(* Graph viewer
 * Copyright (C) 2010 Jérôme Vouillon
 * Laboratoire PPS - CNRS Université Paris Diderot
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *)

type kind =
  [ `Graph
  | `Digraph
  ]

type attr_type =
  [ `Graph
  | `Edge
  | `Node
  ]

type attributes = (string * string) list

type node =
  { name : string
  ; port : string option
  }

type graph =
  { graph_name : string option
  ; body : statement list
  }

and compound = [ `Node of node | `Graph of graph ] list * attributes

and statement =
  [ `Attributes of attr_type * attributes
  | `Compound of compound
  ]

type t =
  { kind : kind
  ; strict : bool
  ; graph : graph
  }
