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2005 Aurelien 1 
<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
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/**
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 * CodeIgniter
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 *
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 * An open source application development framework for PHP 4.3.2 or newer
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 *
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 * @package		CodeIgniter
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 * @author		ExpressionEngine Dev Team
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 * @copyright	Copyright (c) 2008, EllisLab, Inc.
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 * @license		http://codeigniter.com/user_guide/license.html
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 * @link		http://codeigniter.com
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 * @since		Version 1.0
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 * @filesource
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 */
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// ------------------------------------------------------------------------
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/**
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 * CodeIgniter Path Helpers
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 *
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 * @package		CodeIgniter
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 * @subpackage	Helpers
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 * @category	Helpers
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 * @author		ExpressionEngine Dev Team
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 * @link		http://codeigniter.com/user_guide/helpers/xml_helper.html
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 */
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// ------------------------------------------------------------------------
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/**
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 * Set Realpath
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 *
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 * @access	public
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 * @param	string
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 * @param	bool	checks to see if the path exists
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 * @return	string
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 */
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if ( ! function_exists('set_realpath'))
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{
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	function set_realpath($path, $check_existance = FALSE)
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	{
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		// Security check to make sure the path is NOT a URL.  No remote file inclusion!
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		if (preg_match("#^(http:\/\/|https:\/\/|www\.|ftp|[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})#i", $path))
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		{
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			show_error('The path you submitted must be a local server path, not a URL');
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		}
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		// Resolve the path
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		if (function_exists('realpath') AND @realpath($path) !== FALSE)
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		{
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			$path = realpath($path).'/';
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		}
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		// Add a trailing slash
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		$path = preg_replace("#([^/])/*$#", "\\1/", $path);
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		// Make sure the path exists
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		if ($check_existance == TRUE)
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		{
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			if ( ! is_dir($path))
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			{
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				show_error('Not a valid path: '.$path);
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			}
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		}
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		return $path;
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	}
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}
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/* End of file path_helper.php */
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/* Location: ./system/helpers/path_helper.php */