Sort NSFileManager Results

Ref

Sorting strings like Finder

The following example shows how you can compare strings to order them in the same way as they’re presented in Finder. First, define a sorting function that includes the relevant comparison options (for efficiency, pass the user's locale as the context—this way it's only looked up once).

int finderSortWithLocale(id string1, id string2, void *locale)

{

static NSStringCompareOptions comparisonOptions =

NSCaseInsensitiveSearch | NSNumericSearch |

NSWidthInsensitiveSearch | NSForcedOrderingSearch;

NSRange string1Range = NSMakeRange(0, [string1 length]);

return [string1 compare:string2

options:comparisonOptions

range:string1Range

locale:(NSLocale *)locale];

}