Zabbix

<?php

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

​

/**

 *  A parser for function macros like "{{?<trigger expression>}.func()}".

 */

class CExpressionMacroFunctionParser extends CParser {

​

    /**

     * @var CExpressionMacroParser

     */

    protected $expression_macro_parser;

​

    /**

     * @var C10FunctionParser

     */

    protected $function_parser;

​

    /**

     * An options array.

     *

     * Supported options:

     *   'usermacros' => false    Enable user macros usage in expression.

     *   'lldmacros' => false     Enable low-level discovery macros usage in expression.

     *   'host_macro' => false    Allow {HOST.HOST} macro as host name part in the query.

     *   'host_macro_n' => false  Allow {HOST.HOST} and {HOST.HOST<1-9>} macros as host name part in the query.

     *   'empty_host' => false    Allow empty hostname in the query string.

     *

     * @var array

     */

    private $options = [

        'usermacros' => false,

        'lldmacros' => false,

        'host_macro' => false,

        'host_macro_n' => false,

        'empty_host' => false

    ];

​

    /**

     * Set up necessary parsers.

     *

     * @param array $options

     */

    public function __construct(array $options = []) {

        $this->options = $options + $this->options;

​

        $this->expression_macro_parser = new CExpressionMacroParser([

            'usermacros' => $this->options['usermacros'],

            'lldmacros' => $this->options['lldmacros'],

            'host_macro' => $this->options['host_macro'],