wp/wp-includes/SimplePie/autoloader.php
changeset 22 8c2e4d02f4ef
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21:48c4eec2b7e6 22:8c2e4d02f4ef
       
     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  */
       
    57 spl_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
       
    87 spl_autoload_register(array(new SimplePie_Autoloader(), 'autoload'));
       
    88 
       
    89 if (!class_exists('SimplePie'))
       
    90 {
       
    91 	exit('Autoloader not registered properly');
       
    92 }
       
    93 
       
    94 /**
       
    95  * Autoloader class
       
    96  *
       
    97  * @package SimplePie
       
    98  * @subpackage API
       
    99  */
       
   100 class 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 }