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/*
* Copyright (C) 2013, 2014, 2015 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 2.1 of the GNU Lesser General Public License (LGPL2.1)
* as published by the Free Software Foundation.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Konclude. If not, see <http://www.gnu.org/licenses/>.
*
* 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. For more
* details, see GNU Lesser General Public License.
*
*/
#include "CQtIODeviceStreamReader.h"
namespace Konclude {
namespace Parser {
namespace FunctionalJAVACC {
CQtIODeviceStreamReader::CQtIODeviceStreamReader(QIODevice* device) : mDevice(device) {
}
size_t CQtIODeviceStreamReader::read(JAVACC_CHAR_TYPE *bufptr, int offset, size_t len) {
int remainingLength = len;
size_t readSize = 0;
if (!mConvBuffer.isEmpty()) {
int length = mConvBuffer.length();
int copyLength = qMin(remainingLength,length);
for (int i = 0; i < copyLength; ++i) {
bufptr[offset+i] = mConvBuffer[i].unicode();
}
remainingLength = remainingLength - copyLength;
offset += copyLength;
if (copyLength == length) {
mConvBuffer.clear();
} else {
mConvBuffer = mConvBuffer.mid(copyLength);
}
readSize += copyLength;
}
if (!mDevice->atEnd() && remainingLength > 0 && mConvBuffer.isEmpty()) {
QByteArray lineByteData(mDevice->readLine());
mConvBuffer = QString::fromUtf8(lineByteData.constData(),lineByteData.length());
if (!mConvBuffer.isEmpty()) {
int length = mConvBuffer.length();
int copyLength = qMin(remainingLength,length);
for (int i = 0; i < copyLength; ++i) {
bufptr[offset+i] = mConvBuffer[i].unicode();
}
remainingLength = remainingLength - copyLength;
offset += copyLength;
if (copyLength == length) {
mConvBuffer.clear();
} else {
mConvBuffer = mConvBuffer.mid(copyLength);
}
readSize += copyLength;
}
}
return readSize;
}
bool CQtIODeviceStreamReader::endOfInput() {
return mConvBuffer.isEmpty() && mDevice->atEnd();
}
}; // end namespace FunctionalJAVACC
}; // end namespace Parser
}; // end namespace Konclude
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