2009/2/23 Vlastimil Adamovsky <vlas01 at yahoo.com>: > > I want to parse digits, that are from 0 to 9 except those that are from 4 > to 7. > In reality, I want to parse only digits 0,1,2,3,8,9 .... > A: '0'..'3' | '8' | '9' ; Is this what you want ? Michael