ft_strtrim.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mavinici <mavinici@student.42sp.org.br>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/05/21 20:53:54 by mavinici          #+#    #+#             */
/*   Updated: 2021/05/21 20:53:54 by mavinici         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <libft.h>

char	*ft_strtrim(char const *s1, char const *set)
{
	size_t	i;

	if (s1 == NULL || set == NULL)
		return (NULL);
	while (*s1 && ft_strchr(set, *s1))
		s1++;
	i = ft_strlen(s1);
	while (i && ft_strchr(set, s1[i]))
		i--;
	return (ft_substr(s1, 0, i + 1));
}