45         list($base, $refresh) = explode(' ', $base, 2);
47         if (preg_match('/(\d+)([dhm])/', $refresh, $match)) {
50             $refresh = max(600, $match[1] * $period[$match[2]]);
53             $refresh = 14400;
56         return array(trim($base), trim($title), $pos, $refresh);
99     function _directory($url, &$renderer, $path, $refresh) {  argument
105         if (($mtime != 0) && !$_REQUEST['purge'] && ($mtime > time() - $refresh)) {
161     function _codefile($url, &$renderer, $refresh) {  argument
164         $renderer->doc .= $this->_cached_geshi($url, $refresh);
179     function _cached_geshi($url, $refresh) {  argument
186                 ($mtime > time() - $refresh) &&