<?php
#$Id$
/*
* XML.inc.php
*
* Class to convert an XML file into an object
*
* Copyright (C) 2006 Oliver Strecke <oliver.strecke@browsertec.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
class XML{
var $_parser;
var $_xml_data;
var $_actual_tag;
//Constructor...
function xml($encoding="ISO-8859-1"){
$this->_parser=xml_parser_create($encoding);
$this->_xml_data="";
$this->_actual_tag=$this;
xml_set_object($this->_parser,$this);
xml_parser_set_option($this->_parser,XML_OPTION_CASE_FOLDING,false);
xml_set_element_handler($this->_parser,"tag_open","tag_close");
xml_set_character_data_handler($this->_parser,"tag_data");
xml_set_default_handler($this->_parser,"tag_data");
}
//get XML data from file...
function file_read($xml_file){
if(file_exists($xml_file)){
$this->_xml_data=implode("",file($xml_file));
return 1;
}else{
return 0;
}
}
//parse XML data...
function parse($xml_data=0){
if($xml_data)$this->_xml_data=$xml_data;
xml_parse($this->_parser,$this->_xml_data);
xml_parser_free($this->_parser);
return 1;
}
function tag_open($parser,$name,$attrs){
//create new tag...
#$actual_tag=&$this->_actual_tag;
$tag=new XML_TAG($this->_actual_tag);
$tag->_name=$name;
$tag->_param=$attrs;
if($name=="br" && isset($this->_actual_tag->_value))$this->_actual_tag->_value=$this->_actual_tag->_value."\n"; else $this->_actual_tag->_value="\n";
//add tag object to parent/actual tag object...
#if(is_object($this->_actual_tag)){
if(!is_a($this->_actual_tag,"XML")){
#if(is_object($this->_actual_tag->$name) || is_array($this->_actual_tag->$name)){
if(isset($this->_actual_tag->$name)){
//same child objects -> Array...
$last_index=$this->_actual_tag->new_child_array($tag,$name);
$this->_actual_tag=&$this->_actual_tag->{$name}[$last_index];
}else{
//add new child object to actual tag...
$this->_actual_tag->new_child($tag,$name);
$this->_actual_tag=&$this->_actual_tag->$name;
}
}else{
//copy first tag object in this object...
$this->$name=$tag;
$this->_actual_tag=&$this->{$name};
}
return 1;
}
function tag_data($parser,$string){
if(strlen(trim($string))>0){
if(isset($this->_actual_tag->_value))$this->_actual_tag->_value=$this->_actual_tag->_value.$string; else $this->_actual_tag->_value=$string;
}
return 1;
}
function tag_close($parser,$name){
$this->_actual_tag=&$this->_actual_tag->_parent;
return 1;
}
function file_write($xml_file){
$fp=fopen($xml_file,"w");
preg_match_all("/\<\?xml(.*)\?\>/",$this->_xml_data,$result_array);
if(is_array($result_array)){
foreach($result_array[1] as $header){
fputs($fp,"<?xml$header?>\n");
}
}
$this->tag_write($fp,$this);
fclose($fp);
return 1;
}
function tag_write($fp,$tag,$indent=0){
$return=0;
$tmp_array=get_object_vars($tag);
$indent_string="";
for($i=0;$i<$indent;$i++)$indent_string.=" ";
foreach($tmp_array as $tag_name=>$tag){
if(is_a($tag,"XML_TAG") && substr($tag_name,0,1)!="_"){
$return=1;
fputs($fp,"\n$indent_string<$tag_name");
foreach($tag->_param as $name=>$value){
fputs($fp," $name='".htmlentities($value)."'");
}
fputs($fp,">");
$result=$this->tag_write($fp,$tag,$indent+1);
if($result){
fputs($fp,"\n");
fputs($fp,"$indent_string</$tag_name>");
}else{
fputs($fp,htmlentities($tag->_value));
fputs($fp,"</$tag_name>");
}
}else if(is_array($tag) && substr($tag_name,0,1)!="_"){
$return=1;
foreach($tag as $i=>$tmp_tag){
fputs($fp,"\n$indent_string<$tag_name");
foreach($tmp_tag->_param as $name=>$value){
fputs($fp," $name='".htmlentities($value)."'");
}
fputs($fp,">");
$result=$this->tag_write($fp,$tmp_tag,$indent+1);
if($result){
fputs($fp,"\n");
fputs($fp,"$indent_string</$tag_name>");
}else{
fputs($fp,htmlentities($tmp_tag->_value));
fputs($fp,"</$tag_name>");
}
}
}
}
return $return;
}
//Debug...
function debug($exit=0){
echo "<pre>";
print_r($this);
echo "</pre>";
if($exit)exit;
}
}
class XML_TAG{
var $_parent;
var $_name;
var $_value;
var $_param;
//Constructor...
function xml_tag(&$parent){
$this->_parent=&$parent;
$this->_name="";
$this->_value=false;
$this->_param=Array();
return 1;
}
//simply add new child to this object...
function new_child($child,$child_name){
if(isset($this->$child_name)){
$this->new_child_array($child,$child_name);
}else{
$this->$child_name=&$child;
}
}
//add child array for more same childs to this object...
function new_child_array($child,$child_name){
//create array and set old child object to the first array element...
if(is_object($this->$child_name)){
$tmp_obj=$this->$child_name;
$this->$child_name=Array();
$this->new_child_array($tmp_obj,$child_name);
}
//push child reference into child array...
$this->{$child_name}[]=&$child;
$last_index=count($this->$child_name)-1;
return $last_index;
}
//Debug...
function debug(){
echo "<pre>";
print_r($this);
echo "</pre>";
}
}
?>
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