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/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2007 Ciaran McCreesh
 *
 * This file is part of the Paludis package manager. Paludis 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.
 *
 * Paludis 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
 */

#include "description_extractor.hh"
#include <paludis/package_database.hh>
#include <paludis/package_id.hh>
#include <paludis/metadata_key.hh>
#include <paludis/util/private_implementation_pattern-impl.hh>

using namespace paludis;
using namespace inquisitio;

namespace paludis
{
    template <>
    struct Implementation<DescriptionExtractor>
    {
        const Environment * const env;

        Implementation(const Environment & e) :
            env(&e)
        {
        }
    };
}

DescriptionExtractor::DescriptionExtractor(const Environment & e) :
    PrivateImplementationPattern<DescriptionExtractor>(new Implementation<DescriptionExtractor>(e))
{
}

DescriptionExtractor::~DescriptionExtractor()
{
}

std::string
DescriptionExtractor::operator() (const PackageID & p) const
{
    if (p.short_description_key())
        return p.short_description_key()->value();
    return "";
}