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ft_strtrim.c
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ft_strtrim.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strtrim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: bbilgili <bbilgili@student.42istanbul.c +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/10/08 14:17:57 by bbilgili #+# #+# */
/* Updated: 2022/10/08 14:17:57 by bbilgili ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int checker(char c, const char *set)
{
int i;
i = 0;
while (set[i])
if (set[i++] == c)
return (1);
return (0);
}
char *ft_strtrim(char const *s1, char const *set)
{
int i;
int j;
int k;
char *s2;
i = 0;
k = 0;
if (s1 == 0 || set == 0)
return (NULL);
j = ft_strlen(s1);
while (s1[i] && checker(s1[i], set))
i++;
while (j > i && checker(s1[j - 1], set))
j--;
s2 = (char *)malloc(sizeof(char) * (j - i + 1));
if (!s2)
return (NULL);
while (i < j)
{
s2[k++] = s1[i++];
}
s2[k] = '\0';
return (s2);
}