macos - 如何使用变量获取 'quoted form of'？

Question

我一直致力于创建一个迭代文件的脚本，并且能够从聚光灯元数据中获取“关键字”元数据。在从 stackoverflow 上的其他人那里获得帮助时，我已经能够获取元数据，但无法迭代文件。

tell application "Finder"
set sourceFolder to folder POSIX file "/Users/jdavidson/Desktop/Upload/Birds and Butterflies/HighRes/"
set theFiles to files of sourceFolder
set inputPath to "/Users/jdavidson/Desktop/Upload/Birds and Butterflies/"

end tell

repeat with afile in theFiles
set filename to name of afile
set fname to text 1 thru ((offset of "." in filename) - 1) of filename
set pathVAR1 to "/Users/jdavidson/Desktop/Upload/Birds and Butterflies/HighRes/"
set pathVAR2 to pathVAR1 & filename
--set pathVAR3 to "\"" & pathVAR2 & "\""
set pathVAR3 to quoted form of pathVAR2

display dialog pathVAR3

set myvar to do shell script "mdls -name kMDItemKeywords " & pathVAR3

--Substring's the data to between "(" and ")"--
--set var1 to var1 + 1
set var2 to ((offset of ")" in myvar) - 1)
--set var2 to var2 - 1
set myKeywords to ((characters var1 thru var2 of myvar) as string)
display dialog myKeywords

end repeat

可以正常工作并且不会出错的代码如下:

set myvar to do shell script "mdls -name kMDItemKeywords " & quoted form of "/Users/jdavidson/Desktop/Upload/Birds and Butterflies/To Process/Floral/RF78-3.tif"
set var1 to ((offset of "(" in myvar) + 1)
--set var1 to var1 + 1
set var2 to ((offset of ")" in myvar) - 1)
--set var2 to var2 - 1
set myKeywords to ((characters var1 thru var2 of myvar) as string)
display dialog myKeywords

问题是能够以“引用形式”将变量传递给 shell

Answer 1

更容易将文件夹中的文件作为别名列表获取，并从别名中获取 POSIX 路径。

文本形式的桌面路径是当前用户桌面的 (HFS) 路径

set sourceFolder to (path to desktop as text) & "Upload:Birds and Butterflies:HighRes:"
tell application "Finder"
    set theFiles to files of folder sourceFolder as alias list
end tell

repeat with aFile in theFiles
    set myvar to do shell script "mdls -name kMDItemKeywords " & quoted form of POSIX path of aFile
    --- ...
end repeat