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libraries/f0f/autoloader/fof.php

@@ -0,0 +1,116 @@
+<?php
+/**
+ *  @package     FrameworkOnFramework
+ *  @subpackage  autoloader
+ * @copyright   Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
+ *  @license     GNU General Public License version 2, or later
+ */
+
+defined('F0F_INCLUDED') or die();
+
+/**
+ * The main class autoloader for F0F itself
+ *
+ * @package     FrameworkOnFramework
+ * @subpackage  autoloader
+ * @since       2.1
+ */
+class F0FAutoloaderFof
+{
+	/**
+	 * An instance of this autoloader
+	 *
+	 * @var   F0FAutoloaderFof
+	 */
+	public static $autoloader = null;
+
+	/**
+	 * The path to the F0F root directory
+	 *
+	 * @var   string
+	 */
+	public static $fofPath = null;
+
+	/**
+	 * Initialise this autoloader
+	 *
+	 * @return  F0FAutoloaderFof
+	 */
+	public static function init()
+	{
+		if (self::$autoloader == null)
+		{
+			self::$autoloader = new self;
+		}
+
+		return self::$autoloader;
+	}
+
+	/**
+	 * Public constructor. Registers the autoloader with PHP.
+	 */
+	public function __construct()
+	{
+		self::$fofPath = realpath(__DIR__ . '/../');
+
+		spl_autoload_register(array($this,'autoload_fof_core'));
+	}
+
+	/**
+	 * The actual autoloader
+	 *
+	 * @param   string  $class_name  The name of the class to load
+	 *
+	 * @return  void
+	 */
+	public function autoload_fof_core($class_name)
+	{
+		// Make sure the class has a F0F prefix
+		if (substr($class_name, 0, 3) != 'F0F')
+		{
+			return;
+		}
+
+		// Remove the prefix
+		$class = substr($class_name, 3);
+
+		// Change from camel cased (e.g. ViewHtml) into a lowercase array (e.g. 'view','html')
+		$class = preg_replace('/(\s)+/', '_', $class);
+		$class = strtolower(preg_replace('/(?<=\\w)([A-Z])/', '_\\1', $class));
+		$class = explode('_', $class);
+
+		// First try finding in structured directory format (preferred)
+		$path = self::$fofPath . '/' . implode('/', $class) . '.php';
+
+		if (@file_exists($path))
+		{
+			include_once $path;
+		}
+
+		// Then try the duplicate last name structured directory format (not recommended)
+
+		if (!class_exists($class_name, false))
+		{
+			reset($class);
+			$lastPart = end($class);
+			$path = self::$fofPath . '/' . implode('/', $class) . '/' . $lastPart . '.php';
+
+			if (@file_exists($path))
+			{
+				include_once $path;
+			}
+		}
+
+		// If it still fails, try looking in the legacy folder (used for backwards compatibility)
+
+		if (!class_exists($class_name, false))
+		{
+			$path = self::$fofPath . '/legacy/' . implode('/', $class) . '.php';
+
+			if (@file_exists($path))
+			{
+				include_once $path;
+			}
+		}
+	}
+}