45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_strtrim.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: cchauvet <cchauvet@student.42angoulem +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/09/29 11:33:53 by cchauvet #+# #+# */
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/* Updated: 2022/09/29 18:03:20 by cchauvet ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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static int ft_is_in(const char c, const char *charset)
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{
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while (*charset)
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{
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if (c == *charset)
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return (1);
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charset++;
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}
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return (0);
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}
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char *ft_strtrim(const char *s1, const char *set)
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{
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size_t start;
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size_t stop;
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char *str;
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if (s1 == NULL || set == NULL)
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return (NULL);
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if (!*s1 || !*s1)
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return (ft_strdup(""));
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start = 0;
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while (ft_is_in(s1[start], set))
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start++;
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stop = ft_strlen(s1) - 1;
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while (ft_is_in(s1[stop], set))
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stop--;
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str = ft_substr(s1, start, stop - start + 1);
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return (str);
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}
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