ft_nm/src/ft_printf.c

#include "ft_nm.h"

char ft_get_hex_digit(char c) {
	if (c > 9) {
		return c + 'W';
	} else {
		return c + '0';
	}
}

void ft_print_hex_digit(char c) {
	if (c > 9) {
		ft_putchar(c + 'W');
	} else {
		ft_putchar(c + '0');
	}
}

void ft_put_address_32(uint32_t addr) {
	for (char i = 7; i >= 0; i--) {
		ft_print_hex_digit((addr >> i * 4) & 0xF);
	}
}

void ft_put_address_64(uint64_t addr) {
	for (char i = 15; i >= 0; i--) {
		ft_print_hex_digit((addr >> i * 4) & 0xF);
	}
}

void ft_printf(const char *format, ...) {
	va_list ap;
	int argc = ft_strlen(format);

	va_start(ap, format);
	for (int i = 0; i < argc; i++) {
		switch (format[i]) {
			case 's':
				ft_putstr(va_arg(ap, char *));
				break;
			case 'd':
				ft_putnbr(va_arg(ap, int));
				break;
			case 'x':
				ft_put_address_32(va_arg(ap, uint32_t));
				break;
			case 'X':
				ft_put_address_64(va_arg(ap, uint64_t));
				break;
			case ' ':
				ft_putchar(' ');
				break;
			case 'p':
				ft_putstr("        ");
				break;
			case 'P':
				ft_putstr("                ");
				break;
			default:
				ft_putchar(format[i]);
				break;
		}
	}
	va_end(ap);
}