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// file : examples/cxx/tree/custom/comments/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/util/XMLUniDefs.hpp> // chLatin_*
#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)
{
const XMLCh ls_id [] = {chLatin_L, chLatin_S, chNull};
// Get an implementation of the Load-Store (LS) interface.
//
DOMImplementation* impl (
DOMImplementationRegistry::getDOMImplementation (ls_id));
xml::dom::auto_ptr<DOMLSParser> parser (
impl->createLSParser (DOMImplementationLS::MODE_SYNCHRONOUS, 0));
DOMConfiguration* conf (parser->getDomConfig ());
// Preserve comment nodes in the document.
//
conf->setParameter (XMLUni::fgDOMComments, true);
// 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);
// Prepare input stream.
//
xml::sax::std_input_source isrc (is, id);
Wrapper4InputSource wrap (&isrc, false);
xml::dom::auto_ptr<DOMDocument> doc (parser->parse (&wrap));
eh.throw_if_failed<tree::parsing<char> > ();
return doc;
}
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