1 (* Copyright (C) 2000, 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://cs.unibo.it/helm/.
26 (**************************************************************************)
30 (* Andrea Asperti <asperti@cs.unibo.it> *)
33 (**************************************************************************)
36 (* the type cexpr is inspired by OpenMath. A few primitive constructors
37 have been added, in order to take into account some special features
38 of functional expressions. Most notably: case, let in, let rec, and
39 explicit substitutons *)
42 Symbol of string option * string * subst option * string option
43 (* h:xref, name, subst, definitionURL *)
44 | LocalVar of (string option) * string (* h:xref, name *)
45 | Meta of string option * string * meta_subst (* h:xref, name, meta_subst *)
46 | Num of string option * string (* h:xref, value *)
47 | Appl of string option * cexpr list (* h:xref, args *)
48 | Binder of string option * string * decl * cexpr
49 (* h:xref, name, decl, body *)
50 | Letin of string option * def * cexpr (* h:xref, def, body *)
51 | Letrec of string option * def list * cexpr (* h:xref, def list, body *)
52 | Case of string option * cexpr * ((string * cexpr) list)
53 (* h:xref, case_expr, named-pattern list *)
56 decl = string * cexpr (* name, type *)
58 def = string * cexpr (* name, body *)
60 subst = (UriManager.uri * cexpr) list
62 meta_subst = cexpr option list
67 let symbol_table = Hashtbl.create 503;;
70 Hashtbl.add symbol_table "cic:/Coq/Init/Logic/eq.ind#xpointer(1/1)"
71 (fun aid sid args acic2cexpr ->
73 (Some aid, (Symbol (Some sid, "eq",
74 None, Some "cic:/Coq/Init/Logic/eq.ind"))
75 :: List.map acic2cexpr (List.tl args)));;
77 Hashtbl.add symbol_table "cic:/Coq/Init/Logic_Type/eqT.ind#xpointer(1/1)"
78 (fun aid sid args acic2cexpr ->
80 (Some aid, (Symbol (Some sid, "eq",
81 None, Some "cic:/Coq/Init/Logic_Type/eqT.ind"))
82 :: List.map acic2cexpr (List.tl args)));;
85 Hashtbl.add symbol_table "cic:/Coq/Init/Logic/and.ind#xpointer(1/1)"
86 (fun aid sid args acic2cexpr ->
88 (Some aid, (Symbol (Some sid, "and",
89 None, Some "cic:/Coq/Init/Logic/and.ind"))
90 :: List.map acic2cexpr args));;
93 Hashtbl.add symbol_table "cic:/Coq/Init/Logic/or.ind#xpointer(1/1)"
94 (fun aid sid args acic2cexpr ->
96 (Some aid, (Symbol (Some sid, "or",
97 None, Some "cic:/Coq/Init/Logic/or.ind"))
98 :: List.map acic2cexpr args));;
101 Hashtbl.add symbol_table "cic:/Coq/Init/Logic/iff.con"
102 (fun aid sid args acic2cexpr ->
104 (Some aid, (Symbol (Some sid, "iff",
105 None, Some "cic:/Coq/Init/Logic/iff.con"))
106 :: List.map acic2cexpr args));;
109 Hashtbl.add symbol_table "cic:/Coq/Init/Logic/not.con"
110 (fun aid sid args acic2cexpr ->
112 (Some aid, (Symbol (Some sid, "not",
113 None, Some "cic:/Coq/Init/Logic/not.con"))
114 :: List.map acic2cexpr args));;
117 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rinv.con"
118 (fun aid sid args acic2cexpr ->
120 (Some aid, (Symbol (Some sid, "inv",
121 None, Some "cic:/Coq/Reals/Rdefinitions/Rinv.con"))
122 :: List.map acic2cexpr args));;
125 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Ropp.con"
126 (fun aid sid args acic2cexpr ->
128 (Some aid, (Symbol (Some sid, "opp",
129 None, Some "cic:/Coq/Reals/Rdefinitions/Rinv.con"))
130 :: List.map acic2cexpr args));;
133 Hashtbl.add symbol_table "cic:/Coq/Init/Logic/ex.ind#xpointer(1/1)"
134 (fun aid sid args acic2cexpr ->
135 match (List.tl args) with
136 [Cic.ALambda (_,Cic.Name n,s,t)] ->
138 (Some aid, "Exists", (n,acic2cexpr s),acic2cexpr t)
139 | _ -> raise Not_found);;
141 Hashtbl.add symbol_table "cic:/Coq/Init/Logic_Type/exT.ind#xpointer(1/1)"
142 (fun aid sid args acic2cexpr ->
143 match (List.tl args) with
144 [Cic.ALambda (_,Cic.Name n,s,t)] ->
146 (Some aid, "Exists", (n,acic2cexpr s),acic2cexpr t)
147 | _ -> raise Not_found);;
150 Hashtbl.add symbol_table "cic:/Coq/Init/Peano/le.ind#xpointer(1/1)"
151 (fun aid sid args acic2cexpr ->
153 (Some aid, (Symbol (Some sid, "leq",
154 None, Some "cic:/Coq/Init/Peano/le.ind"))
155 :: List.map acic2cexpr args));;
157 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rle.con"
158 (fun aid sid args acic2cexpr ->
160 (Some aid, (Symbol (Some sid, "leq",
161 None, Some "cic:/Coq/Reals/Rdefinitions/Rle.con"))
162 :: List.map acic2cexpr args));;
165 Hashtbl.add symbol_table "cic:/Coq/Init/Peano/lt.con"
166 (fun aid sid args acic2cexpr ->
168 (Some aid, (Symbol (Some sid, "lt",
169 None, Some "cic:/Coq/Init/Peano/lt.con"))
170 :: List.map acic2cexpr args));;
172 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rlt.con"
173 (fun aid sid args acic2cexpr ->
175 (Some aid, (Symbol (Some sid, "lt",
176 None, Some "cic:/Coq/Reals/Rdefinitions/Rlt.con"))
177 :: List.map acic2cexpr args));;
180 Hashtbl.add symbol_table "cic:/Coq/Init/Peano/ge.con"
181 (fun aid sid args acic2cexpr ->
183 (Some aid, (Symbol (Some sid, "geq",
184 None, Some "cic:/Coq/Init/Peano/ge.con"))
185 :: List.map acic2cexpr args));;
187 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rge.con"
188 (fun aid sid args acic2cexpr ->
190 (Some aid, (Symbol (Some sid, "geq",
191 None, Some "cic:/Coq/Reals/Rdefinitions/Rge.con"))
192 :: List.map acic2cexpr args));;
195 Hashtbl.add symbol_table "cic:/Coq/Init/Peano/gt.con"
196 (fun aid sid args acic2cexpr ->
198 (Some aid, (Symbol (Some sid, "gt",
199 None, Some "cic:/Coq/Init/Peano/gt.con"))
200 :: List.map acic2cexpr args));;
202 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rgt.con"
203 (fun aid sid args acic2cexpr ->
205 (Some aid, (Symbol (Some sid, "gt",
206 None, Some "cic:/Coq/Reals/Rdefinitions/Rgt.con"))
207 :: List.map acic2cexpr args));;
210 Hashtbl.add symbol_table "cic:/Coq/Init/Peano/plus.con"
211 (fun aid sid args acic2cexpr ->
213 (Some aid, (Symbol (Some sid, "plus",
214 None, Some "cic:/Coq/Init/Peano/plus.con"))
215 :: List.map acic2cexpr args));;
217 Hashtbl.add symbol_table "cic:/Coq/ZArith/fast_integer/Zplus.con"
218 (fun aid sid args acic2cexpr ->
220 (Some aid, (Symbol (Some sid, "plus",
221 None, Some "cic:/Coq/ZArith/fast_integer/Zplus.con"))
222 :: List.map acic2cexpr args));;
224 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rplus.con"
225 (fun aid sid args acic2cexpr ->
227 (Some aid, (Symbol (Some sid, "plus",
228 None, Some "cic:/Coq/Reals/Rdefinitions/Rplus.con"))
229 :: List.map acic2cexpr args));;
232 Hashtbl.add symbol_table "cic:/Coq/Init/Peano/mult.con"
233 (fun aid sid args acic2cexpr ->
235 (Some aid, (Symbol (Some sid, "times",
236 None, Some "cic:/Coq/Init/Peano/mult.con"))
237 :: List.map acic2cexpr args));;
240 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rmult.con"
241 (fun aid sid args acic2cexpr ->
243 (Some aid, (Symbol (Some sid, "times",
244 None, Some "cic:/Coq/Reals/Rdefinitions/Rmult.con"))
245 :: List.map acic2cexpr args));;
247 Hashtbl.add symbol_table "cic:/Coq/Arith/Minus/minus.con"
248 (fun aid sid args acic2cexpr ->
250 (Some aid, (Symbol (Some sid, "minus",
251 None, Some "cic:/Coq/Arith/Minus/mult.con"))
252 :: List.map acic2cexpr args));;
254 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rminus.con"
255 (fun aid sid args acic2cexpr ->
257 (Some aid, (Symbol (Some sid, "minus",
258 None, Some "cic:/Coq/Reals/Rdefinitions/Rminus.con"))
259 :: List.map acic2cexpr args));;
262 Hashtbl.add symbol_table "cic:/Coq/Reals/Rdefinitions/Rdiv.con"
263 (fun aid sid args acic2cexpr ->
265 (Some aid, (Symbol (Some sid, "div",
266 None, Some "cic:/Coq/Reals/Rdefinitions/Rdiv.con"))
267 :: List.map acic2cexpr args));;
282 let get_constructors uri i =
283 let inductive_types =
284 (match CicEnvironment.get_obj uri with
285 Cic.Constant _ -> assert false
286 | Cic.Variable _ -> assert false
287 | Cic.CurrentProof _ -> assert false
288 | Cic.InductiveDefinition (l,_,_) -> l
290 let (_,_,_,constructors) = List.nth inductive_types i in
294 exception NotImplemented;;
296 let acic2cexpr ids_to_inner_sorts t =
297 let rec acic2cexpr t =
298 let module C = Cic in
299 let module X = Xml in
300 let module U = UriManager in
301 let module C2A = Cic2acic in
305 | l -> Some (List.map (function (uri,t) -> (uri, acic2cexpr t)) l) in
307 C.ARel (id,idref,n,b) -> LocalVar (Some id,b)
308 | C.AVar (id,uri,subst) ->
309 Symbol (Some id, UriManager.name_of_uri uri,
310 make_subst subst, Some (UriManager.string_of_uri uri))
311 | C.AMeta (id,n,l) ->
316 | Some t -> Some (acic2cexpr t)
319 Meta (Some id,("?" ^ (string_of_int n)),l')
320 | C.ASort (id,s) -> Symbol (Some id,string_of_sort s,None,None)
321 | C.AImplicit _ -> raise NotImplemented
322 | C.AProd (id,n,s,t) ->
325 Appl (Some id, [Symbol (None, "arrow",None,None);
326 acic2cexpr s; acic2cexpr t])
329 (try Hashtbl.find ids_to_inner_sorts id
331 (* if the Prod does not have the sort, it means
332 that it has been generated by cic2content, and
333 thus is a statement *)
335 let binder = if sort = "Prop" then "Forall" else "Prod" in
336 let decl = (name, acic2cexpr s) in
337 Binder (Some id,binder,decl,acic2cexpr t))
338 | C.ACast (id,v,t) -> acic2cexpr v
339 | C.ALambda (id,n,s,t) ->
343 | Cic.Name name -> name) in
344 let decl = (name, acic2cexpr s) in
345 Binder (Some id,"Lambda",decl,acic2cexpr t)
346 | C.ALetIn (id,n,s,t) ->
348 Cic.Anonymous -> assert false
350 let def = (name, acic2cexpr s) in
351 Letin (Some id,def,acic2cexpr t))
352 | C.AAppl (aid,C.AConst (sid,uri,subst)::tl) ->
353 let uri_str = UriManager.string_of_uri uri in
355 (let f = Hashtbl.find symbol_table uri_str in
356 f aid sid tl acic2cexpr)
358 Appl (Some aid, Symbol (Some sid,UriManager.name_of_uri uri,
359 make_subst subst, Some uri_str)::List.map acic2cexpr tl))
360 | C.AAppl (aid,C.AMutInd (sid,uri,i,subst)::tl) ->
361 let inductive_types =
362 (match CicEnvironment.get_obj uri with
363 Cic.Constant _ -> assert false
364 | Cic.Variable _ -> assert false
365 | Cic.CurrentProof _ -> assert false
366 | Cic.InductiveDefinition (l,_,_) -> l
368 let (name,_,_,_) = List.nth inductive_types i in
369 let uri_str = UriManager.string_of_uri uri in
371 uri_str ^ "#xpointer(1/" ^ (string_of_int (i + 1)) ^ ")" in
373 (let f = Hashtbl.find symbol_table puri_str in
374 f aid sid tl acic2cexpr)
376 Appl (Some aid, Symbol (Some sid, name,
377 make_subst subst, Some uri_str)::List.map acic2cexpr tl))
379 Appl (Some id, List.map acic2cexpr li)
380 | C.AConst (id,uri,subst) ->
381 Symbol (Some id, UriManager.name_of_uri uri,
382 make_subst subst, Some (UriManager.string_of_uri uri))
383 | C.AMutInd (id,uri,i,subst) ->
384 let inductive_types =
385 (match CicEnvironment.get_obj uri with
386 Cic.Constant _ -> assert false
387 | Cic.Variable _ -> assert false
388 | Cic.CurrentProof _ -> assert false
389 | Cic.InductiveDefinition (l,_,_) -> l
391 let (name,_,_,_) = List.nth inductive_types i in
392 let uri_str = UriManager.string_of_uri uri in
393 Symbol (Some id, name, make_subst subst, Some uri_str)
394 | C.AMutConstruct (id,uri,i,j,subst) ->
395 let constructors = get_constructors uri i in
396 let (name,_) = List.nth constructors (j-1) in
397 let uri_str = UriManager.string_of_uri uri in
398 Symbol (Some id, name, make_subst subst, Some uri_str)
399 | C.AMutCase (id,uri,typeno,ty,te,patterns) ->
400 let constructors = get_constructors uri typeno in
402 List.map2 (fun c p -> (fst c, acic2cexpr p))
403 constructors patterns in
404 Case (Some id, acic2cexpr te, named_patterns)
405 | C.AFix (id, no, funs) ->
407 List.map (function (id1,n,_,_,bo) -> (n, acic2cexpr bo)) funs in
408 let (name,_) = List.nth defs no in
409 let body = LocalVar (None, name) in
410 Letrec (Some id, defs, body)
411 | C.ACoFix (id,no,funs) ->
413 List.map (function (id1,n,_,bo) -> (n, acic2cexpr bo)) funs in
414 let (name,_) = List.nth defs no in
415 let body = LocalVar (None, name) in
416 Letrec (Some id, defs, body) in