lib/ft_printf/ft_printf.c

63 lines
1.6 KiB
C

static u32
ft_is_format(const char c) {
return (c == 'c' || c == 's' || c == 'p' || c == 'i' || c == 'd'
|| c == 'u' || c == 'x' || c == 'X' || c == '%' || c == 'b');
}
static u32
ft_post_character(u32 fd, char format, va_list args) {
if (format == 'c')
return ft_putchar_fd(va_arg(args, int), fd);
else if (format == 's')
return ft_putstr_fd(va_arg(args, char *), fd);
else if (format == 'd' || format == 'i' || format == 'u')
return ft_putnbr_fd(va_arg(args, i64), fd);
else if (format == 'x')
return ft_putnbrhex_fd(va_arg(args, u32), fd);
else if (format == 'X')
return ft_putnbrhex_upper_fd(va_arg(args, u32), fd);
else if (format == '%')
return ft_putchar_fd('%', fd);
else if (format == 'p')
return ft_putvd_fd(va_arg(args, void *), fd);
else if (format == 'b')
return ft_putstr_fd(va_arg(args, i32) ? "true" : "false", fd);
return 0;
}
u32
ft_vdprintf(u32 fd, const char *str, va_list args) {
u32 count = 0;
if (str == NULL)
return (-1);
for (u32 i = 0; str[i]; i++) {
if (str[i] == '%' && ft_is_format(str[i + 1]))
count += ft_post_character(fd, str[(i++) + 1], args);
else {
ft_putchar_fd(str[i], fd);
count++;
}
}
return (count);
}
u32
ft_printf_fd(u32 fd, const char *str, ...) {
va_list args;
va_start(args, str);
u32 count = ft_vdprintf(fd, str, args);
va_end(args);
return count;
}
u32
ft_printf(const char *str, ...) {
va_list args;
va_start(args, str);
u32 count = ft_vdprintf(1, str, args);
va_end(args);
return count;
}