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ft_strtrim.c
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ft_strtrim.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strtrim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ahjadani <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/05 09:41:16 by ahjadani #+# #+# */
/* Updated: 2021/11/14 18:09:00 by ahjadani ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strtrim(char const *s1, char const *set)
{
ssize_t i;
ssize_t j;
char *str;
if (!s1 || !set)
return (NULL);
i = 0;
j = ft_strlen(s1) - 1;
while (ft_strchr((char *)set, s1[i]))
i++;
while (ft_strrchr((char *)set, s1[j]))
j--;
if (j < i)
return (ft_strdup(""));
str = malloc(j - i + 2);
if (!str)
return (NULL);
ft_strlcpy(str, s1 + i, j - i + 2);
return (str);
}