/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strnstr.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: thrieg <thrieg@student.42mulhouse.fr>      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/14 17:50:28 by thrieg            #+#    #+#             */
/*   Updated: 2025/02/16 19:05:13 by thrieg           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strnstr(const char *big, const char *little, size_t len)
{
	size_t	i;
	size_t	j;

	if (*little == '\0')
		return ((char *)big);
	i = 0;
	while (big[i] != '\0' && i < len)
	{
		j = 0;
		while (little[j] != '\0' && big[i + j] == little[j] && (i + j) < len)
			j++;
		if (little[j] == '\0')
			return ((char *)big + i);
		i++;
	}
	return (NULL);
}

int	ft_strhassuffix(const char *s, const char *suffix)
{
	size_t				i;
	size_t				j;

	i = ft_strlen(s);
	j = ft_strlen(suffix);
	if (i == 0 || j == 0)
		return (0);
	i--;
	j--;
	while (i > 0 && j > 0)
	{
		if (s[i] != suffix[j])
			return (0);
		i--;
		j--;
	}
	return (1);
}

/*
 * Same as ft_strcmp() but ignores eventual `\n` in the
 * comparison.
 */
int	ft_linecmp(const char *s1, const char *s2)
{
	size_t				i;
	const unsigned char	*a;
	const unsigned char	*b;

	i = 0;
	a = (const unsigned char *) s1;
	b = (const unsigned char *) s2;
	while (1)
	{
		if ((a[i] == '\n' && b[i] == '\0')
			|| (a[i] == '\0' && b[i] == '\n'))
			break ;
		if (a[i] != b[i])
			return (a[i] - b[i]);
		if (a[i] == '\0')
			break ;
		i++;
	}
	return (0);
}

size_t	ft_linelen(const char *line)
{
	size_t	i;

	i = 0;
	while (line[i] != '\0' && line[i] != '\n')
		i++;
	return (i);
}