Object to manipulate BCP47 language tags
Dump the non−null LangTag object parts
Philip Kime "<philip at kime.org.uk>"
Please report any bugs or feature requests on our Github tracker at <https://github.com/plk/biber/issues>.
Copyright 2012−2019 Philip Kime, all rights reserved.
This module is free software. You can redistribute it and/or modify it under the terms of the Artistic License 2.0.
This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.