osrm-backend/include/server/api/route_parameters_grammar.hpp
2016-04-05 22:58:32 +02:00

94 lines
3.1 KiB
C++

#ifndef ROUTE_PARAMETERS_GRAMMAR_HPP
#define ROUTE_PARAMETERS_GRAMMAR_HPP
#include "engine/api/route_parameters.hpp"
#include "server/api/base_parameters_grammar.hpp"
#include <boost/spirit/include/qi_lit.hpp>
#include <boost/spirit/include/qi_bool.hpp>
#include <boost/spirit/include/qi_grammar.hpp>
#include <boost/spirit/include/qi_action.hpp>
#include <boost/spirit/include/qi_optional.hpp>
namespace osrm
{
namespace server
{
namespace api
{
namespace qi = boost::spirit::qi;
struct RouteParametersGrammar : public BaseParametersGrammar
{
using Iterator = std::string::iterator;
using StepsT = bool;
using AlternativeT = bool;
using GeometriesT = engine::api::RouteParameters::GeometriesType;
using OverviewT = engine::api::RouteParameters::OverviewType;
using UturnsT = std::vector<boost::optional<bool>>;
RouteParametersGrammar() : BaseParametersGrammar(root_rule, parameters)
{
const auto set_geojson_type = [this]()
{
parameters.geometries = engine::api::RouteParameters::GeometriesType::GeoJSON;
};
const auto set_polyline_type = [this]()
{
parameters.geometries = engine::api::RouteParameters::GeometriesType::Polyline;
};
const auto set_simplified_type = [this]()
{
parameters.overview = engine::api::RouteParameters::OverviewType::Simplified;
};
const auto set_full_type = [this]()
{
parameters.overview = engine::api::RouteParameters::OverviewType::Full;
};
const auto set_false_type = [this]()
{
parameters.overview = engine::api::RouteParameters::OverviewType::False;
};
const auto set_steps = [this](const StepsT steps)
{
parameters.steps = steps;
};
const auto set_alternative = [this](const AlternativeT alternative)
{
parameters.alternative = alternative;
};
const auto set_uturns = [this](UturnsT &uturns)
{
parameters.uturns = std::move(uturns);
};
alternative_rule = qi::lit("alternative=") >> qi::bool_;
steps_rule = qi::lit("steps=") >> qi::bool_;
geometries_rule = qi::lit("geometries=geojson")[set_geojson_type] |
qi::lit("geometries=polyline")[set_polyline_type];
overview_rule = qi::lit("overview=simplified")[set_simplified_type] |
qi::lit("overview=full")[set_full_type] |
qi::lit("overview=false")[set_false_type];
uturns_rule = qi::lit("uturns=") >> -qi::bool_ % ";";
route_rule = steps_rule[set_steps] | alternative_rule[set_alternative] | geometries_rule |
overview_rule | uturns_rule[set_uturns];
root_rule = -((base_rule | route_rule) % '&');
}
engine::api::RouteParameters parameters;
private:
qi::rule<Iterator> root_rule, route_rule, geometries_rule, overview_rule;
qi::rule<Iterator, UturnsT()> uturns_rule;
qi::rule<Iterator, StepsT()> steps_rule;
qi::rule<Iterator, AlternativeT()> alternative_rule;
};
}
}
}
#endif