boost-fusion

I'm looking for the simplest way to implement variadic function which takes list of boost::spirit::qi rules and expands the list into expression of format: rule1 | rule2 | rule3 |.... Let's assume that the rules synthesize no attribute. Your kind help is very much appreciated. #include <boost/config/warning_disable.hpp> #include <boost/spirit/include/qi.hpp> #include <string> #include <iostream> #include <boost/spirit/include/phoenix_operator.hpp> namespace qi = boost::spirit::qi; namespace ph = boost::phoenix; namespace ascii = boost::spirit::ascii; using boost::spirit::qi::phrase_parse;

I have an compilation issue with Spirit Qi where it complains that value_type is not a member of identifier . For some reason, Qi's attribute system considers identifier to be a container type, and tries to enumerate it's value type. This is a similar issue as in this question , however, I believe the cause is the single member struct and may be related to this bug . #include <string> #include <boost/spirit/include/qi.hpp> #include <boost/fusion/include/adapt_struct.hpp> using namespace boost::spirit::qi; struct identifier { std::wstring name; }; struct problem { identifier _1; identifier _2;