Passing only string data to the render function.

See comment.

syntax.php

@@ -35,12 +35,11 @@ class syntax_plugin_ifauthex extends DokuWiki_Syntax_Plugin
  $matches = null;
  preg_match('/^<ifauth\b(.*?)>$/', $match, $matches);
  if (is_array($matches) && count($matches) > 0) {
- $authExpr = $matches[count($matches) - 1]; // the last group
- try {
- return array($state, auth_expr_parse($authExpr));
- } catch (Exception $e) {
- // Simply continue
- }
+ // The last group contains the expression.
+ // Can't already pre-parse because DokuWiki serializes the
+ // objects that are returned, but it doesn't know about our
+ // custom classes at this point.
+ return array($state, $matches[count($matches) - 1]);
  }
  return array($state, null);
  break;
@@ -63,6 +62,7 @@ class syntax_plugin_ifauthex extends DokuWiki_Syntax_Plugin
  return false;
  }
  try {
+ $exprOrMatch = auth_expr_parse($exprOrMatch);
  $this->_doRender = $exprOrMatch->evaluate();
  } catch (Exception $e) {
  $this->_doRender = null;