diff -r 82e19031c319 -r 84996003b01c mapstorage.cc
--- a/mapstorage.cc	Tue Apr 18 22:59:33 2006 +0000
+++ b/mapstorage.cc	Thu Apr 27 12:20:09 2006 +0000
@@ -268,6 +268,7 @@
       if (*it == "label")
       {
         //std::cout << "read id edgemap" << std::endl;
+        read_edge_id = true;
       }
       else
       {
@@ -366,6 +367,20 @@
     }
   }
 
+  // filter loop edges
+  for (EdgeIt e(graph); e != INVALID; ++e)
+  {
+    if (graph.source(e) == graph.target(e))
+    {
+      std::cerr << "Removed loop edge " << (*edgemap_storage["label"])[e]
+        << " (from " << (*nodemap_storage["label"])[graph.source(e)]
+        << ", to " << (*nodemap_storage["label"])[graph.target(e)] << ")."
+        << std::endl;
+
+      graph.erase(e);
+    }
+  }
+
   return 0;
 }