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<?php
/**
* A class for querying translated language names from CLDR data.
*
* @author Niklas Laxström
* @author Ryan Kaldari
* @copyright Copyright © 2007-2011
* @license GPL-2.0-or-later
*/
class LanguageNames extends CldrNames {
private static $cache = [];
const FALLBACK_NATIVE = 0; // Missing entries fallback to native name
const FALLBACK_NORMAL = 1; // Missing entries fallback through the fallback chain
const LIST_MW_SUPPORTED = 0; // Only names that have localisation in MediaWiki
const LIST_MW = 1; // All names that are in Names.php
const LIST_MW_AND_CLDR = 2; // Combination of Names.php and what is in cldr
/**
* Get localized language names for a particular language, using fallback languages for missing
* items.
*
* @param string $code
* @param int $fbMethod
* @param int $list
* @throws Exception
* @return array an associative array of language codes and localized language names
*/
public static function getNames( $code, $fbMethod = self::FALLBACK_NATIVE,
$list = self::LIST_MW
) {
$xx = self::loadLanguage( $code );
$native = Language::fetchLanguageNames(
null,
$list === self::LIST_MW_SUPPORTED ? 'mwfile' : 'mw'
);
if ( $fbMethod === self::FALLBACK_NATIVE ) {
$names = array_merge( $native, $xx );
} elseif ( $fbMethod === self::FALLBACK_NORMAL ) {
// Load missing language names from fallback languages
$fb = $xx;
$fallbacks = Language::getFallbacksFor( $code );
foreach ( $fallbacks as $fallback ) {
// Overwrite the things in fallback with what we have already
$fb = array_merge( self::loadLanguage( $fallback ), $fb );
}
/* Add native names for codes that are not in cldr */
$names = array_merge( $native, $fb );
/* As a last resort, try the native name in Names.php */
if ( !isset( $names[$code] ) && isset( $native[$code] ) ) {
$names[$code] = $native[$code];
}
} else {
throw new Exception( "Invalid value for 2:\$fallback in " . __METHOD__ );
}
switch ( $list ) {
case self::LIST_MW:
/** @noinspection PhpMissingBreakStatementInspection */
case self::LIST_MW_SUPPORTED:
/* Remove entries that are not in fb */
$names = array_intersect_key( $names, $native );
/* And fall to the return */
case self::LIST_MW_AND_CLDR:
return $names;
default:
throw new Exception( "Invalid value for 3:\$list in " . __METHOD__ );
}
}
/**
* Load currency names localized for a particular language. Helper function for getNames.
*
* @param string $code The language to return the list in
* @return array an associative array of language codes and localized language names
*/
private static function loadLanguage( $code ) {
if ( isset( self::$cache[$code] ) ) {
return self::$cache[$code];
}
self::$cache[$code] = [];
if ( !Language::isValidBuiltInCode( $code ) ) {
return [];
}
/* Load override for wrong or missing entries in cldr */
$override = __DIR__ . '/../LocalNames/' . self::getOverrideFileName( $code );
if ( file_exists( $override ) ) {
$languageNames = false;
require $override;
if ( is_array( $languageNames ) ) {
self::$cache[$code] = $languageNames;
}
}
$filename = __DIR__ . '/../CldrNames/' . self::getFileName( $code );
if ( file_exists( $filename ) ) {
$languageNames = false;
require $filename;
if ( is_array( $languageNames ) ) {
if ( isset( self::$cache[$code] ) ) {
// Add to existing list of localized language names
self::$cache[$code] = self::$cache[$code] + $languageNames;
} else {
// No list exists, so create it
self::$cache[$code] = $languageNames;
}
}
} else {
wfDebug( __METHOD__ . ": Unable to load language names for $filename\n" );
}
return self::$cache[$code];
}
/**
* @param array &$names
* @param string $code
* @return bool
*/
public static function coreHook( &$names, $code ) {
$names += self::getNames( $code, self::FALLBACK_NORMAL, self::LIST_MW_AND_CLDR );
return true;
}
}
|
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