Module:Error

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

local p = {}

local function _error(args)
	local tag = mw.ustring.lower(tostring(args.tag or 'strong'))
	
	-- Work out what html tag we should use.
	if not (tag == 'p' or tag == 'span' or tag == 'div') then
		tag = 'strong'
	end
	
	-- Generate the html.
	return tostring(mw.html.create(tag)
		:addClass('error')
		:wikitext(tostring(args.message or args[1] or error('no message specified', 2)))
	)
end

function p.error(frame)
	local args
	if type(frame.args) == 'table' then
		--[=[
			We're being called via #invoke.
			The args are passed through to the module from the template page,
			so use the args that were passed into the template.
		]=]
		args = frame.args
	else
		--[=[
			We're being called from another module or from the debug console,
			so assume the args are passed in directly.
		]=]
		args = frame
	end
	--[=[
		If the message parameter is present but blank, change it to nil.
	]=]
	if args.message == '' then
		args.message = nil
	end
	return _error(args)
end

return p