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 absolute time in "YYYY[-MM[-DD]][ hh[:mm[:ss]]]" format.

 */

class CAbsoluteTimeParser extends CParser {

​

    /**

     * Full date in "YYYY-MM-DD hh:mm:ss" format.

     *

     * @var string $date

     */

    private $date;

​

    /**

     * @var array $tokens

     */

    private $tokens;

​

    /**

     * Parse the given period.

     *

     * @param string $source  Source string that needs to be parsed.

     * @param int    $pos     Position offset.

     */

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

        $this->tokens = [];

        $this->length = 0;

        $this->match = '';

        $this->date = '';

​

        $p = $pos;

​

        if (!$this->parseAbsoluteTime($source, $p)) {

            return self::PARSE_FAIL;

        }

​

        $this->length = $p - $pos;

        $this->match = substr($source, $pos, $this->length);

​

        return isset($source[$p]) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS;

    }

​

    /**

     * Parse absolute time.

     *

     * @param string    $source

     * @param int       $pos

     *