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ft_split.c
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ft_split.c
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#include "libft.h"
static char *shifter(char const *s, char c)
{
size_t i;
char *str;
str = (char *) s;
i = 0;
while (str[i] && str[i] == c)
i++;
return (&str[i]);
}
static void puk(size_t *w, size_t *l, size_t *ll, char **ss)
{
if (++(*w) && ll)
ll[*w - 1] = *l;
if (ss)
ss[*w - 1][*l] = '\0';
*l = 0;
}
static size_t counter(char const *s, char c, size_t *ll, char **ss)
{
size_t i;
size_t w;
size_t l;
char *str;
w = 0;
l = 0;
i = 0;
str = shifter(s, c);
while (str[i])
{
if (i && str[i - 1] != c && str[i] == c)
puk(&w, &l, ll, ss);
if (str[i++] != c)
if (++l && ss)
ss[w][l - 1] = str[i - 1];
}
if (i && str[i - 1] != c)
puk(&w, &l, ll, ss);
return (w);
}
static void *erase(char **ss, size_t i)
{
while (i)
free(ss[--i]);
free(ss);
return (NULL);
}
char **ft_split(char const *s, char c)
{
char **ss;
size_t *ll;
size_t w;
size_t i;
if (!s)
return (NULL);
w = counter(s, c, NULL, NULL);
ll = malloc(sizeof(*ll) * w);
ss = malloc(sizeof(*ss) * counter(s, c, ll, NULL) + 1);
i = 0;
while (ss && ll && i < w)
{
ss[i] = malloc(sizeof(*ss[i]) * (ll[i] + 1));
if (!(ss[i++]))
return (erase(ss, i - 1));
}
counter(s, c, NULL, ss);
if (ss)
ss[w] = NULL;
free(ll);
return (ss);
}