#include "util/conditional_restrictions.hpp" #include #include #include namespace osrm::util { #ifndef NDEBUG // Debug output stream operators for use with BOOST_SPIRIT_DEBUG inline std::ostream &operator<<(std::ostream &stream, const ConditionalRestriction &restriction) { return stream << restriction.value << "=" << restriction.condition; } #endif } // namespace osrm::util BOOST_FUSION_ADAPT_STRUCT(osrm::util::ConditionalRestriction, (std::string, value)(std::string, condition)) namespace osrm::util { namespace detail { namespace { namespace qi = boost::spirit::qi; } // namespace template struct conditional_restrictions_grammar : qi::grammar()> { // http://wiki.openstreetmap.org/wiki/Conditional_restrictions conditional_restrictions_grammar() : conditional_restrictions_grammar::base_type(restrictions) { using qi::_1; using qi::_val; using qi::lit; // clang-format off restrictions = restriction % ';' ; restriction = value >> '@' >> condition ; value = +(qi::char_ - '@') ; condition = *qi::blank >> (lit('(') >> qi::as_string[qi::no_skip[*~lit(')')]][_val = _1] >> lit(')') | qi::as_string[qi::no_skip[*~lit(';')]][_val = _1] ) ; // clang-format on BOOST_SPIRIT_DEBUG_NODES((restrictions)(restriction)(value)(condition)); } qi::rule()> restrictions; qi::rule restriction; qi::rule value, condition; }; } // namespace detail std::vector ParseConditionalRestrictions(const std::string &str) { auto it(str.begin()), end(str.end()); const detail::conditional_restrictions_grammar static grammar; std::vector result; bool ok = boost::spirit::qi::phrase_parse(it, end, grammar, boost::spirit::qi::blank, result); if (!ok || it != end) return std::vector(); return result; } } // namespace osrm::util