Re: NSData to plist
Re: NSData to plist
- Subject: Re: NSData to plist
- From: Drew McCormack <email@hidden>
- Date: Fri, 6 Dec 2002 09:16:47 +0100
On Friday, December 6, 2002, at 04:57 AM, crucial felix wrote:
Hey y'all,
I'm trying to open my iTunes xml library. easily viewable in
PropertyList editor, the root object is a Dictionary.
I swiftly got it as an NSData, but now i'm trying to figure out how to
get it out of that.
i try using this: NSPropertyListSerialization method:
+ (id)propertyListFromData:(NSData *)data
mutabilityOption:(NSPropertyListMutabilityOptions)opt
format:(NSPropertyListFormat *)format errorDescription:(NSString
**)errorString
NSData *data = [NSData
dataWithContentsOfFile:[@"~/Music/iTunes/iTunes Music Library.xml"
stringByStandardizingPath]];
NSDictionary *plist = [NSPropertyListSerialization
propertyListFromData:data
mutabilityOption:NSPropertyListMutableContainersAndLeaves
format:NSPropertyListXMLFormat_v1_0
errorDescription:@"blah"];
and get a:
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000064
Thread 0 Crashed:
#0 0x9013f354 in _CFPropertyListCreateFromXMLData
#1 0x90180484 in CFPropertyListCreateFromStream
#2 0x90844650 in +[NSPropertyListSerialization
propertyListFromData:mutabilityOption:format:errorDescription:]
the errorDescription is obviously wrong and is possibly the trouble.
the java version specifies a String[]
i will say that the docs need an extra sentence there.
trying:
NSDictionary *plist = [NSKeyedUnarchiver
unarchiveObjectWithFile:[@"~/Music/iTunes/iTunes Music Library.xml"
stringByStandardizingPath]];
gives:
[NSKeyedUnarchiver initForReadingWithData:]: incomprehensible archive
version (-1)
help greatly appreciated.
-felix
Don't know if this would work for you, but I did this recently by first
initializing a string with the NSData, and then calling the NSString
method "propertyList". When you create the string, you do have to pass
through a format flag for the string.
Hope this helps,
Drew
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...
... ... ... ... ... ... ... ...
Dr. Drew McCormack
Trade Strategist (www.trade-strategist.com)
Trading simulation software for Mac OS X
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