/* xor.c - Don Yang (uguu.org)

   10/27/01
                                                                           */
/*@ -usedef @*/

#include<stdio.h>
#include<stdlib.h>

int main(int argc, char **argv)
{
   int slash, space, quote, control, extended, count, cr, lf, tab;
   int min, max, xor, p, q;

   if( argc < 2 )
      return fprintf(stderr, "%s <xor>\n", *argv);

   fprintf(stderr, "xor = %d\n", xor = atoi(argv[1]));
   space = control = quote = slash = extended = cr = lf = tab = 0;
   for(count = 0; (p = getchar()) != EOF; count++)
   {
      q = p ^ xor;
      if( count == 0 )
         min = max = q;
      if( q < min )     min = q;
      if( q > max )     max = q;
      if( q == (int)'\\' )    slash++;
      if( q == (int)'\"' )    quote++;
      if( q == (int)'\n' )    cr++;
      if( q == (int)'\r' )    lf++;
      if( q == (int)'\t' )    tab++;
      if( q == (int)' ' )     space++;
      if( q <  (int)' ' )     control++;
      if( q >= 127 )          extended++;
      (void)putchar(q);
   }
   fprintf(stderr,
      "count = %d, space = %d, cr = %d, lf = %d, tab = %d\n"
      "control = %d, extended = %d, quote = %d, slash = %d\n",
      count, space, cr, lf, tab, control, extended, quote, slash);

   return 0;
}