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ft_split.c
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ft_split.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_split.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ael-khni <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/04 14:13:19 by ael-khni #+# #+# */
/* Updated: 2021/11/10 08:16:15 by ael-khni ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static char **malloc_error(char **tab)
{
unsigned int i;
i = 0;
while (tab[i])
free(tab[i++]);
free(tab);
return (NULL);
}
static int word_count(const char *str, char c)
{
int i;
int count;
i = 0;
count = 0;
while (str[i])
{
if (str[i] == c)
i++;
else
{
count++;
while (str[i] != c && str[i])
i++;
}
}
return (count);
}
static char *ft_getword(const char *s1, int *index, char c)
{
char *copy;
size_t word_len;
int i;
word_len = 0;
while (s1[*index] == c)
(*index)++;
i = *index;
while (s1[i] && s1[i] != c)
{
word_len++;
i++;
}
copy = malloc(sizeof(char) * (word_len + 1));
if (!copy)
return (NULL);
i = 0;
while (s1[*index] && s1[*index] != c)
copy[i++] = s1[(*index)++];
copy[i] = '\0';
return (copy);
}
char **ft_split(char const *s, char c)
{
char **arr;
int index;
int wc;
int i;
index = 0;
i = 0;
if (!s)
return (NULL);
wc = word_count(s, c);
arr = malloc(sizeof(char *) * (wc + 1));
if (!arr)
return (NULL);
while (i < wc)
{
arr[i] = ft_getword(s, &index, c);
if (!arr[i])
return (malloc_error(arr));
i++;
}
arr[i] = 0;
return (arr);
}