Hello, I'm currently writing simple server implementation and want to parse GET request header and load passed attributes. I though with boost spirit this will be very simple task but i got some errors I can't understand. My function (these are my first lines of code using spirit): bool GET_parse(std::string &str, std::vector<std::string> &keys, std::vector<std::string> &values) { using namespace boost::spirit; uint_parser<unsigned,10,1,1> my_digit; rule<> request,method,path,version_id,stri,web_sign,attribs; request = method >> path >> version_id; method = as_lower_d["get"];//method = str_p["GET"]; version_id = str_p("HTTP") >> ch_p('/') >> my_digit >> ch_p('.')

...

my_digit; path = ch_p('/') >> !(stri >> *(ch_p('/') >> stri) >> !(ch_p('?') attribs)); stri = +(web_sign); web_sign = alnum_p | ch_p('_') | ch_p('_') | ch_p('.'); attribs = *((+alnum_p)[push_back_a(keys)] >> ch_p('=') >> (+alnum_p)[push_back_a(values)] >> !ch_p('&'));

return parse(str.c_str(), request, space_p).full; } and output (for me totally unreadable): In member function 'typename boost::spirit::parser_result<DerivedT, ScannerT>::type boost::spirit::impl::rule_base<DerivedT, EmbedT, T0, T1, T2>::parse_main(const ScannerT&) const [with ScannerT = boost::spirit::scanner<const char*, boost::spirit::scanner_policies<boost::spirit::skipper_iteration_policy<boost::spirit::iteration_policy>, boost::spirit::match_policy, boost::spirit::action_policy> >, DerivedT = boost::spirit::rule<boost::spirit::nil_t, boost::spirit::nil_t, boost::spirit::nil_t>, EmbedT = const boost::spirit::rule<boost::spirit::nil_t, boost::spirit::nil_t, boost::spirit::nil_t>&, T0 = boost::spirit::nil_t, T1 = boost::spirit::nil_t, T2 = boost::spirit::nil_t]': /usr/include/boost/spirit/core/non_terminal/impl/rule.ipp:171: instantiated from 'typename boost::spirit::parser_result<DerivedT, ScannerT>::type boost::spirit::impl::rule_base<DerivedT, EmbedT, T0, T1, T2>::parse(const ScannerT&) const [with ScannerT = boost::spirit::scanner<const char*, boost::spirit::scanner_policies<boost::spirit::skipper_iteration_policy<boost::spirit::iteration_policy>, boost::spirit::match_policy, boost::spirit::action_policy> >, DerivedT = boost::spirit::rule<boost::spirit::nil_t, boost::spirit::nil_t, boost::spirit::nil_t>, EmbedT = const boost::spirit::rule<boost::spirit::nil_t, boost::spirit::nil_t, boost::spirit::nil_t>&, T0 = boost::spirit::nil_t, T1 = boost::spirit::nil_t, T2 = boost::spirit::nil_t]' /usr/include/boost/spirit/core/scanner/impl/skipper.ipp:131: instantiated from 'static boost::spirit::parse_info<IteratorT> boost::spirit::impl::phrase_parser<boost::spirit::space_parser>::parse(const IteratorT&, const IteratorT&, const ParserT&, const boost::spirit::space_parser&) [with IteratorT = const char*, ParserT = boost::spirit::rule<boost::spirit::nil_t, boost::spirit::nil_t, boost::spirit::nil_t>]' /usr/include/boost/spirit/core/scanner/impl/skipper.ipp:153: instantiated from 'boost::spirit::parse_info<IteratorT> boost::spirit::parse(const IteratorT&, const IteratorT&, const boost::spirit::parser<DerivedT>&, const boost::spirit::parser<SkipT>&) [with IteratorT = const char*, ParserT = boost::spirit::rule<boost::spirit::nil_t, boost::spirit::nil_t, boost::spirit::nil_t>, SkipT = boost::spirit::space_parser]' /usr/include/boost/spirit/core/scanner/impl/skipper.ipp:171: instantiated from 'boost::spirit::parse_info<const CharT*> boost::spirit::parse(const CharT*, const boost::spirit::parser<DerivedT>&, const boost::spirit::parser<SkipT>&) [with CharT = char, ParserT = boost::spirit::rule<boost::spirit::nil_t, boost::spirit::nil_t, boost::spirit::nil_t>, SkipT = boost::spirit::space_parser]' serwer_www.cpp:52: instantiated from here /usr/include/boost/spirit/core/non_terminal/impl/rule.ipp:189: error: no matching function for call to 'boost::spirit::impl::abstract_parser<boost::spirit::scanner<const char*, boost::spirit::scanner_policies<boost::spirit::iteration_policy, boost::spirit::match_policy, boost::spirit::action_policy> >, boost::spirit::nil_t>::do_parse_virtual(const boost::spirit::scanner<const char*, boost::spirit::scanner_policies<boost::spirit::skipper_iteration_policy<boost::spirit::iteration_policy>, boost::spirit::match_policy, boost::spirit::action_policy> >&)' /usr/include/boost/spirit/core/non_terminal/impl/rule.ipp:213: note: candidates are: typename boost::spirit::match_result<ScannerT, AttrT>::type boost::spirit::impl::abstract_parser<ScannerT, AttrT>::do_parse_virtual(const ScannerT&) const [with ScannerT = boost::spirit::scanner<const char*, boost::spirit::scanner_policies<boost::spirit::iteration_policy, boost::spirit::match_policy, boost::spirit::action_policy> >, AttrT = boost::spirit::nil_t] can you tell me where my code is wrong and why? -- Cheers, Michał Nowotka