Sorting the contents of a list backwards

[minerale webforumsuser@macromedia.com]

Is it possible to sort the contents of a list backwards?
Put the values into an array the opposite way round?


thanks
m

[Andrew Morton]

No, but you could access it the other way round.

n=count(myList)
repeat with i=n down to 1
something(myList[i])
end repeat

Andrew

[Richie Bisset]

set n = myList.count

repeat while n > 0
add myList2, myList[n]
set n = n - 1
end repeat

this assumes that you are copying from myList to myList2

hth,
richie


On Mon, 1 Dec 2003 15:40:30 +0000 (UTC), "minerale"
[email]webforumsuser@macromedia.com[/email] wrote:

>Is it possible to sort the contents of a list backwards?
>Put the values into an array the opposite way round?
>
>
>thanks
>m
>

[ChiehAnLu webforumsuser@macromedia.com]

Director's array.sort() doesn't support sorting list backwards.

You have 2 other options which is comparable in speed.

1. You can take a look at [url]http://xtras.calu.us/articles1.php[/url] which has an article about sorting a list using the merge sort algorithm. With a little tweak on the > and < comparisons, and other minor changes, this will allow you to costomize your sorting algorithm.

2. call director's array.sort() on your list. then write a repeat loop that will traverse the list backward, and add each item into a new list. something like

nTotal = list.count
reverseList = []
repeat with i = ntotal down to 1
reverseList.addAt(list)
end repeat

Hope this helps

Chieh An Lu

[LukeWig]

On 2/12/03 2:40 AM, in article bqfnde$iqe$1@forums.macromedia.com,
"minerale" <webforumsuser@macromedia.com> wrote:

> Is it possible to sort the contents of a list backwards?
> Put the values into an array the opposite way round?

If speed is important, you can use the PRegEx_Reverse(aList) method provided
by the free PregEX Xtra ([url]www.openxtras.org[/url]) - its not shockwave safe,
though.

Luke