File: syslog-parser-grammar.ym

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/*
 * Copyright (c) 2012 Balabit
 * Copyright (c) 2012 Balázs Scheidler
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; 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 top {
#include "syslog-parser-parser.h"

}


%code {

#include "syslog-parser.h"
#include "syslog-names.h"
#include "cfg-grammar.h"

}

%name-prefix "syslog_parser_"

/* this parameter is needed in order to instruct bison to use a complete
 * argument list for yylex/yyerror */

%lex-param {CfgLexer *lexer}
%parse-param {CfgLexer *lexer}
%parse-param {LogParser **instance}
%parse-param {gpointer arg}

/* INCLUDE_DECLS */

%token KW_SYSLOG_PARSER

%type	<ptr> parser_expr_syslog


%%

start
        : LL_CONTEXT_PARSER parser_expr_syslog                  { YYACCEPT; }
        ;


parser_expr_syslog
        : KW_SYSLOG_PARSER '('
          {
            last_parser = *instance = syslog_parser_new(configuration);
          }
          parser_syslog_opts
          ')'					{ $$ = last_parser; }
        ;


parser_syslog_opts
        : parser_syslog_opt parser_syslog_opts
        |
        ;

parser_syslog_opt
	: parser_opt
	| KW_FLAGS '(' parser_syslog_opt_flags ')'
	| { last_msg_format_options = &((SyslogParser *) last_parser)->parse_options; } msg_format_option
        ;

parser_syslog_opt_flags
        : string parser_syslog_opt_flags                { CHECK_ERROR(msg_format_options_process_flag(&((SyslogParser *) last_parser)->parse_options, $1), @1, "Unknown flag %s", $1); free($1); }
        | KW_CHECK_HOSTNAME parser_syslog_opt_flags     { msg_format_options_process_flag(&((SyslogParser *) last_parser)->parse_options, "check-hostname");  }
        |
	;

/* INCLUDE_RULES */

%%