Any good ideas for doing a key-case-insensitive NSDictionary of
NSString to NSString? I have some HTTP headers I want to stick in a
dictionary and look up later. HTTP headers have case-insensitive keys.
I could upper, or lowercase the key before putting it in the
NSMutableDictionary, but that means I lose the original case of the
key (I probably shouldn't care but I hate throwing away information),
and any user of my class has to know to upper or lowercase the key
before looking it up, or else I don't expose the dictionary at all and
just give lookup methods which hide the details. That's a shame, I
wanted the user to have access too all the keys if they wanted it and
wanted to just make the NSDictionary available as a property.
I could make a case-insensitive string, but subclassing NSString
wasn't in my plans for Monday evening, or Tuesday and the user still
has to make the same NSCaseInsensitiveString() object to look up the
key.
I could make a case-insensitive version of NSMutableDictionary
which ... oh that's worse, forget I even said that.
I think I'm going to lower-case on insert and tell the user the
NSDictionary of headers has lower-case keys but .. is there something
obvious I missed?
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