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 type flag = Postgres | Galax | Stat | Quiet | Warn
28 val string_of_flags : flag list -> string
29 val flags_of_string : string -> flag list
31 exception InvalidConnection
35 val init : flag list -> (string -> unit) -> handle
36 val close : handle -> unit
37 val connected : handle -> bool
39 val init_if_connected : flag list -> (string -> unit) -> handle
41 (* The following functions allow to read the handle internal fields.
42 * For exclusive use of the interpreter.
45 val log : handle -> string -> unit
46 val set : handle -> flag -> bool
47 val pgc : handle -> Postgres.connection