ft_strtrim.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: elel-yak <elel-yak@student.1337.ma>        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/10/22 22:32:01 by elel-yak          #+#    #+#             */
/*   Updated: 2022/10/23 22:35:23 by elel-yak         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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