[xml] reading MRML file with XML2... how to access text in nodes?

[Michel Audette <michel audette kitware com>]

Dear XML users, 

I am attempting to read a MRML file using 

  doc = xmlReadFile(this->Filename.c_str(), NULL, 0);

and processing the doc file node by node,  where the MRML file features the following type of entries... 
<Slice
 id="vtkMRMLSliceNode2" name="Red" hideFromEditors="true" selectable="true" selected="false" fieldOfView="258.98 249.71 1" dimensions="894 862 1" activeSlice="0" la
youtGridRows="1" layoutGridColumns="1" sliceToRAS="-1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1" layoutName="Red" orientation="Axial" jumpMode="1" sliceVisibility="false" widge
tVisibility="false" useLabelOutline="false" sliceSpacingMode="0" prescribedSliceSpacing="1 1 1"></Slice>

I'm finding that "meaningful" nodes seem to alternate with nodes whose name is "text", and I would like to find a way to parse what is in these "text" nodes. Meantime, I get results like this: 

  for (  nodeLevel1 = doc->children; nodeLevel1 != NULL; nodeLevel1 = nodeLevel1->next)
    {
       //printf("nodeLevel1->name %s count %d \n",nodeLevel1->name, count);
    for(  nodeLevel2 = nodeLevel1->children; nodeLevel2 != NULL;
          nodeLevel2 = nodeLevel2->next)
      {
      std::cout << " nodeLevel2->name  " << nodeLevel2->name
          << " type  " << nodeLevel2->type
          //<< "  content "  << (char *)(nodeLevel2->content)
      << "\n";
...
     }
  }

Output: 
...
 nodeLevel2->name  Slice type  1
 adding  slice Slice0
 nodeLevel2->name  text type  3
nodeLevel2->name text content 
 
Can anyone recommend a function in XML that will parse this data?
 id="vtkMRMLSliceNode2" name="Red" hideFromEditors="true"
selectable="true" selected="false" fieldOfView="258.98 249.71 1"
dimensions="894 862 1" activeSlice="0" la
youtGridRows="1" layoutGridColumns="1" sliceToRAS="-1 0 0 0 0 1 0 0 0 0
1 0 0 0 0 1" layoutName="Red" orientation="Axial" jumpMode="1"
sliceVisibility="false" widge
tVisibility="false" useLabelOutline="false" sliceSpacingMode="0" prescribedSliceSpacing="1 1 1">

Best wishes, 

Michel

-- 
Michel Audette, Ph.D. 
R & D Engineer, 
Kitware Inc.,
Chapel Hill, N.C.