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ft_split.c
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ft_split.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_split.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dalves-p <dalves-p@student.42sp.org.br> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/05/30 20:53:06 by dalves-p #+# #+# */
/* Updated: 2021/08/20 22:19:13 by dalves-p ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
/*
** LIBRARY: N/A
** DESCRIPTION:
** The ft_split() allocates (with malloc) 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.
** It returns the array of new strings resulting from the split or NULL if
** the allocation fails.
*/
static char **get_strs(char const *s, char c)
{
size_t i;
size_t j;
int index;
char **split;
i = 0;
j = 0;
index = -1;
split = malloc((ft_count_words(s, c) + 1) * sizeof(char *));
while (s[i] != '\0')
{
if (s[i] != c && index < 0)
index = i;
else if (s[i] == c && index >= 0)
{
split[j] = ft_substr(s, index, (i - index));
index = -1;
j++;
}
i++;
}
split[j] = ft_substr(s, index, (i - index));
j++;
split[j] = NULL;
return (split);
}
char **ft_split(char const *s, char c)
{
char **split;
char *scpy;
if (!s)
return (0);
scpy = ft_strtrim(s, &c);
if (!scpy)
return (0);
if (ft_count_words(scpy, c) == 0)
{
split = malloc(1 * sizeof(char *));
split[0] = NULL;
free(scpy);
return (split);
}
split = get_strs(scpy, c);
free(scpy);
return (split);
}