anchor.diff:  %%====================================================================
   
   %%--------------------------------------------------------------------
  -%% Function: 
  +%% Function:
   %%           KeyValList = list() of {Key, Val}
   %%           Key, Val = term()
  -%% Descrip.: 
  -%% Returns : 
  +%% Descrip.:
  +%% Returns :
   %%--------------------------------------------------------------------
   new() ->
       [].
  
positive.code: %%           ContactParam = contact_param record()
  %%           Key          = term(), is treated as case insensetive
  %% Descrip.: find the Key-Val pair to remove from DB
  %% Returns : 
  %%--------------------------------------------------------------------
  rm(DB, Key) ->
      lists:keydelete(Key, 1, DB).
      
  
  
  test() ->
      
      ok.
  
  %%====================================================================
  %% Behaviour functions
  %%====================================================================
  
  %%--------------------------------------------------------------------
  %% Function: 
  %% Descrip.: 
  %% Returns : 
  %%--------------------------------------------------------------------
  
  %%====================================================================
  
negative.code: %%--------------------------------------------------------------------
  %% Function: add(DB, Key, Value)
  %%           add(DB, Key)
  %%           DB    =
  %%           Key   = term()
  %%           Value = term()
  %% Descrip.: add new entry to DB.
  