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ft_strtrim.c
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ft_strtrim.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strtrim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dalcabre <dalcabre@student.42urduliz.co +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/01/22 11:20:16 by dalcabre #+# #+# */
/* Updated: 2024/01/25 16:52:51 by dalcabre ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static size_t find_start(char const *s1, char const *set)
{
size_t start;
start = 0;
while (s1[start] && ft_strchr(set, s1[start]))
{
start++;
}
return (start);
}
char *ft_strtrim(char const *s1, char const *set)
{
size_t start;
size_t end;
size_t s2_len;
char *s2;
if (!s1 || !set)
return (NULL);
start = find_start(s1, set);
end = ft_strlen(s1);
if (start == end)
return (ft_strdup(""));
while (end > start && ft_strchr(set, s1[end - 1]))
{
end--;
}
s2_len = end - start;
s2 = (char *)malloc(s2_len + 1);
if (!s2)
return (NULL);
ft_strlcpy(s2, s1 + start, (s2_len + 1));
s2[s2_len] = '\0';
return (s2);
}
/*int main(void)
{
char const *s1 = "Hi, I'm Edu";
char const *set = "Hi, I";
char const *result = ft_strtrim(s1, set);
printf("%s", result);
free((void *) result);
return (0);
}*/