utils_3.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   utils_3.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: phelebra <xhelp00@gmail.com>               +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/06/21 13:14:37 by fvonsovs          #+#    #+#             */
/*   Updated: 2023/08/01 14:55:13 by phelebra         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minishell.h"

// following mostly for lexer
/* 
	takes 3d matrix
	returns 2d array 
*/
char	**ft_matrix_replace_in(char ***big, char **small, int n)
{
	char	**aux;
	int		i[3];

	i[0] = -1;
	i[1] = -1;
	i[2] = -1;
	if (!big || !*big || n < 0 || n >= ft_matrixlen(*big))
		return (NULL);
	aux = ft_calloc(ft_matrixlen(*big) + ft_matrixlen(small), sizeof(char *));
	while (aux && big[0][++i[0]])
	{
		if (i[0] != n)
			aux[++i[2]] = ft_strdup(big[0][i[0]]);
		else
		{
			while (small && small[++i[1]])
				aux[++i[2]] = ft_strdup(small[i[1]]);
		}
	}
	ft_free_matrix(big);
	*big = aux;
	return (*big);
}

int	ft_matrixlen(char **m)
{
	int	i;

	i = 0;
	while (m && m[i])
		i++;
	return (i);
}

void	ft_free_matrix(char ***m)
{
	int	i;

	i = 0;
	while (m && m[0] && m[0][i])
	{
		free(m[0][i]);
		i++;
	}
	if (m)
	{
		free(m[0]);
		*m = NULL;
	}
}