1 files changed, 12 insertions, 1 deletions
diff --git a/cutl/xml/value-traits.txx b/cutl/xml/value-traits.txx
index 000d6be..4868dba 100644
--- a/cutl/xml/value-traits.txx
+++ b/cutl/xml/value-traits.txx
@@ -12,12 +12,23 @@ namespace cutl
   namespace xml
   {
     template <typename T>
+    T default_value_traits<T>::
+    parse (std::string s, const parser& p)
+    {
+      T r;
+      std::istringstream is (s);
+      if (!(is >> r && is.eof ()) )
+        throw parsing (p, "invalid value '" + s + "'");
+      return r;
+    }
+
+    template <typename T>
     std::string default_value_traits<T>::
     serialize (const T& v, const serializer& s)
     {
       std::ostringstream os;
       if (!(os << v))
-        throw serialization (s.output_name (), "invalid value");
+        throw serialization (s, "invalid value");
       return os.str ();
     }
   }