For some reason (I've never heard a convincing one), the DOM spec doesn't
say to return a node's text value when you use getNodeValue(). You have to
have to go down one more level into the node and get its text node, and
take that node's value. I don't have the C++ syntax handy, but it's
probably similar to the Java:
// Get the text node from an Element called subElem.
Node textNode = subElem.getFirstChild();
if((textNode != null) && (textNode.getNodeType() == Node.TEXT_NODE))
{
sValue = textNode.getNodeValue();
dValue = Double.parseDouble(sValue);
}
Some people have argued that there's no way to determine what you'd want
from a node's getNodeValue() function if it had subnodes or attributes, but
I think that's bunk. getNodeValue() should return all text under a node
that isn't enclosed in any other structure, concatenated if it's not
contiguous. XML is text, so a node's value is its text. But the DOM
doesn't see it that way, hence the cumbersomeness.
Gavin
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