From 51768b9f7a582fee2ddd7a45da1fb2946a202cfe Mon Sep 17 00:00:00 2001
From: Andrzej Rybczak <electricityispower@gmail.com>
Date: Sat, 15 Aug 2015 11:51:19 +0200
Subject: [PATCH] regex filter: if string is invalid utf-8, ignore it

---
 src/regex_filter.h | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/src/regex_filter.h b/src/regex_filter.h
index a4abd1f4..a0bbabcf 100644
--- a/src/regex_filter.h
+++ b/src/regex_filter.h
@@ -56,13 +56,18 @@ inline Regex make(StringT &&s, boost::regex_constants::syntax_option_type flags)
 template <typename StringT>
 inline bool search(StringT &&s, const Regex &rx)
 {
-	return
-#	ifdef BOOST_REGEX_ICU
-	boost::u32regex_search
-#	else
-	boost::regex_search
-#	endif // BOOST_REGEX_ICU
-	(std::forward<StringT>(s), rx);
+	try {
+		return
+#		ifdef BOOST_REGEX_ICU
+		boost::u32regex_search
+#		else
+		boost::regex_search
+#		endif // BOOST_REGEX_ICU
+		(std::forward<StringT>(s), rx);
+	} catch (std::out_of_range &) {
+		// Invalid UTF-8 sequence, ignore the string.
+		return false;
+	}
 }
 
 template <typename T>