libxml2 xml parsing issue - ios

Question

I have an xml file which i create myself.
<?xml version='1.0' encoding='utf-8' ?>
<Root>
<ChildElements>
<type name='xx' attr='false'>
<child id='1' regex='^[0-9]{11}$'>
<BBB>
<node1 name='aaa' regex='\w{5}'/>
<node2 name='bbb' regex='\w{3}'/>
</BBB>
</child>
<child>
.
.
.
</child>
</type>
</ChildElements>
</Root>
Something like this. I want to parse it to xml document object and iterate through its nodes, I'm using libxml2 for ios.
NSString *xmlPath = [[NSBundle mainBundle] pathForResource:#"xmlcontent" ofType:#"xml"];
NSData *xmlData = [NSData dataWithContentsOfFile:xmlPath];
NSString* xml = [[NSString alloc ] initWithData:xmlData encoding:NSUTF8StringEncoding];
int size=[xml lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
xmlDocPtr docptr=xmlParseMemory([xml UTF8String], size);
but in docptr object there is only one node, which is Root node, and when I try to get Root node child nodes it returns an empty node which name is #"text".
NSXMLParser easily parses the same XML, but I don't know how to create a document and iterate through nodes by using NSXMLParser.

Answer 1

maybe the error is, that your XML isn't valide:
<?xml version='1.0' encoding='utf-8' ?>
<Root>
<ChildElements>
<type name='xx' attr='false' />
<child id='1' regex='^[0-9]{11}$'>
<BBB>
<node1 name='aaa' regex='w{5}' />
<node2 name='bbb' regex='w{3}' />
</BBB>
</child>
</ChildElements>
</Root>
you can validate your XML with an online XML Validator