anchor.diff:  %% method rule is '*', which is the default, all
   %% request method will bind. It allows us to make rules
   %% depending on HTTP method.
  -bind_method(?MATCH_ALL, _Method) ->
  +bind_method(?MATCH_ALL, _Method ) ->
       true;
   bind_method({bind, Method}, Method) ->
       true;
  
positive.code:                                 iolist_to_binary(V2);
                              V2 -> V2
                          end;
                      _ ->
                          
                          V
                  end,
                  [V1|Acc]
  
negative.code:     case Value of
          <<":", Var/binary>> ->
              get_var(Var, Bindings, Value);
          <<"*">> ->
              get_var(Value, Bindings, Value);
          _ when is_list(Value) ->
              Value1 = lists:foldr(fun(V, Acc) ->
                  V1 = case V of
  