include/xapian/stem.h

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/* Copyright (C) 2005,2007,2010 Olly Betts
 * Copyright (C) 2010 Evgeny Sizikov
 *
 * 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 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef XAPIAN_INCLUDED_STEM_H
#define XAPIAN_INCLUDED_STEM_H

#include <xapian/base.h>
#include <xapian/visibility.h>

#include <string>

namespace Xapian {

struct XAPIAN_VISIBILITY_DEFAULT StemImplementation
    : public Xapian::Internal::RefCntBase
{
    virtual ~StemImplementation();

    virtual std::string operator()(const std::string & word) = 0;

    virtual std::string get_description() const = 0;
};

class XAPIAN_VISIBILITY_DEFAULT Stem {
  public:
    Xapian::Internal::RefCntPtr<StemImplementation> internal;

    Stem(const Stem & o);

    void operator=(const Stem & o);

    Stem();

    explicit Stem(const std::string &language);

    explicit Stem(StemImplementation * p);

    ~Stem();

    std::string operator()(const std::string &word) const;

    std::string get_description() const;

    static std::string get_available_languages();
};

}

#endif // XAPIAN_INCLUDED_STEM_H

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