Fix 500 Unable to load format class

Fix #297

source/plg_system_t3/includes/admin/theme.php

@@ -14,6 +14,8 @@
 
 jimport('joomla.filesystem.file');
 jimport('joomla.filesystem.folder');
+// add new Less format class to work with joomla 3.3
+T3::import('format/less3.3');
 
 /**
  *

source/plg_system_t3/includes/format/less3.3.php

@@ -0,0 +1,137 @@
+<?php
+/** 
+ *------------------------------------------------------------------------------
+ * @package       T3 Framework for Joomla!
+ *------------------------------------------------------------------------------
+ * @copyright     Copyright (C) 2004-2013 JoomlArt.com. All Rights Reserved.
+ * @license       GNU General Public License version 2 or later; see LICENSE.txt
+ * @authors       JoomlArt, JoomlaBamboo, (contribute to this project at github 
+ *                & Google group to become co-author)
+ * @Google group: https://groups.google.com/forum/#!forum/t3fw
+ * @Link:         http://t3-framework.org 
+ *------------------------------------------------------------------------------
+ */
+
+namespace Joomla\Registry\Format;
+
+use Joomla\Registry\AbstractRegistryFormat;
+use stdClass;
+
+/**
+ * PHP class format handler for Registry
+ *
+ * @since  1.0
+ */
+class Less extends AbstractRegistryFormat
+{
+	/**
+	 * Converts a name/value pairs object into an LESS variables declaration
+	 */
+	public function objectToString($object, $params = array())
+	{
+		// Initialize variables.
+		$result = array();
+
+		// Iterate over the object to set the properties.
+		foreach (get_object_vars($object) as $key => $value)
+		{
+			// If the value is an object then we need to put it in a local section.
+			$result[] = $this->getKey($key) . ': ' . $this->getValue($value);
+		}
+
+		return implode("\n", $result);
+	}
+
+	/**
+	 * Converts an LESS variables string to name/value pair object
+	 */
+	public function stringToObject($data, array $options = array())   
+	{
+		// If no lines present just return the object.
+		if (empty($data))
+		{
+			return new stdClass;
+		}
+
+		// Initialize variables.
+		$obj = new stdClass;
+		$lines = explode("\n", $data);
+
+		// Process the lines.
+		foreach ($lines as $line)
+		{
+			// Trim any unnecessary whitespace.
+			$line = trim($line);
+
+			// Ignore empty lines and comments.
+			if (empty($line) || (substr($line, 0, 1) == '/') || (substr($line, 0, 1) == '*'))
+			{
+				continue;
+			}
+
+			// Check that an equal sign exists and is not the first character of the line.
+			if (!strpos($line, ':'))
+			{
+				// Maybe throw exception?
+				continue;
+			}
+
+			// Get the key and value for the line.
+			list ($key, $value) = explode(':', $line, 2);
+
+			// Validate the key.
+			if (preg_match('/@[^A-Z0-9_]/i', $key))
+			{
+				// Maybe throw exception?
+				continue;
+			}
+
+			// Validate the value.
+			//if (preg_match('/[^\(\)A-Z0-9_-];$/i', $value))
+			//{
+				// Maybe throw exception?
+			//	continue;
+			//}
+
+			// If the value is quoted then we assume it is a string.
+
+			$key = str_replace('@', '', $key);
+			$value = str_replace(';', '', $value);
+			$value = preg_replace('/\/\/(.*)/', '', $value);
+			$value = trim($value);
+			$obj->$key = $value;
+		}
+
+		// Cache the string to save cpu cycles -- thus the world :)
+
+		return $obj;
+	}
+
+	/**
+	 * Method to get a value in an INI format.
+	 *
+	 * @param   mixed  $value  The value to convert to INI format.
+	 *
+	 * @return  string  The value in INI format.
+	 *
+	 * @since   11.1
+	 */
+	protected function getValue($value)
+	{
+		return $value . ';';
+	}
+
+	/**
+	 * Method to get a value in an INI format.
+	 *
+	 * @param   mixed  $key
+	 *
+	 * @return  string  The value in INI format.
+	 *
+	 * @since   11.1
+	 */
+	protected function getKey($key)
+	{
+		return '@' . $key;
+	}
+}