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/
29 module Obj = LibraryObjects
30 module DT = DisambiguateTypes
33 raise (DT.Invalid_choice (lazy (Stdpp.dummy_loc, msg)))
35 let build_nat o s str =
36 let n = int_of_string str in
37 if n < 0 then error (str ^ " is not a valid natural number number") else
38 let rec aux n = if n = 0 then o () else s (aux (pred n)) in
41 let interp_natural_number num =
42 let nat_URI = match Obj.nat_URI () with
44 | None -> error "no default natural numbers"
46 let o () = C.MutConstruct (nat_URI,0,1,[]) in
47 let s t = C.Appl [C.MutConstruct (nat_URI,0,2,[]); t] in
51 DisambiguateChoices.add_num_choice
52 ("natural number", `Num_interp interp_natural_number);
53 DisambiguateChoices.add_num_choice
54 ("Coq natural number",
55 `Num_interp (fun num -> HelmLibraryObjects.build_nat (int_of_string num)));
56 DisambiguateChoices.add_num_choice
58 `Num_interp (fun num -> HelmLibraryObjects.build_real (int_of_string num)));
59 DisambiguateChoices.add_num_choice
60 ("binary positive number",
61 `Num_interp (fun num ->
62 let num = int_of_string num in
64 error "0 is not a valid positive number"
66 HelmLibraryObjects.build_bin_pos num));
67 DisambiguateChoices.add_num_choice
68 ("binary integer number",
69 `Num_interp (fun num ->
70 let num = int_of_string num in
72 HelmLibraryObjects.BinInt.z0
75 HelmLibraryObjects.BinInt.zpos;
76 HelmLibraryObjects.build_bin_pos num ]