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nci/suif/suif2b/basesuif/suifkernel/char_source.h

Go to the documentation of this file.

#ifndef SUIFKERNEL__CHARSOURCE_H
#define SUIFKERNEL__CHARSOURCE_H

#include <iostream.h>


class CharSource {
 public:
  virtual int get(void) = 0;
  virtual int peek(void) = 0;
};



class StdCharSource : public CharSource {
 private:
  const char*   _prompt;
  bool          _isNewline;
  int           _cbuf;
  bool          _isBufFull;
 public:
  StdCharSource(const char* prompt = NULL);
  virtual int get(void);
  virtual int peek(void);
};



/*
 * An IstreamCharSource is a CharSource whose characters come
 * from an istream.
 */
class IstreamCharSource : public CharSource {
 private:
  istream       *_istream;
 public:
  IstreamCharSource(istream*);
  virtual ~IstreamCharSource(void);
  virtual int get(void);
  virtual int peek(void);
};


#endif /* SUIFKERNEL__CHARSOURCE_H */

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