mootFSMBase.h

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/*-*- Mode: C++ -*-*/

/*
   libmootm : moocow's morphology library:
   Copyright (C) 2004-2005 by Bryan Jurish <moocow@ling.uni-potsdam.de>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.
   
   This library 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 library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

/*----------------------------------------------------------------------
 * Name: mootFSMBase.h
 * Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
 * Description:
 *   + moot FSMs: abstract base class
 *----------------------------------------------------------------------*/
#ifndef _moot_FSM_BASE_H
#define _moot_FSM_BASE_H

#ifdef HAVE_CONFIG_H
# include <mootmUnConfig.h>
# include <mootmConfig.h>
#endif

#ifdef USE_FSM_POTSDAM
  /* use hash<std::string> from libFSM */
# define MOOT_HAVE_HASH_STRING
#endif

#include <mootmUnConfig.h>


#include <string>
#include <mootToken.h>

namespace mootm {
  using namespace std;
  using namespace moot;

  class mootFSMBase {
  public:
    /*------------------------------------------------------------
     * public methods
     */
    mootFSMBase(void) {};

    virtual ~mootFSMBase(void) {};

    virtual bool load(const string &fstfile, const string &symfile="")
    { dummy("load"); return false; };

    virtual bool valid(void) const
    { return false; };

    virtual mootToken& analyze_token(mootToken &tok, bool want_avm=true, bool want_warnings=true)
    { dummy("analyze_token"); return tok; }

  public:
    /*------------------------------------------------------------
     * dummy methods, low-level
     */
    void dummy(const char *name="?")
    {
      this->carp("mootFSM::%s(): dummy method called -- exiting.\n", name);
      abort();
    };

    void carp(char *fmt, ...) const;
  }; // class mootFSMBase


}; // namespace mootm

#endif /* _moot_FSM_BASE_H */

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