XPath support in Xerces-C

Question

I am supporting a legacy C++ application which uses Xerces-C for XML parsing. I've been spoiled by .Net and am used to using XPath to select nodes from a DOM tree.

Is there any way to get access some limited XPath functionality in Xerces-C? I'm looking for something like selectNodes("/for/bar/baz"). I could do this manually, but XPath is so nice by comparison.

Answer 1

According to the FAQ, Xerces-C supports partial XPath 1 implementation:

The same engine is made available through the DOMDocument::evaluate API to let the user perform simple XPath queries involving DOMElement nodes only, with no predicate testing and allowing the "//" operator only as the initial step.

You use DOMDocument::evaluate() to evaluate the expression, which then returns a DOMXPathResult.