Revert "Revert "Language names via intl library.""

This reverts commit 4f35efa0bad4ae6489b63f3eebafe6542d654094.

1 files changed, 153 insertions, 0 deletions

diff --git a/library/intl/scripts/currency/generate.php b/library/intl/scripts/currency/generate.php
new file mode 100644
index 000000000..723906f7a
--- /dev/null
+++ b/library/intl/scripts/currency/generate.php
@@ -0,0 +1,153 @@
+<?php
+
+/**
+ * Generates the json files stored in resources/currency.
+ *
+ * The ISO currency list is used as a base, since it doesn't contain
+ * deprecated currencies, unlike CLDR (v25 has 139 deprecated entries).
+ */
+
+set_time_limit(0);
+
+// Downloaded from http://www.currency-iso.org/en/home/tables/table-a1.html
+$isoCurrencies = '../c2.xml';
+// Downloaded from http://unicode.org/Public/cldr/26/json-full.zip
+$cldrCurrencies = '../json-full/main/en-US/currencies.json';
+$currencyData = '../json-full/supplemental/currencyData.json';
+if (!file_exists($isoCurrencies)) {
+    die("The $isoCurrencies file was not found");
+}
+if (!file_exists($cldrCurrencies)) {
+    die("The $cldrCurrencies file was not found");
+}
+if (!file_exists($currencyData)) {
+    die("The $currencyData file was not found");
+}
+if (!function_exists('collator_create')) {
+    // Reimplementing intl's collator would be a huge undertaking, so we
+    // use it instead to presort the generated locale specific data.
+    die('The intl extension was not found.');
+}
+
+// Locales listed without a "-" match all variants.
+// Locales listed with a "-" match only those exact ones.
+$ignoredLocales = array(
+    // Interlingua is a made up language.
+    'ia',
+    // Valencian differs from its parent only by a single character (è/é).
+    'ca-ES-VALENCIA',
+    // Those locales are 90% untranslated.
+    'aa', 'as', 'az-Cyrl', 'az-Cyrl-AZ', 'bem', 'dua', 'gv', 'haw', 'ig', 'ii',
+    'kkj', 'kok', 'kw', 'lkt', 'mgo', 'nnh', 'nr', 'nso', 'om', 'os', 'pa-Arab',
+    'pa-Arab-PK', 'qu', 'rw', 'sah', 'smn', 'ss', 'ssy', 'st', 'tg', 'tn', 'ts',
+    'uz-Arab', 'uz-Arab-AF', 've', 'vo', 'xh', 'yi',
+    // Special "grouping" locales.
+    'root', 'en-US-POSIX', 'en-001', 'en-150', 'es-419',
+);
+
+// Assemble the base data.
+$baseData = array();
+$currencyData = json_decode(file_get_contents($currencyData), true);
+$currencyData = $currencyData['supplemental']['currencyData']['fractions'];
+$isoData = simplexml_load_file($isoCurrencies);
+foreach ($isoData->CcyTbl->CcyNtry as $currency) {
+    $attributes = (array) $currency->CcyNm->attributes();
+    if (!empty($attributes) && !empty($attributes['@attributes']['IsFund'])) {
+        // Ignore funds.
+        continue;
+    }
+    $currency = (array) $currency;
+    if (empty($currency['Ccy'])) {
+        // Ignore placeholders like "Antarctica".
+        continue;
+    }
+    if (substr($currency['CtryNm'], 0, 2) == 'ZZ' || in_array($currency['Ccy'], array('XUA', 'XSU', 'XDR'))) {
+        // Ignore special currencies.
+        continue;
+    }
+
+    $currencyCode = $currency['Ccy'];
+    $baseData[$currencyCode] = array(
+        'code' => $currencyCode,
+        'numeric_code' => $currency['CcyNbr'],
+    );
+    // Take the fraction digits from CLDR, not ISO, because it reflects real
+    // life usage more closely. If the digits aren't set, that means that the
+    // default value (2) should be used.
+    if (isset($currencyData[$currencyCode]['_digits'])) {
+        $fractionDigits = $currencyData[$currencyCode]['_digits'];
+        if ($fractionDigits != 2) {
+            $baseData[$currencyCode]['fraction_digits'] = $fractionDigits;
+        }
+    }
+}
+
+// Write out base.json.
+ksort($baseData);
+$json = json_encode($baseData, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
+file_put_contents('base.json', $json);
+
+// Gather available locales.
+$locales = array();
+if ($handle = opendir('../json-full/main')) {
+    while (false !== ($entry = readdir($handle))) {
+        if (substr($entry, 0, 1) != '.') {
+            $entryParts = explode('-', $entry);
+            if (!in_array($entry, $ignoredLocales) && !in_array($entryParts[0], $ignoredLocales)) {
+                $locales[] = $entry;
+            }
+        }
+    }
+    closedir($handle);
+}
+
+// Create the localizations.
+$currencies = array();
+foreach ($locales as $locale) {
+    $data = json_decode(file_get_contents('../json-full/main/' . $locale . '/currencies.json'), true);
+    $data = $data['main'][$locale]['numbers']['currencies'];
+    foreach ($data as $currencyCode => $currency) {
+        if (isset($baseData[$currencyCode])) {
+            $currencies[$locale][$currencyCode] = array(
+                'name' => $currency['displayName'],
+                'symbol' => $currency['symbol'],
+            );
+        }
+    }
+}
+
+// Identify localizations that are the same as the ones for the parent locale.
+// For example, "fr-FR" if "fr" has the same data.
+$duplicates = array();
+foreach ($currencies as $locale => $localizedCurrencies) {
+    if (strpos($locale, '-') !== FALSE) {
+        $localeParts = explode('-', $locale);
+        array_pop($localeParts);
+        $parentLocale = implode('-', $localeParts);
+        $diff = array_udiff($localizedCurrencies, $currencies[$parentLocale], function ($first, $second) {
+            return ($first['name'] == $second['name']) ? 0 : 1;
+        });
+
+        if (empty($diff)) {
+            // The duplicates are not removed right away because they might
+            // still be needed for other duplicate checks (for example,
+            // when there are locales like bs-Latn-BA, bs-Latn, bs).
+            $duplicates[] = $locale;
+        }
+    }
+}
+// Remove the duplicates.
+foreach ($duplicates as $locale) {
+    unset($currencies[$locale]);
+}
+
+// Write out the localizations.
+foreach ($currencies as $locale => $localizedCurrencies) {
+    $collator = collator_create($locale);
+    uasort($localizedCurrencies, function($a, $b) use ($collator) {
+        return collator_compare($collator, $a['name'], $b['name']);
+    });
+
+    $json = json_encode($localizedCurrencies, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
+    file_put_contents($locale . '.json', $json);
+}