Todaymade\Daux\DauxHelper::getCleanPath PHP Method

    public static function getCleanPath($path)
    {
        $path = str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $path);
        $parts = array_filter(explode(DIRECTORY_SEPARATOR, $path), 'strlen');
        $absolutes = [];
        foreach ($parts as $part) {
            if ('.' == $part) {
                continue;
            }
            if ('..' == $part) {
                array_pop($absolutes);
            } else {
                $absolutes[] = $part;
            }
        }
        return implode(DIRECTORY_SEPARATOR, $absolutes);
    }

 private function findImage($src, $tag, Content $file, $callback)
 {
     //for protocol relative or http requests : keep the original one
     if (substr($src, 0, strlen('http')) === 'http' || substr($src, 0, strlen('//')) === '//') {
         return $src;
     }
     //Get the path to the file, relative to the root of the documentation
     $url = DauxHelper::getCleanPath(dirname($file->getUrl()) . '/' . $src);
     //Get any file corresponding to the right one
     $file = DauxHelper::getFile($this->tree, $url);
     if ($file === false) {
         return false;
     }
     $result = $callback($src, $this->getAttributes($tag), $file);
     return $result ?: $src;
 }