// An action (regexp) to be takenclass Action{public:    ~Action();        String pattern; // The pattern to search for    String commands; // Commands to be run OR replacement pattern        typedef enum {        Trigger, Replacement, Gag    } action_t;        action_t type;    void *embedded_sub;    void compile();    void checkMatch(const char*); // run commands if matching    void checkReplacement(char *buf, int& len, char **new_out);        // Take a string like "^blah" dosomething and produce an Action    // if NULL, error ocurred:  error result will be in res    static Action* parse(const char *buf, String& res, action_t type);    private:    Action(const char *_pattern, const char *_commands, action_t type);};