[REBOL] En Masse block operations
From: tim:johnsons-web at: 16-Oct-2001 9:25
Hello All:
I would like to apply the same operation to all members of a nested block.
;Example:
blk: [[1 2 3 4] [5 6 7 8] [9 10 11 12] [13 14 15 16 17] "one"]
blk: do-all blk next ; set all members to next element
;result sought:
>>[[2 3 4] [6 7 8] [10 11 12] [14 15 16 17] "ne"]
blk: do-all blk head ; set all members to head
; result sought:
>>[[1 2 3 4] [5 6 7 8] [9 10 11 12] [13 14 15 16 17] "one"]
; I've started by this simple function, which is not doing just
; what I want:
REBOL[]
do-all: func[blk[block!] ][ ;cmd[word!]
foreach member blk[
if series? member[
member: next member
print mold member
]
]
blk
]
test: [[1 2 3 4] [5 6 7 8] [9 10 11 12] [13 14 15 16 17] "one"]
print mold do-all test
;and I get
>> do %sample.r
Script: "Untitled" (none)
[2 3 4]
[6 7 8]
[10 11 12]
[14 15 16 17]
ne
[[1 2 3 4] [5 6 7 8] [9 10 11 12] [13 14 15 16 17] "one"]
TIA
--
Tim Johnson <[tim--johnsons-web--com]>
http://www.johnsons-web.com
