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/
28 exception Option_error of string * string
29 exception Statement_error of string
30 exception Command_error of string
32 let command_error msg = raise (Command_error msg)
34 type incomplete_proof = {
35 proof: ProofEngineTypes.proof;
36 stack: Continuationals.Stack.t;
41 | Incomplete_proof of incomplete_proof
42 | Proof of ProofEngineTypes.proof
43 | Intermediate of Cic.metasenv
44 (* Status in which the proof could be while it is being processed by the
45 * engine. No status entering/exiting the engine could be in it. *)
47 module StringMap = Map.Make (String)
51 type options = option_value StringMap.t
52 let no_options = StringMap.empty
55 moo_content_rev: GrafiteMarshal.moo;
56 proof_status: proof_status;
58 objects: UriManager.uri list;
59 coercions: UriManager.uri list;
60 universe:Universe.universe;
63 let get_current_proof status =
64 match status.proof_status with
65 | Incomplete_proof { proof = p } -> p
67 | _ -> raise (Statement_error "no ongoing proof")
69 let get_proof_metasenv status =
70 match status.proof_status with
72 | Proof (_, metasenv, _, _)
73 | Incomplete_proof { proof = (_, metasenv, _, _) }
74 | Intermediate metasenv ->
77 let get_stack status =
78 match status.proof_status with
79 | Incomplete_proof p -> p.stack
80 | Proof _ -> Continuationals.Stack.empty
83 let set_stack stack status =
84 match status.proof_status with
85 | Incomplete_proof p ->
86 { status with proof_status = Incomplete_proof { p with stack = stack } }
88 assert (Continuationals.Stack.is_empty stack);
92 let set_metasenv metasenv status =
94 match status.proof_status with
95 | No_proof -> Intermediate metasenv
96 | Incomplete_proof ({ proof = (uri, _, proof, ty) } as incomplete_proof) ->
98 { incomplete_proof with proof = (uri, metasenv, proof, ty) }
99 | Intermediate _ -> Intermediate metasenv
100 | Proof (_, metasenv', _, _) ->
101 assert (metasenv = metasenv');
104 { status with proof_status = proof_status }
106 let get_proof_context status goal =
107 match status.proof_status with
108 | Incomplete_proof { proof = (_, metasenv, _, _) } ->
109 let (_, context, _) = CicUtil.lookup_meta goal metasenv in
113 let get_proof_conclusion status goal =
114 match status.proof_status with
115 | Incomplete_proof { proof = (_, metasenv, _, _) } ->
116 let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
118 | _ -> raise (Statement_error "no ongoing proof")
120 let add_moo_content cmds status =
121 let content = status.moo_content_rev in
125 (* prerr_endline ("adding to moo command: " ^ GrafiteAstPp.pp_command cmd); *)
127 | GrafiteAst.Default _ ->
128 if List.mem cmd content then acc
133 (* prerr_endline ("new moo content: " ^ String.concat " " (List.map
134 GrafiteAstPp.pp_command content')); *)
135 { status with moo_content_rev = content' }
137 let get_option status name =
139 StringMap.find name status.options
140 with Not_found -> raise (Option_error (name, "not found"))
142 let set_option status name value =
144 let s = Str.global_replace (Str.regexp "//+") "/" s in
145 let s = Str.global_replace (Str.regexp "/$") "" s in
148 let types = [ "baseuri", (`String, mangle_dir); ] in
151 List.assoc name types
153 command_error (Printf.sprintf "Unknown option \"%s\"" name)
156 match ty_and_mangler with
157 | `String, f -> String (f value)
160 Int (int_of_string (f value))
162 command_error (Printf.sprintf "Not an integer value \"%s\"" value))
164 if StringMap.mem name status.options && name = "baseuri" then
165 command_error "Redefinition of 'baseuri' is forbidden."
167 { status with options = StringMap.add name value status.options }
170 let get_string_option status name =
171 match get_option status name with
173 | _ -> raise (Option_error (name, "not a string value"))
175 let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
177 let dump_status status =
178 HLog.message "status.aliases:\n";
179 HLog.message "status.proof_status:";
181 (match status.proof_status with
182 | No_proof -> "no proof\n"
183 | Incomplete_proof _ -> "incomplete proof\n"
184 | Proof _ -> "proof\n"
185 | Intermediate _ -> "Intermediate\n");
186 HLog.message "status.options\n";
187 StringMap.iter (fun k v ->
191 | Int i -> string_of_int i
193 HLog.message (k ^ "::=" ^ v)) status.options;
194 HLog.message "status.coercions\n";
195 HLog.message "status.objects:\n";
197 (fun u -> HLog.message (UriManager.string_of_uri u)) status.objects