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ft_split.c
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ft_split.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_split.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: smizuoch <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/05/21 14:42:44 by smizuoch #+# #+# */
/* Updated: 2023/06/04 13:31:26 by smizuoch ### ########.fr */
/* */
/* ************************************************************************** */
#include"libft.h"
static char **ft_free(char **dest, size_t n)
{
n --;
while (n)
{
free (dest[n - 1]);
n --;
}
free(dest);
return (NULL);
}
static size_t ft_count_words(char const *s, char c)
{
int flag;
size_t count;
count = 0;
flag = 0;
while (*s)
{
if (*s != c && !flag)
{
count ++;
flag = 1;
}
else if (*s == c)
flag = 0;
s ++;
}
return (count);
}
static char *ft_search(char const *s, char c, size_t i)
{
size_t len;
size_t start;
char *dest;
len = 0;
start = i;
while (s[i] != c && s[i] != '\0')
{
len ++;
i ++;
}
dest = ft_substr(s, start, len);
if (dest == NULL)
return (NULL);
return (dest);
}
static size_t ft_wc(char const *s, char c, size_t i)
{
while (s[i] == c && s[i] != '\0')
i ++;
return (i);
}
char **ft_split(char const *s, char c)
{
size_t i;
size_t n;
char **dest;
i = 0;
n = 0;
if (s == NULL)
return (NULL);
dest = malloc (sizeof(char *) *(ft_count_words(s, c) + 1));
if (dest == NULL)
return (NULL);
while (s[i] != '\0')
{
i = ft_wc(s, c, i);
if (i < ft_strlen(s))
{
dest[n] = ft_search(s, c, i);
if (dest[n ++] == NULL)
return (ft_free(dest, n));
while (s[i] != c && s[i] != '\0')
i ++;
}
}
dest[n] = NULL;
return (dest);
}