- languageTag = languageTag.toLowerCase();
-
- bcp47Map = mw.language.getData( mw.config.get( 'wgUserLanguage' ), 'bcp47Map' );
- if ( bcp47Map && Object.prototype.hasOwnProperty.call( bcp47Map, languageTag ) ) {
- languageTag = bcp47Map[ languageTag ];
- }
-
- segments = languageTag.split( '-' );