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* Copyright (c) 1999-2000 The Apache Software Foundation. All rights
* reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. The end-user documentation included with the redistribution,
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation, and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.ibm.com . For more information
* on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
// ---------------------------------------------------------------------------
// Includes
// ---------------------------------------------------------------------------
#include <xercesc/util/BitOps.hpp>
#include <xercesc/util/XMLChTranscoder.hpp>
#include <string.h>
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// ---------------------------------------------------------------------------
// XMLChTranscoder: Constructors and Destructor
// ---------------------------------------------------------------------------
XMLChTranscoder::XMLChTranscoder(const XMLCh* const encodingName
, const unsigned int blockSize) :
XMLTranscoder(encodingName, blockSize)
{
}
XMLChTranscoder::~XMLChTranscoder()
{
}
// ---------------------------------------------------------------------------
// XMLChTranscoder: Implementation of the transcoder API
// ---------------------------------------------------------------------------
unsigned int
XMLChTranscoder::transcodeFrom( const XMLByte* const srcData
, const unsigned int srcCount
, XMLCh* const toFill
, const unsigned int maxChars
, unsigned int& bytesEaten
, unsigned char* const charSizes)
{
// If debugging, make sure that the block size is legal
#if defined(XERCES_DEBUG)
checkBlockSize(maxChars);
#endif
//
// Calculate the max chars we can do here. Its the lesser of the
// max output chars and the number of chars in the source.
//
const unsigned int srcChars = srcCount / sizeof(XMLCh);
const unsigned int countToDo = srcChars < maxChars ? srcChars : maxChars;
//
// Copy over the count of chars that we precalculated. Notice we
// convert char count to byte count here!!!
//
memcpy(toFill, srcData, countToDo * sizeof(XMLCh));
// Set the bytes eaten
bytesEaten = countToDo * sizeof(XMLCh);
// Set the character sizes to the fixed size
memset(charSizes, sizeof(XMLCh), countToDo);
// Return the chars we transcoded
return countToDo;
}
unsigned int
XMLChTranscoder::transcodeTo(const XMLCh* const srcData
, const unsigned int srcCount
, XMLByte* const toFill
, const unsigned int maxBytes
, unsigned int& charsEaten
, const UnRepOpts options)
{
// If debugging, make sure that the block size is legal
#if defined(XERCES_DEBUG)
checkBlockSize(maxBytes);
#endif
//
// Calculate the max chars we can do here. Its the lesser of the
// max chars we can store in the output byte buffer, and the number
// of chars in the source.
//
const unsigned int maxOutChars = maxBytes / sizeof(XMLCh);
const unsigned int countToDo = maxOutChars < srcCount
? maxOutChars : srcCount;
//
// Copy over the number of chars we calculated. Note that we have
// to convert the char count to a byte count!!
//
memcpy(toFill, srcData, countToDo * sizeof(XMLCh));
// Set the chars eaten
charsEaten = countToDo;
// Return the bytes we transcoded
return countToDo * sizeof(XMLCh);
}
bool XMLChTranscoder::canTranscodeTo(const unsigned int toCheck) const
{