Template:Transclusionless

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This template can be added to templates' {{documentation}} pages or within <noinclude>...</noinclude> tags for templates that are used occasionally but may often have zero transclusions.

Examples of reasons why useful templates may not have any transclusions include, but are not limited to:

• They are applied to speedy deletion candidates, which are then deleted, leaving no transclusions of the template.
• They are substituted or otherwise applied by a script or tool like Twinkle or the page curation tools. (Also see below for a note about {{Always substitute}}.)
• They are applied to File pages to tag them with copyright-related concerns, and are then removed when those concerns are addressed or when the file is deleted.
• They are "preload" or boilerplate pages or page fragments that are used to build new pages.

Usage

{{Transclusionless}}

Do not use this for templates that must be substituted! That is what {{Always substitute}} is for.

Parameters

|should=yes can be used if the template should not be transcluded, i.e. an error will be shown if the template is transcluded. It will replace the "may" with "should" in "This template may have no transclusions."
|reason= can be used to customize the message within the template. The default reason, which will be replaced by your custom text, is "it is substituted by a tool or script, it is used as part of a short-term or less active Wikipedia process, or for some other reason".

TemplateData

This template can be added to the documentation pages of templates that are used occasionally but may often have zero transclusions, hiding them from reports of unused templates.

Template parameters[Edit template data]

Parameter		Description	Type	Status
should	should	Replaces "may" with "should" in the notice	Boolean	optional
reason	reason	Customizes the message within the template Suggested values it is substituted by a tool it is substituted by a script it is used as part of a short-term Wikipedia process it is used as part of a less active Wikipedia process Default it is substituted by a tool or script, it is used as part of a short-term or less active Wikipedia process, or for some other reason	String	optional

List of subst helper templates

• {{require substitution}} – Prints an error unless substituted.
• {{substituted or transcluded}} – if-then-else metatemplate that checks if a template is currently being substituted or transcluded
  • {{always substitute}} – For the doc of the above templates; prints a message asking for it be substituted.
  • {{never substitute}} – The reverse of {{always substitute}}. For the doc of templates which should not be substituted; prints a message asking for it not to be substituted.
  • {{may be substituted}} – For the doc of templates whose substitution is optional.
  • {{substitution}} – Allows free-fill description of whether the template should be substituted and under what conditions.
• {{ifsubst}} – Forks if substituted or not.
• {{issubst}} – Returns "yes" if substituted.
• {{HTML comment}} – To sign substitutions with comments that contain wikitext expansions
• Module:Unsubst – Prevents substitution.
• Module:Unsubst-infobox – Prevents substitution for infoboxes, cleans up parameters.

The above documentation is transcluded from Template:Transclusionless/doc. (edit | history)
Editors can experiment in this template's sandbox (create | mirror) and testcases (create) pages.
Add categories to the /doc subpage. Subpages of this template.