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<?php
//
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Bernd Römer <berndr@bonn.edu> |
// | Sebastian Bergmann <sb@sebastian-bergmann.de> |
// | Christian Kühn <ck@chkuehn.de> (escape xml entities) |
// +----------------------------------------------------------------------+
//
// $Id: Node.php,v 1.8 2002/05/17 12:17:18 cox Exp $
//
/**
* PEAR::XML_Tree_Node
*
* @author Bernd Römer <berndr@bonn.edu>
* @package XML_Tree
* @version 1.0 16-Aug-2001
*/
class XML_Tree_Node {
/**
* Attributes of this node
*
* @var array
*/
var $attributes;
/**
* Children of this node
*
* @var array
*/
var $children;
/**
* Content
*
* @var string
*/
var $content;
/**
* Name
*
* @var string
*/
var $name;
/**
* Constructor
*
* @param string name
* @param string content
* @param array attributes
*/
function XML_Tree_Node($name, $content = '', $attributes = array()) {
$this->attributes = $attributes;
$this->children = array();
$this->set_content($content);
$this->name = $name;
}
/**
* Adds a child node to this node.
*
* @param mixed child
* @param string content
* @param array attributes
* @return object reference to new child node
*/
function &addChild($child, $content = '', $attributes = array()) {
$index = sizeof($this->children);
if (is_object($child)) {
if (strtolower(get_class($child)) == 'xml_tree_node') {
$this->children[$index] = $child;
}
if (strtolower(get_class($child)) == 'xml_tree' && isset($child->root)) {
$this->children[$index] = $child->root->get_element();
}
} else {
$this->children[$index] = new XML_Tree_Node($child, $content, $attributes);
}
return $this->children[$index];
}
/**
* @deprecated
*/
function &add_child($child, $content = '', $attributes = array()) {
return $this->addChild($child, $content, $attributes);
}
/**
* clone node and all its children (recursive)
*
* @return object reference to the clone-node
*/
function &clone() {
$clone=new XML_Tree_Node($this->name,$this->content,$this->attributes);
$max_child=count($this->children);
for($i=0;$i<$max_child;$i++) {
$clone->children[]=$this->children[$i]->clone();
}
/* for future use....
// clone all other vars
$temp=get_object_vars($this);
foreach($temp as $varname => $value)
if (!in_array($varname,array('name','content','attributes','children')))
$clone->$varname=$value;
*/
return($clone);
}
/**
* inserts child ($child) to a specified child-position ($pos)
*
* @return inserted node
*/
function &insertChild($path,$pos,&$child, $content = '', $attributes = array()) {
// direct insert of objects useing array_splice() faild :(
array_splice($this->children,$pos,0,'dummy');
if (is_object($child)) { // child offered is not instanziated
// insert a single node
if (strtolower(get_class($child)) == 'xml_tree_node') {
$this->children[$pos]=&$child;
}
// insert a tree i.e insert root-element
if (strtolower(get_class($child)) == 'xml_tree' && isset($child->root)) {
$this->children[$pos]=$child->root->get_element();
}
} else { // child offered is not instanziated
$this->children[$pos]=new XML_Tree_Node($child, $content, $attributes);
}
return($this);
}
/**
* @deprecated
*/
function &insert_child($path,$pos,&$child, $content = '', $attributes = array()) {
return $this->insertChild($path,$pos,$child, $content, $attributes);
}
/**
* removes child ($pos)
*
* @param integer pos position of child in children-list
*
* @return removed node
*/
function &removeChild($pos) {
// array_splice() instead of a simple unset() to maintain index-integrity
return(array_splice($this->children,$pos,1));
}
/**
* @deprecated
*/
function &remove_child($pos) {
return $this->removeChild($pos);
}
/**
* Returns text representation of this node.
*
* @return string xml
*/
function &get()
{
static $deep = -1;
static $do_ident = true;
$deep++;
if ($this->name !== null) {
$ident = str_repeat(' ', $deep);
if ($do_ident) {
$out = $ident . '<' . $this->name;
} else {
$out = '<' . $this->name;
}
foreach ($this->attributes as $name => $value) {
$out .= ' ' . $name . '="' . $value . '"';
}
$out .= '>' . $this->content;
if (sizeof($this->children) > 0) {
$out .= "\n";
foreach ($this->children as $child) {
$out .= $child->get();
}
} else {
$ident = '';
}
if ($do_ident) {
$out .= $ident . '</' . $this->name . ">\n";
} else {
$out .= '</' . $this->name . '>';
}
$do_ident = true;
} else {
$out = $this->content;
$do_ident = false;
}
$deep--;
return $out;
}
/**
* Gets an attribute by its name.
*
* @param string name
* @return string attribute
*/
function getAttribute($name) {
return $this->attributes[strtolower($name)];
}
/**
* @deprecated
*/
function get_attribute($name) {
return $this->getAttribute($name);
}
/**
* Gets an element by its 'path'.
*
* @param string path
* @return object element
*/
function &getElement($path) {
if (sizeof($path) == 0) {
return $this;
}
$next = array_shift($path);
return $this->children[$next]->get_element($path);
}
/**
* @deprecated
*/
function &get_element($path) {
return $this->getElement($path);
}
/**
* Sets an attribute.
*
* @param string name
* @param string value
*/
function setAttribute($name, $value = '') {
$this->attributes[strtolower($name)] = $value;
}
/**
* @deprecated
*/
function set_attribute($name, $value = '') {
return $this->setAttribute($name, $value);
}
/**
* Unsets an attribute.
*
* @param string name
*/
function unsetAttribute($name) {
unset($this->attributes[strtolower($name)]);
}
/**
* @deprecated
*/
function unset_attribute($name) {
return $this->unsetAttribute($name);
}
/**
*
*
*/
function setContent(&$content)
{
$this->content = $this->_xml_entities($content);
}
function set_content(&$content)
{
return $this->setContent($content);
}
/**
* Escape XML entities.
*
* @param string xml
* @return string xml
* @access private
*/
function _xml_entities($xml) {
$xml = str_replace(array('ü', 'Ü', 'ö',
'Ö', 'ä', 'Ä',
'ß'
),
array('ü', 'Ü', 'ö',
'Ö', 'ä', 'Ä',
'ß'
),
$xml
);
$xml = preg_replace(array("/\&([a-z\d\#]+)\;/i",
"/\&/",
"/\#\|\|([a-z\d\#]+)\|\|\#/i",
"/([^a-zA-Z\d\s\<\>\&\;\.\:\=\"\-\/\%\?\!\'\(\)\[\]\{\}\$\#\+\,\@_])/e"
),
array("#||\\1||#",
"&",
"&\\1;",
"'&#'.ord('\\1').';'"
),
$xml
);
return $xml;
}
/**
* Print text representation of XML tree.
*/
function dump() {
echo $this->get();
}
}
?>
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