function VersionParser::parseConstraint
@phpstan-return non-empty-array<ConstraintInterface>
Parameters
string $constraint:
Return value
array
Throws
\UnexpectedValueException
1 call to VersionParser::parseConstraint()
- VersionParser::parseConstraints in vendor/
composer/ semver/ src/ VersionParser.php - Parses a constraint string into MultiConstraint and/or Constraint objects.
File
-
vendor/
composer/ semver/ src/ VersionParser.php, line 309
Class
- VersionParser
- Version parser.
Namespace
Composer\SemverCode
private function parseConstraint($constraint) {
// strip off aliasing
if (preg_match('{^([^,\\s]++) ++as ++([^,\\s]++)$}', $constraint, $match)) {
$constraint = $match[1];
}
// strip @stability flags, and keep it for later use
if (preg_match('{^([^,\\s]*?)@(' . self::$stabilitiesRegex . ')$}i', $constraint, $match)) {
$constraint = '' !== $match[1] ? $match[1] : '*';
if ($match[2] !== 'stable') {
$stabilityModifier = $match[2];
}
}
// get rid of #refs as those are used by composer only
if (preg_match('{^(dev-[^,\\s@]+?|[^,\\s@]+?\\.x-dev)#.+$}i', $constraint, $match)) {
$constraint = $match[1];
}
if (preg_match('{^(v)?[xX*](\\.[xX*])*$}i', $constraint, $match)) {
if (!empty($match[1]) || !empty($match[2])) {
return array(
new Constraint('>=', '0.0.0.0-dev'),
);
}
return array(
new MatchAllConstraint(),
);
}
$versionRegex = 'v?(\\d++)(?:\\.(\\d++))?(?:\\.(\\d++))?(?:\\.(\\d++))?(?:' . self::$modifierRegex . '|\\.([xX*][.-]?dev))(?:\\+[^\\s]+)?';
// Tilde Range
//
// Like wildcard constraints, unsuffixed tilde constraints say that they must be greater than the previous
// version, to ensure that unstable instances of the current version are allowed. However, if a stability
// suffix is added to the constraint, then a >= match on the current version is used instead.
if (preg_match('{^~>?' . $versionRegex . '$}i', $constraint, $matches)) {
if (strpos($constraint, '~>') === 0) {
throw new \UnexpectedValueException('Could not parse version constraint ' . $constraint . ': ' . 'Invalid operator "~>", you probably meant to use the "~" operator');
}
// Work out which position in the version we are operating at
if (isset($matches[4]) && '' !== $matches[4] && null !== $matches[4]) {
$position = 4;
}
elseif (isset($matches[3]) && '' !== $matches[3] && null !== $matches[3]) {
$position = 3;
}
elseif (isset($matches[2]) && '' !== $matches[2] && null !== $matches[2]) {
$position = 2;
}
else {
$position = 1;
}
// when matching 2.x-dev or 3.0.x-dev we have to shift the second or third number, despite no second/third number matching above
if (!empty($matches[8])) {
$position++;
}
// Calculate the stability suffix
$stabilitySuffix = '';
if (empty($matches[5]) && empty($matches[7]) && empty($matches[8])) {
$stabilitySuffix .= '-dev';
}
$lowVersion = $this->normalize(substr($constraint . $stabilitySuffix, 1));
$lowerBound = new Constraint('>=', $lowVersion);
// For upper bound, we increment the position of one more significance,
// but highPosition = 0 would be illegal
$highPosition = max(1, $position - 1);
$highVersion = $this->manipulateVersionString($matches, $highPosition, 1) . '-dev';
$upperBound = new Constraint('<', $highVersion);
return array(
$lowerBound,
$upperBound,
);
}
// Caret Range
//
// Allows changes that do not modify the left-most non-zero digit in the [major, minor, patch] tuple.
// In other words, this allows patch and minor updates for versions 1.0.0 and above, patch updates for
// versions 0.X >=0.1.0, and no updates for versions 0.0.X
if (preg_match('{^\\^' . $versionRegex . '($)}i', $constraint, $matches)) {
// Work out which position in the version we are operating at
if ('0' !== $matches[1] || '' === $matches[2] || null === $matches[2]) {
$position = 1;
}
elseif ('0' !== $matches[2] || '' === $matches[3] || null === $matches[3]) {
$position = 2;
}
else {
$position = 3;
}
// Calculate the stability suffix
$stabilitySuffix = '';
if (empty($matches[5]) && empty($matches[7]) && empty($matches[8])) {
$stabilitySuffix .= '-dev';
}
$lowVersion = $this->normalize(substr($constraint . $stabilitySuffix, 1));
$lowerBound = new Constraint('>=', $lowVersion);
// For upper bound, we increment the position of one more significance,
// but highPosition = 0 would be illegal
$highVersion = $this->manipulateVersionString($matches, $position, 1) . '-dev';
$upperBound = new Constraint('<', $highVersion);
return array(
$lowerBound,
$upperBound,
);
}
// X Range
//
// Any of X, x, or * may be used to "stand in" for one of the numeric values in the [major, minor, patch] tuple.
// A partial version range is treated as an X-Range, so the special character is in fact optional.
if (preg_match('{^v?(\\d++)(?:\\.(\\d++))?(?:\\.(\\d++))?(?:\\.[xX*])++$}', $constraint, $matches)) {
if (isset($matches[3]) && '' !== $matches[3] && null !== $matches[3]) {
$position = 3;
}
elseif (isset($matches[2]) && '' !== $matches[2] && null !== $matches[2]) {
$position = 2;
}
else {
$position = 1;
}
$lowVersion = $this->manipulateVersionString($matches, $position) . '-dev';
$highVersion = $this->manipulateVersionString($matches, $position, 1) . '-dev';
if ($lowVersion === '0.0.0.0-dev') {
return array(
new Constraint('<', $highVersion),
);
}
return array(
new Constraint('>=', $lowVersion),
new Constraint('<', $highVersion),
);
}
// Hyphen Range
//
// Specifies an inclusive set. If a partial version is provided as the first version in the inclusive range,
// then the missing pieces are replaced with zeroes. If a partial version is provided as the second version in
// the inclusive range, then all versions that start with the supplied parts of the tuple are accepted, but
// nothing that would be greater than the provided tuple parts.
if (preg_match('{^(?P<from>' . $versionRegex . ') +- +(?P<to>' . $versionRegex . ')($)}i', $constraint, $matches)) {
// Calculate the stability suffix
$lowStabilitySuffix = '';
if (empty($matches[6]) && empty($matches[8]) && empty($matches[9])) {
$lowStabilitySuffix = '-dev';
}
$lowVersion = $this->normalize($matches['from']);
$lowerBound = new Constraint('>=', $lowVersion . $lowStabilitySuffix);
$empty = function ($x) {
return $x === 0 || $x === '0' ? false : empty($x);
};
if (!$empty($matches[12]) && !$empty($matches[13]) || !empty($matches[15]) || !empty($matches[17]) || !empty($matches[18])) {
$highVersion = $this->normalize($matches['to']);
$upperBound = new Constraint('<=', $highVersion);
}
else {
$highMatch = array(
'',
$matches[11],
$matches[12],
$matches[13],
$matches[14],
);
// validate to version
$this->normalize($matches['to']);
$highVersion = $this->manipulateVersionString($highMatch, $empty($matches[12]) ? 1 : 2, 1) . '-dev';
$upperBound = new Constraint('<', $highVersion);
}
return array(
$lowerBound,
$upperBound,
);
}
// Basic Comparators
if (preg_match('{^(<>|!=|>=?|<=?|==?)?\\s*(.*)}', $constraint, $matches)) {
try {
try {
$version = $this->normalize($matches[2]);
} catch (\UnexpectedValueException $e) {
// recover from an invalid constraint like foobar-dev which should be dev-foobar
// except if the constraint uses a known operator, in which case it must be a parse error
if (substr($matches[2], -4) === '-dev' && preg_match('{^[0-9a-zA-Z-./]+$}', $matches[2])) {
$version = $this->normalize('dev-' . substr($matches[2], 0, -4));
}
else {
throw $e;
}
}
$op = $matches[1] ?: '=';
if ($op !== '==' && $op !== '=' && !empty($stabilityModifier) && self::parseStability($version) === 'stable') {
$version .= '-' . $stabilityModifier;
}
elseif ('<' === $op || '>=' === $op) {
if (!preg_match('/-' . self::$modifierRegex . '$/', strtolower($matches[2]))) {
if (strpos($matches[2], 'dev-') !== 0) {
$version .= '-dev';
}
}
}
return array(
new Constraint($matches[1] ?: '=', $version),
);
} catch (\Exception $e) {
}
}
$message = 'Could not parse version constraint ' . $constraint;
if (isset($e)) {
$message .= ': ' . $e->getMessage();
}
throw new \UnexpectedValueException($message);
}