// roster_03_main.cpp
// CS302
// James S. Plank
// EECS Department, University of Tennessee
// August, 2009
//
#include <fstream>
#include "roster_03.h"

main(int argc, char **argv)
{
  Roster *r;
  ifstream fin;
  string name;
  int columns, starting_number;

  if (argc != 4) {
    cerr << "usage: roster_main filename starting_number columns\n";
    exit(1);
  }

  if (sscanf(argv[2], "%d", &starting_number) != 1 || starting_number <= 0) {
    cerr << "usage: roster_main filename starting_number columns -- bad starting_number\n";
    exit(1);
  }

  if (sscanf(argv[3], "%d", &columns) != 1 || columns <= 0) {
    cerr << "usage: roster_main filename starting_number columns -- bad columns specification\n";
    exit(1);
  }

  r = new Roster(starting_number);

  fin.open(argv[1]);
  if (fin.fail()) { perror(argv[1]); exit(1); }
  
  do {
    getline(fin, name);
    if (!fin.fail())  r->Add_name(name);
  } while (!fin.fail());

  r->Print(columns);
}