Template:BCP47

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This documentation is transcluded from Template:BCP47/doc.

This template fixes the current violations of the BCP47 standard (for inclusion in the lang HTML attribute) by Wikimedia sites for their language codes.

It also normalizes these codes to lowercase only (though it is not mandatory).

Use this template only in the HTML lang="" attribute.

• 1 Usage
  • 1.1 Template parameters
  • 1.2 Additional information
• 2 Localization
• 3 Examples

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=1or‎useTemplateData=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 TemplateData • Commons-specific information

The template is intended to be used in the following namespaces: the Template namespace

The template is intended to be used by the following user groups: all users

This template is not intended to be localized.

• Unaffected codes, for example:
  • "{{BCP47|en}}" returns: "en"
• Changes required by BCP47, using standard codes:
  • "{{BCP47|als}}" returns: "gsw"
  • "{{BCP47|fiu-vro}}" returns: "vro"
  • "{{BCP47|simple}}" returns: "en"
  • "{{BCP47|zh-classical}}" returns: "lzh"
  • "{{BCP47|roa-rup}}" returns: "rup"
• Changes required by BCP47, currently using private-use extensions:
  • "{{BCP47|nrm}}" returns: "nrf"
  • "{{BCP47|roa-tara}}" returns: "it-x-tara"
• Changes preferable with BCP47 for improved interoperability (not really violations):
  • "{{BCP47|be-x-old}}" returns: "be-tarask"

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