Initial Googling indicates that there’s no built-in way to do regular expressions in an Objective-C Cocoa application.

So four questions:

1. Is that really true?

2. Are you kidding me?

3. Ok, then is there a nice open-source library you recommend?

4. What are ways to get close enough without importing a library, perhaps with the NSScanner class?

Solution:

I noticed that as of iOS 4.0 Apple provides a NSRegularExpression class:

http://developer.apple.com/iphone/library/documentation/Foundation/Reference/NSRegularExpression_Class/Reference/Reference.html