---

filters.h

/*
 *  Interface to register SLP services - Search Filters
 *  Copyright (C) 2002-2003 Tim Jansen <tim@tjansen.de>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 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
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 *  Boston, MA 02111-1307, USA.
 */

#ifndef KDE_SLP_FILTERS_H
#define KDE_SLP_FILTERS_H

#include <kde/util/smartptr.h>
#include <qstring.h>
#include <qvaluelist.h>

namespace KDE {
namespace SLP {

class Filter {
public:
        enum Type {
                InvalidFilter,
                PredicateFilter
                /*,
                SortFilter,
                SelectFilter*/
        };

protected:
        Type m_type;
        Filter(Type type);

public:
        typedef QValueList<KDE::Util::SmartPtr<Filter> > List;

        Type type() const { return m_type; }
};

class PredicateFilter : public Filter {
private:
        QString m_predicate;
public:
        PredicateFilter(const QString &predicate);

        QString predicate() const;

        static QString escape(const QString &s);
};


}
}

#endif

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