From b589ea521d61761e56c3e968c75d8ac0fc3bcbf5 Mon Sep 17 00:00:00 2001
From: zeromus <zeromus@users.noreply.github.com>
Date: Thu, 21 Apr 2016 23:09:36 -0500
Subject: [PATCH] deterministically handle error in incomplete regexp escape
 sequence

---
 sqstdlib/sqstdrex.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sqstdlib/sqstdrex.cpp b/sqstdlib/sqstdrex.cpp
index 9390c2d..38a8508 100644
--- a/sqstdlib/sqstdrex.cpp
+++ b/sqstdlib/sqstdrex.cpp
@@ -153,6 +153,9 @@ static SQInteger sqstd_rex_charnode(SQRex *exp,SQBool isclass)
                      exp->_nodes[node].right = ce;
                      return node;
                 }
+            case 0:
+                sqstd_rex_error(exp,_SC("letter expected for argument of escape sequence"));
+                break;                
             case 'b':
             case 'B':
                 if(!isclass) {