www.pudn.com > PocketC.zip > ToDo.c

// ToDo Reader 
 
#define Description  0 
#define Note    1 
#define Priority  2 
#define Day      3 
#define Month    4 
#define Year    5 
 
// memory for a todo structure 
string todoStruct, _1; 
int _2, _3, _4, _5; 
 
readRecord(pointer pTodo, int id) { 
  int packedDate; 
   
  dbrec(id); 
  if (dbreadx(&packedDate, "i2") != 1) { 
    return 0; // failed to read 
  } 
   
  if (packedDate == 0xffff) { 
    // date is unspecified 
    pTodo[Day] = 0; 
    pTodo[Month] = 0; 
    pTodo[Year] = 0; 
  } else { 
    // unpack the date structure 
    pTodo[Day] = packedDate & 0x1f; 
    pTodo[Month] = (packedDate >> 5) & 0xf; 
    pTodo[Year] = ((packedDate >> 9) & 0x7f) + 1904; 
  } 
     
  pTodo[Priority] = dbread('c'); 
  dbreadx(pTodo, "szsz"); 
  return 1; 
} 
 
writeRecord(pointer pTodo, int id) { // set id = -1 to add 
  int packedDate, len; 
   
  dbrec(id); 
  if (pTodo[Year] == 0) 
    packedDate = 0xffff; 
  else 
    packedDate = (((pTodo[Year] - 1904) & 0x7f) << 9) | ((pTodo[Month] & 0xf) << 5) | 
      (pTodo[Day] & 0x1f); 
     
  if (dbwritex(&packedDate, "i2") != 1) { 
    return 0; 
  } 
   
  dbwrite((char)pTodo[Priority]); 
  dbwritex(pTodo, "szsz"); 
  return 1; 
} 
   
 
main() { 
  int nRecs, i, d; 
  pointer pTodo; 
   
  pTodo = &todoStruct; // so that we can access our items by array index 
   
  dbopen("ToDoDB"); 
  nRecs = dbnrecs(); 
  puts("NumRecs: " + nRecs + "\n"); 
  for (i=0;i: " + pTodo[Description] + "\n"); 
      } 
    } 
  } 
   
  // create a todo item 
  d = date(0); 
  pTodo[Year] = d / 10000; 
  pTodo[Month] = (d % 10000) / 100; 
  pTodo[Day] = (d % 100); 
  pTodo[Priority] = 1; 
  pTodo[Description] = "Register PocketC"; 
  pTodo[Note] = "Only 18.50"; 
  if (confirm("Add PocketC reminder?")) { 
    if (!writeRecord(pTodo, -1)) 
      puts("Failed to write Todo"); 
  } 
   
  dbclose(); 
}