Merge upstream branch

31 files changed, 235 insertions, 51 deletions

diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
index 2e78a6660..7642a5270 100644
--- a/system/libraries/Cache/Cache.php
+++ b/system/libraries/Cache/Cache.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
@@ -39,20 +39,17 @@
 class CI_Cache extends CI_Driver_Library {
 
 	protected $valid_drivers 	= array(
-		'cache_apc', 'cache_file', 'cache_memcached', 'cache_dummy'
-	);
-
-	protected $_cache_path		= NULL;		// Path of cache files (if file-based cache)
-	protected $_adapter			= 'dummy';
+						'cache_apc',
+						'cache_file',
+						'cache_memcached',
+						'cache_dummy',
+						'cache_wincache'
+					);
+
+	protected $_cache_path		= NULL;	// Path of cache files (if file-based cache)
+	protected $_adapter		= 'dummy';
 	protected $_backup_driver;
 
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Constructor
-	 *
-	 * @param array
-	 */
 	public function __construct($config = array())
 	{
 		if ( ! empty($config))
diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index a3dd46978..c387a30fc 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php
index fcd55da39..c9767e401 100644
--- a/system/libraries/Cache/drivers/Cache_dummy.php
+++ b/system/libraries/Cache/drivers/Cache_dummy.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
index a960730d7..c0be0def4 100644
--- a/system/libraries/Cache/drivers/Cache_file.php
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index ffe6f2ff7..b8f2d7e4c 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_wincache.php b/system/libraries/Cache/drivers/Cache_wincache.php
new file mode 100644
index 000000000..df619d4e6
--- /dev/null
+++ b/system/libraries/Cache/drivers/Cache_wincache.php
@@ -0,0 +1,165 @@
+<?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:
+ * 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) 2006 - 2012 EllisLab, Inc.
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 3.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Wincache Caching Class
+ *
+ * Read more about Wincache functions here:
+ * http://www.php.net/manual/en/ref.wincache.php
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Core
+ * @author		Mike Murkovic
+ * @link
+ */
+
+class CI_Cache_wincache extends CI_Driver {
+
+	/**
+	 * Get
+	 *
+	 * Look for a value in the cache. If it exists, return the data,
+	 * if not, return FALSE
+	 *
+	 * @param	string
+	 * @return	mixed	value that is stored/FALSE on failure
+	 */
+	public function get($id)
+	{
+		$success = FALSE;
+		$data = wincache_ucache_get($id, $success);
+
+		// Success returned by reference from wincache_ucache_get()
+		return ($success) ? $data : FALSE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Save
+	 *
+	 * @param	string	Unique Key
+	 * @param	mixed	Data to store
+	 * @param	int	Length of time (in seconds) to cache the data
+	 * @return 	bool	true on success/false on failure
+	 */
+	public function save($id, $data, $ttl = 60)
+	{
+		return wincache_ucache_set($id, $data, $ttl);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Delete from Cache
+	 *
+	 * @param	mixed	unique identifier of the item in the cache
+	 * @param	bool	true on success/false on failure
+	 */
+	public function delete($id)
+	{
+		return wincache_ucache_delete($id);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Clean the cache
+	 *
+	 * @return	bool	false on failure/true on success
+	 */
+	public function clean()
+	{
+		return wincache_ucache_clear();
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Info
+	 *
+	 * @return	mixed	array on success, false on failure
+	 */
+	 public function cache_info()
+	 {
+		 return wincache_ucache_info(TRUE);
+	 }
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Get Cache Metadata
+	 *
+	 * @param	mixed	key to get cache metadata on
+	 * @return	mixed	array on success/false on failure
+	 */
+	public function get_metadata($id)
+	{
+		if ($stored = wincache_ucache_info(FALSE, $id))
+		{
+			$age = $stored['ucache_entries'][1]['age_seconds'];
+			$ttl = $stored['ucache_entries'][1]['ttl_seconds'];
+			$hitcount = $stored['ucache_entries'][1]['hitcount'];
+
+			return array(
+				'expire'    => $ttl - $age,
+				'hitcount'  => $hitcount,
+				'age'       => $age,
+				'ttl'       => $ttl
+			);
+		}
+
+		return FALSE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * is_supported()
+	 *
+	 * Check to see if WinCache is available on this system, bail if it isn't.
+	 *
+	 * @return	bool
+	 */
+	public function is_supported()
+	{
+		if ( ! extension_loaded('wincache'))
+		{
+			log_message('error', 'The Wincache PHP extension must be loaded to use Wincache Cache.');
+			return FALSE;
+		}
+
+		return TRUE;
+	}
+
+}
+
+/* End of file Cache_wincache.php */
+/* Location: ./system/libraries/Cache/drivers/Cache_wincache.php */
diff --git a/system/libraries/Calendar.php b/system/libraries/Calendar.php
index a05a7babf..6c04de8a2 100644
--- a/system/libraries/Calendar.php
+++ b/system/libraries/Calendar.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index 10b5362a5..60a1e52fe 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Driver.php b/system/libraries/Driver.php
index 4e8944311..9a073b336 100644
--- a/system/libraries/Driver.php
+++ b/system/libraries/Driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 8d839d0c9..f30fe40b6 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index 0b0618991..b29eb470e 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index bd8b7c216..9491f354c 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
@@ -53,6 +53,18 @@ class CI_Form_validation {
 	{
 		$this->CI =& get_instance();
 
+		// applies delimiters set in config file.
+		if (isset($rules['error_prefix']))
+		{
+			$this->_error_prefix = $rules['error_prefix'];
+			unset($rules['error_prefix']);
+		}
+		if (isset($rules['error_suffix']))
+		{
+			$this->_error_suffix = $rules['error_suffix'];
+			unset($rules['error_suffix']);
+		}
+		
 		// Validation rules can be stored in a config file.
 		$this->_config_rules = $rules;
 
@@ -60,7 +72,7 @@ class CI_Form_validation {
 		$this->CI->load->helper('form');
 
 		// Set the character encoding in MB.
-		if (function_exists('mb_internal_encoding'))
+		if (MB_ENABLED === TRUE)
 		{
 			mb_internal_encoding($this->CI->config->item('charset'));
 		}
@@ -938,7 +950,7 @@ class CI_Form_validation {
 			return FALSE;
 		}
 
-		if (function_exists('mb_strlen'))
+		if (MB_ENABLED === TRUE)
 		{
 			return ! (mb_strlen($str) < $val);
 		}
@@ -962,7 +974,7 @@ class CI_Form_validation {
 			return FALSE;
 		}
 
-		if (function_exists('mb_strlen'))
+		if (MB_ENABLED === TRUE)
 		{
 			return ! (mb_strlen($str) > $val);
 		}
@@ -986,7 +998,7 @@ class CI_Form_validation {
 			return FALSE;
 		}
 
-		if (function_exists('mb_strlen'))
+		if (MB_ENABLED === TRUE)
 		{
 			return (mb_strlen($str) == $val);
 		}
diff --git a/system/libraries/Ftp.php b/system/libraries/Ftp.php
index ab395b0a0..4d96c00cc 100644
--- a/system/libraries/Ftp.php
+++ b/system/libraries/Ftp.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 9826eabdd..86b77bf07 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Javascript.php b/system/libraries/Javascript.php
index 33df6007a..9ba93000b 100644
--- a/system/libraries/Javascript.php
+++ b/system/libraries/Javascript.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Log.php b/system/libraries/Log.php
index 944173fdd..955277acc 100644
--- a/system/libraries/Log.php
+++ b/system/libraries/Log.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index d07097223..c045ac0e2 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
index 35ac541e8..86b8d79fa 100644
--- a/system/libraries/Pagination.php
+++ b/system/libraries/Pagination.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Parser.php b/system/libraries/Parser.php
index 321248277..290e17fc0 100644
--- a/system/libraries/Parser.php
+++ b/system/libraries/Parser.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index 04216be5d..d84e5d3fc 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Session.php b/system/libraries/Session.php
index 104b88810..0b9d45b2a 100644
--- a/system/libraries/Session.php
+++ b/system/libraries/Session.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Table.php b/system/libraries/Table.php
index fb154e50f..99d001ce5 100644
--- a/system/libraries/Table.php
+++ b/system/libraries/Table.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * HTML Table Generating Class
  *
@@ -49,9 +47,21 @@ class CI_Table {
 	public $empty_cells		= '';
 	public $function		= FALSE;
 
-	public function __construct()
+	/**
+	 * Set the template from the table config file if it exists
+	 *
+	 * @param	array	$config	(default: array())
+	 * @return	void
+	 */
+	public function __construct($config = array())
 	{
-		log_message('debug', "Table Class Initialized");
+		log_message('debug', 'Table Class Initialized');
+
+		// initialize config
+		foreach ($config as $key => $val)
+		{
+			$this->template[$key] = $val;
+		}
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/libraries/Trackback.php b/system/libraries/Trackback.php
index 79a009133..be1de6f3f 100644
--- a/system/libraries/Trackback.php
+++ b/system/libraries/Trackback.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
@@ -141,7 +141,7 @@ class CI_Trackback {
 
 			$this->data['charset'] = ( ! isset($_POST['charset'])) ? 'auto' : strtoupper(trim($_POST['charset']));
 
-			if ($val != 'url' && function_exists('mb_convert_encoding'))
+			if ($val != 'url' && MB_ENABLED === TRUE)
 			{
 				$_POST[$val] = mb_convert_encoding($_POST[$val], $this->charset, $this->data['charset']);
 			}
diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index 46c73ef8b..65e30b089 100644
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Unit_test.php b/system/libraries/Unit_test.php
index 38d767c69..2eb8df356 100644
--- a/system/libraries/Unit_test.php
+++ b/system/libraries/Unit_test.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 89575c849..42664a587 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index cd644c00d..9109edd0f 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index 730a0fc49..32e2e523b 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Xmlrpcs.php b/system/libraries/Xmlrpcs.php
index 355d43f29..fc41444bc 100644
--- a/system/libraries/Xmlrpcs.php
+++ b/system/libraries/Xmlrpcs.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php
index 50e84920e..e33eb4e5a 100644
--- a/system/libraries/Zip.php
+++ b/system/libraries/Zip.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/libraries/javascript/Jquery.php b/system/libraries/javascript/Jquery.php
index 03574c66e..f30d7c639 100644
--- a/system/libraries/javascript/Jquery.php
+++ b/system/libraries/javascript/Jquery.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *