From fce013e113eb0587d7b8885020670e9ff9ae2d03 Mon Sep 17 00:00:00 2001
From: Jean-Michel Vedrine <vedrine@vedrine.org>
Date: Sun, 17 Dec 2017 14:01:45 +0100
Subject: Fix undefined property sign

---
 parser.php | 1 +
 1 file changed, 1 insertion(+)

(limited to 'parser.php')

diff --git a/parser.php b/parser.php
index 4a37832..c87ef64 100644
--- a/parser.php
+++ b/parser.php
@@ -1306,6 +1306,7 @@ class qtype_algebra_parser_bracket extends qtype_algebra_parser_term {
 
     function __construct($text) {
         parent::__construct(self::NARGS,self::$formats[$text],$text);
+        $this->_sign=''; 
         $this->_open=$text;
         switch($this->_open) {
             case '(':
-- 
cgit v1.2.3