func readAddAgg(s *toki.Scanner, table *tbl.Table) error {
t := s.Next()
if t.Token != sumFn && t.Token != avgFn {
return errors.New("invalid function. need sum/avg")
}
fun := string(t.Value)
if t = s.Next(); t.Token != word {
return errors.New("need a regex string")
}
regex := string(t.Value)
if t = s.Next(); t.Token != word {
return errors.New("need a format string")
}
outFmt := string(t.Value)
if t = s.Next(); t.Token != num {
return errors.New("need an interval number")
}
interval, err := strconv.Atoi(strings.TrimSpace(string(t.Value)))
if err != nil {
return err
}
if t = s.Next(); t.Token != num {
return errors.New("need a wait number")
}
wait, err := strconv.Atoi(strings.TrimSpace(string(t.Value)))
if err != nil {
return err
}
agg, err := aggregator.New(fun, regex, outFmt, uint(interval), uint(wait), table.In)
if err != nil {
return err
}
table.AddAggregator(agg)
return nil
}
