pipex/libft/ft_split.c
Etienne Rey-bethbeder 5f970ff3d8 0.1
2023-01-11 17:36:09 +01:00

118 lines
2.4 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_split.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: erey-bet <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/07/28 09:52:05 by erey-bet #+# #+# */
/* Updated: 2022/10/12 16:14:08 by erey-bet ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int get_len_all(char const *s, char c)
{
int i;
int check;
int count;
i = 0;
check = 0;
count = 0;
while (s[i])
{
if (s[i] != c && check == 0)
{
count++;
check = 1;
}
else if (s[i] == c && check == 1)
check = 0;
i++;
}
return (count);
}
static int get_len_next(char const *s, char c, int i)
{
int y;
int count;
y = i;
count = 0;
while (s[y] == c)
y++;
while (s[y] && s[y++] != c)
count++;
return (count);
}
static void *ft_malloc_split(char **strs, int *iyx, char const *s, char c)
{
iyx[1]++;
strs[iyx[1]] = malloc(get_len_next(s, c, iyx[0]) + 1);
if (strs[iyx[1]] == NULL)
{
iyx[1]--;
while (iyx[1] >= 0)
{
free(strs[iyx[1]]);
iyx[1]--;
}
free(strs);
return (NULL);
}
return ("");
}
static char **ft_split_bis(char const *s, char c, char **strs, int *iyx)
{
int boo;
boo = 0;
while (s[iyx[0]])
{
if (s[iyx[0]] != c)
{
if (boo == 0)
if (ft_malloc_split(strs, iyx, s, c) == NULL)
return (NULL);
boo = 1;
strs[iyx[1]][iyx[2]] = s[iyx[0]];
iyx[2]++;
}
else if (boo == 1)
{
strs[iyx[1]][iyx[2]] = '\0';
iyx[2] = 0;
boo = 0;
}
iyx[0]++;
}
if (boo == 1)
strs[iyx[1]][iyx[2]] = '\0';
return (strs);
}
char **ft_split(char const *s, char c)
{
char **strs;
int iyx[3];
iyx[0] = 0;
iyx[1] = -1;
iyx[2] = 0;
if (s == NULL)
return (NULL);
strs = malloc(sizeof(char *) * (get_len_all(s, c) + 1));
if (strs == NULL)
return (NULL);
if (ft_split_bis(s, c, strs, iyx) == NULL)
return (NULL);
iyx[1]++;
strs[iyx[1]] = NULL;
return (strs);
}