|yes
|
| Language tag ([http://www.loc.gov/standards/iso639-2/php/code_list.php ISO 639-1 Code]-[http://www.iso.org/iso/english_country_names_and_code_elements ISO 3166-1-alpha-2 code])
|
|@TODO: Add regex
|
|<source lang="javascript">"preferredLanguage": "de-CH"</source>