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Re: HFS Path by Reference
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Re: HFS Path by Reference


  • Subject: Re: HFS Path by Reference
  • From: Christopher Stone <email@hidden>
  • Date: Fri, 26 Oct 2012 00:56:46 -0500

On Sep 22, 2012, at 01:27, Christopher Stone <email@hidden> wrote:
When I assemble (non-temporary) scripts that reference files I always try to reference the file from a known location like so (for greater portability):

 set _file to alias ("" & (path to scripts folder) & "Applications:Safari:Temp_Safari.scpt")
______________________________________________________________________

Hey Folks,

I changed made a minor improvement such that the structure now looks like this:

 set _file to alias ((path to scripts folder as text) & "Applications:Safari:Temp_Safari.scpt")

Thanks to whomever it was for reminding me that as type class is a parameter of path to and avoids the possible traps of a coercion.

I've used this sort of notation for years but not uniformly.  Since clean installing Mountain Lion on a differently named hard drive I've had to do a bunch of fixes, so I'm converting every alias to this format to prevent extra work in future.

I use FastScripts rather than the SystemUIServer on my machine to work around the Lion/ML Finder-selection bug, since it's my primary Applescript-runner.

--
Best Regards,
Chris

------------------------------------------------------------------------------------------------
#       Author: Christopher Stone <email@hidden>
#      Created: 2012-09-22 : 00:36
#     Modified: 2012-10-26 : 00:23
#  Application: Finder
#      Purpose: Create path to file by reference; copy ref-string to the Clipboard.
# Dependencies: Uses only OSX components.
------------------------------------------------------------------------------------------------

try

  

  set expandedPathTo to {}
  set pathToSpec to {application support, applications folder, desktop, desktop pictures folder, documents folder, downloads folder, favorites folder, Folder Action scripts, fonts, help, home folder, internet plugins, keychain folder, library folder, modem scripts, movies folder, music folder, pictures folder, preferences, printer descriptions, public folder, scripting additions, scripts folder, shared documents, shared libraries, sites folder, startup disk, startup items, system folder, system preferences, temporary items, trash, users folder, utilities folder, workflows folder}

  

  repeat with i in pathToSpec
    set end of expandedPathTo to path to (get contents of i) from user domain
  end repeat

  

  set AppleScript's text item delimiters to return
  set expandedPathTo to text items of (expandedPathTo as text)

  

  tell application "SystemUIServer" # Work-around for (Mountain) Lion Finder selection bug.
    activate --» •••••
  end tell
  tell application "Finder"
    activate --» •••••
    set sel to selection as alias list
    if sel ≠ {} then
      set f to first item of sel as text
    end if
  end tell

  

  set AppleScript's text item delimiters to ":"
  set _len to (length of (text items of f))

  

  repeat with i from _len to 1 by -1
    set _path to ((text items 1 thru i of f) as text) & ":"
    if _path is in expandedPathTo then
      repeat with idx from 1 to (length of expandedPathTo)
        if (item idx of expandedPathTo) = _path then
          set refFldr to "path to " & (item idx of pathToSpec) as text
          set diskLocalRef to ("alias " & ("(" & "(" & refFldr & " as text) & ") & "\"" & (text items (i + 1) thru -1 of f) as text) & "\")"

          

          try
            run script diskLocalRef
          on error
            set refFldr to refFldr & " from user domain"
            set diskLocalRef to ("alias " & ("(" & "(" & refFldr & " as text) & ") & "\"" & (text items (i + 1) thru -1 of f) as text) & "\")"
            try
              run script diskLocalRef
            on error e
              error e
            end try
          end try

          

          set the clipboard to diskLocalRef

          

          return

          

        end if
      end repeat
    end if
  end repeat

  

on error e number n
  set e to e & return & return & "Num: " & n
  tell me to set dDlg to display dialog e with title "ERROR!" buttons {"Cancel", "Copy", "OK"} default button "OK"
  if button returned of dDlg = "Copy" then set the clipboard to e
end try

------------------------------------------------------------------------------------------------

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