anchor.diff:      Cmd = "CMD: " ++ atom_to_list(?MODULE) ++ ":fun_extraction(" ++ "\"" ++ 
   	    FileName ++ "\", {" ++ integer_to_list(Line) ++ ", " ++ integer_to_list(Col) ++ "}," ++ 
   	      "{" ++ integer_to_list(Line1) ++ ", " ++ integer_to_list(Col1) ++ "}," ++ "\"" ++ NewFunName ++ "\","
  -														 ++ integer_to_list(TabWidth) ++ ").",
  +        ++ integer_to_list(TabWidth) ++ ").",
       case refac_util:is_fun_name(NewFunName) of
   	true -> ok;
   	false -> throw({error, "Invalid function name!"})
  
positive.code: 	false -> ok
      end.
  
  do_fun_extraction(FileName, AnnAST, ExpList, NewFunName, ParNames, VarsToExport, {EncFunName, EncFunArity, EncFunPos}) ->
      NewFunName1 = refac_syntax:atom(NewFunName),
      Pars = [refac_syntax:variable(P) || P <- ParNames],
      LastExprExportVars = [V || {V, _Pos} <- refac_util:get_var_exports(lists:last(ExpList))],
      ExpList1 = case VarsToExport -- LastExprExportVars of
  		   [] -> case ExpList of
  			     [E] -> case refac_syntax:type(E) of
  					match_expr -> [refac_syntax:match_expr_body(E)];
  					_ -> [E]
  				    end;
  			     _ -> ExpList
  			 end;
  		   _ -> case VarsToExport of
  			    [V] ->
  				E = refac_syntax:variable(V),
  				ExpList ++ [E];
  			    [_V| _Vs] ->
  				Elems = [refac_syntax:variable(V) || V <- VarsToExport],
  				ExpList ++ [refac_syntax:tuple(Elems)]
  			end
  	       end,
      Clause = refac_syntax:clause(Pars, [], ExpList1),
      NewFun = refac_syntax:function(NewFunName1, [Clause]),
      Forms = refac_syntax:form_list_elements(AnnAST),
  
negative.code:     Cmd = "CMD: " ++ atom_to_list(?MODULE) ++ ":fun_extraction(" ++ "\"" ++ 
  	    FileName ++ "\", {" ++ integer_to_list(Line) ++ ", " ++ integer_to_list(Col) ++ "}," ++ 
  	      "{" ++ integer_to_list(Line1) ++ ", " ++ integer_to_list(Col1) ++ "}," ++ "\"" ++ NewFunName ++ "\","
          ++ integer_to_list(TabWidth) ++ ").",
      {ok, {AnnAST, _Info}} = wrangler_ast_server:parse_annotate_file(FileName, true, [], TabWidth),
      ExpList = interface_api:pos_to_expr_list(AnnAST, Start, End),
      {ok, Fun} = interface_api:expr_to_fun(AnnAST, hd(ExpList)),
  