Seluj78/Minishell

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jlasne <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2016/11/03 16:17:55 by jlasne            #+#    #+#             */
/*   Updated: 2016/11/03 16:58:21 by jlasne           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char    *ft_strtrim(char const *s)
{
    char    *str;
    int        len;
    int        i;

    i = 0;
    if (!s)
        return (NULL);
    len = ft_strlen(s) - 1;
    while (s[len] == ' ' || s[len] == '\n' || s[len] == '\t')
        len--;
    len++;
    while ((i < len) && (s[i] == ' ' || s[i] == '\n' || s[i] == '\t'))
        i++;
    len = len - i;
    if (!(str = ft_strsub((char *)s, i, len)))
        return (NULL);
    str[len] = 0;
    return (str);
}