Example: I have a complex method that does a lot of stuff, and at the end I want to print a report with NSLog. NSLog wants a string, and then an arbitrary number of arguments. So lets say there are these possible values which can be logged:
A
B
C
D
E
F
It can happen that -for example- C and D are not logged, but the whole rest. How would I build up a dynamic thing which represent the value arguments for NSLog?
I choose NSLog for this question because it may be simpler aus NSPredicate and SUBQUERY. It seems impossible to build an NSPredicate format string dynamically while using an NSMutableString and appendFormat:… it results always in compile errors for the predicate. I guess that NSPredicate does something different with it’s provided format values than NSMutableString -appendFormat does.
So if there was a way to feed NSPredicate with:
1) a huge, dynamically created format string
2) an huge, dynamically created “list” of arguments”
that would be cool.
Your underlying problem shouldn’t be a problem. Just use
+predicateWithFormat:argumentArray:. What issue are you having building this up?