模块:If preview

local p = {}

local cfg = mw.loadData('Module:If preview/configuration')

function p.main(frame)
	if cfg.preview then
		return frame.args[1] or ''
	else
		return frame.args[2] or ''
	end
end

function p.pmain(frame)
	return p.main(frame:getParent())
end

local function warning_text(warning)
	return mw.ustring.format(
		cfg.warning_infrastructure,
		cfg.templatestyles,
		warning
	)
end

function p._warning(args)
	local warning = args[1] and args[1]:match('^%s*(.-)%s*$') or ''
	if warning == '' then
		return warning_text(cfg.missing_warning)
	end
	if not cfg.preview then return '' end
	return warning_text(warning)
end

function p.pwarning(frame)
	return p._warning(frame:getParent().args)
end

return p