mapnik/src/parse_transform.cpp

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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
*
*****************************************************************************/
#include <mapnik/parse_transform.hpp>
#include <mapnik/transform_expression_grammar.hpp>
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#include <mapnik/transform_processor.hpp>
#include <mapnik/debug.hpp>
namespace mapnik {
transform_list_ptr parse_transform(std::string const& str)
{
return parse_transform(str, "utf-8");
}
transform_list_ptr parse_transform(std::string const& str, std::string const& encoding)
{
transform_list_ptr tl = std::make_shared<transform_list>();
static const transform_expression_grammar_string gte;
if (!parse_transform(*tl, str, gte))
{
tl.reset();
}
return tl;
}
bool parse_transform(transform_list& tl,
std::string const& str)
{
static const transform_expression_grammar_string gte;
return parse_transform(tl, str, gte);
}
bool parse_transform(transform_list& transform,
std::string const& str,
transform_expression_grammar_string const& g)
{
std::string::const_iterator itr = str.begin();
std::string::const_iterator end = str.end();
bool r = qi::phrase_parse(itr, end, g, space_type(), transform);
#ifdef MAPNIK_LOG
MAPNIK_LOG_DEBUG(load_map) << "map_parser: Parsed transform [ "
<< transform_processor_type::to_string(transform) << " ]";
#endif
return (r && itr==end);
}
} // namespace mapnik