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
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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
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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 module Ast = CicNotationPt
29 module Util = CicNotationUtil
37 | Uri of UriManager.uri
38 | Appl of cic_mask_t list
40 let uri_of_term t = CicUtil.uri_of_term (Deannotate.deannotate_term t)
42 let mask_of_cic = function
43 | Cic.AAppl (_, tl) -> Appl (List.map (fun _ -> Blob) tl), tl
44 | Cic.AConst (_, _, [])
46 | Cic.AMutInd (_, _, _, [])
47 | Cic.AMutConstruct (_, _, _, _, []) as t -> Uri (uri_of_term t), []
51 let mask, tl = mask_of_cic t in
54 let mask_of_appl_pattern = function
55 | Ast.UriPattern uri -> Uri uri, []
57 | Ast.VarPattern _ -> Blob, []
58 | Ast.ApplPattern pl -> Appl (List.map (fun _ -> Blob) pl), pl
60 let tag_of_pattern p =
61 let mask, pl = mask_of_appl_pattern p in
64 type pattern_t = Ast.cic_appl_pattern
65 type term_t = Cic.annterm
67 let string_of_pattern = CicNotationPp.pp_cic_appl_pattern
68 let string_of_term t = CicPp.ppterm (Deannotate.deannotate_term t)
70 let classify = function
72 | Ast.VarPattern _ -> PatternMatcher.Variable
74 | Ast.ApplPattern _ -> PatternMatcher.Constructor
77 module M = PatternMatcher.Matcher (Pattern32)
80 let match_cb rows matched_terms constructors =
88 | Ast.ImplicitPattern -> Util.fresh_name (), t
89 | Ast.VarPattern name -> name, t
92 with Invalid_argument _ -> assert false in
93 let rec check_non_linear_patterns =
100 CicUtil.alpha_equivalence
101 (Deannotate.deannotate_term t) (Deannotate.deannotate_term t')
102 ) tl && check_non_linear_patterns tl
104 if check_non_linear_patterns env then
105 Some (env, constructors, pid)
110 M.compiler rows match_cb (fun () -> None)