Template:GetFallback/doc

Fallback mechanism part #1. Map:

1. af (Afrikaans), fy (Western Frisian), li (Liechtenstein), vls (Vlaams), zea (Zeeuws), nl-informal -> nl (Dutch)
2. arz (Egyptian Arabic) -> ar (Arabic)
3. be-x-old -> be-tarask (wrong to correct Taraškievica form)
4. crh-cyrl , crh-latn -> crh (Crimean Tatar)
5. ckb (Sorani) , mzn (Mazandarani), glk (Gilaki) -> fa (Persian)
6. als (Alemannic), bar (Bavarian) , de-formal , de-at , de-ch , frr (North Frisian) , ksh (Ripuarian) -> de (German)
7. hif-deva , hif-latn -> hif (Fiji Hindi)
8. ike-cans , ike-latn -> ike (Eastern Canadian Inuktitut)
9. kk-arab , kk-cyrl , kk-latn , kk-cn , kk-kz , kk-tr -> kk (Kazakh)
10. ku-latn , ku-arab -> ku (Kurdish)
11. mg (Malagasy) , br (Breton), co (Corsican) , frp (Franco-Provençal/Arpitan) , ht (Haitian) , ty (Tahitian), wa -> fr (French)
12. nds (Low German) -> nds-nl (Dutch Low Saxon)
13. nds-nl(Dutch Low Saxon) , pdt (Plautdietsch) -> nds (Low German)
14. be-tarask (Belarusian in Taraskievica orthography) -> be-x-old (Belarusian in Taraskievica orthography)
15. be-x-old (Belarusian in Taraskievica orthography) -> be-tarask (Belarusian in Taraskievica orthography)
16. pt-br (Brazilian Portuguese) -> pt (Portuguese)
17. ruq-cyrl , ruq-grek , ruq-latn -> ruq (Megleno Romanian)
18. sr-ec , sr-el -> sr (Serbian)
19. tg-cyrl , tg-latn -> tg (Tajik)
20. tt-cyrl , tt-latn -> tt (Tatar)
21. vec (Venetian) -> it (Italian)
22. zh-cn , zh-hans , zh-hant , zh-hk , zh-mo , zh-my , zh-sg , zh-tw -> zh (Chinese)
23. szl (Silesian) , csb (Kashubian) -> pl (Polish)

or otherwise return default

Usage

{{GetFallback |1= |default= }}

Should be used only by other templates. Not intended to be used directly.

Template parameters

Parameter	Description		Default	Status
1	any supported language code		{{int:Lang}}	optional
default	default language code returned		en	optional

Additional information

The template is intended to be used in the following namespaces: no namespace specified

The template is intended to be used by the following user groups: no user group specified

⧼Seealso⧽

• {{GetFallback2}}
• www.iana.org/assignments/language-subtag-registry