diff -r ef13597d249a -r 261b4701405d lemon/lemon_reader.h
--- a/lemon/lemon_reader.h	Tue Mar 27 09:23:33 2007 +0000
+++ b/lemon/lemon_reader.h	Fri Mar 30 14:17:28 2007 +0000
@@ -1951,16 +1951,16 @@
     ///
     /// Add an attribute reader command for the reader.
     template <typename Value>
-    AttributeReader& readAttribute(const std::string& id, Value& value) {
+    AttributeReader& readAttribute(const std::string& label, Value& value) {
       return readAttribute<typename Traits::template Reader<Value> >
-	(id, value);
+	(label, value);
     }
 
     /// \brief Add an attribute reader command for the reader.
     ///
     /// Add an attribute reader command for the reader.
     template <typename ItemReader, typename Value>
-    AttributeReader& readAttribute(std::string label, Value& value,
+    AttributeReader& readAttribute(const std::string& label, Value& value,
 				   const ItemReader& ir = ItemReader()) {
       checkConcept<_reader_bits::ItemReader<Value>, ItemReader>();
       if (readers.find(label) != readers.end()) {
@@ -2012,7 +2012,7 @@
 	}	
       }
     }    
-
+    
     virtual void missing() {
       if (readers.empty()) return;
       ErrorMessage msg;