1<?php
2/**
3 * SimplePie
4 *
5 * A PHP-Based RSS and Atom Feed Framework.
6 * Takes the hard work out of managing a complete RSS/Atom solution.
7 *
8 * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without modification, are
12 * permitted provided that the following conditions are met:
13 *
14 * 	* Redistributions of source code must retain the above copyright notice, this list of
15 * 	  conditions and the following disclaimer.
16 *
17 * 	* Redistributions in binary form must reproduce the above copyright notice, this list
18 * 	  of conditions and the following disclaimer in the documentation and/or other materials
19 * 	  provided with the distribution.
20 *
21 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
22 * 	  to endorse or promote products derived from this software without specific prior
23 * 	  written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
26 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
27 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
28 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 *
35 * @package SimplePie
36 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
37 * @author Ryan Parman
38 * @author Sam Sneddon
39 * @author Ryan McCue
40 * @link http://simplepie.org/ SimplePie
41 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
42 */
43
44
45/**
46 * PSR-4 implementation for SimplePie.
47 *
48 * After registering this autoload function with SPL, the following line
49 * would cause the function to attempt to load the \SimplePie\SimplePie class
50 * from /src/SimplePie.php:
51 *
52 *      new \SimplePie\SimplePie();
53 *
54 * @param string $class The fully-qualified class name.
55 * @return void
56 */
57spl_autoload_register(function ($class) {
58
59    // project-specific namespace prefix
60    $prefix = 'SimplePie\\';
61
62    // base directory for the namespace prefix
63    $base_dir = __DIR__ . '/src/';
64
65    // does the class use the namespace prefix?
66    $len = strlen($prefix);
67    if (strncmp($prefix, $class, $len) !== 0) {
68        // no, move to the next registered autoloader
69        return;
70    }
71
72    // get the relative class name
73    $relative_class = substr($class, $len);
74
75    // replace the namespace prefix with the base directory, replace namespace
76    // separators with directory separators in the relative class name, append
77    // with .php
78    $file = $base_dir . str_replace('\\', '/', $relative_class) . '.php';
79
80    // if the file exists, require it
81    if (file_exists($file)) {
82        require $file;
83    }
84});
85
86// autoloader
87spl_autoload_register(array(new SimplePie_Autoloader(), 'autoload'));
88
89if (!class_exists('SimplePie'))
90{
91	trigger_error('Autoloader not registered properly', E_USER_ERROR);
92}
93
94/**
95 * Autoloader class
96 *
97 * @package SimplePie
98 * @subpackage API
99 */
100class SimplePie_Autoloader
101{
102	protected $path;
103
104	/**
105	 * Constructor
106	 */
107	public function __construct()
108	{
109		$this->path = dirname(__FILE__) . DIRECTORY_SEPARATOR . 'library';
110	}
111
112	/**
113	 * Autoloader
114	 *
115	 * @param string $class The name of the class to attempt to load.
116	 */
117	public function autoload($class)
118	{
119		// Only load the class if it starts with "SimplePie"
120		if (strpos($class, 'SimplePie') !== 0)
121		{
122			return;
123		}
124
125		$filename = $this->path . DIRECTORY_SEPARATOR . str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
126		include $filename;
127	}
128}
129