49 lines
1.6 KiB
C
49 lines
1.6 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: rparodi <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/11/09 13:55:44 by rparodi #+# #+# */
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/* Updated: 2025/09/01 18:26:20 by rparodi ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "str.h"
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#include <stdlib.h>
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/**
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* @brief Trims specified characters from the start and end of a string.
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*
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* @param s1 The string to trim.
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* @param set The set of characters to remove.
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*
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* @return A pointer to the trimmed string, or NULL if memory allocation fails.
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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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size_t i;
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size_t j;
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size_t k;
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char *str;
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if (!s1)
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return (NULL);
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i = 0;
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while (ft_strchr(set, s1[i]) != NULL && s1[i])
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i++;
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if (i == ft_strlen(s1))
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return (ft_strdup(""));
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j = ft_strlen(s1);
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while (ft_strrchr(set, s1[j - 1]) != NULL && j > i)
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j--;
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str = (char *)malloc(j - i + 1);
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if (!str)
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return (NULL);
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k = 0;
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while (i < j)
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str[k++] = s1[i++];
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str[k] = '\0';
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return (str);
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}
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