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35 lines (32 loc) · 1.26 KB
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Copy pathft_strtrim.c
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35 lines (32 loc) · 1.26 KB
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strtrim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mrafik <mrafik@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/14 16:19:57 by mrafik #+# #+# */
/* Updated: 2021/11/24 15:38:44 by mrafik ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strtrim(char const *s1, char const *set)
{
size_t i;
int j;
char *p;
if (!s1)
return (NULL);
i = 0;
j = ft_strlen(s1);
while (ft_strchr(set, s1[i]) && i < ft_strlen(s1))
i++;
while (ft_strrchr(set, s1[j]) && j > 0)
j--;
if (i == ft_strlen(s1) && j == 0)
return (ft_strdup(""));
p = ft_substr(s1, i, (j - i + 1));
if (!p)
return (NULL);
return (p);
}