On Fri, 6 Jan 2017, Allin Cottrell wrote:
>> We've been here before: it's difficult to stack up
"membership-of"
>> relationships, the way our parser is currently structured. This applies
>> particularly to the left-hand side of "genr" expressions but also to a
>> degree on the right. Note that
>>
>> eval bs[1].num
>>
>> doesn't work either.
>
> Yeah, that is a more serious problem.
>
>> to fix this in a general way. I'll try to get this done before the
>> Athens conference, maybe sooner.
>
> Again, is this really that pressing? I mean, who except myself is using
> this anyway...?
I think that many script-writers would use this sort of thing if was expected
to work -- and it really ought to work. Your exceptionality is that you keep
trying it, and pointing out that it doesn't work ;-)
Closely related: I have a meeting scheduled for the 19th of January with
someone that (perhaps) could help us finally write down a BNF grammar for
hansl. This would probably remove most obstacles towards having arbitrary
slicing on the left-hand side of assignments (plus many more goodies, such
as eg a proper debugger etc).
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Riccardo (Jack) Lucchetti
Dipartimento di Scienze Economiche e Sociali (DiSES)
Università Politecnica delle Marche
(formerly known as Università di Ancona)
r.lucchetti(a)univpm.it
http://www2.econ.univpm.it/servizi/hpp/lucchetti
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