Patrick Durusau <> wrote on 08/03/2010 09:51:52 AM:
>
> While proofing this morning I read:
> The defined values for the dr3d:texture-filter attribute are:
> disabled: texture filtering should not be enabled.
> enabled: texture filtering should be enabled.
>
> Unrelated to this particular attribute there have been discussions
> about how to extract all the shall/should/may clauses and this is an
> example of one of those.
>
> My question is that in a future revision, should attribute settings
> be advisory?
>
What is the alternative?
"disabled: texture filtering shall not be enabled."
But this is not really testable unless the semantics of "texture
filtering" is fully defined.
or we could say:
"disabled: texture filtering is disabled."
But that is just tautological.
In other words being more precise about the force of the clause (mandatory
versus optional behavior) is a secondary issue compared to developing a
testable description of the semantics.
-Rob
