130 lines
4.7 KiB
PHP
130 lines
4.7 KiB
PHP
<?php
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/**
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* Generates the json files stored in resources/language.
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*
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* CLDR lists about 515 languages, many of them dead (like Latin or Old English).
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* In order to decrease the list to a reasonable size, only the languages
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* for which CLDR itself has translations are listed.
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*/
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set_time_limit(0);
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// Downloaded from http://unicode.org/Public/cldr/26/json-full.zip
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$enLanguages = '../json-full/main/en/languages.json';
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if (!file_exists($enLanguages)) {
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die("The $enLanguages file was not found");
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}
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if (!function_exists('collator_create')) {
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// Reimplementing intl's collator would be a huge undertaking, so we
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// use it instead to presort the generated locale specific data.
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die('The intl extension was not found.');
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}
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// Locales listed without a "-" match all variants.
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// Locales listed with a "-" match only those exact ones.
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$ignoredLocales = array(
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// Interlingua is a made up language.
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'ia',
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// Valencian differs from its parent only by a single character (è/é).
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'ca-ES-VALENCIA',
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// Those locales are 90% untranslated.
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'aa', 'as', 'az-Cyrl', 'az-Cyrl-AZ', 'bem', 'dua', 'gv', 'haw', 'ig', 'ii',
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'kkj', 'kok', 'kw', 'lkt', 'mgo', 'nnh', 'nr', 'nso', 'om', 'os', 'pa-Arab',
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'pa-Arab-PK', 'qu', 'rw', 'sah', 'smn', 'ss', 'ssy', 'st', 'tg', 'tn', 'ts',
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'uz-Arab', 'uz-Arab-AF', 've', 'vo', 'xh', 'yi',
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// Special "grouping" locales.
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'root', 'en-US-POSIX', 'en-001', 'en-150', 'es-419',
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);
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$languages = array();
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// Load the "en" data first so that it can be used as a fallback for
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// untranslated language names in other locales.
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$languageData = json_decode(file_get_contents($enLanguages), true);
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$languageData = $languageData['main']['en']['localeDisplayNames']['languages'];
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foreach ($languageData as $languageCode => $languageName) {
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if (strpos($languageCode, '-alt-') === FALSE) {
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$languages['en'][$languageCode] = array(
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'code' => $languageCode,
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'name' => $languageName,
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);
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}
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}
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// Gather available locales.
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$locales = array();
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if ($handle = opendir('../json-full/main')) {
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while (false !== ($entry = readdir($handle))) {
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if (substr($entry, 0, 1) != '.') {
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$entryParts = explode('-', $entry);
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if (!in_array($entry, $ignoredLocales) && !in_array($entryParts[0], $ignoredLocales)) {
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$locales[] = $entry;
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}
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}
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}
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closedir($handle);
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}
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// Remove all languages that aren't an available locale at the same time.
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// This reduces the language list from about 515 to about 185 languages.
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foreach ($languages['en'] as $languageCode => $languageData) {
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if (!in_array($languageCode, $locales)) {
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unset($languages['en'][$languageCode]);
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}
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}
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// Load the localizations.
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foreach ($locales as $locale) {
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$data = json_decode(file_get_contents('../json-full/main/' . $locale . '/languages.json'), true);
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$data = $data['main'][$locale]['localeDisplayNames']['languages'];
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foreach ($data as $languageCode => $languageName) {
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if (isset($languages['en'][$languageCode])) {
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// This language name is untranslated, use to the english version.
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if ($languageCode == $languageName) {
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$languageName = $languages['en'][$languageCode]['name'];
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}
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$languages[$locale][$languageCode] = array(
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'code' => $languageCode,
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'name' => $languageName,
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);
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}
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}
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}
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// Identify localizations that are the same as the ones for the parent locale.
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// For example, "fr-FR" if "fr" has the same data.
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$duplicates = array();
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foreach ($languages as $locale => $localizedLanguages) {
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if (strpos($locale, '-') !== FALSE) {
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$localeParts = explode('-', $locale);
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array_pop($localeParts);
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$parentLocale = implode('-', $localeParts);
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$diff = array_udiff($localizedLanguages, $languages[$parentLocale], function ($first, $second) {
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return ($first['name'] == $second['name']) ? 0 : 1;
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});
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if (empty($diff)) {
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// The duplicates are not removed right away because they might
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// still be needed for other duplicate checks (for example,
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// when there are locales like bs-Latn-BA, bs-Latn, bs).
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$duplicates[] = $locale;
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}
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}
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}
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// Remove the duplicates.
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foreach ($duplicates as $locale) {
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unset($languages[$locale]);
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}
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// Write out the localizations.
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foreach ($languages as $locale => $localizedLanguages) {
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$collator = collator_create($locale);
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uasort($localizedLanguages, function($a, $b) use ($collator) {
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return collator_compare($collator, $a['name'], $b['name']);
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});
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$json = json_encode($localizedLanguages, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
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file_put_contents($locale . '.json', $json);
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}
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