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use boost:bimap to store key/name mapping for inverse searching caps

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This commit is contained in:
artemp 2016-11-16 16:04:54 +01:00
parent 69b79b303f
commit 4588c23274
1 changed files with 20 additions and 14 deletions
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34
include/mapnik/json/json_grammar_config.hpp
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@ -26,47 +26,53 @@
#pragma GCC diagnostic push
#include <mapnik/warning_ignore.hpp>
#include <boost/spirit/home/x3.hpp>
#include <boost/bimap.hpp>
#include <boost/bimap/set_of.hpp>
#include <boost/bimap/unordered_set_of.hpp>
#include <boost/assign/list_of.hpp>
#pragma GCC diagnostic pop
#include <unordered_map>
namespace mapnik { namespace json {
enum well_known_names
{
type = 1,
id = 1,
type,
features,
geometry,
coordinates,
properties,
id
properties
};
constexpr char const* wkn_to_string(well_known_names val)
{
switch(val)
{
case id: return "id";
case type: return "type";
case features: return "features";
case geometry: return "geometry";
case coordinates: return "coordinates";
case properties: return "properties";
case id: return "id";
default: return "unknown";
}
}
struct keys_tag;
using keys_map = std::unordered_map<std::string, int>;
using keys_map = boost::bimap<boost::bimaps::unordered_set_of<std::string>,
boost::bimaps::set_of<int>>;
inline keys_map get_keys()
{
keys_map keys = {
{"type", well_known_names::type},
{"geometry", well_known_names::geometry},
{"coordinates", well_known_names::coordinates},
{"properties", well_known_names::properties},
{"id", well_known_names::id}
};
keys_map keys = boost::assign::list_of<keys_map::relation>
("type", well_known_names::type)
("features", well_known_names::features)
("geometry", well_known_names::geometry)
("coordinates", well_known_names::coordinates)
("properties", well_known_names::properties)
("id", well_known_names::id)
;
return keys;
}