local export = {}


-- Extract a Wikidata id from a sense id
local function Wikidata_id(id)
	return mw.ustring.match(id, "Q%d+")
end


function export.anchor(lang, id)
	if not (type(id) == "string" or type(id) == "number") then
		error("The second argument to senseid should be a string or a number.")
	end
	
	return lang:getCanonicalName() .. "-" .. mw.uri.encode(id, "WIKI")
end


function export.senseid(lang, id)
	-- Track which entries use Wikidata ids
	if Wikidata_id(id) then
		--[=[
		[[Special:WhatLinksHere/Template:Wt/sco/tracking/senseid/Wikidata]]
		]=]
		require("Module:debug").track("senseid/Wikidata")
	end
	
	return '<li class="senseid" id="' .. export.anchor(lang, id) .. '">'
end


return export