NSAttributedStringAdditions
Crowd-sourced documentation and tutorials by the Cocoa developer community
This defines extra functions to the FoundationKit class NSAttributedString, especially character and document attribute strings are defined here
See documentation at Apple
http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/ObjC_classic/Classes/NSAttributedString_index.html
Is NSAttributedStringAdditions thread safe?
