/*
 * Copyright (c) 2002-2012 Balabit
 * Copyright (c) 1998-2012 Balázs Scheidler
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * As an additional exemption you are allowed to compile & link against the
 * OpenSSL libraries as published by the OpenSSL project. See the file
 * COPYING for details.
 *
 */

%code requires {

#include "parser/parser-expr-parser.h"
#include "cfg-tree.h"

}

%code {

#include "syslog-names.h"
#include "plugin.h"
#include "cfg-grammar-internal.h"

}

%define api.prefix {parser_expr_}
%lex-param {CfgLexer *lexer}
%parse-param {CfgLexer *lexer}
%parse-param {LogExprNode **result}
%parse-param {gpointer arg}

%type	<ptr> parser_expr
%type   <ptr> parser_expr_list

/* INCLUDE_DECLS */

%%

start
        : parser_expr_list                       { *result = $1; if (yychar != PARSER_EXPR_EMPTY) { cfg_lexer_unput_token(lexer, &yylval); } YYACCEPT; }
	;

parser_expr_list
        : parser_expr semicolons parser_expr_list    { $$ = log_expr_node_append_tail(log_expr_node_new_pipe($1, &@1), $3); }
        | log_fork semicolons parser_expr_list       { $$ = log_expr_node_append_tail($1,  $3); }
        |                                            { $$ = NULL; }
        ;


parser_expr
        : LL_IDENTIFIER
          {
            Plugin *p;
            gint context = LL_CONTEXT_PARSER;

            p = cfg_find_plugin(configuration, context, $1);
            CHECK_ERROR(p, @1, "%s plugin %s not found", cfg_lexer_lookup_context_name_by_type(context), $1);

            last_parser = (LogParser *) cfg_parse_plugin(configuration, p, &@1, NULL);
            free($1);
            if (!last_parser)
              {
                YYERROR;
              }
            $$ = last_parser;
          }

        ;

/* INCLUDE_RULES */

%%
