ft_strtrim.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yjouaoud <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/04/12 21:28:27 by yjouaoud          #+#    #+#             */
/*   Updated: 2019/04/13 15:26:25 by yjouaoud         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strtrim(char const *s)
{
	int		i;
	int		j;

	i = 0;
	if (!s)
		return (NULL);
	while (s[i] == ' ' || s[i] == '\n' || s[i] == '\t')
		i++;
	if (s[i] == '\0')
		return (ft_strnew(0));
	j = (int)ft_strlen(s) - 1;
	while (s[j] == ' ' || s[j] == '\n' || s[j] == '\t')
		j--;
	return (ft_strsub(s, i, j - i + 1));
}