110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/* ************************************************************************** */
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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: grobledo <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/05/05 20:41:22 by grobledo #+# #+# */
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/* Updated: 2023/05/05 20:41:25 by grobledo ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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char *ft_join( char *buffer, char *buff_read)
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{
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char *temp;
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temp = ft_strjoing(buffer, buff_read);
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free (buffer);
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return (temp);
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}
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char *ft_nextline(char *buffer)
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{
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int i;
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int j;
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char *nextline;
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i = 0;
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while (buffer[i] && buffer[i] != '\n')
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i++;
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if (buffer[i] == '\n')
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i++;
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if (!buffer[i])
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{
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free (buffer);
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return (NULL);
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}
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j = 0;
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nextline = ft_calloc(ft_strleng(buffer) - i + 1, sizeof(char));
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while (buffer[i])
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{
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nextline[j++] = buffer[i++];
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}
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free (buffer);
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return (nextline);
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}
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char *ft_line(char *buffer)
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{
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char *line;
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int i;
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i = 0;
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if (!buffer)
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return (NULL);
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while (buffer[i] && buffer[i] != '\n')
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i++;
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line = ft_calloc(i + 2, sizeof(char));
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i = 0;
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while (buffer[i] && buffer[i] != '\n')
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{
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line[i] = buffer[i];
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i++;
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}
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if (buffer[i] && buffer[i] == '\n')
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line[i] = '\n';
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return (line);
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}
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char *ft_readfile(int fd, char *buffer)
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{
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int byte_read;
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char *buff_read;
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buff_read = ft_calloc(BUFFER_SIZE + 1, sizeof(char));
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byte_read = 1;
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while (byte_read > 0)
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{
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byte_read = read(fd, buff_read, BUFFER_SIZE);
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if (byte_read == 0)
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break ;
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if (byte_read == -1)
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{
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free(buff_read);
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return (NULL);
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}
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buff_read[byte_read] = 0;
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buffer = ft_join(buffer, buff_read);
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if (ft_strrchr(buff_read, '\n'))
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break ;
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}
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free (buff_read);
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return (buffer);
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}
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char *get_next_line(int fd)
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{
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char *line;
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static char *buffer = NULL;
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if (fd < 0 || BUFFER_SIZE <= 0 || read(fd, 0, 0) < 0)
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return (NULL);
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buffer = ft_readfile(fd, buffer);
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if (!buffer)
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return (NULL);
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line = ft_line(buffer);
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buffer = ft_nextline(buffer);
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return (line);
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}
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