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2d957cd46f
Summary: resolves T12767 Reviewers: ivica Reviewed By: ivica Subscribers: miljen Tags: #spacetime Maniphest Tasks: T12767 Differential Revision: https://repo.mireo.local/D25970
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
#include <boost/spirit/home/x3.hpp>
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template <typename T>
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static constexpr auto to_(T& arg) {
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return [&](auto& ctx) { arg = boost::spirit::x3::_attr(ctx); };
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}
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template <typename T, typename Parser>
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static constexpr auto as_(Parser&& p){
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return boost::spirit::x3::rule<struct _, T>{} = std::forward<Parser>(p);
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}
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void test_uri_parser(){
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struct authority_path { std::string host, port, path; };
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std::vector<authority_path> _servers;
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std::string brokers = "iot.fcluster.mireo.hr:1234, fc/nesto";
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std::string default_port = "8883";
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namespace x3 = boost::spirit::x3;
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std::string host, port, path;
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// loosely based on RFC 3986
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auto unreserved_ = x3::char_("-a-zA-Z_0-9._~");
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auto digit_ = x3::char_("0-9");
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auto separator_ = x3::char_(',');
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auto host_ = as_<std::string>(+unreserved_)[to_(host)];
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auto port_ = as_<std::string>(':' >> +digit_)[to_(port)];
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auto path_ = as_<std::string>('/' >> *unreserved_)[to_(path)];
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auto uri_ = *x3::omit[x3::space] >> (host_ >> *port_ >> *path_) >>
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(*x3::omit[x3::space] >> x3::omit[separator_ | x3::eoi]);
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for (auto b = brokers.begin(); b != brokers.end(); ) {
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host.clear(); port.clear(); path.clear();
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if (phrase_parse(b, brokers.end(), uri_, x3::eps(false))) {
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_servers.push_back({
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std::move(host), port.empty() ? default_port : std::move(port),
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std::move(path)
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});
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}
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else b = brokers.end();
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}
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}
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