/**
 * dnf.c
 *   Read a flag description from the command line, run the DNF algorithm,
 *   and then print the result.
 */

// +---------+-------------------------------------------------------
// | Headers |
// +---------+

#include "flag.h"
#include <stdio.h>
#include <string.h>

// +---------+-------------------------------------------------------
// | Helpers |
// +---------+

void
flag_fun (char *str, int len)
{
  color flag[len];

  // Build the flag
  for (int i = 0; i < len; i++) 
    {
      switch (str[i])
        {
          case 'R':
          case 'r':
            flag[i] = RED;
            break;

          case 'W':
          case 'w':
            flag[i] = WHITE;
            break;

          case 'B':
          case 'b':
            flag[i] = BLUE;
            break;

          default:
            fprintf (stderr, "Illegal letter: %c\n", str[i]);
            flag[i] = RED;
        } // switch
    } // for

  // Run the algorithm
  dnf (flag, len);

  // And print the result
  printflag (flag, len);

} // flag_fun

// +------+----------------------------------------------------------
// | Main |
// +------+

int 
main (int argc, char *argv[])
{
  flag_fun (argv[1], strlen (argv[1]));
  return 1;
} // main