My_printf/ft_printf.c at main · yahyaelallam725-ctrl/My_printf · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_printf.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yelallam <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/21 09:50:39 by yelallam          #+#    #+#             */
/*   Updated: 2025/12/01 18:59:14 by yelallam         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
#include "ft_printf.h"

static int	handle_format(const char *str, int i, va_list ap)
{
	if (str[i + 1] == 'c')
		return (ft_putchar_fd((char)va_arg(ap, int), 1));
	else if (str[i + 1] && str[i + 1] == 's')
		return (ft_putstr_fd(va_arg(ap, char *), 1));
	else if (str[i + 1] == 'd' || str[i + 1] == 'i')
		return (ft_putnbr_fd(va_arg(ap, int), 1));
	else if (str[i + 1] == '%')
		return (ft_putchar_fd('%', 1));
	else if (str[i + 1] == 'u')
		return (ft_put_un_nbr_fd((unsigned int)va_arg(ap, unsigned int), 1));
	else if (str[i + 1] == 'p')
		return (ft_putptr((uintptr_t)va_arg(ap, void *)));
	else if (str[i + 1] == 'x')
		return (ft_puthexa_low((unsigned int)va_arg(ap, unsigned int)));
	else if (str[i + 1] == 'X')
		return (ft_puthexa_upp((unsigned int)va_arg(ap, unsigned int)));
	else
		return (-1);
}

int	ft_printf(const char *str, ...)
{
	va_list	ap;

	int i, (count), (tmp);
	va_start(ap, str);
	i = 0;
	count = 0;
	if (str == NULL)
		return (-1);
	if (str[i] == '\0')
		return (0);
	while (str[i])
	{
		if (str[i] == '%')
		{
			tmp = handle_format(str, i, ap);
			if (tmp == -1)
				return (-1);
			count += tmp;
			i = i + 2;
		}
		else
			count += ft_putchar_fd(str[i++], 1);
	}
	va_end(ap);
	return (count);
}