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

int main()
{ char line[100];

  /* the dangerous way - not available on rabbit any more
  printf("? ");
  char * s = gets(line);
  if (s == NULL)
    printf("\nend of file or user typed ctrl-D\n");
  else if (line[0] == '\0')
    printf("empty line\n");
  else if (line[strlen(line) - 1] == '\n')
    printf("this will never happen\n");
  else
    printf("you typed \"%s\"\n", line); */

  // the safe way
  printf("? ");
  char * s = fgets(line, 100, stdin);
  if (s == NULL)
    printf("\nend of file or user typed ctrl-D\n");
  else if (line[0] == '\0')
    printf("this will never happen\n");
  else if (line[0] == '\n')
    printf("empty line\n");
  else if (line[strlen(line) - 1] != '\n')
    printf("the line was too long, another fgets will get more of it\n");
  else
    printf("you typed \"%s\"\n", line); }