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Re: Symbolic Links in Snow Leopard
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Re: Symbolic Links in Snow Leopard


  • Subject: Re: Symbolic Links in Snow Leopard
  • From: Joar Wingfors <email@hidden>
  • Date: Sun, 6 Sep 2009 17:17:11 -0700


On 6 sep 2009, at 14.26, Jens Alfke wrote:

   	NSLog(@"path = %@", [@"/etc" stringByStandardizingPath]);
results in
	path = /etc
when the result ought to be "/private/etc".


This is the documented behavior:

"Remove an initial component of “/private” from the path if the result still
indicates an existing file or directory (checked by consulting the file system)."



The same thing happens with a custom symlink I created, like "/ Code", which links to "/Volumes/snoog/Code":

	NSLog(@"path = %@", [@"/Code/Murky" stringByStandardizingPath]);
results in
	path = /Code/Murky


The documentation is less clear on this. It says:

	"If stringByStandardizingPath detects symbolic links in a pathname, the
	stringByResolvingSymlinksInPath method is called to resolve them."

...but also:

"Note that the path returned by this method may still have symbolic link components in it."

I would suspect that the first comment is incorrect, and that this method simply isn't attempting to resolve all symbolic links. The high level description of the method certainly doesn't give that impression:

"Returns a new string made by removing extraneous path components from the receiver."

Compare that with the high level description for - stringByResolvingSymlinksInPath:

"Returns a new string made from the receiver by resolving all symbolic links and standardizing path."


j o a r


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References: 
 >Re: Symbolic Links in Snow Leopard (From: Greg Guerin <email@hidden>)
 >Re: Symbolic Links in Snow Leopard (From: Jens Alfke <email@hidden>)

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