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