#3 please do not abhor zero

[Turbo Beholder]

It's impossible to match id or rid to 0 or \x00 for some reason
v. 0.3.4-1 (debian-ubuntu)

[Timo Savinen]

First field or offset is number 1.

[Turbo Beholder]

How to choose the variant record where id [whatever] ==0 ?

So far, it's impossible. And there's no "else" to match for everything else.
Thus a structure with several variant records, one of which can be all ==0, cannot be correctly matched AT ALL.
And since increment is always 1 byte, it cannot be correctly skipped either - ffe reading such a file loses the track of record offsets from the first zero record on.

[Timo Savinen]

Do you mean that something like

id 3 "0"

does not work? Or could you give a real world example?