Защо редът Click ndx . . . твърдението няма ефект в този Applescript?

Рутината "on switchDir" има за цел да намери всеки елемент от пътя, подаден като "директория", и да щракне върху него, така че пътят на директорията да се гмурне, за да достигне желаната крайна изходна директория.

При активиране на желания ред с мишката. както обикновено, той трябва да бъде щракнат два пъти, за да го изберете!

Това е кодът само на "on switchDir":

on switchDir(directory, appName, selectDefault, createIt)
    local compname, bootvolume
    set compname to get computer name of (system info)
    set bootvolume to get boot volume of (system info)
    if directory is equal to "~" then set directory to system attribute ("HOME")
    if directory starts with "~/" then set directory to (system attribute ("HOME")) & text 2 through -1 of (get directory)
    if not checkPathExists(directory) then
        if createIt then
            do shell script ("mkdir -p " & (POSIX path of directory))
        else
            return false
        end if
    end if
    if directory begins with "/" then
        set directory to bootvolume & (get directory)
    end if
    tell application "System Events" to tell (process "iTunes"'s front window)
        delay 1
        click pop up button 1 of group 1 -- selects the drop-down box above the directory listing
        set max to the count of menu items of menu 1 of pop up button 1 of group 1 -- number of items in the drop-down menu
        set ndx to 1
        repeat while ndx ≤ max
            if the title of group 1's pop up button 1's menu 1's menu item ndx as string is equal to compname then -- found the absolute top-level directory
                click group 1's pop up button 1's menu 1's menu item ndx - so choose it and go to next part of navigation
                exit repeat
            else -- keep looking
                set ndx to (get ndx) + 1
            end if
        end repeat
        if ndx > max then error "Never found " & compname
        set thePath to every item of my splitString(directory, "/") -- thePath equals every individual folder in the path's name in order
        repeat with dir in thePath
            set max to the (count of rows in outline 1 of scroll area 1 of splitter group 1 of group 1) -- max equals the number of rows in the "directory contents" list box
            log max
            set ndx to 2 -- row 1 is just the colum titles
            repeat while ndx ≤ max
                log the value of text field 1 of UI element 1 of row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 as string
                log the value of text field 1 of UI element 1 of row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 as string is equal to dir as string
                if the value of text field 1 of UI element 1 of row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 as string is equal to dir as string then -- this is the row we want!
                    log "found " & dir & " at row " & ndx as string
                    select row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 -- included to make sure the reference in the "click" statement is correct
                    click row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 -- supposed to "click" the desired folder name to choose it and dive deeper, BUT IT DOESN'T ACTUALLY DO THAT!
                    exit repeat -- apparently never executed because the loop keeps going past finding the desired directory's name and crashes at the first blank row!
                else
                    set ndx to (get ndx) + 1
                end if
                if ndx > max then error "Never found " & dir
             end repeat
        end repeat
    end tell
    error "success"
    return true
end switchDir

Грешката възниква в „on switchDir“, останалата част от кода е включена само така, че кодът да се изпълни под „Редактор на скриптове“. И двата „Щракнете ред ndx . . . .“ и операторът "exit repeat" след него очевидно никога не се изпълняват, тъй като цикълът продължава да работи след регистриране на "found". . . . и следователно се срива на първия празен ред в списъчното поле. Намереното (с кавичките) може да се използва като дума за търсене за намиране на кода.

Следва пълният, изпълняваем код на приложението:

on splitString(theString, theDelimiter)
    set oldDelimiters to AppleScript's text item delimiters
    set AppleScript's text item delimiters to theDelimiter
    set theArray to every text item of theString
    set AppleScript's text item delimiters to oldDelimiters
    return theArray
end splitString

on checkPathExists(thePath)
    if thePath is equal to "~" then set thePath to system attribute ("HOME")
    if thePath starts with "~/" then set thePath to (system attribute ("HOME")) & text 2 through -1 of (get thePath)
    try
        POSIX file thePath as alias
        return true
    on error
        return false
    end try
end checkPathExists

on switchDir(directory, appName, selectDefault, createIt)
    local compname, bootvolume
    set compname to get computer name of (system info)
    set bootvolume to get boot volume of (system info)
    if directory is equal to "~" then set directory to system attribute ("HOME")
    if directory starts with "~/" then set directory to (system attribute ("HOME")) & text 2 through -1 of (get directory)
    if not checkPathExists(directory) then
        if createIt then
            do shell script ("mkdir -p " & (POSIX path of directory))
        else
            return false
        end if
    end if
    if directory begins with "/" then
        set directory to bootvolume & (get directory)
    end if
    tell application "System Events" to tell (process "iTunes"'s front window)
        delay 1
        click pop up button 1 of group 1 -- selects the drop-down box above the directory listing
        set max to the count of menu items of menu 1 of pop up button 1 of group 1 -- number of items in the drop-down menu
        set ndx to 1
        repeat while ndx ≤ max
            if the title of group 1's pop up button 1's menu 1's menu item ndx as string is equal to compname then -- found the absolute top-level directory
                click group 1's pop up button 1's menu 1's menu item ndx - so choose it and go to next part of navigation
                exit repeat
            else -- keep looking
                set ndx to (get ndx) + 1
            end if
        end repeat
        if ndx > max then error "Never found " & compname
        set thePath to every item of my splitString(directory, "/") -- thePath equals every individual folder in the path's name in order
        repeat with dir in thePath
            set max to the (count of rows in outline 1 of scroll area 1 of splitter group 1 of group 1) -- max equals the number of rows in the "directory contents" list box
            log max
            set ndx to 2 -- row 1 is just the colum titles
            repeat while ndx ≤ max
                log the value of text field 1 of UI element 1 of row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 as string
                log the value of text field 1 of UI element 1 of row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 as string is equal to dir as string
                if the value of text field 1 of UI element 1 of row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 as string is equal to dir as string then -- this is the row we want!
                    log "found " & dir & " at row " & ndx as string
                    select row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 -- included to make sure the reference in the "click" statement is correct
                    click row ndx of outline 1 of scroll area 1 of splitter group 1 of splitter group 1 of group 1 -- supposed to "click" the desired folder name to choose it and dive deeper, BUT IT DOESN'T ACTUALLY DO THAT!
                    exit repeat -- apparently never executed because the loop keeps going past finding the desired directory's name and crashes at the first blank row!
                else
                    set ndx to (get ndx) + 1
                end if
                if ndx > max then error "Never found " & dir
             end repeat
        end repeat
    end tell
    error "success"
    return true
end switchDir

set directory to "/Users/bryandunphy/Music"
try
    tell application "iTunes" to quit
end try
tell application "System Events"
    key down option
    tell application "iTunes" to activate
    key up option
    repeat until process "iTunes" exists
        delay 0.5
    end repeat
    click process "iTunes"'s window 1's button 2
    my switchDir(directory, "iTunes", false, true)
    delay 2
    set libraryName to value of text field "Save As:" of window "New iTunes Library" of process "iTunes"
    delay 2
    click process "iTunes"'s window "New iTunes Library"'s button "Save"
end tell
return libraryName

Всяка идея за причината за грешката и/или как да я поправите ще бъде високо оценена.