102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_strtrim.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 14:01:49 by hulamy #+# #+# */
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/* Updated: 2019/12/09 21:46:54 by hulamy ### ########.fr */
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/* */
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/* ************************************************************************** */
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/*
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** create a copy of s without the firsts and lasts set of characters
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*/
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/*
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** #include <libc.h>
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**
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** char *ft_substr(char const *s, unsigned int start, size_t len)
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** {
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** char *str;
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** size_t i;
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**
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** if (!s)
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** return (NULL);
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** if (!(str = (char *)malloc(sizeof(char) * (len + 1))))
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** return (NULL);
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** str[len] = '\0';
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** i = 0;
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** while (i < len)
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** str[i++] = s[start++];
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** return (str);
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** }
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**
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** size_t ft_strlen(const char *str)
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** {
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** size_t i;
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**
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** i = 0;
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** while (str[i])
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** i++;
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** return (i);
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** }
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**
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** char *ft_strchr(const char *s, int c)
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** {
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** int i;
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** int j;
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**
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** i = 0;
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** j = -1;
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** while (s[i])
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** i++;
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** while (++j < i + 1)
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** if (s[j] == c)
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** return ((char *)s + j);
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** return (NULL);
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** }
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**
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** char *ft_strtrim(char const *s1, char const *set);
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**
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** int main(int ac, char **av)
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** {
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** char *s1;
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** char *s2;
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**
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** if (ac == 3)
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** {
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** s1 = strdup(av[1]);
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** s2 = strdup(av[2]);
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** }
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** if (ac == 1)
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** {
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** s1 = "fuehf";
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** s2 = NULL;
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** }
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** printf("%s\n",ft_strtrim(s1, s2));
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** return (0);
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** }
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*/
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#include "libft.h"
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char *ft_strtrim(char const *s1, char const *set)
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{
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int len;
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char *str;
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if (!s1 || !set)
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return (NULL);
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while (s1[0] && ft_strchr(set, s1[0]))
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s1++;
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len = ft_strlen(s1) - 1;
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while (len >= 0 && ft_strchr(set, s1[len]))
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len--;
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len++;
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if (!(str = ft_substr(s1, 0, len)))
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return (NULL);
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return (str);
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}
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