Viktor Cerovski wrote:
> This leads us to consider a generalization of the adverb f.,
> namely a conjunction f: (fix-without) such that
>
> U f: 'C'
>
> would fix U except for C, giving:
>
> C * %
I actually have a tool that does this, in a different manner. I wrote a
version of f. that fixes only /local/ names. That is it fixes those names
assigned with =. but not those assigned with =: .
I think this is a fairly elegant approach, because local names by definition
are ephemeral, and are going to go out of scope, so therefore any (global) name
that depends on local (non-noun) names really wants a copy of their value, not
a reference to it (which reference is going to break, later). So you'd write
the above like this
C =: 1 fun NB. Note global =:
U =: C * V
V =. % NB. Note local =.
U fl NB. Leaves global C alone, replaces local V with its
value
C * %
You can read more about fl here:
http://www.jsoftware.com/jwiki/DanBron/Temp/Fix%20Locals .
Unfortunately, right now, it's broken, because Roger changed the domain of the
(undocumented) 15!:6 foreign in J602. I'll have to find another way to
distinguish each_base_ from each_z_ before in order to fix it.
-Dan
PS: Roger, this change to 15!:6 has tripped me up on a number of occasions?
Was it intentional? If so, could you share your reasons? If not, what are the
chances of changing it back in J7?
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