(("plain category") #f ("plain category" #f #f #f #f #f))
(("[transfer]") #f ("transfer" #t #f #f #f #f))
((bad-data) #t (qif-io:arg-type qif-io:parse-category string bad-data))
(("category/class") #f ("category" #f "class" #f #f #f))
(("[transfer]/class") #f ("transfer" #t "class" #f #f #f))
(("[transfer]/class|[miscxfer]") #f ("transfer" #t "class" "miscxfer" #t #f))
(("[transfer]/class|miscxfer") #f ("transfer" #t "class" "miscxfer" #f #f))
(("[transfer]/class|[miscxfer]/class2") #f 
  ("transfer" #t "class" "miscxfer" #t "class2"))
(("class1/class2:ISDN|[Telecom]") #f ("class1" #f "class2:ISDN" "Telecom" #t #f))