<?php
/*
* ============================================================================
*
* @name ExcelXMLArrayIterator.php
*
* @author Andrew A. Aculana
* @version 2.1
* @date 2006-07-03
*
* ============================================================================
*
* License: GNU Lesser General Public License (LGPL)
*
* Copyright (c) 2004 LINK2SUPPORT INC. All rights reserved.
*
* This file is part of the L2S Online Application Framework
*
* 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 2.1 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
*
* ============================================================================
*/
/**
* @package ExcelXMLArrayIterator
* @subpackage ExcelXMLParser
*/
/**
* A wrapper for array iteration
*
* @author Andrew Aculana <[email protected]>
* @copyright Copyright © 2006, Andrew Aculana
* @version 1.0
*
*/
class ExcelXMLArrayIterator{
/**
* @var Array(mixed) $Data - Data container to hold the value to iterate
* @var int $index index used in data iteration
* @var Array $keys - Data key Container
*/
var $Data;
var $index;
var $keys;
#-----------------------------------------------------------------------------#
/**
* class constructor - initialize attributes
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @param Array(mixed) - a reference to an array
* @return null
*/
function ExcelXMLArrayIterator(&$Data){
$this->Data =& $Data;
$this->index = 0;
$this->keys = array();
}
#-----------------------------------------------------------------------------#
/**
* get the index
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return int
*/
function getIndex(){
return $this->index;
}
#-----------------------------------------------------------------------------#
/**
* reset iterator index to base
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return null
*/
function reset(){
$this->index = 0;
}
#-----------------------------------------------------------------------------#
/**
* reinitialize current index
*
* @author Andrew A. Aculana
* @access Private
* @version 2.0
* @copyright 2006-07-03
* @return null
*/
function _reindex(){
$this->keys = array_keys($this->Data);
}
#-----------------------------------------------------------------------------#
/**
* get the current value pointed by the current index
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return long - pointer to an object
*/
function ¤t(){
$this->_reindex();
return @$this->Data[$this->keys[$this->index]];
}
#-----------------------------------------------------------------------------#
/**
* get the next value pointed by the current index
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return long - pointer to an object
*/
function &next(){
$this->_reindex();
if(++$this->index > count($this->keys)){
$this->index = count($this->keys)-1;
return NULL;
}else{
return $this->current();
}
}
#-----------------------------------------------------------------------------#
/**
* get the previous value
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return long - pointer to an object
*/
function &prev(){
$this->_reindex();
if(--$this->index < 0){
$this->index = 0;
return NULL;
}else{
return $this->current();
}
}
#-----------------------------------------------------------------------------#
/**
* get the top value
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return long - pointer to an object
*/
function &top(){
$this->_reindex();
$this->index = 0;
return $this->Data[$this->keys[$this->index]];
}
#-----------------------------------------------------------------------------#
/**
* get the last value
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return long - pointer to an object
*/
function &bottom(){
$this->_reindex();
$this->index = count($this->keys)-1;
return $this->Data[$this->keys[$this->index]];
}
#-----------------------------------------------------------------------------#
/**
* return the length of the iterator
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return int
*/
function length(){
return count($this->Data);
}
#-----------------------------------------------------------------------------#
/**
* append data to the iterator
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return null
*/
function append($Data){
array_push($this->Data,$Data);
}
#-----------------------------------------------------------------------------#
/**
* remove the last value in the iterator
*
* @author Andrew A. Aculana
* @access Public
* @version 2.0
* @copyright 2006-07-03
* @return null
*/
function pop(){
array_pop($this->Data,$Data);
}
#-----------------------------------------------------------------------------#
}
?>
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