me2day/libPhoneNumber-iOS — pull request #16 by stonyw (2013-07-05 09:22:57+00:00)
Title: Handle char @ when normalize any strings, eg email

valueForKey is designed for KV Coding. It handles some special path start with "@". It throw error when key is "@" only.
objectForKey is better than valueForKey to finish the replacement for single char mapping.