I can't figure out how to handle key-paths that contain spaces, in NSPredicate
format strings. There doesn't seem to be any way to escape the space character.
For example, I've got a data set parsed from my iTunes library, so every item
has a "Total Time" key. How do I write a format string involving this key? I've
tried:
'Total Time' < 60000
Total\ Time < 60000
Total\x20Time < 60000
None of these work. The first treats 'Total Time' as a string literal not a
key-path, and the others don't parse at all (even though the Predicate Format
String Syntax reference says \x is supported.)
I know I can use %K and then plug @"Total Time" in as a parameter, but in this
case I want the user to be able to type in these format strings, so that's not
going to work.
—Jens
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