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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\Data\Generator;
use Symfony\Component\Filesystem\Filesystem;
use Symfony\Component\Intl\Data\Bundle\Compiler\BundleCompilerInterface;
use Symfony\Component\Intl\Data\Bundle\Reader\BundleEntryReaderInterface;
use Symfony\Component\Intl\Data\Util\LocaleScanner;
use Symfony\Component\Intl\Exception\MissingResourceException;
/**
* The rule for compiling the locale bundle.
*
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Roland Franssen <franssen.roland@gmail.com>
*
* @internal
*/
class LocaleDataGenerator extends AbstractDataGenerator
{
use FallbackTrait;
private $locales = [];
private $localeAliases = [];
private $localeParents = [];
/**
* {@inheritdoc}
*/
protected function scanLocales(LocaleScanner $scanner, $sourceDir)
{
$this->locales = $scanner->scanLocales($sourceDir.'/locales');
$this->localeAliases = $scanner->scanAliases($sourceDir.'/locales');
$this->localeParents = $scanner->scanParents($sourceDir.'/locales');
return $this->locales;
}
/**
* {@inheritdoc}
*/
protected function compileTemporaryBundles(BundleCompilerInterface $compiler, $sourceDir, $tempDir)
{
$filesystem = new Filesystem();
$filesystem->mkdir([
$tempDir.'/lang',
$tempDir.'/region',
]);
$compiler->compile($sourceDir.'/lang', $tempDir.'/lang');
$compiler->compile($sourceDir.'/region', $tempDir.'/region');
}
/**
* {@inheritdoc}
*/
protected function preGenerate()
{
// Write parents locale file for the Translation component
\file_put_contents(
__DIR__.'/../../../Translation/Resources/data/parents.json',
\json_encode($this->localeParents, \JSON_PRETTY_PRINT).\PHP_EOL
);
}
/**
* {@inheritdoc}
*/
protected function generateDataForLocale(BundleEntryReaderInterface $reader, $tempDir, $displayLocale)
{
// Don't generate aliases, as they are resolved during runtime
// Unless an alias is needed as fallback for de-duplication purposes
if (isset($this->localeAliases[$displayLocale]) && !$this->generatingFallback) {
return;
}
// Generate locale names for all locales that have translations in
// at least the language or the region bundle
$displayFormat = $reader->readEntry($tempDir.'/lang', $displayLocale, ['localeDisplayPattern']);
$pattern = $displayFormat['pattern'] ?? '{0} ({1})';
$separator = $displayFormat['separator'] ?? '{0}, {1}';
$localeNames = [];
foreach ($this->locales as $locale) {
// Ensure a normalized list of pure locales
if (\Locale::getAllVariants($locale)) {
continue;
}
try {
// Generate a locale name in the language of each display locale
// Each locale name has the form: "Language (Script, Region, Variant1, ...)
// Script, Region and Variants are optional. If none of them is
// available, the braces are not printed.
$localeNames[$locale] = $this->generateLocaleName($reader, $tempDir, $locale, $displayLocale, $pattern, $separator);
} catch (MissingResourceException $e) {
// Silently ignore incomplete locale names
// In this case one should configure at least one fallback locale that is complete (e.g. English) during
// runtime. Alternatively a translation for the missing resource can be proposed upstream.
}
}
$data = [
'Names' => $localeNames,
];
// Don't de-duplicate a fallback locale
// Ensures the display locale can be de-duplicated on itself
if ($this->generatingFallback) {
return $data;
}
// Process again to de-duplicate locale and its fallback locales
// Only keep the differences
$fallbackData = $this->generateFallbackData($reader, $tempDir, $displayLocale);
if (isset($fallbackData['Names'])) {
$data['Names'] = array_diff($data['Names'], $fallbackData['Names']);
}
if (!$data['Names']) {
return;
}
return $data;
}
/**
* {@inheritdoc}
*/
protected function generateDataForRoot(BundleEntryReaderInterface $reader, $tempDir)
{
}
/**
* {@inheritdoc}
*/
protected function generateDataForMeta(BundleEntryReaderInterface $reader, $tempDir)
{
return [
'Locales' => $this->locales,
'Aliases' => $this->localeAliases,
];
}
/**
* @return string
*/
private function generateLocaleName(BundleEntryReaderInterface $reader, $tempDir, $locale, $displayLocale, $pattern, $separator)
{
// Apply generic notation using square brackets as described per http://cldr.unicode.org/translation/language-names
$name = str_replace(['(', ')'], ['[', ']'], $reader->readEntry($tempDir.'/lang', $displayLocale, ['Languages', \Locale::getPrimaryLanguage($locale)]));
$extras = [];
// Discover the name of the script part of the locale
// i.e. in zh_Hans_MO, "Hans" is the script
if ($script = \Locale::getScript($locale)) {
$extras[] = str_replace(['(', ')'], ['[', ']'], $reader->readEntry($tempDir.'/lang', $displayLocale, ['Scripts', $script]));
}
// Discover the name of the region part of the locale
// i.e. in de_AT, "AT" is the region
if ($region = \Locale::getRegion($locale)) {
if (!RegionDataGenerator::isValidCountryCode($region)) {
throw new MissingResourceException('Skipping "'.$locale.'" due an invalid country.');
}
$extras[] = str_replace(['(', ')'], ['[', ']'], $reader->readEntry($tempDir.'/region', $displayLocale, ['Countries', $region]));
}
if ($extras) {
$extra = array_shift($extras);
foreach ($extras as $part) {
$extra = str_replace(['{0}', '{1}'], [$extra, $part], $separator);
}
$name = str_replace(['{0}', '{1}'], [$name, $extra], $pattern);
}
return $name;
}
}
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