<?php
/**
 * XmlGenerator class
 * @author NHN (developers@xpressengine.com)
 * @package /classes/xml
 * @version 0.1
 */
class XmlGenerator{
	/**
	* object change to xml
	* @param object $xml
	* @return string
	*/
	function obj2xml($xml){
		$buff = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n";

		foreach($xml as $nodeName => $nodeItem){
			$buff .= $this->_makexml($nodeItem);
		}
		return $buff;
	}

	/**
	* object change to xml
	* @param object $node node in xml object
	* @return string
	*/
	function _makexml($node){
		$body = '';
		foreach($node as $key => $value){
			switch($key){
				case 'node_name' : break;
				case 'attrs' : {
									$attrs = '';
									if (isset($value)){
										foreach($value as $attrName=>$attrValue){
											$attrs .= sprintf(' %s="%s"', $attrName, htmlspecialchars($attrValue));
										}
									}
							   }break;
				case 'body' : $body = $value; break;
				default : {
							  if (is_array($value)){
								  foreach($value as $idx => $arrNode){
								  	$body .= $this->_makexml($arrNode);
								  }
							  }else if(is_object($value)){
								  $body = $this->_makexml($value);
							  }
						  }
			}
		}
		return sprintf('<%s%s>%s</%s>'."\n", $node->node_name, $attrs, $body, $node->node_name);
	}
}

?>