ft_strtrim.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: adbouras <adbouras@student.1337.ma>        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/12/15 15:30:36 by adbouras          #+#    #+#             */
/*   Updated: 2023/12/27 17:48:02 by adbouras         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strtrim(char const *s1, char const *set)
{
	int		s1_len;
	int		i;

	if (!s1)
		return (NULL);
	if (!set)
		return (ft_strdup(s1));
	s1_len = ft_strlen(s1);
	i = 0;
	while (s1[i] != '\0' && ft_strchr(set, s1[i]) != NULL)
		i++;
	while (s1_len > i && ft_strrchr(set, s1[s1_len]) != NULL)
		s1_len--;
	return (ft_substr(s1, i, s1_len - i + 1));
}