vendor/commerceguys/intl/scripts/generate_locale_data.php


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<?php

/**
 * Generates the $parents array for the Locale class.
 */

require __DIR__ . '/generate_base.php';

$parentLocales = __DIR__ . '/assets/cldr/cldr-json/cldr-core/supplemental/parentLocales.json';
$parentLocales = json_decode(file_get_contents($parentLocales), true);
$parentLocales = $parentLocales['supplemental']['parentLocales']['parentLocale'];
foreach ($parentLocales as $locale => $parentLocale) {
    $localeParts = explode('-', $locale);
    if (in_array($localeParts[0], $ignoredLocales)) {
        unset($parentLocales[$locale]);
    }
}

$parentLocales = var_export($parentLocales, true) . ';';
$export = "<?php\n\n";
$export .= '$parents = ' . str_replace(['array (', ')'], ['[', ']'], $parentLocales);
$export .= "\n";
file_put_contents(__DIR__ . '/locale_data.php', $export);