encoder.hpp

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#if !defined(TETENGO_TEXT_ENCODER_HPP)
#define TETENGO_TEXT_ENCODER_HPP
 
#include <boost/core/noncopyable.hpp>
 
 
namespace tetengo::text
{
    class encoder_base : private boost::noncopyable
    {
    public:
        // constructors and destructor
 
        virtual ~encoder_base() = 0;
    };
 
 
    template <typename Encoding>
    class encoder : public encoder_base
    {
    public:
        // types
 
        using encoding_type = Encoding;
 
        using string_type = typename encoding_type::string_type;
 
        using string_view_type = typename encoding_type::string_view_type;
 
        using encoded_string_type = typename encoding_type::encoded_string_type;
 
        using encoded_string_view_type = typename encoding_type::encoded_string_view_type;
 
 
        // static functions
 
        [[nodiscard]] static const encoder& instance()
        {
            static const encoder singleton{};
            return singleton;
        }
 
 
        // constructors and destructor
 
        virtual ~encoder() = default;
 
 
        // functions
 
        [[nodiscard]] encoded_string_type encode(const string_view_type& string_) const
        {
            return encoding_type::instance().encode(string_);
        }
 
        [[nodiscard]] string_type decode(const encoded_string_view_type& encoded_string) const
        {
            return encoding_type::instance().decode(encoded_string);
        }
    };
 
 
}
 
 
#endif