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 exception IllFormedUri of string Lazy.t;;
28 (* order, uri, (type, constructor) *)
29 type uri = private Uri of int * string * (int * int option ) option
31 let eq (Uri(_,x1,x2)) (Uri(_,y1,y2)) = x1 = y1 && x2 = y2;;
33 let string_of_uri = function
35 | Uri (_,s,Some (i,None)) ->
36 s ^ "#xpointer(1/" ^ string_of_int (i+1) ^ ")"
37 | Uri (_,s,Some (i, Some k)) ->
38 s ^ "#xpointer(1/" ^ string_of_int (i+1) ^ "/" ^ string_of_int k ^ ")"