1  /* ************************************************************************** */
 2  /*                                                                            */
 3  /*                                                        :::      ::::::::   */
 4  /*   read_file.c                                        :+:      :+:    :+:   */
 5  /*                                                    +:+ +:+         +:+     */
 6  /*   By: ll-hotel <ll-hotel@student.42lyon.fr>      +#+  +:+       +#+        */
 7  /*                                                +#+#+#+#+#+   +#+           */
 8  /*   Created: 2024/07/26 15:38:31 by ll-hotel          #+#    #+#             */
 9  /*   Updated: 2024/10/21 17:41:26 by ll-hotel         ###   ########.fr       */
10  /*                                                                            */
11  /* ************************************************************************** */
12  
13  #include "ft_basics.h"
14  #include "ft_dprintf.h"
15  #include "ft_vec.h"
16  #include "get_next_line.h"
17  #include "parsing.h"
18  #include <errno.h>
19  #include <stdlib.h>
20  #include <string.h>
21  #include <unistd.h>
22  #include <fcntl.h>
23  
24  static int	append_line(t_vec *file, char *line);
25  
26  int	read_file(char const *file_name, t_line **lines)
27  {
28  	int		fd;
29  	t_vec	file;
30  	char	*line;
31  
32  	fd = open(file_name, O_RDONLY);
33  	if (fd == -1)
34  	{
35  		ft_dprintf(2, "Error\nCould not open file %s: %s\n", \
36  				file_name, strerror(errno));
37  		return (0);
38  	}
39  	vec_new(&file, sizeof(**lines));
40  	line = get_next_line(fd);
41  	while (line)
42  	{
43  		if (!append_line(&file, line))
44  			return (0);
45  		line = get_next_line(fd);
46  	}
47  	if (!vec_addback(&file, &(t_line){0}))
48  		return (vec_clear(&file, free_line), 0);
49  	*lines = file.array;
50  	return (1);
51  }
52  
53  static int	append_line(t_vec *file, char *str)
54  {
55  	t_line	line;
56  	char	*newline;
57  
58  	newline = ft_strrchr(str, '\n');
59  	if (newline)
60  		*newline = 0;
61  	line_from_str(&line, str);
62  	if (vec_addback(file, &line) == NULL)
63  	{
64  		free(str);
65  		vec_clear(file, free_line);
66  		return (0);
67  	}
68  	return (1);
69  }