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ft_split.c
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ft_split.c
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/* ************************************************************************** */
/* */
/* :::::::: */
/* ft_split.c :+: :+: */
/* +:+ */
/* By: jaberkro <[email protected]> +#+ */
/* +#+ */
/* Created: 2021/10/22 21:54:14 by jaberkro #+# #+# */
/* Updated: 2021/11/29 18:15:28 by jaberkro ######## odam.nl */
/* */
/* ************************************************************************** */
#include "libft.h"
static char **free_all(char **out, int wcounter)
{
int counter;
counter = 0;
while (counter < wcounter)
{
free(out[counter]);
counter++;
}
free(out);
return (NULL);
}
static char **out_filler(char const *s, char c, char **out)
{
int wcounter;
int last;
int wordlen;
last = 0;
wcounter = 0;
while (*s != '\0')
{
if (*s != c && *s)
{
wordlen = 0;
while (s[wordlen] != c && s[wordlen] != '\0')
wordlen++;
out[wcounter] = malloc(wordlen + 1);
if (out[wcounter] == NULL)
return (free_all(out, wcounter));
ft_strlcpy(out[wcounter], s, wordlen + 1);
wcounter++;
s += wordlen;
if (!*s)
break ;
}
s++;
}
return (out);
}
static int count_words(char const *s, char c)
{
int words;
int last;
words = 0;
last = 0;
while (*s)
{
if (*s != c && last == 0)
{
last = 1;
words++;
}
if (*s == c)
last = 0;
s++;
}
return (words);
}
char **ft_split(char const *s, char c)
{
int words;
char **out;
if (!s)
return (NULL);
words = count_words(s, c);
out = ft_calloc(words + 1, sizeof(char *));
if (out == NULL)
return (NULL);
return (out_filler(s, c, out));
}
/* Allocates (with malloc(3)) and returns an array
of strings obtained by splitting ’s’ using the
character ’c’ as a delimiter. The array must be
ended by a NULL pointer.
*/