backed out 648b42a75739, which was a NON-trivial whitespace commit. It broke the Typography class's string replacements, for instance

16 files changed, 194 insertions, 194 deletions

diff --git a/system/core/Benchmark.php b/system/core/Benchmark.php
index 3686c2d73..515550e9f 100644
--- a/system/core/Benchmark.php
+++ b/system/core/Benchmark.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -19,7 +19,7 @@
  * CodeIgniter Benchmark Class
  *
  * This class enables you to mark points and calculate the time difference
- * between them. Memory consumption can also be displayed.
+ * between them.  Memory consumption can also be displayed.
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index b6f5e872c..03b25ab9e 100644
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -29,28 +29,28 @@
 
 /*
  * ------------------------------------------------------
- * Define the CodeIgniter Version
+ *  Define the CodeIgniter Version
  * ------------------------------------------------------
  */
 	define('CI_VERSION', '2.0.2');
 
 /*
  * ------------------------------------------------------
- * Define the CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
+ *  Define the CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
  * ------------------------------------------------------
  */
 	define('CI_CORE', FALSE);
 
 /*
  * ------------------------------------------------------
- * Load the global functions
+ *  Load the global functions
  * ------------------------------------------------------
  */
 	require(BASEPATH.'core/Common.php');
 
 /*
  * ------------------------------------------------------
- * Load the framework constants
+ *  Load the framework constants
  * ------------------------------------------------------
  */
 	if (defined('ENVIRONMENT') AND file_exists(APPPATH.'config/'.ENVIRONMENT.'/constants.php'))
@@ -64,7 +64,7 @@
 
 /*
  * ------------------------------------------------------
- * Define a custom error handler so we can log PHP errors
+ *  Define a custom error handler so we can log PHP errors
  * ------------------------------------------------------
  */
 	set_error_handler('_exception_handler');
@@ -76,7 +76,7 @@
 
 /*
  * ------------------------------------------------------
- * Set the subclass_prefix
+ *  Set the subclass_prefix
  * ------------------------------------------------------
  *
  * Normally the "subclass_prefix" is set in the config file.
@@ -85,7 +85,7 @@
  * "libraries" folder. Since CI allows config items to be
  * overriden via data set in the main index. php file,
  * before proceeding we need to know if a subclass_prefix
- * override exists. If so, we will set this value now,
+ * override exists.  If so, we will set this value now,
  * before any classes are loaded
  * Note: Since the config file data is cached it doesn't
  * hurt to load it here.
@@ -97,7 +97,7 @@
 
 /*
  * ------------------------------------------------------
- * Set a liberal script execution time limit
+ *  Set a liberal script execution time limit
  * ------------------------------------------------------
  */
 	if (function_exists("set_time_limit") == TRUE AND @ini_get("safe_mode") == 0)
@@ -107,7 +107,7 @@
 
 /*
  * ------------------------------------------------------
- * Start the timer... tick tock tick tock...
+ *  Start the timer... tick tock tick tock...
  * ------------------------------------------------------
  */
 	$BM =& load_class('Benchmark', 'core');
@@ -116,21 +116,21 @@
 
 /*
  * ------------------------------------------------------
- * Instantiate the hooks class
+ *  Instantiate the hooks class
  * ------------------------------------------------------
  */
 	$EXT =& load_class('Hooks', 'core');
 
 /*
  * ------------------------------------------------------
- * Is there a "pre_system" hook?
+ *  Is there a "pre_system" hook?
  * ------------------------------------------------------
  */
 	$EXT->_call_hook('pre_system');
 
 /*
  * ------------------------------------------------------
- * Instantiate the config class
+ *  Instantiate the config class
  * ------------------------------------------------------
  */
 	$CFG =& load_class('Config', 'core');
@@ -143,7 +143,7 @@
 
 /*
  * ------------------------------------------------------
- * Instantiate the UTF-8 class
+ *  Instantiate the UTF-8 class
  * ------------------------------------------------------
  *
  * Note: Order here is rather important as the UTF-8
@@ -157,14 +157,14 @@
 
 /*
  * ------------------------------------------------------
- * Instantiate the URI class
+ *  Instantiate the URI class
  * ------------------------------------------------------
  */
 	$URI =& load_class('URI', 'core');
 
 /*
  * ------------------------------------------------------
- * Instantiate the routing class and set the routing
+ *  Instantiate the routing class and set the routing
  * ------------------------------------------------------
  */
 	$RTR =& load_class('Router', 'core');
@@ -178,14 +178,14 @@
 
 /*
  * ------------------------------------------------------
- * Instantiate the output class
+ *  Instantiate the output class
  * ------------------------------------------------------
  */
 	$OUT =& load_class('Output', 'core');
 
 /*
  * ------------------------------------------------------
- *	Is there a valid cache file? If so, we're done...
+ *	Is there a valid cache file?  If so, we're done...
  * ------------------------------------------------------
  */
 	if ($EXT->_call_hook('cache_override') === FALSE)
@@ -205,21 +205,21 @@
 
 /*
  * ------------------------------------------------------
- * Load the Input class and sanitize globals
+ *  Load the Input class and sanitize globals
  * ------------------------------------------------------
  */
 	$IN	=& load_class('Input', 'core');
 
 /*
  * ------------------------------------------------------
- * Load the Language class
+ *  Load the Language class
  * ------------------------------------------------------
  */
 	$LANG =& load_class('Lang', 'core');
 
 /*
  * ------------------------------------------------------
- * Load the app controller and local controller
+ *  Load the app controller and local controller
  * ------------------------------------------------------
  *
  */
@@ -252,14 +252,14 @@
 
 /*
  * ------------------------------------------------------
- * Security check
+ *  Security check
  * ------------------------------------------------------
  *
- * None of the functions in the app controller or the
- * loader class can be called via the URI, nor can
- * controller functions that begin with an underscore
+ *  None of the functions in the app controller or the
+ *  loader class can be called via the URI, nor can
+ *  controller functions that begin with an underscore
  */
-	$class = $RTR->fetch_class();
+	$class  = $RTR->fetch_class();
 	$method = $RTR->fetch_method();
 
 	if ( ! class_exists($class)
@@ -272,14 +272,14 @@
 
 /*
  * ------------------------------------------------------
- * Is there a "pre_controller" hook?
+ *  Is there a "pre_controller" hook?
  * ------------------------------------------------------
  */
 	$EXT->_call_hook('pre_controller');
 
 /*
  * ------------------------------------------------------
- * Instantiate the requested controller
+ *  Instantiate the requested controller
  * ------------------------------------------------------
  */
 	// Mark a start point so we can benchmark the controller
@@ -289,14 +289,14 @@
 
 /*
  * ------------------------------------------------------
- * Is there a "post_controller_constructor" hook?
+ *  Is there a "post_controller_constructor" hook?
  * ------------------------------------------------------
  */
 	$EXT->_call_hook('post_controller_constructor');
 
 /*
  * ------------------------------------------------------
- * Call the requested method
+ *  Call the requested method
  * ------------------------------------------------------
  */
 	// Is there a "remap" function? If so, we call it instead
@@ -345,14 +345,14 @@
 
 /*
  * ------------------------------------------------------
- * Is there a "post_controller" hook?
+ *  Is there a "post_controller" hook?
  * ------------------------------------------------------
  */
 	$EXT->_call_hook('post_controller');
 
 /*
  * ------------------------------------------------------
- * Send the final rendered output to the browser
+ *  Send the final rendered output to the browser
  * ------------------------------------------------------
  */
 	if ($EXT->_call_hook('display_override') === FALSE)
@@ -362,14 +362,14 @@
 
 /*
  * ------------------------------------------------------
- * Is there a "post_system" hook?
+ *  Is there a "post_system" hook?
  * ------------------------------------------------------
  */
 	$EXT->_call_hook('post_system');
 
 /*
  * ------------------------------------------------------
- * Close the DB connection if one exists
+ *  Close the DB connection if one exists
  * ------------------------------------------------------
  */
 	if (class_exists('CI_DB') AND isset($CI->db))
diff --git a/system/core/Common.php b/system/core/Common.php
index eb9e14425..d1e8e77e9 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -58,7 +58,7 @@
  * Tests for file writability
  *
  * is_writable() returns TRUE on Windows servers when you really can't write to
- * the file, based on the read-only attribute. is_writable() is also unreliable
+ * the file, based on the read-only attribute.  is_writable() is also unreliable
  * on Unix servers if safe_mode is on.
  *
  * @access	private
@@ -73,7 +73,7 @@
 		}
 
 		// For windows servers and safe_mode "on" installations we'll actually
-		// write a file then read it. Bah...
+		// write a file then read it.  Bah...
 		if (is_dir($file))
 		{
 			$file = rtrim($file, '/').'/'.md5(mt_rand(1,100).mt_rand(1,100));
@@ -102,8 +102,8 @@
 /**
 * Class registry
 *
-* This function acts as a singleton. If the requested class does not
-* exist it is instantiated and set to a static variable. If it has
+* This function acts as a singleton.  If the requested class does not
+* exist it is instantiated and set to a static variable.  If it has
 * previously been instantiated the variable is returned.
 *
 * @access	public
@@ -116,7 +116,7 @@
 	{
 		static $_classes = array();
 
-		// Does the class exist? If so, we're done...
+		// Does the class exist?  If so, we're done...
 		if (isset($_classes[$class]))
 		{
 			return $_classes[$class];
@@ -141,7 +141,7 @@
 			}
 		}
 
-		// Is the request a class extension? If so we load it too
+		// Is the request a class extension?  If so we load it too
 		if (file_exists(APPPATH.$directory.'/'.config_item('subclass_prefix').$class.'.php'))
 		{
 			$name = config_item('subclass_prefix').$class;
@@ -170,7 +170,7 @@
 // --------------------------------------------------------------------
 
 /**
-* Keeps track of which libraries have been loaded. This function is
+* Keeps track of which libraries have been loaded.  This function is
 * called by the load_class() function above
 *
 * @access	public
@@ -399,7 +399,7 @@
 
 		if ($text == '')
 		{
-			show_error('No status text available. Please check your status code number or supply your own message text.', 500);
+			show_error('No status text available.  Please check your status code number or supply your own message text.', 500);
 		}
 
 		$server_protocol = (isset($_SERVER['SERVER_PROTOCOL'])) ? $_SERVER['SERVER_PROTOCOL'] : FALSE;
@@ -424,7 +424,7 @@
 * Exception Handler
 *
 * This is the custom exception handler that is declaired at the top
-* of Codeigniter.php. The main reason we use this is to permit
+* of Codeigniter.php.  The main reason we use this is to permit
 * PHP errors to be logged in our own log files since the user may
 * not have access to server logs. Since this function
 * effectively intercepts PHP errors, however, we also need
@@ -455,7 +455,7 @@
 			$_error->show_php_error($severity, $message, $filepath, $line);
 		}
 
-		// Should we log the error? No? We're done...
+		// Should we log the error?  No?  We're done...
 		if (config_item('log_threshold') == 0)
 		{
 			return;
@@ -479,16 +479,16 @@
 	function remove_invisible_characters($str, $url_encoded = TRUE)
 	{
 		$non_displayables = array();
-
+		
 		// every control character except newline (dec 10)
 		// carriage return (dec 13), and horizontal tab (dec 09)
-
+		
 		if ($url_encoded)
 		{
 			$non_displayables[] = '/%0[0-8bcef]/';	// url encoded 00-08, 11, 12, 14, 15
 			$non_displayables[] = '/%1[0-9a-f]/';	// url encoded 16-31
 		}
-
+		
 		$non_displayables[] = '/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S';	// 00-08, 11, 12, 14-31, 127
 
 		do
diff --git a/system/core/Config.php b/system/core/Config.php
index fa71f4d3d..1096a9ea6 100644
--- a/system/core/Config.php
+++ b/system/core/Config.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -37,11 +37,11 @@ class CI_Config {
 	 *
 	 * Sets the $config data from the primary config.php file as a class variable
 	 *
-	 * @access  public
-	 * @param  string	the config file name
-	 * @param  boolean if configuration values should be loaded into their own section
-	 * @param  boolean true if errors should just return false, false if an error message should be displayed
-	 * @return boolean if the file was successfully loaded or not
+	 * @access   public
+	 * @param   string	the config file name
+	 * @param   boolean  if configuration values should be loaded into their own section
+	 * @param   boolean  true if errors should just return false, false if an error message should be displayed
+	 * @return  boolean  if the file was successfully loaded or not
 	 */
 	function __construct()
 	{
@@ -74,8 +74,8 @@ class CI_Config {
 	 *
 	 * @access	public
 	 * @param	string	the config file name
-	 * @param  boolean if configuration values should be loaded into their own section
-	 * @param  boolean true if errors should just return false, false if an error message should be displayed
+	 * @param   boolean  if configuration values should be loaded into their own section
+	 * @param   boolean  true if errors should just return false, false if an error message should be displayed
 	 * @return	boolean	if the file was loaded correctly
 	 */
 	function load($file = '', $use_sections = FALSE, $fail_gracefully = FALSE)
@@ -305,7 +305,7 @@ class CI_Config {
 	 * Assign to Config
 	 *
 	 * This function is called by the front controller (CodeIgniter.php)
-	 * after the Config class is instantiated. It permits config items
+	 * after the Config class is instantiated.  It permits config items
 	 * to be assigned or overriden by variables contained in the index.php file
 	 *
 	 * @access	private
diff --git a/system/core/Controller.php b/system/core/Controller.php
index 107d3f346..ec86b7920 100644
--- a/system/core/Controller.php
+++ b/system/core/Controller.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -37,7 +37,7 @@ class CI_Controller {
 	public function __construct()
 	{
 		self::$instance =& $this;
-
+		
 		// Assign all the class objects that were instantiated by the
 		// bootstrap file (CodeIgniter.php) to local class variables
 		// so that CI can run as one big super object.
@@ -49,7 +49,7 @@ class CI_Controller {
 		$this->load =& load_class('Loader', 'core');
 
 		$this->load->set_base_classes()->ci_autoloader();
-
+		
 		log_message('debug', "Controller Class Initialized");
 	}
 
diff --git a/system/core/Exceptions.php b/system/core/Exceptions.php
index 2503c907f..bff86a92f 100644
--- a/system/core/Exceptions.php
+++ b/system/core/Exceptions.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -54,7 +54,7 @@ class CI_Exceptions {
 	public function __construct()
 	{
 		$this->ob_level = ob_get_level();
-		// Note: Do not log messages from this constructor.
+		// Note:  Do not log messages from this constructor.
 	}
 
 	// --------------------------------------------------------------------
@@ -75,7 +75,7 @@ class CI_Exceptions {
 	{
 		$severity = ( ! isset($this->levels[$severity])) ? $severity : $this->levels[$severity];
 
-		log_message('error', 'Severity: '.$severity.' --> '.$message. ' '.$filepath.' '.$line, TRUE);
+		log_message('error', 'Severity: '.$severity.'  --> '.$message. ' '.$filepath.' '.$line, TRUE);
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/core/Hooks.php b/system/core/Hooks.php
index ffb3258d8..fd6380f0a 100644
--- a/system/core/Hooks.php
+++ b/system/core/Hooks.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -67,7 +67,7 @@ class CI_Hooks {
 
 		if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/hooks.php'))
 		{
-		  include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php');
+		    include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php');
 		}
 		elseif (is_file(APPPATH.'config/hooks.php'))
 		{
diff --git a/system/core/Input.php b/system/core/Input.php
index 89eda56b0..dc7612e64 100644
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -36,7 +36,7 @@ class CI_Input {
 	var $_enable_csrf			= FALSE; // Set automatically based on config setting
 
 	protected $headers			= array();
-
+	
 
 	/**
 	 * Constructor
@@ -147,7 +147,7 @@ class CI_Input {
 			}
 			return $post;
 		}
-
+		
 		return $this->_fetch_from_array($_POST, $index, $xss_clean);
 	}
 
@@ -201,7 +201,7 @@ class CI_Input {
 	* @param	mixed
 	* @param	string	the value of the cookie
 	* @param	string	the number of seconds until expiration
-	* @param	string	the cookie domain. Usually: .yourdomain.com
+	* @param	string	the cookie domain.  Usually:  .yourdomain.com
 	* @param	string	the cookie path
 	* @param	string	the cookie prefix
 	* @param	bool	true makes the cookie secure
@@ -402,9 +402,9 @@ class CI_Input {
 	function _sanitize_globals()
 	{
 		// It would be "wrong" to unset any of these GLOBALS.
-		$protected = array('_SERVER', '_GET', '_POST', '_FILES', '_REQUEST',
+		$protected = array('_SERVER', '_GET', '_POST', '_FILES', '_REQUEST', 
 							'_SESSION', '_ENV', 'GLOBALS', 'HTTP_RAW_POST_DATA',
-							'system_folder', 'application_folder', 'BM', 'EXT',
+							'system_folder', 'application_folder', 'BM', 'EXT', 
 							'CFG', 'URI', 'RTR', 'OUT', 'IN');
 
 		// Unset globals for securiy.
@@ -523,7 +523,7 @@ class CI_Input {
 		{
 			$str = $this->uni->clean_string($str);
 		}
-
+		
 		// Remove control characters
 		$str = remove_invisible_characters($str);
 
@@ -579,7 +579,7 @@ class CI_Input {
 	/**
 	 * Request Headers
 	 *
-	 * In Apache, you can simply call apache_request_headers(), however for
+	 * In Apache, you can simply call apache_request_headers(), however for 
 	 * people running other webservers the function is undefined.
 	 *
 	 * @return array
@@ -609,10 +609,10 @@ class CI_Input {
 		{
 			$key = str_replace('_', ' ', strtolower($key));
 			$key = str_replace(' ', '-', ucwords($key));
-
+			
 			$this->headers[$key] = $val;
 		}
-
+		
 		return $this->headers;
 	}
 
@@ -633,7 +633,7 @@ class CI_Input {
 		{
 			$this->request_headers();
 		}
-
+		
 		if ( ! isset($this->headers[$index]))
 		{
 			return FALSE;
@@ -644,7 +644,7 @@ class CI_Input {
 			return $this->security->xss_clean($this->headers[$index]);
 		}
 
-		return $this->headers[$index];
+		return $this->headers[$index];		
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/core/Lang.php b/system/core/Lang.php
index 79eb443a0..170e6c725 100644
--- a/system/core/Lang.php
+++ b/system/core/Lang.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
diff --git a/system/core/Loader.php b/system/core/Loader.php
index 87f05d86e..721c196cc 100644
--- a/system/core/Loader.php
+++ b/system/core/Loader.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -40,7 +40,7 @@ class CI_Loader {
 	protected $_ci_loaded_files		= array();
 	protected $_ci_models			= array();
 	protected $_ci_helpers			= array();
-	protected $_ci_varmap			= array('unit_test' => 'unit',
+	protected $_ci_varmap			= array('unit_test' => 'unit', 
 											'user_agent' => 'agent');
 
 	/**
@@ -50,29 +50,29 @@ class CI_Loader {
 	 */
 	public function __construct()
 	{
-		$this->_ci_ob_level = ob_get_level();
+		$this->_ci_ob_level  = ob_get_level();
 		$this->_ci_library_paths = array(APPPATH, BASEPATH);
 		$this->_ci_helper_paths = array(APPPATH, BASEPATH);
 		$this->_ci_model_paths = array(APPPATH);
 		$this->_ci_view_paths = array(APPPATH.'views/'	=> TRUE);
-
+		
 		log_message('debug', "Loader Class Initialized");
 	}
 
 	// --------------------------------------------------------------------
-
+	
 	/**
 	 * Set _base_classes variable
 	 *
 	 * This method is called once in CI_Controller.
 	 *
-	 * @param 	array
+	 * @param 	array 	
 	 * @return 	object
 	 */
 	public function set_base_classes()
 	{
 		$this->_base_classes =& is_loaded();
-
+		
 		return $this;
 	}
 
@@ -96,7 +96,7 @@ class CI_Loader {
 		{
 			return $this->_ci_classes[$class];
 		}
-
+				
 		return FALSE;
 	}
 
@@ -260,7 +260,7 @@ class CI_Loader {
 			return DB($params, $active_record);
 		}
 
-		// Initialize the db variable. Needed to prevent
+		// Initialize the db variable.  Needed to prevent
 		// reference errors with some configurations
 		$CI->db = '';
 
@@ -323,11 +323,11 @@ class CI_Loader {
 	/**
 	 * Load View
 	 *
-	 * This function is used to load a "view" file. It has three parameters:
+	 * This function is used to load a "view" file.  It has three parameters:
 	 *
 	 * 1. The name of the "view" file to be included.
 	 * 2. An associative array of data to be extracted for use in the view.
-	 * 3. TRUE/FALSE - whether to return the data or load it. In
+	 * 3. TRUE/FALSE - whether to return the data or load it.  In
 	 * some cases it's advantageous to be able to return data so that
 	 * a developer can process it in some way.
 	 *
@@ -538,13 +538,13 @@ class CI_Loader {
 	 * Prepends a parent path to the library, model, helper, and config path arrays
 	 *
 	 * @param	string
-	 * @param 	boolean
+	 * @param 	boolean 	
 	 * @return	void
 	 */
 	public function add_package_path($path, $view_cascade=TRUE)
 	{
 		$path = rtrim($path, '/').'/';
-
+		
 		array_unshift($this->_ci_library_paths, $path);
 		array_unshift($this->_ci_model_paths, $path);
 		array_unshift($this->_ci_helper_paths, $path);
@@ -604,7 +604,7 @@ class CI_Loader {
 					unset($this->{$var}[$key]);
 				}
 			}
-
+			
 			if (isset($this->_ci_view_paths[$path.'views/']))
 			{
 				unset($this->_ci_view_paths[$path.'views/']);
@@ -643,7 +643,7 @@ class CI_Loader {
 		{
 			$$_ci_val = ( ! isset($_ci_data[$_ci_val])) ? FALSE : $_ci_data[$_ci_val];
 		}
-
+		
 		$file_exists = FALSE;
 
 		// Set the path to the requested file
@@ -665,11 +665,11 @@ class CI_Loader {
 					$file_exists = TRUE;
 					break;
 				}
-
+				
 				if ( ! $cascade)
 				{
 					break;
-				}
+				}				
 			}
 		}
 
@@ -710,9 +710,9 @@ class CI_Loader {
 		 * We buffer the output for two reasons:
 		 * 1. Speed. You get a significant speed boost.
 		 * 2. So that the final rendered template can be
-		 * post-processed by the output class. Why do we
-		 * need post processing? For one thing, in order to
-		 * show the elapsed page load time. Unless we
+		 * post-processed by the output class.  Why do we
+		 * need post processing?  For one thing, in order to
+		 * show the elapsed page load time.  Unless we
 		 * can intercept the content right before it's sent to
 		 * the browser and then stop the timer it won't be accurate.
 		 */
@@ -809,11 +809,11 @@ class CI_Loader {
 					show_error("Unable to load the requested class: ".$class);
 				}
 
-				// Safety: Was the class already loaded by a previous call?
+				// Safety:  Was the class already loaded by a previous call?
 				if (in_array($subclass, $this->_ci_loaded_files))
 				{
 					// Before we deem this to be a duplicate request, let's see
-					// if a custom object name is being supplied. If so, we'll
+					// if a custom object name is being supplied.  If so, we'll
 					// return a new instance of the object
 					if ( ! is_null($object_name))
 					{
@@ -842,17 +842,17 @@ class CI_Loader {
 			{
 				$filepath = $path.'libraries/'.$subdir.$class.'.php';
 
-				// Does the file exist? No? Bummer...
+				// Does the file exist?  No?  Bummer...
 				if ( ! file_exists($filepath))
 				{
 					continue;
 				}
 
-				// Safety: Was the class already loaded by a previous call?
+				// Safety:  Was the class already loaded by a previous call?
 				if (in_array($filepath, $this->_ci_loaded_files))
 				{
 					// Before we deem this to be a duplicate request, let's see
-					// if a custom object name is being supplied. If so, we'll
+					// if a custom object name is being supplied.  If so, we'll
 					// return a new instance of the object
 					if ( ! is_null($object_name))
 					{
@@ -875,7 +875,7 @@ class CI_Loader {
 
 		} // END FOREACH
 
-		// One last attempt. Maybe the library is in a subdirectory, but it wasn't specified?
+		// One last attempt.  Maybe the library is in a subdirectory, but it wasn't specified?
 		if ($subdir == '')
 		{
 			$path = strtolower($class).'/'.$class;
@@ -903,7 +903,7 @@ class CI_Loader {
 	 */
 	protected function _ci_init_class($class, $prefix = '', $config = FALSE, $object_name = NULL)
 	{
-		// Is there an associated config file for this class? Note: these should always be lowercase
+		// Is there an associated config file for this class?  Note: these should always be lowercase
 		if ($config === NULL)
 		{
 			// Fetch the config paths containing any package paths
@@ -970,7 +970,7 @@ class CI_Loader {
 		}
 
 		// Set the variable name we will assign the class to
-		// Was a custom class name supplied? If so we'll use it
+		// Was a custom class name supplied?  If so we'll use it
 		$class = strtolower($class);
 
 		if (is_null($object_name))
@@ -1005,7 +1005,7 @@ class CI_Loader {
 	 * The config/autoload.php file contains an array that permits sub-systems,
 	 * libraries, and helpers to be loaded automatically.
 	 *
-	 * This function is public, as it's used in the CI_Controller class.
+	 * This function is public, as it's used in the CI_Controller class.  
 	 * However, there is no reason you should ever needs to use it.
 	 *
 	 * @param	array
@@ -1021,7 +1021,7 @@ class CI_Loader {
 		{
 			include_once(APPPATH.'config/autoload.php');
 		}
-
+		
 
 		if ( ! isset($autoload))
 		{
diff --git a/system/core/Model.php b/system/core/Model.php
index 61c71b672..8566a0b66 100644
--- a/system/core/Model.php
+++ b/system/core/Model.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
diff --git a/system/core/Output.php b/system/core/Output.php
index 562dbb86b..05ace919c 100644
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -44,7 +44,7 @@ class CI_Output {
 		// Get mime types for later
 		if (defined('ENVIRONMENT') AND file_exists(APPPATH.'config/'.ENVIRONMENT.'/mimes.php'))
 		{
-		  include APPPATH.'config/'.ENVIRONMENT.'/mimes.php';
+		    include APPPATH.'config/'.ENVIRONMENT.'/mimes.php';
 		}
 		else
 		{
@@ -122,7 +122,7 @@ class CI_Output {
 	 *
 	 * Lets you set a server header which will be outputted with the final display.
 	 *
-	 * Note: If a file is cached, headers will not be sent. We need to figure out
+	 * Note:  If a file is cached, headers will not be sent.  We need to figure out
 	 * how to permit header data to be saved with the cache data...
 	 *
 	 * @access	public
@@ -261,7 +261,7 @@ class CI_Output {
 	 * $this->final_output
 	 *
 	 * This function sends the finalized output data to the browser along
-	 * with any server headers and profile data. It also stops the
+	 * with any server headers and profile data.  It also stops the
 	 * benchmark timer so the page rendering speed and memory usage can be shown.
 	 *
 	 * @access	public
@@ -269,7 +269,7 @@ class CI_Output {
 	 */
 	function _display($output = '')
 	{
-		// Note: We use globals because we can't use $CI =& get_instance()
+		// Note:  We use globals because we can't use $CI =& get_instance()
 		// since this function is sometimes called by the caching mechanism,
 		// which happens before the CI super object is available.
 		global $BM, $CFG;
@@ -290,7 +290,7 @@ class CI_Output {
 
 		// --------------------------------------------------------------------
 
-		// Do we need to write a cache file? Only if the controller does not have its
+		// Do we need to write a cache file?  Only if the controller does not have its
 		// own _output() method and we are not dealing with a cache file, which we
 		// can determine by the existence of the $CI object above
 		if ($this->cache_expiration > 0 && isset($CI) && ! method_exists($CI, '_output'))
@@ -368,7 +368,7 @@ class CI_Output {
 			// we will remove them and add them back after we insert the profile data
 			if (preg_match("|</body>.*?</html>|is", $output))
 			{
-				$output = preg_replace("|</body>.*?</html>|is", '', $output);
+				$output  = preg_replace("|</body>.*?</html>|is", '', $output);
 				$output .= $CI->profiler->run();
 				$output .= '</body></html>';
 			}
@@ -381,14 +381,14 @@ class CI_Output {
 		// --------------------------------------------------------------------
 
 		// Does the controller contain a function named _output()?
-		// If so send the output there. Otherwise, echo it.
+		// If so send the output there.  Otherwise, echo it.
 		if (method_exists($CI, '_output'))
 		{
 			$CI->_output($output);
 		}
 		else
 		{
-			echo $output; // Send it to the browser!
+			echo $output;  // Send it to the browser!
 		}
 
 		log_message('debug', "Final output sent to browser");
@@ -458,7 +458,7 @@ class CI_Output {
 	{
 		$cache_path = ($CFG->item('cache_path') == '') ? APPPATH.'cache/' : $CFG->item('cache_path');
 
-		// Build the file path. The file name is an MD5 hash of the full URI
+		// Build the file path.  The file name is an MD5 hash of the full URI
 		$uri =	$CFG->item('base_url').
 				$CFG->item('index_page').
 				$URI->uri_string;
diff --git a/system/core/Router.php b/system/core/Router.php
index a76a7bd0a..5e92a04b1 100644
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -61,7 +61,7 @@ class CI_Router {
 	 */
 	function _set_routing()
 	{
-		// Are query strings enabled in the config file? Normally CI doesn't utilize query strings
+		// Are query strings enabled in the config file?  Normally CI doesn't utilize query strings
 		// since URI segments are more search-engine friendly, but they can optionally be used.
 		// If this feature is enabled, we will gather the directory/class/method a little differently
 		$segments = array();
@@ -95,7 +95,7 @@ class CI_Router {
 		{
 			include(APPPATH.'config/routes.php');
 		}
-
+		
 		$this->routes = ( ! isset($route) OR ! is_array($route)) ? array() : $route;
 		unset($route);
 
@@ -103,7 +103,7 @@ class CI_Router {
 		// the URI doesn't correlated to a valid controller.
 		$this->default_controller = ( ! isset($this->routes['default_controller']) OR $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']);
 
-		// Were there any query string segments? If so, we'll validate them and bail out since we're done.
+		// Were there any query string segments?  If so, we'll validate them and bail out since we're done.
 		if (count($segments) > 0)
 		{
 			return $this->_validate_request($segments);
@@ -212,7 +212,7 @@ class CI_Router {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Validates the supplied segments. Attempts to determine the path to
+	 * Validates the supplied segments.  Attempts to determine the path to
 	 * the controller.
 	 *
 	 * @access	private
@@ -277,7 +277,7 @@ class CI_Router {
 
 
 		// If we've gotten this far it means that the URI does not correlate to a valid
-		// controller class. We will now see if there is an override
+		// controller class.  We will now see if there is an override
 		if ( ! empty($this->routes['404_override']))
 		{
 			$x = explode('/', $this->routes['404_override']);
@@ -296,7 +296,7 @@ class CI_Router {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Parse Routes
+	 *  Parse Routes
 	 *
 	 * This function matches any routes that may exist in
 	 * the config/routes.php file against the URI to
@@ -310,7 +310,7 @@ class CI_Router {
 		// Turn the segment array into a URI string
 		$uri = implode('/', $this->uri->segments);
 
-		// Is there a literal match? If so we're done
+		// Is there a literal match?  If so we're done
 		if (isset($this->routes[$uri]))
 		{
 			return $this->_set_request(explode('/', $this->routes[$uri]));
@@ -370,7 +370,7 @@ class CI_Router {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Set the method name
+	 *  Set the method name
 	 *
 	 * @access	public
 	 * @param	string
@@ -384,7 +384,7 @@ class CI_Router {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Fetch the current method
+	 *  Fetch the current method
 	 *
 	 * @access	public
 	 * @return	string
@@ -402,7 +402,7 @@ class CI_Router {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Set the directory name
+	 *  Set the directory name
 	 *
 	 * @access	public
 	 * @param	string
@@ -416,7 +416,7 @@ class CI_Router {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Fetch the sub-directory (if any) that contains the requested controller class
+	 *  Fetch the sub-directory (if any) that contains the requested controller class
 	 *
 	 * @access	public
 	 * @return	string
@@ -429,7 +429,7 @@ class CI_Router {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Set the controller overrides
+	 *  Set the controller overrides
 	 *
 	 * @access	public
 	 * @param	array
diff --git a/system/core/Security.php b/system/core/Security.php
index f5bfafd9b..3617cadcc 100644
--- a/system/core/Security.php
+++ b/system/core/Security.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -25,10 +25,10 @@
  * @link		http://codeigniter.com/user_guide/libraries/security.html
  */
 class CI_Security {
-
+	
 	protected $_xss_hash			= '';
 	protected $_csrf_hash			= '';
-	protected $_csrf_expire			= 7200; // Two hours (in seconds)
+	protected $_csrf_expire			= 7200;  // Two hours (in seconds)
 	protected $_csrf_token_name		= 'ci_csrf_token';
 	protected $_csrf_cookie_name	= 'ci_csrf_token';
 
@@ -52,7 +52,7 @@ class CI_Security {
 					"vbscript\s*:"				=> '[removed]', // IE, surprise!
 					"Redirect\s+302"			=> '[removed]'
 	);
-
+	
 	/**
 	 * Constructor
 	 */
@@ -95,7 +95,7 @@ class CI_Security {
 		}
 
 		// Do the tokens exist in both the _POST and _COOKIE arrays?
-		if ( ! isset($_POST[$this->_csrf_token_name]) OR
+		if ( ! isset($_POST[$this->_csrf_token_name]) OR 
 			 ! isset($_COOKIE[$this->_csrf_cookie_name]))
 		{
 			$this->csrf_show_error();
@@ -107,7 +107,7 @@ class CI_Security {
 			$this->csrf_show_error();
 		}
 
-		// We kill this since we're done and we don't want to
+		// We kill this since we're done and we don't want to 
 		// polute the _POST array
 		unset($_POST[$this->_csrf_token_name]);
 
@@ -117,7 +117,7 @@ class CI_Security {
 		$this->csrf_set_cookie();
 
 		log_message('debug', "CSRF token verified ");
-
+		
 		return $this;
 	}
 
@@ -146,7 +146,7 @@ class CI_Security {
 		setcookie($this->_csrf_cookie_name, $this->_csrf_hash, $expire, config_item('cookie_path'), config_item('cookie_domain'), $secure_cookie);
 
 		log_message('debug', "CRSF cookie Set");
-
+		
 		return $this;
 	}
 
@@ -165,9 +165,9 @@ class CI_Security {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Get CSRF Hash
+	 * Get CSRF Hash 
 	 *
-	 * Getter Method
+	 * Getter Method 
 	 *
 	 * @return 	string 	self::_csrf_hash
 	 */
@@ -196,14 +196,14 @@ class CI_Security {
 	 * XSS Clean
 	 *
 	 * Sanitizes data so that Cross Site Scripting Hacks can be
-	 * prevented. This function does a fair amount of work but
+	 * prevented.  This function does a fair amount of work but
 	 * it is extremely thorough, designed to prevent even the
-	 * most obscure XSS attempts. Nothing is ever 100% foolproof,
+	 * most obscure XSS attempts.  Nothing is ever 100% foolproof,
 	 * of course, but I haven't been able to get anything passed
 	 * the filter.
 	 *
 	 * Note: This function should only be used to deal with data
-	 * upon submission. It's not something that should
+	 * upon submission.  It's not something that should
 	 * be used for general runtime processing.
 	 *
 	 * This function was based in part on some code and ideas I
@@ -263,7 +263,7 @@ class CI_Security {
 		 */
 
 		$str = preg_replace_callback("/[a-z]+=([\'\"]).*?\\1/si", array($this, '_convert_attribute'), $str);
-
+	
 		$str = preg_replace_callback("/<\w+.*?(?=>|<|$)/si", array($this, '_decode_entity'), $str);
 
 		/*
@@ -276,7 +276,7 @@ class CI_Security {
 		 *
 		 * This prevents strings like this: ja	vascript
 		 * NOTE: we deal with spaces between characters later.
-		 * NOTE: preg_replace was found to be amazingly slow here on
+		 * NOTE: preg_replace was found to be amazingly slow here on 
 		 * large blocks of data, so we use str_replace.
 		 */
 
@@ -304,27 +304,27 @@ class CI_Security {
 		 */
 		if ($is_image === TRUE)
 		{
-			// Images have a tendency to have the PHP short opening and
-			// closing tags every so often so we skip those and only
+			// Images have a tendency to have the PHP short opening and 
+			// closing tags every so often so we skip those and only 
 			// do the long opening tags.
 			$str = preg_replace('/<\?(php)/i', "&lt;?\\1", $str);
 		}
 		else
 		{
-			$str = str_replace(array('<?', '?'.'>'), array('&lt;?', '?&gt;'), $str);
+			$str = str_replace(array('<?', '?'.'>'),  array('&lt;?', '?&gt;'), $str);
 		}
 
 		/*
 		 * Compact any exploded words
 		 *
-		 * This corrects words like: j a v a s c r i p t
+		 * This corrects words like:  j a v a s c r i p t
 		 * These words are compacted back to their correct state.
 		 */
 		$words = array(
-				'javascript', 'expression', 'vbscript', 'script',
+				'javascript', 'expression', 'vbscript', 'script', 
 				'applet', 'alert', 'document', 'write', 'cookie', 'window'
 			);
-
+			
 		foreach ($words as $word)
 		{
 			$temp = '';
@@ -341,8 +341,8 @@ class CI_Security {
 
 		/*
 		 * Remove disallowed Javascript in links or img tags
-		 * We used to do some version comparisons and use of stripos for PHP5,
-		 * but it is dog slow compared to these simplified non-capturing
+		 * We used to do some version comparisons and use of stripos for PHP5, 
+		 * but it is dog slow compared to these simplified non-capturing 
 		 * preg_match(), especially if the pattern exists in the string
 		 */
 		do
@@ -388,7 +388,7 @@ class CI_Security {
 		 *
 		 * Similar to above, only instead of looking for
 		 * tags it looks for PHP and JavaScript commands
-		 * that are disallowed. Rather than removing the
+		 * that are disallowed.  Rather than removing the
 		 * code, it simply converts the parenthesis to entities
 		 * rendering the code un-executable.
 		 *
@@ -405,11 +405,11 @@ class CI_Security {
 
 		/*
 		 * Images are Handled in a Special Way
-		 * - Essentially, we want to know that after all of the character
-		 * conversion is done whether any unwanted, likely XSS, code was found.
+		 * - Essentially, we want to know that after all of the character 
+		 * conversion is done whether any unwanted, likely XSS, code was found.  
 		 * If not, we return TRUE, as the image is clean.
-		 * However, if the string post-conversion does not matched the
-		 * string post-removal of XSS, then it fails, as there was unwanted XSS
+		 * However, if the string post-conversion does not matched the 
+		 * string post-removal of XSS, then it fails, as there was unwanted XSS 
 		 * code found and removed/changed during processing.
 		 */
 
@@ -457,7 +457,7 @@ class CI_Security {
 	 *
 	 * In some versions of PHP the native function does not work
 	 * when UTF-8 is the specified character set, so this gives us
-	 * a work-around. More info here:
+	 * a work-around.  More info here:
 	 * http://bugs.php.net/bug.php?id=25670
 	 *
 	 * NOTE: html_entity_decode() has a bug in some PHP versions when UTF-8 is the
@@ -475,10 +475,10 @@ class CI_Security {
 		// The reason we are not using html_entity_decode() by itself is because
 		// while it is not technically correct to leave out the semicolon
 		// at the end of an entity most browsers will still interpret the entity
-		// correctly. html_entity_decode() does not convert entities without
+		// correctly.  html_entity_decode() does not convert entities without
 		// semicolons, so we are left with our own little solution here. Bummer.
 
-		if (function_exists('html_entity_decode') &&
+		if (function_exists('html_entity_decode') && 
 			(strtolower($charset) != 'utf-8'))
 		{
 			$str = html_entity_decode($str, ENT_COMPAT, $charset);
@@ -542,7 +542,7 @@ class CI_Security {
 						"%3b",		// ;
 						"%3d"		// =
 					);
-
+		
 		if ( ! $relative_path)
 		{
 			$bad[] = './';
@@ -570,7 +570,7 @@ class CI_Security {
 	}
 
 	// --------------------------------------------------------------------
-
+	
 	/*
 	 * Remove Evil HTML Attributes (like evenhandlers and style)
 	 *
@@ -578,7 +578,7 @@ class CI_Security {
 	 * 	- Everything up until a space
 	 *		For example, everything between the pipes:
 	 *		<a |style=document.write('hello');alert('world');| class=link>
-	 * 	- Everything inside the quotes
+	 * 	- Everything inside the quotes 
 	 *		For example, everything between the pipes:
 	 *		<a |style="document.write('hello'); alert('world');"| class="link">
 	 *
@@ -594,12 +594,12 @@ class CI_Security {
 		if ($is_image === TRUE)
 		{
 			/*
-			 * Adobe Photoshop puts XML metadata into JFIF images,
+			 * Adobe Photoshop puts XML metadata into JFIF images, 
 			 * including namespacing, so we have to allow this for images.
 			 */
 			unset($evil_attributes[array_search('xmlns', $evil_attributes)]);
 		}
-
+		
 		do {
 			$str = preg_replace(
 				"#<(/?[^><]+?)([^A-Za-z\-])(".implode('|', $evil_attributes).")(\s*=\s*)([\"][^>]*?[\"]|[\'][^>]*?[\']|[^>]*?)([\s><])([><]*)#i",
@@ -607,10 +607,10 @@ class CI_Security {
 				$str, -1, $count
 			);
 		} while ($count);
-
+		
 		return $str;
 	}
-
+	
 	// --------------------------------------------------------------------
 
 	/**
@@ -627,7 +627,7 @@ class CI_Security {
 		$str = '&lt;'.$matches[1].$matches[2].$matches[3];
 
 		// encode captured opening or closing brace to prevent recursive vectors
-		$str .= str_replace(array('>', '<'), array('&gt;', '&lt;'),
+		$str .= str_replace(array('>', '<'), array('&gt;', '&lt;'), 
 							$matches[4]);
 
 		return $str;
@@ -649,7 +649,7 @@ class CI_Security {
 	protected function _js_link_removal($match)
 	{
 		$attributes = $this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]));
-
+		
 		return str_replace($match[1], preg_replace("#href=.*?(alert\(|alert&\#40;|javascript\:|livescript\:|mocha\:|charset\=|window\.|document\.|\.cookie|<script|<xss|base64\s*,)#si", "", $attributes), $match[0]);
 	}
 
@@ -669,7 +669,7 @@ class CI_Security {
 	protected function _js_img_removal($match)
 	{
 		$attributes = $this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]));
-
+		
 		return str_replace($match[1], preg_replace("#src=.*?(alert\(|alert&\#40;|javascript\:|livescript\:|mocha\:|charset\=|window\.|document\.|\.cookie|<script|<xss|base64\s*,)#si", "", $attributes), $match[0]);
 	}
 
@@ -729,13 +729,13 @@ class CI_Security {
 	}
 
 	// --------------------------------------------------------------------
-
+	
 	/**
 	 * Validate URL entities
 	 *
 	 * Called by xss_clean()
 	 *
-	 * @param 	string
+	 * @param 	string	
 	 * @return 	string
 	 */
 	protected function _validate_entities($str)
@@ -743,15 +743,15 @@ class CI_Security {
 		/*
 		 * Protect GET variables in URLs
 		 */
-
+		
 		 // 901119URL5918AMP18930PROTECT8198
-
+		
 		$str = preg_replace('|\&([a-z\_0-9\-]+)\=([a-z\_0-9\-]+)|i', $this->xss_hash()."\\1=\\2", $str);
 
 		/*
 		 * Validate standard character entities
 		 *
-		 * Add a semicolon if missing. We do this to enable
+		 * Add a semicolon if missing.  We do this to enable
 		 * the conversion of entities to ASCII later.
 		 *
 		 */
@@ -769,7 +769,7 @@ class CI_Security {
 		 * Un-Protect GET variables in URLs
 		 */
 		$str = str_replace($this->xss_hash(), '&', $str);
-
+		
 		return $str;
 	}
 
@@ -794,7 +794,7 @@ class CI_Security {
 		{
 			$str = preg_replace("#".$key."#i", $val, $str);
 		}
-
+		
 		return $str;
 	}
 
@@ -809,16 +809,16 @@ class CI_Security {
 	{
 		if ($this->_csrf_hash == '')
 		{
-			// If the cookie exists we will use it's value.
+			// If the cookie exists we will use it's value.  
 			// We don't necessarily want to regenerate it with
-			// each page load since a page could contain embedded
+			// each page load since a page could contain embedded 
 			// sub-pages causing this feature to fail
-			if (isset($_COOKIE[$this->_csrf_cookie_name]) &&
+			if (isset($_COOKIE[$this->_csrf_cookie_name]) && 
 				$_COOKIE[$this->_csrf_cookie_name] != '')
 			{
 				return $this->_csrf_hash = $_COOKIE[$this->_csrf_cookie_name];
 			}
-
+			
 			return $this->_csrf_hash = md5(uniqid(rand(), TRUE));
 		}
 
diff --git a/system/core/URI.php b/system/core/URI.php
index 94fac59ac..d56548654 100644
--- a/system/core/URI.php
+++ b/system/core/URI.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -36,7 +36,7 @@ class CI_URI {
 	/**
 	 * Constructor
 	 *
-	 * Simply globalizes the $RTR object. The front
+	 * Simply globalizes the $RTR object.  The front
 	 * loads the Router class early on so it's not available
 	 * normally as other classes are.
 	 *
@@ -85,7 +85,7 @@ class CI_URI {
 			}
 
 			// No PATH_INFO?... What about QUERY_STRING?
-			$path = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : @getenv('QUERY_STRING');
+			$path =  (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : @getenv('QUERY_STRING');
 			if (trim($path, '/') != '')
 			{
 				$this->_set_uri_string($path);
@@ -251,7 +251,7 @@ class CI_URI {
 	 */
 	function _remove_url_suffix()
 	{
-		if ($this->config->item('url_suffix') != "")
+		if  ($this->config->item('url_suffix') != "")
 		{
 			$this->uri_string = preg_replace("|".preg_quote($this->config->item('url_suffix'))."$|", "", $this->uri_string);
 		}
@@ -285,7 +285,7 @@ class CI_URI {
 	 * Re-index Segments
 	 *
 	 * This function re-indexes the $this->segment array so that it
-	 * starts at 1 rather than 0. Doing so makes it simpler to
+	 * starts at 1 rather than 0.  Doing so makes it simpler to
 	 * use functions like $this->uri->segment(n) since there is
 	 * a 1:1 relationship between the segment array and the actual segments.
 	 *
@@ -323,7 +323,7 @@ class CI_URI {
 	 * Fetch a URI "routed" Segment
 	 *
 	 * This function returns the re-routed URI segment (assuming routing rules are used)
-	 * based on the number provided. If there is no routing this function returns the
+	 * based on the number provided.  If there is no routing this function returns the
 	 * same result as $this->segment()
 	 *
 	 * @access	public
@@ -425,7 +425,7 @@ class CI_URI {
 
 		$i = 0;
 		$lastval = '';
-		$retval = array();
+		$retval  = array();
 		foreach ($segments as $seg)
 		{
 			if ($i % 2)
diff --git a/system/core/Utf8.php b/system/core/Utf8.php
index 738d7e9d8..2a27d1f35 100644
--- a/system/core/Utf8.php
+++ b/system/core/Utf8.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *