72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_parse.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: ariard <ariard@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/02/09 14:30:22 by ariard #+# #+# */
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/* Updated: 2017/02/20 18:16:44 by ariard ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "parser.h"
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static void insert_linebreak(t_list **lst)
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{
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t_token *token;
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token = (*lst)->content;
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token->type = LINEBREAK;
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}
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static int end_instruction(t_sym sym)
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{
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if (sym == CMD_SUPERIOR || sym == PIPE_SEMI_SEQUENCE)
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return (1);
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return (0);
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}
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int ft_parse2(t_btree **ast, t_list **token)
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{
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t_sym *new_sym;
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t_sym *stack;
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t_parstate state;
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state = UNDEFINED;
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new_sym = ft_memalloc(sizeof(t_sym));
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stack = ft_memalloc(sizeof(t_sym) * 1000);
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push_stack(stack, LINEBREAK);
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while (*token)
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{
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produce_sym(*stack, new_sym, token);
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DG("new sym %s", read_state(*new_sym));
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if (eval_sym(*stack, *new_sym))
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state = ERROR;
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else
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{
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aggregate_sym(&stack, new_sym, &state);
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push_stack(++stack, *new_sym);
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}
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ft_putstr("\n");
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ft_read_stack(stack);
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if (*stack == PROGRAM)
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state = SUCCESS;
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if (state == ERROR)
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return (error_syntax(token));
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if (state == SUCCESS)
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ft_putstr("success");
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build_tree(ast, token);
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btree_print(STDBUG, *ast, &ft_putast);
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if ((end_instruction(*stack) && !(*token)->next) || *stack == PROGRAM)
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insert_linebreak(token);
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else
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ft_lst_delif(token, (*token)->content, &ft_addrcmp, &token_free);
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}
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if (state == UNDEFINED)
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{
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ft_putstr("syntax error: unexpected end of file\n");
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return (0);
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}
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return (0);
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}
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