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<?php |
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/** |
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* @copyright (c) 2014-2017 brian ridley |
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* @author brian ridley <[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace ptlis\SemanticVersion\Parse\RangeParser; |
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use ptlis\SemanticVersion\Comparator\ComparatorInterface; |
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use ptlis\SemanticVersion\Parse\Token; |
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use ptlis\SemanticVersion\Parse\VersionParser; |
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use ptlis\SemanticVersion\VersionRange\VersionRangeInterface; |
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use ptlis\SemanticVersion\VersionRange\LogicalAnd; |
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use ptlis\SemanticVersion\VersionRange\ComparatorVersion; |
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use ptlis\SemanticVersion\Version\Version; |
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/** |
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* Parser for caret ranges. |
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* |
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* Behaviour of caret ranges is described @ https://getcomposer.org/doc/articles/versions.md#caret |
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*/ |
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final class CaretRangeParser implements RangeParserInterface |
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{ |
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/** @var VersionParser */ |
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private $versionParser; |
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/** @var ComparatorInterface */ |
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private $greaterOrEqualTo; |
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/** @var ComparatorInterface */ |
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private $lessThan; |
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/** |
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* Constructor. |
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* |
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* @param VersionParser $versionParser |
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* @param ComparatorInterface $greaterOrEqualTo |
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* @param ComparatorInterface $lessThan |
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*/ |
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public function __construct( |
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VersionParser $versionParser, |
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ComparatorInterface $greaterOrEqualTo, |
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ComparatorInterface $lessThan |
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) { |
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$this->versionParser = $versionParser; |
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$this->greaterOrEqualTo = $greaterOrEqualTo; |
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$this->lessThan = $lessThan; |
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} |
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/** |
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* Returns true if the provided tokens represent a caret range. |
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* |
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* @param Token[] $tokenList |
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* |
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* @return boolean |
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*/ |
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public function canParse(array $tokenList) |
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{ |
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return ( |
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count($tokenList) > 0 |
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&& Token::CARET_RANGE === $tokenList[0]->getType() |
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&& $this->versionParser->canParse(array_slice($tokenList, 1)) |
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); |
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} |
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/** |
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* Build a ComparatorVersion representing the caret range. |
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* |
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* @param Token[] $tokenList |
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* |
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* @return VersionRangeInterface |
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*/ |
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public function parse(array $tokenList) |
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{ |
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if (!$this->canParse($tokenList)) { |
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throw new \RuntimeException('Invalid caret range (^) version range'); |
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} |
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$lowerVersion = $this->versionParser->parse(array_slice($tokenList, 1)); |
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return new LogicalAnd( |
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new ComparatorVersion( |
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$this->greaterOrEqualTo, |
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$lowerVersion |
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), |
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new ComparatorVersion( |
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$this->lessThan, |
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new Version($lowerVersion->getMajor() + 1) |
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) |
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); |
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} |
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} |
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ptlis /
semantic-version
