bbbbacb073
Takes a stricter aproach for whitelisting / blacklisting restrictions: - uses `restriction=` - uses more specific `restriction:<type>=` - uses `except=<type>` to invert Where `type` is the type of transportation to restrict, e.g. `motorcar`. https://github.com/Project-OSRM/osrm-backend/issues/2833
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
#ifndef RESTRICTION_PARSER_HPP
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#define RESTRICTION_PARSER_HPP
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#include "extractor/restriction.hpp"
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#include <boost/optional/optional.hpp>
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#include <string>
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#include <vector>
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namespace osmium
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{
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class Relation;
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}
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namespace osrm
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{
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namespace extractor
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{
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class ScriptingEnvironment;
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/**
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* Parses the relations that represents turn restrictions.
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*
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* Currently only restrictions where the via objects is a node are supported.
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* from via to
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* ------->(x)-------->
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*
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* While this class does not directly invoke any lua code _per relation_ it does
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* load configuration values from the profile, that are saved in variables.
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* Namely ```use_turn_restrictions``` and ```get_restrictions```.
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*
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* The restriction is represented by the osm id of the from way, the osm id of the
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* to way and the osm id of the via node. This representation must be post-processed
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* in the extractor to work with the edge-based data-model of OSRM:
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* Since the from and to way share the via-node a turn will have the following form:
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* ...----(a)-----(via)------(b)----...
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* So it can be represented by the tripe (a, via, b).
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*/
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class RestrictionParser
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{
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public:
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RestrictionParser(ScriptingEnvironment &scripting_environment);
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boost::optional<InputRestrictionContainer> TryParse(const osmium::Relation &relation) const;
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private:
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bool ShouldIgnoreRestriction(const std::string &except_tag_string) const;
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std::vector<std::string> restrictions;
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bool use_turn_restrictions;
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};
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}
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}
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#endif /* RESTRICTION_PARSER_HPP */
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