Why does GDataXMLDocument's nodesForXPath method fail?

[Zak]

Here's my code:

GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithXMLString:myXMLString options:0 error:&xmlParseError];

NSInteger XPathCount = [[doc nodesForXPath:@"//entry/title" error:nil] count];

NSInteger elementsForNameCount = [[doc.rootElement elementsForName:@"title"] count];

NSLog(@"XPath count: %i", XPathCount );

NSLog(@"elementsForName count: %i", elementsForNameCount );

The result is the XPathCount returns 0 and elementsForNameCount returns 1 despite the fact that they should BOTH be 1, since they're pointing to the same thing. Just to make sure, I've doubled checked the name of the root element with doc.rootElement.name and it is indeed "entry". Why is nodesForXPath not detecting the element like it should?

[Zak]

There's something wrong with my XML string...I tried a different XML string and it worked fine. I'll have to investigate further.

[Thomas Van Lenten]

On Sun, Jul 15, 2012 at 2:00 PM, Zak <zakd...@gmail.com> wrote:

There's something wrong with my XML string...I tried a different XML string and it worked fine. I'll have to investigate further.

We might have to see the xml for sure, but don't you might be running into the xml namespaces also, you might need to qualify the name in the once case since you are searching the whole document and not basing it from a node what might provide some implicite namespaces for your search.

TVL

 

On Sunday, July 15, 2012 2:17:36 AM UTC-5, Zak wrote:

Here's my code:

GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithXMLString:myXMLString options:0 error:&xmlParseError];

NSInteger XPathCount = [[doc nodesForXPath:@"//entry/title" error:nil] count];

NSInteger elementsForNameCount = [[doc.rootElement elementsForName:@"title"] count];

NSLog(@"XPath count: %i", XPathCount );

NSLog(@"elementsForName count: %i", elementsForNameCount );

The result is the XPathCount returns 0 and elementsForNameCount returns 1 despite the fact that they should BOTH be 1, since they're pointing to the same thing. Just to make sure, I've doubled checked the name of the root element with doc.rootElement.name and it is indeed "entry". Why is nodesForXPath not detecting the element like it should?

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