(* *)
(******************************************************************************)
-val levels : Cic.metasenv -> Cic.context -> Cic.term -> int -> string
- (* level assignment testing function *)
+exception Discard
-val init : unit -> unit (* INIT database function *)
+type levels_spec = (string * bool * int) list
-val close : unit -> unit (* CLOSE database function *)
+val levels_of_term : Cic.metasenv -> Cic.context -> Cic.term -> levels_spec
-val locate : string -> string (* LOCATE query building function *)
+val string_of_levels : levels_spec -> string -> string
-val backward : Cic.metasenv -> Cic.context -> Cic.term -> int -> string
- (* BACKWARD query building function *)
+val set_log_file : string -> unit
+
+(* the callback function must return false iff the query must be skipped *)
+val set_confirm_query : (MathQL.query -> bool) -> unit
+
+val execute_query : MathQL.query -> MathQL.result
+
+val locate : string -> MathQL.result
+
+val backward : Cic.metasenv -> Cic.context -> Cic.term -> int -> MathQL.result
+
+val get_query_info : unit -> string list