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<?php
/**
* DOMIT node maps are structures for storing and accessing collections of DOMIT_Nodes.
* @package domit-xmlparser
* @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/domit/ DOMIT! Home Page
* DOMIT! is Free Software
**/
if (!defined('DOMIT_INCLUDE_PATH')) {
define('DOMIT_INCLUDE_PATH', (dirname(__FILE__) . "/"));
}
/**
* A DOM NodeList implementation
*
* @package domit-xmlparser
* @author John Heinstein <johnkarl@nbnet.nb.ca>
*/
class DOMIT_NodeList {
/** @var Array A container for the nodes in the list */
var $arNodeList = array();
/**
* Return the node at the specified index
* @param int The index of the requested node
* @return Object A reference to the requested node, or null
*/
function &item($index) {
if ($index < $this->getLength()) {
return $this->arNodeList[$index];
}
$null = null;
return $null;
} //item
/**
* Returns the number of nodes in the list
* @return int The number of nodes in the list
*/
function getLength() {
return count($this->arNodeList);
} //getLength
/**
* Appends a node to the list
* @return Object The appended node
*/
function &appendNode(&$node) {
$this->arNodeList[] =& $node;
return $node;
} //appendNode
/**
* Removes the specified node from the list
* @param Object A reference to the node to be removed
* @return Object A reference to the removed node
*/
function &removeNode(&$node) {
$total = $this->getLength();
$returnNode = null;
$found = false;
for ($i = 0; $i < $total; $i++) {
if (!$found) {
if ($node->uid == $this->arNodeList[$i]->uid) {
$found = true;
$returnNode=& $node;
}
}
if ($found) {
if ($i == ($total - 1)) {
unset($this->arNodeList[$i]);
}
else {
$this->arNodeList[$i] =& $this->arNodeList[($i + 1)];
}
}
}
return $returnNode;
} //$removeNode
/**
* Formats a string for presentation as HTML
* @param string The string to be formatted
* @param boolean True if the string is to be sent directly to output
* @return string The HTML formatted string
*/
function forHTML($str, $doPrint = false) {
require_once(DOMIT_INCLUDE_PATH . 'xml_domit_utilities.php');
return DOMIT_Utilities::forHTML($str, $doPrint);
} //forHTML
/**
* Generates an array representation of the node and its children
* @return Array A representation of the node and its children
*/
function toArray() {
return $this->arNodeList;
} //toArray
/**
* Copies a node and/or its children
* @param boolean True if all child nodes are also to be cloned
* @return Object A copy of the node and/or its children
*/
function &createClone($deep = false) {
$className = get_class($this);
$clone = new $className();
foreach ($this->arNodeList as $key => $value) {
$currNode =& $this->arNodeList[$key];
$clone->arNodeList[$key] =& $currNode->cloneNode($deep);
}
return $clone;
} //createClone
/**
* Generates a string representation of the node and its children
* @param boolean True if HTML readable output is desired
* @param boolean True if illegal xml characters in text nodes and attributes should be converted to entities
* @return string The string representation
*/
function toString($htmlSafe = false, $subEntities=false) {
$result = '';
foreach ($this->arNodeList as $key => $value) {
$currNode =& $this->arNodeList[$key];
$result .= $currNode->toString(false, $subEntities);
}
if ($htmlSafe) $result = $this->forHTML($result);
return $result;
} //toString
/**
* Generates a normalized (formatted for readability) representation of the node collection
* @param boolean True if HTML readable output is desired
* @param boolean True if illegal xml characters in text nodes and attributes should be converted to entities
* @return string The string representation
*/
function toNormalizedString($htmlSafe = false, $subEntities=false) {
$result = '';
foreach ($this->arNodeList as $key => $value) {
$currNode =& $this->arNodeList[$key];
$result .= $currNode->toNormalizedString(false, $subEntities);
}
if ($htmlSafe) $result = $this->forHTML($result);
return $result;
} //toNormalizedString
} //DOMIT_NodeList
/**
* A DOM NamedNodeMap implementation
*
* @package domit-xmlparser
* @author John Heinstein <johnkarl@nbnet.nb.ca>
*/
class DOMIT_NamedNodeMap {
/** @var Array A container for the nodes in the map */
var $arNodeMap = array();
/** @var Array A numerical index to the keys of the mapped nodes */
var $indexedNodeMap = array();
/** @var boolean True if the list has been modified and $indexedNodeMap needs reindexing */
var $isDirty = true;
/**
* Gets a node with the specifed name
* @param string The name of the node
* @return mixed A reference to the requested node, or null
*/
function &getNamedItem($name) {
if (isset($this->arNodeMap[$name])) {
return $this->arNodeMap[$name];
}
$null = null;
return $null;
} //getNamedItem
/**
* Reindexes the numerical index for the named node map
*/
function reindexNodeMap() {
$this->indexedNodeMap = array();
foreach ($this->arNodeMap as $key => $value) {
$this->indexedNodeMap[] = $key;
}
$this->isDirty = false;
} //reindexNodeMap
/**
* Assigns a node to the list
* @param Object A reference to the node to be assigned
* @return Object A reference to the assigned node
*/
function &setNamedItem(&$arg) {
$returnNode = null;
if (isset($this->arNodeMap[$arg->nodeName])) {
$returnNode =& $this->arNodeMap[$arg->nodeName];
}
else {
$this->isDirty = true;
}
$this->arNodeMap[$arg->nodeName] =& $arg;
return $returnNode;
} //setNamedItem
/**
* Removes a node from the list, by name
* @param string The name of the node to be removed
* @return mixed A reference to the removed node, or null
*/
function &removeNamedItem($name) {
$returnNode = null;
if (isset($this->arNodeMap[$name])) {
$returnNode =& $this->arNodeMap[$name];
unset($this->arNodeMap[$name]);
$this->isDirty = true;
}
return $returnNode;
} //removeNamedItem
/**
* Gets a node with the specifed name, taking into account namespaces
* @param string The namespaceURI of the node
* @param string The localName of the node
* @return mixed A reference to the requested node, or null
*/
function &getNamedItemNS($namespaceURI, $localName) {
$key = $this->getKeyNS($namespaceURI, $localName);
//check for explicit namespaces
if (isset($this->arNodeMap[$key])) {
return $this->arNodeMap[$key];
}
//check for implicit namespaces too
//URI will be on element, but not attribute
if (isset($this->arNodeMap[$localName])) {
//get element namespace
$firstAttr =& $this->item(1);
$ownerElem =& $firstAttr->ownerElement;
if ($namespaceURI == $ownerElem->namespaceURI) {
return $this->arNodeMap[$localName];
}
}
$null = null;
return $null;
} //getNamedItemNS
/**
* Assigns a node to the list, using its namespaceURI and localName
* @param Object A reference to the node to be assigned
* @return Object A reference to the assigned node
*/
function &setNamedItemNS(&$arg) {
$returnNode = null;
$key = $this->getKeyNS($arg->namespaceURI, $arg->localName);
if (isset($this->arNodeMap[$key])) {
$returnNode =& $this->arNodeMap[$key];
}
else {
$this->isDirty = true;
}
$this->arNodeMap[$key] =& $arg;
return $returnNode;
} //setNamedItemNS
/**
* Removes a node from the list, by name, by local name and namespace URI
* @param string The namespaceURI of the node to be removed
* @param string The localName of the node to be removed
* @return mixed A reference to the removed node, or null
*/
function &removeNamedItemNS($namespaceURI, $localName) {
$returnNode = null;
$key = $this->getKeyNS($namespaceURI, $localName);
if (isset($this->arNodeMap[$key])) {
$returnNode =& $this->arNodeMap[$key];
unset($this->arNodeMap[$key]);
$this->isDirty = true;
}
return $returnNode;
} //removeNamedItemNS
/**
* Returns the key of the NamedNodeMap, given the namespaceURI and localName
* @param string The namespaceURI of the node to be removed
* @param string The localName of the node to be removed
* @return string The key of the NamedNodeMap
*/
function getKeyNS($namespaceURI, $localName) {
if ($namespaceURI != '') {
return $namespaceURI . ":" . $localName;
}
return $localName;
} //getKeyNS
/**
* Return the node at the specified index
* @param int The index of the requested node
* @return mixed A reference to the requested node, or null
*/
function &item($index) {
if ($this->isDirty) $this->reindexNodeMap();
return $this->arNodeMap[$this->indexedNodeMap[$index]];
} //item
/**
* Returns the number of nodes in the map
* @return int The number of nodes in the map
*/
function getLength() {
return count($this->arNodeMap);
} //getLength
/**
* Formats a string for presentation as HTML
* @param string The string to be formatted
* @param boolean True if the string is to be sent directly to output
* @return string The HTML formatted string
*/
function forHTML($str, $doPrint = false) {
require_once(DOMIT_INCLUDE_PATH . 'xml_domit_utilities.php');
return DOMIT_Utilities::forHTML($str, $doPrint);
} //forHTML
/**
* Generates an array representation of the node and its children
* @return Array A representation of the node and its children
*/
function toArray() {
return $this->arNodeMap;
} //toArray
/**
* Copies a node and/or its children
* @param boolean True if all child nodes are also to be cloned
* @return Object A copy of the node and/or its children
*/
function &createClone($deep = false) {
$className = get_class($this);
$clone = new $className();
foreach ($this->arNodeMap as $key => $value) {
$currNode =& $this->arNodeMap[$key];
$clone->arNodeMap[$key] =& $currNode->cloneNode($deep);
}
return $clone;
} //createClone
/**
* Generates a string representation of the node and its children
* @param boolean True if HTML readable output is desired
* @param boolean True if illegal xml characters in text nodes and attributes should be converted to entities
* @return string The string representation
*/
function toString($htmlSafe = false, $subEntities=false) {
$result = '';
foreach ($this->arNodeMap as $key => $value) {
$currNode =& $this->arNodeMap[$key];
$result .= $currNode->toString(false, $subEntities);
}
if ($htmlSafe) $result = $this->forHTML($result);
return $result;
} //toString
/**
* Generates a normalized (formatted for readability) representation of the node collection
* @param boolean True if HTML readable output is desired
* @param boolean True if illegal xml characters in text nodes and attributes should be converted to entities
* @return string The string representation
*/
function toNormalizedString($htmlSafe = false, $subEntities=false) {
$result = '';
foreach ($this->arNodeMap as $key => $value) {
$currNode =& $this->arNodeMap[$key];
$result .= $currNode->toNormalizedString(false, $subEntities);
}
if ($htmlSafe) $result = $this->forHTML($result);
return $result;
} //toNormalizedString
} //DOMIT_NamedNodeMap
/**
* A NamedNodeMap with specialized funtionality for Attribute nodes
*
* @package domit-xmlparser
* @author John Heinstein <johnkarl@nbnet.nb.ca>
*/
class DOMIT_NamedNodeMap_Attr extends DOMIT_NamedNodeMap {
/**
* Generates an array representation of the node and its children
* @return Array A representation of the node and its children
*/
function toArray() {
$arReturn = array();
foreach ($this->arNodeMap as $key => $value) {
$arReturn[$key] = $this->arNodeMap[$key]->getValue();
}
return $arReturn;
} //toArray
/**
* Generates a string representation of the node and its children
* @param boolean True if HTML readable output is desired
* @param boolean True if illegal xml characters in text nodes and attributes should be converted to entities
* @return string The string representation
*/
function toString($htmlSafe = false, $subEntities=false) {
$result = '';
foreach ($this->arNodeMap as $key => $value) {
$currNode =& $this->arNodeMap[$key];
$result .= $currNode->toString(false, $subEntities);
}
if ($htmlSafe) $result = $this->forHTML($result);
return $result;
} //toString
} //DOMIT_NamedNodeMap_Attr
?>