42_minishell/syntatics.c

#include "libftx/libftx.h"
#include "minishell.h"
#include "utils/utils.h"

static int	ft_quote_verif(const char *str)
{
	if (ft_is_in_quote(str, ft_strlen(str)))
	{
		ft_eprintf("minishell: Quote is note closed");
		return (1);
	}
	else
		return (0);
}

static int	ft_pipe_is_alone(const char *str)
{
	size_t	i;
	int		check;

	check = 0;
	i = 0;
	while (str[i] != '\0')
	{
		if (str[i] != '|')
			check = 1;
		else
		{
			if (check == 0)
			{
				ft_eprintf("minishell: Pipe must be followed and ");
				ft_eprintf("preced by a command or redirection\n");
				return (1);
			}
			check = 0;
		}
		i++;
	}
	return (0);
}

static int	ft_special_char_dub(const char *str)
{
	size_t	i;
	size_t	y;

	i = 0;
	while (str[i] != '\0')
	{
		while (ft_is_in_quote(str, i))
			i++;
		if (ft_is_in("|<>", str[i]))
		{
			y = 0;
			while (str[i] == str[i + y])
				y++;
			if ((y > 2 && (str[i] == '>' || str[i] == '<'))
				|| (y > 1 && str[i] == '|'))
			{
				ft_eprintf("minishell: to many %c in a row", str, str[i]);
				return (1);
			}
			i = i + y;
		}
		i++;
	}
	return (0);
}

int	ft_empty_verif(const char *str)
{
	size_t	i;

	i = 0;
	while (str[i] == ' ')
		i++;
	if (str[i] == '\0')
		ft_eprintf("minishell: %s: command not found \n", str);
	return (str[i] == '\0');
}

int	ft_syntatic_verif(const char *str)
{
	return (ft_quote_verif(str)
		|| ft_pipe_is_alone(str)
		|| ft_empty_verif(str)
		|| ft_special_char_dub(str));
}