「テンプレート:Localization/register」を編集中

<includeonly><!-- 
-->{{#dplvar:set<!-- 
-->|l10n:reg:namespace|{{{1|}}}<!-- 
-->|l10n:reg:lang|{{{2|en}}}<!-- 
-->}}<!-- 

=========================================================================================
If autoloading was triggered, we only load the information for the language that {{l10n|}} currently needs, from the /l10n subtemplate. The registrations of the other languages in the /l10n subtemplate will be skipped, and instead only an "exists" flag for their language will be set. When {{l10n|}} needs another language's information, it will already know if that language exists in the /l10n subtemplate (thanks to the "exists" flag), and will only load the /l10n subtemplate again if that language does exist there.

Example (assuming autoload was triggered):
(Template:Test/l10n contains l10n registrations for en, fr, and de)
We call {{l10n|test|foo|en}}, so the /l10n subtemplate (Template:Test/l10n) will be loaded. Only {{l10n/register|test|en|foo=...}} will be registered; {{l10n/register|test|fr|foo=...}} and {{l10n/register|test|de|foo=...}} will be ignored (though both will be set to "exists").
Now we call {{l10n|test|foo|fr}} sometime later, and {{l10n|}} realizes that there is no relevant l10n information available about fr. Hence it checks the "exists" for fr and sees that there is a registration for fr in the /l10n subtemplate. Consequently, it will load the /l10n subtemplate again, now with the intention to register {{l10n/register|test|fr|foo=...}} (so the de registration will be ignored again).
Lastly, we call {{l10n|test|foo|zh}}, and {{l10n|}} again realizes it has no l10n information for zh. It finds that the "exists" flag for zh is not set, however, so it concludes there is no {{l10n/register|test|zh|foo=...}} in the /l10n subtemplate, and will not load it again. ({{l10n|}} will then fallback to using the en information.)

Thanks to this method, we can avoid processing numerous {{l10n/register}} calls for languages that are never used on a page, thus save a lot of runtime resources.
=========================================================================================

{{#var:l10n:autoloading}} is the important link to {{l10n|}}, the langcode it currently wants to autoload. If it is empty, this registration is transcluded manually (not on an /l10n subtemplate).

// autoloaded flag: this namespace has been autoloaded. 
-->{{#dplvar:set|l10n:autoloaded:{{#dplvar:l10n:reg:namespace}}|{{#var:l10n:autoloading}}}}<!-- 

// skip this registration?
-->{{#if:{{#switch:{{#dplvar:l10n:reg:lang}}|{{#var:l10n:autoloading}}|en=y|#default={{#if:{{#var:l10n:autoloading}}||y}}}}|<!-- 
	don't skip if: (checks performed in this order)
	* the language of this registration matches the language {{l10n|}} currently wants to autoload, or
	* the language of this registration is en (en should always be available for fallback), or
	* we are not autoloading (i.e. this {{l10n/register}} is not on an /l10n subtemplate).
	// actual registration:
	-->{{#forargs:|l10n:reg:_key|l10n:reg:_value|<!-- 
		-->{{#dplvar:set|l10n:{{#dplvar:l10n:reg:namespace}}:{{#dplvar:l10n:reg:lang}}:{{#var:l10n:reg:_key}}|{{#var:l10n:reg:_value}}}}<!-- 
	-->}}<!--
-->|<!-- 
	skip if:
	* we are autoloading, and
	* the language of this registration is not en, and
	* the language of this registration does not match the language {{l10n|}} currently wants to autoload.
	// only set the "exists" flag
	-->{{#dplvar:set|l10n:{{#dplvar:l10n:reg:namespace}}:{{#dplvar:l10n:reg:lang}}:2|y}}<!-- 
-->}}<!-- 

Results now (assuming we are autoloading):
* {{#dplvar:l10n:<namespace>:<lang>:1}} will now be non-empty if the l10n info for this language has been loaded and is readily available in full.
* {{#dplvar:l10n:autoloaded:<namespace>}} will always be non-empty now – the /l10n subtemplate for this namespace has been loaded at least once now.
* {{#dplvar:l10n:<namespace>:<lang>:2}} will now be non-empty if there is an l10n registration in the /l10n subtemplate for this lang, but the l10n info has not been loaded.

This information is used by {{l10n|}}.

--></includeonly><noinclude>{{doc}}
{{category|I18n-ready templates| }}
{{language info|en=Template:Localization/register}}
</noinclude>