00001 /*
00002 * The Apache Software License, Version 1.1
00003 *
00004 * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
00005 * reserved.
00006 *
00007 * Redistribution and use in source and binary forms, with or without
00008 * modification, are permitted provided that the following conditions
00009 * are met:
00010 *
00011 * 1. Redistributions of source code must retain the above copyright
00012 * notice, this list of conditions and the following disclaimer.
00013 *
00014 * 2. Redistributions in binary form must reproduce the above copyright
00015 * notice, this list of conditions and the following disclaimer in
00016 * the documentation and/or other materials provided with the
00017 * distribution.
00018 *
00019 * 3. The end-user documentation included with the redistribution,
00020 * if any, must include the following acknowledgment:
00021 * "This product includes software developed by the
00022 * Apache Software Foundation (http://www.apache.org/)."
00023 * Alternately, this acknowledgment may appear in the software itself,
00024 * if and wherever such third-party acknowledgments normally appear.
00025 *
00026 * 4. The names "Xerces" and "Apache Software Foundation" must
00027 * not be used to endorse or promote products derived from this
00028 * software without prior written permission. For written
00029 * permission, please contact apache\@apache.org.
00030 *
00031 * 5. Products derived from this software may not be called "Apache",
00032 * nor may "Apache" appear in their name, without prior written
00033 * permission of the Apache Software Foundation.
00034 *
00035 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00036 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00037 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00038 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00039 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00040 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00041 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00042 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00043 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00044 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00045 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00046 * SUCH DAMAGE.
00047 * ====================================================================
00048 *
00049 * This software consists of voluntary contributions made by many
00050 * individuals on behalf of the Apache Software Foundation, and was
00051 * originally based on software copyright (c) 1999, International
00052 * Business Machines, Inc., http://www.ibm.com . For more information
00053 * on the Apache Software Foundation, please see
00054 * <http://www.apache.org/>.
00055 */
00056
00057 #ifndef XMLUCS4TRANSCODER_HPP
00058 #define XMLUCS4TRANSCODER_HPP
00059
00060 #include <util/XercesDefs.hpp>
00061 #include <util/TransService.hpp>
00062
00063
00064 //
00065 // This class provides an implementation of the XMLTranscoder interface
00066 // for a simple UCS4 transcoder. The parser does some encodings
00067 // intrinsically without depending upon external transcoding services.
00068 // To make everything more orthagonal, we implement these internal
00069 // transcoders using the same transcoder abstraction as the pluggable
00070 // transcoding services do.
00071 //
00072 class XMLUCS4Transcoder : public XMLTranscoder
00073 {
00074 public :
00075 // -----------------------------------------------------------------------
00076 // Public constructors and destructor
00077 // -----------------------------------------------------------------------
00078 XMLUCS4Transcoder
00079 (
00080 const XMLCh* const encodingName
00081 , const unsigned int blockSize
00082 , const bool swapped
00083 );
00084
00085 virtual ~XMLUCS4Transcoder();
00086
00087
00088 // -----------------------------------------------------------------------
00089 // Implementation of the XMLTranscoder interface
00090 // -----------------------------------------------------------------------
00091 virtual unsigned int transcodeFrom
00092 (
00093 const XMLByte* const srcData
00094 , const unsigned int srcCount
00095 , XMLCh* const toFill
00096 , const unsigned int maxChars
00097 , unsigned int& bytesEaten
00098 , unsigned char* const charSizes
00099 );
00100
00101 virtual unsigned int transcodeTo
00102 (
00103 const XMLCh* const srcData
00104 , const unsigned int srcCount
00105 , XMLByte* const toFill
00106 , const unsigned int maxBytes
00107 , unsigned int& charsEaten
00108 , const UnRepOpts options
00109 );
00110
00111 virtual bool canTranscodeTo
00112 (
00113 const unsigned int toCheck
00114 ) const;
00115
00116
00117 private :
00118 // -----------------------------------------------------------------------
00119 // Unimplemented constructors and operators
00120 // -----------------------------------------------------------------------
00121 XMLUCS4Transcoder(const XMLUCS4Transcoder&);
00122 void operator=(const XMLUCS4Transcoder&);
00123
00124
00125 // -----------------------------------------------------------------------
00126 // Private data members
00127 //
00128 // fSwapped
00129 // This tells us if our input is going to be in the same endianess
00130 // as the local host or swapped.
00131 // -----------------------------------------------------------------------
00132 bool fSwapped;
00133 };
00134
00135 #endif