<?php
/*
* This file is part of composer/semver.
*
* (c) Composer <https://github.com/composer>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace Composer\Semver;
use Composer\Semver\Constraint\Constraint;
class Comparator
{
/**
* Evaluates the expression: $version1 > $version2.
*
* @param string $version1
* @param string $version2
*
* @return bool
*/
public static function greaterThan($version1, $version2)
{
return self::compare($version1, '>', $version2);
}
/**
* Evaluates the expression: $version1 >= $version2.
*
* @param string $version1
* @param string $version2
*
* @return bool
*/
public static function greaterThanOrEqualTo($version1, $version2)
{
return self::compare($version1, '>=', $version2);
}
/**
* Evaluates the expression: $version1 < $version2.
*
* @param string $version1
* @param string $version2
*
* @return bool
*/
public static function lessThan($version1, $version2)
{
return self::compare($version1, '<', $version2);
}
/**
* Evaluates the expression: $version1 <= $version2.
*
* @param string $version1
* @param string $version2
*
* @return bool
*/
public static function lessThanOrEqualTo($version1, $version2)
{
return self::compare($version1, '<=', $version2);
}
/**
* Evaluates the expression: $version1 == $version2.
*
* @param string $version1
* @param string $version2
*
* @return bool
*/
public static function equalTo($version1, $version2)
{
return self::compare($version1, '==', $version2);
}
/**
* Evaluates the expression: $version1 != $version2.
*
* @param string $version1
* @param string $version2
*
* @return bool
*/
public static function notEqualTo($version1, $version2)
{
return self::compare($version1, '!=', $version2);
}
/**
* Evaluates the expression: $version1 $operator $version2.
*
* @param string $version1
* @param string $operator
* @param string $version2
*
* @return bool
*/
public static function compare($version1, $operator, $version2)
{
$constraint = new Constraint($operator, $version2);
return $constraint->matches(new Constraint('==', $version1));
}
}