */
	var $XFL;

	/**
	 * Operating System
	 *
	 * @access public
	 * @var int
	 */
	var $OS;

	/**
	 * Subfield ID 1
	 *
	 * @access public
	 * @see gzdecode::$extra_field
	 * @see gzdecode::$SI2
	 * @var string
	 */
	var $SI1;

	/**
	 * Subfield ID 2
	 *
	 * @access public
	 * @see gzdecode::$extra_field
	 * @see gzdecode::$SI1
	 * @var string
	 */
	var $SI2;

	/**
	 * Extra field content
	 *
	 * @access public
	 * @see gzdecode::$SI1
	 * @see gzdecode::$SI2
	 * @var string
	 */
	var $extra_field;

	/**
	 * Original filename
	 *
	 * @access public
	 * @var string
	 */
	var $filename;

	/**
	 * Human readable comment
	 *
	 * @access public
	 * @var string
	 */
	var $comment;

	/**
	 * Don't allow anything to be set
	 *
	 * @param string $name
	 * @param mixed $value
	 */
	public function __set($name, $value)
	{
		trigger_error("Cannot write property $name", E_USER_ERROR);
	}

	/**
	 * Set the compressed string and related properties
	 *
	 * @param string $data
	 */
	public function __construct($data)
	{
		$this->compressed_data = $data;
		$this->compressed_size = strlen($data);
	}

	/**
	 * Decode the GZIP stream
	 *
	 * @return bool Successfulness
	 */
	public function parse()
	{
		if ($this->compressed_size >= $this->min_compressed_size)
		{
			// Check ID1, ID2, and CM
			if (substr($this->compressed_data, 0, 3) !== "\x1F\x8B\x08")
			{
				return false;
			}

			// Get the FLG (FLaGs)
			$this->flags = ord($this->compressed_data[3]);

			// FLG bits above (1 << 4) are reserved
			if ($this->flags > 0x1F)
			{
				return false;
			}

			// Advance the pointer after the above
			$this->position += 4;

			// MTIME
			$mtime = substr($this->compressed_data, $this->position, 4);
			// Reverse the string if we're on a big-endian arch because l is the only signed long and is machine endianness
			if (current(unpack('S', "\x00\x01")) === 1)
			{
				$mtime = strrev($mtime);
			}
			$this->MTIME = current(unpack('l', $mtime));
			$this->position += 4;

			// Get the XFL (eXtra FLags)
			$this->XFL = ord($this->compressed_data[$this->position++]);

			// Get the OS (Operating System)
			$this->OS = ord($this->compressed_data[$this->position++]);

			// Parse the FEXTRA
			if ($this->flags & 4)
			{
				// Read subfield IDs
				$this->SI1 = $this->compressed_data[$this->position++];
				$this->SI2 = $this->compressed_data[$this->position++];

				// SI2 set to zero is reserved for future use
				if ($this->SI2 === "\x00")
				{
					return false;
				}

				// Get the length of the extra field
				$len = current(unpack('v', substr($this->compressed_data, $this->position, 2)));
				$this->position += 2;

				// Check the length of the string is still valid
				$this->min_compressed_size += $len + 4;
				if ($this->compressed_size >= $this->min_compressed_size)
				{
					// Set the extra field to the given data
					$this->extra_field = substr($this->compressed_data, $this->position, $len);
					$this->position += $len;
				}
				else
				{
					return false;
				}
			}

			// Parse the FNAME
			if ($this->flags & 8)
			{
				// Get the length of the filename
				$len = strcspn($this->compressed_data, "\x00", $this->position);

				// Check the length of the string is still valid
				$this->min_compressed_size += $len + 1;
				if ($this->compressed_size >= $this->min_compressed_size)
				{
					// Set the original filename to the given string
					$this->filename = substr($this->compressed_data, $this->position, $len);
					$this->position += $len + 1;
				}
				else
				{
					return false;
				}
			}

			// Parse the FCOMMENT
			if ($this->flags & 16)
			{
				// Get the length of the comment
				$len = strcspn($this->compressed_data, "\x00", $this->position);

				// Check the length of the string is still valid
				$this->min_compressed_size += $len + 1;
				if ($this->compressed_size >= $this->min_compressed_size)
				{
					// Set the original comment to the given string
					$this->comment = substr($this->compressed_data, $this->position, $len);
					$this->position += $len + 1;
				}
				else
				{
					return false;
				}
			}

			// Parse the FHCRC
			if ($this->flags & 2)
			{
				// Check the length of the string is still valid
				$this->min_compressed_size += $len + 2;
				if ($this->compressed_size >= $this->min_compressed_size)
				{
					// Read the CRC
					$crc = current(unpack('v', substr($this->compressed_data, $this->position, 2)));

					// Check the CRC matches
					if ((crc32(substr($this->compressed_data, 0, $this->position)) & 0xFFFF) === $crc)
					{
						$this->position += 2;
					}
					else
					{
						return false;
					}
				}
				else
				{
					return false;
				}
			}

			// Decompress the actual data
			if (($this->data = gzinflate(substr($this->compressed_data, $this->position, -8))) === false)
			{
				return false;
			}
			else
			{
				$this->position = $this->compressed_size - 8;
			}

			// Check CRC of data
			$crc = current(unpack('V', substr($this->compressed_data, $this->position, 4)));
			$this->position += 4;
			/*if (extension_loaded('hash') && sprintf('%u', current(unpack('V', hash('crc32b', $this->data)))) !== sprintf('%u', $crc))
			{
				return false;
			}*/

			// Check ISIZE of data
			$isize = current(unpack('V', substr($this->compressed_data, $this->position, 4)));
			$this->position += 4;
			if (sprintf('%u', strlen($this->data) & 0xFFFFFFFF) !== sprintf('%u', $isize))
			{
				return false;
			}

			// Wow, against all odds, we've actually got a valid gzip string
			return true;
		}
		else
		{
			return false;
		}
	}
}

/**
 * HTTP Response Parser
 *
 * @package SimplePie
 */
class SimplePie_HTTP_Parser
{
	/**
	 * HTTP Version
	 *
	 * @var float
	 */
	public $http_version = 0.0;

	/**
	 * Status code
	 *
	 * @var int
	 */
	public $status_code = 0;

	/**
	 * Reason phrase
	 *
	 * @var string
	 */
	public $reason = '';

	/**
	 * Key/value pairs of the headers
	 *
	 * @var array
	 */
	public $headers = array();

	/**
	 * Body of the response
	 *
	 * @var string
	 */
	public $body = '';

	/**
	 * Current state of the state machine
	 *
	 * @var string
	 */
	protected $state = 'http_version';

	/**
	 * Input data
	 *
	 * @var string
	 */
	protected $data = '';

	/**
	 * Input data length (to avoid calling strlen() everytime this is needed)
	 *
	 * @var int
	 */
	protected $data_length = 0;

	/**
	 * Current position of the pointer
	 *
	 * @var int
	 */
	protected $position = 0;

	/**
	 * Name of the hedaer currently being parsed
	 *
	 * @var string
	 */
	protected $name = '';

	/**
	 * Value of the hedaer currently being parsed
	 *
	 * @var string
	 */
	protected $value = '';

	/**
	 * Create an instance of the class with the input data
	 *
	 * @param string $data Input data
	 */
	public function __construct($data)
	{
		$this->data = $data;
		$this->data_length = strlen($this->data);
	}

	/**
	 * Parse the input data
	 *
	 * @return bool true on success, false on failure
	 */
	public function parse()
	{
		while ($this->state && $this->state !== 'emit' && $this->has_data())
		{
			$state = $this->state;
			$this->$state();
		}
		$this->data = '';
		if ($this->state === 'emit' || $this->state === 'body')
		{
			return true;
		}
		else
		{
			$this->http_version = '';
			$this->status_code = '';
			$this->reason = '';
			$this->headers = array();
			$this->body = '';
			return false;
		}
	}

	/**
	 * Check whether there is data beyond the pointer
	 *
	 * @return bool true if there is further data, false if not
	 */
	protected function has_data()
	{
		return (bool) ($this->position < $this->data_length);
	}

	/**
	 * See if the next character is LWS
	 *
	 * @return bool true if the next character is LWS, false if not
	 */
	protected function is_linear_whitespace()
	{
		return (bool) ($this->data[$this->position] === "\x09"
			|| $this->data[$this->position] === "\x20"
			|| ($this->data[$this->position] === "\x0A"
				&& isset($this->data[$this->position + 1])
				&& ($this->data[$this->position + 1] === "\x09" || $this->data[$this->position + 1] === "\x20")));
	}

	/**
	 * Parse the HTTP version
	 */
	protected function http_version()
	{
		if (strpos($this->data, "\x0A") !== false && strtoupper(substr($this->data, 0, 5)) === 'HTTP/')
		{
			$len = strspn($this->data, '0123456789.', 5);
			$this->http_version = substr($this->data, 5, $len);
			$this->position += 5 + $len;
			if (substr_count($this->http_version, '.') <= 1)
			{
				$this->http_version = (float) $this->http_version;
				$this->position += strspn($this->data, "\x09\x20", $this->position);
				$this->state = 'status';
			}
			else
			{
				$this->state = false;
			}
		}
		else
		{
			$this->state = false;
		}
	}

	/**
	 * Parse the status code
	 */
	protected function status()
	{
		if ($len = strspn($this->data, '0123456789', $this->position))
		{
			$this->status_code = (int) substr($this->data, $this->position, $len);
			$this->position += $len;
			$this->state = 'reason';
		}
		else
		{
			$this->state = false;
		}
	}

	/**
	 * Parse the reason phrase
	 */
	protected function reason()
	{
		$len = strcspn($this->data, "\x0A", $this->position);
		$this->reason = trim(substr($this->data, $this->position, $len), "\x09\x0D\x20");
		$this->position += $len + 1;
		$this->state = 'new_line';
	}

	/**
	 * Deal with a new line, shifting data around as needed
	 */
	protected function new_line()
	{
		$this->value = trim($this->value, "\x0D\x20");
		if ($this->name !== '' && $this->value !== '')
		{
			$this->name = strtolower($this->name);
			// We should only use the last Content-Type header. c.f. issue #1
			if (isset($this->headers[$this->name]) && $this->name !== 'content-type')
			{
				$this->headers[$this->name] .= ', ' . $this->value;
			}
			else
			{
				$this->headers[$this->name] = $this->value;
			}
		}
		$this->name = '';
		$this->value = '';
		if (substr($this->data[$this->position], 0, 2) === "\x0D\x0A")
		{
			$this->position += 2;
			$this->state = 'body';
		}
		elseif ($this->data[$this->position] === "\x0A")
		{
			$this->position++;
			$this->state = 'body';
		}
		else
		{
			$this->state = 'name';
		}
	}

	/**
	 * Parse a header name
	 */
	protected function name()
	{
		$len = strcspn($this->data, "\x0A:", $this->position);
		if (isset($this->data[$this->position + $len]))
		{
			if ($this->data[$this->position + $len] === "\x0A")
			{
				$this->position += $len;
				$this->state = 'new_line';
			}
			else
			{
				$this->name = substr($this->data, $this->position, $len);
				$this->position += $len + 1;
				$this->state = 'value';
			}
		}
		else
		{
			$this->state = false;
		}
	}

	/**
	 * Parse LWS, replacing consecutive LWS characters with a single space
	 */
	protected function linear_whitespace()
	{
		do
		{
			if (substr($this->data, $this->position, 2) === "\x0D\x0A")
			{
				$this->position += 2;
			}
			elseif ($this->data[$this->position] === "\x0A")
			{
				$this->position++;
			}
			$this->position += strspn($this->data, "\x09\x20", $this->position);
		} while ($this->has_data() && $this->is_linear_whitespace());
		$this->value .= "\x20";
	}

	/**
	 * See what state to move to while within non-quoted header values
	 */
	protected function value()
	{
		if ($this->is_linear_whitespace())
		{
			$this->linear_whitespace();
		}
		else
		{
			switch ($this->data[$this->position])
			{
				case '"':
					// Workaround for ETags: we have to include the quotes as
					// part of the tag.
					if (strtolower($this->name) === 'etag')
					{
						$this->value .= '"';
						$this->position++;
						$this->state = 'value_char';
						break;
					}
					$this->position++;
					$this->state = 'quote';
					break;

				case "\x0A":
					$this->position++;
					$this->state = 'new_line';
					break;

				default:
					$this->state = 'value_char';
					break;
			}
		}
	}

	/**
	 * Parse a header value while outside quotes
	 */
	protected function value_char()
	{
		$len = strcspn($this->data, "\x09\x20\x0A\"", $this->position);
		$this->value .= substr($this->data, $this->position, $len);
		$this->position += $len;
		$this->state = 'value';
	}

	/**
	 * See what state to move to while within quoted header values
	 */
	protected function quote()
	{
		if ($this->is_linear_whitespace())
		{
			$this->linear_whitespace();
		}
		else
		{
			switch ($this->data[$this->position])
			{
				case '"':
					$this->position++;
					$this->state = 'value';
					break;

				case "\x0A":
					$this->position++;
					$this->state = 'new_line';
					break;

				case '\\':
					$this->position++;
					$this->state = 'quote_escaped';
					break;

				default:
					$this->state = 'quote_char';
					break;
			}
		}
	}

	/**
	 * Parse a header value while within quotes
	 */
	protected function quote_char()
	{
		$len = strcspn($this->data, "\x09\x20\x0A\"\\", $this->position);
		$this->value .= substr($this->data, $this->position, $len);
		$this->position += $len;
		$this->state = 'value';
	}

	/**
	 * Parse an escaped character within quotes
	 */
	protected function quote_escaped()
	{
		$this->value .= $this->data[$this->position];
		$this->position++;
		$this->state = 'quote';
	}

	/**
	 * Parse the body
	 */
	protected function body()
	{
		$this->body = substr($this->data, $this->position);
		if (!empty($this->headers['transfer-encoding']))
		{
			unset($this->headers['transfer-encoding']);
			$this->state = 'chunked';
		}
		else
		{
			$this->state = 'emit';
		}
	}

	/**
	 * Parsed a "Transfer-Encoding: chunked" body
	 */
	protected function chunked()
	{
		if (!preg_match('/^([0-9a-f]+)[^\r\n]*\r\n/i', trim($this->body)))
		{
			$this->state = 'emit';
			return;
		}

		$decoded = '';
		$encoded = $this->body;

		while (true)
		{
			$is_chunked = (bool) preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', $encoded, $matches );
			if (!$is_chunked)
			{
				// Looks like it's not chunked after all
				$this->state = 'emit';
				return;
			}

			$length = hexdec(trim($matches[1]));
			if ($length === 0)
			{
				// Ignore trailer headers
				$this->state = 'emit';
				$this->body = $decoded;
				return;
			}

			$chunk_length = strlen($matches[0]);
			$decoded .= $part = substr($encoded, $chunk_length, $length);
			$encoded = substr($encoded, $chunk_length + $length + 2);

			if (trim($encoded) === '0' || empty($encoded))
			{
				$this->state = 'emit';
				$this->body = $decoded;
				return;
			}
		}
	}
}

/**
 * SimplePie Name
 */
define('SIMPLEPIE_NAME', 'SimplePie');

/**
 * SimplePie Version
 */
define('SIMPLEPIE_VERSION', '1.3-dev');

/**
 * SimplePie Build
 * @todo Hardcode for release (there's no need to have to call SimplePie_Misc::get_build() only every load of simplepie.inc)
 */
define('SIMPLEPIE_BUILD', '20120122013604');

/**
 * SimplePie Website URL
 */
define('SIMPLEPIE_URL', 'http://simplepie.org');

/**
 * SimplePie Useragent
 * @see SimplePie::set_useragent()
 */
define('SIMPLEPIE_USERAGENT', SIMPLEPIE_NAME . '/' . SIMPLEPIE_VERSION . ' (Feed Parser; ' . SIMPLEPIE_URL . '; Allow like Gecko) Build/' . SIMPLEPIE_BUILD);

/**
 * SimplePie Linkback
 */
define('SIMPLEPIE_LINKBACK', '<a href="' . SIMPLEPIE_URL . '" title="' . SIMPLEPIE_NAME . ' ' . SIMPLEPIE_VERSION . '">' . SIMPLEPIE_NAME . '</a>');

/**
 * No Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_NONE', 0);

/**
 * Feed Link Element Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_AUTODISCOVERY', 1);

/**
 * Local Feed Extension Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_LOCAL_EXTENSION', 2);

/**
 * Local Feed Body Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_LOCAL_BODY', 4);

/**
 * Remote Feed Extension Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_REMOTE_EXTENSION', 8);

/**
 * Remote Feed Body Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_REMOTE_BODY', 16);

/**
 * All Feed Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_ALL', 31);

/**
 * No known feed type
 */
define('SIMPLEPIE_TYPE_NONE', 0);

/**
 * RSS 0.90
 */
define('SIMPLEPIE_TYPE_RSS_090', 1);

/**
 * RSS 0.91 (Netscape)
 */
define('SIMPLEPIE_TYPE_RSS_091_NETSCAPE', 2);

/**
 * RSS 0.91 (Userland)
 */
define('SIMPLEPIE_TYPE_RSS_091_USERLAND', 4);

/**
 * RSS 0.91 (both Netscape and Userland)
 */
define('SIMPLEPIE_TYPE_RSS_091', 6);

/**
 * RSS 0.92
 */
define('SIMPLEPIE_TYPE_RSS_092', 8);

/**
 * RSS 0.93
 */
define('SIMPLEPIE_TYPE_RSS_093', 16);

/**
 * RSS 0.94
 */
define('SIMPLEPIE_TYPE_RSS_094', 32);

/**
 * RSS 1.0
 */
define('SIMPLEPIE_TYPE_RSS_10', 64);

/**
 * RSS 2.0
 */
define('SIMPLEPIE_TYPE_RSS_20', 128);

/**
 * RDF-based RSS
 */
define('SIMPLEPIE_TYPE_RSS_RDF', 65);

/**
 * Non-RDF-based RSS (truly intended as syndication format)
 */
define('SIMPLEPIE_TYPE_RSS_SYNDICATION', 190);

/**
 * All RSS
 */
define('SIMPLEPIE_TYPE_RSS_ALL', 255);

/**
 * Atom 0.3
 */
define('SIMPLEPIE_TYPE_ATOM_03', 256);

/**
 * Atom 1.0
 */
define('SIMPLEPIE_TYPE_ATOM_10', 512);

/**
 * All Atom
 */
define('SIMPLEPIE_TYPE_ATOM_ALL', 768);

/**
 * All feed types
 */
define('SIMPLEPIE_TYPE_ALL', 1023);

/**
 * No construct
 */
define('SIMPLEPIE_CONSTRUCT_NONE', 0);

/**
 * Text construct
 */
define('SIMPLEPIE_CONSTRUCT_TEXT', 1);

/**
 * HTML construct
 */
define('SIMPLEPIE_CONSTRUCT_HTML', 2);

/**
 * XHTML construct
 */
define('SIMPLEPIE_CONSTRUCT_XHTML', 4);

/**
 * base64-encoded construct
 */
define('SIMPLEPIE_CONSTRUCT_BASE64', 8);

/**
 * IRI construct
 */
define('SIMPLEPIE_CONSTRUCT_IRI', 16);

/**
 * A construct that might be HTML
 */
define('SIMPLEPIE_CONSTRUCT_MAYBE_HTML', 32);

/**
 * All constructs
 */
define('SIMPLEPIE_CONSTRUCT_ALL', 63);

/**
 * Don't change case
 */
define('SIMPLEPIE_SAME_CASE', 1);

/**
 * Change to lowercase
 */
define('SIMPLEPIE_LOWERCASE', 2);

/**
 * Change to uppercase
 */
define('SIMPLEPIE_UPPERCASE', 4);

/**
 * PCRE for HTML attributes
 */
define('SIMPLEPIE_PCRE_HTML_ATTRIBUTE', '((?:[\x09\x0A\x0B\x0C\x0D\x20]+[^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"(?:[^"]*)"|\'(?:[^\']*)\'|(?:[^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?)*)[\x09\x0A\x0B\x0C\x0D\x20]*');

/**
 * PCRE for XML attributes
 */
define('SIMPLEPIE_PCRE_XML_ATTRIBUTE', '((?:\s+(?:(?:[^\s:]+:)?[^\s:]+)\s*=\s*(?:"(?:[^"]*)"|\'(?:[^\']*)\'))*)\s*');

/**
 * XML Namespace
 */
define('SIMPLEPIE_NAMESPACE_XML', 'http://www.w3.org/XML/1998/namespace');

/**
 * Atom 1.0 Namespace
 */
define('SIMPLEPIE_NAMESPACE_ATOM_10', 'http://www.w3.org/2005/Atom');

/**
 * Atom 0.3 Namespace
 */
define('SIMPLEPIE_NAMESPACE_ATOM_03', 'http://purl.org/atom/ns#');

/**
 * RDF Namespace
 */
define('SIMPLEPIE_NAMESPACE_RDF', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');

/**
 * RSS 0.90 Namespace
 */
define('SIMPLEPIE_NAMESPACE_RSS_090', 'http://my.netscape.com/rdf/simple/0.9/');

/**
 * RSS 1.0 Namespace
 */
define('SIMPLEPIE_NAMESPACE_RSS_10', 'http://purl.org/rss/1.0/');

/**
 * RSS 1.0 Content Module Namespace
 */
define('SIMPLEPIE_NAMESPACE_RSS_10_MODULES_CONTENT', 'http://purl.org/rss/1.0/modules/content/');

/**
 * RSS 2.0 Namespace
 * (Stupid, I know, but I'm certain it will confuse people less with support.)
 */
define('SIMPLEPIE_NAMESPACE_RSS_20', '');

/**
 * DC 1.0 Namespace
 */
define('SIMPLEPIE_NAMESPACE_DC_10', 'http://purl.org/dc/elements/1.0/');

/**
 * DC 1.1 Namespace
 */
define('SIMPLEPIE_NAMESPACE_DC_11', 'http://purl.org/dc/elements/1.1/');

/**
 * W3C Basic Geo (WGS84 lat/long) Vocabulary Namespace
 */
define('SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO', 'http://www.w3.org/2003/01/geo/wgs84_pos#');

/**
 * GeoRSS Namespace
 */
define('SIMPLEPIE_NAMESPACE_GEORSS', 'http://www.georss.org/georss');

/**
 * Media RSS Namespace
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS', 'http://search.yahoo.com/mrss/');

/**
 * Wrong Media RSS Namespace. Caused by a long-standing typo in the spec.
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG', 'http://search.yahoo.com/mrss');

/**
 * Wrong Media RSS Namespace #2. New namespace introduced in Media RSS 1.5.
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG2', 'http://video.search.yahoo.com/mrss');

/**
 * Wrong Media RSS Namespace #3. A possible typo of the Media RSS 1.5 namespace.
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG3', 'http://video.search.yahoo.com/mrss/');

/**
 * Wrong Media RSS Namespace #4. New spec location after the RSS Advisory Board takes it over, but not a valid namespace.
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG4', 'http://www.rssboard.org/media-rss');

/**
 * Wrong Media RSS Namespace #5. A possible typo of the RSS Advisory Board URL.
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG5', 'http://www.rssboard.org/media-rss/');

/**
 * iTunes RSS Namespace
 */
define('SIMPLEPIE_NAMESPACE_ITUNES', 'http://www.itunes.com/dtds/podcast-1.0.dtd');

/**
 * XHTML Namespace
 */
define('SIMPLEPIE_NAMESPACE_XHTML', 'http://www.w3.org/1999/xhtml');

/**
 * IANA Link Relations Registry
 */
define('SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY', 'http://www.iana.org/assignments/relation/');

/**
 * Whether we're running on PHP5
 */
define('SIMPLEPIE_PHP5', version_compare(PHP_VERSION, '5.0.0', '>='));

/**
 * No file source
 */
define('SIMPLEPIE_FILE_SOURCE_NONE', 0);

/**
 * Remote file source
 */
define('SIMPLEPIE_FILE_SOURCE_REMOTE', 1);

/**
 * Local file source
 */
define('SIMPLEPIE_FILE_SOURCE_LOCAL', 2);

/**
 * fsockopen() file source
 */
define('SIMPLEPIE_FILE_SOURCE_FSOCKOPEN', 4);

/**
 * cURL file source
 */
define('SIMPLEPIE_FILE_SOURCE_CURL', 8);

/**
 * file_get_contents() file source
 */
define('SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS', 16);

/**
 * SimplePie
 *
 * @package SimplePie
 */
class SimplePie_Core
{
	/**
	 * @var array Raw data
	 * @access private
	 */
	public $data = array();

	/**
	 * @var mixed Error string
	 * @access private
	 */
	public $error;

	/**
	 * @var object Instance of SimplePie_Sanitize (or other class)
	 * @see SimplePie::set_sanitize_class()
	 * @access private
	 */
	public $sanitize;

	/**
	 * @var string SimplePie Useragent
	 * @see SimplePie::set_useragent()
	 * @access private
	 */
	public $useragent = SIMPLEPIE_USERAGENT;

	/**
	 * @var string Feed URL
	 * @see SimplePie::set_feed_url()
	 * @access private
	 */
	public $feed_url;

	/**
	 * @var object Instance of SimplePie_File to use as a feed
	 * @see SimplePie::set_file()
	 * @access private
	 */
	public $file;

	/**
	 * @var string Raw feed data
	 * @see SimplePie::set_raw_data()
	 * @access private
	 */
	public $raw_data;

	/**
	 * @var int Timeout for fetching remote files
	 * @see SimplePie::set_timeout()
	 * @access private
	 */
	public $timeout = 10;

	/**
	 * @var bool Forces fsockopen() to be used for remote files instead
	 * of cURL, even if a new enough version is installed
	 * @see SimplePie::force_fsockopen()
	 * @access private
	 */
	public $force_fsockopen = false;

	/**
	 * @var bool Force the given data/URL to be treated as a feed no matter what
	 * it appears like
	 * @see SimplePie::force_feed()
	 * @access private
	 */
	public $force_feed = false;

	/**
	 * @var bool Enable/Disable XML dump
	 * @see SimplePie::enable_xml_dump()
	 * @access private
	 */
	public $xml_dump = false;

	/**
	 * @var bool Enable/Disable Caching
	 * @see SimplePie::enable_cache()
	 * @access private
	 */
	public $cache = true;

	/**
	 * @var int Cache duration (in seconds)
	 * @see SimplePie::set_cache_duration()
	 * @access private
	 */
	public $cache_duration = 3600;

	/**
	 * @var int Auto-discovery cache duration (in seconds)
	 * @see SimplePie::set_autodiscovery_cache_duration()
	 * @access private
	 */
	public $autodiscovery_cache_duration = 604800; // 7 Days.

	/**
	 * @var string Cache location (relative to executing script)
	 * @see SimplePie::set_cache_location()
	 * @access private
	 */
	public $cache_location = './cache';

	/**
	 * @var string Function that creates the cache filename
	 * @see SimplePie::set_cache_name_function()
	 * @access private
	 */
	public $cache_name_function = 'md5';

	/**
	 * @var bool Reorder feed by date descending
	 * @see SimplePie::enable_order_by_date()
	 * @access private
	 */
	public $order_by_date = true;

	/**
	 * @var mixed Force input encoding to be set to the follow value
	 * (false, or anything type-cast to false, disables this feature)
	 * @see SimplePie::set_input_encoding()
	 * @access private
	 */
	public $input_encoding = false;

	/**
	 * @var int Feed Autodiscovery Level
	 * @see SimplePie::set_autodiscovery_level()
	 * @access private
	 */
	public $autodiscovery = SIMPLEPIE_LOCATOR_ALL;

	public $registry;

	/**
	 * @var int Maximum number of feeds to check with autodiscovery
	 * @see SimplePie::set_max_checked_feeds()
	 * @access private
	 */
	public $max_checked_feeds = 10;

	/**
	 * @var array All the feeds found during the autodiscovery process
	 * @see SimplePie::get_all_discovered_feeds()
	 * @access private
	 */
	public $all_discovered_feeds = array();

	/**
	 * @var string Web-accessible path to the handler_image.php file.
	 * @see SimplePie::set_image_handler()
	 * @access private
	 */
	public $image_handler = '';

	/**
	 * @var array Stores the URLs when multiple feeds are being initialized.
	 * @see SimplePie::set_feed_url()
	 * @access private
	 */
	public $multifeed_url = array();

	/**
	 * @var array Stores SimplePie objects when multiple feeds initialized.
	 * @access private
	 */
	public $multifeed_objects = array();

	/**
	 * @var array Stores the get_object_vars() array for use with multifeeds.
	 * @see SimplePie::set_feed_url()
	 * @access private
	 */
	public $config_settings = null;

	/**
	 * @var integer Stores the number of items to return per-feed with multifeeds.
	 * @see SimplePie::set_item_limit()
	 * @access private
	 */
	public $item_limit = 0;

	/**
	 * @var array Stores the default attributes to be stripped by strip_attributes().
	 * @see SimplePie::strip_attributes()
	 * @access private
	 */
	public $strip_attributes = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc');

	/**
	 * @var array Stores the default tags to be stripped by strip_htmltags().
	 * @see SimplePie::strip_htmltags()
	 * @access private
	 */
	public $strip_htmltags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style');

	/**
	 * The SimplePie class contains feed level data and options
	 *
	 * There are two ways that you can create a new SimplePie object. The first
	 * is by passing a feed URL as a parameter to the SimplePie constructor
	 * (as well as optionally setting the cache location and cache expiry). This
	 * will initialise the whole feed with all of the default settings, and you
	 * can begin accessing methods and properties immediately.
	 *
	 * The second way is to create the SimplePie object with no parameters
	 * at all. This will enable you to set configuration options. After setting
	 * them, you must initialise the feed using $feed->init(). At that point the
	 * object's methods and properties will be available to you. This format is
	 * what is used throughout this documentation.
	 *
	 * @access public
	 * @since 1.0 Preview Release
	 */
	public function __construct()
	{
		if (version_compare(PHP_VERSION, '5.0', '<'))
		{
			trigger_error('PHP 4.x is no longer supported. Please upgrade to PHP 5.2 or newer.');
			die();
		}

		// Other objects, instances created here so we can set options on them
		$this->sanitize = new SimplePie_Sanitize();
		$this->registry = new SimplePie_Registry();

		if (func_num_args() > 0)
		{
			trigger_error('Passing parameters to the constructor is no longer supported. Please use set_feed_url(), set_cache_location(), and set_cache_location() directly.');
		}
	}

	/**
	 * Used for converting object to a string
	 */
	public function __toString()
	{
		return md5(serialize($this->data));
	}

	/**
	 * Remove items that link back to this before destroying this object
	 */
	public function __destruct()
	{
		if ((version_compare(PHP_VERSION, '5.3', '<') || !gc_enabled()) && !ini_get('zend.ze1_compatibility_mode'))
		{
			if (!empty($this->data['items']))
			{
				foreach ($this->data['items'] as $item)
				{
					$item->__destruct();
				}
				unset($item, $this->data['items']);
			}
			if (!empty($this->data['ordered_items']))
			{
				foreach ($this->data['ordered_items'] as $item)
				{
					$item->__destruct();
				}
				unset($item, $this->data['ordered_items']);
			}
		}
	}

	/**
	 * Force the given data/URL to be treated as a feed no matter what it
	 * appears like
	 *
	 * @access public
	 * @since 1.1
	 * @param bool $enable Force the given data/URL to be treated as a feed
	 */
	public function force_feed($enable = false)
	{
		$this->force_feed = (bool) $enable;
	}

	/**
	 * This is the URL of the feed you want to parse.
	 *
	 * This allows you to enter the URL of the feed you want to parse, or the
	 * website you want to try to use auto-discovery on. This takes priority
	 * over any set raw data.
	 *
	 * You can set multiple feeds to mash together by passing an array instead
	 * of a string for the $url. Remember that with each additional feed comes
	 * additional processing and resources.
	 *
	 * @access public
	 * @since 1.0 Preview Release
	 * @param mixed $url This is the URL (or array of URLs) that you want to parse.
	 * @see SimplePie::set_raw_data()
	 */
	public function set_feed_url($url)
	{
		$this->multifeed_url = array();
		if (is_array($url))
		{
			foreach ($url as $value)
			{
				$this->multifeed_url[] = $this->registry->call('Misc', 'fix_protocol', array($value, 1));
			}
		}
		else
		{
			$this->feed_url = $this->registry->call('Misc', 'fix_protocol', array($url, 1));
		}
	}

	/**
	 * Provides an instance of SimplePie_File to use as a feed
	 *
	 * @access public
	 * @param object &$file Instance of SimplePie_File (or subclass)
	 * @return bool True on success, false on failure
	 */
	public function set_file(&$file)
	{
		if ($file instanceof SimplePie_File)
		{
			$this->feed_url = $file->url;
			$this->file =& $file;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to use a string of RSS/Atom data instead of a remote feed.
	 *
	 * If you have a feed available as a string in PHP, you can tell SimplePie
	 * to parse that data string instead of a remote feed. Any set feed URL
	 * takes precedence.
	 *
	 * @access public
	 * @since 1.0 Beta 3
	 * @param string $data RSS or Atom data as a string.
	 * @see SimplePie::set_feed_url()
	 */
	public function set_raw_data($data)
	{
		$this->raw_data = $data;
	}

	/**
	 * Allows you to override the default timeout for fetching remote feeds.
	 *
	 * This allows you to change the maximum time the feed's server to respond
	 * and send the feed back.
	 *
	 * @access public
	 * @since 1.0 Beta 3
	 * @param int $timeout The maximum number of seconds to spend waiting to retrieve a feed.
	 */
	public function set_timeout($timeout = 10)
	{
		$this->timeout = (int) $timeout;
	}

	/**
	 * Forces SimplePie to use fsockopen() instead of the preferred cURL
	 * functions.
	 *
	 * @access public
	 * @since 1.0 Beta 3
	 * @param bool $enable Force fsockopen() to be used
	 */
	public function force_fsockopen($enable = false)
	{
		$this->force_fsockopen = (bool) $enable;
	}

	/**
	 * Enables/disables caching in SimplePie.
	 *
	 * This option allows you to disable caching all-together in SimplePie.
	 * However, disabling the cache can lead to longer load times.
	 *
	 * @access public
	 * @since 1.0 Preview Release
	 * @param bool $enable Enable caching
	 */
	public function enable_cache($enable = true)
	{
		$this->cache = (bool) $enable;
	}

	/**
	 * Set the length of time (in seconds) that the contents of a feed
	 * will be cached.
	 *
	 * @access public
	 * @param int $seconds The feed content cache duration.
	 */
	public function set_cache_duration($seconds = 3600)
	{
		$this->cache_duration = (int) $seconds;
	}

	/**
	 * Set the length of time (in seconds) that the autodiscovered feed
	 * URL will be cached.
	 *
	 * @access public
	 * @param int $seconds The autodiscovered feed URL cache duration.
	 */
	public function set_autodiscovery_cache_duration($seconds = 604800)
	{
		$this->autodiscovery_cache_duration = (int) $seconds;
	}

	/**
	 * Set the file system location where the cached files should be stored.
	 *
	 * @access public
	 * @param string $location The file system location.
	 */
	public function set_cache_location($location = './cache')
	{
		$this->cache_location = (string) $location;
	}

	/**
	 * Determines whether feed items should be sorted into reverse chronological order.
	 *
	 * @access public
	 * @param bool $enable Sort as reverse chronological order.
	 */
	public function enable_order_by_date($enable = true)
	{
		$this->order_by_date = (bool) $enable;
	}

	/**
	 * Allows you to override the character encoding reported by the feed.
	 *
	 * @access public
	 * @param string $encoding Character encoding.
	 */
	public function set_input_encoding($encoding = false)
	{
		if ($encoding)
		{
			$this->input_encoding = (string) $encoding;
		}
		else
		{
			$this->input_encoding = false;
		}
	}

	/**
	 * Set how much feed autodiscovery to do
	 *
	 * @access public
	 * @see SIMPLEPIE_LOCATOR_NONE
	 * @see SIMPLEPIE_LOCATOR_AUTODISCOVERY
	 * @see SIMPLEPIE_LOCATOR_LOCAL_EXTENSION
	 * @see SIMPLEPIE_LOCATOR_LOCAL_BODY
	 * @see SIMPLEPIE_LOCATOR_REMOTE_EXTENSION
	 * @see SIMPLEPIE_LOCATOR_REMOTE_BODY
	 * @see SIMPLEPIE_LOCATOR_ALL
	 * @param int $level Feed Autodiscovery Level (level can be a
	 * combination of the above constants, see bitwise OR operator)
	 */
	public function set_autodiscovery_level($level = SIMPLEPIE_LOCATOR_ALL)
	{
		$this->autodiscovery = (int) $level;
	}

	/**
	 * Get the class registry
	 *
	 * Use this to override SimplePie's default classes
	 * @see SimplePie_Registry
	 * @return SimplePie_Registry
	 */
	public function &get_registry()
	{
		return $this->registry;
	}

	/**#@+
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @deprecated Use {@see get_registry()} instead
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	/**
	 * Allows you to change which class SimplePie uses for caching.
	 */
	public function set_cache_class($class = 'SimplePie_Cache')
	{
		return $this->registry->register('Cache', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for auto-discovery.
	 */
	public function set_locator_class($class = 'SimplePie_Locator')
	{
		return $this->registry->register('Locator', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for XML parsing.
	 */
	public function set_parser_class($class = 'SimplePie_Parser')
	{
		return $this->registry->register('Parser', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for remote file fetching.
	 */
	public function set_file_class($class = 'SimplePie_File')
	{
		return $this->registry->register('File', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for data sanitization.
	 */
	public function set_sanitize_class($class = 'SimplePie_Sanitize')
	{
		return $this->registry->register('Sanitize', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for handling feed items.
	 */
	public function set_item_class($class = 'SimplePie_Item')
	{
		return $this->registry->register('Item', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for handling author data.
	 */
	public function set_author_class($class = 'SimplePie_Author')
	{
		return $this->registry->register('Author', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for handling category data.
	 */
	public function set_category_class($class = 'SimplePie_Category')
	{
		return $this->registry->register('Category', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for feed enclosures.
	 */
	public function set_enclosure_class($class = 'SimplePie_Enclosure')
	{
		return $this->registry->register('Enclosure', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:text> captions
	 */
	public function set_caption_class($class = 'SimplePie_Caption')
	{
		return $this->registry->register('Caption', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:copyright>
	 */
	public function set_copyright_class($class = 'SimplePie_Copyright')
	{
		return $this->registry->register('Copyright', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:credit>
	 */
	public function set_credit_class($class = 'SimplePie_Credit')
	{
		return $this->registry->register('Credit', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:rating>
	 */
	public function set_rating_class($class = 'SimplePie_Rating')
	{
		return $this->registry->register('Rating', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:restriction>
	 */
	public function set_restriction_class($class = 'SimplePie_Restriction')
	{
		return $this->registry->register('Restriction', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses for content-type sniffing.
	 */
	public function set_content_type_sniffer_class($class = 'SimplePie_Content_Type_Sniffer')
	{
		return $this->registry->register('Content_Type_Sniffer', $class, true);
	}

	/**
	 * Allows you to change which class SimplePie uses item sources.
	 */
	public function set_source_class($class = 'SimplePie_Source')
	{
		return $this->registry->register('Source', $class, true);
	}
	/**#@-*/

	/**
	 * Allows you to override the default user agent string.
	 *
	 * @access public
	 * @param string $ua New user agent string.
	 */
	public function set_useragent($ua = SIMPLEPIE_USERAGENT)
	{
		$this->useragent = (string) $ua;
	}

	/**
	 * Set callback function to create cache filename with
	 *
	 * @access public
	 * @param mixed $function Callback function
	 */
	public function set_cache_name_function($function = 'md5')
	{
		if (is_callable($function))
		{
			$this->cache_name_function = $function;
		}
	}

	/**
	 * Set options to make SP as fast as possible.  Forgoes a
	 * substantial amount of data sanitization in favor of speed.
	 *
	 * @access public
	 * @param bool $set Whether to set them or not
	 */
	public function set_stupidly_fast($set = false)
	{
		if ($set)
		{
			$this->enable_order_by_date(false);
			$this->remove_div(false);
			$this->strip_comments(false);
			$this->strip_htmltags(false);
			$this->strip_attributes(false);
			$this->set_image_handler(false);
		}
	}

	/**
	 * Set maximum number of feeds to check with autodiscovery
	 *
	 * @access public
	 * @param int $max Maximum number of feeds to check
	 */
	public function set_max_checked_feeds($max = 10)
	{
		$this->max_checked_feeds = (int) $max;
	}

	public function remove_div($enable = true)
	{
		$this->sanitize->remove_div($enable);
	}

	public function strip_htmltags($tags = '', $encode = null)
	{
		if ($tags === '')
		{
			$tags = $this->strip_htmltags;
		}
		$this->sanitize->strip_htmltags($tags);
		if ($encode !== null)
		{
			$this->sanitize->encode_instead_of_strip($tags);
		}
	}

	public function encode_instead_of_strip($enable = true)
	{
		$this->sanitize->encode_instead_of_strip($enable);
	}

	public function strip_attributes($attribs = '')
	{
		if ($attribs === '')
		{
			$attribs = $this->strip_attributes;
		}
		$this->sanitize->strip_attributes($attribs);
	}

	public function set_output_encoding($encoding = 'UTF-8')
	{
		$this->sanitize->set_output_encoding($encoding);
	}

	public function strip_comments($strip = false)
	{
		$this->sanitize->strip_comments($strip);
	}

	/**
	 * Set element/attribute key/value pairs of HTML attributes
	 * containing URLs that need to be resolved relative to the feed
	 *
	 * @access public
	 * @since 1.0
	 * @param array $element_attribute Element/attribute key/value pairs
	 */
	public function set_url_replacements($element_attribute = array('a' => 'href', 'area' => 'href', 'blockquote' => 'cite', 'del' => 'cite', 'form' => 'action', 'img' => array('longdesc', 'src'), 'input' => 'src', 'ins' => 'cite', 'q' => 'cite'))
	{
		$this->sanitize->set_url_replacements($element_attribute);
	}

	/**
	 * Set the handler to enable the display of cached images.
	 *
	 * @access public
	 * @param str $page Web-accessible path to the handler_image.php file.
	 * @param str $qs The query string that the value should be passed to.
	 */
	public function set_image_handler($page = false, $qs = 'i')
	{
		if ($page !== false)
		{
			$this->sanitize->set_image_handler($page . '?' . $qs . '=');
		}
		else
		{
			$this->image_handler = '';
		}
	}

	/**
	 * Set the limit for items returned per-feed with multifeeds.
	 *
	 * @access public
	 * @param integer $limit The maximum number of items to return.
	 */
	public function set_item_limit($limit = 0)
	{
		$this->item_limit = (int) $limit;
	}

	public function init()
	{
		// Check absolute bare minimum requirements.
		if ((function_exists('version_compare') && version_compare(PHP_VERSION, '5.0', '<')) || !extension_loaded('xml') || !extension_loaded('pcre'))
		{
			return false;
		}
		// Then check the xml extension is sane (i.e., libxml 2.7.x issue on PHP < 5.2.9 and libxml 2.7.0 to 2.7.2 on any version) if we don't have xmlreader.
		elseif (!extension_loaded('xmlreader'))
		{
			static $xml_is_sane = null;
			if ($xml_is_sane === null)
			{
				$parser_check = xml_parser_create();
				xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
				xml_parser_free($parser_check);
				$xml_is_sane = isset($values[0]['value']);
			}
			if (!$xml_is_sane)
			{
				return false;
			}
		}

		if (method_exists($this->sanitize, 'set_registry'))
		{
			$this->sanitize->set_registry($this->registry);
		}

		// Pass whatever was set with config options over to the sanitizer.
		// Pass the classes in for legacy support; new classes should use the registry instead
		$this->sanitize->pass_cache_data($this->cache, $this->cache_location, $this->cache_name_function, $this->registry->get_class('Cache'));
		$this->sanitize->pass_file_data($this->registry->get_class('File'), $this->timeout, $this->useragent, $this->force_fsockopen);

		if (!empty($this->multifeed_url))
		{
			$i = 0;
			$success = 0;
			$this->multifeed_objects = array();
			foreach ($this->multifeed_url as $url)
			{
				$this->multifeed_objects[$i] = clone $this;
				$this->multifeed_objects[$i]->set_feed_url($url);
				$success |= $this->multifeed_objects[$i]->init();
				$i++;
			}
			return (bool) $success;
		}
		elseif ($this->feed_url === null && $this->raw_data === null)
		{
			return false;
		}

		$this->error = null;
		$this->data = array();
		$this->multifeed_objects = array();
		$cache = false;

		if ($this->feed_url !== null)
		{
			$parsed_feed_url = $this->registry->call('Misc', 'parse_url', array($this->feed_url));
			// Decide whether to enable caching
			if ($this->cache && $parsed_feed_url['scheme'] !== '')
			{
				$cache = $this->registry->call('Cache', 'create', array($this->cache_location, call_user_func($this->cache_name_function, $this->feed_url), 'spc'));
			}
			// If it's enabled and we don't want an XML dump, use the cache
			if ($cache && !$this->xml_dump)
			{
				// Load the Cache
				$this->data = $cache->load();
				if (!empty($this->data))
				{
					// If the cache is for an outdated build of SimplePie
					if (!isset($this->data['build']) || $this->data['build'] !== SIMPLEPIE_BUILD)
					{
						$cache->unlink();
						$this->data = array();
					}
					// If we've hit a collision just rerun it with caching disabled
					elseif (isset($this->data['url']) && $this->data['url'] !== $this->feed_url)
					{
						$cache = false;
						$this->data = array();
					}
					// If we've got a non feed_url stored (if the page isn't actually a feed, or is a redirect) use that URL.
					elseif (isset($this->data['feed_url']))
					{
						// If the autodiscovery cache is still valid use it.
						if ($cache->mtime() + $this->autodiscovery_cache_duration > time())
						{
							// Do not need to do feed autodiscovery yet.
							if ($this->data['feed_url'] !== $this->data['url']) {
								$this->set_feed_url($this->data['feed_url']);
								return $this->init();
							}

							$cache->unlink();
							$this->data = array();
						}
					}
					// Check if the cache has been updated
					elseif ($cache->mtime() + $this->cache_duration < time())
					{
						// If we have last-modified and/or etag set
						if (isset($this->data['headers']['last-modified']) || isset($this->data['headers']['etag']))
						{
							$headers = array(
								'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
							);
							if (isset($this->data['headers']['last-modified']))
							{
								$headers['if-modified-since'] = $this->data['headers']['last-modified'];
							}
							if (isset($this->data['headers']['etag']))
							{
								$headers['if-none-match'] = $this->data['headers']['etag'];
							}

							$file = $this->registry->create('File', array($this->feed_url, $this->timeout/10, 5, $headers, $this->useragent, $this->force_fsockopen));

							if ($file->success)
							{
								if ($file->status_code === 304)
								{
									$cache->touch();
									return true;
								}

								$headers = $file->headers;
							}
							else
							{
								unset($file);
							}
						}
					}
					// If the cache is still valid, just return true
					else
					{
						$this->raw_data = false;
						return true;
					}
				}
				// If the cache is empty, delete it
				else
				{
					$cache->unlink();
					$this->data = array();
				}
			}
			// If we don't already have the file (it'll only exist if we've opened it to check if the cache has been modified), open it.
			if (!isset($file))
			{
				if ($this->file instanceof SimplePie_File && $this->file->url === $this->feed_url)
				{
					$file =& $this->file;
				}
				else
				{
					$headers = array(
						'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
					);
					$file = $this->registry->create('File', array($this->feed_url, $this->timeout, 5, $headers, $this->useragent, $this->force_fsockopen));
				}
			}
			// If the file connection has an error, set SimplePie::error to that and quit
			if (!$file->success && !($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)))
			{
				$this->error = $file->error;
				return !empty($this->data);
			}

			if (!$this->force_feed)
			{
				// Check if the supplied URL is a feed, if it isn't, look for it.
				$locate = $this->registry->create('Locator', array(&$file, $this->timeout, $this->useragent, $this->max_checked_feeds));

				if (!$locate->is_feed($file))
				{
					// We need to unset this so that if SimplePie::set_file() has been called that object is untouched
					unset($file);
					if (!($file = $locate->find($this->autodiscovery, $this->all_discovered_feeds)))
					{
						$this->error = "A feed could not be found at $this->feed_url. A feed with an invalid mime type may fall victim to this error, or " . SIMPLEPIE_NAME . " was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.";
						$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
						return false;
					}
					if ($cache)
					{
						$this->data = array('url' => $this->feed_url, 'feed_url' => $file->url, 'build' => SIMPLEPIE_BUILD);
						if (!$cache->save($this))
						{
							trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
						}
						$cache = $this->registry->call('Cache', 'create', array($this->cache_location, call_user_func($this->cache_name_function, $file->url), 'spc'));
					}
					$this->feed_url = $file->url;
				}
				$locate = null;
			}

			$headers = $file->headers;
			$data = $file->body;
			$sniffer = $this->registry->create('Content_Type_Sniffer', array(&$file));
			$sniffed = $sniffer->get_type();
		}
		else
		{
			$data = $this->raw_data;
		}

		// This is exposed via get_raw_data()
		$this->raw_data = $data;

		// Set up array of possible encodings
		$encodings = array();

		// First check to see if input has been overridden.
		if ($this->input_encoding !== false)
		{
			$encodings[] = $this->input_encoding;
		}

		$application_types = array('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity');
		$text_types = array('text/xml', 'text/xml-external-parsed-entity');

		// RFC 3023 (only applies to sniffed content)
		if (isset($sniffed))
		{
			if (in_array($sniffed, $application_types) || substr($sniffed, 0, 12) === 'application/' && substr($sniffed, -4) === '+xml')
			{
				if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
				{
					$encodings[] = strtoupper($charset[1]);
				}
				$encodings = array_merge($encodings, $this->registry->call('Misc', 'xml_encoding', array($data, &$this->registry)));
				$encodings[] = 'UTF-8';
			}
			elseif (in_array($sniffed, $text_types) || substr($sniffed, 0, 5) === 'text/' && substr($sniffed, -4) === '+xml')
			{
				if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
				{
					$encodings[] = $charset[1];
				}
				$encodings[] = 'US-ASCII';
			}
			// Text MIME-type default
			elseif (substr($sniffed, 0, 5) === 'text/')
			{
				$encodings[] = 'US-ASCII';
			}
		}

		// Fallback to XML 1.0 Appendix F.1/UTF-8/ISO-8859-1
		$encodings = array_merge($encodings, $this->registry->call('Misc', 'xml_encoding', array($data, &$this->registry)));
		$encodings[] = 'UTF-8';
		$encodings[] = 'ISO-8859-1';

		// There's no point in trying an encoding twice
		$encodings = array_unique($encodings);

		// If we want the XML, just output that with the most likely encoding and quit
		if ($this->xml_dump)
		{
			header('Content-type: text/xml; charset=' . $encodings[0]);
			echo $data;
			exit;
		}

		// Loop through each possible encoding, till we return something, or run out of possibilities
		foreach ($encodings as $encoding)
		{
			// Change the encoding to UTF-8 (as we always use UTF-8 internally)
			if ($utf8_data = $this->registry->call('Misc', 'change_encoding', array($data, $encoding, 'UTF-8')))
			{
				// Create new parser
				$parser = $this->registry->create('Parser');

				// If it's parsed fine
				if ($parser->parse($utf8_data, 'UTF-8'))
				{
					$this->data = $parser->get_data();
					if (!($this->get_type() & ~SIMPLEPIE_TYPE_NONE))
					{
						$this->error = "A feed could not be found at $this->feed_url. This does not appear to be a valid RSS or Atom feed.";
						$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
						return false;
					}

					if (isset($headers))
					{
						$this->data['headers'] = $headers;
					}
					$this->data['build'] = SIMPLEPIE_BUILD;

					// Cache the file if caching is enabled
					if ($cache && !$cache->save($this))
					{
						trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
					}
					return true;
				}
			}
		}

		if (isset($parser))
		{
			// We have an error, just set SimplePie_Misc::error to it and quit
			$this->error = sprintf('This XML document is invalid, likely due to invalid characters. XML error: %s at line %d, column %d', $parser->get_error_string(), $parser->get_current_line(), $parser->get_current_column());
		}
		else
		{
			$this->error = 'The data could not be converted to UTF-8. You MUST have either the iconv or mbstring extension installed. Upgrading to PHP 5.x (which includes iconv) is highly recommended.';
		}

		$this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));

		return false;
	}

	/**
	 * Return the error message for the occured error
	 *
	 * @access public
	 * @return string Error message
	 */
	public function error()
	{
		return $this->error;
	}

	/**
	 * Return the raw XML
	 *
	 * This is the same as setting `$xml_dump = true;`, but returns
	 * the data instead of printing it.
	 *
	 * @return string|boolean Raw XML data, false if the cache is used
	 */
	public function get_raw_data()
	{
		return $this->raw_data;
	}

	public function get_encoding()
	{
		return $this->sanitize->output_encoding;
	}

	public function handle_content_type($mime = 'text/html')
	{
		if (!headers_sent())
		{
			$header = "Content-type: $mime;";
			if ($this->get_encoding())
			{
				$header .= ' charset=' . $this->get_encoding();
			}
			else
			{
				$header .= ' charset=UTF-8';
			}
			header($header);
		}
	}

	public function get_type()
	{
		if (!isset($this->data['type']))
		{
			$this->data['type'] = SIMPLEPIE_TYPE_ALL;
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed']))
			{
				$this->data['type'] &= SIMPLEPIE_TYPE_ATOM_10;
			}
			elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed']))
			{
				$this->data['type'] &= SIMPLEPIE_TYPE_ATOM_03;
			}
			elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF']))
			{
				if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['channel'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['image'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['textinput']))
				{
					$this->data['type'] &= SIMPLEPIE_TYPE_RSS_10;
				}
				if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['channel'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['image'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['textinput']))
				{
					$this->data['type'] &= SIMPLEPIE_TYPE_RSS_090;
				}
			}
			elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss']))
			{
				$this->data['type'] &= SIMPLEPIE_TYPE_RSS_ALL;
				if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
				{
					switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
					{
						case '0.91':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091;
							if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
							{
								switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
								{
									case '0':
										$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_NETSCAPE;
										break;

									case '24':
										$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_USERLAND;
										break;
								}
							}
							break;

						case '0.92':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_092;
							break;

						case '0.93':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_093;
							break;

						case '0.94':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_094;
							break;

						case '2.0':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_20;
							break;
					}
				}
			}
			else
			{
				$this->data['type'] = SIMPLEPIE_TYPE_NONE;
			}
		}
		return $this->data['type'];
	}

	/**
	 * @todo If we have a perm redirect we should return the new URL
	 * @todo When we make the above change, let's support <itunes:new-feed-url> as well
	 * @todo Also, |atom:link|@rel=self
	 */
	public function subscribe_url()
	{
		if ($this->feed_url !== null)
		{
			return $this->sanitize($this->feed_url, SIMPLEPIE_CONSTRUCT_IRI);
		}
		else
		{
			return null;
		}
	}

	public function get_feed_tags($namespace, $tag)
	{
		$type = $this->get_type();
		if ($type & SIMPLEPIE_TYPE_ATOM_10)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag];
			}
		}
		if ($type & SIMPLEPIE_TYPE_ATOM_03)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag];
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_RDF)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag];
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag];
			}
		}
		return null;
	}

	public function get_channel_tags($namespace, $tag)
	{
		$type = $this->get_type();
		if ($type & SIMPLEPIE_TYPE_ATOM_ALL)
		{
			if ($return = $this->get_feed_tags($namespace, $tag))
			{
				return $return;
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_10)
		{
			if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'channel'))
			{
				if (isset($channel[0]['child'][$namespace][$tag]))
				{
					return $channel[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_090)
		{
			if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'channel'))
			{
				if (isset($channel[0]['child'][$namespace][$tag]))
				{
					return $channel[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
		{
			if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'channel'))
			{
				if (isset($channel[0]['child'][$namespace][$tag]))
				{
					return $channel[0]['child'][$namespace][$tag];
				}
			}
		}
		return null;
	}

	public function get_image_tags($namespace, $tag)
	{
		$type = $this->get_type();
		if ($type & SIMPLEPIE_TYPE_RSS_10)
		{
			if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'image'))
			{
				if (isset($image[0]['child'][$namespace][$tag]))
				{
					return $image[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_090)
		{
			if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'image'))
			{
				if (isset($image[0]['child'][$namespace][$tag]))
				{
					return $image[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
		{
			if ($image = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'image'))
			{
				if (isset($image[0]['child'][$namespace][$tag]))
				{
					return $image[0]['child'][$namespace][$tag];
				}
			}
		}
		return null;
	}

	public function get_base($element = array())
	{
		if (!($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION) && !empty($element['xml_base_explicit']) && isset($element['xml_base']))
		{
			return $element['xml_base'];
		}
		elseif ($this->get_link() !== null)
		{
			return $this->get_link();
		}
		else
		{
			return $this->subscribe_url();
		}
	}

	public function sanitize($data, $type, $base = '')
	{
		return $this->sanitize->sanitize($data, $type, $base);
	}

	public function get_title()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'title'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_category($key = 0)
	{
		$categories = $this->get_categories();
		if (isset($categories[$key]))
		{
			return $categories[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_categories()
	{
		$categories = array();

		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
		{
			$term = null;
			$scheme = null;
			$label = null;
			if (isset($category['attribs']['']['term']))
			{
				$term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['scheme']))
			{
				$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['label']))
			{
				$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			$categories[] = $this->registry->create('Category', array($term, $scheme, $label));
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'category') as $category)
		{
			// This is really the label, but keep this as the term also for BC.
			// Label will also work on retrieving because that falls back to term.
			$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			if (isset($category['attribs']['']['domain']))
			{
				$scheme = $this->sanitize($category['attribs']['']['domain'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			else
			{
				$scheme = null;
			}
			$categories[] = $this->registry->create('Category', array($term, $scheme, null));
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
		{
			$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
		{
			$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}

		if (!empty($categories))
		{
			return $this->registry->call('Misc', 'array_unique', array($categories));
		}
		else
		{
			return null;
		}
	}

	public function get_author($key = 0)
	{
		$authors = $this->get_authors();
		if (isset($authors[$key]))
		{
			return $authors[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_authors()
	{
		$authors = array();
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author') as $author)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$authors[] = $this->registry->create('Author', array($name, $uri, $email));
			}
		}
		if ($author = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'author'))
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$authors[] = $this->registry->create('Author', array($name, $url, $email));
			}
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'creator') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'creator') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'author') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}

		if (!empty($authors))
		{
			return $this->registry->call('Misc', 'array_unique', array($authors));
		}
		else
		{
			return null;
		}
	}

	public function get_contributor($key = 0)
	{
		$contributors = $this->get_contributors();
		if (isset($contributors[$key]))
		{
			return $contributors[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_contributors()
	{
		$contributors = array();
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'contributor') as $contributor)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$contributors[] = $this->registry->create('Author', array($name, $uri, $email));
			}
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'contributor') as $contributor)
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$contributors[] = $this->registry->create('Author', array($name, $url, $email));
			}
		}

		if (!empty($contributors))
		{
			return $this->registry->call('Misc', 'array_unique', array($contributors));
		}
		else
		{
			return null;
		}
	}

	public function get_link($key = 0, $rel = 'alternate')
	{
		$links = $this->get_links($rel);
		if (isset($links[$key]))
		{
			return $links[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Added for parity between the parent-level and the item/entry-level.
	 */
	public function get_permalink()
	{
		return $this->get_link(0);
	}

	public function get_links($rel = 'alternate')
	{
		if (!isset($this->data['links']))
		{
			$this->data['links'] = array();
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link'))
			{
				foreach ($links as $link)
				{
					if (isset($link['attribs']['']['href']))
					{
						$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
						$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
					}
				}
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link'))
			{
				foreach ($links as $link)
				{
					if (isset($link['attribs']['']['href']))
					{
						$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
						$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));

					}
				}
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}

			$keys = array_keys($this->data['links']);
			foreach ($keys as $key)
			{
				if ($this->registry->call('Misc', 'is_isegment_nz_nc', array($key)))
				{
					if (isset($this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]))
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]);
						$this->data['links'][$key] =& $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key];
					}
					else
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] =& $this->data['links'][$key];
					}
				}
				elseif (substr($key, 0, 41) === SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY)
				{
					$this->data['links'][substr($key, 41)] =& $this->data['links'][$key];
				}
				$this->data['links'][$key] = array_unique($this->data['links'][$key]);
			}
		}

		if (isset($this->data['links'][$rel]))
		{
			return $this->data['links'][$rel];
		}
		else
		{
			return null;
		}
	}

	public function get_all_discovered_feeds()
	{
		return $this->all_discovered_feeds;
	}

	public function get_description()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'tagline'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}

	public function get_copyright()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'copyright'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'copyright'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_language()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang']))
		{
			return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang']))
		{
			return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang']))
		{
			return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['headers']['content-language']))
		{
			return $this->sanitize($this->data['headers']['content-language'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_latitude()
	{

		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lat'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[1];
		}
		else
		{
			return null;
		}
	}

	public function get_longitude()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'long'))
		{
			return (float) $return[0]['data'];
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lon'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[2];
		}
		else
		{
			return null;
		}
	}

	public function get_image_title()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_image_url()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
		{
			return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'url'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'url'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}

	public function get_image_link()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}

	public function get_image_width()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'width'))
		{
			return round($return[0]['data']);
		}
		elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
		{
			return 88.0;
		}
		else
		{
			return null;
		}
	}

	public function get_image_height()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'height'))
		{
			return round($return[0]['data']);
		}
		elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
		{
			return 31.0;
		}
		else
		{
			return null;
		}
	}

	public function get_item_quantity($max = 0)
	{
		$max = (int) $max;
		$qty = count($this->get_items());
		if ($max === 0)
		{
			return $qty;
		}
		else
		{
			return ($qty > $max) ? $max : $qty;
		}
	}

	public function get_item($key = 0)
	{
		$items = $this->get_items();
		if (isset($items[$key]))
		{
			return $items[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_items($start = 0, $end = 0)
	{
		if (!isset($this->data['items']))
		{
			if (!empty($this->multifeed_objects))
			{
				$this->data['items'] = SimplePie::merge_items($this->multifeed_objects, $start, $end, $this->item_limit);
			}
			else
			{
				$this->data['items'] = array();
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'entry'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
					}
				}
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'entry'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
					}
				}
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'item'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
					}
				}
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'item'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
					}
				}
				if ($items = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'item'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
					}
				}
			}
		}

		if (!empty($this->data['items']))
		{
			// If we want to order it by date, check if all items have a date, and then sort it
			if ($this->order_by_date && empty($this->multifeed_objects))
			{
				if (!isset($this->data['ordered_items']))
				{
					$do_sort = true;
					foreach ($this->data['items'] as $item)
					{
						if (!$item->get_date('U'))
						{
							$do_sort = false;
							break;
						}
					}
					$item = null;
					$this->data['ordered_items'] = $this->data['items'];
					if ($do_sort)
					{
						usort($this->data['ordered_items'], array(get_class($this), 'sort_items'));
					}
				}
				$items = $this->data['ordered_items'];
			}
			else
			{
				$items = $this->data['items'];
			}

			// Slice the data as desired
			if ($end === 0)
			{
				return array_slice($items, $start);
			}
			else
			{
				return array_slice($items, $start, $end);
			}
		}
		else
		{
			return array();
		}
	}

	public static function sort_items($a, $b)
	{
		return $a->get_date('U') <= $b->get_date('U');
	}

	public static function merge_items($urls, $start = 0, $end = 0, $limit = 0)
	{
		if (is_array($urls) && sizeof($urls) > 0)
		{
			$items = array();
			foreach ($urls as $arg)
			{
				if ($arg instanceof SimplePie)
				{
					$items = array_merge($items, $arg->get_items(0, $limit));
				}
				else
				{
					trigger_error('Arguments must be SimplePie objects', E_USER_WARNING);
				}
			}

			$do_sort = true;
			foreach ($items as $item)
			{
				if (!$item->get_date('U'))
				{
					$do_sort = false;
					break;
				}
			}
			$item = null;
			if ($do_sort)
			{
				usort($items, array('SimplePie', 'sort_items'));
			}

			if ($end === 0)
			{
				return array_slice($items, $start);
			}
			else
			{
				return array_slice($items, $start, $end);
			}
		}
		else
		{
			trigger_error('Cannot merge zero SimplePie objects', E_USER_WARNING);
			return array();
		}
	}
}

/**
 * Handles `<media:restriction>` as defined in Media RSS
 *
 * Used by {@see SimplePie_Enclosure::get_restriction()} and {@see SimplePie_Enclosure::get_restrictions()}
 *
 * This class can be overloaded with {@see SimplePie::set_restriction_class()}
 *
 * @package SimplePie
 */
class SimplePie_Restriction
{
	/**
	 * Relationship ('allow'/'deny')
	 *
	 * @var string
	 * @see get_relationship()
	 */
	var $relationship;

	/**
	 * Type of restriction
	 *
	 * @var string
	 * @see get_type()
	 */
	var $type;

	/**
	 * Restricted values
	 *
	 * @var string
	 * @see get_value()
	 */
	var $value;

	/**
	 * Constructor, used to input the data
	 *
	 * For documentation on all the parameters, see the corresponding
	 * properties and their accessors
	 */
	public function __construct($relationship = null, $type = null, $value = null)
	{
		$this->relationship = $relationship;
		$this->type = $type;
		$this->value = $value;
	}

	/**
	 * String-ified version
	 *
	 * @return string
	 */
	public function __toString()
	{
		// There is no $this->data here
		return md5(serialize($this));
	}

	/**
	 * Get the relationship
	 *
	 * @return string|null Either 'allow' or 'deny'
	 */
	public function get_relationship()
	{
		if ($this->relationship !== null)
		{
			return $this->relationship;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the type
	 *
	 * @return string|null
	 */
	public function get_type()
	{
		if ($this->type !== null)
		{
			return $this->type;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Get the list of restricted things
	 *
	 * @return string|null
	 */
	public function get_value()
	{
		if ($this->value !== null)
		{
			return $this->value;
		}
		else
		{
			return null;
		}
	}
}

/**
 * Handles `<atom:source>`
 *
 * Used by {@see SimplePie_Item::get_source()}
 *
 * This class can be overloaded with {@see SimplePie::set_source_class()}
 *
 * @package SimplePie
 */
class SimplePie_Source
{
	var $item;
	var $data = array();
	protected $registry;

	public function __construct($item, $data)
	{
		$this->item = $item;
		$this->data = $data;
	}

	public function set_registry(SimplePie_Registry &$registry)
	{
		$this->registry = &$registry;
	}

	public function __toString()
	{
		return md5(serialize($this->data));
	}

	public function get_source_tags($namespace, $tag)
	{
		if (isset($this->data['child'][$namespace][$tag]))
		{
			return $this->data['child'][$namespace][$tag];
		}
		else
		{
			return null;
		}
	}

	public function get_base($element = array())
	{
		return $this->item->get_base($element);
	}

	public function sanitize($data, $type, $base = '')
	{
		return $this->item->sanitize($data, $type, $base);
	}

	public function get_item()
	{
		return $this->item;
	}

	public function get_title()
	{
		if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'title'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_category($key = 0)
	{
		$categories = $this->get_categories();
		if (isset($categories[$key]))
		{
			return $categories[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_categories()
	{
		$categories = array();

		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
		{
			$term = null;
			$scheme = null;
			$label = null;
			if (isset($category['attribs']['']['term']))
			{
				$term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['scheme']))
			{
				$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['label']))
			{
				$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			$categories[] = $this->registry->create('Category', array($term, $scheme, $label));
		}
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'category') as $category)
		{
			// This is really the label, but keep this as the term also for BC.
			// Label will also work on retrieving because that falls back to term.
			$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			if (isset($category['attribs']['']['domain']))
			{
				$scheme = $this->sanitize($category['attribs']['']['domain'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			else
			{
				$scheme = null;
			}
			$categories[] = $this->registry->create('Category', array($term, $scheme, null));
		}
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
		{
			$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
		{
			$categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}

		if (!empty($categories))
		{
			return $this->registry->call('Misc', 'array_unique', array($categories));
		}
		else
		{
			return null;
		}
	}

	public function get_author($key = 0)
	{
		$authors = $this->get_authors();
		if (isset($authors[$key]))
		{
			return $authors[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_authors()
	{
		$authors = array();
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author') as $author)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$authors[] = $this->registry->create('Author', array($name, $uri, $email));
			}
		}
		if ($author = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'author'))
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$authors[] = $this->registry->create('Author', array($name, $url, $email));
			}
		}
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'creator') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'creator') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'author') as $author)
		{
			$authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
		}

		if (!empty($authors))
		{
			return $this->registry->call('Misc', 'array_unique', array($authors));
		}
		else
		{
			return null;
		}
	}

	public function get_contributor($key = 0)
	{
		$contributors = $this->get_contributors();
		if (isset($contributors[$key]))
		{
			return $contributors[$key];
		}
		else
		{
			return null;
		}
	}

	public function get_contributors()
	{
		$contributors = array();
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'contributor') as $contributor)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$contributors[] = $this->registry->create('Author', array($name, $uri, $email));
			}
		}
		foreach ((array) $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'contributor') as $contributor)
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$contributors[] = $this->registry->create('Author', array($name, $url, $email));
			}
		}

		if (!empty($contributors))
		{
			return $this->registry->call('Misc', 'array_unique', array($contributors));
		}
		else
		{
			return null;
		}
	}

	public function get_link($key = 0, $rel = 'alternate')
	{
		$links = $this->get_links($rel);
		if (isset($links[$key]))
		{
			return $links[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Added for parity between the parent-level and the item/entry-level.
	 */
	public function get_permalink()
	{
		return $this->get_link(0);
	}

	public function get_links($rel = 'alternate')
	{
		if (!isset($this->data['links']))
		{
			$this->data['links'] = array();
			if ($links = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link'))
			{
				foreach ($links as $link)
				{
					if (isset($link['attribs']['']['href']))
					{
						$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
						$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
					}
				}
			}
			if ($links = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link'))
			{
				foreach ($links as $link)
				{
					if (isset($link['attribs']['']['href']))
					{
						$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
						$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));

					}
				}
			}
			if ($links = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}

			$keys = array_keys($this->data['links']);
			foreach ($keys as $key)
			{
				if ($this->registry->call('Misc', 'is_isegment_nz_nc', array($key)))
				{
					if (isset($this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]))
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]);
						$this->data['links'][$key] =& $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key];
					}
					else
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] =& $this->data['links'][$key];
					}
				}
				elseif (substr($key, 0, 41) === SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY)
				{
					$this->data['links'][substr($key, 41)] =& $this->data['links'][$key];
				}
				$this->data['links'][$key] = array_unique($this->data['links'][$key]);
			}
		}

		if (isset($this->data['links'][$rel]))
		{
			return $this->data['links'][$rel];
		}
		else
		{
			return null;
		}
	}

	public function get_description()
	{
		if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'tagline'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}

	public function get_copyright()
	{
		if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'copyright'))
		{
			return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'copyright'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_language()
	{
		if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_11, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_DC_10, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['xml_lang']))
		{
			return $this->sanitize($this->data['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	public function get_latitude()
	{
		if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lat'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[1];
		}
		else
		{
			return null;
		}
	}

	public function get_longitude()
	{
		if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'long'))
		{
			return (float) $return[0]['data'];
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lon'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[2];
		}
		else
		{
			return null;
		}
	}

	public function get_image_url()
	{
		if ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
		{
			return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}
}

/**
 * Miscellanous utilities
 *
 * @package SimplePie
 */
class SimplePie_Misc
{
	public static function time_hms($seconds)
	{
		$time = '';

		$hours = floor($seconds / 3600);
		$remainder = $seconds % 3600;
		if ($hours > 0)
		{
			$time .= $hours.':';
		}

		$minutes = floor($remainder / 60);
		$seconds = $remainder % 60;
		if ($minutes < 10 && $hours > 0)
		{
			$minutes = '0' . $minutes;
		}
		if ($seconds < 10)
		{
			$seconds = '0' . $seconds;
		}

		$time .= $minutes.':';
		$time .= $seconds;

		return $time;
	}

	public static function absolutize_url($relative, $base)
	{
		$iri = SimplePie_IRI::absolutize(new SimplePie_IRI($base), $relative);
		return $iri->get_iri();
	}

	public static function remove_dot_segments($input)
	{
		$output = '';
		while (strpos($input, './') !== false || strpos($input, '/.') !== false || $input === '.' || $input === '..')
		{
			// A: If the input buffer begins with a prefix of "../" or "./", then remove that prefix from the input buffer; otherwise,
			if (strpos($input, '../') === 0)
			{
				$input = substr($input, 3);
			}
			elseif (strpos($input, './') === 0)
			{
				$input = substr($input, 2);
			}
			// B: if the input buffer begins with a prefix of "/./" or "/.", where "." is a complete path segment, then replace that prefix with "/" in the input buffer; otherwise,
			elseif (strpos($input, '/./') === 0)
			{
				$input = substr_replace($input, '/', 0, 3);
			}
			elseif ($input === '/.')
			{
				$input = '/';
			}
			// C: if the input buffer begins with a prefix of "/../" or "/..", where ".." is a complete path segment, then replace that prefix with "/" in the input buffer and remove the last segment and its preceding "/" (if any) from the output buffer; otherwise,
			elseif (strpos($input, '/../') === 0)
			{
				$input = substr_replace($input, '/', 0, 4);
				$output = substr_replace($output, '', strrpos($output, '/'));
			}
			elseif ($input === '/..')
			{
				$input = '/';
				$output = substr_replace($output, '', strrpos($output, '/'));
			}
			// D: if the input buffer consists only of "." or "..", then remove that from the input buffer; otherwise,
			elseif ($input === '.' || $input === '..')
			{
				$input = '';
			}
			// E: move the first path segment in the input buffer to the end of the output buffer, including the initial "/" character (if any) and any subsequent characters up to, but not including, the next "/" character or the end of the input buffer
			elseif (($pos = strpos($input, '/', 1)) !== false)
			{
				$output .= substr($input, 0, $pos);
				$input = substr_replace($input, '', 0, $pos);
			}
			else
			{
				$output .= $input;
				$input = '';
			}
		}
		return $output . $input;
	}

	/**
	 * Get a HTML/XML element from a HTML string
	 *
	 * @deprecated Use DOMDocument instead (parsing HTML with regex is bad!)
	 * @param string $realname Element name (including namespace prefix if applicable)
	 * @param string $string HTML document
	 * @return array
	 */
	public static function get_element($realname, $string)
	{
		$return = array();
		$name = preg_quote($realname, '/');
		if (preg_match_all("/<($name)" . SIMPLEPIE_PCRE_HTML_ATTRIBUTE . "(>(.*)<\/$name>|(\/)?>)/siU", $string, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE))
		{
			for ($i = 0, $total_matches = count($matches); $i < $total_matches; $i++)
			{
				$return[$i]['tag'] = $realname;
				$return[$i]['full'] = $matches[$i][0][0];
				$return[$i]['offset'] = $matches[$i][0][1];
				if (strlen($matches[$i][3][0]) <= 2)
				{
					$return[$i]['self_closing'] = true;
				}
				else
				{
					$return[$i]['self_closing'] = false;
					$return[$i]['content'] = $matches[$i][4][0];
				}
				$return[$i]['attribs'] = array();
				if (isset($matches[$i][2][0]) && preg_match_all('/[\x09\x0A\x0B\x0C\x0D\x20]+([^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*)(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"([^"]*)"|\'([^\']*)\'|([^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?/', ' ' . $matches[$i][2][0] . ' ', $attribs, PREG_SET_ORDER))
				{
					for ($j = 0, $total_attribs = count($attribs); $j < $total_attribs; $j++)
					{
						if (count($attribs[$j]) === 2)
						{
							$attribs[$j][2] = $attribs[$j][1];
						}
						$return[$i]['attribs'][strtolower($attribs[$j][1])]['data'] = SimplePie_Misc::entities_decode(end($attribs[$j]), 'UTF-8');
					}
				}
			}
		}
		return $return;
	}

	public static function element_implode($element)
	{
		$full = "<$element[tag]";
		foreach ($element['attribs'] as $key => $value)
		{
			$key = strtolower($key);
			$full .= " $key=\"" . htmlspecialchars($value['data']) . '"';
		}
		if ($element['self_closing'])
		{
			$full .= ' />';
		}
		else
		{
			$full .= ">$element[content]</$element[tag]>";
		}
		return $full;
	}

	public static function error($message, $level, $file, $line)
	{
		if ((ini_get('error_reporting') & $level) > 0)
		{
			switch ($level)
			{
				case E_USER_ERROR:
					$note = 'PHP Error';
					break;
				case E_USER_WARNING:
					$note = 'PHP Warning';
					break;
				case E_USER_NOTICE:
					$note = 'PHP Notice';
					break;
				default:
					$note = 'Unknown Error';
					break;
			}

			$log_error = true;
			if (!function_exists('error_log'))
			{
				$log_error = false;
			}

			$log_file = @ini_get('error_log');
			if (!empty($log_file) && ('syslog' !== $log_file) && !@is_writable($log_file))
			{
				$log_error = false;
			}

			if ($log_error)
			{
				@error_log("$note: $message in $file on line $line", 0);
			}
		}

		return $message;
	}

	public static function fix_protocol($url, $http = 1)
	{
		$url = SimplePie_Misc::normalize_url($url);
		$parsed = SimplePie_Misc::parse_url($url);
		if ($parsed['scheme'] !== '' && $parsed['scheme'] !== 'http' && $parsed['scheme'] !== 'https')
		{
			return SimplePie_Misc::fix_protocol(SimplePie_Misc::compress_parse_url('http', $parsed['authority'], $parsed['path'], $parsed['query'], $parsed['fragment']), $http);
		}

		if ($parsed['scheme'] === '' && $parsed['authority'] === '' && !file_exists($url))
		{
			return SimplePie_Misc::fix_protocol(SimplePie_Misc::compress_parse_url('http', $parsed['path'], '', $parsed['query'], $parsed['fragment']), $http);
		}

		if ($http === 2 && $parsed['scheme'] !== '')
		{
			return "feed:$url";
		}
		elseif ($http === 3 && strtolower($parsed['scheme']) === 'http')
		{
			return substr_replace($url, 'podcast', 0, 4);
		}
		elseif ($http === 4 && strtolower($parsed['scheme']) === 'http')
		{
			return substr_replace($url, 'itpc', 0, 4);
		}
		else
		{
			return $url;
		}
	}

	public static function parse_url($url)
	{
		$iri = new SimplePie_IRI($url);
		return array(
			'scheme' => (string) $iri->get_scheme(),
			'authority' => (string) $iri->get_authority(),
			'path' => (string) $iri->get_path(),
			'query' => (string) $iri->get_query(),
			'fragment' => (string) $iri->get_fragment()
		);
	}

	public static function compress_parse_url($scheme = '', $authority = '', $path = '', $query = '', $fragment = '')
	{
		$iri = new SimplePie_IRI('');
		$iri->set_scheme($scheme);
		$iri->set_authority($authority);
		$iri->set_path($path);
		$iri->set_query($query);
		$iri->set_fragment($fragment);
		return $iri->get_iri();
	}

	public static function normalize_url($url)
	{
		$iri = new SimplePie_IRI($url);
		return $iri->get_iri();
	}

	public static function percent_encoding_normalization($match)
	{
		$integer = hexdec($match[1]);
		if ($integer >= 0x41 && $integer <= 0x5A || $integer >= 0x61 && $integer <= 0x7A || $integer >= 0x30 && $integer <= 0x39 || $integer === 0x2D || $integer === 0x2E || $integer === 0x5F || $integer === 0x7E)
		{
			return chr($integer);
		}
		else
		{
			return strtoupper($match[0]);
		}
	}

	/**
	 * Converts a Windows-1252 encoded string to a UTF-8 encoded string
	 *
	 * @static
	 * @param string $string Windows-1252 encoded string
	 * @return string UTF-8 encoded string
	 */
	public static function windows_1252_to_utf8($string)
	{
		static $convert_table = array("\x80" => "\xE2\x82\xAC", "\x81" => "\xEF\xBF\xBD", "\x82" => "\xE2\x80\x9A", "\x83" => "\xC6\x92", "\x84" => "\xE2\x80\x9E", "\x85" => "\xE2\x80\xA6", "\x86" => "\xE2\x80\xA0", "\x87" => "\xE2\x80\xA1", "\x88" => "\xCB\x86", "\x89" => "\xE2\x80\xB0", "\x8A" => "\xC5\xA0", "\x8B" => "\xE2\x80\xB9", "\x8C" => "\xC5\x92", "\x8D" => "\xEF\xBF\xBD", "\x8E" => "\xC5\xBD", "\x8F" => "\xEF\xBF\xBD", "\x90" => "\xEF\xBF\xBD", "\x91" => "\xE2\x80\x98", "\x92" => "\xE2\x80\x99", "\x93" => "\xE2\x80\x9C", "\x94" => "\xE2\x80\x9D", "\x95" => "\xE2\x80\xA2", "\x96" => "\xE2\x80\x93", "\x97" => "\xE2\x80\x94", "\x98" => "\xCB\x9C", "\x99" => "\xE2\x84\xA2", "\x9A" => "\xC5\xA1", "\x9B" => "\xE2\x80\xBA", "\x9C" => "\xC5\x93", "\x9D" => "\xEF\xBF\xBD", "\x9E" => "\xC5\xBE", "\x9F" => "\xC5\xB8", "\xA0" => "\xC2\xA0", "\xA1" => "\xC2\xA1", "\xA2" => "\xC2\xA2", "\xA3" => "\xC2\xA3", "\xA4" => "\xC2\xA4", "\xA5" => "\xC2\xA5", "\xA6" => "\xC2\xA6", "\xA7" => "\xC2\xA7", "\xA8" => "\xC2\xA8", "\xA9" => "\xC2\xA9", "\xAA" => "\xC2\xAA", "\xAB" => "\xC2\xAB", "\xAC" => "\xC2\xAC", "\xAD" => "\xC2\xAD", "\xAE" => "\xC2\xAE", "\xAF" => "\xC2\xAF", "\xB0" => "\xC2\xB0", "\xB1" => "\xC2\xB1", "\xB2" => "\xC2\xB2", "\xB3" => "\xC2\xB3", "\xB4" => "\xC2\xB4", "\xB5" => "\xC2\xB5", "\xB6" => "\xC2\xB6", "\xB7" => "\xC2\xB7", "\xB8" => "\xC2\xB8", "\xB9" => "\xC2\xB9", "\xBA" => "\xC2\xBA", "\xBB" => "\xC2\xBB", "\xBC" => "\xC2\xBC", "\xBD" => "\xC2\xBD", "\xBE" => "\xC2\xBE", "\xBF" => "\xC2\xBF", "\xC0" => "\xC3\x80", "\xC1" => "\xC3\x81", "\xC2" => "\xC3\x82", "\xC3" => "\xC3\x83", "\xC4" => "\xC3\x84", "\xC5" => "\xC3\x85", "\xC6" => "\xC3\x86", "\xC7" => "\xC3\x87", "\xC8" => "\xC3\x88", "\xC9" => "\xC3\x89", "\xCA" => "\xC3\x8A", "\xCB" => "\xC3\x8B", "\xCC" => "\xC3\x8C", "\xCD" => "\xC3\x8D", "\xCE" => "\xC3\x8E", "\xCF" => "\xC3\x8F", "\xD0" => "\xC3\x90", "\xD1" => "\xC3\x91", "\xD2" => "\xC3\x92", "\xD3" => "\xC3\x93", "\xD4" => "\xC3\x94", "\xD5" => "\xC3\x95", "\xD6" => "\xC3\x96", "\xD7" => "\xC3\x97", "\xD8" => "\xC3\x98", "\xD9" => "\xC3\x99", "\xDA" => "\xC3\x9A", "\xDB" => "\xC3\x9B", "\xDC" => "\xC3\x9C", "\xDD" => "\xC3\x9D", "\xDE" => "\xC3\x9E", "\xDF" => "\xC3\x9F", "\xE0" => "\xC3\xA0", "\xE1" => "\xC3\xA1", "\xE2" => "\xC3\xA2", "\xE3" => "\xC3\xA3", "\xE4" => "\xC3\xA4", "\xE5" => "\xC3\xA5", "\xE6" => "\xC3\xA6", "\xE7" => "\xC3\xA7", "\xE8" => "\xC3\xA8", "\xE9" => "\xC3\xA9", "\xEA" => "\xC3\xAA", "\xEB" => "\xC3\xAB", "\xEC" => "\xC3\xAC", "\xED" => "\xC3\xAD", "\xEE" => "\xC3\xAE", "\xEF" => "\xC3\xAF", "\xF0" => "\xC3\xB0", "\xF1" => "\xC3\xB1", "\xF2" => "\xC3\xB2", "\xF3" => "\xC3\xB3", "\xF4" => "\xC3\xB4", "\xF5" => "\xC3\xB5", "\xF6" => "\xC3\xB6", "\xF7" => "\xC3\xB7", "\xF8" => "\xC3\xB8", "\xF9" => "\xC3\xB9", "\xFA" => "\xC3\xBA", "\xFB" => "\xC3\xBB", "\xFC" => "\xC3\xBC", "\xFD" => "\xC3\xBD", "\xFE" => "\xC3\xBE", "\xFF" => "\xC3\xBF");

		return strtr($string, $convert_table);
	}

	/**
	 * Change a string from one encoding to another
	 *
	 * @param string $data Raw data in $input encoding
	 * @param string $input Encoding of $data
	 * @param string $output Encoding you want
	 * @return string|boolean False if we can't convert it
	 */
	public static function change_encoding($data, $input, $output)
	{
		$input = SimplePie_Misc::encoding($input);
		$output = SimplePie_Misc::encoding($output);

		// We fail to fail on non US-ASCII bytes
		if ($input === 'US-ASCII')
		{
			static $non_ascii_octects = '';
			if (!$non_ascii_octects)
			{
				for ($i = 0x80; $i <= 0xFF; $i++)
				{
					$non_ascii_octects .= chr($i);
				}
			}
			$data = substr($data, 0, strcspn($data, $non_ascii_octects));
		}

		// This is first, as behaviour of this is completely predictable
		if ($input === 'windows-1252' && $output === 'UTF-8')
		{
			return SimplePie_Misc::windows_1252_to_utf8($data);
		}
		// This is second, as behaviour of this varies only with PHP version (the middle part of this expression checks the encoding is supported).
		elseif (function_exists('mb_convert_encoding') && ($return = SimplePie_Misc::change_encoding_mbstring($data, $input, $output)))
		{
			return $return;
 		}
		// This is last, as behaviour of this varies with OS userland and PHP version
		elseif (function_exists('iconv') && ($return = SimplePie_Misc::change_encoding_iconv($data, $input, $output)))
		{
			return $return;
		}
		// If we can't do anything, just fail
		else
		{
			return false;
		}
	}

	protected static function change_encoding_mbstring($data, $input, $output)
	{
		if ($input === 'windows-949')
		{
			$input = 'EUC-KR';
		}
		if ($output === 'windows-949')
		{
			$output = 'EUC-KR';
		}

		// Check that the encoding is supported
		if (@mb_convert_encoding("\x80", 'UTF-16BE', $input) === "\x00\x80")
		{
			return false;
		}
		if (!in_array($input, mb_list_encodings()))
		{
			return false;
		}

		// Let's do some conversion
		if ($return = @mb_convert_encoding($data, $output, $input))
		{
			return $return;
		}

		return false;
	}

	protected static function change_encoding_iconv($data, $input, $output)
	{
		return @iconv($input, $output, $data);
	}

	/**
	 * Normalize an encoding name
	 *
	 * This is automatically generated by create.php
	 *
	 * To generate it, run `php create.php` on the command line, and copy the
	 * output to replace this function.
	 *
	 * @param string $charset Character set to standardise
	 * @return string Standardised name
	 */
	public static function encoding($charset)
	{
		// Normalization from UTS #22
		switch (strtolower(preg_replace('/(?:[^a-zA-Z0-9]+|([^0-9])0+)/', '\1', $charset)))
		{
			case 'adobestandardencoding':
			case 'csadobestandardencoding':
				return 'Adobe-Standard-Encoding';

			case 'adobesymbolencoding':
			case 'cshppsmath':
				return 'Adobe-Symbol-Encoding';

			case 'ami1251':
			case 'amiga1251':
				return 'Amiga-1251';

			case 'ansix31101983':
			case 'csat5001983':
			case 'csiso99naplps':
			case 'isoir99':
			case 'naplps':
				return 'ANSI_X3.110-1983';

			case 'arabic7':
			case 'asmo449':
			case 'csiso89asmo449':
			case 'iso9036':
			case 'isoir89':
				return 'ASMO_449';

			case 'big5':
			case 'csbig5':
				return 'Big5';

			case 'big5hkscs':
				return 'Big5-HKSCS';

			case 'bocu1':
			case 'csbocu1':
				return 'BOCU-1';

			case 'brf':
			case 'csbrf':
				return 'BRF';

			case 'bs4730':
			case 'csiso4unitedkingdom':
			case 'gb':
			case 'iso646gb':
			case 'isoir4':
			case 'uk':
				return 'BS_4730';

			case 'bsviewdata':
			case 'csiso47bsviewdata':
			case 'isoir47':
				return 'BS_viewdata';

			case 'cesu8':
			case 'cscesu8':
				return 'CESU-8';

			case 'ca':
			case 'csa71':
			case 'csaz243419851':
			case 'csiso121canadian1':
			case 'iso646ca':
			case 'isoir121':
				return 'CSA_Z243.4-1985-1';

			case 'csa72':
			case 'csaz243419852':
			case 'csiso122canadian2':
			case 'iso646ca2':
			case 'isoir122':
				return 'CSA_Z243.4-1985-2';

			case 'csaz24341985gr':
			case 'csiso123csaz24341985gr':
			case 'isoir123':
				return 'CSA_Z243.4-1985-gr';

			case 'csiso139csn369103':
			case 'csn369103':
			case 'isoir139':
				return 'CSN_369103';

			case 'csdecmcs':
			case 'dec':
			case 'decmcs':
				return 'DEC-MCS';

			case 'csiso21german':
			case 'de':
			case 'din66003':
			case 'iso646de':
			case 'isoir21':
				return 'DIN_66003';

			case 'csdkus':
			case 'dkus':
				return 'dk-us';

			case 'csiso646danish':
			case 'dk':
			case 'ds2089':
			case 'iso646dk':
				return 'DS_2089';

			case 'csibmebcdicatde':
			case 'ebcdicatde':
				return 'EBCDIC-AT-DE';

			case 'csebcdicatdea':
			case 'ebcdicatdea':
				return 'EBCDIC-AT-DE-A';

			case 'csebcdiccafr':
			case 'ebcdiccafr':
				return 'EBCDIC-CA-FR';

			case 'csebcdicdkno':
			case 'ebcdicdkno':
				return 'EBCDIC-DK-NO';

			case 'csebcdicdknoa':
			case 'ebcdicdknoa':
				return 'EBCDIC-DK-NO-A';

			case 'csebcdices':
			case 'ebcdices':
				return 'EBCDIC-ES';

			case 'csebcdicesa':
			case 'ebcdicesa':
				return 'EBCDIC-ES-A';

			case 'csebcdicess':
			case 'ebcdicess':
				return 'EBCDIC-ES-S';

			case 'csebcdicfise':
			case 'ebcdicfise':
				return 'EBCDIC-FI-SE';

			case 'csebcdicfisea':
			case 'ebcdicfisea':
				return 'EBCDIC-FI-SE-A';

			case 'csebcdicfr':
			case 'ebcdicfr':
				return 'EBCDIC-FR';

			case 'csebcdicit':
			case 'ebcdicit':
				return 'EBCDIC-IT';

			case 'csebcdicpt':
			case 'ebcdicpt':
				return 'EBCDIC-PT';

			case 'csebcdicuk':
			case 'ebcdicuk':
				return 'EBCDIC-UK';

			case 'csebcdicus':
			case 'ebcdicus':
				return 'EBCDIC-US';

			case 'csiso111ecmacyrillic':
			case 'ecmacyrillic':
			case 'isoir111':
			case 'koi8e':
				return 'ECMA-cyrillic';

			case 'csiso17spanish':
			case 'es':
			case 'iso646es':
			case 'isoir17':
				return 'ES';

			case 'csiso85spanish2':
			case 'es2':
			case 'iso646es2':
			case 'isoir85':
				return 'ES2';

			case 'cseucpkdfmtjapanese':
			case 'eucjp':
			case 'extendedunixcodepackedformatforjapanese':
				return 'EUC-JP';

			case 'cseucfixwidjapanese':
			case 'extendedunixcodefixedwidthforjapanese':
				return 'Extended_UNIX_Code_Fixed_Width_for_Japanese';

			case 'gb18030':
				return 'GB18030';

			case 'chinese':
			case 'cp936':
			case 'csgb2312':
			case 'csiso58gb231280':
			case 'gb2312':
			case 'gb231280':
			case 'gbk':
			case 'isoir58':
			case 'ms936':
			case 'windows936':
				return 'GBK';

			case 'cn':
			case 'csiso57gb1988':
			case 'gb198880':
			case 'iso646cn':
			case 'isoir57':
				return 'GB_1988-80';

			case 'csiso153gost1976874':
			case 'gost1976874':
			case 'isoir153':
			case 'stsev35888':
				return 'GOST_19768-74';

			case 'csiso150':
			case 'csiso150greekccitt':
			case 'greekccitt':
			case 'isoir150':
				return 'greek-ccitt';

			case 'csiso88greek7':
			case 'greek7':
			case 'isoir88':
				return 'greek7';

			case 'csiso18greek7old':
			case 'greek7old':
			case 'isoir18':
				return 'greek7-old';

			case 'cshpdesktop':
			case 'hpdesktop':
				return 'HP-DeskTop';

			case 'cshplegal':
			case 'hplegal':
				return 'HP-Legal';

			case 'cshpmath8':
			case 'hpmath8':
				return 'HP-Math8';

			case 'cshppifont':
			case 'hppifont':
				return 'HP-Pi-font';

			case 'cshproman8':
			case 'hproman8':
			case 'r8':
			case 'roman8':
				return 'hp-roman8';

			case 'hzgb2312':
				return 'HZ-GB-2312';

			case 'csibmsymbols':
			case 'ibmsymbols':
				return 'IBM-Symbols';

			case 'csibmthai':
			case 'ibmthai':
				return 'IBM-Thai';

			case 'cp37':
			case 'csibm37':
			case 'ebcdiccpca':
			case 'ebcdiccpnl':
			case 'ebcdiccpus':
			case 'ebcdiccpwt':
			case 'ibm37':
				return 'IBM037';

			case 'cp38':
			case 'csibm38':
			case 'ebcdicint':
			case 'ibm38':
				return 'IBM038';

			case 'cp273':
			case 'csibm273':
			case 'ibm273':
				return 'IBM273';

			case 'cp274':
			case 'csibm274':
			case 'ebcdicbe':
			case 'ibm274':
				return 'IBM274';

			case 'cp275':
			case 'csibm275':
			case 'ebcdicbr':
			case 'ibm275':
				return 'IBM275';

			case 'csibm277':
			case 'ebcdiccpdk':
			case 'ebcdiccpno':
			case 'ibm277':
				return 'IBM277';

			case 'cp278':
			case 'csibm278':
			case 'ebcdiccpfi':
			case 'ebcdiccpse':
			case 'ibm278':
				return 'IBM278';

			case 'cp280':
			case 'csibm280':
			case 'ebcdiccpit':
			case 'ibm280':
				return 'IBM280';

			case 'cp281':
			case 'csibm281':
			case 'ebcdicjpe':
			case 'ibm281':
				return 'IBM281';

			case 'cp284':
			case 'csibm284':
			case 'ebcdiccpes':
			case 'ibm284':
				return 'IBM284';

			case 'cp285':
			case 'csibm285':
			case 'ebcdiccpgb':
			case 'ibm285':
				return 'IBM285';

			case 'cp290':
			case 'csibm290':
			case 'ebcdicjpkana':
			case 'ibm290':
				return 'IBM290';

			case 'cp297':
			case 'csibm297':
			case 'ebcdiccpfr':
			case 'ibm297':
				return 'IBM297';

			case 'cp420':
			case 'csibm420':
			case 'ebcdiccpar1':
			case 'ibm420':
				return 'IBM420';

			case 'cp423':
			case 'csibm423':
			case 'ebcdiccpgr':
			case 'ibm423':
				return 'IBM423';

			case 'cp424':
			case 'csibm424':
			case 'ebcdiccphe':
			case 'ibm424':
				return 'IBM424';

			case '437':
			case 'cp437':
			case 'cspc8codepage437':
			case 'ibm437':
				return 'IBM437';

			case 'cp500':
			case 'csibm500':
			case 'ebcdiccpbe':
			case 'ebcdiccpch':
			case 'ibm500':
				return 'IBM500';

			case 'cp775':
			case 'cspc775baltic':
			case 'ibm775':
				return 'IBM775';

			case '850':
			case 'cp850':
			case 'cspc850multilingual':
			case 'ibm850':
				return 'IBM850';

			case '851':
			case 'cp851':
			case 'csibm851':
			case 'ibm851':
				return 'IBM851';

			case '852':
			case 'cp852':
			case 'cspcp852':
			case 'ibm852':
				return 'IBM852';

			case '855':
			case 'cp855':
			case 'csibm855':
			case 'ibm855':
				return 'IBM855';

			case '857':
			case 'cp857':
			case 'csibm857':
			case 'ibm857':
				return 'IBM857';

			case 'ccsid858':
			case 'cp858':
			case 'ibm858':
			case 'pcmultilingual850euro':
				return 'IBM00858';

			case '860':
			case 'cp860':
			case 'csibm860':
			case 'ibm860':
				return 'IBM860';

			case '861':
			case 'cp861':
			case 'cpis':
			case 'csibm861':
			case 'ibm861':
				return 'IBM861';

			case '862':
			case 'cp862':
			case 'cspc862latinhebrew':
			case 'ibm862':
				return 'IBM862';

			case '863':
			case 'cp863':
			case 'csibm863':
			case 'ibm863':
				return 'IBM863';

			case 'cp864':
			case 'csibm864':
			case 'ibm864':
				return 'IBM864';

			case '865':
			case 'cp865':
			case 'csibm865':
			case 'ibm865':
				return 'IBM865';

			case '866':
			case 'cp866':
			case 'csibm866':
			case 'ibm866':
				return 'IBM866';

			case 'cp868':
			case 'cpar':
			case 'csibm868':
			case 'ibm868':
				return 'IBM868';

			case '869':
			case 'cp869':
			case 'cpgr':
			case 'csibm869':
			case 'ibm869':
				return 'IBM869';

			case 'cp870':
			case 'csibm870':
			case 'ebcdiccproece':
			case 'ebcdiccpyu':
			case 'ibm870':
				return 'IBM870';

			case 'cp871':
			case 'csibm871':
			case 'ebcdiccpis':
			case 'ibm871':
				return 'IBM871';

			case 'cp880':
			case 'csibm880':
			case 'ebcdiccyrillic':
			case 'ibm880':
				return 'IBM880';

			case 'cp891':
			case 'csibm891':
			case 'ibm891':
				return 'IBM891';

			case 'cp903':
			case 'csibm903':
			case 'ibm903':
				return 'IBM903';

			case '904':
			case 'cp904':
			case 'csibbm904':
			case 'ibm904':
				return 'IBM904';

			case 'cp905':
			case 'csibm905':
			case 'ebcdiccptr':
			case 'ibm905':
				return 'IBM905';

			case 'cp918':
			case 'csibm918':
			case 'ebcdiccpar2':
			case 'ibm918':
				return 'IBM918';

			case 'ccsid924':
			case 'cp924':
			case 'ebcdiclatin9euro':
			case 'ibm924':
				return 'IBM00924';

			case 'cp1026':
			case 'csibm1026':
			case 'ibm1026':
				return 'IBM1026';

			case 'ibm1047':
				return 'IBM1047';

			case 'ccsid1140':
			case 'cp1140':
			case 'ebcdicus37euro':
			case 'ibm1140':
				return 'IBM01140';

			case 'ccsid1141':
			case 'cp1141':
			case 'ebcdicde273euro':
			case 'ibm1141':
				return 'IBM01141';

			case 'ccsid1142':
			case 'cp1142':
			case 'ebcdicdk277euro':
			case 'ebcdicno277euro':
			case 'ibm1142':
				return 'IBM01142';

			case 'ccsid1143':
			case 'cp1143':
			case 'ebcdicfi278euro':
			case 'ebcdicse278euro':
			case 'ibm1143':
				return 'IBM01143';

			case 'ccsid1144':
			case 'cp1144':
			case 'ebcdicit280euro':
			case 'ibm1144':
				return 'IBM01144';

			case 'ccsid1145':
			case 'cp1145':
			case 'ebcdices284euro':
			case 'ibm1145':
				return 'IBM01145';

			case 'ccsid1146':
			case 'cp1146':
			case 'ebcdicgb285euro':
			case 'ibm1146':
				return 'IBM01146';

			case 'ccsid1147':
			case 'cp1147':
			case 'ebcdicfr297euro':
			case 'ibm1147':
				return 'IBM01147';

			case 'ccsid1148':
			case 'cp1148':
			case 'ebcdicinternational500euro':
			case 'ibm1148':
				return 'IBM01148';

			case 'ccsid1149':
			case 'cp1149':
			case 'ebcdicis871euro':
			case 'ibm1149':
				return 'IBM01149';

			case 'csiso143iecp271':
			case 'iecp271':
			case 'isoir143':
				return 'IEC_P27-1';

			case 'csiso49inis':
			case 'inis':
			case 'isoir49':
				return 'INIS';

			case 'csiso50inis8':
			case 'inis8':
			case 'isoir50':
				return 'INIS-8';

			case 'csiso51iniscyrillic':
			case 'iniscyrillic':
			case 'isoir51':
				return 'INIS-cyrillic';

			case 'csinvariant':
			case 'invariant':
				return 'INVARIANT';

			case 'iso2022cn':
				return 'ISO-2022-CN';

			case 'iso2022cnext':
				return 'ISO-2022-CN-EXT';

			case 'csiso2022jp':
			case 'iso2022jp':
				return 'ISO-2022-JP';

			case 'csiso2022jp2':
			case 'iso2022jp2':
				return 'ISO-2022-JP-2';

			case 'csiso2022kr':
			case 'iso2022kr':
				return 'ISO-2022-KR';

			case 'cswindows30latin1':
			case 'iso88591windows30latin1':
				return 'ISO-8859-1-Windows-3.0-Latin-1';

			case 'cswindows31latin1':
			case 'iso88591windows31latin1':
				return 'ISO-8859-1-Windows-3.1-Latin-1';

			case 'csisolatin2':
			case 'iso88592':
			case 'iso885921987':
			case 'isoir101':
			case 'l2':
			case 'latin2':
				return 'ISO-8859-2';

			case 'cswindows31latin2':
			case 'iso88592windowslatin2':
				return 'ISO-8859-2-Windows-Latin-2';

			case 'csisolatin3':
			case 'iso88593':
			case 'iso885931988':
			case 'isoir109':
			case 'l3':
			case 'latin3':
				return 'ISO-8859-3';

			case 'csisolatin4':
			case 'iso88594':
			case 'iso885941988':
			case 'isoir110':
			case 'l4':
			case 'latin4':
				return 'ISO-8859-4';

			case 'csisolatincyrillic':
			case 'cyrillic':
			case 'iso88595':
			case 'iso885951988':
			case 'isoir144':
				return 'ISO-8859-5';

			case 'arabic':
			case 'asmo708':
			case 'csisolatinarabic':
			case 'ecma114':
			case 'iso88596':
			case 'iso885961987':
			case 'isoir127':
				return 'ISO-8859-6';

			case 'csiso88596e':
			case 'iso88596e':
				return 'ISO-8859-6-E';

			case 'csiso88596i':
			case 'iso88596i':
				return 'ISO-8859-6-I';

			case 'csisolatingreek':
			case 'ecma118':
			case 'elot928':
			case 'greek':
			case 'greek8':
			case 'iso88597':
			case 'iso885971987':
			case 'isoir126':
				return 'ISO-8859-7';

			case 'csisolatinhebrew':
			case 'hebrew':
			case 'iso88598':
			case 'iso885981988':
			case 'isoir138':
				return 'ISO-8859-8';

			case 'csiso88598e':
			case 'iso88598e':
				return 'ISO-8859-8-E';

			case 'csiso88598i':
			case 'iso88598i':
				return 'ISO-8859-8-I';

			case 'cswindows31latin5':
			case 'iso88599windowslatin5':
				return 'ISO-8859-9-Windows-Latin-5';

			case 'csisolatin6':
			case 'iso885910':
			case 'iso8859101992':
			case 'isoir157':
			case 'l6':
			case 'latin6':
				return 'ISO-8859-10';

			case 'iso885913':
				return 'ISO-8859-13';

			case 'iso885914':
			case 'iso8859141998':
			case 'isoceltic':
			case 'isoir199':
			case 'l8':
			case 'latin8':
				return 'ISO-8859-14';

			case 'iso885915':
			case 'latin9':
				return 'ISO-8859-15';

			case 'iso885916':
			case 'iso8859162001':
			case 'isoir226':
			case 'l10':
			case 'latin10':
				return 'ISO-8859-16';

			case 'iso10646j1':
				return 'ISO-10646-J-1';

			case 'csunicode':
			case 'iso10646ucs2':
				return 'ISO-10646-UCS-2';

			case 'csucs4':
			case 'iso10646ucs4':
				return 'ISO-10646-UCS-4';

			case 'csunicodeascii':
			case 'iso10646ucsbasic':
				return 'ISO-10646-UCS-Basic';

			case 'csunicodelatin1':
			case 'iso10646':
			case 'iso10646unicodelatin1':
				return 'ISO-10646-Unicode-Latin1';

			case 'csiso10646utf1':
			case 'iso10646utf1':
				return 'ISO-10646-UTF-1';

			case 'csiso115481':
			case 'iso115481':
			case 'isotr115481':
				return 'ISO-11548-1';

			case 'csiso90':
			case 'isoir90':
				return 'iso-ir-90';

			case 'csunicodeibm1261':
			case 'isounicodeibm1261':
				return 'ISO-Unicode-IBM-1261';

			case 'csunicodeibm1264':
			case 'isounicodeibm1264':
				return 'ISO-Unicode-IBM-1264';

			case 'csunicodeibm1265':
			case 'isounicodeibm1265':
				return 'ISO-Unicode-IBM-1265';

			case 'csunicodeibm1268':
			case 'isounicodeibm1268':
				return 'ISO-Unicode-IBM-1268';

			case 'csunicodeibm1276':
			case 'isounicodeibm1276':
				return 'ISO-Unicode-IBM-1276';

			case 'csiso646basic1983':
			case 'iso646basic1983':
			case 'ref':
				return 'ISO_646.basic:1983';

			case 'csiso2intlrefversion':
			case 'irv':
			case 'iso646irv1983':
			case 'isoir2':
				return 'ISO_646.irv:1983';

			case 'csiso2033':
			case 'e13b':
			case 'iso20331983':
			case 'isoir98':
				return 'ISO_2033-1983';

			case 'csiso5427cyrillic':
			case 'iso5427':
			case 'isoir37':
				return 'ISO_5427';

			case 'iso5427cyrillic1981':
			case 'iso54271981':
			case 'isoir54':
				return 'ISO_5427:1981';

			case 'csiso5428greek':
			case 'iso54281980':
			case 'isoir55':
				return 'ISO_5428:1980';

			case 'csiso6937add':
			case 'iso6937225':
			case 'isoir152':
				return 'ISO_6937-2-25';

			case 'csisotextcomm':
			case 'iso69372add':
			case 'isoir142':
				return 'ISO_6937-2-add';

			case 'csiso8859supp':
			case 'iso8859supp':
			case 'isoir154':
			case 'latin125':
				return 'ISO_8859-supp';

			case 'csiso10367box':
			case 'iso10367box':
			case 'isoir155':
				return 'ISO_10367-box';

			case 'csiso15italian':
			case 'iso646it':
			case 'isoir15':
			case 'it':
				return 'IT';

			case 'csiso13jisc6220jp':
			case 'isoir13':
			case 'jisc62201969':
			case 'jisc62201969jp':
			case 'katakana':
			case 'x2017':
				return 'JIS_C6220-1969-jp';

			case 'csiso14jisc6220ro':
			case 'iso646jp':
			case 'isoir14':
			case 'jisc62201969ro':
			case 'jp':
				return 'JIS_C6220-1969-ro';

			case 'csiso42jisc62261978':
			case 'isoir42':
			case 'jisc62261978':
				return 'JIS_C6226-1978';

			case 'csiso87jisx208':
			case 'isoir87':
			case 'jisc62261983':
			case 'jisx2081983':
			case 'x208':
				return 'JIS_C6226-1983';

			case 'csiso91jisc62291984a':
			case 'isoir91':
			case 'jisc62291984a':
			case 'jpocra':
				return 'JIS_C6229-1984-a';

			case 'csiso92jisc62991984b':
			case 'iso646jpocrb':
			case 'isoir92':
			case 'jisc62291984b':
			case 'jpocrb':
				return 'JIS_C6229-1984-b';

			case 'csiso93jis62291984badd':
			case 'isoir93':
			case 'jisc62291984badd':
			case 'jpocrbadd':
				return 'JIS_C6229-1984-b-add';

			case 'csiso94jis62291984hand':
			case 'isoir94':
			case 'jisc62291984hand':
			case 'jpocrhand':
				return 'JIS_C6229-1984-hand';

			case 'csiso95jis62291984handadd':
			case 'isoir95':
			case 'jisc62291984handadd':
			case 'jpocrhandadd':
				return 'JIS_C6229-1984-hand-add';

			case 'csiso96jisc62291984kana':
			case 'isoir96':
			case 'jisc62291984kana':
				return 'JIS_C6229-1984-kana';

			case 'csjisencoding':
			case 'jisencoding':
				return 'JIS_Encoding';

			case 'cshalfwidthkatakana':
			case 'jisx201':
			case 'x201':
				return 'JIS_X0201';

			case 'csiso159jisx2121990':
			case 'isoir159':
			case 'jisx2121990':
			case 'x212':
				return 'JIS_X0212-1990';

			case 'csiso141jusib1002':
			case 'iso646yu':
			case 'isoir141':
			case 'js':
			case 'jusib1002':
			case 'yu':
				return 'JUS_I.B1.002';

			case 'csiso147macedonian':
			case 'isoir147':
			case 'jusib1003mac':
			case 'macedonian':
				return 'JUS_I.B1.003-mac';

			case 'csiso146serbian':
			case 'isoir146':
			case 'jusib1003serb':
			case 'serbian':
				return 'JUS_I.B1.003-serb';

			case 'koi7switched':
				return 'KOI7-switched';

			case 'cskoi8r':
			case 'koi8r':
				return 'KOI8-R';

			case 'koi8u':
				return 'KOI8-U';

			case 'csksc5636':
			case 'iso646kr':
			case 'ksc5636':
				return 'KSC5636';

			case 'cskz1048':
			case 'kz1048':
			case 'rk1048':
			case 'strk10482002':
				return 'KZ-1048';

			case 'csiso19latingreek':
			case 'isoir19':
			case 'latingreek':
				return 'latin-greek';

			case 'csiso27latingreek1':
			case 'isoir27':
			case 'latingreek1':
				return 'Latin-greek-1';

			case 'csiso158lap':
			case 'isoir158':
			case 'lap':
			case 'latinlap':
				return 'latin-lap';

			case 'csmacintosh':
			case 'mac':
			case 'macintosh':
				return 'macintosh';

			case 'csmicrosoftpublishing':
			case 'microsoftpublishing':
				return 'Microsoft-Publishing';

			case 'csmnem':
			case 'mnem':
				return 'MNEM';

			case 'csmnemonic':
			case 'mnemonic':
				return 'MNEMONIC';

			case 'csiso86hungarian':
			case 'hu':
			case 'iso646hu':
			case 'isoir86':
			case 'msz77953':
				return 'MSZ_7795.3';

			case 'csnatsdano':
			case 'isoir91':
			case 'natsdano':
				return 'NATS-DANO';

			case 'csnatsdanoadd':
			case 'isoir92':
			case 'natsdanoadd':
				return 'NATS-DANO-ADD';

			case 'csnatssefi':
			case 'isoir81':
			case 'natssefi':
				return 'NATS-SEFI';

			case 'csnatssefiadd':
			case 'isoir82':
			case 'natssefiadd':
				return 'NATS-SEFI-ADD';

			case 'csiso151cuba':
			case 'cuba':
			case 'iso646cu':
			case 'isoir151':
			case 'ncnc1081':
				return 'NC_NC00-10:81';

			case 'csiso69french':
			case 'fr':
			case 'iso646fr':
			case 'isoir69':
			case 'nfz62010':
				return 'NF_Z_62-010';

			case 'csiso25french':
			case 'iso646fr1':
			case 'isoir25':
			case 'nfz620101973':
				return 'NF_Z_62-010_(1973)';

			case 'csiso60danishnorwegian':
			case 'csiso60norwegian1':
			case 'iso646no':
			case 'isoir60':
			case 'no':
			case 'ns45511':
				return 'NS_4551-1';

			case 'csiso61norwegian2':
			case 'iso646no2':
			case 'isoir61':
			case 'no2':
			case 'ns45512':
				return 'NS_4551-2';

			case 'osdebcdicdf3irv':
				return 'OSD_EBCDIC_DF03_IRV';

			case 'osdebcdicdf41':
				return 'OSD_EBCDIC_DF04_1';

			case 'osdebcdicdf415':
				return 'OSD_EBCDIC_DF04_15';

			case 'cspc8danishnorwegian':
			case 'pc8danishnorwegian':
				return 'PC8-Danish-Norwegian';

			case 'cspc8turkish':
			case 'pc8turkish':
				return 'PC8-Turkish';

			case 'csiso16portuguese':
			case 'iso646pt':
			case 'isoir16':
			case 'pt':
				return 'PT';

			case 'csiso84portuguese2':
			case 'iso646pt2':
			case 'isoir84':
			case 'pt2':
				return 'PT2';

			case 'cp154':
			case 'csptcp154':
			case 'cyrillicasian':
			case 'pt154':
			case 'ptcp154':
				return 'PTCP154';

			case 'scsu':
				return 'SCSU';

			case 'csiso10swedish':
			case 'fi':
			case 'iso646fi':
			case 'iso646se':
			case 'isoir10':
			case 'se':
			case 'sen850200b':
				return 'SEN_850200_B';

			case 'csiso11swedishfornames':
			case 'iso646se2':
			case 'isoir11':
			case 'se2':
			case 'sen850200c':
				return 'SEN_850200_C';

			case 'csiso102t617bit':
			case 'isoir102':
			case 't617bit':
				return 'T.61-7bit';

			case 'csiso103t618bit':
			case 'isoir103':
			case 't61':
			case 't618bit':
				return 'T.61-8bit';

			case 'csiso128t101g2':
			case 'isoir128':
			case 't101g2':
				return 'T.101-G2';

			case 'cstscii':
			case 'tscii':
				return 'TSCII';

			case 'csunicode11':
			case 'unicode11':
				return 'UNICODE-1-1';

			case 'csunicode11utf7':
			case 'unicode11utf7':
				return 'UNICODE-1-1-UTF-7';

			case 'csunknown8bit':
			case 'unknown8bit':
				return 'UNKNOWN-8BIT';

			case 'ansix341968':
			case 'ansix341986':
			case 'ascii':
			case 'cp367':
			case 'csascii':
			case 'ibm367':
			case 'iso646irv1991':
			case 'iso646us':
			case 'isoir6':
			case 'us':
			case 'usascii':
				return 'US-ASCII';

			case 'csusdk':
			case 'usdk':
				return 'us-dk';

			case 'utf7':
				return 'UTF-7';

			case 'utf8':
				return 'UTF-8';

			case 'utf16':
				return 'UTF-16';

			case 'utf16be':
				return 'UTF-16BE';

			case 'utf16le':
				return 'UTF-16LE';

			case 'utf32':
				return 'UTF-32';

			case 'utf32be':
				return 'UTF-32BE';

			case 'utf32le':
				return 'UTF-32LE';

			case 'csventurainternational':
			case 'venturainternational':
				return 'Ventura-International';

			case 'csventuramath':
			case 'venturamath':
				return 'Ventura-Math';

			case 'csventuraus':
			case 'venturaus':
				return 'Ventura-US';

			case 'csiso70videotexsupp1':
			case 'isoir70':
			case 'videotexsuppl':
				return 'videotex-suppl';

			case 'csviqr':
			case 'viqr':
				return 'VIQR';

			case 'csviscii':
			case 'viscii':
				return 'VISCII';

			case 'csshiftjis':
			case 'cswindows31j':
			case 'mskanji':
			case 'shiftjis':
			case 'windows31j':
				return 'Windows-31J';

			case 'iso885911':
			case 'tis620':
				return 'windows-874';

			case 'cseuckr':
			case 'csksc56011987':
			case 'euckr':
			case 'isoir149':
			case 'korean':
			case 'ksc5601':
			case 'ksc56011987':
			case 'ksc56011989':
			case 'windows949':
				return 'windows-949';

			case 'windows1250':
				return 'windows-1250';

			case 'windows1251':
				return 'windows-1251';

			case 'cp819':
			case 'csisolatin1':
			case 'ibm819':
			case 'iso88591':
			case 'iso885911987':
			case 'isoir100':
			case 'l1':
			case 'latin1':
			case 'windows1252':
				return 'windows-1252';

			case 'windows1253':
				return 'windows-1253';

			case 'csisolatin5':
			case 'iso88599':
			case 'iso885991989':
			case 'isoir148':
			case 'l5':
			case 'latin5':
			case 'windows1254':
				return 'windows-1254';

			case 'windows1255':
				return 'windows-1255';

			case 'windows1256':
				return 'windows-1256';

			case 'windows1257':
				return 'windows-1257';

			case 'windows1258':
				return 'windows-1258';

			default:
				return $charset;
		}
	}

	public static function get_curl_version()
	{
		if (is_array($curl = curl_version()))
		{
			$curl = $curl['version'];
		}
		elseif (substr($curl, 0, 5) === 'curl/')
		{
			$curl = substr($curl, 5, strcspn($curl, "\x09\x0A\x0B\x0C\x0D", 5));
		}
		elseif (substr($curl, 0, 8) === 'libcurl/')
		{
			$curl = substr($curl, 8, strcspn($curl, "\x09\x0A\x0B\x0C\x0D", 8));
		}
		else
		{
			$curl = 0;
		}
		return $curl;
	}

	public static function is_subclass_of($class1, $class2)
	{
		if (func_num_args() !== 2)
		{
			trigger_error('Wrong parameter count for SimplePie_Misc::is_subclass_of()', E_USER_WARNING);
		}
		elseif (version_compare(PHP_VERSION, '5.0.3', '>=') || is_object($class1))
		{
			return is_subclass_of($class1, $class2);
		}
		elseif (is_string($class1) && is_string($class2))
		{
			if (class_exists($class1))
			{
				if (class_exists($class2))
				{
					$class2 = strtolower($class2);
					while ($class1 = strtolower(get_parent_class($class1)))
					{
						if ($class1 === $class2)
						{
							return true;
						}
					}
				}
			}
			else
			{
				trigger_error('Unknown class passed as parameter', E_USER_WARNNG);
			}
		}
		return false;
	}

	/**
	 * Strip HTML comments
	 *
	 * @param string $data Data to strip comments from
	 * @return string Comment stripped string
	 */
	public static function strip_comments($data)
	{
		$output = '';
		while (($start = strpos($data, '<!--')) !== false)
		{
			$output .= substr($data, 0, $start);
			if (($end = strpos($data, '-->', $start)) !== false)
			{
				$data = substr_replace($data, '', 0, $end + 3);
			}
			else
			{
				$data = '';
			}
		}
		return $output . $data;
	}

	public static function parse_date($dt)
	{
		$parser = SimplePie_Parse_Date::get();
		return $parser->parse($dt);
	}

	/**
	 * Decode HTML entities
	 *
	 * @deprecated Use DOMDocument instead
	 * @param string $data Input data
	 * @return string Output data
	 */
	public static function entities_decode($data)
	{
		$decoder = new SimplePie_Decode_HTML_Entities($data);
		return $decoder->parse();
	}

	/**
	 * Remove RFC822 comments
	 *
	 * @param string $data Data to strip comments from
	 * @return string Comment stripped string
	 */
	public static function uncomment_rfc822($string)
	{
		$string = (string) $string;
		$position = 0;
		$length = strlen($string);
		$depth = 0;

		$output = '';

		while ($position < $length && ($pos = strpos($string, '(', $position)) !== false)
		{
			$output .= substr($string, $position, $pos - $position);
			$position = $pos + 1;
			if ($string[$pos - 1] !== '\\')
			{
				$depth++;
				while ($depth && $position < $length)
				{
					$position += strcspn($string, '()', $position);
					if ($string[$position - 1] === '\\')
					{
						$position++;
						continue;
					}
					elseif (isset($string[$position]))
					{
						switch ($string[$position])
						{
							case '(':
								$depth++;
								break;

							case ')':
								$depth--;
								break;
						}
						$position++;
					}
					else
					{
						break;
					}
				}
			}
			else
			{
				$output .= '(';
			}
		}
		$output .= substr($string, $position);

		return $output;
	}

	public static function parse_mime($mime)
	{
		if (($pos = strpos($mime, ';')) === false)
		{
			return trim($mime);
		}
		else
		{
			return trim(substr($mime, 0, $pos));
		}
	}

	public static function htmlspecialchars_decode($string, $quote_style)
	{
		if (function_exists('htmlspecialchars_decode'))
		{
			return htmlspecialchars_decode($string, $quote_style);
		}
		else
		{
			return strtr($string, array_flip(get_html_translation_table(HTML_SPECIALCHARS, $quote_style)));
		}
	}

	public static function atom_03_construct_type($attribs)
	{
		if (isset($attribs['']['mode']) && strtolower(trim($attribs['']['mode']) === 'base64'))
		{
			$mode = SIMPLEPIE_CONSTRUCT_BASE64;
		}
		else
		{
			$mode = SIMPLEPIE_CONSTRUCT_NONE;
		}
		if (isset($attribs['']['type']))
		{
			switch (strtolower(trim($attribs['']['type'])))
			{
				case 'text':
				case 'text/plain':
					return SIMPLEPIE_CONSTRUCT_TEXT | $mode;

				case 'html':
				case 'text/html':
					return SIMPLEPIE_CONSTRUCT_HTML | $mode;

				case 'xhtml':
				case 'application/xhtml+xml':
					return SIMPLEPIE_CONSTRUCT_XHTML | $mode;

				default:
					return SIMPLEPIE_CONSTRUCT_NONE | $mode;
			}
		}
		else
		{
			return SIMPLEPIE_CONSTRUCT_TEXT | $mode;
		}
	}

	public static function atom_10_construct_type($attribs)
	{
		if (isset($attribs['']['type']))
		{
			switch (strtolower(trim($attribs['']['type'])))
			{
				case 'text':
					return SIMPLEPIE_CONSTRUCT_TEXT;

				case 'html':
					return SIMPLEPIE_CONSTRUCT_HTML;

				case 'xhtml':
					return SIMPLEPIE_CONSTRUCT_XHTML;

				default:
					return SIMPLEPIE_CONSTRUCT_NONE;
			}
		}
		return SIMPLEPIE_CONSTRUCT_TEXT;
	}

	public static function atom_10_content_construct_type($attribs)
	{
		if (isset($attribs['']['type']))
		{
			$type = strtolower(trim($attribs['']['type']));
			switch ($type)
			{
				case 'text':
					return SIMPLEPIE_CONSTRUCT_TEXT;

				case 'html':
					return SIMPLEPIE_CONSTRUCT_HTML;

				case 'xhtml':
					return SIMPLEPIE_CONSTRUCT_XHTML;
			}
			if (in_array(substr($type, -4), array('+xml', '/xml')) || substr($type, 0, 5) === 'text/')
			{
				return SIMPLEPIE_CONSTRUCT_NONE;
			}
			else
			{
				return SIMPLEPIE_CONSTRUCT_BASE64;
			}
		}
		else
		{
			return SIMPLEPIE_CONSTRUCT_TEXT;
		}
	}

	public static function is_isegment_nz_nc($string)
	{
		return (bool) preg_match('/^([A-Za-z0-9\-._~\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}!$&\'()*+,;=@]|(%[0-9ABCDEF]{2}))+$/u', $string);
	}

	public static function space_seperated_tokens($string)
	{
		$space_characters = "\x20\x09\x0A\x0B\x0C\x0D";
		$string_length = strlen($string);

		$position = strspn($string, $space_characters);
		$tokens = array();

		while ($position < $string_length)
		{
			$len = strcspn($string, $space_characters, $position);
			$tokens[] = substr($string, $position, $len);
			$position += $len;
			$position += strspn($string, $space_characters, $position);
		}

		return $tokens;
	}

	public static function array_unique($array)
	{
		if (version_compare(PHP_VERSION, '5.2', '>='))
		{
			return array_unique($array);
		}
		else
		{
			$array = (array) $array;
			$new_array = array();
			$new_array_strings = array();
			foreach ($array as $key => $value)
			{
				if (is_object($value))
				{
					if (method_exists($value, '__toString'))
					{
						$cmp = $value->__toString();
					}
					else
					{
						trigger_error('Object of class ' . get_class($value) . ' could not be converted to string', E_USER_ERROR);
					}
				}
				elseif (is_array($value))
				{
					$cmp = (string) reset($value);
				}
				else
				{
					$cmp = (string) $value;
				}
				if (!in_array($cmp, $new_array_strings))
				{
					$new_array[$key] = $value;
					$new_array_strings[] = $cmp;
				}
			}
			return $new_array;
		}
	}

	/**
	 * Converts a unicode codepoint to a UTF-8 character
	 *
	 * @static
	 * @param int $codepoint Unicode codepoint
	 * @return string UTF-8 character
	 */
	public static function codepoint_to_utf8($codepoint)
	{
		$codepoint = (int) $codepoint;
		if ($codepoint < 0)
		{
			return false;
		}
		else if ($codepoint <= 0x7f)
		{
			return chr($codepoint);
		}
		else if ($codepoint <= 0x7ff)
		{
			return chr(0xc0 | ($codepoint >> 6)) . chr(0x80 | ($codepoint & 0x3f));
		}
		else if ($codepoint <= 0xffff)
		{
			return chr(0xe0 | ($codepoint >> 12)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
		}
		else if ($codepoint <= 0x10ffff)
		{
			return chr(0xf0 | ($codepoint >> 18)) . chr(0x80 | (($codepoint >> 12) & 0x3f)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
		}
		else
		{
			// U+FFFD REPLACEMENT CHARACTER
			return "\xEF\xBF\xBD";
		}
	}

	/**
	 * Similar to parse_str()
	 *
	 * Returns an associative array of name/value pairs, where the value is an
	 * array of values that have used the same name
	 *
	 * @static
	 * @param string $str The input string.
	 * @return array
	 */
	public static function parse_str($str)
	{
		$return = array();
		$str = explode('&', $str);

		foreach ($str as $section)
		{
			if (strpos($section, '=') !== false)
			{
				list($name, $value) = explode('=', $section, 2);
				$return[urldecode($name)][] = urldecode($value);
			}
			else
			{
				$return[urldecode($section)][] = null;
			}
		}

		return $return;
	}

	/**
	 * Detect XML encoding, as per XML 1.0 Appendix F.1
	 *
	 * @todo Add support for EBCDIC
	 * @param string $data XML data
	 * @param SimplePie_Registry $registry Class registry
	 * @return array Possible encodings
	 */
	public static function xml_encoding($data, &$registry)
	{
		// UTF-32 Big Endian BOM
		if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
		{
			$encoding[] = 'UTF-32BE';
		}
		// UTF-32 Little Endian BOM
		elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
		{
			$encoding[] = 'UTF-32LE';
		}
		// UTF-16 Big Endian BOM
		elseif (substr($data, 0, 2) === "\xFE\xFF")
		{
			$encoding[] = 'UTF-16BE';
		}
		// UTF-16 Little Endian BOM
		elseif (substr($data, 0, 2) === "\xFF\xFE")
		{
			$encoding[] = 'UTF-16LE';
		}
		// UTF-8 BOM
		elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
		{
			$encoding[] = 'UTF-8';
		}
		// UTF-32 Big Endian Without BOM
		elseif (substr($data, 0, 20) === "\x00\x00\x00\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C")
		{
			if ($pos = strpos($data, "\x00\x00\x00\x3F\x00\x00\x00\x3E"))
			{
				$parser = $registry->create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8')));
				if ($parser->parse())
				{
					$encoding[] = $parser->encoding;
				}
			}
			$encoding[] = 'UTF-32BE';
		}
		// UTF-32 Little Endian Without BOM
		elseif (substr($data, 0, 20) === "\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C\x00\x00\x00")
		{
			if ($pos = strpos($data, "\x3F\x00\x00\x00\x3E\x00\x00\x00"))
			{
				$parser = $registry->create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8')));
				if ($parser->parse())
				{
					$encoding[] = $parser->encoding;
				}
			}
			$encoding[] = 'UTF-32LE';
		}
		// UTF-16 Big Endian Without BOM
		elseif (substr($data, 0, 10) === "\x00\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C")
		{
			if ($pos = strpos($data, "\x00\x3F\x00\x3E"))
			{
				$parser = $registry->create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8')));
				if ($parser->parse())
				{
					$encoding[] = $parser->encoding;
				}
			}
			$encoding[] = 'UTF-16BE';
		}
		// UTF-16 Little Endian Without BOM
		elseif (substr($data, 0, 10) === "\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C\x00")
		{
			if ($pos = strpos($data, "\x3F\x00\x3E\x00"))
			{
				$parser = $registry->create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8')));
				if ($parser->parse())
				{
					$encoding[] = $parser->encoding;
				}
			}
			$encoding[] = 'UTF-16LE';
		}
		// US-ASCII (or superset)
		elseif (substr($data, 0, 5) === "\x3C\x3F\x78\x6D\x6C")
		{
			if ($pos = strpos($data, "\x3F\x3E"))
			{
				$parser = $registry->create('XML_Declaration_Parser', array(substr($data, 5, $pos - 5)));
				if ($parser->parse())
				{
					$encoding[] = $parser->encoding;
				}
			}
			$encoding[] = 'UTF-8';
		}
		// Fallback to UTF-8
		else
		{
			$encoding[] = 'UTF-8';
		}
		return $encoding;
	}

	public static function output_javascript()
	{
		if (function_exists('ob_gzhandler'))
		{
			ob_start('ob_gzhandler');
		}
		header('Content-type: text/javascript; charset: UTF-8');
		header('Cache-Control: must-revalidate');
		header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 604800) . ' GMT'); // 7 days
		?>
function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
	if (placeholder != '') {
		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" href="'+link+'" src="'+placeholder+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="false" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
	}
	else {
		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" src="'+link+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="true" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
	}
}

function embed_flash(bgcolor, width, height, link, loop, type) {
	document.writeln('<embed src="'+link+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="'+type+'" quality="high" width="'+width+'" height="'+height+'" bgcolor="'+bgcolor+'" loop="'+loop+'"></embed>');
}

function embed_flv(width, height, link, placeholder, loop, player) {
	document.writeln('<embed src="'+player+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="'+width+'" height="'+height+'" wmode="transparent" flashvars="file='+link+'&autostart=false&repeat='+loop+'&showdigits=true&showfsbutton=false"></embed>');
}

function embed_wmedia(width, height, link) {
	document.writeln('<embed type="application/x-mplayer2" src="'+link+'" autosize="1" width="'+width+'" height="'+height+'" showcontrols="1" showstatusbar="0" showdisplay="0" autostart="0"></embed>');
}
		<?php
	}

	/**
	 * Get the SimplePie build timestamp
	 *
	 * Uses the git index if it exists, otherwise uses the modification time
	 * of the newest file.
	 */
	public static function get_build()
	{
		$root = dirname(dirname(__FILE__));
		if (file_exists($root . '/.git/index'))
		{
			return filemtime($root . '/.git/index');
		}
		elseif (file_exists($root . '/SimplePie'))
		{
			$time = 0;
			foreach (glob($root . '/SimplePie/*.php') as $file)
			{
				if (($mtime = filemtime($file)) > $time)
				{
					$time = $mtime;
				}
			}
			return $time;
		}
		elseif (file_exists(dirname(__FILE__) . '/Core.php'))
		{
			return filemtime(dirname(__FILE__) . '/Core.php');
		}
		else
		{
			return filemtime(__FILE__);
		}
	}

	/**
	 * Format debugging information
	 */
	public static function debug(&$sp)
	{
		$info = 'SimplePie ' . SIMPLEPIE_VERSION . ' Build ' . SIMPLEPIE_BUILD . "\n";
		$info .= 'PHP ' . PHP_VERSION . "\n";
		if ($sp->error() !== null)
		{
			$info .= 'Error occurred: ' . $sp->error() . "\n";
		}
		else
		{
			$info .= "No error found.\n";
		}
		$info .= "Extensions:\n";
		$extensions = array('pcre', 'curl', 'zlib', 'mbstring', 'iconv', 'xmlreader', 'xml');
		foreach ($extensions as $ext)
		{
			if (extension_loaded($ext))
			{
				$info .= "    $ext loaded\n";
				switch ($ext)
				{
					case 'pcre':
						$info .= '      Version ' . PCRE_VERSION . "\n";
						break;
					case 'curl':
						$version = curl_version();
						$info .= '      Version ' . $version['version'] . "\n";
						break;
					case 'mbstring':
						$info .= '      Overloading: ' . mb_get_info('func_overload') . "\n";
						break;
					case 'iconv':
						$info .= '      Version ' . ICONV_VERSION . "\n";
						break;
					case 'xml':
						$info .= '      Version ' . LIBXML_DOTTED_VERSION . "\n";
						break;
				}
			}
			else
			{
				$info .= "    $ext not loaded\n";
			}
		}
		return $info;
	}

	public static function silence_errors($num, $str)
	{
		// No-op
	}
}

/**
 * Parses XML into something sane
 *
 *
 * This class can be overloaded with {@see SimplePie::set_parser_class()}
 *
 * @package SimplePie
 */
class SimplePie_Parser
{
	var $error_code;
	var $error_string;
	var $current_line;
	var $current_column;
	var $current_byte;
	var $separator = ' ';
	var $namespace = array('');
	var $element = array('');
	var $xml_base = array('');
	var $xml_base_explicit = array(false);
	var $xml_lang = array('');
	var $data = array();
	var $datas = array(array());
	var $current_xhtml_construct = -1;
	var $encoding;
	protected $registry;

	public function set_registry(SimplePie_Registry &$registry)
	{
		$this->registry = &$registry;
	}

	public function parse(&$data, $encoding)
	{
		// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
		if (strtoupper($encoding) === 'US-ASCII')
		{
			$this->encoding = 'UTF-8';
		}
		else
		{
			$this->encoding = $encoding;
		}

		// Strip BOM:
		// UTF-32 Big Endian BOM
		if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
		{
			$data = substr($data, 4);
		}
		// UTF-32 Little Endian BOM
		elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
		{
			$data = substr($data, 4);
		}
		// UTF-16 Big Endian BOM
		elseif (substr($data, 0, 2) === "\xFE\xFF")
		{
			$data = substr($data, 2);
		}
		// UTF-16 Little Endian BOM
		elseif (substr($data, 0, 2) === "\xFF\xFE")
		{
			$data = substr($data, 2);
		}
		// UTF-8 BOM
		elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
		{
			$data = substr($data, 3);
		}

		if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\x09\x0A\x0D\x20") && ($pos = strpos($data, '?>')) !== false)
		{
			$declaration = $this->registry->create('XML_Declaration_Parser', array(substr($data, 5, $pos - 5)));
			if ($declaration->parse())
			{
				$data = substr($data, $pos + 2);
				$data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' . $data;
			}
			else
			{
				$this->error_string = 'SimplePie bug! Please report this!';
				return false;
			}
		}

		$return = true;

		static $xml_is_sane = null;
		if ($xml_is_sane === null)
		{
			$parser_check = xml_parser_create();
			xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
			xml_parser_free($parser_check);
			$xml_is_sane = isset($values[0]['value']);
		}

		// Create the parser
		if ($xml_is_sane)
		{
			$xml = xml_parser_create_ns($this->encoding, $this->separator);
			xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1);
			xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0);
			xml_set_object($xml, $this);
			xml_set_character_data_handler($xml, 'cdata');
			xml_set_element_handler($xml, 'tag_open', 'tag_close');

			// Parse!
			if (!xml_parse($xml, $data, true))
			{
				$this->error_code = xml_get_error_code($xml);
				$this->error_string = xml_error_string($this->error_code);
				$return = false;
			}
			$this->current_line = xml_get_current_line_number($xml);
			$this->current_column = xml_get_current_column_number($xml);
			$this->current_byte = xml_get_current_byte_index($xml);
			xml_parser_free($xml);
			return $return;
		}
		else
		{
			libxml_clear_errors();
			$xml = new XMLReader();
			$xml->xml($data);
			while (@$xml->read())
			{
				switch ($xml->nodeType)
				{

					case constant('XMLReader::END_ELEMENT'):
						if ($xml->namespaceURI !== '')
						{
							$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
						}
						else
						{
							$tagName = $xml->localName;
						}
						$this->tag_close(null, $tagName);
						break;
					case constant('XMLReader::ELEMENT'):
						$empty = $xml->isEmptyElement;
						if ($xml->namespaceURI !== '')
						{
							$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
						}
						else
						{
							$tagName = $xml->localName;
						}
						$attributes = array();
						while ($xml->moveToNextAttribute())
						{
							if ($xml->namespaceURI !== '')
							{
								$attrName = $xml->namespaceURI . $this->separator . $xml->localName;
							}
							else
							{
								$attrName = $xml->localName;
							}
							$attributes[$attrName] = $xml->value;
						}
						$this->tag_open(null, $tagName, $attributes);
						if ($empty)
						{
							$this->tag_close(null, $tagName);
						}
						break;
					case constant('XMLReader::TEXT'):

					case constant('XMLReader::CDATA'):
						$this->cdata(null, $xml->value);
						break;
				}
			}
			if ($error = libxml_get_last_error())
			{
				$this->error_code = $error->code;
				$this->error_string = $error->message;
				$this->current_line = $error->line;
				$this->current_column = $error->column;
				return false;
			}
			else
			{
				return true;
			}
		}
	}

	public function get_error_code()
	{
		return $this->error_code;
	}

	public function get_error_string()
	{
		return $this->error_string;
	}

	public function get_current_line()
	{
		return $this->current_line;
	}

	public function get_current_column()
	{
		return $this->current_column;
	}

	public function get_current_byte()
	{
		return $this->current_byte;
	}

	public function get_data()
	{
		return $this->data;
	}

	public function tag_open($parser, $tag, $attributes)
	{
		list($this->namespace[], $this->element[]) = $this->split_ns($tag);

		$attribs = array();
		foreach ($attributes as $name => $value)
		{
			list($attrib_namespace, $attribute) = $this->split_ns($name);
			$attribs[$attrib_namespace][$attribute] = $value;
		}

		if (isset($attribs[SIMPLEPIE_NAMESPACE_XML]['base']))
		{
			$this->xml_base[] = $this->registry->call('Misc', 'absolutize_url', array($attribs[SIMPLEPIE_NAMESPACE_XML]['base'], end($this->xml_base)));
			$this->xml_base_explicit[] = true;
		}
		else
		{
			$this->xml_base[] = end($this->xml_base);
			$this->xml_base_explicit[] = end($this->xml_base_explicit);
		}

		if (isset($attribs[SIMPLEPIE_NAMESPACE_XML]['lang']))
		{
			$this->xml_lang[] = $attribs[SIMPLEPIE_NAMESPACE_XML]['lang'];
		}
		else
		{
			$this->xml_lang[] = end($this->xml_lang);
		}

		if ($this->current_xhtml_construct >= 0)
		{
			$this->current_xhtml_construct++;
			if (end($this->namespace) === SIMPLEPIE_NAMESPACE_XHTML)
			{
				$this->data['data'] .= '<' . end($this->element);
				if (isset($attribs['']))
				{
					foreach ($attribs[''] as $name => $value)
					{
						$this->data['data'] .= ' ' . $name . '="' . htmlspecialchars($value, ENT_COMPAT, $this->encoding) . '"';
					}
				}
				$this->data['data'] .= '>';
			}
		}
		else
		{
			$this->datas[] =& $this->data;
			$this->data =& $this->data['child'][end($this->namespace)][end($this->element)][];
			$this->data = array('data' => '', 'attribs' => $attribs, 'xml_base' => end($this->xml_base), 'xml_base_explicit' => end($this->xml_base_explicit), 'xml_lang' => end($this->xml_lang));
			if ((end($this->namespace) === SIMPLEPIE_NAMESPACE_ATOM_03 && in_array(end($this->element), array('title', 'tagline', 'copyright', 'info', 'summary', 'content')) && isset($attribs['']['mode']) && $attribs['']['mode'] === 'xml')
			|| (end($this->namespace) === SIMPLEPIE_NAMESPACE_ATOM_10 && in_array(end($this->element), array('rights', 'subtitle', 'summary', 'info', 'title', 'content')) && isset($attribs['']['type']) && $attribs['']['type'] === 'xhtml'))
			{
				$this->current_xhtml_construct = 0;
			}
		}
	}

	public function cdata($parser, $cdata)
	{
		if ($this->current_xhtml_construct >= 0)
		{
			$this->data['data'] .= htmlspecialchars($cdata, ENT_QUOTES, $this->encoding);
		}
		else
		{
			$this->data['data'] .= $cdata;
		}
	}

	public function tag_close($parser, $tag)
	{
		if ($this->current_xhtml_construct >= 0)
		{
			$this->current_xhtml_construct--;
			if (end($this->namespace) === SIMPLEPIE_NAMESPACE_XHTML && !in_array(end($this->element), array('area', 'base', 'basefont', 'br', 'col', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param')))
			{
				$this->data['data'] .= '</' . end($this->element) . '>';
			}
		}
		if ($this->current_xhtml_construct === -1)
		{
			$this->data =& $this->datas[count($this->datas) - 1];
			array_pop($this->datas);
		}

		array_pop($this->element);
		array_pop($this->namespace);
		array_pop($this->xml_base);
		array_pop($this->xml_base_explicit);
		array_pop($this->xml_lang);
	}

	public function split_ns($string)
	{
		static $cache = array();
		if (!isset($cache[$string]))
		{
			if ($pos = strpos($string, $this->separator))
			{
				static $separator_length;
				if (!$separator_length)
				{
					$separator_length = strlen($this->separator);
				}
				$namespace = substr($string, 0, $pos);
				$local_name = substr($string, $pos + $separator_length);
				if (strtolower($namespace) === SIMPLEPIE_NAMESPACE_ITUNES)
				{
					$namespace = SIMPLEPIE_NAMESPACE_ITUNES;
				}

				// Normalize the Media RSS namespaces
				if ($namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG ||
					$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG2 ||
					$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG3 ||
					$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG4 ||
					$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG5 )
				{
					$namespace = SIMPLEPIE_NAMESPACE_MEDIARSS;
				}
				$cache[$string] = array($namespace, $local_name);
			}
			else
			{
				$cache[$string] = array('', $string);
			}
		}
		return $cache[$string];
	}
}

/**
 * Decode HTML Entities
 *
 * This implements HTML5 as of revision 967 (2007-06-28)
 *
 * @deprecated Use DOMDocument instead!
 * @package SimplePie
 */
class SimplePie_Decode_HTML_Entities
{
	/**
	 * Data to be parsed
	 *
	 * @access private
	 * @var string
	 */
	var $data = '';

	/**
	 * Currently consumed bytes
	 *
	 * @access private
	 * @var string
	 */
	var $consumed = '';

	/**
	 * Position of the current byte being parsed
	 *
	 * @access private
	 * @var int
	 */
	var $position = 0;

	/**
	 * Create an instance of the class with the input data
	 *
	 * @access public
	 * @param string $data Input data
	 */
	public function __construct($data)
	{
		$this->data = $data;
	}

	/**
	 * Parse the input data
	 *
	 * @access public
	 * @return string Output data
	 */
	public function parse()
	{
		while (($this->position = strpos($this->data, '&', $this->position)) !== false)
		{
			$this->consume();
			$this->entity();
			$this->consumed = '';
		}
		return $this->data;
	}

	/**
	 * Consume the next byte
	 *
	 * @access private
	 * @return mixed The next byte, or false, if there is no more data
	 */
	public function consume()
	{
		if (isset($this->data[$this->position]))
		{
			$this->consumed .= $this->data[$this->position];
			return $this->data[$this->position++];
		}
		else
		{
			return false;
		}
	}

	/**
	 * Consume a range of characters
	 *
	 * @access private
	 * @param string $chars Characters to consume
	 * @return mixed A series of characters that match the range, or false
	 */
	public function consume_range($chars)
	{
		if ($len = strspn($this->data, $chars, $this->position))
		{
			$data = substr($this->data, $this->position, $len);
			$this->consumed .= $data;
			$this->position += $len;
			return $data;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Unconsume one byte
	 *
	 * @access private
	 */
	public function unconsume()
	{
		$this->consumed = substr($this->consumed, 0, -1);
		$this->position--;
	}

	/**
	 * Decode an entity
	 *
	 * @access private
	 */
	public function entity()
	{
		switch ($this->consume())
		{
			case "\x09":
			case "\x0A":
			case "\x0B":
			case "\x0B":
			case "\x0C":
			case "\x20":
			case "\x3C":
			case "\x26":
			case false:
				break;

			case "\x23":
				switch ($this->consume())
				{
					case "\x78":
					case "\x58":
						$range = '0123456789ABCDEFabcdef';
						$hex = true;
						break;

					default:
						$range = '0123456789';
						$hex = false;
						$this->unconsume();
						break;
				}

				if ($codepoint = $this->consume_range($range))
				{
					static $windows_1252_specials = array(0x0D => "\x0A", 0x80 => "\xE2\x82\xAC", 0x81 => "\xEF\xBF\xBD", 0x82 => "\xE2\x80\x9A", 0x83 => "\xC6\x92", 0x84 => "\xE2\x80\x9E", 0x85 => "\xE2\x80\xA6", 0x86 => "\xE2\x80\xA0", 0x87 => "\xE2\x80\xA1", 0x88 => "\xCB\x86", 0x89 => "\xE2\x80\xB0", 0x8A => "\xC5\xA0", 0x8B => "\xE2\x80\xB9", 0x8C => "\xC5\x92", 0x8D => "\xEF\xBF\xBD", 0x8E => "\xC5\xBD", 0x8F => "\xEF\xBF\xBD", 0x90 => "\xEF\xBF\xBD", 0x91 => "\xE2\x80\x98", 0x92 => "\xE2\x80\x99", 0x93 => "\xE2\x80\x9C", 0x94 => "\xE2\x80\x9D", 0x95 => "\xE2\x80\xA2", 0x96 => "\xE2\x80\x93", 0x97 => "\xE2\x80\x94", 0x98 => "\xCB\x9C", 0x99 => "\xE2\x84\xA2", 0x9A => "\xC5\xA1", 0x9B => "\xE2\x80\xBA", 0x9C => "\xC5\x93", 0x9D => "\xEF\xBF\xBD", 0x9E => "\xC5\xBE", 0x9F => "\xC5\xB8");

					if ($hex)
					{
						$codepoint = hexdec($codepoint);
					}
					else
					{
						$codepoint = intval($codepoint);
					}

					if (isset($windows_1252_specials[$codepoint]))
					{
						$replacement = $windows_1252_specials[$codepoint];
					}
					else
					{
						$replacement = SimplePie_Misc::codepoint_to_utf8($codepoint);
					}

					if (!in_array($this->consume(), array(';', false), true))
					{
						$this->unconsume();
					}

					$consumed_length = strlen($this->consumed);
					$this->data = substr_replace($this->data, $replacement, $this->position - $consumed_length, $consumed_length);
					$this->position += strlen($replacement) - $consumed_length;
				}
				break;

			default:
				static $entities = array('Aacute' => "\xC3\x81", 'aacute' => "\xC3\xA1", 'Aacute;' => "\xC3\x81", 'aacute;' => "\xC3\xA1", 'Acirc' => "\xC3\x82", 'acirc' => "\xC3\xA2", 'Acirc;' => "\xC3\x82", 'acirc;' => "\xC3\xA2", 'acute' => "\xC2\xB4", 'acute;' => "\xC2\xB4", 'AElig' => "\xC3\x86", 'aelig' => "\xC3\xA6", 'AElig;' => "\xC3\x86", 'aelig;' => "\xC3\xA6", 'Agrave' => "\xC3\x80", 'agrave' => "\xC3\xA0", 'Agrave;' => "\xC3\x80", 'agrave;' => "\xC3\xA0", 'alefsym;' => "\xE2\x84\xB5", 'Alpha;' => "\xCE\x91", 'alpha;' => "\xCE\xB1", 'AMP' => "\x26", 'amp' => "\x26", 'AMP;' => "\x26", 'amp;' => "\x26", 'and;' => "\xE2\x88\xA7", 'ang;' => "\xE2\x88\xA0", 'apos;' => "\x27", 'Aring' => "\xC3\x85", 'aring' => "\xC3\xA5", 'Aring;' => "\xC3\x85", 'aring;' => "\xC3\xA5", 'asymp;' => "\xE2\x89\x88", 'Atilde' => "\xC3\x83", 'atilde' => "\xC3\xA3", 'Atilde;' => "\xC3\x83", 'atilde;' => "\xC3\xA3", 'Auml' => "\xC3\x84", 'auml' => "\xC3\xA4", 'Auml;' => "\xC3\x84", 'auml;' => "\xC3\xA4", 'bdquo;' => "\xE2\x80\x9E", 'Beta;' => "\xCE\x92", 'beta;' => "\xCE\xB2", 'brvbar' => "\xC2\xA6", 'brvbar;' => "\xC2\xA6", 'bull;' => "\xE2\x80\xA2", 'cap;' => "\xE2\x88\xA9", 'Ccedil' => "\xC3\x87", 'ccedil' => "\xC3\xA7", 'Ccedil;' => "\xC3\x87", 'ccedil;' => "\xC3\xA7", 'cedil' => "\xC2\xB8", 'cedil;' => "\xC2\xB8", 'cent' => "\xC2\xA2", 'cent;' => "\xC2\xA2", 'Chi;' => "\xCE\xA7", 'chi;' => "\xCF\x87", 'circ;' => "\xCB\x86", 'clubs;' => "\xE2\x99\xA3", 'cong;' => "\xE2\x89\x85", 'COPY' => "\xC2\xA9", 'copy' => "\xC2\xA9", 'COPY;' => "\xC2\xA9", 'copy;' => "\xC2\xA9", 'crarr;' => "\xE2\x86\xB5", 'cup;' => "\xE2\x88\xAA", 'curren' => "\xC2\xA4", 'curren;' => "\xC2\xA4", 'Dagger;' => "\xE2\x80\xA1", 'dagger;' => "\xE2\x80\xA0", 'dArr;' => "\xE2\x87\x93", 'darr;' => "\xE2\x86\x93", 'deg' => "\xC2\xB0", 'deg;' => "\xC2\xB0", 'Delta;' => "\xCE\x94", 'delta;' => "\xCE\xB4", 'diams;' => "\xE2\x99\xA6", 'divide' => "\xC3\xB7", 'divide;' => "\xC3\xB7", 'Eacute' => "\xC3\x89", 'eacute' => "\xC3\xA9", 'Eacute;' => "\xC3\x89", 'eacute;' => "\xC3\xA9", 'Ecirc' => "\xC3\x8A", 'ecirc' => "\xC3\xAA", 'Ecirc;' => "\xC3\x8A", 'ecirc;' => "\xC3\xAA", 'Egrave' => "\xC3\x88", 'egrave' => "\xC3\xA8", 'Egrave;' => "\xC3\x88", 'egrave;' => "\xC3\xA8", 'empty;' => "\xE2\x88\x85", 'emsp;' => "\xE2\x80\x83", 'ensp;' => "\xE2\x80\x82", 'Epsilon;' => "\xCE\x95", 'epsilon;' => "\xCE\xB5", 'equiv;' => "\xE2\x89\xA1", 'Eta;' => "\xCE\x97", 'eta;' => "\xCE\xB7", 'ETH' => "\xC3\x90", 'eth' => "\xC3\xB0", 'ETH;' => "\xC3\x90", 'eth;' => "\xC3\xB0", 'Euml' => "\xC3\x8B", 'euml' => "\xC3\xAB", 'Euml;' => "\xC3\x8B", 'euml;' => "\xC3\xAB", 'euro;' => "\xE2\x82\xAC", 'exist;' => "\xE2\x88\x83", 'fnof;' => "\xC6\x92", 'forall;' => "\xE2\x88\x80", 'frac12' => "\xC2\xBD", 'frac12;' => "\xC2\xBD", 'frac14' => "\xC2\xBC", 'frac14;' => "\xC2\xBC", 'frac34' => "\xC2\xBE", 'frac34;' => "\xC2\xBE", 'frasl;' => "\xE2\x81\x84", 'Gamma;' => "\xCE\x93", 'gamma;' => "\xCE\xB3", 'ge;' => "\xE2\x89\xA5", 'GT' => "\x3E", 'gt' => "\x3E", 'GT;' => "\x3E", 'gt;' => "\x3E", 'hArr;' => "\xE2\x87\x94", 'harr;' => "\xE2\x86\x94", 'hearts;' => "\xE2\x99\xA5", 'hellip;' => "\xE2\x80\xA6", 'Iacute' => "\xC3\x8D", 'iacute' => "\xC3\xAD", 'Iacute;' => "\xC3\x8D", 'iacute;' => "\xC3\xAD", 'Icirc' => "\xC3\x8E", 'icirc' => "\xC3\xAE", 'Icirc;' => "\xC3\x8E", 'icirc;' => "\xC3\xAE", 'iexcl' => "\xC2\xA1", 'iexcl;' => "\xC2\xA1", 'Igrave' => "\xC3\x8C", 'igrave' => "\xC3\xAC", 'Igrave;' => "\xC3\x8C", 'igrave;' => "\xC3\xAC", 'image;' => "\xE2\x84\x91", 'infin;' => "\xE2\x88\x9E", 'int;' => "\xE2\x88\xAB", 'Iota;' => "\xCE\x99", 'iota;' => "\xCE\xB9", 'iquest' => "\xC2\xBF", 'iquest;' => "\xC2\xBF", 'isin;' => "\xE2\x88\x88", 'Iuml' => "\xC3\x8F", 'iuml' => "\xC3\xAF", 'Iuml;' => "\xC3\x8F", 'iuml;' => "\xC3\xAF", 'Kappa;' => "\xCE\x9A", 'kappa;' => "\xCE\xBA", 'Lambda;' => "\xCE\x9B", 'lambda;' => "\xCE\xBB", 'lang;' => "\xE3\x80\x88", 'laquo' => "\xC2\xAB", 'laquo;' => "\xC2\xAB", 'lArr;' => "\xE2\x87\x90", 'larr;' => "\xE2\x86\x90", 'lceil;' => "\xE2\x8C\x88", 'ldquo;' => "\xE2\x80\x9C", 'le;' => "\xE2\x89\xA4", 'lfloor;' => "\xE2\x8C\x8A", 'lowast;' => "\xE2\x88\x97", 'loz;' => "\xE2\x97\x8A", 'lrm;' => "\xE2\x80\x8E", 'lsaquo;' => "\xE2\x80\xB9", 'lsquo;' => "\xE2\x80\x98", 'LT' => "\x3C", 'lt' => "\x3C", 'LT;' => "\x3C", 'lt;' => "\x3C", 'macr' => "\xC2\xAF", 'macr;' => "\xC2\xAF", 'mdash;' => "\xE2\x80\x94", 'micro' => "\xC2\xB5", 'micro;' => "\xC2\xB5", 'middot' => "\xC2\xB7", 'middot;' => "\xC2\xB7", 'minus;' => "\xE2\x88\x92", 'Mu;' => "\xCE\x9C", 'mu;' => "\xCE\xBC", 'nabla;' => "\xE2\x88\x87", 'nbsp' => "\xC2\xA0", 'nbsp;' => "\xC2\xA0", 'ndash;' => "\xE2\x80\x93", 'ne;' => "\xE2\x89\xA0", 'ni;' => "\xE2\x88\x8B", 'not' => "\xC2\xAC", 'not;' => "\xC2\xAC", 'notin;' => "\xE2\x88\x89", 'nsub;' => "\xE2\x8A\x84", 'Ntilde' => "\xC3\x91", 'ntilde' => "\xC3\xB1", 'Ntilde;' => "\xC3\x91", 'ntilde;' => "\xC3\xB1", 'Nu;' => "\xCE\x9D", 'nu;' => "\xCE\xBD", 'Oacute' => "\xC3\x93", 'oacute' => "\xC3\xB3", 'Oacute;' => "\xC3\x93", 'oacute;' => "\xC3\xB3", 'Ocirc' => "\xC3\x94", 'ocirc' => "\xC3\xB4", 'Ocirc;' => "\xC3\x94", 'ocirc;' => "\xC3\xB4", 'OElig;' => "\xC5\x92", 'oelig;' => "\xC5\x93", 'Ograve' => "\xC3\x92", 'ograve' => "\xC3\xB2", 'Ograve;' => "\xC3\x92", 'ograve;' => "\xC3\xB2", 'oline;' => "\xE2\x80\xBE", 'Omega;' => "\xCE\xA9", 'omega;' => "\xCF\x89", 'Omicron;' => "\xCE\x9F", 'omicron;' => "\xCE\xBF", 'oplus;' => "\xE2\x8A\x95", 'or;' => "\xE2\x88\xA8", 'ordf' => "\xC2\xAA", 'ordf;' => "\xC2\xAA", 'ordm' => "\xC2\xBA", 'ordm;' => "\xC2\xBA", 'Oslash' => "\xC3\x98", 'oslash' => "\xC3\xB8", 'Oslash;' => "\xC3\x98", 'oslash;' => "\xC3\xB8", 'Otilde' => "\xC3\x95", 'otilde' => "\xC3\xB5", 'Otilde;' => "\xC3\x95", 'otilde;' => "\xC3\xB5", 'otimes;' => "\xE2\x8A\x97", 'Ouml' => "\xC3\x96", 'ouml' => "\xC3\xB6", 'Ouml;' => "\xC3\x96", 'ouml;' => "\xC3\xB6", 'para' => "\xC2\xB6", 'para;' => "\xC2\xB6", 'part;' => "\xE2\x88\x82", 'permil;' => "\xE2\x80\xB0", 'perp;' => "\xE2\x8A\xA5", 'Phi;' => "\xCE\xA6", 'phi;' => "\xCF\x86", 'Pi;' => "\xCE\xA0", 'pi;' => "\xCF\x80", 'piv;' => "\xCF\x96", 'plusmn' => "\xC2\xB1", 'plusmn;' => "\xC2\xB1", 'pound' => "\xC2\xA3", 'pound;' => "\xC2\xA3", 'Prime;' => "\xE2\x80\xB3", 'prime;' => "\xE2\x80\xB2", 'prod;' => "\xE2\x88\x8F", 'prop;' => "\xE2\x88\x9D", 'Psi;' => "\xCE\xA8", 'psi;' => "\xCF\x88", 'QUOT' => "\x22", 'quot' => "\x22", 'QUOT;' => "\x22", 'quot;' => "\x22", 'radic;' => "\xE2\x88\x9A", 'rang;' => "\xE3\x80\x89", 'raquo' => "\xC2\xBB", 'raquo;' => "\xC2\xBB", 'rArr;' => "\xE2\x87\x92", 'rarr;' => "\xE2\x86\x92", 'rceil;' => "\xE2\x8C\x89", 'rdquo;' => "\xE2\x80\x9D", 'real;' => "\xE2\x84\x9C", 'REG' => "\xC2\xAE", 'reg' => "\xC2\xAE", 'REG;' => "\xC2\xAE", 'reg;' => "\xC2\xAE", 'rfloor;' => "\xE2\x8C\x8B", 'Rho;' => "\xCE\xA1", 'rho;' => "\xCF\x81", 'rlm;' => "\xE2\x80\x8F", 'rsaquo;' => "\xE2\x80\xBA", 'rsquo;' => "\xE2\x80\x99", 'sbquo;' => "\xE2\x80\x9A", 'Scaron;' => "\xC5\xA0", 'scaron;' => "\xC5\xA1", 'sdot;' => "\xE2\x8B\x85", 'sect' => "\xC2\xA7", 'sect;' => "\xC2\xA7", 'shy' => "\xC2\xAD", 'shy;' => "\xC2\xAD", 'Sigma;' => "\xCE\xA3", 'sigma;' => "\xCF\x83", 'sigmaf;' => "\xCF\x82", 'sim;' => "\xE2\x88\xBC", 'spades;' => "\xE2\x99\xA0", 'sub;' => "\xE2\x8A\x82", 'sube;' => "\xE2\x8A\x86", 'sum;' => "\xE2\x88\x91", 'sup;' => "\xE2\x8A\x83", 'sup1' => "\xC2\xB9", 'sup1;' => "\xC2\xB9", 'sup2' => "\xC2\xB2", 'sup2;' => "\xC2\xB2", 'sup3' => "\xC2\xB3", 'sup3;' => "\xC2\xB3", 'supe;' => "\xE2\x8A\x87", 'szlig' => "\xC3\x9F", 'szlig;' => "\xC3\x9F", 'Tau;' => "\xCE\xA4", 'tau;' => "\xCF\x84", 'there4;' => "\xE2\x88\xB4", 'Theta;' => "\xCE\x98", 'theta;' => "\xCE\xB8", 'thetasym;' => "\xCF\x91", 'thinsp;' => "\xE2\x80\x89", 'THORN' => "\xC3\x9E", 'thorn' => "\xC3\xBE", 'THORN;' => "\xC3\x9E", 'thorn;' => "\xC3\xBE", 'tilde;' => "\xCB\x9C", 'times' => "\xC3\x97", 'times;' => "\xC3\x97", 'TRADE;' => "\xE2\x84\xA2", 'trade;' => "\xE2\x84\xA2", 'Uacute' => "\xC3\x9A", 'uacute' => "\xC3\xBA", 'Uacute;' => "\xC3\x9A", 'uacute;' => "\xC3\xBA", 'uArr;' => "\xE2\x87\x91", 'uarr;' => "\xE2\x86\x91", 'Ucirc' => "\xC3\x9B", 'ucirc' => "\xC3\xBB", 'Ucirc;' => "\xC3\x9B", 'ucirc;' => "\xC3\xBB", 'Ugrave' => "\xC3\x99", 'ugrave' => "\xC3\xB9", 'Ugrave;' => "\xC3\x99", 'ugrave;' => "\xC3\xB9", 'uml' => "\xC2\xA8", 'uml;' => "\xC2\xA8", 'upsih;' => "\xCF\x92", 'Upsilon;' => "\xCE\xA5", 'upsilon;' => "\xCF\x85", 'Uuml' => "\xC3\x9C", 'uuml' => "\xC3\xBC", 'Uuml;' => "\xC3\x9C", 'uuml;' => "\xC3\xBC", 'weierp;' => "\xE2\x84\x98", 'Xi;' => "\xCE\x9E", 'xi;' => "\xCE\xBE", 'Yacute' => "\xC3\x9D", 'yacute' => "\xC3\xBD", 'Yacute;' => "\xC3\x9D", 'yacute;' => "\xC3\xBD", 'yen' => "\xC2\xA5", 'yen;' => "\xC2\xA5", 'yuml' => "\xC3\xBF", 'Yuml;' => "\xC5\xB8", 'yuml;' => "\xC3\xBF", 'Zeta;' => "\xCE\x96", 'zeta;' => "\xCE\xB6", 'zwj;' => "\xE2\x80\x8D", 'zwnj;' => "\xE2\x80\x8C");

				for ($i = 0, $match = null; $i < 9 && $this->consume() !== false; $i++)
				{
					$consumed = substr($this->consumed, 1);
					if (isset($entities[$consumed]))
					{
						$match = $consumed;
					}
				}

				if ($match !== null)
				{
 					$this->data = substr_replace($this->data, $entities[$match], $this->position - strlen($consumed) - 1, strlen($match) + 1);
					$this->position += strlen($entities[$match]) - strlen($consumed) - 1;
				}
				break;
		}
	}
}