system/helpers/url_helper.php - code-igniter-v3-giggi - Gitiles

 <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
  * Licensed under the Open Software License version 3.0
  *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
  * http://opensource.org/licenses/OSL-3.0
  * If you did not receive a copy of the license and are unable to obtain it
  * through the world wide web, please send an email to
  * licensing@ellislab.com so we can send you a copy immediately.
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
  * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
  */

 /**
  * CodeIgniter URL Helpers
  *
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/url_helper.html
  */

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

 if ( ! function_exists('site_url'))
 {
 	/**
 	 * Site URL
 	 *
 	 * Create a local URL based on your basepath. Segments can be passed via the
 	 * first parameter either as a string or an array.
 	 *
 	 * @param	string
 	 * @return	string
 	 */
 	function site_url($uri = '')
 	{
 		$CI =& get_instance();
 		return $CI->config->site_url($uri);
 	}
 }

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

 if ( ! function_exists('base_url'))
 {
 	/**
 	 * Base URL
 	 *
 	 * Create a local URL based on your basepath.
 	 * Segments can be passed in as a string or an array, same as site_url
 	 * or a URL to a file can be passed in, e.g. to an image file.
 	 *
 	 * @param	string
 	 * @return	string
 	 */
 	function base_url($uri = '')
 	{
 		$CI =& get_instance();
 		return $CI->config->base_url($uri);
 	}
 }

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

 if ( ! function_exists('current_url'))
 {
 	/**
 	 * Current URL
 	 *
 	 * Returns the full URL (including segments) of the page where this
 	 * function is placed
 	 *
 	 * @return	string
 	 */
 	function current_url()
 	{
 		$CI =& get_instance();
 		return $CI->config->site_url($CI->uri->uri_string());
 	}
 }

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

 if ( ! function_exists('uri_string'))
 {
 	/**
 	 * URL String
 	 *
 	 * Returns the URI segments.
 	 *
 	 * @return	string
 	 */
 	function uri_string()
 	{
 		$CI =& get_instance();
 		return $CI->uri->uri_string();
 	}
 }

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

 if ( ! function_exists('index_page'))
 {
 	/**
 	 * Index page
 	 *
 	 * Returns the "index_page" from your config file
 	 *
 	 * @return	string
 	 */
 	function index_page()
 	{
 		$CI =& get_instance();
 		return $CI->config->item('index_page');
 	}
 }

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

 if ( ! function_exists('anchor'))
 {
 	/**
 	 * Anchor Link
 	 *
 	 * Creates an anchor based on the local URL.
 	 *
 	 * @param	string	the URL
 	 * @param	string	the link title
 	 * @param	mixed	any attributes
 	 * @return	string
 	 */
 	function anchor($uri = '', $title = '', $attributes = '')
 	{
 		$title = (string) $title;

 		if ( ! is_array($uri))
 		{
 			$site_url = preg_match('!^\w+://! i', $uri) ? $uri : site_url($uri);
 		}
 		else
 		{
 			$site_url = site_url($uri);
 		}

 		if ($title == '')
 		{
 			$title = $site_url;
 		}

 		if ($attributes != '')
 		{
 			$attributes = _parse_attributes($attributes);
 		}

 		return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>';
 	}
 }

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

 if ( ! function_exists('anchor_popup'))
 {
 	/**
 	 * Anchor Link - Pop-up version
 	 *
 	 * Creates an anchor based on the local URL. The link
 	 * opens a new window based on the attributes specified.
 	 *
 	 * @param	string	the URL
 	 * @param	string	the link title
 	 * @param	mixed	any attributes
 	 * @return	string
 	 */
 	function anchor_popup($uri = '', $title = '', $attributes = FALSE)
 	{
 		$title = (string) $title;
 		$site_url = preg_match('!^\w+://! i', $uri) ? $uri : site_url($uri);

 		if ($title == '')
 		{
 			$title = $site_url;
 		}

 		if ($attributes === FALSE)
 		{
 			return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title.'</a>';
 		}

 		if ( ! is_array($attributes))
 		{
 			$attributes = array();
 		}

 		foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val)
 		{
 			$atts[$key] = isset($attributes[$key]) ? $attributes[$key] : $val;
 			unset($attributes[$key]);
 		}

 		if ($attributes != '')
 		{
 			$attributes = _parse_attributes($attributes);
 		}

 		return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"".$attributes.'>'.$title.'</a>';
 	}
 }

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

 if ( ! function_exists('mailto'))
 {
 	/**
 	 * Mailto Link
 	 *
 	 * @param	string	the email address
 	 * @param	string	the link title
 	 * @param	mixed	any attributes
 	 * @return	string
 	 */
 	function mailto($email, $title = '', $attributes = '')
 	{
 		$title = (string) $title;

 		if ($title == '')
 		{
 			$title = $email;
 		}

 		return '<a href="mailto:'.$email.'"'._parse_attributes($attributes).'>'.$title.'</a>';
 	}
 }

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

 if ( ! function_exists('safe_mailto'))
 {
 	/**
 	 * Encoded Mailto Link
 	 *
 	 * Create a spam-protected mailto link written in Javascript
 	 *
 	 * @param	string	the email address
 	 * @param	string	the link title
 	 * @param	mixed	any attributes
 	 * @return	string
 	 */
 	function safe_mailto($email, $title = '', $attributes = '')
 	{
 		$title = (string) $title;

 		if ($title == '')
 		{
 			$title = $email;
 		}

 		$x = str_split('<a href="mailto:', 1);

 		for ($i = 0, $l = strlen($email); $i < $l; $i++)
 		{
 			$x[] = '|'.ord($email[$i]);
 		}

 		$x[] = '"';

 		if ($attributes != '')
 		{
 			if (is_array($attributes))
 			{
 				foreach ($attributes as $key => $val)
 				{
 					$x[] =  ' '.$key.'="';
 					for ($i = 0, $l = strlen($val); $i < $l; $i++)
 					{
 						$x[] = '|'.ord($val[$i]);
 					}
 					$x[] = '"';
 				}
 			}
 			else
 			{
 				for ($i = 0, $l = strlen($attributes); $i < $l; $i++)
 				{
 					$x[] = $attributes[$i];
 				}
 			}
 		}

 		$x[] = '>';

 		$temp = array();
 		for ($i = 0, $l = strlen($title); $i < $l; $i++)
 		{
 			$ordinal = ord($title[$i]);

 			if ($ordinal < 128)
 			{
 				$x[] = '|'.$ordinal;
 			}
 			else
 			{
 				if (count($temp) === 0)
 				{
 					$count = ($ordinal < 224) ? 2 : 3;
 				}

 				$temp[] = $ordinal;
 				if (count($temp) === $count)
 				{
 					$number = ($count === 3)
 							? (($temp[0] % 16) * 4096) + (($temp[1] % 64) * 64) + ($temp[2] % 64)
 							: (($temp[0] % 32) * 64) + ($temp[1] % 64);
 					$x[] = '|'.$number;
 					$count = 1;
 					$temp = array();
 				}
 			}
 		}

 		$x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>';

 		$x = array_reverse($x);
 		ob_start();

 	?><script type="text/javascript">
 	//<![CDATA[
 	var l=new Array();
 	<?php
 	for ($i = 0, $c = count($x); $i < $c; $i++) { ?>l[<?php echo $i; ?>]='<?php echo $x[$i]; ?>';<?php } ?>

 	for (var i = l.length-1; i >= 0; i=i-1){
 	if (l[i].substring(0, 1) == '|') document.write("&#"+unescape(l[i].substring(1))+";");
 	else document.write(unescape(l[i]));}
 	//]]>
 	</script><?php

 		$buffer = ob_get_contents();
 		ob_end_clean();
 		return $buffer;
 	}
 }

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

 if ( ! function_exists('auto_link'))
 {
 	/**
 	 * Auto-linker
 	 *
 	 * Automatically links URL and Email addresses.
 	 * Note: There's a bit of extra code here to deal with
 	 * URLs or emails that end in a period. We'll strip these
 	 * off and add them after the link.
 	 *
 	 * @param	string	the string
 	 * @param	string	the type: email, url, or both
 	 * @param	bool	whether to create pop-up links
 	 * @return	string
 	 */
 	function auto_link($str, $type = 'both', $popup = FALSE)
 	{
 		if ($type !== 'email' && preg_match_all('#(^|\s|\(|\b)((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i', $str, $matches))
 		{
 			$pop = ($popup) ? ' target="_blank" ' : '';

 			for ($i = 0, $c = count($matches[0]); $i < $c; $i++)
 			{
 				if (preg_match('|\.$|', $matches[6][$i]))
 				{
 					$period = '.';
 					$matches[6][$i] = substr($matches[6][$i], 0, -1);
 				}
 				else
 				{
 					$period = '';
 				}

 				$str = str_replace($matches[0][$i],
 							$matches[1][$i].'<a href="http'.$matches[4][$i].'://'
 								.$matches[5][$i].$matches[6][$i].'"'.$pop.'>http'
 								.$matches[4][$i].'://'.$matches[5][$i]
 								.$matches[6][$i].'</a>'.$period,
 							$str);
 			}
 		}

 		if ($type !== 'url' && preg_match_all('/([a-zA-Z0-9_\.\-\+]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i', $str, $matches))
 		{
 			for ($i = 0, $c = count($matches); $i < $c; $i++)
 			{
 				if (preg_match('|\.$|', $matches[3][$i]))
 				{
 					$period = '.';
 					$matches[3][$i] = substr($matches[3][$i], 0, -1);
 				}
 				else
 				{
 					$period = '';
 				}

 				$str = str_replace($matches[0][$i], safe_mailto($matches[1][$i].'@'.$matches[2][$i].'.'.$matches[3][$i]).$period, $str);
 			}
 		}

 		return $str;
 	}
 }

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

 if ( ! function_exists('prep_url'))
 {
 	/**
 	 * Prep URL
 	 *
 	 * Simply adds the http:// part if no scheme is included
 	 *
 	 * @param	string	the URL
 	 * @return	string
 	 */
 	function prep_url($str = '')
 	{
 		if ($str === 'http://' OR $str == '')
 		{
 			return '';
 		}

 		$url = parse_url($str);

 		if ( ! $url OR ! isset($url['scheme']))
 		{
 			return 'http://'.$str;
 		}

 		return $str;
 	}
 }

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

 if ( ! function_exists('url_title'))
 {
 	/**
 	 * Create URL Title
 	 *
 	 * Takes a "title" string as input and creates a
 	 * human-friendly URL string with a "separator" string
 	 * as the word separator.
 	 *
 	 * @param	string	the string
 	 * @param	string	the separator
 	 * @param	bool
 	 * @return	string
 	 */
 	function url_title($str, $separator = '-', $lowercase = FALSE)
 	{
 		if ($separator === 'dash')
 		{
 			$separator = '-';
 		}
 		elseif ($separator === 'underscore')
 		{
 			$separator = '_';
 		}

 		$q_separator = preg_quote($separator);

 		$trans = array(
 				'&.+?;'			=> '',
 				'[^a-z0-9 _-]'		=> '',
 				'\s+'			=> $separator,
 				'('.$q_separator.')+'	=> $separator
 			);

 		$str = strip_tags($str);
 		foreach ($trans as $key => $val)
 		{
 			$str = preg_replace('#'.$key.'#i', $val, $str);
 		}

 		if ($lowercase === TRUE)
 		{
 			$str = strtolower($str);
 		}

 		return trim(trim($str, $separator));
 	}
 }

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

 if ( ! function_exists('redirect'))
 {
 	/**
 	 * Header Redirect
 	 *
 	 * Header redirect in two flavors
 	 * For very fine grained control over headers, you could use the Output
 	 * Library's set_header() function.
 	 *
 	 * @param	string	the URL
 	 * @param	string	the method: location or refresh
 	 * @param	int
 	 * @return	string
 	 */
 	function redirect($uri = '', $method = 'auto', $http_response_code = 302)
 	{
 		if ( ! preg_match('#^https?://#i', $uri))
 		{
 			$uri = site_url($uri);
 		}

 		// IIS environment likely? Use 'refresh' for better compatibility
 		if (DIRECTORY_SEPARATOR !== '/' && $method === 'auto')
 		{
 			$method = 'refresh';
 		}

 		switch($method)
 		{
 			case 'refresh':
 				header('Refresh:0;url='.$uri);
 				break;
 			default:
 				header('Location: '.$uri, TRUE, $http_response_code);
 				break;
 		}
 		exit;
 	}
 }

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

 if ( ! function_exists('_parse_attributes'))
 {
 	/**
 	 * Parse out the attributes
 	 *
 	 * Some of the functions use this
 	 *
 	 * @param	array
 	 * @param	bool
 	 * @return	string
 	 */
 	function _parse_attributes($attributes, $javascript = FALSE)
 	{
 		if (is_string($attributes))
 		{
 			return ($attributes != '') ? ' '.$attributes : '';
 		}

 		$att = '';
 		foreach ($attributes as $key => $val)
 		{
 			if ($javascript == TRUE)
 			{
 				$att .= $key.'='.$val.',';
 			}
 			else
 			{
 				$att .= ' '.$key.'="'.$val.'"';
 			}
 		}

 		if ($javascript == TRUE && $att != '')
 		{
 			return substr($att, 0, -1);
 		}

 		return $att;
 	}
 }

 /* End of file url_helper.php */
 /* Location: ./system/helpers/url_helper.php */
	<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
	/**
	* CodeIgniter
	*
	* An open source application development framework for PHP 5.2.4 or newer
	*
	* NOTICE OF LICENSE
	*
	* Licensed under the Open Software License version 3.0
	*
	* This source file is subject to the Open Software License (OSL 3.0) that is
	* bundled with this package in the files license.txt / license.rst. It is
	* also available through the world wide web at this URL:
	* http://opensource.org/licenses/OSL-3.0
	* If you did not receive a copy of the license and are unable to obtain it
	* through the world wide web, please send an email to
	* licensing@ellislab.com so we can send you a copy immediately.
	*
	* @package CodeIgniter
	* @author EllisLab Dev Team
	* @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
	* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
	* @link http://codeigniter.com
	* @since Version 1.0
	* @filesource
	*/

	/**
	* CodeIgniter URL Helpers
	*
	* @package CodeIgniter
	* @subpackage Helpers
	* @category Helpers
	* @author EllisLab Dev Team
	* @link http://codeigniter.com/user_guide/helpers/url_helper.html
	*/

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

	if ( ! function_exists('site_url'))
	{
	/**
	* Site URL
	*
	* Create a local URL based on your basepath. Segments can be passed via the
	* first parameter either as a string or an array.
	*
	* @param string
	* @return string
	*/
	function site_url($uri = '')
	{
	$CI =& get_instance();
	return $CI->config->site_url($uri);
	}
	}

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

	if ( ! function_exists('base_url'))
	{
	/**
	* Base URL
	*
	* Create a local URL based on your basepath.
	* Segments can be passed in as a string or an array, same as site_url
	* or a URL to a file can be passed in, e.g. to an image file.
	*
	* @param string
	* @return string
	*/
	function base_url($uri = '')
	{
	$CI =& get_instance();
	return $CI->config->base_url($uri);
	}
	}

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

	if ( ! function_exists('current_url'))
	{
	/**
	* Current URL
	*
	* Returns the full URL (including segments) of the page where this
	* function is placed
	*
	* @return string
	*/
	function current_url()
	{
	$CI =& get_instance();
	return $CI->config->site_url($CI->uri->uri_string());
	}
	}

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

	if ( ! function_exists('uri_string'))
	{
	/**
	* URL String
	*
	* Returns the URI segments.
	*
	* @return string
	*/
	function uri_string()
	{
	$CI =& get_instance();
	return $CI->uri->uri_string();
	}
	}

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

	if ( ! function_exists('index_page'))
	{
	/**
	* Index page
	*
	* Returns the "index_page" from your config file
	*
	* @return string
	*/
	function index_page()
	{
	$CI =& get_instance();
	return $CI->config->item('index_page');
	}
	}

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

	if ( ! function_exists('anchor'))
	{
	/**
	* Anchor Link
	*
	* Creates an anchor based on the local URL.
	*
	* @param string the URL
	* @param string the link title
	* @param mixed any attributes
	* @return string
	*/
	function anchor($uri = '', $title = '', $attributes = '')
	{
	$title = (string) $title;

	if ( ! is_array($uri))
	{
	$site_url = preg_match('!^\w+://! i', $uri) ? $uri : site_url($uri);
	}
	else
	{
	$site_url = site_url($uri);
	}

	if ($title == '')
	{
	$title = $site_url;
	}

	if ($attributes != '')
	{
	$attributes = _parse_attributes($attributes);
	}

	return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>';
	}
	}

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

	if ( ! function_exists('anchor_popup'))
	{
	/**
	* Anchor Link - Pop-up version
	*
	* Creates an anchor based on the local URL. The link
	* opens a new window based on the attributes specified.
	*
	* @param string the URL
	* @param string the link title
	* @param mixed any attributes
	* @return string
	*/
	function anchor_popup($uri = '', $title = '', $attributes = FALSE)
	{
	$title = (string) $title;
	$site_url = preg_match('!^\w+://! i', $uri) ? $uri : site_url($uri);

	if ($title == '')
	{
	$title = $site_url;
	}

	if ($attributes === FALSE)
	{
	return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title.'</a>';
	}

	if ( ! is_array($attributes))
	{
	$attributes = array();
	}

	foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val)
	{
	$atts[$key] = isset($attributes[$key]) ? $attributes[$key] : $val;
	unset($attributes[$key]);
	}

	if ($attributes != '')
	{
	$attributes = _parse_attributes($attributes);
	}

	return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"".$attributes.'>'.$title.'</a>';
	}
	}

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

	if ( ! function_exists('mailto'))
	{
	/**
	* Mailto Link
	*
	* @param string the email address
	* @param string the link title
	* @param mixed any attributes
	* @return string
	*/
	function mailto($email, $title = '', $attributes = '')
	{
	$title = (string) $title;

	if ($title == '')
	{
	$title = $email;
	}

	return '<a href="mailto:'.$email.'"'._parse_attributes($attributes).'>'.$title.'</a>';
	}
	}

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

	if ( ! function_exists('safe_mailto'))
	{
	/**
	* Encoded Mailto Link
	*
	* Create a spam-protected mailto link written in Javascript
	*
	* @param string the email address
	* @param string the link title
	* @param mixed any attributes
	* @return string
	*/
	function safe_mailto($email, $title = '', $attributes = '')
	{
	$title = (string) $title;

	if ($title == '')
	{
	$title = $email;
	}

	$x = str_split('<a href="mailto:', 1);

	for ($i = 0, $l = strlen($email); $i < $l; $i++)
	{
	$x[] = '\|'.ord($email[$i]);
	}

	$x[] = '"';

	if ($attributes != '')
	{
	if (is_array($attributes))
	{
	foreach ($attributes as $key => $val)
	{
	$x[] = ' '.$key.'="';
	for ($i = 0, $l = strlen($val); $i < $l; $i++)
	{
	$x[] = '\|'.ord($val[$i]);
	}
	$x[] = '"';
	}
	}
	else
	{
	for ($i = 0, $l = strlen($attributes); $i < $l; $i++)
	{
	$x[] = $attributes[$i];
	}
	}
	}

	$x[] = '>';

	$temp = array();
	for ($i = 0, $l = strlen($title); $i < $l; $i++)
	{
	$ordinal = ord($title[$i]);

	if ($ordinal < 128)
	{
	$x[] = '\|'.$ordinal;
	}
	else
	{
	if (count($temp) === 0)
	{
	$count = ($ordinal < 224) ? 2 : 3;
	}

	$temp[] = $ordinal;
	if (count($temp) === $count)
	{
	$number = ($count === 3)
	? (($temp[0] % 16) * 4096) + (($temp[1] % 64) * 64) + ($temp[2] % 64)
	: (($temp[0] % 32) * 64) + ($temp[1] % 64);
	$x[] = '\|'.$number;
	$count = 1;
	$temp = array();
	}
	}
	}

	$x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>';

	$x = array_reverse($x);
	ob_start();

	?><script type="text/javascript">
	//<![CDATA[
	var l=new Array();
	<?php
	for ($i = 0, $c = count($x); $i < $c; $i++) { ?>l[<?php echo $i; ?>]='<?php echo $x[$i]; ?>';<?php } ?>

	for (var i = l.length-1; i >= 0; i=i-1){
	if (l[i].substring(0, 1) == '\|') document.write("&#"+unescape(l[i].substring(1))+";");
	else document.write(unescape(l[i]));}
	//]]>
	</script><?php

	$buffer = ob_get_contents();
	ob_end_clean();
	return $buffer;
	}
	}

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

	if ( ! function_exists('auto_link'))
	{
	/**
	* Auto-linker
	*
	* Automatically links URL and Email addresses.
	* Note: There's a bit of extra code here to deal with
	* URLs or emails that end in a period. We'll strip these
	* off and add them after the link.
	*
	* @param string the string
	* @param string the type: email, url, or both
	* @param bool whether to create pop-up links
	* @return string
	*/
	function auto_link($str, $type = 'both', $popup = FALSE)
	{
	if ($type !== 'email' && preg_match_all('#(^\|\s\|\(\|\b)((http(s?)://)\|(www\.))(\w+[^\s\)\<]+)#i', $str, $matches))
	{
	$pop = ($popup) ? ' target="_blank" ' : '';

	for ($i = 0, $c = count($matches[0]); $i < $c; $i++)
	{
	if (preg_match('\|\.$\|', $matches[6][$i]))
	{
	$period = '.';
	$matches[6][$i] = substr($matches[6][$i], 0, -1);
	}
	else
	{
	$period = '';
	}

	$str = str_replace($matches[0][$i],
	$matches[1][$i].'<a href="http'.$matches[4][$i].'://'
	.$matches[5][$i].$matches[6][$i].'"'.$pop.'>http'
	.$matches[4][$i].'://'.$matches[5][$i]
	.$matches[6][$i].'</a>'.$period,
	$str);
	}
	}

	if ($type !== 'url' && preg_match_all('/([a-zA-Z0-9_\.\-\+]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i', $str, $matches))
	{
	for ($i = 0, $c = count($matches); $i < $c; $i++)
	{
	if (preg_match('\|\.$\|', $matches[3][$i]))
	{
	$period = '.';
	$matches[3][$i] = substr($matches[3][$i], 0, -1);
	}
	else
	{
	$period = '';
	}

	$str = str_replace($matches[0][$i], safe_mailto($matches[1][$i].'@'.$matches[2][$i].'.'.$matches[3][$i]).$period, $str);
	}
	}

	return $str;
	}
	}

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

	if ( ! function_exists('prep_url'))
	{
	/**
	* Prep URL
	*
	* Simply adds the http:// part if no scheme is included
	*
	* @param string the URL
	* @return string
	*/
	function prep_url($str = '')
	{
	if ($str === 'http://' OR $str == '')
	{
	return '';
	}

	$url = parse_url($str);

	if ( ! $url OR ! isset($url['scheme']))
	{
	return 'http://'.$str;
	}

	return $str;
	}
	}

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

	if ( ! function_exists('url_title'))
	{
	/**
	* Create URL Title
	*
	* Takes a "title" string as input and creates a
	* human-friendly URL string with a "separator" string
	* as the word separator.
	*
	* @param string the string
	* @param string the separator
	* @param bool
	* @return string
	*/
	function url_title($str, $separator = '-', $lowercase = FALSE)
	{
	if ($separator === 'dash')
	{
	$separator = '-';
	}
	elseif ($separator === 'underscore')
	{
	$separator = '_';
	}

	$q_separator = preg_quote($separator);

	$trans = array(
	'&.+?;' => '',
	'[^a-z0-9 _-]' => '',
	'\s+' => $separator,
	'('.$q_separator.')+' => $separator
	);

	$str = strip_tags($str);
	foreach ($trans as $key => $val)
	{
	$str = preg_replace('#'.$key.'#i', $val, $str);
	}

	if ($lowercase === TRUE)
	{
	$str = strtolower($str);
	}

	return trim(trim($str, $separator));
	}
	}

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

	if ( ! function_exists('redirect'))
	{
	/**
	* Header Redirect
	*
	* Header redirect in two flavors
	* For very fine grained control over headers, you could use the Output
	* Library's set_header() function.
	*
	* @param string the URL
	* @param string the method: location or refresh
	* @param int
	* @return string
	*/
	function redirect($uri = '', $method = 'auto', $http_response_code = 302)
	{
	if ( ! preg_match('#^https?://#i', $uri))
	{
	$uri = site_url($uri);
	}

	// IIS environment likely? Use 'refresh' for better compatibility
	if (DIRECTORY_SEPARATOR !== '/' && $method === 'auto')
	{
	$method = 'refresh';
	}

	switch($method)
	{
	case 'refresh':
	header('Refresh:0;url='.$uri);
	break;
	default:
	header('Location: '.$uri, TRUE, $http_response_code);
	break;
	}
	exit;
	}
	}

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

	if ( ! function_exists('_parse_attributes'))
	{
	/**
	* Parse out the attributes
	*
	* Some of the functions use this
	*
	* @param array
	* @param bool
	* @return string
	*/
	function _parse_attributes($attributes, $javascript = FALSE)
	{
	if (is_string($attributes))
	{
	return ($attributes != '') ? ' '.$attributes : '';
	}

	$att = '';
	foreach ($attributes as $key => $val)
	{
	if ($javascript == TRUE)
	{
	$att .= $key.'='.$val.',';
	}
	else
	{
	$att .= ' '.$key.'="'.$val.'"';
	}
	}

	if ($javascript == TRUE && $att != '')
	{
	return substr($att, 0, -1);
	}

	return $att;
	}
	}

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