Hi,
Sorry if this jump in seems impolite. I am a newbie here and haven't gone
through the FAQ yet. (Would someone please point me to it?)
I do remember that Director provides a getPos(inputList, searchItem)
function for linear or property lists which return the first position of the
"inputList" element that matches the "searchItem" or 0 when it finds no
match. This function is case sensitive.
So maybe instead of stepping through the list ourseleves, we can just let
the underlying C or Assembly code does it for us, as in following handler.
on addItem theList, theItem
if not ilk(theList, #linearList) then exit
itemPos = theList.getPos(theItem)
if itemPos then return itemPos
theList.add(theItem)
return theList.getPos(theItem)
end
Hope this might help and sorry again if it's rude or something to just jump
right in.
Thomas YEH
on 12/12/00 1:07 AM, John Erazo at [EMAIL PROTECTED] wrote:
> From: "Kerry Thompson" <[EMAIL PROTECTED]>
> Sent: Tuesday, December 12, 2000 1:28 PM
>
>> John, this line is your problem. You're setting inItem to the value of
>> gList[i]. Try this:
>>
>> global gList
>>
>> on addItem inItem
>> totalCount = gList.count
>> repeat with i = 1 to totalCount
>> if gList[i] = inItem then
>> alert "Item already exists."
>> return VOID
>> else
>> gList.add(inItem)
>> -- take out the exit repeat
>> end if
>> end repeat
>> end
>
> I didn't realized that I was really *putting*
> values to inItem because I never used
> the command set. Very clever !!!
>
> I tried this in the Message window..
>
> -- Welcome to Director --
>
> put gList
> -- ["Earth", "Jupiter", "Mars", "Venus", "Saturn"]
>
> set inItem = "Jupiter"
>
> put inItem = gList[2]
> -- 1
>
> put inItem = gList[3]
> -- 0
>
>
> Thanks again for all the help.
>
> cheers,
> John Erazo
>
>
>
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