Accessing nested Blocks

[1/4] from: jthomas:apollo:evo:it at: 3-Nov-2000 16:29

Hello, having this myblock: [[one [1 2 3]][two [4 5 6]][three [7 8 9]]] I can extract a value and put it in myvalue: myblock/1/2/3 print myvalue

>> 6

but if I change myvalue: the result is only local, not global to myblock, so is there a way to assign the content of myblock, like a pointer, to the variable, so that myvalue: 12 will change the content in myblock/1/2/3 ? Thanks ;-) Bye -- Joachim Thomas - [jthomas--mail--evo--it] - ICQ 18088459 Amiga1260+Amiga4060PPC604 Member of ATO (italian Division) http://bilbo.di.unipi.it/~ato-it & Phoenix Consortium Concerti - Gruppi Musicali & Locali http://concertitalia.supereva.it Virtual PHOTO Gallery http://www.terzomercato.com/free/jt_home It took them 15 years to catch up...Now they never will. -- Bill McEwen/T-Shirt Slogan at AmiWest

[2/4] from: al::bri::xtra::co::nz at: 4-Nov-2000 8:07

Joachim Thomas wrote:

> having this > > myblock: [[one [1 2 3]][two [4 5 6]][three [7 8 9]]] > > I can extract a value and put it in > > myvalue: myblock/1/2/3 > but if I change myvalue: the result is only local, not global to myblock,

> is there a way to assign the content of myblock, like a pointer, to the

variable...

>> myblock: [[one [1 2 3]][two [4 5 6]][three [7 8 9]]]

== [[one [1 2 3]] [two [4 5 6]] [three [7 8 9]]]

>> myvalue: myblock/1/2/3

== 3

>> print myvalue

>> myblock/1/2/3: "I'm a new value!"

== [1 2 "I'm a new value!"]

>> myblock

== [[one [1 2 "I'm a new value!"]] [two [4 5 6]] [three [7 8 9]]] Andrew Martin Caution: Only Rebol spoken here... ICQ: 26227169 http://members.nbci.com/AndrewMartin/

[3/4] from: g:santilli:tiscalinet:it at: 4-Nov-2000 13:51

Hello Joachim! On 03-Nov-00, you wrote: JT> is there a way to assign the content of myblock, like a JT> pointer, to the variable, so that JT> myvalue: 12 JT> will change the content in myblock/1/2/3 ? A way to do it might be:

>> myblock: [[one [1 2 3]][two [4 5 6]][three [7 8 9]]]

== [[one [1 2 3]] [two [4 5 6]] [three [7 8 9]]]

>> pointer: at myblock/1/2 3

== [3]

>> change pointer 5

== []

>> myblock

== [[one [1 2 5]] [two [4 5 6]] [three [7 8 9]]] But the real question is, why do you need to do so? Regards, Gabriele. -- Gabriele Santilli <[giesse--writeme--com]> - Amigan - REBOL programmer Amiga Group Italia sez. L'Aquila -- http://www.amyresource.it/AGI/

[4/4] from: jthomas:apollo:evo:it at: 5-Nov-2000 13:51

Hello Gabriele On 04-Nov-00, Gabriele Santilli wrote:

>GS Hello Joachim! >GS

<<quoted lines omitted: 12>>

>GS == [[one [1 2 3]] [two [4 5 6]] [three [7 8 9]]] >GS>> pointer: at myblock/1/2 3

thanx ... I didn't consider the word AT.... :-/

>GS == [3] >GS>> change pointer 5

<<quoted lines omitted: 3>>

>GS >GS But the real question is, why do you need to do so?

could be a more readable way to write accesses to data in little databases.. Regards -- Joachim Thomas - [jthomas--mail--evo--it] - ICQ 18088459 Amiga1260+Amiga4060PPC604 Member of ATO (italian Division) http://bilbo.di.unipi.it/~ato-it & Phoenix Consortium Concerti - Gruppi Musicali & Locali http://concertitalia.supereva.it Virtual PHOTO Gallery http://www.terzomercato.com/free/jt_home Amiga makes IT possible, Mac makes it expensive and Win95 just makes Bill Gates rich... -- Christoph Krakowski

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