cnorxz/src/include/ranges/x_to_string.h

#ifndef __x_to_string_h__
#define __x_to_string_h__

#include <string>
#include <vector>
#include <array>
#include <tuple>
#include <algorithm>

#include "ranges/dynamic_meta.h"

namespace MultiArrayHelper
{
    template <typename T>
    inline std::string xToString(const T& x);


    template <>
    inline std::string xToString<char>(const char& x);

    template <>
    inline std::string xToString<std::string>(const std::string& x);

    using MultiArrayTools::DynamicMetaT;
    
    template <>
    inline std::string xToString<DynamicMetaT>(const DynamicMetaT& x);
    
    template <typename T>
    inline std::string xToString(const vector<T>& x);

    template <typename T, size_t N>
    inline std::string xToString(const std::array<T,N>& x);

    template <typename... Ts>
    inline std::string xToString(const std::tuple<Ts...>& tp);

    // TEMPLATE CODE

    template <typename T>
    inline std::string xToString(const T& x)
    {
        std::string out = std::to_string(x);
        std::replace(out.begin(), out.end(), ',', '.');
	return out;
    }

    template <size_t N>
    struct TupleToString
    {
	template <typename... Ts>
	static inline std::string mk(const std::tuple<Ts...>& tp)
	{
	    return TupleToString<N-1>::mk(tp) + "," + xToString(std::get<N>(tp));
	}
    };

    template <>
    struct TupleToString<0>
    {
	template <typename... Ts>
	static inline std::string mk(const std::tuple<Ts...>& tp)
	{
	    return xToString(std::get<0>(tp));
	}
    };

    template <>
    inline std::string xToString<char>(const char& x)
    {
	std::string out = "";
	return out += x;
    }

    template <>
    inline std::string xToString<std::string>(const std::string& x)
    {
	return x;
    }

    template <>
    inline std::string xToString<DynamicMetaT>(const DynamicMetaT& x)
    {
        std::string out = "[";
        for(size_t i = 0; i != x.size(); ++i){
            out += x[i].first;
            out += ",";
        }
        //out.pop_back();
        out.back() = ']';
        return out;
    }
    
    template <typename T>
    inline std::string xToString(const vector<T>& x)
    {
	std::string out = "[";
	for(auto& y: x){
	    out += xToString(y) + ",";
	}
	//out.pop_back();
	out.back() = ']';
	return out;
    }

    template <typename T, size_t N>
    inline std::string xToString(const std::array<T,N>& x)
    {
	std::string out = "[";
	for(auto& y: x){
	    out += xToString(y) + ",";
	}
	//out.pop_back();
	out.back() = ']';
	return out;
    }

    template <typename... Ts>
    inline std::string xToString(const std::tuple<Ts...>& tp)
    {
	return "{" + TupleToString<sizeof...(Ts)-1>::mk(tp) + "}";
    }

}

#endif