<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package        CodeIgniter
 * @author        ExpressionEngine Dev Team
 * @copyright    Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license        http://codeigniter.com/user_guide/license.html
 * @link        http://codeigniter.com
 * @since        Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * CodeIgniter XML Helpers
 *
 * @package        CodeIgniter
 * @subpackage    Helpers
 * @category    Helpers
 * @author        ExpressionEngine Dev Team
 * @link        http://codeigniter.com/user_guide/helpers/xml_helper.html
 */

// ------------------------------------------------------------------------

/**
 * Convert Reserved XML characters to Entities
 *
 * @access    public
 * @param    string
 * @return    string
 */
if ( ! function_exists('xml_convert'))
{
    function xml_convert($str, $protect_all = FALSE)
    {
        $temp = '__TEMP_AMPERSANDS__';

        // Replace entities to temporary markers so that
        // ampersands won't get messed up
        $str = preg_replace("/&#(\d+);/", "$temp\\1;", $str);

        if ($protect_all === TRUE)
        {
            $str = preg_replace("/&(\w+);/",  "$temp\\1;", $str);
        }

        $str = str_replace(array("&","<",">","\"", "'", "-"),
                            array("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;"),
                            $str);

        // Decode the temp markers back to entities
        $str = preg_replace("/$temp(\d+);/","&#\\1;",$str);

        if ($protect_all === TRUE)
        {
            $str = preg_replace("/$temp(\w+);/","&\\1;", $str);
        }

        return $str;
    }
}

// ------------------------------------------------------------------------

/* End of file xml_helper.php */
/* Location: ./system/helpers/xml_helper.php */