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<?php |
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/** |
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* This file is part of the Version package. |
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* |
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* Copyright (c) Nikola Posa <[email protected]> |
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* |
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* For full copyright and license information, please refer to the LICENSE file, |
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* located at the package root folder. |
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*/ |
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namespace Version\Constraint\Parser; |
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use Version\Constraint\CompositeConstraint; |
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/** |
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* @author Nikola Posa <[email protected]> |
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*/ |
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abstract class AbstractMultiPartParser extends AbstractParser |
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{ |
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const OPERATOR_OR = '||'; |
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protected $constraintParts = []; |
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10 |
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protected function doParse() |
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{ |
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if (!$this->isMultiPartConstraint()) { |
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return $this->buildConstraintFromStringUnit($this->constraintString); |
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} |
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$this->splitConstraintParts(); |
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return $this->buildCompositeConstraint(); |
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} |
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protected function isMultiPartConstraint() |
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{ |
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return (false !== strpos($this->constraintString, ' ')); |
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} |
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protected function splitConstraintParts() |
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{ |
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$this->constraintParts = explode(' ' , $this->constraintString); |
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} |
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protected function buildCompositeConstraint() |
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{ |
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$compositeAndConstraints = $compositeOrConstraints = []; |
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foreach ($this->constraintParts as $constraintPart) { |
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if (!$this->isOperator($constraintPart)) { |
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$compositeAndConstraints[] = $this->buildConstraintFromStringUnit($constraintPart); |
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continue; |
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} |
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$constraintOperator = $constraintPart; |
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switch ($constraintOperator) { |
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case self::OPERATOR_OR : |
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$compositeOrConstraints[] = CompositeConstraint::fromAndConstraints($compositeAndConstraints); |
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$compositeAndConstraints = []; |
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break; |
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} |
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} |
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3 |
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if (!empty($compositeOrConstraints)) { |
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2 |
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if (empty($compositeAndConstraints)) { |
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//invalid OR constraint; no right side |
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1 |
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$this->error(); |
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} |
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1 |
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$compositeOrConstraints[] = CompositeConstraint::fromAndConstraints($compositeAndConstraints); |
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return CompositeConstraint::fromOrConstraints($compositeOrConstraints); |
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} |
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return CompositeConstraint::fromAndConstraints($compositeAndConstraints); |
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} |
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3 |
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protected function isOperator($constraintPart) |
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{ |
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return in_array($constraintPart, [ |
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self::OPERATOR_OR, |
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]); |
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} |
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} |
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nikolaposa /
version
