redirection.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   redirection.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: emohamed <emohamed@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/09/17 18:42:46 by haarab            #+#    #+#             */
/*   Updated: 2023/09/30 21:43:12 by emohamed         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minishell.h"

int	is_redirection(char *arg)
{
	if (!ft_strncmp(">>", arg, ft_strlen(arg)) || !ft_strncmp("<<", arg,
			ft_strlen(arg)) || !ft_strncmp(">", arg, ft_strlen(arg))
		|| !ft_strncmp("<", arg, ft_strlen(arg)))
	{
		return (1);
	}
	return (0);
}

int	size_cmds_redirection(char **args)
{
	int	count;
	int	size;

	count = 0;
	size = 0;
	while (args[count])
	{
		if (is_redirection(args[count]))
			size++;
		count++;
	}
	return (size);
}

char	**clear_cmds_arg_from_direct(char **args)
{
	int		count;
	int		size;
	char	**stack_args;

	size = size_cmds_redirection(args);
	stack_args = malloc_((sizeof(char *) * (lenght_of_the_2d(args) - (size * 2)
					+ 1)), NULL, 0, NULL);
	count = 0;
	size = 0;
	while (args[count])
	{
		if ((count == 0 && !is_redirection(args[count]))
			|| (!is_redirection(args[count])
				&& !is_redirection(args[count - 1])))
		{
			stack_args[size] = args[count];
			size++;
		}
		count++;
	}
	stack_args[size] = 0;
	return (stack_args);
}

char	**get_redirectinsv(int size, char **old_stack)
{
	char	**stack;
	int		suui;
	int		count;

	stack = malloc_((sizeof(char *) * (size + 1)), NULL, 0, NULL);
	suui = 0;
	count = 0;
	while (old_stack[count] && suui < size)
	{
		if (is_redirection(old_stack[count]))
		{
			stack[suui] = old_stack[count];
			suui++;
		}
		count++;
	}
	stack[suui] = 0;
	return (stack);
}

char	**get_files(int size, char **old_stack)
{
	char	**stack;
	int		suui;
	int		count;

	suui = 0;
	count = 0;
	stack = malloc_((sizeof(char *) * (size + 1)), NULL, 0, NULL);
	while (old_stack[count] && suui < size)
	{
		if (is_redirection(old_stack[count]))
		{
			stack[suui] = old_stack[count + 1];
			suui++;
		}
		count++;
	}
	stack[suui] = 0;
	return (stack);
}