90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* top_token.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: nalebrun <nalebrun@student.s19.be> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2025/01/31 17:14:26 by nalebrun #+# #+# */
|
|
/* Updated: 2025/02/14 10:59:00 by nalebrun ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "../../../../includes/minishell.h"
|
|
#include <string.h>
|
|
|
|
static void skip_parentheses(t_node **lst)
|
|
{
|
|
if (!ft_strncmp((*lst)->val, "(", 1))
|
|
{
|
|
(*lst) = (*lst)->next;
|
|
while (*lst && ft_strncmp((*lst)->val, ")", 1))
|
|
{
|
|
if (!ft_strncmp((*lst)->val, "(", 1))
|
|
skip_parentheses(lst);
|
|
else
|
|
(*lst) = (*lst)->next;
|
|
}
|
|
if (*lst)
|
|
(*lst) = (*lst)->next;
|
|
}
|
|
}
|
|
|
|
static t_node *find_token(char *tok, t_node *lst)
|
|
{
|
|
while (lst)
|
|
{
|
|
skip_parentheses(&lst);
|
|
if (lst && !ft_strncmp(lst->val, tok, ft_strlen(tok)))
|
|
return (lst);
|
|
if (lst)
|
|
lst = lst->next;
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
static t_node *rfind_token(char *tok, t_node *lst)
|
|
{
|
|
t_node *lst_it;
|
|
|
|
lst_it = NULL;
|
|
while (lst)
|
|
{
|
|
skip_parentheses(&lst);
|
|
if (lst && !ft_strncmp(lst->val, tok, ft_strlen(tok)))
|
|
lst_it = lst;
|
|
if (lst)
|
|
lst = lst->next;
|
|
}
|
|
return (lst_it);
|
|
}
|
|
|
|
t_node *get_top_token(t_node *lst, t_state *state)
|
|
{
|
|
*state = _SUBSH;
|
|
if (rfind_token("&&", lst) > rfind_token("||", lst))
|
|
{
|
|
*state = _AND;
|
|
return (find_token("&&", lst));
|
|
}
|
|
else if (rfind_token("||", lst) > rfind_token("&&", lst))
|
|
{
|
|
*state = _OR;
|
|
return (find_token("||", lst));
|
|
}
|
|
else if (find_token("|", lst))
|
|
{
|
|
*state = _PLINE;
|
|
return (find_token("|", lst));
|
|
}
|
|
else if (!ft_strncmp(lst->val, "(", 1) && last_tok_redir(lst))
|
|
return (lst);
|
|
else if (!ft_strncmp(lst->val, "(", 1) && last_tok_subsh(lst))
|
|
return (lst);
|
|
else
|
|
{
|
|
*state = UNDEF;
|
|
return (NULL);
|
|
}
|
|
}
|