23     public $paths = array();  variable in SI_Index
27     function __construct(Array $paths = null, Array $pids = null) {  argument
28         if ($paths === null) {
29             $paths = $pids = array();
31         $this->paths = $paths;
37         $this->paths[] = $path;
43         unset($this->paths[$key]);
49         return empty($this->paths);
54         uasort($this->paths, array($this, '_pathcmp'));
59         reset($this->paths);
65             $path = current($this->paths);
69             $key = key($this->paths);
79         return key($this->paths);
83         next($this->paths);
89         $valid = current($this->paths) !== false;
104         $fpaths = $this->paths;
112             $fpaths = array_intersect_key($this->paths, preg_grep('/' . $pid . '/', $this->pids));
180         $page_paths = $page_index->paths;
270             list($paths, $pids) = self::import_old($fn);
271             $index = new SI_Index($paths, $pids);