Not like operator

[brainsiq]

Is there already a way of doing a not like expression?

I can see it's really easy to add another binary operator for it, but it doesn't seem correct as if this was done in CSS it would use :not()

[dead1]

I wish to implement nodejs application input validation through some JSON selector language and in case of JSONSelect I need something like ".languagesSpoken :not(.lang)" to select properties which not match my pattern and throw an "invalid properties" exception.