commit f0bf7ef40bf084b75193f2b5917ed4513abb72c9
Author: Tanmai Khanna <khanna.tanmai@gmail.com>
Date:   Fri Jun 26 18:27:55 2020 +0530

    try to fix segfault

diff --git a/apertium/transfer.cc b/apertium/transfer.cc
index 3edb69b..d200ddd 100644
--- a/apertium/transfer.cc
+++ b/apertium/transfer.cc
@@ -2735,9 +2735,12 @@ Transfer::applyWord(wstring const &word_str)
             {
               i++;
             }
-            else if(word_str[i] == L'^' && word_str[i-1] == L']' && word_str[i-2] == L']')
+            else if(i >= 4)
             {
-              break;
+              if(word_str[i] == L'^' && word_str[i-1] == L']' && word_str[i-2] == L']')
+              {
+                break;
+              }
             }
             
             i++;