1 (* Copyright (C) 2004, 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/
30 open DisambiguateTypes
32 exception Choice_not_found of string Lazy.t
34 let num_choices = ref []
36 let add_num_choice choice = num_choices := choice :: !num_choices
38 let has_description dsc = (fun x -> fst x = dsc)
40 let lookup_num_choices () = !num_choices
42 let lookup_num_by_dsc dsc =
44 List.find (has_description dsc) !num_choices
45 with Not_found -> raise (Choice_not_found (lazy ("Num with dsc " ^ dsc)))
47 let mk_choice (dsc, args, appl_pattern) =
49 (fun env _ cic_args ->
52 List.map (function CicNotationPt.IdentArg (_, name) -> name) args
54 let rec combine_with_rest l1 l2 =
56 _::_,[] -> raise (Invalid_argument "combine_with_rest")
58 | he1::tl1,he2::tl2 ->
59 let l,rest = combine_with_rest tl1 tl2 in
63 combine_with_rest names cic_args
64 with Invalid_argument _ ->
65 raise (Invalid_choice (None, lazy ("The notation " ^ dsc ^ " expects more arguments")))
68 TermAcicContent.instantiate_appl_pattern env' appl_pattern
72 | _::_ -> Cic.Appl (combined::rest))
74 let lookup_symbol_by_dsc symbol dsc =
78 (fun (dsc', _, _) -> dsc = dsc')
79 (TermAcicContent.lookup_interpretations symbol))
80 with TermAcicContent.Interpretation_not_found | Not_found ->
81 raise (Choice_not_found (lazy (sprintf "Symbol %s, dsc %s" symbol dsc)))