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| Current File : //compat/linux/proc/68247/cwd/usr/local/share/pear/XML/Tree.php |
<?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> |
// | Tomas V.V.Cox <cox@idecnet.com> (tree mapping from xml file)|
// +----------------------------------------------------------------------+
//
// $Id: Tree.php,v 1.19 2002/05/17 12:15:23 cox Exp $
//
require_once 'XML/Parser.php';
require_once 'XML/Tree/Node.php';
/**
* PEAR::XML_Tree
*
* Purpose
*
* Allows for the building of XML data structures
* using a tree representation, without the need
* for an extension like DOMXML.
*
* Example
*
* $tree = new XML_Tree;
* $root =& $tree->addRoot('root');
* $foo =& $root->addChild('foo');
*
* header('Content-Type: text/xml');
* $tree->dump();
*
* @author Bernd Römer <berndr@bonn.edu>
* @package XML
* @version $Version$ - 1.0
*/
class XML_Tree extends XML_Parser
{
/**
* File Handle
*
* @var ressource
*/
var $file = NULL;
/**
* Filename
*
* @var string
*/
var $filename = '';
/**
* Namespace
*
* @var array
*/
var $namespace = array();
/**
* Root
*
* @var object XML_Tree_Node
*/
var $root = NULL;
/**
* XML Version
*
* @var string
*/
var $version = '1.0';
/**
* Constructor
*
* @param string Filename
* @param string XML Version
*/
function XML_Tree($filename = '', $version = '1.0') {
$this->filename = $filename;
$this->version = $version;
}
/**
* Add root node.
*
* @param string $name name of root element
* @return object XML_Tree_Node reference to root node
*
* @access public
*/
function &addRoot($name, $content = '', $attributes = array()) {
$this->root = new XML_Tree_Node($name, $content, $attributes);
return $this->root;
}
/**
* @deprecated
*/
function &add_root($name, $content = '', $attributes = array()) {
return $this->addRoot($name, $content, $attributes);
}
/**
* inserts a child/tree (child) into tree ($path,$pos) and
* maintains namespace integrity
*
* @param array $path path to parent of child to remove
* @param integer $pos position of child to be inserted in its parents children-list
* @param mixed $child child-node (by XML_Tree,XML_Node or Name)
* @param string $content content (text) for new node
* @param array $attributes attribute-hash for new node
*
* @return object XML_Tree_Node inserted child (node)
* @access public
*/
function &insertChild($path,$pos,$child, $content = '', $attributes = array()) {
// update namespace to maintain namespace integrity
$count=count($path);
foreach($this->namespace as $key => $val) {
if ((array_slice($val,0,$count)==$path) && ($val[$count]>=$pos))
$this->namespace[$key][$count]++;
}
$parent=&$this->get_node_by_path($path);
return($parent->insert_child($pos,$child,$content,$attributes));
}
/**
* @deprecated
*/
function &insert_child($path,$pos,$child, $content = '', $attributes = array()) {
return $this->insertChild($path, $child, $content, $attributes);
}
/*
* removes a child ($path,$pos) from tree ($path,$pos) and
* maintains namespace integrity
*
* @param array $path path to parent of child to remove
* @param integer $pos position of child in parents children-list
*
* @return object XML_Tree_Node parent whichs child was removed
* @access public
*/
function &removeChild($path,$pos) {
// update namespace to maintain namespace integrity
$count=count($path);
foreach($this->namespace as $key => $val) {
if (array_slice($val,0,$count)==$path) {
if ($val[$count]==$pos) { unset($this->namespace[$key]); break; }
if ($val[$count]>$pos)
$this->namespace[$key][$count]--;
}
}
$parent=&$this->get_node_by_path($path);
return($parent->remove_child($pos));
}
/**
* @deprecated
*/
function &remove_child($path, $pos) {
return $this->removeChild($path, $pos);
}
/*
* Maps a xml file to a objects tree
*
* @return mixed The objects tree (XML_tree or an Pear error)
* @access public
*/
function &getTreeFromFile ()
{
$this->folding = false;
$this->XML_Parser(null, 'event');
$err = $this->setInputFile($this->filename);
if (PEAR::isError($err)) {
return $err;
}
$this->cdata = null;
$err = $this->parse();
if (PEAR::isError($err)) {
return $err;
}
return $this->root;
}
function getTreeFromString($str)
{
$this->folding = false;
$this->XML_Parser(null, 'event');
$this->cdata = null;
$err = $this->parseString($str);
if (PEAR::isError($err)) {
return $err;
}
return $this->root;
}
/**
* Handler for the xml-data
*
* @param mixed $xp ignored
* @param string $elem name of the element
* @param array $attribs attributes for the generated node
*
* @access private
*/
function startHandler($xp, $elem, &$attribs)
{
// root elem
if (!isset($this->i)) {
$this->obj1 =& $this->add_root($elem, null, $attribs);
$this->i = 2;
} else {
// mixed contents
if (!empty($this->cdata)) {
$parent_id = 'obj' . ($this->i - 1);
$parent =& $this->$parent_id;
$parent->children[] = &new XML_Tree_Node(null, $this->cdata);
}
$obj_id = 'obj' . $this->i++;
$this->$obj_id = &new XML_Tree_Node($elem, null, $attribs);
}
$this->cdata = null;
return null;
}
/**
* Handler for the xml-data
*
* @param mixed $xp ignored
* @param string $elem name of the element
*
* @access private
*/
function endHandler($xp, $elem)
{
$this->i--;
if ($this->i > 1) {
$obj_id = 'obj' . $this->i;
// recover the node created in StartHandler
$node =& $this->$obj_id;
// mixed contents
if (count($node->children) > 0) {
if (trim($this->cdata)) {
$node->children[] = &new XML_Tree_Node(null, $this->cdata);
}
} else {
$node->set_content($this->cdata);
}
$parent_id = 'obj' . ($this->i - 1);
$parent =& $this->$parent_id;
// attach the node to its parent node children array
$parent->children[] = $node;
}
$this->cdata = null;
return null;
}
/*
* The xml character data handler
*
* @param mixed $xp ignored
* @param string $data PCDATA between tags
*
* @access private
*/
function cdataHandler($xp, $data)
{
if (trim($data)) {
$this->cdata .= $data;
}
}
/**
* Get a copy of this tree.
*
* @return object XML_Tree
* @access public
*/
function clone() {
$clone=new XML_Tree($this->filename,$this->version);
$clone->root=$this->root->clone();
// clone all other vars
$temp=get_object_vars($this);
foreach($temp as $varname => $value)
if (!in_array($varname,array('filename','version','root')))
$clone->$varname=$value;
return($clone);
}
/**
* Print text representation of XML tree.
*
* @access public
*/
function dump() {
echo $this->get();
}
/**
* Get text representation of XML tree.
*
* @return string XML
* @access public
*/
function &get() {
$out = '<?xml version="' . $this->version . "\"?>\n";
$out .= $this->root->get();
return $out;
}
/**
* Get current namespace.
*
* @param string $name namespace
* @return string
*
* @access public
*/
function &getName($name) {
return $this->root->get_element($this->namespace[$name]);
}
/**
* @deprecated
*/
function &get_name($name) {
return $this->getName($name);
}
/**
* Register a namespace.
*
* @param string $name namespace
* @param string $path path
*
* @access public
*/
function registerName($name, $path) {
$this->namespace[$name] = $path;
}
/**
* @deprecated
*/
function register_name($name, $path) {
return $this->registerName($name, $path);
}
}
?>