static void
hex(const char *s)
{
unsigned long long i = 0;
switch (s[0]) {
case 'b':
case 'B':
i = read_bin(s + 1);
break;
case 'x':
case 'X':
i = read_hex(s + 1);
break;
case '0':
if (s[1] == '\0')
i = read_dec(s);
else if (s[1] == 'x' || s[1] == 'X')
i = read_hex(s + 2);
else
i = read_oct(s + 1);
break;
default:
if (isdigit(*s))
i = read_dec(s);
else
usage();
break;
}
print_bin(i);
print_chr(i);
print_dec(i);
print_hex(i);
print_oct(i);
}
int print_number(int fd, va_list ap, char c)
{
int written = 0;
switch (c) {
case 's':
written = print_str(fd, va_arg(ap, char *));
break;
case 'd':
written = print_dec(fd, va_arg(ap, uint64_t));
break;
case 'o':
written = print_oct(fd, va_arg(ap, uint64_t));
break;
case 'x':
written = print_hex(fd, va_arg(ap, uint64_t));
break;
case 'c':
written = print_chr(fd, va_arg(ap, uint64_t));
break;
default:
fputc(fd, c);
written++;
}
return written;
}
static int builtin_echo_ext(const char *msg)
{
int backed = 0;
for (; *msg; ++msg)
if (*msg == '\\' && !backed && (backed = 1))
continue;
else if (backed && *msg == 'a' && !(backed = 0))
putchar('\a');
else if (backed && *msg == 'b' && !(backed = 0))
putchar('\b');
else if (backed && *msg == 'c')
return 0;
else if (backed && *msg == 'e' && !(backed = 0))
putchar(0x1b);
else if (backed && *msg == 'f' && !(backed = 0))
putchar('\f');
else if (backed && *msg == 'n' && !(backed = 0))
putchar('\n');
else if (backed && *msg == 'r' && !(backed = 0))
putchar('\r');
else if (backed && *msg == 't' && !(backed = 0))
putchar('\t');
else if (backed && *msg == '\\' && !(backed = 0))
putchar('\\');
else if (backed && *msg == 'v' && !(backed = 0))
putchar('\v');
else if (backed && fisdigit(*msg) && !(backed = 0))
print_oct(&msg);
else if (backed && *msg == 'x' && !(backed = 0) && (++msg))
print_hex(&msg);
else if (backed && !(backed = 0))
printf("\\%c", *msg);
else
putchar(*msg);
return 1;
}
