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/
28 exception Macro_not_found of string
29 exception Utf8_not_found of string
33 Hashtbl.find Utf8MacroTable.macro2utf8 macro
34 with Not_found -> raise (Macro_not_found macro)
36 let unicode_of_tex s =
39 expand (String.sub s 1 (String.length s - 1))
41 with Macro_not_found _ -> s
43 let tex_of_unicode s =
44 (*WARNING: the space below is a nbsp (0x00A0), not a normal space *)
45 if s = " " then Some ""
48 Some ("\\" ^ Hashtbl.find Utf8MacroTable.utf82macro s)
49 with Not_found -> None