83             $dir = $this->namespacePath($this->namespace);
84             $this->createHierarchy($parent, $dir, $this->maxdepth);
97      * @param string $dir The directory relative to the page directory
101     protected function createHierarchy(AbstractNode $parent, string $dir, int $depth)  argument
105             $this->processNamespaces($parent, $dir, $depth);
110             $this->processPages($parent, $dir);
118      * @param string $dir Current directory path
122     protected function processNamespaces(AbstractNode $parent, string $dir, int $depth)  argument
127         $dirs = glob($base . $dir . '/*', GLOB_ONLYDIR);
130             $id = pathID($dir . '/' . $subdir);
136                 $this->createHierarchy($node, $dir . '/' . $subdir, $depth - 1);
168      * @param string $dir Current directory path
171     protected function processPages(AbstractNode $parent, string $dir)  argument
176         $files = glob($base . $dir . '/*.txt');
179             $id = pathID($dir . '/' . $file);
232         $dir = wikiFN($namespace . ':xxx');
233         $dir = substr($dir, strlen($base));
234         $dir = dirname($dir); // remove the 'xxx' part
235         if ($dir === '.') $dir = ''; // dirname returns '.' for root namespace
236         return $dir;