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[xml] Reading only the text contents of an element

Hi,

I am using the following code to read the element contents from an xml file.
I just need the text content:

But in the output I get empty lines for those elements which do not
have text content but have child elements in them.
How do i avoid those blank lines from being printed. (I am not able to
compare it with a single newline since for each element i get many
newlines)
Please help me out.. Ive been trying to figure it out from the past two days.

static void
print_element_names(xmlDocPtr doc,xmlNodePtr a_node)
{
    xmlNode *cur_node = NULL;
xmlChar * key;

    for (cur_node = a_node; cur_node; cur_node = cur_node->next) {
        if (cur_node->type == XML_ELEMENT_NODE) {
                   printf("Element: %s\n", cur_node->name);
                   key = xmlNodeListGetString(doc,
cur_node->xmlChildrenNode, 1);
                    printf("keyword: %s\n", key);
                    xmlFree(key);

        }

        print_element_names(cur_node->children);
    }
}

int
main(int argc, char **argv)
{
    xmlDocPtr doc = NULL;
    xmlNodePtr root_element = NULL;
    doc = xmlReadFile("sample.xml", NULL, 0);
    if (doc == NULL) {
        printf("error: could not parse file );
    }

    root_element = xmlDocGetRootElement(doc);
    print_element_names(root_element);
    xmlFreeDoc(doc);
   xmlCleanupParser();
   return 0;
}
.................................................
sample.xml looks like this:
<?xml version="1.0"?>
<story>
<table>
  <storyinfo>
    <author>John Fleck</author>
    <datewritten>June 2, 2002</datewritten>
    <keyword>example keyword</keyword>
  </storyinfo>
</table>
  <body>
    <headline>This is the headline</headline>
    <para>This is the body text.</para>
  </body>
</story>
............................................................
Output:
Element:story




Element:table




Element:storyinfo



Element:
author
Element:datewritten
June 2, 2002
Element:keyword
example keyword

Element:body



Element:headline
This is the headline
Element:para
This is the body text.
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