Util.php

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<?php
declare(strict_types=1);
 
namespace ILIAS\Filesystem\Provider\FlySystem;
 
class Util extends \League\Flysystem\Util
{
 
    public static function normalizeRelativePath($path)
    {
        $path = preg_replace("#\\\\(?!['\\\])#m", '/', $path); // this only replaces backslashes
        $path = static::removeFunkyWhiteSpace($path);
        $parts = [];
 
        foreach (explode('/', $path) as $part) {
            switch ($part) {
                case '':
                case '.':
                    break;
 
                case '..':
                    if (empty($parts)) {
                        throw new \LogicException(
                            'Path is outside of the defined root, path: [' . $path . ']'
                        );
                    }
                    array_pop($parts);
                    break;
 
                default:
                    $parts[] = $part;
                    break;
            }
        }
 
        $path = implode('/', $parts);
 
        return $path;
    }
 
}