Johannes Schindelin [off-list ref] writes:
quoted
To be honest, I do not quite understand why you call it "ugly hack"
at all.
Well, it is convoluted. I would have preferred to say "if this condition
is not met or that condition is not met, fail". Instead I had to say "If`
these two conditions are met, proceed as before. Otherwise, fail."
And of course its ugliness increased in my mind because I had to go
through so many iterations until it finally worked. Not really
straight-forward a solution.
To my eyes without your battle scar, it felt more natural to say "If
somebody says he is user $U and gives a password $P, let him in;
keep everybody else out" when configuring a server than saying "Fail
anybody whose user name is not $U or who says his password is not
$P". I can certainly understand if somebody who has spent a lot of
effort to make things _fail_ finds the latter more natural.