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<?php declare(strict_types = 1);
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/*
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* This file is part of PharIo\Version.
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*
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* (c) Arne Blankerts <arne@blankerts.de>, Sebastian Heuer <sebastian@phpeople.de>, Sebastian Bergmann <sebastian@phpunit.de>
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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 PharIo\Version;
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class VersionConstraintParser {
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/**
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* @throws UnsupportedVersionConstraintException
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*/
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public function parse(string $value): VersionConstraint {
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if (\strpos($value, '|') !== false) {
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return $this->handleOrGroup($value);
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}
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if (!\preg_match('/^[\^~*]?v?[\d.*]+(?:-.*)?$/i', $value)) {
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throw new UnsupportedVersionConstraintException(
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\sprintf('Version constraint %s is not supported.', $value)
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);
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}
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switch ($value[0]) {
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case '~':
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return $this->handleTildeOperator($value);
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case '^':
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return $this->handleCaretOperator($value);
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}
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$constraint = new VersionConstraintValue($value);
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if ($constraint->getMajor()->isAny()) {
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return new AnyVersionConstraint();
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}
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if ($constraint->getMinor()->isAny()) {
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return new SpecificMajorVersionConstraint(
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$constraint->getVersionString(),
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$constraint->getMajor()->getValue() ?? 0
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);
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}
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if ($constraint->getPatch()->isAny()) {
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return new SpecificMajorAndMinorVersionConstraint(
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$constraint->getVersionString(),
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$constraint->getMajor()->getValue() ?? 0,
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$constraint->getMinor()->getValue() ?? 0
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);
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}
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return new ExactVersionConstraint($constraint->getVersionString());
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}
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private function handleOrGroup(string $value): OrVersionConstraintGroup {
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$constraints = [];
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foreach (\preg_split('{\s*\|\|?\s*}', \trim($value)) as $groupSegment) {
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$constraints[] = $this->parse(\trim($groupSegment));
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}
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return new OrVersionConstraintGroup($value, $constraints);
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}
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private function handleTildeOperator(string $value): AndVersionConstraintGroup {
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$constraintValue = new VersionConstraintValue(\substr($value, 1));
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if ($constraintValue->getPatch()->isAny()) {
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return $this->handleCaretOperator($value);
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}
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$constraints = [
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new GreaterThanOrEqualToVersionConstraint(
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$value,
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new Version(\substr($value, 1))
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),
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new SpecificMajorAndMinorVersionConstraint(
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$value,
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$constraintValue->getMajor()->getValue() ?? 0,
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$constraintValue->getMinor()->getValue() ?? 0
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)
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];
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return new AndVersionConstraintGroup($value, $constraints);
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}
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private function handleCaretOperator(string $value): AndVersionConstraintGroup {
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$constraintValue = new VersionConstraintValue(\substr($value, 1));
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$constraints = [
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new GreaterThanOrEqualToVersionConstraint($value, new Version(\substr($value, 1)))
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];
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if ($constraintValue->getMajor()->getValue() === 0) {
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$constraints[] = new SpecificMajorAndMinorVersionConstraint(
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$value,
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$constraintValue->getMajor()->getValue() ?? 0,
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$constraintValue->getMinor()->getValue() ?? 0
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);
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} else {
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$constraints[] = new SpecificMajorVersionConstraint(
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$value,
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$constraintValue->getMajor()->getValue() ?? 0
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);
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}
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return new AndVersionConstraintGroup(
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$value,
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$constraints
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);
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}
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}
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