[REBOL] Re: Series manipulation Help
From: SunandaDH:aol at: 9-Nov-2004 14:33
Charles:
> but I think I will run into problems if the target-id is non-unique.
Then I'd apply the following hack:
lst: ["Charlie" 11111 "Peter" 239823 "Sam" 11111 "Tiana" 92348]
target: "Sam"
target-id: select lst target
if not none? target-id [
remove at lst 1 + index? find lst target
alter lst target
append lst target
append lst target-id
]
This code is "inefficient" in that in searches lst three times (select + find
+ alter). You could attempt to "optimise" it by saving the initial position
in a variable. But unless you are intending to execute it a zillion times a day
on megabyte long blocks, it's hardly worth the effort.
Should work if you have duplicate target-ids and/or duplicate targets (more
than one "sam").
Likely to go astray if a target can be the same as a target-id (not currently
a problem as they are in different domains -- string! vs number!)
Sunanda.
