objective c - How to convert a classic HFS path into a POSIX path

Question

I am reading old files that still use HFS style paths, such as VolumeName:Folder:File.

I need to convert them into POSIX paths.

I do not like to do string replacement as it is a bit tricky, nor do I want to invoke AppleScript or Shell operations for this task.

Is there a framework function to accomplish this? Deprecation is not an issue.

BTW, here's a solution for the inverse operation.

Answer 1

The “reverse” operation of CFURLCopyFileSystemPath() is CFURLCreateWithFileSystemPath(). Similarly as in the referenced Q&A, you have create the path style from the raw enumeration value since CFURLPathStyle.cfurlhfsPathStyle is deprecated and not available. Example:

let hfsPath = "Macintosh HD:Applications:Xcode.app"
if let url = CFURLCreateWithFileSystemPath(nil, hfsPath as CFString,
                                           CFURLPathStyle(rawValue: 1)!, true) as URL? {
    print(url.path) // /Applications/Xcode.app
}