ft_printf/main.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   main.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: baco <baco@student.42.fr>                  +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/04/13 06:58:46 by gbaconni          #+#    #+#             */
/*   Updated: 2022/04/17 09:59:04 by gbaconni         ###   lausanne.ch       */
/*                                                                            */
/* ************************************************************************** */

#include <stdio.h>  // printf
#include <stdarg.h> // va_list, va_start, va_end
#include <unistd.h> // write
#include <string.h> // strlen
#include <stdlib.h> // malloc, free
#include <ctype.h>  // isdigit
#include <assert.h> // assert
#include <fcntl.h>

#include "libftprintf/libftprintf.h"

int		isnumber(char *s);
int		isstring(char *s);

int	isnumber(char *s)
{
	int		i;

	i = 0;
	while (s[i])
	{
		if (!isdigit(s[i]))
			return (0);
		i++;
	}
	return (1);
}

int	isstring(char *s)
{
	int		i;

	i = 0;
	while (s[i])
	{
		if (!isprint(s[i]))
			return (0);
		i++;
	}
	return (1);
}

void	ft_begin(int *fd)
{
	pipe(fd);
	fd[2] = dup(STDOUT_FILENO);
	dup2(fd[1], STDOUT_FILENO);
}

void	ft_end(int *fd, char *str)
{
	close(fd[1]);
	read(fd[0], str, sizeof(str));
	close(fd[0]);
	dup2(fd[2], STDOUT_FILENO);
}

int	main(int argc, char *argv[])
{
	int		ft_ret;
	int		ret;
	char	out[256];
	char	ft_out[256];
	char	*format;
	int		d;
	char	c;
	char	*s;
	int		x;
	void	*ptr;
    int		fd[3];

	d = 0;
	c = '\0';
	s = "";
	x = 42;
	ptr = &x;
	(void)s;
	if (argc > 1)
	{
		format = argv[1];
        if (format[0] == '%')
        {
            if (format[1] == 'c')
			{
				c = argv[2][0];
				ret = printf(format, c);
				printf("%d = printf(\"%s\", '%c')\n%s\n", ret, format, c, out);
				ft_begin(fd);
				ft_ret = ft_printf(format, c);
				ft_end(fd, ft_out);
				printf("%d = ft_printf(\"%s\", '%c')\n%s\n", ret, format, c, ft_out);
				assert(ret == ft_ret);
				assert(strcmp(out, ft_out) == 0);
			}
            else if (format[1] == 's')
			{
				s = argv[2];
				ret = printf(format, s);
				printf(": %d = printf(\"%s\", \"%s\")\n", ret, format, s);
				ft_ret = ft_printf(format, s);
				printf(": %d = ft_printf(\"%s\", \"%s\")\n", ret, format, s);
				assert(ret == ft_ret);
			}
            else if (format[1] == 'p')
			{
				s = argv[2];
				if (ft_strlen(s) == 0)
				{
					s = NULL;
					ptr = NULL;
				}
				ret = printf(format, ptr);
				printf(": %d = printf(\"%s\", \"%s\")\n", ret, format, s);
				ft_ret = ft_printf(format, ptr);
				printf(": %d = ft_printf(\"%s\", \"%s\")\n", ret, format, s);
				assert(ret == ft_ret);
			}
            else if (format[1] == 'd' || format[1] == 'i' || format[1] == 'u')
			{
				d = atoi(argv[2]);
				ret = printf(format, d);
				printf(": %d = printf(\"%s\", %d)\n", ret, format, d);
				ft_ret = ft_printf(format, d);
				printf(": %d = ft_printf(\"%s\", %d)\n", ret, format, d);
				assert(ret == ft_ret);
			}
            else if (format[1] == 'x' || format[1] == 'X')
			{
				d = atoi(argv[2]);
				ret = printf(format, d);
				printf(": %d = printf(\"%s\", %d)\n", ret, format, d);
				ft_ret = ft_printf(format, d);
				printf(": %d = ft_printf(\"%s\", %d)\n", ret, format, d);
				assert(ret == ft_ret);
			}
        }
        else
		{
			s = argv[2];
			ret = printf(format, s);
			printf(": %d = printf(\"%s\", \"%s\")\n", ret, format, s);
			ft_ret = ft_printf(format, s);
			printf(": %d = ft_printf(\"%s\", \"%s\")\n", ret, format, s);
			assert(ret == ft_ret);
		}
	}
	return (0);
}