96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* top_token.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: nalebrun <nalebrun@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/01/31 17:14:26 by nalebrun #+# #+# */
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/* Updated: 2025/02/07 17:56:02 by nalebrun ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../../../includes/minishell.h"
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#include <string.h>
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static int last_tok_subsh(t_node *lst)
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{
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while (lst)
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{
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if ((lst->next == NULL) && !ft_strncmp(lst->val, ")", 1))
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return (1);
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lst = lst->next;
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}
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return (0);
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}
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static int last_tok_redir(t_node *lst)
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{
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while (lst)
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{
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if ((lst->next == NULL
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|| lst->next->pressision == D_RED_R
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|| lst->next->pressision == RED_R
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|| lst->next->pressision == RED_L
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|| lst->next->pressision == HEREDOC)
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&& !ft_strncmp(lst->val, ")", 1))
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return (1);
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lst = lst->next;
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}
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return (0);
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}
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static void skip_parentheses(t_node **lst)
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{
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if (!ft_strncmp((*lst)->val, "(", 1))
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{
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while ((*lst)->next && ft_strncmp((*lst)->next->val, ")", 1))
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{
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if (!ft_strncmp((*lst)->val, "(", 1))
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skip_parentheses(&(*lst)->next);
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*lst = (*lst)->next;
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}
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}
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}
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static t_node *find_token(char *tok, t_node *lst)
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{
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while (lst)
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{
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skip_parentheses(&lst);
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if (!ft_strncmp(lst->val, tok, ft_strlen(tok)))
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return (lst);
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lst = lst->next;
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}
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return (NULL);
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}
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t_node *get_top_token(t_node *lst, t_state *state)
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{
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*state = _SUBSH;
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if (!ft_strncmp(lst->val, "(", 1) && last_tok_subsh(lst))
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return (lst);
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if (find_token("&&", lst))
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{
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*state = _AND;
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return (find_token("&&", lst));
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}
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else if (find_token("||", lst))
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{
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*state = _OR;
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return (find_token("||", lst));
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}
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else if (find_token("|", lst))
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{
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*state = _PLINE;
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return (find_token("|", lst));
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}
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else if (!ft_strncmp(lst->val, "(", 1) && last_tok_redir(lst))
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return (lst);
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else
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{
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*state = UNDEF;
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return (NULL);
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}
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}
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