anchor.diff:  		    hash_loop({Index + 1, ExpHashTab, {[Elem|NewData], OldData}})
   	    end;
   	{quick_hash,{{FileName, FunName, Arity}, StartLine}} ->
  -	    %%refac_io:format("OldData:\n~p\n", [OldData]),
  +	    %%?debug("OldData:\n~p\n", [OldData]),
   	    OldData1 = lists:dropwhile(fun({{{M,F,A,_}, _,_,_},_}) ->
   					       {M,F,A} /={FileName, FunName, Arity}
   				       end, OldData),
  -	    %%refac_io:format("OldData1:\n~p\n", [OldData1]),
  +	    %%?debug("OldData1:\n~p\n", [OldData1]),
   	    DataNeeded=lists:takewhile(fun({{{M,F,A,_}, _,_,_},_}) ->
   					       {M,F,A} =={FileName, FunName, Arity}
   						   orelse
  
positive.code:     Cs2 = examine_clone_candidates(Cs, Thresholds, Tabs, CloneCheckerPid, 1),
      stop_clone_check_process(CloneCheckerPid),
      stop_ast_process(ASTPid),
      Time2 = time(),
  
      refac_code_search_utils:display_clone_result(Cs2, "Similar"),
      refac_io:format("Time used: \n~p\n", [{Time1, Time2}]).
      
  %% Get files that are deleted/changed/newly added since the last 
  %% run of the clone detection.
  
negative.code: 
  %% incremental clone detection.
  inc_sim_code_detection(Files, Thresholds, Tabs, SearchPaths, TabWidth) ->
     
      %%Time1 = time(),
      %% get file status change info.
      {FilesDeleted, FilesChanged, NewFiles} = get_file_status_info(Files, Tabs),
      
  