Module:Transclusion count

Documentation for this module may be created at Module:Transclusion count/doc

local p = {}

local function _fetch(frame)
	local template = mw.ustring.gsub(mw.title.getCurrentTitle().text, "/doc$", "")
	if frame.args["demo"] and frame.args["demo"] ~= "" then
		template = mw.ustring.gsub(frame.args["demo"], "/doc$", "")
	end
	local index = mw.ustring.upper(mw.ustring.sub(template,1,1))
	local data = mw.loadData('Module:Transclusion_count/data/' .. (mw.ustring.find(index, "%a") and index or "other"))
	
	local return_value = tonumber(data[mw.ustring.gsub(template, " ", "_")])
	
	-- If database value doesn't exist, use value passed to template
	if return_value == nil then
		local arg1=mw.ustring.match(frame.args[1], '[%d,]+')
		return_value = tonumber(frame:callParserFunction('formatnum', arg1, 'R'))
	end
	
	return return_value	
end

function p.num(frame)
	local count = _fetch(frame)
	
	-- Build output string
	local return_value = ""
	if count == nil then
		if frame.args[1] == "risk" then
			return_value = "a very large number of"
		else
			return_value = "many"
		end
	else
		-- Use 2 sigfigs for smaller numbers and 3 for larger ones
		local sigfig = 2
		if count >= 100000 then
			sigfig = 3
		end
		
		-- Prepare to round to appropriate number of sigfigs
		local f = math.floor(math.log10(count)) - sigfig + 1
		
		-- Round and insert "apprxomimately" or "+" when appropriate
		if (frame.args[2] == "yes") or (mw.ustring.sub(frame.args[1],-1) == "+") then
			-- Round down
			return_value = mw.getContentLanguage():formatNum(math.floor( (count / 10^(f)) ) * (10^(f))) .. "+"
		else
			-- Round to nearest
			return_value = "approximately " .. mw.getContentLanguage():formatNum(math.floor( (count / 10^(f)) + 0.5) * (10^(f)))
		end
		
		-- Insert percent of pages
		if frame.args["all-pages"] and frame.args["all-pages"] ~= "" then
			local percent = math.floor( ( (count/frame:callParserFunction('NUMBEROFPAGES', 'R') ) * 100) + 0.5)
			return_value = return_value .. " pages, which is ≈" .. percent .. "% of all"
		end	
	end
	
	return return_value
end

function p.risk(frame)
	local return_value = ""
	if frame.args[1] == "risk" then
		return_value = "risk"
	else
		local count = _fetch(frame)
		if count and count >= 100000 then return_value = "risk" end
	end
	return return_value
end

return p