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<?php
/**
* @copyright Copyright (c) 2016 Lukas Reschke <lukas@statuscode.ch>
*
* @license GNU AGPL version 3 or any later version
*
* 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, either version 3 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 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 <http://www.gnu.org/licenses/>.
*
*/
namespace OC\App\AppStore\Version;
/**
* Class VersionParser parses the versions as sent by the Nextcloud app store
*
* @package OC\App\AppStore
*/
class VersionParser {
/**
* Returns the version for a version string
*
* @param string $versionSpec
* @return Version
* @throws \Exception If the version cannot be parsed
*/
public function getVersion($versionSpec) {
// * indicates that the version is compatible with all versions
if($versionSpec === '*') {
return new Version('', '');
}
// Count the amount of =, if it is one then it's either maximum or minimum
// version. If it is two then it is maximum and minimum.
if (preg_match_all('/(?:>|<)(?:=|)[0-9.]+/', $versionSpec, $matches)) {
switch(count($matches[0])) {
case 1:
if(substr($matches[0][0], 0, 1) === '>') {
return new Version(substr($matches[0][0], 2), '');
} else {
return new Version('', substr($matches[0][0], 2));
}
break;
case 2:
return new Version(substr($matches[0][0], 2), substr($matches[0][1], 2));
break;
default:
throw new \Exception('Version cannot be parsed');
}
}
throw new \Exception('Version cannot be parsed');
}
}
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