[Nebagakid]

so, i set up this little script to get every name of every track's album and just show them back in dialogs, one after another. I want the list but I also want it to remove repeats and nulls...how can I?
[php]
tell application "iTunes"
set item_list to the album of every track of playlist 1 as list
repeat with i from 1 to number of items in the item_list
set this_item to item i of the item_list
display dialog this_item
end repeat
end tell
[/php]

EDIT: Trying out the PHP vCode, whatever thing

[Camelot]

Typically you need to iterate through the list manually eliminating duplicates and nulls.

Fortunately, the process isn't that hard. The following script adds a 'FilterList' procedure that eliminates empty and duplicate entries. Simply run the full list through the filter and you're all set:

Code:
on filterList(theList)
  -- initialize a new list variable
  set newList to {}
  --loop through the list
  repeat with anItem in theList
    -- coerce each list item to a string
    set thisItem to anItem as string
    -- check it's not empty
    if thisItem is not
 "" then
    -- and check it's not already in the output list
      if thisItem is not in newList then
        -- if we get here, it's a new, unique item, so add it to the list
        set newList to newList & {thisItem}
      end if
    end if
  end repeat
  -- now return the truncated list
  return newList
end filterList

tell application "iTunes"
  set item_list to the album of every track of playlist 1 as list
  set item_List to filterList(item_list)
  repeat with this_item in item_list
    display dialog this_item
  end repeat
end tell

Note I've also simplified the display dialog code to use a 'repeat with this_item in item_list' syntax. AppleScript will automatically iterate through a list assigning each item to a variable, saving you the bother of having to do it yourself.

(corrected layout formatting)

[Nebagakid]

Thanks, I found some other scripts too, thanks again!

[Nebagakid]

It says that album_list is not defined, anyone help me please?
[PHP]
tell application "iTunes"
tell source "Library"
tell playlist "Library"
set the master_list to the album of every track
set album_list to {}
repeat with i from 1 to the count of the master_list
set this_album to (item i of the master_list) as string
if the album_list does not contain this_album and ¬
this_album is not "" then
set the end of the album_list to this_album
end if
end repeat
end tell
end tell
end tell
[/PHP]

[Chuckit]

Originally posted by Nebagakid:
It says that album_list is not defined, anyone help me please?
[PHP]
tell application "iTunes"
tell source "Library"
tell playlist "Library"
set the master_list to the album of every track
set album_list to {}
repeat with i from 1 to the count of the master_list
set this_album to (item i of the master_list) as string
if the album_list does not contain this_album and ¬
this_album is not "" then
set the end of the album_list to this_album
end if
end repeat
end tell
end tell
end tell
[/PHP]

I just copied and pasted the above code into Script Editor, and it worked fine. So I have no idea what your problem is. Is there anything around it that might be screwing it up?

[Nebagakid]

yeah, it works really well for me in script editor, it does some weird thing though where it says it can not get the total result...or something like that::::

[PHP]
No result was returned from some part of this expression. (-2763)
[/PHP]

so, why aint it working in apple script studio...hmmmmmm?