Template:LangSwitch

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<templatedata>JSON</templatedata> ./. {{TemplateBox}}
TemplateData

TemplateData is a way to store information about template parameters (the description of those and of the whole template) for both humans and machines. It is used by VisualEditor and possibly other tools like Upload Wizard.


Existing template documentation
At Wikimedia Commons, it is recommended to use {{TemplateBox}} with either useTemplateData=1 or useTemplateData=only on the /doc subpage and transcluding it with {{Documentation}} into the template. <nowiki>-tags can be wrapped around the arguments, if required, to avoid templates being expanded.

Newly created template documentation and imports
Another option, especially for imported templates, or for users with JSON experience, is placing raw <templatedata>-tags into the Wikitext of the template, as described in various Wikipediae.

Discussion
There is an ongoing discussion about that matter. Feel invited to comment if you are experienced in either way, your time permits and if you like to share your opinion or to make a suggestion.


Wikipedia's help about TemplateDataCommons-specific information

Examples

Without a default option

Here are a few examples showing template behavior for three languages: English, Italian and Corsu, which defaults to Italian if Corsu text is not available:

Test Code lang=en lang=it lang=co
No en; default {{LangSwitch|it=Italian|default=default}} default Italian Italian
No en; no default {{LangSwitch|it=Italian|co=Corsu}} LangSwitch Error: no default[1] LangSwitch Error: no default[1] LangSwitch Error: no default[1]
en; default {{LangSwitch|en=English|co=Corsu|default=default}} English default Corsu
en; no default {{LangSwitch|en=English|co=Corsu}} English English Corsu
en; skip default {{LangSwitch|en=English|co=Corsu|default=~}} English Corsu
en; empty default {{LangSwitch|en=English|co=Corsu|default=}} English English Corsu
Skip en; default {{LangSwitch|en=~|it=Italian|default=default}} Italian Italian
Skip en; no default {{LangSwitch|en=~|it=Italian}} Italian Italian
Empty en; no default {{LangSwitch|en=|it=Italian}} LangSwitch Error: no default LangSwitch Error: no default LangSwitch Error: no default
en; default; skip it {{LangSwitch|en=English|it=~|co=Corsu|default=default}} English Corsu
en; default; empty it {{LangSwitch|en=English|it=|co=Corsu|default=default}} English default Corsu
en; no default; skip it {{LangSwitch|en=English|it=~|co=Corsu}} English Corsu
Forced "lang=co" {{LangSwitch|en=English|co=Corsu|default=default|lang=co}} Corsu Corsu Corsu

Default option

The default option is intended for providing more language independent option. For example:

{{LangSwitch
|de=[[:de:Warschau|Warschau]]
|en=[[:en:Warsaw|Warsaw]]
|fr=[[:fr:Varsovie|Varsovie]]
|ja=[[:ja:ワルシャワ|ワルシャワ]]
|pl=[[:pl:Warszawa|Warszawa]]
|default=[[d:Q270]]
}}

will provide link to Wikipedia articles in case one of the languages provided matches user's language but will link to Commons gallery page (Warsaw) if any other language is used.

Warning

Notes