+function getoutput($blocks = [])
+{
+ $doc = ob_get_clean();
+
+ if (!empty($blocks['warn'])) {
+ $warn = '<p class="warn">[[warn]]</p>';
+ if ($offset = strpos($doc, '</h2>')) {
+ $doc = substr_replace($doc, "\n\n".$warn, $offset + 5, 0);
+ }
+ else {
+ $doc = $warn . "\n\n" . $doc;
+ }
+ }
+
+ # keep either login or logout parts depending on user level
+ global $User;
+ $hideclass = $User && property_exists($User, 'login') && $User->login ? 'logout' : 'login';
+ $doc = preg_replace('{\s*<([a-z]+) class="'.$hideclass.'">.*?</\1>}s', '', $doc);
+
+ return preg_replace_callback(
+ '{ \[\[ ([^] ]+) ([^]]*) \]\] }x',
+ function ($sub) use ($blocks) {
+ list ($placeholder, $name, $params) = $sub;
+ $html = $blocks[$name] ??
+ placeholder_include($name, explode(' ', $params));
+ if (empty($html) or $html[0] != '<') {
+ $html = "<span>$html</span>";
+ }
+ $attr = sprintf(' data-dyn="%s"', is_numeric($name) ? '' : $name.$params);
+ # contents with identifier in first tag
+ return preg_replace( '/(?=>)/', $attr, $html, 1);
+ },
+ $doc
+ );
+}
+
+# custom error handling
+
+define('DOCROOT', getcwd());
+set_include_path(implode(PATH_SEPARATOR, [ DOCROOT, __DIR__ ]));
+