Re: Properly comparing file NSURLs for equality?
Re: Properly comparing file NSURLs for equality?
- Subject: Re: Properly comparing file NSURLs for equality?
- From: Mike Abdullah <email@hidden>
- Date: Sat, 28 May 2011 01:10:25 +0100
On 28 May 2011, at 00:57, Douglas Davidson wrote:
>
> On May 27, 2011, at 4:45 PM, James Walker wrote:
>
>> On 5/27/2011 4:35 PM, Jens Alfke wrote:
>>
>>> Comparing paths has its own set of pitfalls: even if you’re not
>>> concerned about symlinks, there’s case-insensitivity to deal with. I’m
>>> not sure what the best way is to deal with that. You could canonicalize
>>> each path; or you could convert each URL to an FSRef and then compare
>>> those for equality.
>>
>> If you were going to compare FSRefs (FSCompareFSRefs), you wouldn't need to convert to a path, just use CFURLGetFSRef via toll-free bridging.
>
> It shouldn't be necessary to go to FSRefs for this now that we have resource properties such as NSURLFileResourceIdentifierKey/kCFURLFileResourceIdentifierKey. For other usages of FSRefs, consider file reference URLs instead.
I can't find these documented – link?
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