| /* |
| * 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/TranscodingException.hpp> |
| #include <xercesc/util/XML88591Transcoder.hpp> |
| #include <xercesc/util/XMLString.hpp> |
| #include <string.h> |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| // --------------------------------------------------------------------------- |
| // XML88591Transcoder: Constructors and Destructor |
| // --------------------------------------------------------------------------- |
| XML88591Transcoder::XML88591Transcoder( const XMLCh* const encodingName |
| , const unsigned int blockSize |
| , MemoryManager* const manager) : |
| |
| XMLTranscoder(encodingName, blockSize, manager) |
| { |
| } |
| |
| |
| XML88591Transcoder::~XML88591Transcoder() |
| { |
| } |
| |
| |
| // --------------------------------------------------------------------------- |
| // XML88591Transcoder: Implementation of the transcoder API |
| // --------------------------------------------------------------------------- |
| unsigned int |
| XML88591Transcoder::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 bytes in the source. |
| // |
| const unsigned int countToDo = srcCount < maxChars ? srcCount : maxChars; |
| |
| // |
| // Loop through the bytes to do and convert over each byte. Its just |
| // a cast to the wide char type. |
| // |
| const XMLByte* srcPtr = srcData; |
| XMLCh* destPtr = toFill; |
| const XMLByte* srcEnd = srcPtr + countToDo; |
| while (srcPtr < srcEnd) |
| *destPtr++ = XMLCh(*srcPtr++); |
| |
| // Set the bytes eaten, and set the char size array to the fixed size |
| bytesEaten = countToDo; |
| memset(charSizes, 1, countToDo); |
| |
| // Return the chars we transcoded |
| return countToDo; |
| } |
| |
| |
| unsigned int |
| XML88591Transcoder::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 output bytes and the number of chars in the source. |
| // |
| const unsigned int countToDo = srcCount < maxBytes ? srcCount : maxBytes; |
| |
| // |
| // Loop through the bytes to do and convert over each byte. Its just |
| // a downcast of the wide char, checking for unrepresentable chars. |
| // |
| const XMLCh* srcPtr = srcData; |
| const XMLCh* srcEnd = srcPtr + countToDo; |
| XMLByte* destPtr = toFill; |
| while (srcPtr < srcEnd) |
| { |
| // If its legal, take it and jump back to top |
| if (*srcPtr < 256) |
| { |
| *destPtr++ = XMLByte(*srcPtr++); |
| continue; |
| } |
| |
| // |
| // Its not representable so use a replacement char. According to |
| // the options, either throw or use the replacement. |
| // |
| if (options == UnRep_Throw) |
| { |
| XMLCh tmpBuf[17]; |
| XMLString::binToText((unsigned int)*srcPtr, tmpBuf, 16, 16, getMemoryManager()); |
| ThrowXMLwithMemMgr2 |
| ( |
| TranscodingException |
| , XMLExcepts::Trans_Unrepresentable |
| , tmpBuf |
| , getEncodingName() |
| , getMemoryManager() |
| ); |
| } |
| *destPtr++ = 0x1A; |
| srcPtr++; |
| } |
| |
| // Set the chars eaten |
| charsEaten = countToDo; |
| |
| // Return the bytes we transcoded |
| return countToDo; |
| } |
| |
| |
| bool XML88591Transcoder::canTranscodeTo(const unsigned int toCheck) const |
| { |
| return (toCheck < 256); |
| } |
| |
| XERCES_CPP_NAMESPACE_END |