Re: Making a String from a non-NSString

• Subject: Re: Making a String from a non-NSString
• From: Shawn Erickson <email@hidden>
• Date: Tue, 27 Jan 2004 08:53:28 -0800

Hi!

This problem is a little hard to explain, so please bear with me :-)
I recently stumbled over the XMLTree-class by R.Harder (iharder.sourceforge.net), which is a simple objective-c wrapper for the CoreFoundation XML-functions. It works fine so far, but I run into problems when I want to compare elements. Here's the situation:

This is a part of my XML-file (yes, it's iPhoto's AlbumData.xml :-))

<key>Archive Path</key>
<string>/Users/johndoe/Pictures</key>

And here is the code-part (XMLTree is defined as a subclass of NSObject):

XMLTree* myTree;
[ . . . ]

NSLog(@"%@", [ myTree childAtIndex: 0 ]); // This produces an output of the correct value "Archive Path"

NSString* currentKey = (NSString*) [ myTree childAtIndex:0]);
NSLog(@"%@", currentKey); // This also produces an "Archive Path"

if ([ currentKey isEqualToString:@"Archive Path"]) // THIS, however, produces a runtime error "[ XMLTree -isEqualToString:] selector not found"


Long story short: -childAtIndex: returns another XMLTree, but obviously it also holds the correct value (see the NSLogs above). Since there is no method in the class for explicitly returning the element value, is there ANY way I can get my comparison working?

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