Messenger.h

#ifndef Messenger_h
#define Messenger_h
#define MESSENGERBUFFERSIZE 64

#include <inttypes.h>

extern "C" {
// callback function
    typedef void (*messengerCallbackFunction)(void);
}


class Messenger
{

public:
 Messenger();
  Messenger(char separator);
  int readInt();
  long readLong(); // Added based on a suggestion by G. Paolo Sani
  char readChar();
  void copyString(char *string, uint8_t size);
  uint8_t checkString(char *string);
  uint8_t process(int serialByte);
  uint8_t available();
  void attach(messengerCallbackFunction newFunction);
  char buffer[MESSENGERBUFFERSIZE]; // Buffer that holds the data
  
private:
  void init(char separator);
  uint8_t next();
  void reset();
  
  uint8_t messageState;
  
  messengerCallbackFunction callback;
  
  char* current; // Pointer to current data
  char* last;
  
  char token[2];
  uint8_t dumped;
  
  uint8_t bufferIndex; // Index where to write the data
  uint8_t bufferLength; // The length of the buffer (defaults to 64)
  uint8_t bufferLastIndex; // The last index of the buffer
};

#endif