libft/ft_strsplit.c
2018-04-07 18:57:23 +02:00

74 lines
1.9 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strsplit.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2018/04/07 17:54:29 by tmaze #+# #+# */
/* Updated: 2018/04/07 18:51:30 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int count_words(char const *s, char c)
{
int i;
int nb_words;
int in_word;
in_word = 0;
nb_words = 0;
i = -1;
while (s[++i])
if (!in_word && s[i] != c)
{
in_word = 1;
nb_words++;
}
else if (in_word && s[i] == c)
in_word = 0;
return (nb_words);
}
static char **get_table(char const *s, char c, char **tab)
{
int i;
int nb_words;
int in_word;
size_t start;
nb_words = 0;
in_word = 0;
i = -1;
while (s[++i])
if (!in_word && s[i] != c && (in_word = 1))
start = i;
else if (in_word && s[i] == c)
{
if ((tab[nb_words] = ft_strsub(s, start, i - start)) == NULL)
{
while (--nb_words >= 0)
ft_strdel(&tab[nb_words]);
free(tab);
return (NULL);
}
nb_words++;
in_word = 0;
}
return (tab);
}
char **ft_strsplit(char const *s, char c)
{
int nb_words;
char **tab;
nb_words = count_words(s, c);
if ((tab = (char**)malloc(sizeof(char**) * (nb_words + 1))) == NULL)
return (NULL);
tab[nb_words] = NULL;
return (get_table(s, c, tab));
}