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Core 2.5.2 - Less aggressive evaluation - howto evaluate ?

 [1/11] from: ingo::2b1::de at: 7-May-2002 11:34


Hi Carl, Rebols, it may be that I don't see the obvious, but given
>> a: context[ b: context[ c: 1]] >> f: func ['word] [print word] >> f a/b/c
a/b/c what do I have to do to get 'word evaluated? Thanks in advance, Ingo

 [2/11] from: cyphre:seznam:cz at: 7-May-2002 14:55


Hi Ingo and all, I hit this problem in January and Carl answered: "Not quite ready yet... but very soon you will be able to use DO to evaluate such paths." However it looks we still have to use for example:
>> z: to-path 'system/schemes
== system/schemes less agressive evaluation results:
>> type? z
== path!
>> type? do z
== path! I've found only two possibilities how to evaluate such paths:
>> type? do compose [(z)]
== object! or
>> type? first reduce compose [(z)]
== object! Anyone? regards, Cyphre

 [3/11] from: greggirwin:mindspring at: 7-May-2002 10:15


Hi Ingo, <<
>> a: context[ b: context[ c: 1]] >> f: func ['word] [print word] >> f a/b/c
a/b/c what do I have to do to get 'word evaluated?
>>
This seems to work, but I can't tell you *why* it works. :)
>> f: func ['word] [print reduce [word]]
--Gregg

 [4/11] from: rotenca:telvia:it at: 7-May-2002 19:39


Hi Cyphre,
> >> type? first reduce compose [(z)] > == object! > > Anyone? >> z: to-path 'system/schemes
== system/schemes 1)
>> type? first reduce [z]
== object! 2)
>> type? do func [x][x] z
== object! 3)
>> type? use [][z]
== object! 4)
>> type? do [z]
== object! View 1.2.1.3.1 --- Ciao Romano

 [5/11] from: cyphre:seznam:cz at: 7-May-2002 22:40


Hi Romano, ;-)
>> z: to-path 'system/schemes
== system/schemes 1)
>> type? first reduce [z]
== path! 2)
>> type? do func [x][x] z
== path! 3)
>> type? use [][z]
== path! 4)
>> type? do [z]
== path! View 1.2.5.3.1 and Core 2.5.2.3.1 regards, Cyphre ----- Original Message ----- From: "Romano Paolo Tenca" <[rotenca--telvia--it]> To: <[rebol-list--rebol--com]> Sent: Tuesday, May 07, 2002 7:39 PM Subject: [REBOL] Re: Core 2.5.2 - Less aggressive evaluation - howto evaluate ?

 [6/11] from: ingo:2b1 at: 7-May-2002 20:13


Cyphre wrote:
> Hi Ingo and all, > > I hit this problem in January and Carl answered: "Not quite ready yet... but > very soon you will be able to use DO to evaluate such paths."
That's what I tried first :-)
> However it looks we still have to use for example: >>>z: to-path 'system/schemes
<<quoted lines omitted: 16>>
> == object! > Anyone?
... not quite elegant, but shorter:
>> type? do form z
== object! Kind regards, Ingo

 [7/11] from: ingo:2b1 at: 7-May-2002 23:29


Hi Gregg, Gregg Irwin wrote:
> Hi Ingo, > <<
<<quoted lines omitted: 5>>
> This seems to work, but I can't tell you *why* it works. :) >>>f: func ['word] [print reduce [word]]
But by now I can sorta tell you why. This works, too: f: func ['word] [reduce reduce [word]] and 'print reduces its arguments, too. Kind regards, Ingo

 [8/11] from: ingo:2b1 at: 7-May-2002 23:39


Hi Romano, Romano Paolo Tenca wrote:
> Hi Cyphre, > >>>>type? first reduce compose [(z)] >>> >>== object! >> >>Anyone?
<...>
>>>type? first reduce [z] >> > == object! > > 2)
<...>
> View 1.2.1.3.1
Sorry, but we're talking about core 2.5.2, which would be view 1.2.5.4.2 and none of you're ideas work there ... Kind regards, Ingo

 [9/11] from: rotenca:telvia:it at: 8-May-2002 1:01


Hi Cyphre,
> >> z: to-path 'system/schemes > == system/schemes
<<quoted lines omitted: 7>>
> == path! > View 1.2.5.3.1 and Core 2.5.2.3.1
Gasp! Not a good situation in 2.5. In 2.5, I have only found:
>> type? first reduce reduce [z]
== object!
>> type? do reduce [z]
== object! If the path is global, one can also use
>> type? do mold z
== object!
>> type? do mold/only z
== object! --- Ciao Romano
> regards, > Cyphre
<<quoted lines omitted: 52>>
> [rebol-request--rebol--com] with "unsubscribe" in the > subject, without the quotes.
--- Ciao Romano

 [10/11] from: ammon:rcslv at: 10-May-2002 11:17


Ingo, I just tried that on Command:
>> a: context[ b: context[ c: 1]] >> f: func ['word] [print word] >> f a/b/c
1 I don't know if it is a problem with Core that is non-existant in Command. Enjoy!! Ammon A short time ago, Ingo Hohmann, sent an email stating:

 [11/11] from: ingo:2b1 at: 12-May-2002 16:47


Hi Ammon, Ammon Johnson wrote:
> I just tried that on Command: >>>a: context[ b: context[ c: 1]]
<<quoted lines omitted: 3>>
> 1 > I don't know if it is a problem with Core that is non-existant in Command.
As the subject was meant to express, we are talking about a change in the next beta Version of Rebol. So the phenomenon may only be seen in the new betas, not on any of the stable versions. Kind regards, Ingo

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