[188] | 1 | /*
|
---|
| 2 | * The Apache Software License, Version 1.1
|
---|
| 3 | *
|
---|
| 4 | * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
|
---|
| 5 | * reserved.
|
---|
| 6 | *
|
---|
| 7 | * Redistribution and use in source and binary forms, with or without
|
---|
| 8 | * modification, are permitted provided that the following conditions
|
---|
| 9 | * are met:
|
---|
| 10 | *
|
---|
| 11 | * 1. Redistributions of source code must retain the above copyright
|
---|
| 12 | * notice, this list of conditions and the following disclaimer.
|
---|
| 13 | *
|
---|
| 14 | * 2. Redistributions in binary form must reproduce the above copyright
|
---|
| 15 | * notice, this list of conditions and the following disclaimer in
|
---|
| 16 | * the documentation and/or other materials provided with the
|
---|
| 17 | * distribution.
|
---|
| 18 | *
|
---|
| 19 | * 3. The end-user documentation included with the redistribution,
|
---|
| 20 | * if any, must include the following acknowledgment:
|
---|
| 21 | * "This product includes software developed by the
|
---|
| 22 | * Apache Software Foundation (http://www.apache.org/)."
|
---|
| 23 | * Alternately, this acknowledgment may appear in the software itself,
|
---|
| 24 | * if and wherever such third-party acknowledgments normally appear.
|
---|
| 25 | *
|
---|
| 26 | * 4. The names "Xerces" and "Apache Software Foundation" must
|
---|
| 27 | * not be used to endorse or promote products derived from this
|
---|
| 28 | * software without prior written permission. For written
|
---|
| 29 | * permission, please contact apache\@apache.org.
|
---|
| 30 | *
|
---|
| 31 | * 5. Products derived from this software may not be called "Apache",
|
---|
| 32 | * nor may "Apache" appear in their name, without prior written
|
---|
| 33 | * permission of the Apache Software Foundation.
|
---|
| 34 | *
|
---|
| 35 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
---|
| 36 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
---|
| 37 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
---|
| 38 | * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
---|
| 39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
---|
| 40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
---|
| 41 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
---|
| 42 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
---|
| 43 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
---|
| 44 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
---|
| 45 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
---|
| 46 | * SUCH DAMAGE.
|
---|
| 47 | * ====================================================================
|
---|
| 48 | *
|
---|
| 49 | * This software consists of voluntary contributions made by many
|
---|
| 50 | * individuals on behalf of the Apache Software Foundation, and was
|
---|
| 51 | * originally based on software copyright (c) 1999, International
|
---|
| 52 | * Business Machines, Inc., http://www.ibm.com . For more information
|
---|
| 53 | * on the Apache Software Foundation, please see
|
---|
| 54 | * <http://www.apache.org/>.
|
---|
| 55 | */
|
---|
| 56 |
|
---|
| 57 | /*
|
---|
| 58 | * $Log: XML256TableTranscoder.hpp,v $
|
---|
| 59 | * Revision 1.4 2003/12/17 00:18:35 cargilld
|
---|
| 60 | * Update to memory management so that the static memory manager (one used to call Initialize) is only for static data.
|
---|
| 61 | *
|
---|
| 62 | * Revision 1.3 2003/03/07 18:11:55 tng
|
---|
| 63 | * Return a reference instead of void for operator=
|
---|
| 64 | *
|
---|
| 65 | * Revision 1.2 2002/11/04 15:22:05 tng
|
---|
| 66 | * C++ Namespace Support.
|
---|
| 67 | *
|
---|
| 68 | * Revision 1.1.1.1 2002/02/01 22:22:13 peiyongz
|
---|
| 69 | * sane_include
|
---|
| 70 | *
|
---|
| 71 | * Revision 1.1 2000/03/18 00:00:32 roddey
|
---|
| 72 | * Initial updates for two way transcoding support
|
---|
| 73 | *
|
---|
| 74 | */
|
---|
| 75 |
|
---|
| 76 |
|
---|
| 77 | #ifndef XML256TABLETRANSCODER_HPP
|
---|
| 78 | #define XML256TABLETRANSCODER_HPP
|
---|
| 79 |
|
---|
| 80 | #include <xercesc/util/TransService.hpp>
|
---|
| 81 |
|
---|
| 82 | XERCES_CPP_NAMESPACE_BEGIN
|
---|
| 83 |
|
---|
| 84 | //
|
---|
| 85 | // This class implements the functionality of a common type of transcoder
|
---|
| 86 | // for an 8 bit, single byte encoding based on a set of 'to' and 'from'
|
---|
| 87 | // translation tables. Actual derived classes are trivial and just have to
|
---|
| 88 | // provide us with pointers to their tables and we do all the work.
|
---|
| 89 | //
|
---|
| 90 | class XMLUTIL_EXPORT XML256TableTranscoder : public XMLTranscoder
|
---|
| 91 | {
|
---|
| 92 | public :
|
---|
| 93 | // -----------------------------------------------------------------------
|
---|
| 94 | // Public constructors and destructor
|
---|
| 95 | // -----------------------------------------------------------------------
|
---|
| 96 | virtual ~XML256TableTranscoder();
|
---|
| 97 |
|
---|
| 98 |
|
---|
| 99 | // -----------------------------------------------------------------------
|
---|
| 100 | // The virtual transcoding interface
|
---|
| 101 | // -----------------------------------------------------------------------
|
---|
| 102 | virtual unsigned int transcodeFrom
|
---|
| 103 | (
|
---|
| 104 | const XMLByte* const srcData
|
---|
| 105 | , const unsigned int srcCount
|
---|
| 106 | , XMLCh* const toFill
|
---|
| 107 | , const unsigned int maxChars
|
---|
| 108 | , unsigned int& bytesEaten
|
---|
| 109 | , unsigned char* const charSizes
|
---|
| 110 | );
|
---|
| 111 |
|
---|
| 112 | virtual unsigned int transcodeTo
|
---|
| 113 | (
|
---|
| 114 | const XMLCh* const srcData
|
---|
| 115 | , const unsigned int srcCount
|
---|
| 116 | , XMLByte* const toFill
|
---|
| 117 | , const unsigned int maxBytes
|
---|
| 118 | , unsigned int& charsEaten
|
---|
| 119 | , const UnRepOpts options
|
---|
| 120 | );
|
---|
| 121 |
|
---|
| 122 | virtual bool canTranscodeTo
|
---|
| 123 | (
|
---|
| 124 | const unsigned int toCheck
|
---|
| 125 | ) const;
|
---|
| 126 |
|
---|
| 127 |
|
---|
| 128 | protected :
|
---|
| 129 | // -----------------------------------------------------------------------
|
---|
| 130 | // Hidden constructors
|
---|
| 131 | // -----------------------------------------------------------------------
|
---|
| 132 | XML256TableTranscoder
|
---|
| 133 | (
|
---|
| 134 | const XMLCh* const encodingName
|
---|
| 135 | , const unsigned int blockSize
|
---|
| 136 | , const XMLCh* const fromTable
|
---|
| 137 | , const XMLTransService::TransRec* const toTable
|
---|
| 138 | , const unsigned int toTableSize
|
---|
| 139 | , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
|
---|
| 140 | );
|
---|
| 141 |
|
---|
| 142 |
|
---|
| 143 | // -----------------------------------------------------------------------
|
---|
| 144 | // Protected helper methods
|
---|
| 145 | // -----------------------------------------------------------------------
|
---|
| 146 | XMLByte xlatOneTo
|
---|
| 147 | (
|
---|
| 148 | const XMLCh toXlat
|
---|
| 149 | ) const;
|
---|
| 150 |
|
---|
| 151 |
|
---|
| 152 | private :
|
---|
| 153 | // -----------------------------------------------------------------------
|
---|
| 154 | // Unimplemented constructors and operators
|
---|
| 155 | // -----------------------------------------------------------------------
|
---|
| 156 | XML256TableTranscoder();
|
---|
| 157 | XML256TableTranscoder(const XML256TableTranscoder&);
|
---|
| 158 | XML256TableTranscoder& operator=(const XML256TableTranscoder&);
|
---|
| 159 |
|
---|
| 160 |
|
---|
| 161 | // -----------------------------------------------------------------------
|
---|
| 162 | // Private data members
|
---|
| 163 | //
|
---|
| 164 | // fFromTable
|
---|
| 165 | // This is the 'from' table that we were given during construction.
|
---|
| 166 | // It is a 256 entry table of XMLCh chars. Each entry is the
|
---|
| 167 | // Unicode code point for the external encoding point of that value.
|
---|
| 168 | // So fFromTable[N] is the Unicode translation of code point N of
|
---|
| 169 | // the source encoding.
|
---|
| 170 | //
|
---|
| 171 | // We don't own this table, we just refer to it. It is assumed that
|
---|
| 172 | // the table is static, for performance reasons.
|
---|
| 173 | //
|
---|
| 174 | // fToSize
|
---|
| 175 | // The 'to' table is variable sized. This indicates how many records
|
---|
| 176 | // are in it.
|
---|
| 177 | //
|
---|
| 178 | // fToTable
|
---|
| 179 | // This is a variable sized table of TransRec structures. It must
|
---|
| 180 | // be sorted by the intCh field, i.e. the XMLCh field. It is searched
|
---|
| 181 | // binarily to find the record for a particular Unicode char. Then
|
---|
| 182 | // that record's extch field is the translation record.
|
---|
| 183 | //
|
---|
| 184 | // We don't own this table, we just refer to it. It is assumed that
|
---|
| 185 | // the table is static, for performance reasons.
|
---|
| 186 | //
|
---|
| 187 | // NOTE: There may be dups of the extCh field, since there might be
|
---|
| 188 | // multiple Unicode code points which map to the same external code
|
---|
| 189 | // point. Normally this won't happen, since the parser assumes that
|
---|
| 190 | // internalization is normalized, but we have to be prepared to do
|
---|
| 191 | // the right thing if some client code gives us non-normalized data
|
---|
| 192 | // itself.
|
---|
| 193 | // -----------------------------------------------------------------------
|
---|
| 194 | const XMLCh* fFromTable;
|
---|
| 195 | unsigned int fToSize;
|
---|
| 196 | const XMLTransService::TransRec* fToTable;
|
---|
| 197 | };
|
---|
| 198 |
|
---|
| 199 | XERCES_CPP_NAMESPACE_END
|
---|
| 200 |
|
---|
| 201 | #endif
|
---|