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// Copyright (c) 2016, 2025, Oracle and/or its affiliates.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
//
// This program is designed to work with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation. The authors of MySQL hereby grant you an additional
// permission to link the program and your derivative works with the
// separately licensed software that they have either included with
// the program or referenced in the documentation.
//
// This program 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, version 2.0, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#include "sql/gis/srs/wkt_parser.h"
#include <assert.h>
#include <cctype>
#include <boost/concept/usage.hpp>
#include <boost/fusion/adapted/struct/adapt_struct.hpp>
#include <boost/fusion/iterator/deref.hpp>
#include <boost/preprocessor/arithmetic/dec.hpp>
#include <boost/preprocessor/arithmetic/inc.hpp>
#include <boost/preprocessor/comparison/not_equal.hpp>
#include <boost/preprocessor/control/expr_iif.hpp>
#include <boost/preprocessor/control/iif.hpp>
#include <boost/preprocessor/logical/bool.hpp>
#include <boost/preprocessor/repetition/for.hpp>
#include <boost/preprocessor/seq/elem.hpp>
#include <boost/preprocessor/seq/size.hpp>
#include <boost/preprocessor/tuple/elem.hpp>
#include <boost/preprocessor/tuple/to_seq.hpp>
#include <boost/preprocessor/variadic/elem.hpp>
#include <boost/proto/operators.hpp>
#include <boost/spirit/include/qi.hpp>
#include "my_inttypes.h"
#include "my_sys.h"
#include "mysqld_error.h" // ER_*
#include "sql/gis/srs/srs.h"
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Authority,
(bool, valid)(gis::srs::wkt_parser::String,
name)(gis::srs::wkt_parser::String,
code))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Spheroid,
(gis::srs::wkt_parser::String,
name)(double, semi_major_axis)(double,
inverse_flattening)(
gis::srs::wkt_parser::Authority, authority))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Towgs84,
(bool, valid)(double, dx)(double, dy)(double, dz)(
double, ex)(double, ey)(double, ez)(double, ppm))
BOOST_FUSION_ADAPT_STRUCT(
gis::srs::wkt_parser::Datum,
(gis::srs::wkt_parser::String,
name)(gis::srs::wkt_parser::Spheroid,
spheroid)(gis::srs::wkt_parser::Towgs84,
towgs84)(gis::srs::wkt_parser::Authority, authority))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Prime_meridian,
(gis::srs::wkt_parser::String,
name)(double,
longitude)(gis::srs::wkt_parser::Authority,
authority))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Unit,
(gis::srs::wkt_parser::String,
name)(double, conversion_factor)(
gis::srs::wkt_parser::Authority, authority))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Axis,
(gis::srs::wkt_parser::String,
name)(gis::srs::Axis_direction, direction))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Twin_axes,
(bool, valid)(gis::srs::wkt_parser::Axis,
x)(gis::srs::wkt_parser::Axis, y))
BOOST_FUSION_ADAPT_STRUCT(
gis::srs::wkt_parser::Geographic_cs,
(gis::srs::wkt_parser::String, name)(gis::srs::wkt_parser::Datum, datum)(
gis::srs::wkt_parser::Prime_meridian,
prime_meridian)(gis::srs::wkt_parser::Unit,
angular_unit)(gis::srs::wkt_parser::Twin_axes,
axes)(gis::srs::wkt_parser::Authority,
authority))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Projection,
(gis::srs::wkt_parser::String,
name)(gis::srs::wkt_parser::Authority, authority))
BOOST_FUSION_ADAPT_STRUCT(gis::srs::wkt_parser::Projection_parameter,
(gis::srs::wkt_parser::String, name), (double, value),
(gis::srs::wkt_parser::Authority, authority))
BOOST_FUSION_ADAPT_STRUCT(
gis::srs::wkt_parser::Projected_cs,
(gis::srs::wkt_parser::String,
name)(gis::srs::wkt_parser::Geographic_cs,
geographic_cs)(gis::srs::wkt_parser::Projection, projection)(
gis::srs::wkt_parser::Projection_parameters,
parameters)(gis::srs::wkt_parser::Unit,
linear_unit)(gis::srs::wkt_parser::Twin_axes,
axes)(gis::srs::wkt_parser::Authority,
authority))
namespace gis {
namespace srs {
namespace wkt_parser {
/// @cond DOXYGEN_DOESNT_UNDERSTAND_THIS_LINE
namespace qi = boost::spirit::qi;
/// @endcond
template <typename T>
struct number_policies : qi::real_policies<T> {
template <typename Iterator, typename Attribute>
static bool parse_nan(Iterator &, Iterator const &, Attribute &) {
return false;
}
template <typename Iterator, typename Attribute>
static bool parse_inf(Iterator &, Iterator const &, Attribute &) {
return false;
}
};
template <typename Iterator, typename Skipper>
struct Grammar : qi::grammar<Iterator, Coordinate_system(), Skipper> {
Grammar(char right_delimiter_char) : Grammar::base_type(start) {
if (right_delimiter_char == ')') {
left_delimiter = qi::lit('(');
right_delimiter = qi::lit(')');
} else {
left_delimiter = qi::lit('[');
right_delimiter = qi::lit(']');
}
quoted_string = qi::lexeme['"' >> +(qi::char_ - '"') >> '"'];
authority = qi::no_case[qi::lit("AUTHORITY")] >> qi::attr(true) >>
left_delimiter >> quoted_string >> qi::lit(',') >>
quoted_string >> right_delimiter;
number = qi::real_parser<double, number_policies<double>>();
unit = qi::no_case[qi::lit("UNIT")] >> left_delimiter >> quoted_string >>
qi::lit(',') >> number >> -(qi::lit(',') >> authority) >>
right_delimiter;
linear_unit = unit;
angular_unit = unit;
spheroid = qi::no_case[qi::lit("SPHEROID")] >> left_delimiter >>
quoted_string >> qi::lit(',') >> number >> qi::lit(',') >>
number >> -(qi::lit(',') >> authority) >> right_delimiter;
to_wgs84 = qi::no_case[qi::lit("TOWGS84")] >> qi::attr(true) >>
left_delimiter >> number >> // dx
qi::lit(',') >> number >> // dy
qi::lit(',') >> number >> // dz
qi::lit(',') >> number >> // ex
qi::lit(',') >> number >> // ey
qi::lit(',') >> number >> // ez
qi::lit(',') >> number >> // ppm
right_delimiter;
datum = qi::no_case[qi::lit("DATUM")] >> left_delimiter >> quoted_string >>
qi::lit(',') >> spheroid >> -(qi::lit(',') >> to_wgs84) >>
-(qi::lit(',') >> authority) >> right_delimiter;
prime_meridian = qi::no_case[qi::lit("PRIMEM")] >> left_delimiter >>
quoted_string >> qi::lit(',') >> number >>
-(qi::lit(',') >> authority) >> right_delimiter;
axis_direction.add
// All values must be lower case to achieve case insensitive
// matching.
("north", Axis_direction::NORTH)("south", Axis_direction::SOUTH)(
"east", Axis_direction::EAST)("west", Axis_direction::WEST)(
"other", Axis_direction::OTHER);
axis = qi::no_case[qi::lit("AXIS")] >> left_delimiter >> quoted_string >>
qi::lit(',') >> qi::no_case[axis_direction] >> right_delimiter;
twin_axes = qi::attr(true) >> axis >> qi::lit(',') >> axis;
geographic_cs = qi::no_case[qi::lit("GEOGCS")] >> left_delimiter >>
quoted_string >> qi::lit(',') >> datum >> qi::lit(',') >>
prime_meridian >> qi::lit(',') >> angular_unit >>
qi::lit(',') >> twin_axes >> -(qi::lit(',') >> authority) >>
right_delimiter;
parameter = qi::no_case[qi::lit("PARAMETER")] >> left_delimiter >>
quoted_string >> qi::lit(',') >> number >>
-(qi::lit(',') >> authority) >> right_delimiter;
parameters = parameter % qi::lit(',');
projection = qi::no_case[qi::lit("PROJECTION")] >> left_delimiter >>
quoted_string >> -(qi::lit(',') >> authority) >>
right_delimiter;
projected_cs = qi::no_case[qi::lit("PROJCS")] >> left_delimiter >>
quoted_string >> qi::lit(',') >> geographic_cs >>
qi::lit(',') >> projection >>
-(qi::lit(',') >> parameters) >> qi::lit(',') >>
linear_unit >> -(qi::lit(',') >> twin_axes) >>
-(qi::lit(',') >> authority) >> right_delimiter;
horz_cs = projected_cs | geographic_cs;
coordinate_system = horz_cs;
start = coordinate_system;
}
qi::rule<Iterator> left_delimiter;
qi::rule<Iterator> right_delimiter;
qi::rule<Iterator, String()> quoted_string;
qi::rule<Iterator, Authority(), Skipper> authority;
qi::rule<Iterator, double(), Skipper> number;
qi::rule<Iterator, Unit(), Skipper> unit;
qi::rule<Iterator, Unit(), Skipper> linear_unit;
qi::rule<Iterator, Unit(), Skipper> angular_unit;
qi::rule<Iterator, Spheroid(), Skipper> spheroid;
qi::rule<Iterator, Towgs84(), Skipper> to_wgs84;
qi::rule<Iterator, Datum(), Skipper> datum;
qi::rule<Iterator, Prime_meridian(), Skipper> prime_meridian;
qi::symbols<char, Axis_direction> axis_direction;
qi::rule<Iterator, Axis(), Skipper> axis;
qi::rule<Iterator, Twin_axes(), Skipper> twin_axes;
qi::rule<Iterator, Geographic_cs(), Skipper> geographic_cs;
qi::rule<Iterator, Projection_parameter(), Skipper> parameter;
qi::rule<Iterator, Projection_parameters(), Skipper> parameters;
qi::rule<Iterator, Projection(), Skipper> projection;
qi::rule<Iterator, Projected_cs(), Skipper> projected_cs;
qi::rule<Iterator, Coordinate_system(), Skipper> horz_cs;
qi::rule<Iterator, Coordinate_system(), Skipper> coordinate_system;
qi::rule<Iterator, Coordinate_system(), Skipper> start;
};
} // namespace wkt_parser
} // namespace srs
} // namespace gis
bool gis::srs::wkt_parser::parse_wkt(
srid_t srid, const char *begin, const char *end,
gis::srs::wkt_parser::Coordinate_system *cs) {
// gis::srs::parse_wkt() should have filtered these out already
assert(begin != nullptr && begin < (end - 1));
namespace wp = gis::srs::wkt_parser;
bool res = false;
const char *it = begin;
const char *delimiter = end;
delimiter--;
while (delimiter > begin && std::isspace(*delimiter)) delimiter--;
wp::Grammar<decltype(delimiter), boost::spirit::ascii::space_type> g(
*delimiter);
try {
res = !boost::spirit::qi::phrase_parse(it, end, g,
boost::spirit::ascii::space, *cs);
if (it != end || res) {
my_error(ER_SRS_PARSE_ERROR, MYF(0), srid);
res = true;
}
} catch (...) {
my_error(ER_SRS_PARSE_ERROR, MYF(0), srid);
res = true;
}
return res;
}
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