1 (* Copyright (C) 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/
31 let exc_located_wrapper f =
35 | Stdpp.Exc_located (_, End_of_file) -> raise End_of_file
36 | Stdpp.Exc_located (floc, Stream.Error msg) ->
37 raise (HExtlib.Localized (floc,CicNotationParser.Parse_error msg))
38 | Stdpp.Exc_located (floc, HExtlib.Localized(_,exn)) ->
39 raise (HExtlib.Localized
40 (floc,CicNotationParser.Parse_error (Printexc.to_string exn)))
41 | Stdpp.Exc_located (floc, exn) ->
42 raise (HExtlib.Localized
43 (floc,CicNotationParser.Parse_error (Printexc.to_string exn)))
45 let parse_statement grafite_parser lexbuf =
47 (fun () -> (Grammar.Entry.parse (Obj.magic grafite_parser) (Obj.magic lexbuf)))
49 let add_raw_attribute ~text t = N.AttributedTerm (`Raw text, t)
51 let default_associativity = Gramext.NonA
53 let mk_rec_corec ind_kind defs loc =
56 | (params,(N.Ident (name, None), ty),_,_) :: _ ->
57 let ty = match ty with Some ty -> ty | None -> N.Implicit `JustOne in
60 (fun var ty -> N.Binder (`Pi,var,ty)
66 let body = N.Ident (name,None) in
67 (loc, N.Theorem(`Definition, name, ty, Some (N.LetRec (ind_kind, defs, body)), `Regular))
69 let nmk_rec_corec ind_kind defs loc =
70 let loc,t = mk_rec_corec ind_kind defs loc in
74 let nnon_punct_of_punct = function
75 | G.Skip loc -> G.NSkip loc
76 | G.Unfocus loc -> G.NUnfocus loc
77 | G.Focus (loc,l) -> G.NFocus (loc,l)
80 type by_continuation =
82 | BYC_weproved of N.term * string option * N.term option
83 | BYC_letsuchthat of string * N.term * string * N.term
84 | BYC_wehaveand of string * N.term * string * N.term
86 let mk_parser statement lstatus =
87 (* let grammar = CicNotationParser.level2_ast_grammar lstatus in *)
88 let term = CicNotationParser.term lstatus in
89 let let_defs = CicNotationParser.let_defs lstatus in
90 let protected_binder_vars = CicNotationParser.protected_binder_vars lstatus in
91 (* {{{ parser initialization *)
93 GLOBAL: term statement;
94 constructor: [ [ name = IDENT; SYMBOL ":"; typ = term -> (name, typ) ] ];
95 tactic_term: [ [ t = term LEVEL "90" -> t ] ];
99 | id = IDENT -> Some id ]
102 ident_list1: [ [ LPAREN; idents = LIST1 IDENT; RPAREN -> idents ] ];
104 [ tactic_terms = LIST1 tactic_term SEP SYMBOL "," -> tactic_terms ]
107 [ IDENT "normalize" ; delta = OPT [ IDENT "nodelta" -> () ] ->
108 let delta = match delta with None -> true | _ -> false in
110 (*| IDENT "unfold"; t = OPT tactic_term -> `Unfold t*)
111 | IDENT "whd" ; delta = OPT [ IDENT "nodelta" -> () ] ->
112 let delta = match delta with None -> true | _ -> false in
115 sequent_pattern_spec: [
119 path = OPT [SYMBOL ":" ; path = tactic_term -> path ] ->
120 (id,match path with Some p -> p | None -> N.UserInput) ];
121 goal_path = OPT [ SYMBOL <:unicode<vdash>>; term = tactic_term -> term ] ->
123 match goal_path, hyp_paths with
124 None, [] -> Some N.UserInput
126 | Some goal_path, _ -> Some goal_path
135 [ "match" ; wanted = tactic_term ;
136 sps = OPT [ "in"; sps = sequent_pattern_spec -> sps ] ->
138 | sps = sequent_pattern_spec ->
141 let wanted,hyp_paths,goal_path =
142 match wanted_and_sps with
143 wanted,None -> wanted, [], Some N.UserInput
144 | wanted,Some (hyp_paths,goal_path) -> wanted,hyp_paths,goal_path
146 wanted, hyp_paths, goal_path ] ->
148 None -> None,[],Some N.UserInput
151 inverter_param_list: [
152 [ params = tactic_term ->
153 let deannotate = function
154 | N.AttributedTerm (_,t) | t -> t
155 in match deannotate params with
156 | N.Implicit _ -> [false]
157 | N.UserInput -> [true]
159 List.map (fun x -> match deannotate x with
160 | N.Implicit _ -> false
161 | N.UserInput -> true
162 | _ -> raise (Invalid_argument "malformed target parameter list 1")) l
163 | _ -> raise (Invalid_argument ("malformed target parameter list 2\n" ^ NotationPp.pp_term params)) ]
166 [ SYMBOL ">" -> `LeftToRight
167 | SYMBOL "<" -> `RightToLeft ]
169 int: [ [ num = NUMBER -> int_of_string num ] ];
172 [ OPT [ IDENT "names" ];
173 num = OPT [ num = int -> num ];
174 idents = intros_names ->
179 (* MATITA 1.0 using: [ [ using = OPT [ IDENT "using"; t = tactic_term -> t ] -> using ] ]; *)
181 [ SYMBOL "@"; t = tactic_term -> G.NTactic(loc,[G.NApply (loc, t)])
182 | IDENT "apply"; t = tactic_term -> G.NTactic(loc,[G.NApply (loc, t)])
183 | IDENT "applyS"; t = tactic_term -> G.NTactic(loc,[G.NSmartApply(loc, t)])
187 [ id = IDENT ; SYMBOL ":" ; ty = tactic_term -> id,`Decl ty
188 | id = IDENT ; SYMBOL ":" ; ty = tactic_term ;
189 SYMBOL <:unicode<def>> ; bo = tactic_term ->
191 SYMBOL <:unicode<vdash>>;
192 concl = tactic_term -> (List.rev hyps,concl) ] ->
193 G.NTactic(loc,[G.NAssert (loc, seqs)])
194 (*| IDENT "auto"; params = auto_params ->
195 G.NTactic(loc,[G.NAuto (loc, params)])*)
196 | SYMBOL "/"; num = OPT NUMBER ;
197 just_and_params = auto_params; SYMBOL "/" ->
198 let just,params = just_and_params in
199 let depth = match num with Some n -> n | None -> "1" in
203 [G.NAuto(loc,(None,["depth",depth]@params))])
204 | Some (`Univ univ) ->
206 [G.NAuto(loc,(Some univ,["depth",depth]@params))])
209 [G.NAuto(loc,(Some [],["depth",depth]@params))])
212 G.NAutoInteractive (loc, (None,["depth",depth]@params))))
213 | IDENT "intros" -> G.NMacro (loc, G.NIntroGuess loc)
214 | IDENT "check"; t = term -> G.NMacro(loc,G.NCheck (loc,t))
215 | IDENT "screenshot"; fname = QSTRING ->
216 G.NMacro(loc,G.Screenshot (loc, fname))
217 | IDENT "cases"; what = tactic_term ; where = pattern_spec ->
218 G.NTactic(loc,[G.NCases (loc, what, where)])
219 | IDENT "change"; what = pattern_spec; "with"; with_what = tactic_term ->
220 G.NTactic(loc,[G.NChange (loc, what, with_what)])
221 | SYMBOL "@"; num = OPT NUMBER; l = LIST0 tactic_term ->
222 G.NTactic(loc,[G.NConstructor (loc, (match num with None -> None | Some x -> Some (int_of_string x)),l)])
223 | IDENT "cut"; t = tactic_term -> G.NTactic(loc,[G.NCut (loc, t)])
224 (* | IDENT "discriminate"; t = tactic_term -> G.NDiscriminate (loc, t)
225 | IDENT "subst"; t = tactic_term -> G.NSubst (loc, t) *)
226 | IDENT "destruct"; just = OPT [ dom = ident_list1 -> dom ];
227 exclude = OPT [ IDENT "skip"; skip = ident_list1 -> skip ]
228 -> let exclude' = match exclude with None -> [] | Some l -> l in
229 G.NTactic(loc,[G.NDestruct (loc,just,exclude')])
230 | IDENT "elim"; what = tactic_term ; where = pattern_spec ->
231 G.NTactic(loc,[G.NElim (loc, what, where)])
232 | IDENT "generalize"; p=pattern_spec ->
233 G.NTactic(loc,[G.NGeneralize (loc, p)])
234 | IDENT "inversion"; what = tactic_term ; where = pattern_spec ->
235 G.NTactic(loc,[G.NInversion (loc, what, where)])
236 | IDENT "lapply"; t = tactic_term -> G.NTactic(loc,[G.NLApply (loc, t)])
237 | IDENT "letin"; name = IDENT ; SYMBOL <:unicode<def>> ; t = tactic_term;
238 where = pattern_spec ->
239 G.NTactic(loc,[G.NLetIn (loc,where,t,name)])
240 | kind = nreduction_kind; p = pattern_spec ->
241 G.NTactic(loc,[G.NReduce (loc, kind, p)])
242 | dir = direction; what = tactic_term ; where = pattern_spec ->
243 G.NTactic(loc,[G.NRewrite (loc, dir, what, where)])
244 | IDENT "rewrite"; dir = direction; what = tactic_term ; where = pattern_spec ->
245 G.NTactic(loc,[G.NRewrite (loc, dir, what, where)])
246 | IDENT "try"; tac = SELF ->
247 let tac = match tac with G.NTactic(_,[t]) -> t | _ -> assert false in
248 G.NTactic(loc,[ G.NTry (loc,tac)])
249 | IDENT "repeat"; tac = SELF ->
250 let tac = match tac with G.NTactic(_,[t]) -> t | _ -> assert false in
251 G.NTactic(loc,[ G.NRepeat (loc,tac)])
252 | LPAREN; l = LIST1 SELF; RPAREN ->
255 (List.map (function G.NTactic(_,t) -> t | _ -> assert false) l) in
256 G.NTactic(loc,[G.NBlock (loc,l)])
257 | IDENT "assumption" -> G.NTactic(loc,[ G.NAssumption loc])
258 | SYMBOL "#"; ns=IDENT -> G.NTactic(loc,[ G.NIntros (loc,[ns])])
259 | SYMBOL "#"; SYMBOL "_" -> G.NTactic(loc,[ G.NIntro (loc,"_")])
260 | SYMBOL "*" -> G.NTactic(loc,[ G.NCase1 (loc,"_")])
261 | SYMBOL "*"; n=IDENT -> G.NTactic(loc,[ G.NCase1 (loc,n)])
266 | IDENT "fast_paramod"
280 i = auto_fixed_param -> i,""
281 | i = auto_fixed_param ; SYMBOL "="; v = [ v = int ->
282 string_of_int v | v = IDENT -> v ] -> i,v ];
283 just = OPT [ IDENT "by"; by =
284 [ univ = tactic_term_list1 -> `Univ univ
285 | SYMBOL "{"; SYMBOL "}" -> `EmptyUniv
286 | SYMBOL "_" -> `Trace ] -> by ] -> just,params
292 [ WEPROVED; ty = tactic_term ; LPAREN ; id = IDENT ; RPAREN ; t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ; t2 = tactic_term -> t2] -> BYC_weproved (ty,Some id,t1)
293 | WEPROVED; ty = tactic_term ; t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ; t2 = tactic_term -> t2] ;
294 "done" -> BYC_weproved (ty,None,t1)
296 | "let" ; id1 = IDENT ; SYMBOL ":" ; t1 = tactic_term ;
297 IDENT "such" ; IDENT "that" ; t2=tactic_term ; LPAREN ;
298 id2 = IDENT ; RPAREN -> BYC_letsuchthat (id1,t1,id2,t2)
299 | WEHAVE; t1=tactic_term ; LPAREN ; id1=IDENT ; RPAREN ;"and" ; t2=tactic_term ; LPAREN ; id2=IDENT ; RPAREN ->
300 BYC_wehaveand (id1,t1,id2,t2)
305 rewriting_step_continuation : [
314 [ t1 = SELF; SYMBOL ";"; t2 = SELF ->
317 | G.Seq (_, l) -> l @ [ t2 ]
323 [ tac = SELF; SYMBOL ";";
324 SYMBOL "["; tacs = LIST0 SELF SEP SYMBOL "|"; SYMBOL "]"->
325 (G.Then (loc, tac, tacs))
328 [ IDENT "do"; count = int; tac = SELF ->
329 G.Do (loc, count, tac)
330 | IDENT "repeat"; tac = SELF -> G.Repeat (loc, tac)
334 SYMBOL "["; tacs = LIST0 SELF SEP SYMBOL "|"; SYMBOL "]"->
336 | IDENT "try"; tac = SELF -> G.Try (loc, tac)
338 SYMBOL "["; tacs = LIST0 SELF SEP SYMBOL "|"; SYMBOL "]"->
340 | IDENT "progress"; tac = SELF -> G.Progress (loc, tac)
341 | LPAREN; tac = SELF; RPAREN -> tac
342 | tac = tactic -> tac
346 npunctuation_tactical:
348 [ SYMBOL "[" -> G.NBranch loc
349 | SYMBOL "|" -> G.NShift loc
350 | i = LIST1 int SEP SYMBOL ","; SYMBOL ":" -> G.NPos (loc, i)
351 | SYMBOL "*"; SYMBOL ":" -> G.NWildcard loc
352 | name = IDENT; SYMBOL ":" -> G.NPosbyname (loc, name)
353 | SYMBOL "]" -> G.NMerge loc
354 | SYMBOL ";" -> G.NSemicolon loc
355 | SYMBOL "." -> G.NDot loc
358 nnon_punctuation_tactical:
360 [ IDENT "focus"; goals = LIST1 int -> G.NFocus (loc, goals)
361 | IDENT "unfocus" -> G.NUnfocus loc
362 | IDENT "skip" -> G.NSkip loc
366 [ [ IDENT "definition" ] -> `Definition
367 | [ IDENT "fact" ] -> `Fact
368 | [ IDENT "lemma" ] -> `Lemma
369 | [ IDENT "example" ] -> `Example
370 | [ IDENT "theorem" ] -> `Theorem
371 | [ IDENT "corollary" ] -> `Corollary
376 params = LIST0 protected_binder_vars;
377 SYMBOL ":"; fst_typ = term; SYMBOL <:unicode<def>>; OPT SYMBOL "|";
378 fst_constructors = LIST0 constructor SEP SYMBOL "|";
381 name = IDENT; SYMBOL ":"; typ = term; SYMBOL <:unicode<def>>;
382 OPT SYMBOL "|"; constructors = LIST0 constructor SEP SYMBOL "|" ->
383 (name, true, typ, constructors) ] SEP "with" -> types
387 (fun (names, typ) acc ->
388 (List.map (fun name -> (name, typ)) names) @ acc)
391 let fst_ind_type = (fst_name, true, fst_typ, fst_constructors) in
392 let tl_ind_types = match tl with None -> [] | Some types -> types in
393 let ind_types = fst_ind_type :: tl_ind_types in
399 params = LIST0 protected_binder_vars;
400 SYMBOL ":"; typ = term; SYMBOL <:unicode<def>>; SYMBOL "{" ;
404 SYMBOL ":" -> false,0
405 | SYMBOL ":"; SYMBOL ">" -> true,0
406 | SYMBOL ":"; arity = int ; SYMBOL ">" -> true,arity
409 let b,n = coercion in
411 ] SEP SYMBOL ";"; SYMBOL "}" ->
414 (fun (names, typ) acc ->
415 (List.map (fun name -> (name, typ)) names) @ acc)
418 (params,name,typ,fields)
422 [ IDENT "id"; id = QSTRING; SYMBOL "="; uri = QSTRING ->
423 let alpha = "[a-zA-Z]" in
424 let num = "[0-9]+" in
425 let ident_cont = "\\("^alpha^"\\|"^num^"\\|_\\|\\\\\\)" in
426 let decoration = "\\'" in
427 let ident = "\\("^alpha^ident_cont^"*"^decoration^"*\\|_"^ident_cont^"+"^decoration^"*\\)" in
428 let rex = Str.regexp ("^"^ident^"$") in
429 if Str.string_match rex id 0 then
430 if (try ignore (NReference.reference_of_string uri); true
431 with NReference.IllFormedReference _ -> false)
433 G.Ident_alias (id, uri)
436 (HExtlib.Localized (loc, CicNotationParser.Parse_error (Printf.sprintf "Not a valid uri: %s" uri)))
438 raise (HExtlib.Localized (loc, CicNotationParser.Parse_error (
439 Printf.sprintf "Not a valid identifier: %s" id)))
440 | IDENT "symbol"; symbol = QSTRING;
441 instance = OPT [ LPAREN; IDENT "instance"; n = int; RPAREN -> n ];
442 SYMBOL "="; dsc = QSTRING ->
444 match instance with Some i -> i | None -> 0
446 G.Symbol_alias (symbol, instance, dsc)
448 instance = OPT [ LPAREN; IDENT "instance"; n = int; RPAREN -> n ];
449 SYMBOL "="; dsc = QSTRING ->
451 match instance with Some i -> i | None -> 0
453 G.Number_alias (instance, dsc)
457 [ l = LIST0 [ SYMBOL <:unicode<eta>> (* η *); SYMBOL "." -> () ];
459 N.IdentArg (List.length l, id)
463 [ IDENT "left"; IDENT "associative" -> Gramext.LeftA
464 | IDENT "right"; IDENT "associative" -> Gramext.RightA
465 | IDENT "non"; IDENT "associative" -> Gramext.NonA
469 [ "with"; IDENT "precedence"; n = NUMBER -> int_of_string n ]
472 [ dir = OPT direction; s = QSTRING;
473 assoc = OPT associativity; prec = precedence;
476 [ blob = UNPARSED_AST ->
477 add_raw_attribute ~text:(Printf.sprintf "@{%s}" blob)
478 (CicNotationParser.parse_level2_ast lstatus
479 (Ulexing.from_utf8_string blob))
480 | blob = UNPARSED_META ->
481 add_raw_attribute ~text:(Printf.sprintf "${%s}" blob)
482 (CicNotationParser.parse_level2_meta lstatus
483 (Ulexing.from_utf8_string blob))
487 | None -> default_associativity
488 | Some assoc -> assoc
491 add_raw_attribute ~text:s
492 (CicNotationParser.parse_level1_pattern lstatus prec
493 (Ulexing.from_utf8_string s))
495 (dir, p1, assoc, prec, p2)
499 [ r = NREF -> N.NRefPattern (NReference.reference_of_string r)
500 | IMPLICIT -> N.ImplicitPattern
501 | id = IDENT -> N.VarPattern id
502 | LPAREN; terms = LIST1 SELF; RPAREN ->
506 | terms -> N.ApplPattern terms)
510 [ s = CSYMBOL; args = LIST0 argument; SYMBOL "="; t = level3_term ->
516 IDENT "include" ; path = QSTRING ->
517 loc,path,G.WithPreferences
518 | IDENT "include'" ; path = QSTRING ->
519 loc,path,G.WithoutPreferences
522 grafite_ncommand: [ [
523 IDENT "qed" -> G.NQed loc
524 | nflavour = ntheorem_flavour; name = IDENT; SYMBOL ":"; typ = term;
525 body = OPT [ SYMBOL <:unicode<def>> (* ≝ *); body = term -> body ] ->
526 G.NObj (loc, N.Theorem (nflavour, name, typ, body,`Regular))
527 | nflavour = ntheorem_flavour; name = IDENT; SYMBOL <:unicode<def>> (* ≝ *);
529 G.NObj (loc, N.Theorem (nflavour, name, N.Implicit `JustOne, Some body,`Regular))
530 | IDENT "axiom"; name = IDENT; SYMBOL ":"; typ = term ->
531 G.NObj (loc, N.Theorem (`Axiom, name, typ, None, `Regular))
532 | IDENT "discriminator" ; indty = tactic_term -> G.NDiscriminator (loc,indty)
533 | IDENT "inverter"; name = IDENT; IDENT "for" ; indty = tactic_term ;
534 paramspec = OPT inverter_param_list ;
535 outsort = OPT [ SYMBOL ":" ; outsort = term -> outsort ] ->
536 G.NInverter (loc,name,indty,paramspec,outsort)
537 | NLETCOREC ; defs = let_defs ->
538 nmk_rec_corec `CoInductive defs loc
539 | NLETREC ; defs = let_defs ->
540 nmk_rec_corec `Inductive defs loc
541 | IDENT "inductive"; spec = inductive_spec ->
542 let (params, ind_types) = spec in
543 G.NObj (loc, N.Inductive (params, ind_types))
544 | IDENT "coinductive"; spec = inductive_spec ->
545 let (params, ind_types) = spec in
546 let ind_types = (* set inductive flags to false (coinductive) *)
547 List.map (fun (name, _, term, ctors) -> (name, false, term, ctors))
550 G.NObj (loc, N.Inductive (params, ind_types))
551 | IDENT "universe"; IDENT "constraint"; u1 = tactic_term;
552 SYMBOL <:unicode<lt>> ; u2 = tactic_term ->
554 | NotationPt.AttributedTerm (_, NotationPt.Sort (`NType i)) ->
555 NUri.uri_of_string ("cic:/matita/pts/Type"^i^".univ")
556 | _ -> raise (Failure "only a Type[…] sort can be constrained")
560 G.NUnivConstraint (loc,u1,u2)
561 | IDENT "unification"; IDENT "hint"; n = int; t = tactic_term ->
562 G.UnificationHint (loc, t, n)
563 | IDENT "coercion"; name = IDENT; SYMBOL ":"; ty = term;
564 SYMBOL <:unicode<def>>; t = term; "on";
565 id = [ IDENT | PIDENT ]; SYMBOL ":"; source = term;
566 "to"; target = term ->
567 G.NCoercion(loc,name,t,ty,(id,source),target)
568 | IDENT "record" ; (params,name,ty,fields) = record_spec ->
569 G.NObj (loc, N.Record (params,name,ty,fields))
570 | IDENT "copy" ; s = IDENT; IDENT "from"; u = URI; "with";
571 m = LIST0 [ u1 = URI; SYMBOL <:unicode<mapsto>>; u2 = URI -> u1,u2 ] ->
572 G.NCopy (loc,s,NUri.uri_of_string u,
573 List.map (fun a,b -> NUri.uri_of_string a, NUri.uri_of_string b) m)
574 | lc = lexicon_command -> lc
578 IDENT "alias" ; spec = alias_spec ->
580 | IDENT "notation"; (dir, l1, assoc, prec, l2) = notation ->
581 G.Notation (loc, dir, l1, assoc, prec, l2)
582 | IDENT "interpretation"; id = QSTRING;
583 (symbol, args, l3) = interpretation ->
584 G.Interpretation (loc, id, (symbol, args), l3)
587 [ ncmd = grafite_ncommand; SYMBOL "." -> G.NCommand (loc, ncmd)
588 | punct = npunctuation_tactical -> G.NTactic (loc, [punct])
589 | tac = nnon_punctuation_tactical(*; punct = npunctuation_tactical*) ->
590 G.NTactic (loc, [tac])
591 | tac = ntactic (*; punct = npunctuation_tactical*) ->
594 | tac = nnon_punctuation_tactical;
595 punct = npunctuation_tactical ->
596 G.NTactic (loc, [tac; punct])
601 [ BEGINCOMMENT ; ex = executable ; ENDCOMMENT ->
608 [ ex = executable -> G.Executable (loc, ex)
609 | com = comment -> G.Comment (loc, com)
610 | (iloc,fname,mode) = include_command ; SYMBOL "." ->
611 G.Executable (loc,G.NCommand (loc,G.Include (iloc,mode,fname)))
612 | EOI -> raise End_of_file
620 type db = GrafiteAst.statement Grammar.Entry.e ;;
622 class type g_status =
624 inherit CicNotationParser.g_status
630 inherit CicNotationParser.status ~keywords:[]
631 val mutable db = None
632 method parser_db = match db with None -> assert false | Some x -> x
633 method set_parser_db v = {< db = Some v >}
634 method set_parser_status
635 : 'status. #g_status as 'status -> 'self
636 = fun o -> {< db = Some o#parser_db >}#set_notation_parser_status o
638 let grammar = CicNotationParser.level2_ast_grammar self in
639 db <- Some (mk_parser (Grammar.Entry.create grammar "statement") self)
642 let extend status l1 action =
643 let status = CicNotationParser.extend status l1 action in
644 let grammar = CicNotationParser.level2_ast_grammar status in
646 (mk_parser (Grammar.Entry.create grammar "statement") status)
650 let parse_statement status =
651 parse_statement status#parser_db
653 (* vim:set foldmethod=marker: *)