PreProc.h

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/*
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * Written (W) 1999-2009 Soeren Sonnenburg
 * Written (W) 1999-2008 Gunnar Raetsch
 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
 */

#ifndef _CPREPROC__H__
#define _CPREPROC__H__

#include "lib/common.h"
#include "base/SGObject.h"
#include "features/FeatureTypes.h"
#include "features/Features.h"

namespace shogun
{
    class CFeatures;
    enum EFeatureType;
    enum EFeatureClass;

enum EPreProcType
{
    P_UNKNOWN=0,
    P_NORMONE=10,
    P_LOGPLUSONE=20,
    P_SORTWORDSTRING=30,
    P_SORTULONGSTRING=40,
    P_SORTWORD=50,
    P_PRUNEVARSUBMEAN=60,
    P_DECOMPRESSCHARSTRING=70,
    P_DECOMPRESSBYTESTRING=80,
    P_DECOMPRESSWORDSTRING=90,
    P_DECOMPRESSULONGSTRING=100,
};

class CFeatures;

class CPreProc : public CSGObject
{
public:
    CPreProc(const char* name, const char* id);
    virtual ~CPreProc();

    virtual bool init(CFeatures* f)=0;

    virtual void cleanup()=0;
    
    virtual EFeatureType get_feature_type()=0;

    virtual EFeatureClass get_feature_class()=0;

    virtual const char* get_name() const { return preproc_name; }
    
    const char * get_id() const { return preproc_id; }

 protected:
    const char* preproc_name;
    const char* preproc_id;
};
}
#endif