Trying to parse XML - ios

Question

I am trying to parse the following XML File:
However when I parse it:
-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
currentElementName = elementName;
}
-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
if ([currentElementName isEqualToString:#"link"]) {
NSLog(#"Link: %#",string);
}
}
I get the following NSLOG:
Link: http://www.flickr.com/photos/114014058#N06/
Link:
Link: http://www.flickr.com/photos/114014058#N06/
Link:
Link:
Link: http://www.flickr.com/photos/114014058#N06/11865861164/
Link:
As you see the URL I want is not appearing and there is a bunch of empty URLs.
Why?
Thank you!
EDIT:
I tried Rhythmic Fistman's answer but all I get is:
link is (null)

Answer 1

Try the didStartElement callback.
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict;
When elementName is #"link" your url should be in attributeDict[#"href"].
e.g.
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
if([elementName isEqualToString:#"link"]) {
NSLog(#"link is %#\n", attributeDict[#"href"]);
}
}

Answer 2

You'll find element starts in didStartElement, so change state there. When you get foundCharacters, check that you are in the right state, then the characters there are what you want.
-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
// assume currentElementName starts out nil. if we find "generator", enter
// "generator" state. if we're in "generator" state and find "link" then enter
// "link" state, which is our target state
if ([currentElementName isEqualToString:#"generator"] && [elementName isEqualToString:#"link"])
currentElementName = #"link";
// now we're in the tag we want to be in. get attributes from
// the attributeDict, if you need the tag body, check for "link" state in foundChars
NSLog(#"here are the attributes we want %#", attributeDict);
else if ([elementName isEqualToString:#"generator"]) {
currentElementName = #"generator";
}
}