/**
 * split.c
 *   Split strings into component parts.
 */

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

#include <string.h>
#include "split.h"

#ifdef CTEST
#include <stdlib.h>
#include <stdio.h>
#endif // CTEST


// +-----------+------------------------------------------------------
// | Functions |
// +-----------+

void 
split (char *str, char *sep, char *parts[], int n)
{
  int i;
  char *tmp;
  int seplen = strlen (sep);

  for (i = 0; i < n; i++)
    {
      tmp = strstr (str, sep);
      if (tmp == NULL)
        {
          parts[i] = strdup (str);
          str += strlen (str);
        }
      else
        {
          int size = strlen (str) - strlen (tmp);
          parts[i] = strndup (str, size);
          str = tmp + seplen;
        }
     } // for
} // split


// +-------------------+----------------------------------------------
// | Command-Line Test |
// +-------------------+

#ifdef CTEST
void
ctest (char *str, char *sep, int n)
{
  char *strings[n];
  int i;

  split (str, sep, strings, n);

  printf ("split (\"%s\", \"%s\", strings, %d)\n", str, sep, n);

  for (i = 0; i < n; i++)
    printf ("  strings[%d] = \"%s\"\n", i, strings[i]);
} // ctest

int
main (int argc, char *argv[])
{
  ctest (argv[1], argv[2], atoi (argv[3]));
  return 0; 
} // main
#endif // CTEST