-(******************************************************************************)
-(* *)
-(* PROJECT HELM *)
-(* *)
-(* Ferruccio Guidi <fguidi@cs.unibo.it> *)
-(* 30/04/2002 *)
-(* *)
-(* *)
-(******************************************************************************)
-
-
-val text_of_query : (string -> unit) -> MathQL.query -> string -> unit
-
-val text_of_result : (string -> unit) -> MathQL.result -> string -> unit
-
-val query_of_text : Lexing.lexbuf -> MathQL.query
-
-val result_of_text : Lexing.lexbuf -> MathQL.result