environmentCodec.h

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#ifndef ENVIRONMENT_CODEC_H
#define ENVIRONMENT_CODEC_H

#include "coordinateCtrl.h"
#include <deque>


class EnvironmentCodecStream {

  virtual char get1ch(void) = 0;
  void ungetch(void);

public:
  enum { Fail = -1, Complete = 0, All = -1, };
  std::deque<char> buffer;      
  virtual ~EnvironmentCodecStream(void) {}

  virtual bool is_open(void) = 0;

  virtual bool eof(void) = 0;

  void read1ch(void);

  void clearBuffer(int n = All);
};


extern int encodeLineFeedFromText(EnvironmentCodecStream& codec, int offset);

extern int encodeSpaceFromText(EnvironmentCodecStream& codec, int offset,
                               int require_size = 0);

extern int encodeNumericFromText(EnvironmentCodecStream& codec, int offset,
                                 int* numeric);

extern int encodeAPointFromText(EnvironmentCodecStream& codec, int offset,
                                VXV::Grid3D& point);

extern int encodePointsFromText(EnvironmentCodecStream& codec, int offset,
                                std::vector<VXV::Grid3D>& points);

extern int encodePolygonFromText(EnvironmentCodecStream& codec, int offset,
                                 std::vector<CoordinateCtrl::polygon_t>&
                                 polygons);

#endif /* !ENVIRONMENT_CODEC_H */