From 36918281c07054e93da4e0e9a376897335723b0b Mon Sep 17 00:00:00 2001
From: Twan van Laarhoven <twanvl@gmail.com>
Date: Fri, 10 Apr 2020 18:57:59 +0200
Subject: [PATCH] Fix: index out of bounds

---
 src/util/tagged_string.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/tagged_string.cpp b/src/util/tagged_string.cpp
index 66f35530..263650a2 100644
--- a/src/util/tagged_string.cpp
+++ b/src/util/tagged_string.cpp
@@ -347,7 +347,7 @@ size_t cursor_to_index(const String& str, size_t cursor, Movement dir) {
       if (str.GetChar(i) == _('<')) {
         String tag1 = tag_at(str, i);
         i = skip_tag(str, i);
-        if (str.GetChar(i) == _('<')) {
+        if (i < str.size() && str.GetChar(i) == _('<')) {
           String tag2 = tag_at(str, i);
           if (_("<") + tag2 + _(">") == anti_tag(tag1)) {
             return i;