[REBOL] Re: REP Path! as Block!
From: ryanc::iesco-dms::com at: 10-May-2001 10:06
How about support for paren! when creating a path to do as you mention?
>> a: [ aa [ aaa 1 bbb 2 ] bb [ aaa 22 ] ]
== [aa [aaa 1 bbb 2] bb [aaa 22]]
>> x: 'aa
** Syntax Error: Invalid path -- a/
** Near: (line 1) a/(x)
>> p: to path! [a (x)]
** Script Error: Invalid path value: x
** Where: halt-view
** Near: p
This works, but its not as much fun...
>> p: to path! [a :x]
== [aaa 1 bbb 2]
You can always get jiggy with it...
>> f: func  [random 2]
>> funky-path: func [blk] [to-path reduce blk]
>> fp: funky-path ['a x f]
Side note: When I set 'fp, it returned the path, and not the value of it. Makes it tricky
to work with.
It would be nice, as long as there is not much of a speed penalty, as I dont see it as
Andrew Martin wrote:
> A path! datatype could act in much the same way as a block, except that the
> "contents" are executed immediately (instead of at a later date or not at
> A block! datatype is this:
> "[" optional Rebol-Values separated with spaces "]"
> For example:
> [Test: func [Arg] [print join Arg "on end"] Test "Text"]
> I believe that a path! datatype/value could be like this:
> optional ":" Rebol-Value "/" Rebol-Value "/" and so on; followed by
> optional ":"
> and be evaluated immediately.
> For example:
> Test:/func/[Arg]/[print join Arg "on end"]/Test/"Text"
> The above is a fairly meaningless example, but provides a interesting
> possibility for the path! data-type.
> Andrew Martin
> ICQ: 26227169 http://members.nbci.com/AndrewMartin/
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