ft_strtrim.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jlinarez <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/03/21 14:03:25 by jlinarez          #+#    #+#             */
/*   Updated: 2024/03/21 14:24:02 by jlinarez         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	if (s1 == NULL || set == NULL)
		return (NULL);
	i = 0;
	while (s1[i] && ft_strchr(set, s1[i]))
		i++;
	j = ft_strlen(s1);
	while (j > i && ft_strchr(set, s1[j - 1]))
		j--;
	str = (char *)malloc(sizeof(char) * (j - i + 1));
	if (str == NULL)
		return (NULL);
	ft_strlcpy(str, s1 + i, j - i + 1);
	return (str);
}