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msd/vendor/composer/semver/README.md

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+composer/semver
+===============
+
+Semver (Semantic Versioning) library that offers utilities, version constraint parsing and validation.
+
+Originally written as part of [composer/composer](https://github.com/composer/composer),
+now extracted and made available as a stand-alone library.
+
+[![Continuous Integration](https://github.com/composer/semver/workflows/Continuous%20Integration/badge.svg?branch=main)](https://github.com/composer/semver/actions)
+
+
+Installation
+------------
+
+Install the latest version with:
+
+```bash
+$ composer require composer/semver
+```
+
+
+Requirements
+------------
+
+* PHP 5.3.2 is required but using the latest version of PHP is highly recommended.
+
+
+Version Comparison
+------------------
+
+For details on how versions are compared, refer to the [Versions](https://getcomposer.org/doc/articles/versions.md)
+article in the documentation section of the [getcomposer.org](https://getcomposer.org) website.
+
+
+Basic usage
+-----------
+
+### Comparator
+
+The [`Composer\Semver\Comparator`](https://github.com/composer/semver/blob/main/src/Comparator.php) class provides the following methods for comparing versions:
+
+* greaterThan($v1, $v2)
+* greaterThanOrEqualTo($v1, $v2)
+* lessThan($v1, $v2)
+* lessThanOrEqualTo($v1, $v2)
+* equalTo($v1, $v2)
+* notEqualTo($v1, $v2)
+
+Each function takes two version strings as arguments and returns a boolean. For example:
+
+```php
+use Composer\Semver\Comparator;
+
+Comparator::greaterThan('1.25.0', '1.24.0'); // 1.25.0 > 1.24.0
+```
+
+### Semver
+
+The [`Composer\Semver\Semver`](https://github.com/composer/semver/blob/main/src/Semver.php) class provides the following methods:
+
+* satisfies($version, $constraints)
+* satisfiedBy(array $versions, $constraint)
+* sort($versions)
+* rsort($versions)
+
+### Intervals
+
+The [`Composer\Semver\Intervals`](https://github.com/composer/semver/blob/main/src/Intervals.php) static class provides
+a few utilities to work with complex constraints or read version intervals from a constraint:
+
+```php
+use Composer\Semver\Intervals;
+
+// Checks whether $candidate is a subset of $constraint
+Intervals::isSubsetOf(ConstraintInterface $candidate, ConstraintInterface $constraint);
+
+// Checks whether $a and $b have any intersection, equivalent to $a->matches($b)
+Intervals::haveIntersections(ConstraintInterface $a, ConstraintInterface $b);
+
+// Optimizes a complex multi constraint by merging all intervals down to the smallest
+// possible multi constraint. The drawbacks are this is not very fast, and the resulting
+// multi constraint will have no human readable prettyConstraint configured on it
+Intervals::compactConstraint(ConstraintInterface $constraint);
+
+// Creates an array of numeric intervals and branch constraints representing a given constraint
+Intervals::get(ConstraintInterface $constraint);
+
+// Clears the memoization cache when you are done processing constraints
+Intervals::clear()
+```
+
+See the class docblocks for more details.
+
+
+License
+-------
+
+composer/semver is licensed under the MIT License, see the LICENSE file for details.