boost msm class? -

i newbi boost msm , boost in general. somehow encapsulate the:

• event structures
• statemahine structure containing transition table structure , state structures

within class.

how can that?

// events struct event1 {};    // front-end: define fsm structure  struct my_machine_ : public msm::front::state_machine_def<my_machine_> {     // list of fsm states     struct state1 : public msm::front::state<>      {         // every (optional) entry/exit methods event passed.         template <class event,class fsm>         void on_entry(event const&,fsm& ) {std::cout << "entering: state1" << std::endl;}         template <class event,class fsm>         void on_exit(event const&,fsm& ) {std::cout << "leaving: state1" << std::endl;}     };      struct state2 : public msm::front::state<>      {          template <class event,class fsm>         void on_entry(event const& ,fsm&) {std::cout << "entering: state3" << std::endl;}         template <class event,class fsm>         void on_exit(event const&,fsm& ) {std::cout << "leaving: state3" << std::endl;}       };      // initial state of player sm. must defined     typedef state1 initial_state;      typedef my_machine_ p; // makes transition table cleaner      // transition table     struct transition_table : mpl::vector<         //    start     event         next      action               guard         //  +---------+-------------+---------+---------------------+----------------------+         row < state1  , event1      , state2                                               >,         row < state2  , event1      , state1                                           >     > {};  }; 

to implement member of nested use:

// header file struct foo {   struct nested {     void mem();   }; }; // cpp file void foo::nested::mem() {   // implementation goes here }