#ifndef _PARET_HPP
#define _PARET_HPP
#include <string>


class paret {
public:
  enum {NORD, EST, SUD, OEST, NO_DIR};
  paret(int p = NO_DIR) throw() : p_(p) {}
  paret(const string& s) throw() {
     p_ = NO_DIR;
     if (s == "nord" || s == "NORD" || s == "N") p_ = NORD;
     if (s == "est" || s == "EST" || s == "E")   p_ = EST;
     if (s == "sud" || s == "SUD" || s == "S")   p_ = SUD;
     if (s == "oest" || s == "OEST" || s == "W") p_ = OEST;
  }
  paret& operator++() throw() {
    p_ = (p_ == NO_DIR) ? NO_DIR : p_ + 1;
    return *this;
  }
  operator int() const throw() {
    return p_;
  }
private:
  int p_;
};
#endif