113 lines
2.4 KiB
C
Executable File
113 lines
2.4 KiB
C
Executable File
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: aortigos <aortigos@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/12/23 12:07:52 by aortigos #+# #+# */
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/* Updated: 2025/02/15 09:56:00 by aortigos ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "get_next_line.h"
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char *ft_free(char *buffer, char *buf)
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{
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char *temp;
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temp = ft_strjoin(buffer, buf);
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free(buffer);
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return (temp);
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}
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char *ft_get_line(char *save)
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{
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int i;
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char *new;
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i = 0;
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if (!save[i])
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return (NULL);
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while (save[i] && save[i] != '\n')
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i++;
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new = ft_calloc(sizeof(char), i + 2);
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if (new == NULL)
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return (NULL);
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i = 0;
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while (save[i] && save[i] != '\n')
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{
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new[i] = save[i];
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i++;
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}
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if (save[i] && save[i] == '\n')
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new[i++] = '\n';
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return (new);
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}
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char *ft_next(char *save)
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{
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int i;
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int j;
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char *line;
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i = 0;
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while (save[i] && save[i] != '\n')
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i++;
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if (!save[i])
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{
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free(save);
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return (NULL);
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}
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line = ft_calloc((ft_strlen(save) - i + 1), sizeof(char));
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i++;
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j = 0;
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while (save[i])
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line[j++] = save[i++];
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free(save);
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return (line);
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}
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char *read_file(int fd, char *save)
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{
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int bytes_read;
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char *buffer;
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if (!save)
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save = ft_calloc(1, 1);
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buffer = ft_calloc(BUFFER_SIZE + 1, sizeof(char));
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if (buffer == NULL)
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return (NULL);
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bytes_read = 1;
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while (bytes_read > 0)
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{
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bytes_read = read(fd, buffer, BUFFER_SIZE);
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if (bytes_read == -1)
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{
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free(buffer);
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return (NULL);
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}
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buffer[bytes_read] = 0;
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save = ft_free(save, buffer);
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if (ft_strchr(buffer, '\n'))
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break ;
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}
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free(buffer);
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return (save);
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}
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char *get_next_line(int fd)
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{
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static char *save;
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char *line;
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if (fd < 0 || BUFFER_SIZE <= 0 || read(fd, 0, 0) < 0)
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return (0);
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save = read_file(fd, save);
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if (save == NULL)
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return (NULL);
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line = ft_get_line(save);
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save = ft_next(save);
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return (line);
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}
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