get_next_line.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line.c                                    :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ohachim <marvin@42.fr>                     +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/01/21 21:49:00 by ohachim           #+#    #+#             */
/*   Updated: 2019/01/21 21:49:03 by ohachim          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"

int     ft_ret_line_read(int ret, char c, size_t len)
{
    if (ret == -1)
        return (-1);
    if (ret == 0 && c == '\0' && !len)
        return (0);
    return (1);
}

int    fill_fill(char **fill, char *buf, const int fd)
{
    int     ret;
    char    *temp;

    if (*fill == NULL)
        *fill = ft_strnew(1);
    while ((ret = read(fd, buf, BUFF_SIZE)))
    {
        buf[ret] = '\0';
        temp = *fill;
        *fill = ft_strjoin(*fill, buf);
        free(temp);
        if ((ft_strchr(buf, '\n')))
            break ;
    }
    return (ret);
}

int     get_next_line(const int fd, char **line)
{
    static char	*fill[4094];
    char		buf[BUFF_SIZE + 1];
    char        *temp;
    int         cn;
    int         ret;

    cn = 0;
    if (!line || BUFF_SIZE < 0 || read(fd, buf, 0) == -1 || fd < 0)
        return (-1); 
    ret = fill_fill(&fill[fd], buf, fd);
    *line = ft_strndup(fill[fd], '\n');
    while (fill[fd][cn] != '\n' && fill[fd][cn] != '\0')
        cn++;
    if (fill[fd][cn] == '\n')
    {
        cn++;
        temp = fill[fd];
        fill[fd] = ft_strdup(&fill[fd][cn]);
        free(temp);
        return (1);
    }
    return (ft_ret_line_read(ret, *fill[fd], ft_strlen(*line)));
}

// int     main(void)
// {
//     char    *line;
//     int     fd;

//     fd = open("text.txt", O_RDONLY);
//     while ((get_next_line(fd, &line)))
//     {
//         ft_putstr(line);
//         ft_putchar('\n');
//         ft_strdel(&line);  // Must free at every turn.
//     }
// }