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/*****************************************************************************
 *
 * This file is part of Mapnik (c++ mapping toolkit)
 *
 * Copyright (C) 2012 Artem Pavlenko
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *****************************************************************************/

#ifndef MAPNIK_TRANSFORM_EXPRESSION_GRAMMAR_HPP
#define MAPNIK_TRANSFORM_EXPRESSION_GRAMMAR_HPP

// mapnik
#include <mapnik/expression_grammar.hpp>
#include <mapnik/transform_expression.hpp>

// spirit
#include <boost/spirit/include/qi.hpp>

namespace mapnik {

    namespace qi = boost::spirit::qi;

    template <typename Iterator>
    struct transform_expression_grammar
        : qi::grammar<Iterator, transform_list(), space_type>
    {
        explicit transform_expression_grammar(expression_grammar<Iterator> const& g);

        typedef qi::rule<Iterator, transform_node(), space_type> node_rule;
        typedef qi::rule<Iterator, transform_list(), space_type> list_rule;

        // rules
        qi::rule<Iterator, std::string(), space_type>    attr;
        qi::rule<Iterator, expr_node(), space_type>      atom;
        qi::rule<Iterator, expr_node(), space_type>      expr;
        qi::rule<Iterator, expr_node(), space_type>      sep_atom;
        qi::rule<Iterator, expr_node(), space_type>      sep_expr;
        qi::rule<Iterator, transform_list(), space_type> start;
        qi::rule<Iterator, transform_node(), space_type> transform_;
        qi::rule<Iterator, transform_node(), space_type> matrix;
        qi::rule<Iterator, transform_node(), space_type> translate;
        qi::rule<Iterator, transform_node(), space_type> scale;
        qi::rule<Iterator, transform_node(), space_type> rotate;
        qi::rule<Iterator, transform_node(), space_type> skewX;
        qi::rule<Iterator, transform_node(), space_type> skewY;
    };

} // namespace mapnik

#endif // MAPNIK_TRANSFORM_EXPRESSION_GRAMMAR_HPP