Fix indentation in GPL headers
[hcoop/domtool2.git] / src / baseTypes.sml
1 (* HCoop Domtool (http://hcoop.sourceforge.net/)
2 * Copyright (c) 2006, Adam Chlipala
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 *)
18
19 (* Add some base types *)
20
21 structure BaseTypes :> BASE_TYPES = struct
22
23 open Ast
24
25 val _ = Env.registerType ("even", fn (EInt n, _) => n mod 2 = 0
26 | _ => false)
27
28 val _ = Env.registerType ("digits", fn (EString s, _) => CharVector.all Char.isDigit s
29 | _ => false)
30
31 end