71 lines
1.9 KiB
C
71 lines
1.9 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: bgoulard <bgoulard@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/11/07 21:03:17 by bgoulard #+# #+# */
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/* Updated: 2023/12/05 10:28:33 by bgoulard ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ft_string.h"
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#include <stdlib.h>
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static int loc_strchr(const char *str, int c)
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{
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int i;
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i = 0;
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while (str[i])
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{
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if (str[i] == c)
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return (i);
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i++;
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}
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return (-1);
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}
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static size_t loc_strtrim_size(size_t *offset, char const *s1,
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char const *set)
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{
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size_t ret_size;
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ret_size = ft_strlen(s1);
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*offset = 0;
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while (ret_size > 0 && loc_strchr(set, s1[ret_size - 1]) != -1)
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ret_size--;
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while (ret_size && s1[*offset] && loc_strchr(set, s1[*offset]) != -1)
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{
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(*offset)++;
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ret_size--;
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}
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return (ret_size);
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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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char *ret;
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size_t ret_size;
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size_t offset;
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size_t offset_ret;
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if (!s1)
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return (NULL);
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if (!set)
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return (ft_strdup(s1));
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offset_ret = 0;
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ret_size = loc_strtrim_size(&offset, s1, set);
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if (ret_size == 0)
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return (ft_strdup(""));
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ret = ft_calloc(sizeof(char), (ret_size + 1));
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if (!ret)
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return (ret);
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while (s1[offset] && ret_size--)
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ret[offset_ret++] = s1[offset++];
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offset--;
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while (loc_strchr(set, s1[offset--]) != -1)
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ret[offset_ret--] = 0;
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return (ret);
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}
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