Файл: symfony-2.7/src/Symfony/Component/Intl/Intl.php
Строк: 403
<?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 SymfonyComponentIntl;
use SymfonyComponentIntlDataBundleReaderJsonBundleReader;
use SymfonyComponentIntlDataBundleReaderBufferedBundleReader;
use SymfonyComponentIntlDataBundleReaderBundleEntryReader;
use SymfonyComponentIntlDataBundleReaderBundleEntryReaderInterface;
use SymfonyComponentIntlDataProviderScriptDataProvider;
use SymfonyComponentIntlResourceBundleCurrencyBundle;
use SymfonyComponentIntlResourceBundleCurrencyBundleInterface;
use SymfonyComponentIntlResourceBundleLanguageBundle;
use SymfonyComponentIntlResourceBundleLanguageBundleInterface;
use SymfonyComponentIntlResourceBundleLocaleBundle;
use SymfonyComponentIntlResourceBundleLocaleBundleInterface;
use SymfonyComponentIntlResourceBundleRegionBundle;
use SymfonyComponentIntlResourceBundleRegionBundleInterface;
/**
* 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.
*/
const BUFFER_SIZE = 10;
/**
* The directory name of the currency data.
*/
const CURRENCY_DIR = 'currencies';
/**
* The directory name of the language data.
*/
const LANGUAGE_DIR = 'languages';
/**
* The directory name of the script data.
*/
const SCRIPT_DIR = 'scripts';
/**
* The directory name of the locale data.
*/
const LOCALE_DIR = 'locales';
/**
* The directory name of the region data.
*/
const REGION_DIR = 'regions';
/**
* @var ResourceBundleCurrencyBundleInterface
*/
private static $currencyBundle;
/**
* @var ResourceBundleLanguageBundleInterface
*/
private static $languageBundle;
/**
* @var ResourceBundleLocaleBundleInterface
*/
private static $localeBundle;
/**
* @var ResourceBundleRegionBundleInterface
*/
private static $regionBundle;
/**
* @var string|bool|null
*/
private static $icuVersion = false;
/**
* @var string
*/
private static $icuDataVersion = false;
/**
* @var BundleEntryReaderInterface
*/
private static $entryReader;
/**
* Returns whether the intl extension is installed.
*
* @return bool Returns true if the intl extension is installed, false otherwise.
*/
public static function isExtensionLoaded()
{
return class_exists('ResourceBundle');
}
/**
* Returns the bundle containing currency information.
*
* @return CurrencyBundleInterface The currency resource bundle.
*/
public static function getCurrencyBundle()
{
if (null === self::$currencyBundle) {
self::$currencyBundle = new CurrencyBundle(
self::getDataDirectory().'/'.Intl::CURRENCY_DIR,
self::getEntryReader(),
self::getLocaleBundle()
);
}
return self::$currencyBundle;
}
/**
* Returns the bundle containing language information.
*
* @return LanguageBundleInterface The language resource bundle.
*/
public static function getLanguageBundle()
{
if (null === self::$languageBundle) {
self::$languageBundle = new LanguageBundle(
self::getDataDirectory().'/'.Intl::LANGUAGE_DIR,
self::getEntryReader(),
self::getLocaleBundle(),
new ScriptDataProvider(
self::getDataDirectory().'/'.Intl::SCRIPT_DIR,
self::getEntryReader()
)
);
}
return self::$languageBundle;
}
/**
* Returns the bundle containing locale information.
*
* @return LocaleBundleInterface The locale resource bundle.
*/
public static function getLocaleBundle()
{
if (null === self::$localeBundle) {
self::$localeBundle = new LocaleBundle(
self::getDataDirectory().'/'.Intl::LOCALE_DIR,
self::getEntryReader()
);
}
return self::$localeBundle;
}
/**
* Returns the bundle containing region information.
*
* @return RegionBundleInterface The region resource bundle.
*/
public static function getRegionBundle()
{
if (null === self::$regionBundle) {
self::$regionBundle = new RegionBundle(
self::getDataDirectory().'/'.Intl::REGION_DIR,
self::getEntryReader(),
self::getLocaleBundle()
);
}
return self::$regionBundle;
}
/**
* Returns the version of the installed ICU library.
*
* @return null|string The ICU version or NULL if it could not be determined.
*/
public static function getIcuVersion()
{
if (false === self::$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::$icuVersion;
}
/**
* Returns the version of the installed ICU data.
*
* @return string The version of the installed ICU data.
*/
public static function getIcuDataVersion()
{
if (false === self::$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()
{
return '51.2';
}
/**
* Returns the absolute path to the data directory.
*
* @return string The absolute path to the data directory
*/
public static function getDataDirectory()
{
return realpath(__DIR__.'/Resources/data');
}
/**
* Returns the cached bundle entry reader.
*
* @return BundleEntryReaderInterface The bundle entry reader
*/
private static function getEntryReader()
{
if (null === self::$entryReader) {
self::$entryReader = new BundleEntryReader(new BufferedBundleReader(
new JsonBundleReader(),
self::BUFFER_SIZE
));
}
return self::$entryReader;
}
/**
* This class must not be instantiated.
*/
private function __construct()
{
}
}