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javrodri42javrodri42
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‎get_next_line.c

+101
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/* ************************************************************************** */
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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: javrodri <javrodri@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 10:14:38 by javrodri #+# #+# */
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/* Updated: 2019/11/25 14:58:40 by javrodri ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "get_next_line.h"
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static char *ft_strnew(void)
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{
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char *ret;
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if (!(ret = (char *)malloc(sizeof(char))))
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return (0);
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ret[0] = '\0';
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return (ret);
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}
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static ssize_t pos_nl(char *s)
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{
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ssize_t i;
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i = 0;
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while (s[i] != '\0')
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{
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if (s[i] == '\n')
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return (i);
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i++;
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}
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return (-1);
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}
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static int free_cache(char **cache, int ret)
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{
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if (*cache)
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{
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free(*cache);
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*cache = 0;
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}
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return (ret);
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}
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static int extract(char **line, char **cache, int idx)
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{
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char *tmp;
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int ret;
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if (idx >= 0)
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{
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if (!(*line = ft_substr(*cache, 0, idx)))
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return (free_cache(cache, -1));
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if (!(tmp = ft_substr(*cache, idx + 1, ft_strlen(*cache) - idx - 1)))
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return (free_cache(cache, -1));
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ret = 1;
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}
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else
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{
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if (!(*line = ft_substr(*cache, 0, ft_strlen(*cache))))
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return (free_cache(cache, -1));
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tmp = 0;
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ret = 0;
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}
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free_cache(cache, 0);
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*cache = tmp;
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return (ret);
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}
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int get_next_line(int fd, char **line)
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{
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ssize_t ret;
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char buff[BUFFER_SIZE + 1];
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static char *cache;
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char *tmp;
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if (BUFFER_SIZE == 0)
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return (-1);
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if (fd < 0 || !line)
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return (free_cache(&cache, -1));
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while ((ret = read(fd, buff, BUFFER_SIZE)) > 0)
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{
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buff[ret] = '\0';
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if (!(tmp = ft_strjoin(cache, buff, ret)))
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return (free_cache(&cache, -1));
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free_cache(&cache, 0);
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cache = tmp;
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if (pos_nl(cache) != -1)
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break ;
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}
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if (ret < 0)
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return (free_cache(&cache, -1));
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if (ret == 0 && (!cache || *cache == '\0')
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&& (*line = ft_strnew()))
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return (free_cache(&cache, 0));
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return (extract(line, &cache, pos_nl(cache)));
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}

‎get_next_line.h

+24
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,24 @@
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: javrodri <javrodri@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 11:52:57 by javrodri #+# #+# */
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/* Updated: 2019/11/25 13:37:17 by javrodri ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef GET_NEXT_LINE_H
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# define GET_NEXT_LINE_H
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# include <unistd.h>
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# include <stdlib.h>
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int get_next_line(int fd, char **line);
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ssize_t ft_strlen(const char *s);
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char *ft_strjoin(char *s1, char *s2, ssize_t r_size);
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char *ft_substr(char const *s, unsigned int start, ssize_t len);
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#endif

‎get_next_line_bonus.c

+101
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line_bonus.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: javrodri <javrodri@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 10:14:38 by javrodri #+# #+# */
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/* Updated: 2019/11/25 14:33:37 by javrodri ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "get_next_line_bonus.h"
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static char *ft_strnew(void)
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{
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char *ret;
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if (!(ret = (char *)malloc(sizeof(char))))
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return (0);
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ret[0] = '\0';
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return (ret);
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}
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static ssize_t pos_nl(char *s)
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{
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ssize_t i;
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i = 0;
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while (s[i] != '\0')
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{
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if (s[i] == '\n')
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return (i);
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i++;
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}
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return (-1);
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}
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static int free_cache(char **cache, int ret)
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{
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if (*cache)
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{
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free(*cache);
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*cache = 0;
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}
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return (ret);
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}
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static int extract(char **line, char **cache, int idx)
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{
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char *tmp;
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int ret;
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if (idx >= 0)
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{
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if (!(*line = ft_substr(*cache, 0, idx)))
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return (free_cache(cache, -1));
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if (!(tmp = ft_substr(*cache, idx + 1, ft_strlen(*cache) - idx - 1)))
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return (free_cache(cache, -1));
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ret = 1;
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}
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else
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{
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if (!(*line = ft_substr(*cache, 0, ft_strlen(*cache))))
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return (free_cache(cache, -1));
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tmp = 0;
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ret = 0;
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}
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free_cache(cache, 0);
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*cache = tmp;
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return (ret);
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}
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int get_next_line(int fd, char **line)
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{
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ssize_t r_size;
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char buff[BUFFER_SIZE + 1];
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static char *cache[4096];
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char *tmp;
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if (BUFFER_SIZE == 0)
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return (-1);
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if (fd < 0 || !line)
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return (free_cache(&cache[fd], -1));
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while ((r_size = read(fd, buff, BUFFER_SIZE)) > 0)
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{
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buff[r_size] = '\0';
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if (!(tmp = ft_strjoin(cache[fd], buff, r_size)))
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return (free_cache(&cache[fd], -1));
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free_cache(&cache[fd], 0);
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cache[fd] = tmp;
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if (pos_nl(cache[fd]) != -1)
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break ;
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}
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if (r_size < 0)
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return (free_cache(&cache[fd], -1));
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if (r_size == 0 && (!cache[fd] || *cache[fd] == '\0')
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&& (*line = ft_strnew()))
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return (free_cache(&cache[fd], 0));
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return (extract(line, &cache[fd], pos_nl(cache[fd])));
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}

‎get_next_line_bonus.h

+24
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@@ -0,0 +1,24 @@
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line_bonus.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: javrodri <javrodri@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 11:52:57 by javrodri #+# #+# */
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/* Updated: 2019/11/25 13:56:51 by javrodri ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef GET_NEXT_LINE_BONUS_H
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# define GET_NEXT_LINE_BONUS_H
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# include <unistd.h>
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# include <stdlib.h>
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int get_next_line(int fd, char **line);
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ssize_t ft_strlen(const char *s);
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char *ft_strjoin(char *s1, char *s2, ssize_t r_size);
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char *ft_substr(char const *s, unsigned int start, ssize_t len);
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#endif

‎get_next_line_utils.c

+67
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line_utils.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: javrodri <javrodri@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 11:46:19 by javrodri #+# #+# */
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/* Updated: 2019/11/25 13:36:47 by javrodri ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "get_next_line.h"
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ssize_t ft_strlen(const char *s)
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{
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ssize_t len;
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19+
if (!s)
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return (0);
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len = 0;
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while (s[len] != '\0')
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len++;
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return (len);
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}
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char *ft_substr(const char *s, unsigned int start, ssize_t len)
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{
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char *ptr;
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char *ret;
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char *cpy_ret;
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if (!s || !(ret = (char*)malloc(sizeof(char) * (len + 1))))
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return (0);
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if (start >= ft_strlen(s))
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ret[0] = '\0';
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else
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{
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ptr = (char*)s + start;
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cpy_ret = ret;
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while (*ptr != '\0' && len-- > 0)
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*cpy_ret++ = *ptr++;
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*cpy_ret = '\0';
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}
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return (ret);
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}
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char *ft_strjoin(char *s1, char *s2, ssize_t r_size)
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{
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int len;
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char *res;
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ssize_t i;
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len = ft_strlen(s1) + r_size;
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if (!(res = (char*)malloc(sizeof(char) * (len + 1))))
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return (0);
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i = 0;
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while (s1 && s1[i] != '\0')
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{
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res[i] = s1[i];
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i++;
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}
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while (s2 && *s2 != '\0')
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res[i++] = *s2++;
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res[i] = '\0';
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return (res);
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}

‎get_next_line_utils_bonus.c

+67
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@@ -0,0 +1,67 @@
1+
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line_utils_bonus.c :+: :+: :+: */
5+
/* +:+ +:+ +:+ */
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/* By: javrodri <javrodri@student.42.fr> +#+ +:+ +#+ */
7+
/* +#+#+#+#+#+ +#+ */
8+
/* Created: 2019/11/25 11:46:19 by javrodri #+# #+# */
9+
/* Updated: 2019/11/25 13:57:14 by javrodri ### ########.fr */
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/* */
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/* ************************************************************************** */
12+
13+
#include "get_next_line_bonus.h"
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ssize_t ft_strlen(const char *s)
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{
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ssize_t len;
18+
19+
if (!s)
20+
return (0);
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len = 0;
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while (s[len] != '\0')
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len++;
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return (len);
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}
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27+
char *ft_substr(const char *s, unsigned int start, ssize_t len)
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{
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char *ptr;
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char *ret;
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char *cpy_ret;
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if (!s || !(ret = (char*)malloc(sizeof(char) * (len + 1))))
34+
return (0);
35+
if (start >= ft_strlen(s))
36+
ret[0] = '\0';
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else
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{
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ptr = (char*)s + start;
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cpy_ret = ret;
41+
while (*ptr != '\0' && len-- > 0)
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*cpy_ret++ = *ptr++;
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*cpy_ret = '\0';
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}
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return (ret);
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}
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48+
char *ft_strjoin(char *s1, char *s2, ssize_t r_size)
49+
{
50+
int len;
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char *res;
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ssize_t i;
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len = ft_strlen(s1) + r_size;
55+
if (!(res = (char*)malloc(sizeof(char) * (len + 1))))
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return (0);
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i = 0;
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while (s1 && s1[i] != '\0')
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{
60+
res[i] = s1[i];
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i++;
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}
63+
while (s2 && *s2 != '\0')
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res[i++] = *s2++;
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res[i] = '\0';
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return (res);
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}

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