/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: whaffman <whaffman@student.codam.nl>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/07/05 18:42:11 by whaffman          #+#    #+#             */
/*   Updated: 2024/07/10 12:48:45 by whaffman         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strtrim(char const *s1, char const *set)
{
	char	*front;
	char	*back;

	if (!s1)
		return (NULL);
	if (!ft_strlen(set))
		return (ft_strdup(s1));
	front = (char *) s1;
	back = (char *) s1;
	while (*back)
		back++;
	back--;
	while (ft_strchr(set, *front))
		front++;
	while (ft_strchr(set, *back))
		back--;
	return (ft_substr(s1, front - s1, back - front + 1));
}