Files
42_INT_01_libft/srcs/part2/ft_split.c
2019-12-12 20:51:01 +01:00

122 lines
2.0 KiB
C

/*
** return an array of string with each word found in str, with c as separator
*/
/*
** #include <stdio.h>
** #include <stdlib.h>
** #include <unistd.h>
**
** size_t ft_strlen(const char *str)
** {
** size_t i;
**
** i = 0;
** while (str[i])
** i++;
** return (i);
** }
**
** char *ft_substr(char const *s, unsigned int start, size_t len)
** {
** char *str;
** size_t i;
**
** if (!s)
** return (NULL);
** if (ft_strlen(s) < start)
** return ("");
** if (!(str = (char *)malloc(sizeof(char) * (len + 1))))
** return (NULL);
** i = 0;
** while (i < len && s[start])
** str[i++] = s[start++];
** str[i] = '\0';
** return (str);
** }
**
** char **ft_split(char const *s, char c);
** char **ft_strsplit(char const *s, char c);
**
** int main(void)
** {
** char **str;
** int i;
**
** char *s;
** char c;
**
** i = -1;
** s = "svh ile ifh oiuo";
** c = ' ';
** str = ft_split(s, c);
** if (str)
** {
** printf("s : '%s'\n", s);
** printf("*str : '%p'\n", str[0]);
** while (str[++i])
** printf("str[%i] : '%s'\n", i, str[i]);
** }
** return (0);
** }
*/
#include "libft.h"
static int count(char const *s, char c)
{
int i;
int words;
i = -1;
words = 0;
while (s[++i] != '\0')
if (s[i] != c && ++words)
while (s[i + 1] != '\0' && s[i + 1] != c)
i++;
return (words);
}
void *ft_free(char **array, int w)
{
int i;
i = 0;
while (array[i] != NULL && i < w)
free(array[i++]);
free(array);
return (NULL);
}
char **ft_split(char const *s, char c)
{
char **array;
int w;
int len;
w = 0;
// if (!s)
// {
// array = malloc(sizeof(char*));
// array[0] = 0;
// return (array);
// }
if (!s || !(array = (char **)malloc(sizeof(char *) * (count(s, c) + 1))))
return (NULL);
while (*s != '\0')
{
len = 0;
if (*s != c)
{
while (s[len] != '\0' && s[len] != c)
len++;
if (!(array[w++] = ft_substr(s, 0, len)))
return (ft_free(array, w));
s += len - 1;
}
s++;
}
array[w] = NULL;
return (array);
}