ft_ssl_md5/libs/libft/srcs/ft_printf.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_printf.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: bchanot <bchanot@students.42.fr>           +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2016/02/11 00:22:06 by bchanot           #+#    #+#             */
/*   Updated: 2018/10/14 03:40:26 by bchanot          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libftprintf.h"
#include <unistd.h>

static int	(*g_func[])(va_list, t_inf) = {
	pf_percent, pf_s, pf_s_up, pf_p,
	pf_di, pf_d_up, pf_di, pf_o,
	pf_o_up, pf_u, pf_u_up, pf_x,
	pf_x_up, pf_c, pf_c_up, pf_b};

int			pf_print_part(const char *format, char *s, int fd)
{
	int	len;

	len = 0;
	while (format + len != s)
		len++;
	write(fd, format, len);
	return (len);
}

static int	ft_format(char **s, va_list ap, t_inf inf)
{
	int		len;

	len = 0;
	if (inf.type == -1)
		return (-2);
	else if (inf.type >= 0)
		len = g_func[inf.type](ap, inf);
	if (len < 0)
		return (-1);
	*s -= 1;
	return (len);
}

static int	pf_printf(const char **format, va_list ap, char **s, int tmp[2])
{
	int		chk;
	t_inf	inf;
	int		len;

	len = tmp[0];
	len += pf_print_part(*format, *s, tmp[1]);
	*s += 1;
	inf = pf_take_inf(s, ap, tmp[1]);
	if ((chk = ft_format(s, ap, inf)) < 0)
	{
		if (chk == -1)
			return (-1);
		if (pf_wrong_conv(s, format, inf, &len))
			return (len);
	}
	else
	{
		*format = *s + 1;
		len += chk;
	}
	return (len);
}

int			ft_printf(int fd, const char *format, ...)
{
	va_list		ap;
	int			len[2];
	char		*s;
	int			col;

	len[0] = 0;
	len[1] = fd;
	col = 0;
	s = (char *)format;
	va_start(ap, format);
	while (*s)
	{
		if (*s == '{')
			col = pf_take_color(&s, &format, &len[0], len[1]);
		if (*s == '%')
			if ((len[0] = pf_printf(&format, ap, &s, len) == -1))
				return (-1);
		s++;
	}
	va_end(ap);
	len[0] += pf_putstr(format, fd);
	if (col == 1)
		ft_putstr_fd(EOC, fd);
	return (len[0]);
}