mapnik/include/mapnik/path_expression_grammar_impl.hpp
2014-07-24 14:31:59 -07:00

59 lines
1.8 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 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
*
*****************************************************************************/
// mapnik
#include <mapnik/path_expression_grammar.hpp>
#include <mapnik/attribute.hpp>
// boost
#include <boost/spirit/include/phoenix_core.hpp>
#include <boost/spirit/include/phoenix_object.hpp>
#include <boost/spirit/include/phoenix_stl.hpp>
namespace mapnik
{
template <typename Iterator>
path_expression_grammar<Iterator>::path_expression_grammar()
: path_expression_grammar::base_type(expr)
{
standard_wide::char_type char_;
qi::_1_type _1;
qi::_val_type _val;
qi::lit_type lit;
qi::lexeme_type lexeme;
using phoenix::push_back;
using boost::phoenix::construct;
expr =
* (
str [ push_back(_val, _1)]
|
( '[' >> attr [ push_back(_val, construct<mapnik::attribute>( _1 )) ] >> ']')
)
;
attr %= +(char_ - ']');
str %= lexeme[+(char_ -'[')];
}
}