UT_Error UT_XML::parse (const char * szFilename)
{
UT_ASSERT (m_pListener || m_pExpertListener);
UT_ASSERT (szFilename);
if ((szFilename == 0) || ((m_pListener == 0) && (m_pExpertListener == 0))) return UT_ERROR;
if (!reset_all ()) return UT_OUTOFMEM;
UT_Error ret = UT_OK;
DefaultReader defaultReader;
Reader * reader = &defaultReader;
if (m_pReader)
reader = m_pReader;
if (!reader->openFile (szFilename))
{
UT_DEBUGMSG (("Could not open file %s\n", szFilename));
return UT_errnoToUTError ();
}
char buffer[2048];
m_bStopped = false;
xmlSAXHandler hdl;
xmlParserCtxtPtr ctxt = 0;
memset(&hdl, 0, sizeof(hdl));
hdl.getEntity = _getEntity;
hdl.startElement = _startElement;
hdl.endElement = _endElement;
hdl.characters = _charData;
hdl.error = _errorSAXFunc;
hdl.fatalError = _fatalErrorSAXFunc;
hdl.processingInstruction = _processingInstruction;
hdl.comment = _comment;
hdl.cdataBlock = _cdata;
size_t length = reader->readBytes (buffer, sizeof (buffer));
int done = (length < sizeof (buffer));
if (length != 0)
{
ctxt = xmlCreatePushParserCtxt (&hdl, static_cast<void *>(this), buffer, static_cast<int>(length), szFilename);
if (ctxt == NULL)
{
UT_DEBUGMSG (("Unable to create libxml2 push-parser context!\n"));
reader->closeFile ();
return UT_ERROR;
}
xmlSubstituteEntitiesDefault (1);
UT_sint32 chucks = -1;
while (!done && !m_bStopped)
{
chucks++;
length = reader->readBytes (buffer, sizeof (buffer));
UT_DEBUGMSG(("Done chunk %d length %zd \n",chucks,length));
done = (length < sizeof (buffer));
if (xmlParseChunk (ctxt, buffer, static_cast<int>(length), 0))
{
if(getNumMinorErrors() > getNumRecoveredErrors())
{
UT_DEBUGMSG (("Error - 1 parsing '%s' (Line: %d, Column: %d)\n", szFilename, xmlSAX2GetLineNumber(ctxt), xmlSAX2GetColumnNumber(ctxt)));
ret = UT_IE_IMPORTERROR;
break;
}
}
}
if (ret == UT_OK)
if (!m_bStopped && (getNumMinorErrors() == 0))
{
if (xmlParseChunk (ctxt, "", 0, 1))
{
UT_DEBUGMSG (("Error -2 parsing '%s' (Line: %d, Column: %d)\n", szFilename, xmlSAX2GetLineNumber(ctxt), xmlSAX2GetColumnNumber(ctxt)));
ret = UT_IE_IMPORTERROR;
}
}
if (ret == UT_OK && (getNumMinorErrors() == 0))
if (!ctxt->wellFormed && !m_bStopped) ret = UT_IE_IMPORTERROR; // How does stopping mid-file affect wellFormed?
xmlDocPtr myXmlDoc = ctxt->myDoc;
xmlFreeParserCtxt (ctxt);
xmlFreeDoc(myXmlDoc);
}
else
{
UT_DEBUGMSG(("Empty file to parse - not sure how to proceed\n"));
}
reader->closeFile ();
return ret;
}
