Module:Is infobox in lead

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Module:Is infobox in lead checks if a given infobox is in the lead, is also the only infobox in the lead, and that there aren't two of that same infobox in the article. If that is the case, it returns true, and if not returns nothing.

This is designed for use by infoboxes that automatically generate short descriptions, to make sure they only generate a short description if they are the lead infobox.

Usage

{{#invoke:Is infobox in lead|main|[Ii]nfobox [Ff]oo [Bb]ar}}

It does not detect redirects which do not match the parameter. Redirects can be handled with an extra invocation per redirect pattern, e.g.:

{{#invoke:Is infobox in lead|main|[Ii]nfobox [Ss]ong}}{{#invoke:Is infobox in lead|main|[Ii]nfobox [Ss]ingle}}

Redirects can be found with WhatLinksHere.

The above documentation is transcluded from Module:Is infobox in lead/doc. (edit | history)
Editors can experiment in this module's sandbox (edit | diff) and testcases (create) pages.
Subpages of this module.

local p = {}

function p.main (frame)
	local content = mw.title.getCurrentTitle():getContent()
	local offset = string.find(content, "==", 1 , true)
	if offset then
		lead = string.sub(content, 1, offset-1)
		if (string.find(lead, frame.args[1])) then
			iter = string.gmatch(lead, "[Ii]nfobox")
			iter()
			if not iter() then --if able to find two infoboxes, then don't return true
				return "true"
			end
		end
	end
end

return p