+++ /dev/null
-(* Copyright (C) 2004-2005, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-(* $Id$ *)
-
-exception Option_error of string * string
-exception Statement_error of string
-exception Command_error of string
-
-let command_error msg = raise (Command_error msg)
-
-type incomplete_proof = {
- proof: ProofEngineTypes.proof;
- stack: Continuationals.Stack.t;
-}
-
-type proof_status =
- | No_proof
- | Incomplete_proof of incomplete_proof
- | 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 = {
- moo_content_rev: GrafiteMarshal.moo;
- proof_status: proof_status;
- options: options;
- objects: UriManager.uri list;
- coercions: UriManager.uri list;
-}
-
-let get_current_proof status =
- match status.proof_status with
- | Incomplete_proof { proof = p } -> p
- | _ -> raise (Statement_error "no ongoing proof")
-
-let get_proof_metasenv status =
- match status.proof_status with
- | No_proof -> []
- | Proof (_, metasenv, _, _)
- | Incomplete_proof { proof = (_, metasenv, _, _) }
- | Intermediate metasenv ->
- metasenv
-
-let get_stack status =
- match status.proof_status with
- | Incomplete_proof p -> p.stack
- | Proof _ -> Continuationals.Stack.empty
- | _ -> assert false
-
-let set_stack stack status =
- match status.proof_status with
- | Incomplete_proof p ->
- { status with proof_status = Incomplete_proof { p with stack = stack } }
- | Proof _ ->
- assert (Continuationals.Stack.is_empty stack);
- status
- | _ -> assert false
-
-let set_metasenv metasenv status =
- let proof_status =
- match status.proof_status with
- | No_proof -> Intermediate metasenv
- | Incomplete_proof ({ proof = (uri, _, proof, ty) } as incomplete_proof) ->
- Incomplete_proof
- { incomplete_proof with proof = (uri, metasenv, proof, ty) }
- | Intermediate _ -> Intermediate metasenv
- | Proof (_, metasenv', _, _) ->
- assert (metasenv = metasenv');
- status.proof_status
- in
- { status with proof_status = proof_status }
-
-let get_proof_context status goal =
- match status.proof_status with
- | Incomplete_proof { proof = (_, metasenv, _, _) } ->
- let (_, context, _) = CicUtil.lookup_meta goal metasenv in
- context
- | _ -> []
-
-let get_proof_conclusion status goal =
- match status.proof_status with
- | Incomplete_proof { proof = (_, metasenv, _, _) } ->
- let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
- conclusion
- | _ -> raise (Statement_error "no ongoing proof")
-
-let add_moo_content cmds status =
- let content = status.moo_content_rev in
- let content' =
- List.fold_right
- (fun cmd acc ->
-(* prerr_endline ("adding to moo command: " ^ GrafiteAstPp.pp_command cmd); *)
- match cmd with
- | GrafiteAst.Default _ ->
- if List.mem cmd content then acc
- else cmd :: acc
- | _ -> cmd :: acc)
- cmds content
- in
-(* prerr_endline ("new moo content: " ^ String.concat " " (List.map
- GrafiteAstPp.pp_command content')); *)
- { status with moo_content_rev = content' }
-
-let get_option status name =
- try
- StringMap.find name status.options
- with Not_found -> raise (Option_error (name, "not found"))
-
-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); ] in
- let ty_and_mangler =
- try
- List.assoc name types
- with Not_found ->
- command_error (Printf.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 (Printf.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 }
-
-
-let get_string_option status name =
- match get_option status name with
- | String s -> s
- | _ -> raise (Option_error (name, "not a string value"))
-
-let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
-
-let dump_status status =
- HLog.message "status.aliases:\n";
- HLog.message "status.proof_status:";
- HLog.message
- (match status.proof_status with
- | No_proof -> "no proof\n"
- | Incomplete_proof _ -> "incomplete proof\n"
- | Proof _ -> "proof\n"
- | Intermediate _ -> "Intermediate\n");
- HLog.message "status.options\n";
- StringMap.iter (fun k v ->
- let v =
- match v with
- | String s -> s
- | Int i -> string_of_int i
- in
- HLog.message (k ^ "::=" ^ v)) status.options;
- HLog.message "status.coercions\n";
- HLog.message "status.objects:\n";
- List.iter
- (fun u -> HLog.message (UriManager.string_of_uri u)) status.objects
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