124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* syntax.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: nalebrun <nalebrun@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/02/07 12:08:53 by nalebrun #+# #+# */
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/* Updated: 2025/02/11 16:31:12 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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int syntax_err_mess(char *token_base, int selected)
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{
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char *token;
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token = ft_strdup(token_base);
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if (selected == 0)
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ft_fprintf(2, "minishell : syntax error : unexpected token `%s'\n",
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token);
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if (selected == 2)
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ft_fprintf(2, "minishell : syntax error : unoppened token `%s'\n",
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&token[1]);
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token[1] = 0;
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if (selected == 1)
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ft_fprintf(2, "minishell : syntax error : unclosed token `%s'\n",
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token);
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if (selected == 3)
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ft_fprintf(2, "minishell : syntax error : unexpected end of file\n");
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free(token);
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return (1);
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}
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static int check_unclosed(char *c, t_node *node)
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{
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t_node *cpy;
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int count;
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cpy = node;
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count = 0;
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while (cpy)
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{
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if (!ft_strncmp(&c[0], cpy->val, 1))
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count++;
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if (!ft_strncmp(&c[1], cpy->val, 1))
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count--;
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cpy = cpy->next;
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}
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if (count > 0)
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return (1);
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if (count < 0)
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return (2);
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return (0);
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}
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static int check_unclosed_quote(char *c, t_node *node)
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{
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t_node *cpy;
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int count;
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int len;
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cpy = node;
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count = 0;
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while (cpy)
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{
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len = ft_strlen(cpy->val);
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if (len > 0 && cpy->val[0] == c[0])
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{
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if (len == 1 || cpy->val[len - 1] != c[0])
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count++;
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}
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cpy = cpy->next;
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}
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return (count % 2);
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}
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int unclosed(t_node *head)
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{
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if (check_unclosed("()", head) != 0)
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return (syntax_err_mess("()", check_unclosed("()", head)));
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if (check_unclosed_quote("\"", head) != 0)
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return (syntax_err_mess("\"\"", 1));
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if (check_unclosed_quote("'", head) != 0)
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return (syntax_err_mess("'", 1));
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return (0);
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}
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int is_redir(t_node *cpy)
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{
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if (cpy->pressision == RED_L
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|| cpy->pressision == RED_R
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|| cpy->pressision == HEREDOC
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|| cpy->pressision == D_RED_R)
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return (1);
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return (0);
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}
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int syntax_error(t_node *head)
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{
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t_node *cpy;
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cpy = head;
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if (is_aop_operator(cpy) && cpy->next == NULL)
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return (syntax_err_mess(cpy->val, 0));
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while (cpy)
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{
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if (unexpected_token(cpy))
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return (syntax_err_mess(cpy->val, 0));
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if (cpy->next == NULL && is_aop_operator(cpy))
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return (syntax_err_mess(cpy->val, 3));
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if (is_aop_operator(cpy) && is_aop_operator(cpy->next))
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return (syntax_err_mess(cpy->next->val, 0));
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if (is_aop_operator(cpy) && ft_strlen(cpy->val) > 2)
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return (syntax_err_mess(cpy->val, 0));
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cpy = cpy->next;
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}
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if (unclosed(head))
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return (1);
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return (0);
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}
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