r                  21 separate.c       int c, r, i, max;
r                 113 separate.c     	    if (isxdigit(r = *text)) {
r                 116 separate.c     	      fprintf(stderr, "Invalid digit %c.(separate)\n", r);
r                 119 separate.c     	    if (isxdigit(r = *text)) {
r                 122 separate.c     	      fprintf(stderr, "Invalid digit %c.(separate)\n", r);
r                 125 separate.c     	    sscanf(&hex[0], "%x", &r);
r                 126 separate.c     	    sprintf(k++, "%c", r);