/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/09/29 02:41:32 by erey-bet          #+#    #+#             */
/*   Updated: 2022/10/05 14:41:29 by erey-bet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

static int	get_start(const char *str, char const *set)
{
	int	i;
	int	y;
	int	check;

	i = 0;
	while (str[i])
	{
		y = 0;
		check = 0;
		while (set[y])
			if (str[i] == set[y++])
				check = 1;
		if (check == 0)
			return (i);
		i++;
	}
	return (0);
}

static int	get_end(const char *str, char const *set)
{
	int	i;
	int	y;
	int	check;

	i = ft_strlen(str) - 1;
	while (i > 0)
	{
		y = 0;
		check = 0;
		while (set[y])
			if (str[i] == set[y++])
				check = 1;
		if (check == 0)
			return (i + 1);
		i--;
	}
	return (0);
}

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

	if (s1 == NULL || set == NULL)
		return (NULL);
	start = get_start(s1, set);
	end = get_end(s1, set);
	str = malloc(end - start + 1);
	if (str == NULL)
		return (NULL);
	i = 0;
	while (start < end)
	{
		str[i++] = s1[start];
		start++;
	}
	str[i] = '\0';
	return (str);
}