I'm probably going to get beaten up for this :), but if my question is
totally absurd, please excuse my ignorance...
You seem to put a lot of emphasis on being able to use block!s as keys. Is
this really necessary or desired?
It seems like an implementation would be easier and/or more efficient if we
didn't have to worry about that case. Same for logic! values :)
Many other languages get by with just strings for keys, why do we have to be
able to use every Rebol data type as a key?
Keith
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, September 18, 2000 7:47 AM
Subject: [REBOL] Associative Data Store Re:
> Here's what happened when I tried it:
>
> >> blk: []
> == []
> >> Associate blk [2 3] 5
> == [[2 3] [5]]
> >> Associate? blk [2 3]
> == none
>
> Beg pardon? Also...
>
> >> Associate blk 5 7
> == [[2 3] [5] 5 [7]]
> >> Associate blk [5] 9
> == [[2 3] [5] 5 [9]]
> >> Associate? blk 5
> == 9
> >> Associate? blk [5]
> == 9
>
> Hmmm... Can't distinguish 5 from [5] ??
>
> >> Associate? blk reduce [2 3]
> == none
> >> Associate? blk reduce [[2 3]]
> == 5
>
> Aha! Unlike all other data types, an extra [] wrapper is require
> for block! -type keys? Well, let's check to see if the old
> merged-key/value-space bug is still present.
>
> >> Associate? blk reduce [[5]]
> ** Script Error: first expected series argument of type: series
> pair event money date object port time tuple any-function
> library struct event.
> ** Where: all [
> Value: select Block Key
> first Value
> ]
>
> So I can't even check to see if [[5]] (or [5]???) might have been
> legitimately used as a key?
>
> This version still uses find and therefore still "inherits" the
> buggy behavior when block! data are used as keys.
>
> -jn-
>
> [EMAIL PROTECTED] wrote:
> >
> > Here's an implementation for an Associative Data Store (ADS) that uses
only
> > two functions, doesn't require an object per ADS and can use any Rebol
value
> > as a key. Comment invited. Thanks to Gabriele for showing how to shorten
the
> > 'Associate? function.
> >
>
> [code snipped]
