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<?php
/*
** Zabbix
** Copyright (C) 2001-2019 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
/**
* A parser for a list of time periods separated by a semicolon.
*/
class CTimePeriodsParser extends CParser {
private $time_period_parser;
private $periods = [];
private $options = ['usermacros' => false];
public function __construct($options = []) {
if (array_key_exists('usermacros', $options)) {
$this->options['usermacros'] = $options['usermacros'];
}
$this->time_period_parser = new CTimePeriodParser(['usermacros' => $this->options['usermacros']]);
}
/**
* Parse the given periods separated by a semicolon.
*
* @param string $source Source string that needs to be parsed.
* @param int $pos Position offset.
*/
public function parse($source, $pos = 0) {
$this->length = 0;
$this->match = '';
$this->periods = [];
$periods = [];
$p = $pos;
$offset = 0;
while (isset($source[$p + $offset])) {
if ($this->time_period_parser->parse($source, $p + $offset) == self::PARSE_FAIL) {
break;
}
$p += $offset + $this->time_period_parser->getLength();
$periods[] = $this->time_period_parser->getMatch();
if (isset($source[$p]) && $source[$p] !== ';') {
break;
}
$offset = 1;
}
if ($p == $pos || isset($source[$p])) {
return self::PARSE_FAIL;
}
$this->length = $p - $pos;
$this->match = substr($source, $pos, $this->length);
$this->periods = $periods;
return self::PARSE_SUCCESS;
}
/**
* Retrieve the time periods.
*
* @return array
*/
public function getPeriods() {
return $this->periods;
}
}
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