Ordered dictionary
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GHODictionary iOS
GHODictionary.xcodeproj
GHODictionary
GHODictionaryTests
.gitignore
GHODictionary.podspec
LICENSE
README.md

README.md

GHODictionary

Ordered dictionary. Enumeration occurs in the order that entries were added. If an item is overwritten, the order is unchanged.

For example,

#import <GHODictionary/GHODictionary.h>

GHODictionary *dict = [GHODictionary dictionary];
dict[@"key1"] = @(1);
dict[@"key2"] = @(2);
dict[@"key1"] = @(3);

for (id key in dict) ... // @"key1", @"key2" 

[dict allKeys]; // The same as enumeration, @"key1", @"key2"

[dict map:^(id key, id value) { ... }]; // (@"key1", @(3)), (@"key2", @(2))

If you want to overwrite a value and have it moved to the end of the ordering, then remove it and re-add:

dict[@"key1"] = nil;
dict[@"key1"] = @(3);
[dict allKeys]; // @"key2", @"key1"

Because it is ordered, it is also sortable:

dict[@"b"] = @(2);
dict[@"c"] = @(3);
dict[@"a"] = @(1);
[dict sortKeysUsingSelector:@selector(localizedCaseInsensitiveCompare:)];

[dict allKeys]; // @"a", @"b", @"c"

Podfile

pod "GHODictionary"

Cartfile

github "gabriel/GHODictionary"