42_minishell/syntax/syntax.c
2023-03-22 16:07:27 +01:00

116 lines
2.5 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* syntatics.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cchauvet <cchauvet@student.42angoulem +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/02/21 13:00:05 by cchauvet #+# #+# */
/* Updated: 2023/02/21 23:40:20 by cchauvet ### ########.fr */
/* */
/* ************************************************************************** */
#include "../libftx/libftx.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 not closed\n");
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')
{
while (str[i] == ' ')
i++;
while (ft_is_in_quote(str, i))
i++;
if (str[i] == '\0')
break ;
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++;
}
if (check == 0)
{
ft_eprintf("minishell: Pipe must be followed and ");
ft_eprintf("preced by a command or redirection\n");
}
return (check == 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: too many %s in a row\n", str);
return (1);
}
i = i + y;
}
else if (str[i] != '\0')
i++;
}
return (0);
}
static int ft_empty_verif(const char *str)
{
size_t i;
i = 0;
while (str[i] == ' ')
i++;
return (str[i] == '\0');
}
int ft_syntax_verif(t_data *data, const char *str)
{
if (ft_empty_verif(str))
return (1);
if (ft_quote_verif(str)
|| ft_pipe_is_alone(str)
|| ft_special_char_dub(str))
{
data->exit_code = 2;
return (1);
}
return (0);
}