<?php
/*
 * FCKpackager - JavaScript Packager and Compressor - http://www.fckeditor.net
 * Copyright (C) 2003-2008 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 */

class FCKXmlDocument
{
	// Public properties.
	var $Children ;

	// Private properties.
	var $_XmlParser ;
	var $_CurrentNode ;

	function FCKXmlDocument()
	{
		$this->Children = array() ;
	}

	function LoadFile( $filePath )
	{
		$this->Children = array() ;
		$this->_CurrentNode = &$this ;

		return $this->LoadXml( file_get_contents( $filePath ) ) ;
	}

	function LoadXml( $xml )
	{
		// Create the XML Parser.
		$this->_XmlParser = xml_parser_create( '' ) ;

		// Setup the parser.
		xml_parser_set_option( $this->_XmlParser, XML_OPTION_SKIP_WHITE, 1 ) ;
		xml_set_object( $this->_XmlParser, $this ) ;
		xml_set_element_handler( $this->_XmlParser, '_ElementOpen', '_ElementClosed' ) ;

		xml_set_character_data_handler( $this->_XmlParser, '_ElementData' ) ;

		// Parse it.
		if( !xml_parse( $this->_XmlParser, $xml ) )
		{
		   ExitError( sprintf( "XML error: %s at line %d",
				xml_error_string(xml_get_error_code( $this->_XmlParser ) ),
				xml_get_current_line_number( $this->_XmlParser ) ) ) ;
		}

		// Release the parser.
		xml_parser_free( $this->_XmlParser ) ;

		unset( $this->_XmlParser ) ;
		unset( $this->_CurrentNode ) ;

		// For debug purposes:
		// SaveStringToFile( print_r( $this, TRUE ), 'parsed.txt' ) ;
		// print_r( $this ) ;
		// exit ;

		return TRUE ;
	}

	function _ElementOpen( $parser, $name, $attrs )
	{
		$newNode = (object)array(
			'Parent' => &$this->_CurrentNode,
			'Name' => $name,
			'Attributes' => $attrs,
			'Value' => '',
			'Children' => array() ) ;

		$this->_CurrentNode->Children[ $name ][] = &$newNode ;

		$this->_CurrentNode = &$newNode ;
	}

	function _ElementClosed( $parser, $name )
	{
		$this->_CurrentNode = &$this->_CurrentNode->Parent ;
	}

	function _ElementData( $parser, $data )
	{
		$this->_CurrentNode->Value .= $data ;
	}
}

?>