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<?php
/**
* DOMIT! RSS Lite is a lightweight version of the DOMIT! Lite RSS parser
* @package domit-rss
* @subpackage domit-rss-lite
* @version 0.51
* @copyright (C) 2004 John Heinstein. All rights reserved
* @license http://www.gnu.org/copyleft/lesser.html LGPL License
* @author John Heinstein <johnkarl@nbnet.nb.ca>
* @link http://www.engageinteractive.com/domitrss/ DOMIT! RSS Home Page
* DOMIT! RSS is Free Software
**/
if (!defined('DOMIT_RSS_INCLUDE_PATH')) {
define('DOMIT_RSS_INCLUDE_PATH', (dirname(__FILE__) . DIRECTORY_SEPARATOR));
}
/** current version of DOMIT! RSS Lite */
define ('DOMIT_RSS_LITE_VERSION', '0.51');
require_once(DOMIT_RSS_INCLUDE_PATH . 'xml_domit_rss_shared.php');
/**
* The base DOMIT! RSS Lite document class
*
* @package domit-rss
* @subpackage domit-rss-lite
* @author John Heinstein <johnkarl@nbnet.nb.ca>
*/
class xml_domit_rss_document_lite extends xml_domit_rss_base_document {
/**
* Constructor
* @param string Path to the rss file
* @param string Directory for cache files
* @param int Expiration time for a cache file
*/
function xml_domit_rss_document_lite($url = '', $cacheDir = './', $cacheTime = 3600) {
$this->parser = 'DOMIT_RSS_LITE';
$this->xml_domit_rss_base_document($url, $cacheDir, $cacheTime);
} //xml_domit_rss_document_lite
/**
* Performs initialization of the RSS document
*/
function _init() {
$total = $this->node->documentElement->childCount;
$itemCounter = 0;
$channelCounter = 0;
for ($i = 0; $i < $total; $i++) {
$currNode =& $this->node->documentElement->childNodes[$i];
$tagName = strtolower($currNode->nodeName);
switch ($tagName) {
case DOMIT_RSS_ELEMENT_ITEM:
$this->domit_rss_items[$itemCounter] = new xml_domit_rss_item_lite($currNode);
$itemCounter++;
break;
case DOMIT_RSS_ELEMENT_CHANNEL:
$this->domit_rss_channels[$channelCounter] = new xml_domit_rss_channel_lite($currNode);
$channelCounter++;
break;
case DOMIT_RSS_ELEMENT_TITLE:
case DOMIT_RSS_ELEMENT_LINK:
case DOMIT_RSS_ELEMENT_DESCRIPTION:
$this->DOMIT_RSS_indexer[$tagName] = new xml_domit_rss_simpleelement($currNode);
break;
}
}
if ($itemCounter != 0) {
$this->DOMIT_RSS_indexer[DOMIT_RSS_ARRAY_ITEMS] =& $this->domit_rss_items;
}
if ($channelCounter != 0) {
$this->DOMIT_RSS_indexer[DOMIT_RSS_ARRAY_CHANNELS] =& $this->domit_rss_channels;
}
$this->handleChannelElementsEmbedded();
} //_init
/**
* Returns the current version of DOMIT! RSS
* @return Object The current version of DOMIT! RSS
*/
function getVersion() {
return DOMIT_RSS_LITE_VERSION;
} //getVersion
} //xml_domit_rss_document_lite
/**
* Represents an RSS channel
*
* @package domit-rss
* @subpackage domit-rss-lite
* @author John Heinstein <johnkarl@nbnet.nb.ca>
*/
class xml_domit_rss_channel_lite extends xml_domit_rss_elementindexer {
/** @var array A list of references to channel items */
var $domit_rss_items = array();
/**
* Constructor
* @param Object A DOM node containing channel data
*/
function xml_domit_rss_channel_lite(&$channel) {
$this->node =& $channel;
$this->_init();
} //xml_domit_rss_channel_lite
/**
* Performs initialization of the RSS channel element
*/
function _init() {
$total = $this->node->childCount;
$itemCounter = 0;
for ($i = 0; $i < $total; $i++) {
$currNode =& $this->node->childNodes[$i];
$tagName = strtolower($currNode->nodeName);
switch ($tagName) {
case DOMIT_RSS_ELEMENT_ITEM:
$this->domit_rss_items[$itemCounter] = new xml_domit_rss_item_lite($currNode);
$itemCounter++;
break;
case DOMIT_RSS_ELEMENT_TITLE:
case DOMIT_RSS_ELEMENT_LINK:
case DOMIT_RSS_ELEMENT_DESCRIPTION:
$this->DOMIT_RSS_indexer[$tagName] = new xml_domit_rss_simpleelement($currNode);
break;
}
}
if ($itemCounter != 0) {
$this->DOMIT_RSS_indexer[DOMIT_RSS_ARRAY_ITEMS] =& $this->domit_rss_items;
}
} //_init
/**
* Returns the title of the channel
* @return string The title of the channel, or an empty string
*/
function getTitle() {
return $this->getElementText(DOMIT_RSS_ELEMENT_TITLE);
} //getTitle
/**
* Returns the url of the channel
* @return string The url of the channel, or an empty string
*/
function getLink() {
return $this->getElementText(DOMIT_RSS_ELEMENT_LINK);
} //getLink
/**
* Returns a description of the channel
* @return string A description of the channel, or an empty string
*/
function getDescription() {
return $this->getElementText(DOMIT_RSS_ELEMENT_DESCRIPTION);
} //getDescription
/**
* Returns the number of items in the channel
* @return int The number of items in the channel
*/
function getItemCount() {
return count($this->domit_rss_items);
} //getItemCount
/**
* Returns a reference to the item at the specified index
* @param int The index of the requested item
* @return Object A reference to the item at the specified index
*/
function &getItem($index) {
return $this->domit_rss_items[$index];
} //getItem
} //xml_domit_rss_channel_lite
/**
* Represents an RSS item
*
* @package domit-rss
* @subpackage domit-rss-lite
* @author John Heinstein <johnkarl@nbnet.nb.ca>
*/
class xml_domit_rss_item_lite extends xml_domit_rss_elementindexer {
/**
* Constructor
* @param Object A DOM node containing item data
*/
function xml_domit_rss_item_lite(&$item) {
$this->node =& $item;
$this->_init();
} //xml_domit_rss_item_lite
/**
* Performs initialization of the item element
*/
function _init(){
$total = $this->node->childCount;
for($i = 0; $i < $total; $i++) {
$currNode =& $this->node->childNodes[$i];
$tagName = strtolower($currNode->nodeName);
switch ($tagName) {
case DOMIT_RSS_ELEMENT_TITLE:
case DOMIT_RSS_ELEMENT_LINK:
case DOMIT_RSS_ELEMENT_DESCRIPTION:
$this->DOMIT_RSS_indexer[$tagName] = new xml_domit_rss_simpleelement($currNode);
break;
}
}
} //init
/**
* Returns the title of the item
* @return string The title of the item, or an empty string
*/
function getTitle() {
return $this->getElementText(DOMIT_RSS_ELEMENT_TITLE);
} //getTitle
/**
* Returns the url of the item
* @return string The url of the item, or an empty string
*/
function getLink() {
return $this->getElementText(DOMIT_RSS_ELEMENT_LINK);
} //getLink
/**
* Returns a description of the item
* @return string A description of the item, or an empty string
*/
function getDescription() {
return $this->getElementText(DOMIT_RSS_ELEMENT_DESCRIPTION);
} //getDescription
} //xml_domit_rss_item_lite
?>