Objective-C DOM XML parser for iPhone

Question

Hello guys I'm looking for a way on the iPhone to parse an XML document using DOM. I have been using SAX with NSXMLParser but now I really want a DOM tree (or anything that can quickly translate the XML document into an NSDictionary)
Thanks for any help

Answer 1

If you want to use libxml2 with an Objective-C front without SAX events, take a look at this useful set of wrapper functions.

You issue an XPath query to your XML document object and get back Foundation class objects: NSArray, NSString, and NSDictionary, e.g.:

NSArray *queriedBuckets = PerformXMLXPathQuery(responseData, @"//*[local-name()='Buckets']/*[local-name()='Bucket']");

These functions help merge the speed of libxml2 with the readability and usability of Objective-C code.

Answer 2

Unfortunately, NSXMLDocument (which does what you're asking) does not exist on the iPhone. You may have to roll your own parser using libxml2, or try something like TouchXML or KissXML.

Answer 3

I suggest looking at the Google Data API for Objective-C (iPhone) at http://code.google.com/p/gdata-objectivec-client/

In particular, look at these files which define the GDataXMLNode class:

http://gdata-objectivec-client.googlecode.com/svn/trunk/Source/XMLSupport/