rc1: vendor/composer/semver/src/VersionParser.php comparison

comparison vendor/composer/semver/src/VersionParser.php @ 0:1e000243b222

vanilla 1.3.3 distro, I hope

author	Charlie Root
date	Thu, 04 Jan 2018 15:50:29 -0500
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equal deleted inserted replaced

--1:000000000000
+:1e000243b222
+<?php
+/*
+* This file is part of composer/semver.
+*
+* (c) Composer <https://github.com/composer>
+*
+* For the full copyright and license information, please view
+* the LICENSE file that was distributed with this source code.
+*/
+namespace Composer\Semver;
+use Composer\Semver\Constraint\ConstraintInterface;
+use Composer\Semver\Constraint\EmptyConstraint;
+use Composer\Semver\Constraint\MultiConstraint;
+use Composer\Semver\Constraint\Constraint;
+/**
+* Version parser.
+*
+* @author Jordi Boggiano <j.boggiano@seld.be>
+*/
+class VersionParser
+{
+/**
+* Regex to match pre-release data (sort of).
+*
+* Due to backwards compatibility:
+*   - Instead of enforcing hyphen, an underscore, dot or nothing at all are also accepted.
+*   - Only stabilities as recognized by Composer are allowed to precede a numerical identifier.
+*   - Numerical-only pre-release identifiers are not supported, see tests.
+*
+*                        |--------------|
+* [major].[minor].[patch] -[pre-release] +[build-metadata]
+*
+* @var string
+*/
+private static $modifierRegex = '[._-]?(?:(stable|beta|b|RC|alpha|a|patch|pl|p)((?:[.-]?\d+)*+)?)?([.-]?dev)?';
+/** @var array */
+private static $stabilities = array('stable', 'RC', 'beta', 'alpha', 'dev');
+/**
+* Returns the stability of a version.
+*
+* @param string $version
+*
+* @return string
+*/
+public static function parseStability($version)
+{
+$version = preg_replace('{#.+$}i', '', $version);
+if ('dev-' === substr($version, 0, 4) || '-dev' === substr($version, -4)) {
+return 'dev';
+}
+preg_match('{' . self::$modifierRegex . '(?:\+.*)?$}i', strtolower($version), $match);
+if (!empty($match[3])) {
+return 'dev';
+}
+if (!empty($match[1])) {
+if ('beta' === $match[1] || 'b' === $match[1]) {
+return 'beta';
+}
+if ('alpha' === $match[1] || 'a' === $match[1]) {
+return 'alpha';
+}
+if ('rc' === $match[1]) {
+return 'RC';
+}
+}
+return 'stable';
+}
+/**
+* @param string $stability
+*
+* @return string
+*/
+public static function normalizeStability($stability)
+{
+$stability = strtolower($stability);
+return $stability === 'rc' ? 'RC' : $stability;
+}
+/**
+* Normalizes a version string to be able to perform comparisons on it.
+*
+* @param string $version
+* @param string $fullVersion optional complete version string to give more context
+*
+* @throws \UnexpectedValueException
+*
+* @return string
+*/
+public function normalize($version, $fullVersion = null)
+{
+$version = trim($version);
+if (null === $fullVersion) {
+$fullVersion = $version;
+}
+// strip off aliasing
+if (preg_match('{^([^,\s]++) ++as ++([^,\s]++)$}', $version, $match)) {
+$version = $match[1];
+}
+// match master-like branches
+if (preg_match('{^(?:dev-)?(?:master|trunk|default)$}i', $version)) {
+return '9999999-dev';
+}
+// if requirement is branch-like, use full name
+if ('dev-' === strtolower(substr($version, 0, 4))) {
+return 'dev-' . substr($version, 4);
+}
+// strip off build metadata
+if (preg_match('{^([^,\s+]++)\+[^\s]++$}', $version, $match)) {
+$version = $match[1];
+}
+// match classical versioning
+if (preg_match('{^v?(\d{1,5})(\.\d++)?(\.\d++)?(\.\d++)?' . self::$modifierRegex . '$}i', $version, $matches)) {
+$version = $matches[1]
+. (!empty($matches[2]) ? $matches[2] : '.0')
+. (!empty($matches[3]) ? $matches[3] : '.0')
+. (!empty($matches[4]) ? $matches[4] : '.0');
+$index = 5;
+// match date(time) based versioning
+} elseif (preg_match('{^v?(\d{4}(?:[.:-]?\d{2}){1,6}(?:[.:-]?\d{1,3})?)' . self::$modifierRegex . '$}i', $version, $matches)) {
+$version = preg_replace('{\D}', '.', $matches[1]);
+$index = 2;
+}
+// add version modifiers if a version was matched
+if (isset($index)) {
+if (!empty($matches[$index])) {
+if ('stable' === $matches[$index]) {
+return $version;
+}
+$version .= '-' . $this->expandStability($matches[$index]) . (!empty($matches[$index + 1]) ? ltrim($matches[$index + 1], '.-') : '');
+}
+if (!empty($matches[$index + 2])) {
+$version .= '-dev';
+}
+return $version;
+}
+// match dev branches
+if (preg_match('{(.*?)[.-]?dev$}i', $version, $match)) {
+try {
+return $this->normalizeBranch($match[1]);
+} catch (\Exception $e) {
+}
+}
+$extraMessage = '';
+if (preg_match('{ +as +' . preg_quote($version) . '$}', $fullVersion)) {
+$extraMessage = ' in "' . $fullVersion . '", the alias must be an exact version';
+} elseif (preg_match('{^' . preg_quote($version) . ' +as +}', $fullVersion)) {
+$extraMessage = ' in "' . $fullVersion . '", the alias source must be an exact version, if it is a branch name you should prefix it with dev-';
+}
+throw new \UnexpectedValueException('Invalid version string "' . $version . '"' . $extraMessage);
+}
+/**
+* Extract numeric prefix from alias, if it is in numeric format, suitable for version comparison.
+*
+* @param string $branch Branch name (e.g. 2.1.x-dev)
+*
+* @return string|false Numeric prefix if present (e.g. 2.1.) or false
+*/
+public function parseNumericAliasPrefix($branch)
+{
+if (preg_match('{^(?P<version>(\d++\\.)*\d++)(?:\.x)?-dev$}i', $branch, $matches)) {
+return $matches['version'] . '.';
+}
+return false;
+}
+/**
+* Normalizes a branch name to be able to perform comparisons on it.
+*
+* @param string $name
+*
+* @return string
+*/
+public function normalizeBranch($name)
+{
+$name = trim($name);
+if (in_array($name, array('master', 'trunk', 'default'))) {
+return $this->normalize($name);
+}
+if (preg_match('{^v?(\d++)(\.(?:\d++|[xX*]))?(\.(?:\d++|[xX*]))?(\.(?:\d++|[xX*]))?$}i', $name, $matches)) {
+$version = '';
+for ($i = 1; $i < 5; ++$i) {
+$version .= isset($matches[$i]) ? str_replace(array('*', 'X'), 'x', $matches[$i]) : '.x';
+}
+return str_replace('x', '9999999', $version) . '-dev';
+}
+return 'dev-' . $name;
+}
+/**
+* Parses a constraint string into MultiConstraint and/or Constraint objects.
+*
+* @param string $constraints
+*
+* @return ConstraintInterface
+*/
+public function parseConstraints($constraints)
+{
+$prettyConstraint = $constraints;
+if (preg_match('{^([^,\s]*?)@(' . implode('|', self::$stabilities) . ')$}i', $constraints, $match)) {
+$constraints = empty($match[1]) ? '*' : $match[1];
+}
+if (preg_match('{^(dev-[^,\s@]+?|[^,\s@]+?\.x-dev)#.+$}i', $constraints, $match)) {
+$constraints = $match[1];
+}
+$orConstraints = preg_split('{\s*\|\|?\s*}', trim($constraints));
+$orGroups = array();
+foreach ($orConstraints as $constraints) {
+$andConstraints = preg_split('{(?<!^|as|[=>< ,]) *(?<!-)[, ](?!-) *(?!,|as|$)}', $constraints);
+if (count($andConstraints) > 1) {
+$constraintObjects = array();
+foreach ($andConstraints as $constraint) {
+foreach ($this->parseConstraint($constraint) as $parsedConstraint) {
+$constraintObjects[] = $parsedConstraint;
+}
+}
+} else {
+$constraintObjects = $this->parseConstraint($andConstraints[0]);
+}
+if (1 === count($constraintObjects)) {
+$constraint = $constraintObjects[0];
+} else {
+$constraint = new MultiConstraint($constraintObjects);
+}
+$orGroups[] = $constraint;
+}
+if (1 === count($orGroups)) {
+$constraint = $orGroups[0];
+} elseif (2 === count($orGroups)
+// parse the two OR groups and if they are contiguous we collapse
+// them into one constraint
+&& $orGroups[0] instanceof MultiConstraint
+&& $orGroups[1] instanceof MultiConstraint
+&& 2 === count($orGroups[0]->getConstraints())
+&& 2 === count($orGroups[1]->getConstraints())
+&& ($a = (string) $orGroups[0])
+&& substr($a, 0, 3) === '[>=' && (false !== ($posA = strpos($a, '<', 4)))
+&& ($b = (string) $orGroups[1])
+&& substr($b, 0, 3) === '[>=' && (false !== ($posB = strpos($b, '<', 4)))
+&& substr($a, $posA + 2, -1) === substr($b, 4, $posB - 5)
+) {
+$constraint = new MultiConstraint(array(
+new Constraint('>=', substr($a, 4, $posA - 5)),
+new Constraint('<', substr($b, $posB + 2, -1)),
+));
+} else {
+$constraint = new MultiConstraint($orGroups, false);
+}
+$constraint->setPrettyString($prettyConstraint);
+return $constraint;
+}
+/**
+* @param string $constraint
+*
+* @throws \UnexpectedValueException
+*
+* @return array
+*/
+private function parseConstraint($constraint)
+{
+if (preg_match('{^([^,\s]+?)@(' . implode('|', self::$stabilities) . ')$}i', $constraint, $match)) {
+$constraint = $match[1];
+if ($match[2] !== 'stable') {
+$stabilityModifier = $match[2];
+}
+}
+if (preg_match('{^v?[xX*](\.[xX*])*$}i', $constraint)) {
+return array(new EmptyConstraint());
+}
+$versionRegex = 'v?(\d++)(?:\.(\d++))?(?:\.(\d++))?(?:\.(\d++))?' . self::$modifierRegex . '(?:\+[^\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, $matches)) {
+if (substr($constraint, 0, 2) === '~>') {
+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]) && '' !== $matches[4]) {
+$position = 4;
+} elseif (isset($matches[3]) && '' !== $matches[3]) {
+$position = 3;
+} elseif (isset($matches[2]) && '' !== $matches[2]) {
+$position = 2;
+} else {
+$position = 1;
+}
+// Calculate the stability suffix
+$stabilitySuffix = '';
+if (!empty($matches[5])) {
+$stabilitySuffix .= '-' . $this->expandStability($matches[5]) . (!empty($matches[6]) ? $matches[6] : '');
+}
+if (!empty($matches[7])) {
+$stabilitySuffix .= '-dev';
+}
+if (!$stabilitySuffix) {
+$stabilitySuffix = '-dev';
+}
+$lowVersion = $this->manipulateVersionString($matches, $position, 0) . $stabilitySuffix;
+$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] || '' === $matches[2]) {
+$position = 1;
+} elseif ('0' !== $matches[2] || '' === $matches[3]) {
+$position = 2;
+} else {
+$position = 3;
+}
+// Calculate the stability suffix
+$stabilitySuffix = '';
+if (empty($matches[5]) && empty($matches[7])) {
+$stabilitySuffix .= '-dev';
+}
+$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]) && '' !== $matches[3]) {
+$position = 3;
+} elseif (isset($matches[2]) && '' !== $matches[2]) {
+$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])) {
+$lowStabilitySuffix = '-dev';
+}
+$lowVersion = $this->normalize($matches['from']);
+$lowerBound = new Constraint('>=', $lowVersion . $lowStabilitySuffix);
+$empty = function ($x) {
+return ($x === 0 || $x === '0') ? false : empty($x);
+};
+if ((!$empty($matches[11]) && !$empty($matches[12])) || !empty($matches[14]) || !empty($matches[16])) {
+$highVersion = $this->normalize($matches['to']);
+$upperBound = new Constraint('<=', $highVersion);
+} else {
+$highMatch = array('', $matches[10], $matches[11], $matches[12], $matches[13]);
+$highVersion = $this->manipulateVersionString($highMatch, $empty($matches[11]) ? 1 : 2, 1) . '-dev';
+$upperBound = new Constraint('<', $highVersion);
+}
+return array(
+$lowerBound,
+$upperBound,
+);
+}
+// Basic Comparators
+if (preg_match('{^(<>|!=|>=?|<=?|==?)?\s*(.*)}', $constraint, $matches)) {
+try {
+$version = $this->normalize($matches[2]);
+if (!empty($stabilityModifier) && $this->parseStability($version) === 'stable') {
+$version .= '-' . $stabilityModifier;
+} elseif ('<' === $matches[1] || '>=' === $matches[1]) {
+if (!preg_match('/-' . self::$modifierRegex . '$/', strtolower($matches[2]))) {
+if (substr($matches[2], 0, 4) !== 'dev-') {
+$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);
+}
+/**
+* Increment, decrement, or simply pad a version number.
+*
+* Support function for {@link parseConstraint()}
+*
+* @param array $matches Array with version parts in array indexes 1,2,3,4
+* @param int $position 1,2,3,4 - which segment of the version to increment/decrement
+* @param int $increment
+* @param string $pad The string to pad version parts after $position
+*
+* @return string The new version
+*/
+private function manipulateVersionString($matches, $position, $increment = 0, $pad = '0')
+{
+for ($i = 4; $i > 0; --$i) {
+if ($i > $position) {
+$matches[$i] = $pad;
+} elseif ($i === $position && $increment) {
+$matches[$i] += $increment;
+// If $matches[$i] was 0, carry the decrement
+if ($matches[$i] < 0) {
+$matches[$i] = $pad;
+--$position;
+// Return null on a carry overflow
+if ($i === 1) {
+return;
+}
+}
+}
+}
+return $matches[1] . '.' . $matches[2] . '.' . $matches[3] . '.' . $matches[4];
+}
+/**
+* Expand shorthand stability string to long version.
+*
+* @param string $stability
+*
+* @return string
+*/
+private function expandStability($stability)
+{
+$stability = strtolower($stability);
+switch ($stability) {
+case 'a':
+return 'alpha';
+case 'b':
+return 'beta';
+case 'p':
+case 'pl':
+return 'patch';
+case 'rc':
+return 'RC';
+default:
+return $stability;
+}
+}
+}

Mercurial > hg > rc1

comparison vendor/composer/semver/src/VersionParser.php @ 0:1e000243b222