| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| |
| // --------------------------------------------------------------------------- |
| // Includes |
| // --------------------------------------------------------------------------- |
| #include <xercesc/util/BitOps.hpp> |
| #include <xercesc/util/XMLChTranscoder.hpp> |
| #include <string.h> |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| // --------------------------------------------------------------------------- |
| // XMLChTranscoder: Constructors and Destructor |
| // --------------------------------------------------------------------------- |
| XMLChTranscoder::XMLChTranscoder(const XMLCh* const encodingName |
| , const unsigned int blockSize |
| , MemoryManager* const manager) : |
| |
| XMLTranscoder(encodingName, blockSize, manager) |
| { |
| } |
| |
| |
| 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) |
| { |
| // 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) const |
| { |
| // We can handle anything |
| return true; |
| } |
| |
| XERCES_CPP_NAMESPACE_END |