[REBOL] Re: "piping" functions
From: gabriele::colellachiara::com at: 24-Nov-2005 12:40
Hi Jean-Francois,
On Thursday, November 24, 2005, 2:42:04 AM, you wrote:
>>>COPY/PART B BACK TAIL B
JFA> doesn't return the same thing as in:
>>>BACK TAIL B
JFA> why?
Because a SERIES holds a sequence of values (rebol values,
characters, and so on), AND a position in the sequence.
>> b: [1 2 3 4]
== [1 2 3 4]
>> mold/all b
== "[1 2 3 4]"
>> c: next b
== [2 3 4]
>> mold/all c
== "#[block![1 2 3 4]2]"
C and B share the same sequence of values, but they have a
different position. COPY, instead, creates a new sequence copying
from the source series.
I'll find many discussions on this list about series... :)
Regards,
Gabriele.
--
Gabriele Santilli <gabriele-rebol.com> --- http://www.rebol.com/
Colella Chiara software division --- http://www.colellachiara.com/
