iOS-Subscripting

Headers to provide subscripting support. The implementations are provided by libarclite.

This is an interim solution to subscripting; it will almost certainly not be necessary when the iOS 6 SDK is released (even for building to iOS 5).

Contents

• Foundation+sdfsubscripts.h: The header file that adds subscripting support to NSArray, NSMutableArray, NSDictionary and NSMutableDictionary.
• NSUserDefaults+sdfextrasubs.h and NSUserDefaults+sdfextrasubs.m: A demonstration of how to patch an existing class to support subscripts.

Usage

1. Add Foundation+sdfsubscripts.h to your project.
2. #import "Foundation+sdfsubscripts.h" Ideally, from your prefix.
3. Examine the technique used in NSUserDefaults+sdfextrasubs.h and NSUserDefaults+sdfextrasubs.m. You probably don't want to use this file directly, however.

License

For this? Free and public domain. Do whatever you want with it. Enjoy.

Future

• Add support for any other classes swizzled by libarclite to Foundation+sdfsubscripts.h. I don't have a list, so there may be others.
• Add a more useful swizzling category.

See also

• Modern Objective-C with iOS 5
• Using subscripting with Xcode 4.4 and iOS 4.3