/*
Libft Copyright (C) 2026 yctct

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

#include "libft.h"

char	*ft_strtrim(char const *s1, char const *set)
{
	int		i;
	char	*ptr;
	int		start;
	int		end;
	int		slen;

	i = 0;
	while (s1[i] && ft_strchr(set, s1[i]))
		i++;
	start = i;
	slen = ft_strlen(s1);
	i = 0;
	while (s1[slen - i - 1] && ft_strchr(set, s1[slen - i - 1]))
		i++;
	end = i;
	ptr = ft_substr(s1, start, (slen - start - end));
	return (ptr);
}