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Created: Sun, Feb 1, 11:28 PM

xml_helper.php
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	<?php

	class kXMLHelper extends kHelper {
	var $RootElement = null;

	/**
	* Enter description here...
	*
	* @var kXMLNode
	*/
	var $CurrentElement = null;

	function &Parse($xml = null)
	{
	$xml_parser = xml_parser_create();
	xml_set_element_handler( $xml_parser, Array(&$this, 'startElement'), Array(&$this, 'endElement') );
	xml_set_character_data_handler( $xml_parser, Array(&$this, 'characterData') );
	if (!xml_parse($xml_parser, $xml, 1)) {
	trigger_error(sprintf('XML error: %s at line %d'),
	xml_error_string(xml_get_error_code($xml_parser)),
	xml_get_current_line_number($xml_parser), E_USER_WARNING);
	}
	xml_parser_free($xml_parser);
	return $this->RootElement;
	}

	function startElement(&$Parser, &$Elem, $Attrs)
	{
	$parent =& $this->CurrentElement;
	$this->CurrentElement =& new kXMLNode($Elem, $Attrs);
	if (is_null($this->RootElement)) {
	$this->RootElement =& $this->CurrentElement;
	}
	if (!is_null($parent)) {
	$parent->AddChild($this->CurrentElement);
	}
	}

	function characterData($Parser, $Line)
	{
	$this->CurrentElement->AppendData($Line);
	}

	function endElement($Parser, $Elem)
	{
	if ($this->CurrentElement->Parent != null) {
	$this->CurrentElement =& $this->CurrentElement->Parent;
	}
	}

	function Clear()
	{
	$this->RootElement = null;
	$this->CurrentElement = null;
	}
	}

	class kXMLNode {
	var $Name = null;
	var $Attributes = array();
	var $Children = array();
	var $Data = null;
	var $Parent = null;

	function kXMLNode($name, $attrs = array())
	{
	$this->Name = $name;
	$this->Attributes = $attrs;
	}

	function SetParent(&$elem)
	{
	$this->Parent =& $elem;
	}

	function AddChild(&$a_child)
	{
	$this->Children[] =& $a_child;
	$a_child->SetParent($this);
	}

	function AppendData($data)
	{
	$this->Data .= $data;
	}

	function &GetChild($path)
	{
	$entries = explode('/', strtoupper($path));
	$cur = array_shift($entries);
	if ($cur == $this->Name) $cur = array_shift($entries);
	if (!$cur) return $this;
	if (!isset($this->Children[$cur])) return false;
	$left = implode('/', $entries);
	if (!$left) return $this->Children[$cur];
	return $this->Children[$cur]->GetChild($left);
	}

	function GetChildValue($path)
	{
	$child =& $this->GetChild($path);
	if ($child !== false) {
	return $child->Data;
	}
	}

	function &FindChild($name)
	{
	$name = strtoupper($name);
	if ($this->Name == $name) return $this;
	// if (isset($this->Children[$name])) return $this->Children[$name];
	// $children = array_keys($this->Children);
	foreach ($this->Children as $elem)
	{
	$child =& $elem->FindChild($name);
	if ($child !== false)
	{
	return $child;
	}
	}
	return false;
	}

	function FindChildValue($name, $attr=null)
	{
	$child =& $this->FindChild($name);
	if ($child !== false) {
	if (isset($attr)) {
	return $child->Attributes[strtoupper($attr)];
	}
	return $child->Data;
	}
	}
	}

	?>

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