ft_split.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_split.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ldel-val <ldel-val@student.42madrid>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/09/30 18:39:55 by ldel-val          #+#    #+#             */
/*   Updated: 2024/10/09 12:18:28 by ldel-val         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

static size_t	ft_count_words(char const *s, char c)
{
	size_t	word_count;
	size_t	i;

	word_count = 0;
	i = 0;
	while (s[i])
	{
		if (s[i] != c && (s[i + 1] == c || s[i + 1] == '\0'))
			word_count++;
		i ++;
	}
	return (word_count);
}

static char	*ft_get_word(char const *s, char c, size_t n)
{
	size_t	current_word;
	size_t	word_len;
	size_t	i;

	i = 0;
	current_word = 0;
	if (s[i] != c)
		current_word = 1;
	while (s[i] && current_word < n)
	{
		if (s[i] == c && s[i + 1] != c)
			current_word ++;
		i ++;
	}
	word_len = 0;
	while (s[i + word_len] != c && s[i + word_len])
		word_len ++;
	return (ft_substr(s, i, word_len));
}

static char	**ft_free_array(char **array, size_t n)
{
	size_t	i;

	i = 0;
	while (i < n)
	{
		free(array[i]);
		i ++;
	}
	free(array);
	return (NULL);
}

char	**ft_split(char const *s, char c)
{
	long	word_count;
	long	i;
	char	**split;

	word_count = ft_count_words(s, c);
	split = malloc(sizeof(char *) * (word_count + 1));
	if (!split)
		return (NULL);
	i = 0;
	while (i < word_count)
	{
		split[i] = ft_get_word(s, c, i + 1);
		if (!split[i])
			return (ft_free_array(split, i));
		i ++;
	}
	split[i] = NULL;
	return (split);
}
/*
int	main(void)
{
	char	s[] = "lorem ipsum dolor sit amet, consectetur adipiscing elit.";
	char	c = ' ';
	char	**split;

	//printf("%ld\n", ft_count_words(s, c));
	//printf("%s\n", ft_get_word(s, c, 1));
	split = ft_split(s, c);
	while (*split)
	{
		printf("%s\n", *split);
		split ++;
	}
}*/