115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* syntax.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: nalebrun <nalebrun@student.s19.be> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2025/02/07 12:08:53 by nalebrun #+# #+# */
|
|
/* Updated: 2025/02/07 17:58:30 by nalebrun ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "../../includes/parser/parsing.h"
|
|
|
|
int only_operator(t_node *head)
|
|
{
|
|
if (!head->next && head->token == OPERATOR)
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
int syntax_err_mess(char *token_base, int selected)
|
|
{
|
|
char *token;
|
|
|
|
token = ft_strdup(token_base);
|
|
if (selected == 0)
|
|
ft_fprintf(2, "minishell : syntax error : unexpected token `%s'\n",
|
|
token);
|
|
if (selected == 2)
|
|
ft_fprintf(2, "minishell : syntax error : unoppened token `%s'\n",
|
|
&token[1]);
|
|
token[1] = 0;
|
|
if (selected == 1)
|
|
ft_fprintf(2, "minishell : syntax error : unclosed token `%s'\n",
|
|
token);
|
|
free(token);
|
|
return (1);
|
|
}
|
|
|
|
int unexpected_token(t_node *node)
|
|
{
|
|
if ((!ft_strncmp(node->val, "&", 1) && ft_strncmp(node->val, "&&", 2))
|
|
|| !ft_strncmp(node->val, ";", 1) || !ft_strncmp(node->val, "[", 1)
|
|
|| !ft_strncmp(node->val, "]", 1) || !ft_strncmp(node->val, "{", 1)
|
|
|| !ft_strncmp(node->val, "}", 1))
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
int check_unclosed(char *c, t_node *node)
|
|
{
|
|
t_node *cpy;
|
|
int count;
|
|
|
|
cpy = node;
|
|
count = 0;
|
|
while (cpy)
|
|
{
|
|
if (!ft_strncmp(&c[0], cpy->val, 1))
|
|
count++;
|
|
if (!ft_strncmp(&c[1], cpy->val, 1))
|
|
count--;
|
|
cpy = cpy->next;
|
|
}
|
|
if (count > 0)
|
|
return (1);
|
|
if (count < 0)
|
|
return (2);
|
|
return (0);
|
|
}
|
|
|
|
int check_unclosed_quote(char *c, t_node *node)
|
|
{
|
|
t_node *cpy;
|
|
int count;
|
|
int len;
|
|
|
|
cpy = node;
|
|
count = 0;
|
|
while (cpy)
|
|
{
|
|
len = ft_strlen(cpy->val);
|
|
if (len > 0 && cpy->val[0] == c[0])
|
|
{
|
|
if (len == 1 || cpy->val[len - 1] != c[0])
|
|
count++;
|
|
}
|
|
cpy = cpy->next;
|
|
}
|
|
return (count % 2);
|
|
}
|
|
|
|
int syntax_error(t_node *head)
|
|
{
|
|
t_node *cpy;
|
|
|
|
if (only_operator(head))
|
|
return (syntax_err_mess(head->val, 0));
|
|
cpy = head;
|
|
while (cpy)
|
|
{
|
|
if (unexpected_token(cpy))
|
|
return (syntax_err_mess(cpy->val, 0));
|
|
cpy = cpy->next;
|
|
}
|
|
if (check_unclosed("()", head) != 0)
|
|
return (syntax_err_mess("()", check_unclosed("()", head)));
|
|
if (check_unclosed_quote("\"", head) != 0)
|
|
return (syntax_err_mess("\"\"", 1));
|
|
if (check_unclosed_quote("'", head) != 0)
|
|
return (syntax_err_mess("'", 1));
|
|
return (0);
|
|
}
|