ios - How do I apply an array of NSSortDescriptors in a case insensitive way? -

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because nshttpcookiestorage has awful limitations i'm implementing own , 1 of methods re-implement - (nsarray *)sortedcookiesusingdescriptors:(nsarray *)sortorder. gets array of nssortdescriptors , applies surprise, results tests seems indicate these sort descriptors applied in case insensitive fashion.

i couldn't find way apply nssortdescriptors in case insensitive way other setting selectors :@selector(caseinsensitivecompare:) since property selector read only, best managed this:

nsmutablearray *insensitivesortorder = [nsmutablearray array]; (nssortdescriptor* sorter in sortorder) {     [insensitivesortorder addobject: [nssortdescriptor sortdescriptorwithkey: sorter.key ascending:sorter.ascending selector:@selector(caseinsensitivecompare:)]]; }

is implementation correct? there better way achieve this?

one thing worries me i'm ignoring comparator property of nssortdescriptor.


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