156 lines
4.4 KiB
C++
156 lines
4.4 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef MAPNIK_EXPRESSIONS_GRAMMAR_HPP
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#define MAPNIK_EXPRESSIONS_GRAMMAR_HPP
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// mapnik
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#include <mapnik/value.hpp>
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#include <mapnik/expression_node.hpp>
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// boost
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#include <boost/version.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/concept_check.hpp>
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// spirit2
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/qi_action.hpp>
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// fusion
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#include <boost/fusion/include/adapt_struct.hpp>
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// phoenix
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#include <boost/spirit/include/phoenix_core.hpp>
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#include <boost/spirit/include/phoenix_object.hpp>
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#include <boost/spirit/include/phoenix_operator.hpp>
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#include <boost/spirit/include/phoenix_function.hpp>
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#include <boost/spirit/include/phoenix_stl.hpp>
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#include <boost/spirit/home/phoenix/object/construct.hpp>
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namespace mapnik
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{
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using namespace boost;
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namespace qi = boost::spirit::qi;
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namespace standard_wide = boost::spirit::standard_wide;
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using standard_wide::space_type;
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struct unicode_impl
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{
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template <typename T>
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struct result
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{
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typedef UnicodeString type;
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};
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explicit unicode_impl(mapnik::transcoder const& tr)
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: tr_(tr) {}
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UnicodeString operator()(std::string const& str) const
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{
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return tr_.transcode(str.c_str());
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}
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mapnik::transcoder const& tr_;
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};
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struct regex_match_impl
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{
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template <typename T0, typename T1>
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struct result
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{
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typedef expr_node type;
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};
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explicit regex_match_impl(mapnik::transcoder const& tr)
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: tr_(tr) {}
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template <typename T0,typename T1>
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expr_node operator() (T0 & node, T1 const& pattern) const;
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mapnik::transcoder const& tr_;
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};
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struct regex_replace_impl
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{
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template <typename T0, typename T1, typename T2>
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struct result
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{
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typedef expr_node type;
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};
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explicit regex_replace_impl(mapnik::transcoder const& tr)
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: tr_(tr) {}
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template <typename T0,typename T1,typename T2>
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expr_node operator() (T0 & node, T1 const& pattern, T2 const& format) const;
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mapnik::transcoder const& tr_;
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};
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struct geometry_types : qi::symbols<char,int>
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{
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geometry_types()
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{
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add
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("point",1)
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("linestring", 2)
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("polygon",3)
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("collection",4)
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;
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}
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};
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template <typename Iterator>
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struct expression_grammar : qi::grammar<Iterator, expr_node(), space_type>
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{
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typedef qi::rule<Iterator, expr_node(), space_type> rule_type;
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explicit expression_grammar(mapnik::transcoder const& tr);
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qi::real_parser<double, qi::strict_real_policies<double> > strict_double;
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boost::phoenix::function<unicode_impl> unicode_;
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boost::phoenix::function<regex_match_impl> regex_match_;
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boost::phoenix::function<regex_replace_impl> regex_replace_;
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rule_type expr;
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rule_type equality_expr;
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rule_type cond_expr;
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rule_type relational_expr;
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rule_type logical_expr;
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rule_type additive_expr;
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rule_type multiplicative_expr;
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rule_type unary_expr;
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rule_type not_expr;
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rule_type primary_expr;
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qi::rule<Iterator, std::string() > regex_match_expr;
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qi::rule<Iterator, expr_node(expr_node), qi::locals<std::string,std::string>, space_type> regex_replace_expr;
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qi::rule<Iterator, std::string() , space_type> attr;
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qi::rule<Iterator, std::string(), qi::locals<char> > ustring;
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qi::symbols<char const, char const> unesc_char;
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qi::rule<Iterator, char() > quote_char;
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geometry_types geom_type;
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};
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} // namespace
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#endif // MAPNIK_EXPRESSIONS_GRAMMAR_HPP
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