1 (* Copyright (C) 2004-2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
26 exception Option_error of string * string
27 exception Statement_error of string
28 exception Command_error of string
30 let command_error msg = raise (Command_error msg)
32 type incomplete_proof = {
33 proof: ProofEngineTypes.proof;
34 stack: Continuationals.Stack.t;
39 | Incomplete_proof of incomplete_proof
40 | Proof of ProofEngineTypes.proof
41 | Intermediate of Cic.metasenv
42 (* Status in which the proof could be while it is being processed by the
43 * engine. No status entering/exiting the engine could be in it. *)
45 module StringMap = Map.Make (String)
49 type options = option_value StringMap.t
50 let no_options = StringMap.empty
53 moo_content_rev: GrafiteMarshal.moo;
54 proof_status: proof_status;
56 objects: UriManager.uri list;
57 coercions: UriManager.uri list;
60 let get_current_proof status =
61 match status.proof_status with
62 | Incomplete_proof { proof = p } -> p
63 | _ -> raise (Statement_error "no ongoing proof")
65 let get_proof_metasenv status =
66 match status.proof_status with
68 | Proof (_, metasenv, _, _)
69 | Incomplete_proof { proof = (_, metasenv, _, _) }
70 | Intermediate metasenv ->
73 let get_stack status =
74 match status.proof_status with
75 | Incomplete_proof p -> p.stack
76 | Proof _ -> Continuationals.Stack.empty
79 let set_stack stack status =
80 match status.proof_status with
81 | Incomplete_proof p ->
82 { status with proof_status = Incomplete_proof { p with stack = stack } }
84 assert (Continuationals.Stack.is_empty stack);
88 let set_metasenv metasenv status =
90 match status.proof_status with
91 | No_proof -> Intermediate metasenv
92 | Incomplete_proof ({ proof = (uri, _, proof, ty) } as incomplete_proof) ->
94 { incomplete_proof with proof = (uri, metasenv, proof, ty) }
95 | Intermediate _ -> Intermediate metasenv
96 | Proof (_, metasenv', _, _) ->
97 assert (metasenv = metasenv');
100 { status with proof_status = proof_status }
102 let get_proof_context status goal =
103 match status.proof_status with
104 | Incomplete_proof { proof = (_, metasenv, _, _) } ->
105 let (_, context, _) = CicUtil.lookup_meta goal metasenv in
109 let get_proof_conclusion status goal =
110 match status.proof_status with
111 | Incomplete_proof { proof = (_, metasenv, _, _) } ->
112 let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
114 | _ -> raise (Statement_error "no ongoing proof")
116 let add_moo_content cmds status =
117 let content = status.moo_content_rev in
121 (* prerr_endline ("adding to moo command: " ^ GrafiteAstPp.pp_command cmd); *)
123 | GrafiteAst.Default _ ->
124 if List.mem cmd content then acc
129 (* prerr_endline ("new moo content: " ^ String.concat " " (List.map
130 GrafiteAstPp.pp_command content')); *)
131 { status with moo_content_rev = content' }
133 let get_option status name =
135 StringMap.find name status.options
136 with Not_found -> raise (Option_error (name, "not found"))
138 let set_option status name value =
140 let s = Str.global_replace (Str.regexp "//+") "/" s in
141 let s = Str.global_replace (Str.regexp "/$") "" s in
144 let types = [ "baseuri", (`String, mangle_dir); ] in
147 List.assoc name types
149 command_error (Printf.sprintf "Unknown option \"%s\"" name)
152 match ty_and_mangler with
153 | `String, f -> String (f value)
156 Int (int_of_string (f value))
158 command_error (Printf.sprintf "Not an integer value \"%s\"" value))
160 if StringMap.mem name status.options && name = "baseuri" then
161 command_error "Redefinition of 'baseuri' is forbidden."
163 { status with options = StringMap.add name value status.options }
166 let get_string_option status name =
167 match get_option status name with
169 | _ -> raise (Option_error (name, "not a string value"))
171 let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
173 let dump_status status =
174 HLog.message "status.aliases:\n";
175 HLog.message "status.proof_status:";
177 (match status.proof_status with
178 | No_proof -> "no proof\n"
179 | Incomplete_proof _ -> "incomplete proof\n"
180 | Proof _ -> "proof\n"
181 | Intermediate _ -> "Intermediate\n");
182 HLog.message "status.options\n";
183 StringMap.iter (fun k v ->
187 | Int i -> string_of_int i
189 HLog.message (k ^ "::=" ^ v)) status.options;
190 HLog.message "status.coercions\n";
191 HLog.message "status.objects:\n";
193 (fun u -> HLog.message (UriManager.string_of_uri u)) status.objects