Using a language code as the second parameter to languagename, as described on this page, do not seem to work anymore. To add that option again, replace the function languageName in I18nTags_body.php with this code:
public static function languageName( &$parser, $code = '', $code2 = '' ) {
global $wgLang;
if ( !$code ) return '';
$native = $code2 === 'native';
$cldr = is_callable(array( 'LanguageNames', 'getNames' ));
if ( !$native && $cldr ) {
$code2 = $code2 ? $code2 : $wgLang->getCode();
$languages = LanguageNames::getNames( $code2,
LanguageNames::FALLBACK_NORMAL,
LanguageNames::LIST_MW_AND_CLDR
);
} else {
$languages = Language::getLanguageNames( false );
}
return isset($languages[$code]) ? $languages[$code] : $code;
}
To add the possibility to convert in the other direction (i.e. from a language name in some language to an ISO code, you need to edit three files:
In I18nTags.php, add
$parser->setFunctionHook( 'languagecode', array($class, 'languageCode' ) );
in the function efI18nTagsInit, between wfLoadExtensionMessages. In I18nTags_body.php, add a new function like this:
public static function languageCode( &$parser, $name = '', $lang = '' ) {
global $wgLang;
if ( !$name ) return '';
$native = $lang === 'native';
$cldr = is_callable(array( 'LanguageNames', 'getNames' ));
if ( !$native && $cldr ) {
$lang = $lang ? $lang : $wgLang->getCode();
$languages = LanguageNames::getNames( $lang,
LanguageNames::FALLBACK_NORMAL,
LanguageNames::LIST_MW_AND_CLDR
);
} else {
$languages = Language::getLanguageNames( false );
}
$key = array_search($name, $languages);
return $key ? $key : $name;
}
and finally, in I18nTags.magic.php, add the line
'languagecode' => array( 0, 'languagecode' ),
to the array with aliases of all languages used on your wiki, e.g. like this:
/** English (English) */ $magicWords['en'] = array( 'languagename' => array( 0, 'languagename' ), 'languagecode' => array( 0, 'languagecode' ), );
This is how we use this extension at Säsongsmat.nu.