Parsing repeating nested xml with NSXMLParser?

[pufftissue]

Hi,

I have a question about parsing the following structure. As you can see, categories is a repeating nested element. But I can't figure out how to parse this with NSXML Parser.

Can someone help me figure out how to convert this xml into a drill-down table view that lists categories? So in other words:

TableView Level 1

cardiology

TableView Level 2
primary_hypertension
secondary_hypertension

TableView Level 3 (revealed if secondary_hypertension is selected)
congestive_heart_failure
no_congestive_heart_failure

<?xml version="1.0" encoding="UTF-8"?>
<root>cardiology
    <category>hypertension
        <child>
            <category>primary_hypertension 
            </category>
        </child>
        <child>
            <category>secondary_hypertension 
                <child>
                    <category>congestive_heart_failure</category>
                </child>
                <child>
                    <category>no_congestive_heart_failure</category>
                </child>
            </category>
        </child>
    </category>        
</root>

The issue seems to be the repeating nested categories. Sometimes one category has numerous subcategories. Other times a given category might have no subcategories. Is my xml constructed wrong? Thanks!

My problem is exactly the same as a guy who wanted to parse the following xml into menus and submenus. The multiple delegates sample is hard for me to follow as it is a snippet and not a full fleshed out example. Pointers and samples would be appreciate:

   1. <testxml>  
   2. <Menu>  
   3.     <MenuItem>  
   4.         <menuName>Menu 1</menuName>  
   5.         <MenuChildren>  
   6.             <MenuItem>  
   7.                 <menuName>Sub-Menu 1</menuName>  
   8.             </MenuItem>  
   9.             <MenuItem>  
  10.                 <menuName>Sub-Menu 1a</menuName>  
  11.                 <MenuChildren>  
  12.                     <MenuItem>  
  13.                         <menuName>Sub-Sub-Menu 1aa</menuName>  
  14.                     </MenuItem>  
  15.                 </MenuChildren>  
  16.             </MenuItem>  
  17.         </MenuChildren>  
  18.     </MenuItem>  
  19.     <MenuItem>  
  20.         <menuName>Menu 2</menuName>  
  21.     </MenuItem>  
  22.     <MenuItem>  
  23.         <menuName>Menu 3</menuName>  
  24.     </MenuItem>  
  25.     <MenuItem>  
  26.         <menuName>Menu 4</menuName>  
  27.     </MenuItem>  
  28. </Menu>  
  29. </testxml>