User:Mathglot/sandbox/Templates/codeorlang-to-code

{{documentation|content=Given an ISO-639 code or a language name, return an ISO-639 language code (or error message).

Parameters
There is one required unnamed parameter:
 * 1 – ISO-639 language code, or language name

Examples
⟶  ⟶   ⟶   ⟶ }}