1 (* Copyright (C) 2006, 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://helm.cs.unibo.it/
28 (** {2 Pretty printer for generating (textual) Graphviz markup} *)
30 type attribute = string * string (* <key, value> pair *)
32 module type GraphvizFormatter =
34 val header: ?name:string -> Format.formatter -> unit
35 val node: string -> ?attrs:(attribute list) -> Format.formatter -> unit
37 string -> string -> ?attrs:(attribute list) -> Format.formatter ->
39 val raw: string -> Format.formatter -> unit
40 val trailer: Format.formatter -> unit
43 module Dot: GraphvizFormatter