local callAssert = require('Module:CallAssert')



local function main(frame, field)

	local args, pargs = frame.args, ( frame:getParent() or {} ).args or {}

	local makeTitle=args.makeTitle or pargs.makeTitle

	local namespace=args.namespace or pargs.namespace or ""

	local fragment=args.fragment or pargs.fragment or ""

	local interwiki=args.interwiki or pargs.interwiki or ""

	local page=args.page or args1 or pargs.page or pargs1 or ""

	local id= tonumber( args.id or pargs.id )

	local pn = {}

	local title -- holds the result of the mw.title.xxx call



	for i = 1,9 do pni = args'p'..i or pargs'p'..i end

	if not id and not mw.ustring.match( page, '%S' ) then page = nil end



	if id then

		title = callAssert(mw.title.new, 'mw.title.new', id)

	elseif not page then

		title = callAssert(mw.title.getCurrentTitle, 'getCurrentTitle')

	elseif makeTitle then

		title = callAssert(mw.title.makeTitle, 'makeTitle', namespace, page, fragment, interwiki)

	else

		title = callAssert(mw.title.new, 'mw.title.new', page, namespace)

	end



	local result = titlefield

	if type(result) == "function" then

		result = result(title, unpack(pn))

	end



	return tostring(result or "")

end



-- handle all errors in main

main = require('Module:Protect')(main)



local p = {}



-- main function does all the work

local meta = {}

function meta.__index(self, key)

	return function(frame)

		return main(frame, key)

	end

end

setmetatable(p, meta)



function p.getContent(frame)

	local args, pargs = frame.args, ( frame:getParent() or {} ).args or {}

	local fmt = args.as or pargs.as or "pre"

	local text = main(frame, "getContent")



	fmt = mw.text.split( fmt, ", ?" )



	for _, how in ipairs( fmt ) do

		if how == "pre" then

			text = table.concat{ "<pre>", text, "</pre>" }

		elseif how == "expand" then

			text = frame:preprocess(text)

		elseif how == "nowiki" then

			text = mw.text.nowiki(text)

		end

	end



	return text

end



return p