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ft_strtrim.c
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ft_strtrim.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strtrim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: orodrigo <orodrigo@student.42sp.org.br> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/06/19 22:12:54 by orodrigo #+# #+# */
/* Updated: 2021/06/24 18:44:45 by orodrigo ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int ft_charcmp(char c, char const *set)
{
int i;
i = 0;
while (set[i] != '\0')
{
if (set[i] == c)
return (1);
i++;
}
return (0);
}
char *ft_strtrim(char const *s1, char const *set)
{
char *trim;
size_t i;
size_t len;
size_t begin;
size_t end;
if (!s1 || !set)
return (0);
i = 0;
while (s1[i] != '\0' && ft_charcmp(s1[i], set))
i++;
begin = i;
i = ft_strlen(s1) - 1;
while (i && ft_charcmp(s1[i], set))
i--;
end = i;
if (end >= begin)
len = end - begin + 1;
else
len = 0;
trim = (char *)malloc((len + 1) * sizeof(char));
if (trim == 0)
return (0);
ft_strlcpy(trim, &s1[begin], len + 1);
return (trim);
}