แม่แบบ:Substcheck

SUBST

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This template can be used in conditional processing in other templates to detect substitutions.

If you use Module:Unsubst, you need not use this template.

Usage

If you put <includeonly>{{subst:</includeonly><includeonly>substcheck}}</includeonly> into a template, it will expand into one of the following, depending how the template is being viewed.

• SUBST if the template is being substituted
• {{subst:substcheck}} if the template is being transcluded
• Empty string if you are viewing the template page.

Using this template differently may yield different results; the above is the most universal way.

Lua replacement

if mw.isSubsting() then
	-- substituting: "SUBST"
elseif mw.getCurrentFrame():getParent():getTitle() == mw.title.getCurrentTitle().fullText then
	-- viewed directly: ""
else
	-- transclusion: "{{subst:substcheck}}"
end

See also

• Module:Unsubst
• mw.isSubsting()
• frame:getTitle()