// import a historic data file from .csv

string InName = "Data\\DAT_ASCII_EURUSD_M1_2013.csv";  // name of the CSV file
string OutName = "History\\EURUSD_2010x.bar";

string readTick(string content,TICK* tick)
{
// tokenize a single line  
  char* line = strtok(content,"\n");
  if(!line) return 0;
  
// read "20100103 170000;1.430100;1.430400;1.430100;1.430400;0"
  int Year, Month, Day, Hour, Minute, Second; 
  if(10 != sscanf(line,"%4d%2d%2d %2d%2d%2d;%f;%f;%f;%f;",
    &Year, &Month, &Day, &Hour, &Minute, &Second,
    &tick->fOpen, &tick->fHigh, &tick->fLow, &tick->fClose)) 
    return 0;
    
// store the time in DATE format (ConvertTime is defined in Convert.c)
// make sure that the time is UTC time!!
  tick->time = ConvertTime(Year,Month,Day,Hour,Minute,Second);

// return pointer to next line
  return line+strlen(line)+1;
}

function main()
{
  if(!file_length(InName))
    quit("Data file not found!");
    
// allocate TICK array    
  int maxticks = 60*24*365; // 1 year
  TICK* ticks = malloc(maxticks*sizeof(TICK)),
    tick = ticks+maxticks; 

// read ticks in reverse order  
  string content = file_content(InName);
  while(content) 
    content = readTick(content,--tick);

// store the ticks
  int size = (int)(ticks+maxticks)-(int)(tick+1);
  file_write(OutName,tick+1,size);
  free(ticks);

  printf("\nRead %d ticks",size/sizeof(TICK));