diff --git a/include/ndnboost/regex/pattern_except.hpp b/include/ndnboost/regex/pattern_except.hpp
new file mode 100644
index 0000000..7ec0d45
--- /dev/null
+++ b/include/ndnboost/regex/pattern_except.hpp
@@ -0,0 +1,100 @@
+/*
+ *
+ * Copyright (c) 1998-2002
+ * John Maddock
+ *
+ * Use, modification and distribution are subject to the 
+ * Boost Software License, Version 1.0. (See accompanying file 
+ * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ *
+ */
+ 
+ /*
+  *   LOCATION:    see http://www.boost.org for most recent version.
+  *   FILE         pattern_except.hpp
+  *   VERSION      see <ndnboost/version.hpp>
+  *   DESCRIPTION: Declares pattern-matching exception classes.
+  */
+
+#ifndef NDNBOOST_RE_PAT_EXCEPT_HPP
+#define NDNBOOST_RE_PAT_EXCEPT_HPP
+
+#ifndef NDNBOOST_REGEX_CONFIG_HPP
+#include <ndnboost/regex/config.hpp>
+#endif
+
+#include <stdexcept>
+#include <cstddef>
+#include <ndnboost/regex/v4/error_type.hpp>
+
+namespace ndnboost{
+
+#ifdef NDNBOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable: 4103)
+#endif
+#ifdef NDNBOOST_HAS_ABI_HEADERS
+#  include NDNBOOST_ABI_PREFIX
+#endif
+#ifdef NDNBOOST_MSVC
+#pragma warning(pop)
+#endif
+
+#ifdef NDNBOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable : 4275)
+#endif
+class NDNBOOST_REGEX_DECL regex_error : public std::runtime_error
+{
+public:
+   explicit regex_error(const std::string& s, regex_constants::error_type err = regex_constants::error_unknown, std::ptrdiff_t pos = 0);
+   explicit regex_error(regex_constants::error_type err);
+   ~regex_error() throw();
+   regex_constants::error_type code()const
+   { return m_error_code; }
+   std::ptrdiff_t position()const
+   { return m_position; }
+   void raise()const;
+private:
+   regex_constants::error_type m_error_code;
+   std::ptrdiff_t m_position;
+};
+
+typedef regex_error bad_pattern;
+typedef regex_error bad_expression;
+
+namespace re_detail{
+
+NDNBOOST_REGEX_DECL void NDNBOOST_REGEX_CALL raise_runtime_error(const std::runtime_error& ex);
+
+template <class traits>
+void raise_error(const traits& t, regex_constants::error_type code)
+{
+   (void)t;  // warning suppression
+   std::runtime_error e(t.error_string(code));
+   ::ndnboost::re_detail::raise_runtime_error(e);
+}
+
+}
+
+#ifdef NDNBOOST_MSVC
+#pragma warning(pop)
+#endif
+
+#ifdef NDNBOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable: 4103)
+#endif
+#ifdef NDNBOOST_HAS_ABI_HEADERS
+#  include NDNBOOST_ABI_SUFFIX
+#endif
+#ifdef NDNBOOST_MSVC
+#pragma warning(pop)
+#endif
+
+} // namespace ndnboost
+
+#endif
+
+
+