/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_split.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/12/04 15:51:26 by hulamy            #+#    #+#             */
/*   Updated: 2019/12/04 15:51:28 by hulamy           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

/*
** return an array of string with each word found in str, with c as separator
*/

/*
**	#include <stdio.h>
**	#include <stdlib.h>
**	#include <unistd.h>
**
**	size_t		ft_strlen(const char *str)
**	{
**		size_t i;
**
**		i = 0;
**		while (str[i])
**			i++;
**		return (i);
**	}
**
**	char	*ft_substr(char const *s, unsigned int start, size_t len)
**	{
**		char	*str;
**		size_t	i;
**
**		if (!s)
**			return (NULL);
**		if (ft_strlen(s) < start)
**			return ("");
**		if (!(str = (char *)malloc(sizeof(char) * (len + 1))))
**			return (NULL);
**		i = 0;
**		while (i < len && s[start])
**			str[i++] = s[start++];
**		str[i] = '\0';
**		return (str);
**	}
**
**	char		**ft_split(char const *s, char c);
**	char		**ft_strsplit(char const *s, char c);
**
**	int		main(void)
**	{
**		char	**str;
**		int		i;
**
**		char	*s;
**		char	c;
**
**			i = -1;
**			s = NULL;
**			c = 'c';
**			str = ft_split(s, c);
**			if (str)
**			{
**				printf("*str : '%p'\n", str[0]);
**				while (str[++i])
**					printf("str[%i] : '%s'\n", i, str[i]);
**			}
**		return (0);
**	}
*/

#include "libft.h"

static int	count(char const *s, char c)
{
	int		i;
	int		words;

	i = -1;
	words = 0;
	while (s[++i])
		if (s[i] != c && ++words)
			while (s[i + 1] && s[i + 1] != c)
				i++;
	return (words);
}

char		**ft_split(char const *s, char c)
{
	char	**array;
	int		w;
	int		len;

	w = 0;
	if (!s || !c || !(array = malloc(sizeof(char *) * (count(s, c) + 1))))
		return (NULL);
	while (*s && !(len = 0))
	{
		if (*s != c)
		{
			while (s[len] && s[len] != c)
				len++;
			if (!(array[w++] = ft_substr(s, 0, len)))
			{
				while (array)
					free(array++);
				return (NULL);
			}
		}
		s += len ? len : 1;
	}
	array[w] = NULL;
	return (array);
}