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/*
* This file is part of the program ltl2dstar (http://www.ltl2dstar.de/).
* Copyright (C) 2005-2007 Joachim Klein <j.klein@ltl2dstar.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU 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
*/
#ifndef NBA_I_H
#define NBA_I_H
#include "APMonom.hpp"
#include "APElement.hpp"
#include "APSet.hpp"
/**
* Simple virtual interface to the functions in a NBA needed by
* parsers to construct an NBA.
*/
class NBA_I {
public:
/** Constructor */
virtual ~NBA_I() {};
/**
* Create a new state.
* @return the index of the new state
*/
virtual unsigned int nba_i_newState() = 0;
/**
* Add an edge from state <i>from</i> to state <i>to</i>
* for the edges covered by the APMonom.
* @param from the index of the 'from' state
* @param m the APMonom
* @param to the index of the 'to' state
*/
virtual void nba_i_addEdge(unsigned int from,
APMonom& m,
unsigned int to) = 0;
/**
* Get the underlying APSet
* @return a const pointer to the APSet
*/
virtual APSet_cp nba_i_getAPSet() = 0;
/**
* Set the final flag (accepting) for a state.
* @param state the state index
* @param final the flag
*/
virtual void nba_i_setFinal(unsigned int state, bool final) = 0;
/**
* Set the state as the start state.
* @param state the state index
*/
virtual void nba_i_setStartState(unsigned int state) = 0;
};
#endif