How to do a natural sort on an NSArray?

Posted by Cory Imdieke on Stack Overflow See other posts from Stack Overflow or by Cory Imdieke
Published on 2010-05-17T02:12:48Z Indexed on 2010/05/17 2:20 UTC
Read the original article Hit count: 329

Filed under:

cocoa

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objective-c

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sorting

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iphone

I've got an array of objects, and I need them sorted by their "title" key. It's currently working, though it's using an ASCII sort instead of a natural sort. The titles are filenames, so they look like this:

file1
file2
file3
...
file10
file11
file12

I'm getting, as you would expect:

file1
file10
file11
file12
file2
file3
...

Does anyone know if there is a way built-in to the NSArray sorting functionality to get this natural sorting as opposed to the alphabetical sort? I found some generic algorithms, but I was hoping for something built-in...

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