It is working (or is it?)

If '\n' is the last character in the buffer it won't work.
Other than that everything is working fine (as far as my current tests go...)

3 files changed, 86 insertions, 26 deletions

diff --git a/get_next_line.c b/get_next_line.c
index 2f5a954..7b43e06 100644
--- a/get_next_line.c
+++ b/get_next_line.c
@@ -6,48 +6,96 @@
 /*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/03/15 14:13:51 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/03/21 16:21:33 by dkaiser          ###   ########.fr       */
+/*   Updated: 2024/03/22 16:51:40 by dkaiser          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "get_next_line.h"
 
-int	get_next_line_len(char *buffer)
+char	*str_add_buffer(char *old_str, char *buf, int pos, int buf_len)
 {
-	int	len;
+	char	*result;
+	int		len;
+	int		i;
 
-	len = 0;
-	while (len < BUFFER_SIZE)
+	if (!old_str)
+		len = buf_len;
+	else
+		len = ft_strlen(old_str) + buf_len;
+	result = malloc(sizeof(char) * len);
+	if (!result)
+		return (NULL);
+	result[len] = '\0';
+	i = 0;
+	while (old_str && old_str[i])
 	{
-		if (!buffer[len])
-			return (len);
-		if (buffer[len] == '\n')
-			return (len + 1);
-		len++;
+		result[i] = old_str[i];
+		i++;
 	}
-	return (-1);
+	while (i < len)
+		result[i++] = buf[pos++];
+	return (result);
 }
 
-char	*get_next_line_rec(int fd, char *buffer, char *result)
+void	get_next_line_rec(int fd, char *buf, char **ptr_result, int pos)
 {
-	int	len;
-
-	if (!buffer[0])
-		read(fd, buffer, BUFFER_SIZE);
-	len = get_next_line_len(buffer);
-	if (!len)
-		return (result);
+	int		len;
+	int		i;
+	char	*old_res;
+	char	*result;
+	int		readlen;
 
-	return (result);
+	result = *ptr_result;
+	readlen = 0;
+	len = 0;
+	while (pos + len < BUFFER_SIZE)
+	{
+		if (buf[pos + len] == '\n')
+		{
+			len++;
+			break;
+		}
+		if (!buf[pos + len])
+			break ;
+		len++;
+	}
+	old_res = result;
+	result = str_add_buffer(old_res, buf, pos, len);
+	*ptr_result = result;
+	free(old_res);
+	if (!result)
+		return ;
+	i = 0;
+	while (i < len)
+		buf[pos + i++] = '\0';
+	if (pos + len == BUFFER_SIZE)
+	{
+		readlen = read(fd, buf, BUFFER_SIZE);
+		if (readlen > 0)
+			get_next_line_rec(fd, buf, &result, 0);
+	}
+	*ptr_result = result;
 }
 
 char	*get_next_line(int fd)
 {
-	static char	buffer[BUFFER_SIZE];
+	static char	buf[BUFFER_SIZE];
+	int			i;
 	char		*result;
+	int			readlen;
 
-	return (NULL);
+	i = 0;
+	readlen = 0;
 	result = NULL;
-	result = get_next_line_rec(fd, buffer, result);
+	while (i < BUFFER_SIZE && !buf[i])
+		i++;
+	if (i == BUFFER_SIZE)
+	{
+		readlen = read(fd, buf, BUFFER_SIZE);
+		if (readlen > 0)
+			return (get_next_line(fd));
+		return (NULL);
+	}
+	get_next_line_rec(fd, buf, &result, i);
 	return (result);
 }
diff --git a/get_next_line.h b/get_next_line.h
index 1e9a6f6..f0b0006 100644
--- a/get_next_line.h
+++ b/get_next_line.h
@@ -6,7 +6,7 @@
 /*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/03/15 14:14:07 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/03/21 15:22:54 by dkaiser          ###   ########.fr       */
+/*   Updated: 2024/03/22 12:04:28 by dkaiser          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,6 +19,8 @@
 #  define BUFFER_SIZE 42
 # endif
 
+int		ft_strlen(const char *str);
 char	*get_next_line(int fd);
-char * str_realloc(char *str, size_t size);
+char	*str_realloc(char *str, size_t size);
+
 #endif // GET_NEXT_LINE_H
diff --git a/get_next_line_utils.c b/get_next_line_utils.c
index d6fc37a..6127736 100644
--- a/get_next_line_utils.c
+++ b/get_next_line_utils.c
@@ -6,12 +6,22 @@
 /*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/03/15 14:14:59 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/03/21 15:22:40 by dkaiser          ###   ########.fr       */
+/*   Updated: 2024/03/22 12:05:00 by dkaiser          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "get_next_line.h"
 
+int	ft_strlen(const char *str)
+{
+	int	len;
+
+	len = 0;
+	while (str[len])
+		len++;
+	return (len);
+}
+
 char * str_realloc(char *str, size_t size)
 {
 	char *result;