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.
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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 (* mk_fresh_name context name typ *)
27 (* returns an identifier which is fresh in the context *)
28 (* and that resembles [name] as much as possible. *)
29 (* [typ] will be the type of the variable *)
30 let mk_fresh_name metasenv context name ~typ =
35 (*CSC: great space for improvements here *)
37 (match CicTypeChecker.type_of_aux' metasenv context typ with
39 | C.Sort C.CProp -> "H"
43 with CicTypeChecker.TypeCheckerFailure _ -> "H"
46 Str.global_replace (Str.regexp "[0-9]*$") "" name
48 let already_used name =
49 List.exists (function Some (C.Name n,_) -> n=name | _ -> false) context
51 if not (already_used basename) then
55 let name' = basename ^ string_of_int n in
56 if already_used name' then