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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Intl;
/**
* Gives access to internationalization data.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
final class Intl
{
/**
* The number of resource bundles to buffer. Loading the same resource
* bundle for n locales takes up n spots in the buffer.
*/
public const BUFFER_SIZE = 10;
/**
* The directory name of the currency data.
*/
public const CURRENCY_DIR = 'currencies';
/**
* The directory name of the language data.
*/
public const LANGUAGE_DIR = 'languages';
/**
* The directory name of the script data.
*/
public const SCRIPT_DIR = 'scripts';
/**
* The directory name of the locale data.
*/
public const LOCALE_DIR = 'locales';
/**
* The directory name of the region data.
*/
public const REGION_DIR = 'regions';
/**
* The directory name of the zone data.
*/
public const TIMEZONE_DIR = 'timezones';
/**
* @var string|bool|null
*/
private static $icuVersion = false;
/**
* @var string
*/
private static $icuDataVersion = false;
/**
* Returns whether the intl extension is installed.
*
* @return bool Returns true if the intl extension is installed, false otherwise
*/
public static function isExtensionLoaded(): bool
{
return class_exists(\ResourceBundle::class);
}
/**
* Returns the version of the installed ICU library.
*
* @return string|null The ICU version or NULL if it could not be determined
*/
public static function getIcuVersion(): ?string
{
if (false === self::$icuVersion) {
if (!self::isExtensionLoaded()) {
self::$icuVersion = self::getIcuStubVersion();
} elseif (\defined('INTL_ICU_VERSION')) {
self::$icuVersion = \INTL_ICU_VERSION;
} else {
try {
$reflector = new \ReflectionExtension('intl');
ob_start();
$reflector->info();
$output = strip_tags(ob_get_clean());
preg_match('/^ICU version (?:=>)?(.*)$/m', $output, $matches);
self::$icuVersion = trim($matches[1]);
} catch (\ReflectionException $e) {
self::$icuVersion = null;
}
}
}
return self::$icuVersion;
}
/**
* Returns the version of the installed ICU data.
*
* @return string The version of the installed ICU data
*/
public static function getIcuDataVersion(): string
{
if (false === self::$icuDataVersion) {
self::$icuDataVersion = trim(file_get_contents(self::getDataDirectory().'/version.txt'));
}
return self::$icuDataVersion;
}
/**
* Returns the ICU version that the stub classes mimic.
*
* @return string The ICU version of the stub classes
*/
public static function getIcuStubVersion(): string
{
return '69.1';
}
/**
* Returns the absolute path to the data directory.
*
* @return string The absolute path to the data directory
*/
public static function getDataDirectory(): string
{
return __DIR__.'/Resources/data';
}
/**
* This class must not be instantiated.
*/
private function __construct()
{
}
}
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