ft_strtrim.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: atabiti <marvin@42.fr>                     +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/11/16 11:17:22 by atabiti           #+#    #+#             */
/*   Updated: 2021/11/21 11:25:00 by atabiti          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
#include "libft.h"

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

	if (!s1)
		return (NULL);
	while (*s1 && ft_strchr(set, *s1))
		s1++;
	len = ft_strlen(s1);
	while (len > 0 && ft_strchr(set, s1[len -1]))
		len--;
	final = (char *) malloc (len + 1);
	if (!final)
		return (NULL);
	ft_strlcpy(final, s1, len + 1);
	return (final);
}