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 (* AUTOR: Ferruccio Guidi <fguidi@cs.unibo.it>
30 type position = string
34 type spec = MustObj of uri list * position list * depth list
35 | MustSort of sort list * position list * depth list
36 | MustRel of position list * depth list
37 | OnlyObj of uri list * position list * depth list
38 | OnlySort of sort list * position list * depth list
39 | OnlyRel of position list * depth list
40 | Universe of position list
42 type builtin_t = MainHypothesis
51 val locate : string -> MathQL.query
53 val compose : spec list -> MathQL.query
55 val builtin : builtin_t -> string
57 (* interface for the old constraints ***************************************)
59 type old_depth = int option
61 type r_obj = uri * position * old_depth
62 type r_rel = position * old_depth
63 type r_sort = position * old_depth * sort
65 type must_restrictions = (r_obj list * r_rel list * r_sort list)
66 type only_restrictions =
67 (r_obj list option * r_rel list option * r_sort list option)
68 type universe = position list option
70 val query_of_constraints : universe -> must_restrictions -> only_restrictions -> MathQL.query