How do I do execute a command expression from a string?
e.g.,
NSString *string = [NSString stringWithFormat:@"NSLog(@\"hello\");"];
Now what?
Generally, you don't.
At least, not on a user system.
On a system with developer tools, you could fire up the C compiler and
linker, compile the code, dynamically link, it then call into it
(discounting about a bazillion details along that route).
