99 lines
2.1 KiB
C
99 lines
2.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_split.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: cchauvet <cchauvet@student.42angoulem +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/09/29 17:37:50 by cchauvet #+# #+# */
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/* Updated: 2022/10/04 21:24:29 by cchauvet ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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static size_t ft_seglen(const char *s, char c)
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{
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size_t len;
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size_t i;
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if (*s == 0)
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return (1);
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len = 1;
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i = 0;
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while (s[i])
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{
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while (s[i] == c && s[i])
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i++;
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if (s[i])
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len++;
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while (s[i] != c && s[i])
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i++;
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}
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if (len == 1)
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return (2);
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return (len);
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}
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static void *ft_cancel(size_t len, char **tab)
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{
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size_t i;
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i = 0;
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while (i < len)
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{
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free(tab[i]);
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i++;
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}
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free(tab);
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return (NULL);
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}
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static char **ft_segmentator(const char *s, char c, size_t len, char **tab)
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{
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size_t i;
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size_t j;
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ssize_t start;
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if (tab == NULL)
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return (NULL);
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i = 0;
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j = 0;
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while (i < len)
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{
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while (s[j] == c)
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j++;
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start = j;
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while (s[j] != c)
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j++;
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tab[i] = ft_substr(s, start, j - start);
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if (tab[i] == NULL)
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return (ft_cancel(len, tab));
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i++;
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}
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return (tab);
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}
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char **ft_split(const char *s, char c)
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{
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char **tab;
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size_t len;
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if (s == NULL)
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return (NULL);
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len = ft_seglen(s, c);
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tab = malloc(sizeof(char *) * (len));
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if (tab == NULL)
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return (NULL);
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if (c == 0 || !*s)
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{
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tab[0] = ft_strdup(s);
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if (tab[0] == NULL)
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return (NULL);
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}
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else
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tab = ft_segmentator(s, c, len - 1, tab);
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tab[len - 1] = NULL;
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return (tab);
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}
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