[Intl] Validate region preferred alpha code mapping
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@ -15,6 +15,7 @@ use Symfony\Component\Intl\Data\Bundle\Compiler\BundleCompilerInterface;
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use Symfony\Component\Intl\Data\Bundle\Reader\BundleEntryReaderInterface;
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use Symfony\Component\Intl\Data\Util\ArrayAccessibleResourceBundle;
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use Symfony\Component\Intl\Data\Util\LocaleScanner;
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use Symfony\Component\Intl\Exception\RuntimeException;
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/**
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* The rule for compiling the region bundle.
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@ -28,9 +29,10 @@ use Symfony\Component\Intl\Data\Util\LocaleScanner;
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class RegionDataGenerator extends AbstractDataGenerator
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{
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/**
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* Source: https://www.iso.org/obp/ui/#iso:pub:PUB500001:en.
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* Source: https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes.
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*/
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private static $preferredAlpha2ToAlpha3Mapping = [
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'CD' => 'COD',
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'DE' => 'DEU',
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'FR' => 'FRA',
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'MM' => 'MMR',
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@ -141,15 +143,11 @@ class RegionDataGenerator extends AbstractDataGenerator
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$this->regionCodes = array_unique($this->regionCodes);
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$alpha2ToAlpha3 = $this->generateAlpha3($metadataBundle);
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sort($this->regionCodes);
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$alpha3ToAlpha2 = [];
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foreach ($this->regionCodes as $alpha2Code) {
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$alpha3code = $alpha2ToAlpha3[$alpha2Code];
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$alpha3ToAlpha2[$alpha3code] = $alpha2Code;
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}
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$alpha2ToAlpha3 = $this->generateAlpha2ToAlpha3Mapping(array_flip($this->regionCodes), $metadataBundle);
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$alpha3ToAlpha2 = array_flip($alpha2ToAlpha3);
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asort($alpha3ToAlpha2);
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return [
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'Version' => $rootBundle['Version'],
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@ -178,31 +176,32 @@ class RegionDataGenerator extends AbstractDataGenerator
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return $regionNames;
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}
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protected function generateAlpha3(ArrayAccessibleResourceBundle $metadataBundle)
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private function generateAlpha2ToAlpha3Mapping(array $countries, ArrayAccessibleResourceBundle $metadataBundle): array
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{
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$alpha2Codes = array_flip($this->regionCodes);
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$aliases = iterator_to_array($metadataBundle['alias']['territory']);
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$alpha2ToAlpha3 = [];
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foreach ($metadataBundle['alias']['territory'] as $alias => $data) {
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if (3 !== \strlen($alias) || 'overlong' !== $data['reason'] || ctype_digit($alias)) {
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continue;
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}
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$alpha2Code = $data['replacement'];
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if (!isset($alpha2Codes[$alpha2Code])) {
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continue;
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}
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foreach ($aliases as $alias => $data) {
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$country = $data['replacement'];
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if (2 === \strlen($country) && 3 === \strlen($alias) && 'overlong' === $data['reason']) {
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if (isset(self::$preferredAlpha2ToAlpha3Mapping[$country])) {
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// Validate to prevent typos
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if (!isset($aliases[self::$preferredAlpha2ToAlpha3Mapping[$country]])) {
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throw new RuntimeException('The statically set three-letter mapping '.self::$preferredAlpha2ToAlpha3Mapping[$country].' for the country code '.$country.' seems to be invalid. Typo?');
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}
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if (!isset($alpha2ToAlpha3[$alpha2Code])) {
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$alpha2ToAlpha3[$alpha2Code] = $alias;
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continue;
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}
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$alpha3 = self::$preferredAlpha2ToAlpha3Mapping[$country];
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$alpha2 = $aliases[$alpha3]['replacement'];
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// Found a second alias for the same country
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if (isset(self::$preferredAlpha2ToAlpha3Mapping[$alpha2Code])) {
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$preferred = self::$preferredAlpha2ToAlpha3Mapping[$alpha2Code];
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// Only use the preferred mapping if it actually is in the mapping
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if ($alias === $preferred) {
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$alpha2ToAlpha3[$alpha2Code] = $preferred;
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if ($country !== $alpha2) {
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throw new RuntimeException('The statically set three-letter mapping '.$alpha3.' for the country code '.$country.' seems to be an alias for '.$alpha2.'. Wrong mapping?');
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}
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$alpha2ToAlpha3[$country] = $alpha3;
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} elseif (isset($alpha2ToAlpha3[$country])) {
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throw new RuntimeException('Multiple three-letter mappings exist for the country code '.$country.'. Please add one of them to the property $preferredAlpha2ToAlpha3Mapping.');
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} elseif (isset($countries[$country]) && self::isValidCountryCode($alias)) {
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$alpha2ToAlpha3[$country] = $alias;
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}
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}
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}
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