[OpenBIOS] [PATCH 7/10] Apple local variables implementation in Forth

[Mark Cave-Ayland]

On 17/08/11 07:47, Segher Boessenkool wrote:

>> Right I understand this, but I'm fairly sure there is an official spec
>> for Forth local variables somewhere.
>
> Standard (ISO/ANS) Forth (1994) has a LOCALS wordset, which is meant to
> build more convenient syntaxes on, not to be used directly. The various
> locals wordsets people used at that time differed too much.
>
> Nowadays implementations for locals have converged a bit more, and the
> upcoming Forth 201x standard will most likely include a locals wordset
> not unlike what Apple used, but slightly different syntax (and quite
> different semantics if you look deeply!)
>
> Gforth has similar syntax, as do many other systems.
>
> And, of course, local variables in Forth is an abomination that should
> be avoided -- just like ROLL etc. :-)

Now I understand. Segher - as you seem to be one of the most fluent 
people in Forth out of everyone on the list - would you be willing/able 
to review this particular patch?


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
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