They are noted in the NSExpression.h header with API to create them and a comment to their functionality.
- Ben > Is the use of SUBQUERY() documented anywhere? The only mention I've seen of > it is in the reserved keywords section of the Predicate Format String Syntax > guide. > > Dave > > On Apr 2, 2010, at 3:42 PM, Ben Trumbull wrote: > >> NSComparisonPredicate* exprPred = (NSComparisonPredicate*)[NSPredicate >> predicateWithFormat:@"SUBQUERY(self, $key, %...@.$key != nil) == 0", obj]; >> NSExpression* expr = [exprPred leftExpression]; >> NSLog(@"expression subquery results = %@", [expr >> expressionValueWithObject:keys context:nil]); _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
