From e03e143177178f4d41e36a90e6306785002987c4 Mon Sep 17 00:00:00 2001
From: Gunnar Beutner <gunnar@beutner.name>
Date: Sat, 20 Dec 2014 09:48:18 +0100
Subject: [PATCH] Report error for invalid escape sequences

fixes #7910
---
 lib/config/config_lexer.ll | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/lib/config/config_lexer.ll b/lib/config/config_lexer.ll
index a32163fdd..15efe4b10 100644
--- a/lib/config/config_lexer.ll
+++ b/lib/config/config_lexer.ll
@@ -89,7 +89,7 @@ do {							\
 
 	if (result > 0xff) {
 		/* error, constant is out-of-bounds */
-		BOOST_THROW_EXCEPTION(ScriptError("Constant is out of bounds: " + String(yytext), DebugInfoRange(yyextra->m_LocationBegin, *yylloc)));
+		BOOST_THROW_EXCEPTION(ScriptError("Constant is out of bounds: " + String(yytext), *yylloc));
 	}
 
 	yyextra->m_LexBuffer << static_cast<char>(result);
@@ -99,7 +99,7 @@ do {							\
 	/* generate error - bad escape sequence; something
 	 * like '\48' or '\0777777'
 	 */
-	BOOST_THROW_EXCEPTION(ScriptError("Bad escape sequence found: " + String(yytext), DebugInfoRange(yyextra->m_LocationBegin, *yylloc)));
+	BOOST_THROW_EXCEPTION(ScriptError("Bad escape sequence found: " + String(yytext), *yylloc));
 				}
 
 <STRING>\\n			{ yyextra->m_LexBuffer << "\n"; }
@@ -107,7 +107,10 @@ do {							\
 <STRING>\\r			{ yyextra->m_LexBuffer << "\r"; }
 <STRING>\\b			{ yyextra->m_LexBuffer << "\b"; }
 <STRING>\\f			{ yyextra->m_LexBuffer << "\f"; }
-<STRING>\\(.|\n)		{ yyextra->m_LexBuffer << yytext[1]; }
+<STRING>\\\n			{ yyextra->m_LexBuffer << yytext[1]; }
+<STRING>\\.			{
+	BOOST_THROW_EXCEPTION(ScriptError("Bad escape sequence found: " + String(yytext), *yylloc));
+				}
 
 <STRING>[^\\\n\"]+		{
 	char *yptr = yytext;