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/>.

**/

​

​

/**

 * Class is used to validate and parse a trigger function.

 */

class C10FunctionParser extends CParser {

​

    const STATE_NEW = 0;

    const STATE_END = 1;

    const STATE_UNQUOTED = 2;

    const STATE_QUOTED = 3;

    const STATE_END_OF_PARAMS = 4;

​

    const PARAM_ARRAY = 0;

    const PARAM_UNQUOTED = 1;

    const PARAM_QUOTED = 2;

​

    private $function = '';

    private $parameters = '';

    private $params_raw = [];

​

    /**

     * Returns true if the char is allowed in the function name, false otherwise.

     *

     * @param string $c

     *

     * @return bool

     */

    protected function isFunctionChar($c) {

        return ($c >= 'a' && $c <= 'z');

    }

​

    /**

     * Parse a trigger function and parameters and put them into $this->params_raw array.

     *

     * @param string    $source

     * @param int       $pos

     */

    public function parse($source, $pos = 0) {

        $this->length = 0;

        $this->match = '';

        $this->function = '';

        $this->parameters = '';

        $this->params_raw = [];

​

        for ($p = $pos; isset($source[$p]) && $this->isFunctionChar($source[$p]); $p++) {

        }

​

        if ($p == $pos) {