Re: Looking for an Ordered Dictionary
Re: Looking for an Ordered Dictionary
- Subject: Re: Looking for an Ordered Dictionary
- From: Brian Webster <email@hidden>
- Date: Tue, 9 Apr 2002 09:33:56 -0500
On Tuesday, April 9, 2002, at 08:37 AM, cocoa-dev-
email@hidden wrote:
I'm seeking some technique to hold a set of key/value pairs but
keep them IN ORDER. I would use NSDictionary but the keys are
not returned/stored in the order in which they are added - it is
an unordered collection.
I have a similar setup in one of my apps, and the way I did it
was to have an object that holds both an NSArray and an
NSDictionary. Whenever a key/value pair is stored, I put the
key/value pair into the dictionary as normal and then insert the
key into the array in sorted order. That way I can iterate the
sorted array and get back the key/value pairs from the
dictionary in sorted order. There may be some open code
somewhere that does this, but it's not very hard to implement.
--
Brian Webster
email@hidden
http://homepage.mac.com/bwebster
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