// spiritvariant.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

struct TRIV
{
    int v;
};

struct TRIVT
{
    int v;
    int t;
};

struct TRIVN
{
    int v;
    int n;
};

BOOST_FUSION_ADAPT_STRUCT(
    TRIV,
    (int, v)
)

BOOST_FUSION_ADAPT_STRUCT(
    TRIVT,
    (int, v),
    (int, t)
)

BOOST_FUSION_ADAPT_STRUCT(
    TRIVN,
    (int, v),
    (int, n)
)

struct TRI
{
    int v = 0;
    int t = 0;
    int n = 0;

    TRI() { };
    TRI(int V, int T, int N) : v(V), t(T), n(N) { };
    TRI(TRIV t) : v(t.v) { };
    TRI(TRIVT t) : v(t.v), t(t.t) { };
    TRI(TRIVN t) : v(t.v), n(t.n) { };
};

BOOST_FUSION_ADAPT_STRUCT(
    TRI,
    (int, v),
    (int, t),
    (int, n)
)

std::ostream& operator<<(std::ostream &out, const TRI &type)
{
    return out << "{ " << type.v << ", " << type.t << ", " << type.n << " }";
}

using namespace std;
namespace x3 = boost::spirit::x3;

namespace
{
    x3::rule<class tvrule, TRIV>
        tvrule = "tvrule";
    auto const tvrule_def
        = x3::lexeme[x3::int_];
        ;
    BOOST_SPIRIT_DEFINE(tvrule);

    x3::rule<class tvtrule, TRIVT>
        tvtrule = "tvtrule";
    auto const tvtrule_def
        = x3::lexeme[x3::int_ >> x3::lit("/") >> x3::int_];
        ;
    BOOST_SPIRIT_DEFINE(tvtrule);

    x3::rule<class tvnrule, TRIVN>
        tvnrule = "tvnrule";
    auto const tvnrule_def
        = x3::lexeme[x3::int_ >> x3::lit("//") >> x3::int_];
    BOOST_SPIRIT_DEFINE(tvnrule);

    x3::rule<class trrule, TRI>
        trrule = "trrule";
    auto const trrule_def
        = x3::lexeme[x3::int_ >> x3::lit('/') >> x3::int_ >> x3::lit('/') >> x3::int_];
    BOOST_SPIRIT_DEFINE(trrule);

    x3::rule<class trule, TRI>
        trule = "trule";
    auto const trule_def
        = tvrule;
    BOOST_SPIRIT_DEFINE(trule);
}

int main()
{
    auto in = "1/2/2"s;

    auto i = in.begin();
    x3::phrase_parse(i, in.end(), trule
    [
        ([](auto& ctx)
        {
            cout << x3::_attr(ctx) << endl;
        })
    ], x3::blank);

    return 0;
}