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+// file : examples/cxx/tree/xpath/dom-parse.cxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#include "dom-parse.hxx"
+
+#include <istream>
+
+#include <xercesc/dom/DOM.hpp>
+#include <xercesc/framework/Wrapper4InputSource.hpp>
+
+#include <xsd/cxx/xml/sax/std-input-source.hxx>
+#include <xsd/cxx/xml/dom/bits/error-handler-proxy.hxx>
+
+#include <xsd/cxx/tree/exceptions.hxx>
+#include <xsd/cxx/tree/error-handler.hxx>
+
+using namespace xercesc;
+namespace xml = xsd::cxx::xml;
+namespace tree = xsd::cxx::tree;
+
+xml::dom::auto_ptr<DOMDocument>
+parse (std::istream& is,
+ const std::string& id,
+ bool validate,
+ DOMImplementation* impl)
+{
+#if _XERCES_VERSION >= 30000
+
+ // Xerces-C++ 3.0.0 and later.
+ //
+ xml::dom::auto_ptr<DOMLSParser> parser (
+ impl->createLSParser (DOMImplementationLS::MODE_SYNCHRONOUS, 0));
+
+ DOMConfiguration* conf (parser->getDomConfig ());
+
+ // Discard comment nodes in the document.
+ //
+ conf->setParameter (XMLUni::fgDOMComments, false);
+
+ // Enable datatype normalization.
+ //
+ conf->setParameter (XMLUni::fgDOMDatatypeNormalization, true);
+
+ // Do not create EntityReference nodes in the DOM tree. No
+ // EntityReference nodes will be created, only the nodes
+ // corresponding to their fully expanded substitution text
+ // will be created.
+ //
+ conf->setParameter (XMLUni::fgDOMEntities, false);
+
+ // Perform namespace processing.
+ //
+ conf->setParameter (XMLUni::fgDOMNamespaces, true);
+
+ // Do not include ignorable whitespace in the DOM tree.
+ //
+ conf->setParameter (XMLUni::fgDOMElementContentWhitespace, false);
+
+ // Enable/Disable validation.
+ //
+ conf->setParameter (XMLUni::fgDOMValidate, validate);
+ conf->setParameter (XMLUni::fgXercesSchema, validate);
+ conf->setParameter (XMLUni::fgXercesSchemaFullChecking, false);
+
+ // Xerces-C++ 3.1.0 is the first version with working multi import
+ // support.
+ //
+#if _XERCES_VERSION >= 30100
+ conf->setParameter (XMLUni::fgXercesHandleMultipleImports, true);
+#endif
+
+ // We will release the DOM document ourselves.
+ //
+ conf->setParameter (XMLUni::fgXercesUserAdoptsDOMDocument, true);
+
+ // Set error handler.
+ //
+ tree::error_handler<char> eh;
+ xml::dom::bits::error_handler_proxy<char> ehp (eh);
+ conf->setParameter (XMLUni::fgDOMErrorHandler, &ehp);
+
+#else // _XERCES_VERSION >= 30000
+
+ // Same as above but for Xerces-C++ 2 series.
+ //
+ xml::dom::auto_ptr<DOMBuilder> parser (
+ impl->createDOMBuilder (DOMImplementationLS::MODE_SYNCHRONOUS, 0));
+
+ parser->setFeature (XMLUni::fgDOMComments, false);
+ parser->setFeature (XMLUni::fgDOMDatatypeNormalization, true);
+ parser->setFeature (XMLUni::fgDOMEntities, false);
+ parser->setFeature (XMLUni::fgDOMNamespaces, true);
+ parser->setFeature (XMLUni::fgDOMWhitespaceInElementContent, false);
+ parser->setFeature (XMLUni::fgDOMValidation, validate);
+ parser->setFeature (XMLUni::fgXercesSchema, validate);
+ parser->setFeature (XMLUni::fgXercesSchemaFullChecking, false);
+ parser->setFeature (XMLUni::fgXercesUserAdoptsDOMDocument, true);
+
+ tree::error_handler<char> eh;
+ xml::dom::bits::error_handler_proxy<char> ehp (eh);
+ parser->setErrorHandler (&ehp);
+
+#endif // _XERCES_VERSION >= 30000
+
+ // Prepare input stream.
+ //
+ xml::sax::std_input_source isrc (is, id);
+ Wrapper4InputSource wrap (&isrc, false);
+
+#if _XERCES_VERSION >= 30000
+ xml::dom::auto_ptr<DOMDocument> doc (parser->parse (&wrap));
+#else
+ xml::dom::auto_ptr<DOMDocument> doc (parser->parse (wrap));
+#endif
+
+ eh.throw_if_failed<tree::parsing<char> > ();
+
+ return doc;
+}