Using valueForKeyPath on NSDictionary if a key starts the @ symbol?

Question

I want to use valueForKeyPath on my NSDictionary, but the problem is that one of the keys is a string that starts with the @ symbol. I have no cont

Answer 1

Just to update this old question a little...

The reason that these:

[dict valueForKeyPath:@"key1.@specialKey.key3"]
[dict valueForKeyPath:@"key1.@@specialKey.key3"]

...fail is that any "@" symbols in a key path are interpreted as being collection's operators as with:

[dict valueForKeyPath:@"key1.@sum.key3"] // returns the sum of all 'key3' values
[dict valueForKeyPath:@"key1.@avg.key3"] // returns the average of all 'key3' values

The nested key calls:

[[[dict objectForKey:@"key1"] objectForKey:@"@specialKey"] objectForKey:@"key3"]

... work because a single key is not processed as a key path.