-exception Not_implemented of string
-let not_implemented feature = raise (Not_implemented feature)
-
- (** exceptions whose content should be presented to the user *)
-exception Failure of string
-let error s = raise (Failure s)
-let warning s = prerr_endline ("MATITA WARNING:\t" ^ s)
-let debug_print s =
- if BuildTimeConf.debug then prerr_endline ("MATITA DEBUG:\t" ^ s)
-
-exception No_proof (** no current proof is available *)
-
-let untitled_con_uri = UriManager.uri_of_string "cic:/untitled.con"
-let untitled_def_uri = UriManager.uri_of_string "cic:/untitled.ind"
-
-class type observer =
- (* "observer" pattern *)
+open Printf
+
+ (** user hit the cancel button *)
+exception Cancel
+
+ (** statement invoked in the wrong context (e.g. tactic with no ongoing proof)
+ *)
+exception Statement_error of string
+let statement_error msg = raise (Statement_error msg)
+
+exception Command_error of string
+let command_error msg = raise (Command_error msg)
+
+ (** parameters are: option name, error message *)
+exception Option_error of string * string
+
+exception Unbound_identifier of string
+
+type proof_status =
+ | No_proof
+ | Incomplete_proof of ProofEngineTypes.status
+ | Proof of ProofEngineTypes.proof
+ | Intermediate of Cic.metasenv
+ (* Status in which the proof could be while it is being processed by the
+ * engine. No status entering/exiting the engine could be in it. *)
+
+module StringMap = Map.Make (String)
+
+type option_value =
+ | String of string
+ | Int of int
+type options = option_value StringMap.t
+let no_options = StringMap.empty
+
+type status = {
+ aliases: DisambiguateTypes.environment; (** disambiguation aliases *)
+ proof_status: proof_status;
+ options: options;
+ objects: (UriManager.uri * string) list;
+ (** in-scope objects, with their paths *)
+}
+
+let dump_status status =
+ MatitaLog.message "status.aliases:\n";
+ MatitaLog.message
+ (CicTextualParser2.EnvironmentP3.to_string status.aliases ^ "\n");
+ MatitaLog.message "status.proof_status:";
+ MatitaLog.message
+ (match status.proof_status with
+ | No_proof -> "no proof\n"
+ | Incomplete_proof _ -> "incomplete proof\n"
+ | Proof _ -> "proof\n"
+ | Intermediate _ -> "Intermediate\n");
+ MatitaLog.message "status.options\n";
+ StringMap.iter (fun k v ->
+ let v =
+ match v with
+ | String s -> s
+ | Int i -> string_of_int i
+ in
+ MatitaLog.message (k ^ "::=" ^ v)) status.options;
+ MatitaLog.message "status.coercions\n";
+ MatitaLog.message "status.objects:\n";
+ List.iter
+ (fun (u,_) ->
+ MatitaLog.message (UriManager.string_of_uri u)) status.objects
+
+
+let get_option status name =
+ try
+ StringMap.find name status.options
+ with Not_found -> raise (Option_error (name, "not found"))
+
+let get_string_option status name =
+ match get_option status name with
+ | String s -> s
+ | _ -> raise (Option_error (name, "not a string value"))
+
+let set_option status name value =
+ let mangle_dir s =
+ let s = Str.global_replace (Str.regexp "//+") "/" s in
+ let s = Str.global_replace (Str.regexp "/$") "" s in
+ s
+ in
+ let types =
+ [ "baseuri", (`String, mangle_dir);
+ "basedir", (`String, mangle_dir);
+ ]
+ in
+ let ty_and_mangler =
+ try
+ List.assoc name types
+ with Not_found -> command_error (sprintf "Unknown option \"%s\"" name)
+ in
+ let value =
+ match ty_and_mangler with
+ | `String, f -> String (f value)
+ | `Int, f ->
+ (try
+ Int (int_of_string (f value))
+ with Failure _ ->
+ command_error (sprintf "Not an integer value \"%s\"" value))
+ in
+ if StringMap.mem name status.options && name = "baseuri" then
+ command_error "Redefinition of 'baseuri' is forbidden."
+ else
+ { status with options = StringMap.add name value status.options }
+
+ (* subset of MatitaConsole.console methods needed by MatitaInterpreter *)
+class type console =