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/*
* Copyright (C) 2013-2015, 2019 by the Konclude Developer Team.
*
* This file is part of the reasoning system Konclude.
* For details and support, see <http://konclude.com/>.
*
* Konclude is free software: you can redistribute it and/or modify
* it under the terms of version 3 of the GNU Lesser General Public
* License (LGPLv3) as published by the Free Software Foundation.
*
* Konclude is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU (Lesser) General Public License for more details.
*
* You should have received a copy of the GNU (Lesser) General Public
* License along with Konclude. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "CXMLHandlerStackBase.h"
namespace Konclude {
namespace Parser {
CXMLHandlerStackBase::CXMLHandlerStackBase() : CLogIdentifier("::Konclude::Parser::XMLHandlerStackBase",this) {
mCurrentHandlerData = nullptr;
mParseElementLevel = 0;
}
bool CXMLHandlerStackBase::pushStackedHandler(CXMLHandler* handler, bool automaticallyPop, CParsingHandlingContext* handlingContext) {
if (handler) {
CXMLHandlerData* newHandlerData = new CXMLHandlerData(handler,automaticallyPop,mParseElementLevel);
mHandlerDataStack.push(newHandlerData);
mCurrentHandlerData = newHandlerData;
return true;
}
return false;
}
bool CXMLHandlerStackBase::popStackedHandler(CXMLHandler* handler, CParsingHandlingContext* handlingContext) {
if (!mCurrentHandlerData || mCurrentHandlerData->mHandler != handler) {
return false;
}
mHandlerDataStack.pop();
mCurrentHandlerData = nullptr;
if (mHandlerDataStack.count() > 0) {
mCurrentHandlerData = mHandlerDataStack.top();
}
return true;
}
bool CXMLHandlerStackBase::startElement(const QString& namespaceURI, const QString& localName, const QString& qName, const QXmlAttributes& atts, CParsingHandlingContext* handlingContext) {
++mParseElementLevel;
if (mCurrentHandlerData) {
if (!mCurrentHandlerData->mStartDocumentCalled) {
mCurrentHandlerData->mStartDocumentCalled = true;
mCurrentHandlerData->mHandler->startDocument(handlingContext);
}
return mCurrentHandlerData->mHandler->startElement(namespaceURI,localName,qName,atts,handlingContext);
}
return false;
}
bool CXMLHandlerStackBase::endElement(const QString& namespaceURI, const QString& localName, const QString& qName, CParsingHandlingContext* handlingContext) {
--mParseElementLevel;
if (mCurrentHandlerData) {
if (mCurrentHandlerData->mParseElementLevel > mParseElementLevel) {
bool autoPop = mCurrentHandlerData->mAutoPop;
mCurrentHandlerData->mHandler->endDocument(handlingContext);
if (autoPop) {
popStackedHandler(mCurrentHandlerData->mHandler,handlingContext);
}
}
}
if (mCurrentHandlerData) {
return mCurrentHandlerData->mHandler->endElement(namespaceURI,localName,qName,handlingContext);
}
return false;
}
bool CXMLHandlerStackBase::startDocument(CParsingHandlingContext* handlingContext) {
return true;
}
bool CXMLHandlerStackBase::endDocument(CParsingHandlingContext* handlingContext) {
while (mCurrentHandlerData) {
bool autoPop = mCurrentHandlerData->mAutoPop;
mCurrentHandlerData->mHandler->endDocument(handlingContext);
if (autoPop) {
popStackedHandler(mCurrentHandlerData->mHandler,handlingContext);
}
}
return true;
}
}; // end namespace Parser
}; // end namespace Konclude
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