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<?php |
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declare(strict_types=1); |
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// 02.03.23 |
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namespace AlecRabbit\WCWidth\Kernel; |
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use AlecRabbit\WCWidth\Kernel\Contract\IUnicodeVersion; |
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use InvalidArgumentException; |
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use function in_array; |
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use const AlecRabbit\WCWidth\UNICODE_VERSIONS; |
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/** @internal */ |
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final class UnicodeVersion implements IUnicodeVersion |
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{ |
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private const LATEST = 'latest'; |
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private const VERSIONS = UNICODE_VERSIONS; |
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private static ?string $currentVersion = null; |
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/** |
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* @codeCoverageIgnore |
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*/ |
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private function __construct() |
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{ |
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// no instances |
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} |
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public static function set(string $version): void |
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{ |
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self::$currentVersion = self::doRefine($version); |
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} |
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private static function doRefine(?string $version): string |
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{ |
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if (self::LATEST === $version || null === $version) { |
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$version = self::latest(); |
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} |
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self::assertVersion($version); |
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return |
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$version; |
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} |
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public static function latest(): string |
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{ |
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return |
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self::VERSIONS[array_key_last(self::VERSIONS)]; |
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} |
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private static function assertVersion(string $version): void |
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{ |
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if (!in_array($version, self::VERSIONS, true)) { |
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throw new InvalidArgumentException( |
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sprintf( |
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'Unknown Unicode version: "%s".', |
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$version |
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) |
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); |
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} |
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} |
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public static function get(): ?string |
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{ |
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return self::$currentVersion; |
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} |
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public static function reset(): void |
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{ |
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self::$currentVersion = null; |
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} |
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public static function refine(?string $version): string |
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{ |
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if (self::$currentVersion) { |
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return self::$currentVersion; |
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} |
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return self::doRefine($version); |
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} |
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} |
alecrabbit /
php-wcwidth
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