Ubuntu

parseVersion($versionString); $version = new Version($components['major'], $components['minor'], $components['patch'], $components['pre_release'], $components['build']); } catch (RangeException $e) { throw new DomainException(sprintf('Version string "%1$s" is malformed', $versionString), 0, $e); } return $version; } /** * Parses a SemVer-compliant version string into components. * * @param string $version The version string. * * @return array{ * major: int, * minor: int, * patch: int, * pre_release: string[], * build: string[] * } * * @throws DomainException If version string is malformed. * @throws Exception If problem parsing. */ protected function parseVersion(string $version): array { $preReleaseSepPos = ($preReleaseSepPos = strpos($version, static::SEP_PRERELEASE)) !== \false ? $preReleaseSepPos : null; $buildSepPos = ($buildSepPos = strpos($version, static::SEP_BUILD)) !== \false ? $buildSepPos : null; if ($preReleaseSepPos === 0 || $buildSepPos === 0) { throw new DomainException(sprintf('Pre-release or build information in version string "%1$s" must be preceded by at least one version number', $version)); } $preRelease = ''; $build = ''; $numbers = $this->getSubstring($version, 0, $preReleaseSepPos ?? $buildSepPos); if ($preReleaseSepPos) { $preRelease = $this->getSubstring($version, $preReleaseSepPos + 1, $buildSepPos ? $buildSepPos - strlen($numbers) - 1 : $buildSepPos); } if ($buildSepPos) { $build = $this->getSubstring($version, $buildSepPos + 1, null); } $numbers = strlen($numbers) ? explode('.', $numbers, 3) : []; $preRelease = strlen($preRelease) ? explode('.', $preRelease) : []; $build = strlen($build) ? explode('.', $build) : []; $major = $numbers[0] ?? 0; $minor = $numbers[1] ?? 0; $patch = $numbers[2] ?? 0; if (!is_numeric($major) || !is_numeric($minor) || !is_numeric($patch)) { throw new DomainException(sprintf('Major, minor, and patch numbers in version string "%1$s" must be numeric', $version)); } return ['major' => (int) $major, 'minor' => (int) $minor, 'patch' => (int) $patch, 'pre_release' => $preRelease, 'build' => $build]; } /** * Retrieves a string from withing a string. * * @see substr() * * @param string $string The string to get a substring from. * @param int $start The index of the character from which to start the substring, inclusive. * @param int|null $length The length of the substring, or `null` to get the remaining characters. * * @return string The substring. * * @throws RuntimeException If problem retrieving. */ protected function getSubstring(string $string, int $start, ?int $length): string { $substring = is_null($length) ? substr($string, $start) : substr($string, $start, $length); if (!is_string($substring)) { throw new UnexpectedValueException(sprintf('Could not extract a substring of a string "%1$d" chars long, starting from "%2$d" for "%3$d" chars', $string, $start, $length ?? 'null')); } return $substring; } }