campo-sirio/include/memo.h

#ifndef __MEMO_H
#define __MEMO_H

#ifndef __TEXT_H 
#include <text.h>
#endif                            

// quick and dirty memofile class
// to be used with isamfiles
// memo field is a long integer, memo file is <isamname>.mem

class TMemo_file : public TObject
{
  bool      _dirty;
  FILE*     _fp;        
  long      _current;
  TFilename _fname;             
  bool      _isnew;                
  long      _id_max;
  long      _next_ofs;
  
  bool  _find_id(long id);
  
public:
  
  // retrieves text with specified ID (or last one passed);
  // returns TRUE if successful
  bool get_field(TTextfile& t, long id = -1l);   
  // sets field to specified text; if not present
  // returns new ID; if error returns -1, otherwise 0
  long set_field(const TTextfile& t, long id = -1l);
  // removes field and pakkettates file
  bool remove_field(long id);
  // calls editor to edit text (specified as mem into config)
  bool edit_field(long id = -1l);
  
  // returns the maximum ID used (<= n. of fields in file)                                       
  long  max_id() const { return _id_max; }               
  
  // must be passed the basename of archive
  TMemo_file(const char* archive);
  ~TMemo_file();
};                       

#endif