ft_strtrim.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strtrim.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hezzahir <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2018/11/05 20:08:05 by hezzahir          #+#    #+#             */
/*   Updated: 2018/11/06 07:54:44 by hezzahir         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strtrim(char const *s)
{
	int		start;
	int		end;

	if (!s)
		return (NULL);
	start = 0;
	end = ft_strlen(s) - 1;
	while (s[start] == ' ' || s[start] == '\t' || s[start] == '\n')
	{
		start++;
	}
	while ((s[end] == ' ' || s[end] == '\t' || s[end] == '\n') && end > start)
	{
		end--;
	}
	return (ft_strsub(s, start, (end - start + 1)));
}