value = 0 timestamp = 0 source = 'pentominos' if(cpr and cpr.cpr and cpr.cpr.value and cpr.cpr.timestamp and cpr.cpr.source) then value = string.sub(cpr.cpr.value,1,6) .. '-' .. string.sub(cpr.cpr.value,7,11) timestamp = cpr.cpr.timestamp source = cpr.cpr.source end return value, timestamp, source