Merge pull request #891 from narfbg/develop-core-loader

Improve the core Loader library
diff --git a/system/core/Hooks.php b/system/core/Hooks.php
index 174adcb..e1ac58e 100755
--- a/system/core/Hooks.php
+++ b/system/core/Hooks.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 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:
@@ -45,28 +45,24 @@
 	 *
 	 * @var bool
 	 */
-	var $enabled		= FALSE;
+	public $enabled		= FALSE;
 	/**
 	 * List of all hooks set in config/hooks.php
 	 *
 	 * @var array
 	 */
-	var $hooks			= array();
+	public $hooks			= array();
 	/**
 	 * Determines wether hook is in progress, used to prevent infinte loops
 	 *
 	 * @var bool
 	 */
-	var $in_progress	= FALSE;
+	public $in_progress	= FALSE;
 
-	/**
-	 * Constructor
-	 *
-	 */
-	function __construct()
+	public function __construct()
 	{
 		$this->_initialize();
-		log_message('debug', "Hooks Class Initialized");
+		log_message('debug', 'Hooks Class Initialized');
 	}
 
 	// --------------------------------------------------------------------
@@ -74,24 +70,20 @@
 	/**
 	 * Initialize the Hooks Preferences
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _initialize()
+	private function _initialize()
 	{
 		$CFG =& load_class('Config', 'core');
 
 		// If hooks are not enabled in the config file
 		// there is nothing else to do
-
 		if ($CFG->item('enable_hooks') == FALSE)
 		{
 			return;
 		}
 
 		// Grab the "hooks" definition file.
-		// If there are no hooks, we're done.
-
 		if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/hooks.php'))
 		{
 			include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php');
@@ -101,7 +93,7 @@
 			include(APPPATH.'config/hooks.php');
 		}
 
-
+		// If there are no hooks, we're done.
 		if ( ! isset($hook) OR ! is_array($hook))
 		{
 			return;
@@ -116,13 +108,12 @@
 	/**
 	 * Call Hook
 	 *
-	 * Calls a particular hook
+	 * Calls a particular hook. Called by CodeIgniter.php.
 	 *
-	 * @access	private
 	 * @param	string	the hook name
 	 * @return	mixed
 	 */
-	function _call_hook($which = '')
+	public function _call_hook($which = '')
 	{
 		if ( ! $this->enabled OR ! isset($this->hooks[$which]))
 		{
@@ -151,11 +142,10 @@
 	 *
 	 * Runs a particular hook
 	 *
-	 * @access	private
 	 * @param	array	the hook details
 	 * @return	bool
 	 */
-	function _run_hook($data)
+	protected function _run_hook($data)
 	{
 		if ( ! is_array($data))
 		{
@@ -168,7 +158,6 @@
 
 		// If the script being called happens to have the same
 		// hook call within it a loop can happen
-
 		if ($this->in_progress == TRUE)
 		{
 			return;
@@ -254,7 +243,5 @@
 
 }
 
-// END CI_Hooks class
-
 /* End of file Hooks.php */
-/* Location: ./system/core/Hooks.php */
\ No newline at end of file
+/* Location: ./system/core/Hooks.php */
diff --git a/system/core/Lang.php b/system/core/Lang.php
index 5eb2801..088cb6c 100755
--- a/system/core/Lang.php
+++ b/system/core/Lang.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 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:
@@ -43,22 +43,17 @@
 	 *
 	 * @var array
 	 */
-	var $language	= array();
+	public $language	= array();
 	/**
 	 * List of loaded language files
 	 *
 	 * @var array
 	 */
-	var $is_loaded	= array();
+	public $is_loaded	= array();
 
-	/**
-	 * Constructor
-	 *
-	 * @access	public
-	 */
-	function __construct()
+	public function __construct()
 	{
-		log_message('debug', "Language Class Initialized");
+		log_message('debug', 'Language Class Initialized');
 	}
 
 	// --------------------------------------------------------------------
@@ -66,7 +61,6 @@
 	/**
 	 * Load a language file
 	 *
-	 * @access	public
 	 * @param	mixed	the name of the language file to be loaded. Can be an array
 	 * @param	string	the language (english, etc.)
 	 * @param	bool	return loaded array of translations
@@ -74,7 +68,7 @@
 	 * @param 	string	alternative path to look for language file
 	 * @return	mixed
 	 */
-	function load($langfile = '', $idiom = '', $return = FALSE, $add_suffix = TRUE, $alt_path = '')
+	public function load($langfile = '', $idiom = '', $return = FALSE, $add_suffix = TRUE, $alt_path = '')
 	{
 		$langfile = str_replace('.php', '', $langfile);
 
@@ -148,11 +142,10 @@
 	/**
 	 * Fetch a single line of text from the language array
 	 *
-	 * @access	public
 	 * @param	string	$line	the language line
 	 * @return	string
 	 */
-	function line($line = '')
+	public function line($line = '')
 	{
 		$value = ($line == '' OR ! isset($this->language[$line])) ? FALSE : $this->language[$line];
 
@@ -166,7 +159,6 @@
 	}
 
 }
-// END Language Class
 
 /* End of file Lang.php */
 /* Location: ./system/core/Lang.php */
diff --git a/system/core/Router.php b/system/core/Router.php
index 8cad868..d213195 100755
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 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:
@@ -44,62 +44,55 @@
 	 * Config class
 	 *
 	 * @var object
-	 * @access public
 	 */
-	var $config;
+	public $config;
 	/**
 	 * List of routes
 	 *
 	 * @var array
-	 * @access public
 	 */
-	var $routes			= array();
+	public $routes			= array();
 	/**
 	 * List of error routes
 	 *
 	 * @var array
-	 * @access public
 	 */
-	var $error_routes	= array();
+	public $error_routes	= array();
 	/**
 	 * Current class name
 	 *
 	 * @var string
-	 * @access public
 	 */
-	var $class			= '';
+	public $class			= '';
 	/**
 	 * Current method name
 	 *
 	 * @var string
-	 * @access public
 	 */
-	var $method			= 'index';
+	public $method			= 'index';
 	/**
 	 * Sub-directory that contains the requested controller class
 	 *
 	 * @var string
-	 * @access public
 	 */
-	var $directory		= '';
+	public $directory		= '';
 	/**
 	 * Default controller (and method if specific)
 	 *
 	 * @var string
-	 * @access public
 	 */
-	var $default_controller;
+	public $default_controller;
 
 	/**
 	 * Constructor
 	 *
 	 * Runs the route mapping function.
 	 */
-	function __construct()
+	public function __construct()
 	{
 		$this->config =& load_class('Config', 'core');
 		$this->uri =& load_class('URI', 'core');
-		log_message('debug', "Router Class Initialized");
+		log_message('debug', 'Router Class Initialized');
 	}
 
 	// --------------------------------------------------------------------
@@ -110,12 +103,11 @@
 	 * This function determines what should be served based on the URI request,
 	 * as well as any "routes" that have been set in the routing config file.
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _set_routing()
+	public 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();
@@ -157,7 +149,7 @@
 		// 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);
@@ -172,17 +164,10 @@
 			return $this->_set_default_controller();
 		}
 
-		// Do we need to remove the URL suffix?
-		$this->uri->_remove_url_suffix();
-
-		// Compile the segments into an array
-		$this->uri->_explode_segments();
-
-		// Parse any custom routing that may exist
-		$this->_parse_routes();
-
-		// Re-index the segment array so that it starts with 1 rather than 0
-		$this->uri->_reindex_segments();
+		$this->uri->_remove_url_suffix(); // Remove the URL suffix
+		$this->uri->_explode_segments(); // Compile the segments into an array
+		$this->_parse_routes(); // Parse any custom routing that may exist
+		$this->uri->_reindex_segments(); // Re-index the segment array so that it starts with 1 rather than 0
 	}
 
 	// --------------------------------------------------------------------
@@ -190,20 +175,18 @@
 	/**
 	 * Set the default controller
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _set_default_controller()
+	protected function _set_default_controller()
 	{
 		if ($this->default_controller === FALSE)
 		{
-			show_error("Unable to determine what should be displayed. A default route has not been specified in the routing file.");
+			show_error('Unable to determine what should be displayed. A default route has not been specified in the routing file.');
 		}
 		// Is the method being specified?
 		if (strpos($this->default_controller, '/') !== FALSE)
 		{
 			$x = explode('/', $this->default_controller);
-
 			$this->set_class($x[0]);
 			$this->set_method($x[1]);
 			$this->_set_request($x);
@@ -218,7 +201,7 @@
 		// re-index the routed segments array so it starts with 1 rather than 0
 		$this->uri->_reindex_segments();
 
-		log_message('debug', "No URI present. Default controller set.");
+		log_message('debug', 'No URI present. Default controller set.');
 	}
 
 	// --------------------------------------------------------------------
@@ -229,16 +212,15 @@
 	 * This function takes an array of URI segments as
 	 * input, and sets the current class/method
 	 *
-	 * @access	private
 	 * @param	array
 	 * @param	bool
 	 * @return	void
 	 */
-	function _set_request($segments = array())
+	protected function _set_request($segments = array())
 	{
 		$segments = $this->_validate_request($segments);
 
-		if (count($segments) == 0)
+		if (count($segments) === 0)
 		{
 			return $this->_set_default_controller();
 		}
@@ -269,13 +251,12 @@
 	 * Validates the supplied segments.  Attempts to determine the path to
 	 * the controller.
 	 *
-	 * @access	private
 	 * @param	array
 	 * @return	array
 	 */
-	function _validate_request($segments)
+	protected function _validate_request($segments)
 	{
-		if (count($segments) == 0)
+		if (count($segments) === 0)
 		{
 			return $segments;
 		}
@@ -301,7 +282,6 @@
 					if ( ! empty($this->routes['404_override']))
 					{
 						$x = explode('/', $this->routes['404_override']);
-
 						$this->set_directory('');
 						$this->set_class($x[0]);
 						$this->set_method(isset($x[1]) ? $x[1] : 'index');
@@ -320,7 +300,6 @@
 				if (strpos($this->default_controller, '/') !== FALSE)
 				{
 					$x = explode('/', $this->default_controller);
-
 					$this->set_class($x[0]);
 					$this->set_method($x[1]);
 				}
@@ -344,18 +323,16 @@
 
 
 		// 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']);
-
 			$this->set_class($x[0]);
 			$this->set_method(isset($x[1]) ? $x[1] : 'index');
 
 			return $x;
 		}
 
-
 		// Nothing else to do at this point but show a 404
 		show_404($segments[0]);
 	}
@@ -369,10 +346,9 @@
 	 * the config/routes.php file against the URI to
 	 * determine if the class/method need to be remapped.
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _parse_routes()
+	protected function _parse_routes()
 	{
 		// Turn the segment array into a URI string
 		$uri = implode('/', $this->uri->segments);
@@ -387,7 +363,7 @@
 		foreach ($this->routes as $key => $val)
 		{
 			// Convert wild-cards to RegEx
-			$key = str_replace(':any', '.+', str_replace(':num', '[0-9]+', $key));
+			$key = str_replace(array(':any', ':num'), array('.+', '[0-9]+'), $key);
 
 			// Does the RegEx match?
 			if (preg_match('#^'.$key.'$#', $uri))
@@ -412,11 +388,10 @@
 	/**
 	 * Set the class name
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function set_class($class)
+	public function set_class($class)
 	{
 		$this->class = str_replace(array('/', '.'), '', $class);
 	}
@@ -426,10 +401,9 @@
 	/**
 	 * Fetch the current class
 	 *
-	 * @access	public
 	 * @return	string
 	 */
-	function fetch_class()
+	public function fetch_class()
 	{
 		return $this->class;
 	}
@@ -439,11 +413,10 @@
 	/**
 	 *  Set the method name
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function set_method($method)
+	public function set_method($method)
 	{
 		$this->method = $method;
 	}
@@ -453,10 +426,9 @@
 	/**
 	 *  Fetch the current method
 	 *
-	 * @access	public
 	 * @return	string
 	 */
-	function fetch_method()
+	public function fetch_method()
 	{
 		if ($this->method == $this->fetch_class())
 		{
@@ -471,11 +443,10 @@
 	/**
 	 *  Set the directory name
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function set_directory($dir)
+	public function set_directory($dir)
 	{
 		$this->directory = str_replace(array('/', '.'), '', $dir).'/';
 	}
@@ -485,10 +456,9 @@
 	/**
 	 *  Fetch the sub-directory (if any) that contains the requested controller class
 	 *
-	 * @access	public
 	 * @return	string
 	 */
-	function fetch_directory()
+	public function fetch_directory()
 	{
 		return $this->directory;
 	}
@@ -498,11 +468,10 @@
 	/**
 	 *  Set the controller overrides
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	null
 	 */
-	function _set_overrides($routing)
+	public function _set_overrides($routing)
 	{
 		if ( ! is_array($routing))
 		{
@@ -526,9 +495,7 @@
 		}
 	}
 
-
 }
-// END Router Class
 
 /* End of file Router.php */
-/* Location: ./system/core/Router.php */
\ No newline at end of file
+/* Location: ./system/core/Router.php */