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;
62 let get_current_proof status =
63 match status.proof_status with
64 | Incomplete_proof { proof = p } -> p
65 | _ -> raise (Statement_error "no ongoing proof")
67 let get_proof_metasenv status =
68 match status.proof_status with
70 | Proof (_, metasenv, _, _)
71 | Incomplete_proof { proof = (_, metasenv, _, _) }
72 | Intermediate metasenv ->
75 let get_stack status =
76 match status.proof_status with
77 | Incomplete_proof p -> p.stack
78 | Proof _ -> Continuationals.Stack.empty
81 let set_stack stack status =
82 match status.proof_status with
83 | Incomplete_proof p ->
84 { status with proof_status = Incomplete_proof { p with stack = stack } }
86 assert (Continuationals.Stack.is_empty stack);
90 let set_metasenv metasenv status =
92 match status.proof_status with
93 | No_proof -> Intermediate metasenv
94 | Incomplete_proof ({ proof = (uri, _, proof, ty) } as incomplete_proof) ->
96 { incomplete_proof with proof = (uri, metasenv, proof, ty) }
97 | Intermediate _ -> Intermediate metasenv
98 | Proof (_, metasenv', _, _) ->
99 assert (metasenv = metasenv');
102 { status with proof_status = proof_status }
104 let get_proof_context status goal =
105 match status.proof_status with
106 | Incomplete_proof { proof = (_, metasenv, _, _) } ->
107 let (_, context, _) = CicUtil.lookup_meta goal metasenv in
111 let get_proof_conclusion status goal =
112 match status.proof_status with
113 | Incomplete_proof { proof = (_, metasenv, _, _) } ->
114 let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
116 | _ -> raise (Statement_error "no ongoing proof")
118 let add_moo_content cmds status =
119 let content = status.moo_content_rev in
123 (* prerr_endline ("adding to moo command: " ^ GrafiteAstPp.pp_command cmd); *)
125 | GrafiteAst.Default _ ->
126 if List.mem cmd content then acc
131 (* prerr_endline ("new moo content: " ^ String.concat " " (List.map
132 GrafiteAstPp.pp_command content')); *)
133 { status with moo_content_rev = content' }
135 let get_option status name =
137 StringMap.find name status.options
138 with Not_found -> raise (Option_error (name, "not found"))
140 let set_option status name value =
142 let s = Str.global_replace (Str.regexp "//+") "/" s in
143 let s = Str.global_replace (Str.regexp "/$") "" s in
146 let types = [ "baseuri", (`String, mangle_dir); ] in
149 List.assoc name types
151 command_error (Printf.sprintf "Unknown option \"%s\"" name)
154 match ty_and_mangler with
155 | `String, f -> String (f value)
158 Int (int_of_string (f value))
160 command_error (Printf.sprintf "Not an integer value \"%s\"" value))
162 if StringMap.mem name status.options && name = "baseuri" then
163 command_error "Redefinition of 'baseuri' is forbidden."
165 { status with options = StringMap.add name value status.options }
168 let get_string_option status name =
169 match get_option status name with
171 | _ -> raise (Option_error (name, "not a string value"))
173 let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
175 let dump_status status =
176 HLog.message "status.aliases:\n";
177 HLog.message "status.proof_status:";
179 (match status.proof_status with
180 | No_proof -> "no proof\n"
181 | Incomplete_proof _ -> "incomplete proof\n"
182 | Proof _ -> "proof\n"
183 | Intermediate _ -> "Intermediate\n");
184 HLog.message "status.options\n";
185 StringMap.iter (fun k v ->
189 | Int i -> string_of_int i
191 HLog.message (k ^ "::=" ^ v)) status.options;
192 HLog.message "status.coercions\n";
193 HLog.message "status.objects:\n";
195 (fun u -> HLog.message (UriManager.string_of_uri u)) status.objects