Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Validator\Util;
Chris@0: 
Chris@0: /**
Chris@0:  * Contains utility methods for dealing with property paths.
Chris@0:  *
Chris@0:  * For more extensive functionality, use Symfony's PropertyAccess component.
Chris@0:  *
Chris@0:  * @author Bernhard Schussek <bschussek@gmail.com>
Chris@0:  */
Chris@0: class PropertyPath
Chris@0: {
Chris@0:     /**
Chris@0:      * Appends a path to a given property path.
Chris@0:      *
Chris@0:      * If the base path is empty, the appended path will be returned unchanged.
Chris@0:      * If the base path is not empty, and the appended path starts with a
Chris@0:      * squared opening bracket ("["), the concatenation of the two paths is
Chris@0:      * returned. Otherwise, the concatenation of the two paths is returned,
Chris@0:      * separated by a dot (".").
Chris@0:      *
Chris@0:      * @param string $basePath The base path
Chris@0:      * @param string $subPath  The path to append
Chris@0:      *
Chris@0:      * @return string The concatenation of the two property paths
Chris@0:      */
Chris@0:     public static function append($basePath, $subPath)
Chris@0:     {
Chris@0:         if ('' !== (string) $subPath) {
Chris@0:             if ('[' === $subPath[0]) {
Chris@0:                 return $basePath.$subPath;
Chris@0:             }
Chris@0: 
Chris@0:             return '' !== (string) $basePath ? $basePath.'.'.$subPath : $subPath;
Chris@0:         }
Chris@0: 
Chris@0:         return $basePath;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Not instantiable.
Chris@0:      */
Chris@0:     private function __construct()
Chris@0:     {
Chris@0:     }
Chris@0: }