The English "but" is a little hard for me to pin down in my mind. Perhaps it has too many meanings to make a good programming word.
in reply to Re: A "but" operator.
in thread A "but" operator.
I had brown hair, but now it's gray. (both are true)
He wanted to go, but had other commitments. (condition modified by 'but phrase')
She had but one laptop. (some kind of exclusive emphasis?)
(so many nodes and so little time ... )