Repo created

generator/maxspeeds_parser.hpp

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+#pragma once
+
+#include "routing_common/maxspeed_conversion.hpp"
+
+#include "platform/measurement_utils.hpp"
+
+#include <cstdint>
+#include <string>
+
+namespace generator
+{
+/// \brief Obtains |speed| and |units| by road category based on
+/// the table at https://wiki.openstreetmap.org/wiki/Speed_limits
+/// This function should be updated regularly. Last update: 23.10.18.
+/// \returns true if |speed| and |units| is found for |category| and these fields are filled
+/// and false otherwise.
+/// \note For example by passing string "RU:urban", you'll get
+/// speed = 60 and units = Units::Metric.
+/// \note If the method returns true the field |speed| may be filled with |kNoneMaxSpeed| value.
+/// It means no speed limits for the |category|. It is currently the case for some road categories
+/// in Germany.
+bool RoadCategoryToSpeed(std::string const & category, routing::SpeedInUnits & speed);
+
+/// \brief Tries to convert the value of tag maxspeed to speed in appropriate units.
+/// \returns false in case of error and true if the conversion is successful.
+/// \note speed.m_speed will be filled with kNoneMaxSpeed or kWalkMaxSpeed if
+/// maxspeedValue is equal to "none" or "walk". The value of speed.m_units does not
+/// matter in this case.
+bool ParseMaxspeedTag(std::string const & maxspeedValue, routing::SpeedInUnits & speed);
+
+std::string UnitsToString(measurement_utils::Units units);
+
+/// \brief Converts string to measurement_utils::Units.
+/// \note |units| should be "Metric" or "Imperial".
+measurement_utils::Units StringToUnits(std::string_view units);
+}  // namespace generator