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