sippeangelo
360 lines
12 KiB
C++
360 lines
12 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: IconvGNUTransService.hpp 932887 2010-04-11 13:04:59Z borisk $
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*/
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#if !defined(XERCESC_INCLUDE_GUARD_ICONVGNUTRANSSERVICE_HPP)
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#define XERCESC_INCLUDE_GUARD_ICONVGNUTRANSSERVICE_HPP
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#include <xercesc/util/TransService.hpp>
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#include <xercesc/util/Mutexes.hpp>
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#include <iconv.h>
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XERCES_CPP_NAMESPACE_BEGIN
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// ---------------------------------------------------------------------------
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// Libiconv wrapper (low-level conversion utilities collection)
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// ---------------------------------------------------------------------------
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class XMLUTIL_EXPORT IconvGNUWrapper
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{
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public:
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// -----------------------------------------------------------------------
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// Constructors and Destructor
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// -----------------------------------------------------------------------
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IconvGNUWrapper
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(
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iconv_t cd_from,
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iconv_t cd_to,
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size_t uchsize,
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unsigned int ubo,
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MemoryManager* manager
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);
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virtual ~IconvGNUWrapper();
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// Convert "native unicode" character into XMLCh
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void mbcToXMLCh (const char *mbc, XMLCh *toRet) const;
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// Convert XMLCh into "native unicode" character
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void xmlChToMbc (XMLCh xch, char *mbc) const;
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// Fill array of XMLCh characters with data, supplied in the array
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// of "native unicode" characters.
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XMLCh* mbsToXML (
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const char* mbs_str,
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XMLCh* xml_str,
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size_t cnt
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) const;
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// Fill array of "native unicode" characters with data, supplied
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// in the array of XMLCh characters.
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char* xmlToMbs
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(
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const XMLCh* xml_str,
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char* mbs_str,
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size_t cnt
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) const;
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// Private data accessors
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inline iconv_t cdTo () const { return fCDTo; }
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inline iconv_t cdFrom () const { return fCDFrom; }
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inline size_t uChSize () const { return fUChSize; }
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inline unsigned int UBO () const { return fUBO; }
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protected:
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// The following four functions should called with the fMutex
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// locked.
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//
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// Return uppercase equivalent for XMLCh
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XMLCh toUpper (const XMLCh ch);
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// Return uppercase equivalent for XMLCh
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XMLCh toLower (const XMLCh ch);
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// Wrapper around the iconv() for transcoding from the local charset
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size_t iconvFrom
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(
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const char *fromPtr,
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size_t *fromLen,
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char **toPtr,
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size_t toLen
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);
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// Wrapper around the iconv() for transcoding to the local charset
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size_t iconvTo
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(
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const char *fromPtr,
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size_t *fromLen,
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char **toPtr,
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size_t toLen
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);
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protected:
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// Hidden constructor
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IconvGNUWrapper(MemoryManager* manager);
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// Private data accessors
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inline void setCDTo (iconv_t cd) { fCDTo = cd; }
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inline void setCDFrom (iconv_t cd) { fCDFrom = cd; }
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inline void setUChSize (size_t sz) { fUChSize = sz; }
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inline void setUBO (unsigned int u) { fUBO = u; }
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private:
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// -----------------------------------------------------------------------
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// Unimplemented constructors and operators
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// -----------------------------------------------------------------------
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IconvGNUWrapper(const IconvGNUWrapper&);
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IconvGNUWrapper& operator=(const IconvGNUWrapper&);
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// -----------------------------------------------------------------------
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// Private data members
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//
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// fCDTo
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// Characterset conversion descriptor TO the local-host encoding
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// fCDFrom
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// Characterset conversion descriptor FROM the local-host encoding
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// fUChSize
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// Sizeof the "native unicode" character in bytes
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// fUBO
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// "Native unicode" characters byte order
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// -----------------------------------------------------------------------
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size_t fUChSize;
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unsigned int fUBO;
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iconv_t fCDTo;
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iconv_t fCDFrom;
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protected:
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XMLMutex fMutex;
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};
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// ---------------------------------------------------------------------------
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// FreeBSD-specific Transcoding Service implementation
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// ---------------------------------------------------------------------------
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class XMLUTIL_EXPORT IconvGNUTransService : public XMLTransService, IconvGNUWrapper
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{
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public :
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// -----------------------------------------------------------------------
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// Constructors and Destructor
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// -----------------------------------------------------------------------
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IconvGNUTransService(MemoryManager* manager);
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~IconvGNUTransService();
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// -----------------------------------------------------------------------
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// Implementation of the virtual transcoding service API
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// -----------------------------------------------------------------------
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virtual int compareIString
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(
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const XMLCh* const comp1
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, const XMLCh* const comp2
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);
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virtual int compareNIString
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(
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const XMLCh* const comp1
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, const XMLCh* const comp2
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, const XMLSize_t maxChars
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);
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virtual const XMLCh* getId() const;
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virtual XMLLCPTranscoder* makeNewLCPTranscoder(MemoryManager* manager);
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virtual bool supportsSrcOfs() const;
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virtual void upperCase(XMLCh* const toUpperCase);
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virtual void lowerCase(XMLCh* const toUpperCase);
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protected :
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// -----------------------------------------------------------------------
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// Protected virtual methods
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// -----------------------------------------------------------------------
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virtual XMLTranscoder* makeNewXMLTranscoder
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(
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const XMLCh* const encodingName
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, XMLTransService::Codes& resValue
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, const XMLSize_t blockSize
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, MemoryManager* const manager
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);
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private :
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// -----------------------------------------------------------------------
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// Unimplemented constructors and operators
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// -----------------------------------------------------------------------
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IconvGNUTransService(const IconvGNUTransService&);
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IconvGNUTransService& operator=(const IconvGNUTransService&);
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// -----------------------------------------------------------------------
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// Private data members
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//
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// fUnicodeCP
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// Unicode encoding schema name
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// -----------------------------------------------------------------------
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const char* fUnicodeCP;
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};
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//----------------------------------------------------------------------------
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// Implementation of the transcoders for arbitrary input characterset is
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// supported ONLY through libiconv interface
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//----------------------------------------------------------------------------
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class XMLUTIL_EXPORT IconvGNUTranscoder : public XMLTranscoder, IconvGNUWrapper
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{
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public :
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// -----------------------------------------------------------------------
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// Constructors and Destructor
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// -----------------------------------------------------------------------
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IconvGNUTranscoder(const XMLCh* const encodingName
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, const XMLSize_t blockSize
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, iconv_t cd_from
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, iconv_t cd_to
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, size_t uchsize
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, unsigned int ubo
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
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);
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~IconvGNUTranscoder();
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// -----------------------------------------------------------------------
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// Implementation of the virtual transcoder interface
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// -----------------------------------------------------------------------
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virtual XMLSize_t transcodeFrom
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(
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const XMLByte* const srcData
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, const XMLSize_t srcCount
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, XMLCh* const toFill
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, const XMLSize_t maxChars
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, XMLSize_t& bytesEaten
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, unsigned char* const charSizes
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);
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virtual XMLSize_t transcodeTo
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(
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const XMLCh* const srcData
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, const XMLSize_t srcCount
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, XMLByte* const toFill
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, const XMLSize_t maxBytes
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, XMLSize_t& charsEaten
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, const UnRepOpts options
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);
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virtual bool canTranscodeTo
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(
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const unsigned int toCheck
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);
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private :
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// -----------------------------------------------------------------------
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// Unimplemented constructors and operators
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// -----------------------------------------------------------------------
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IconvGNUTranscoder();
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IconvGNUTranscoder(const IconvGNUTranscoder&);
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IconvGNUTranscoder& operator=(const IconvGNUTranscoder&);
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};
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// ---------------------------------------------------------------------------
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// GNU-specific XMLCh <-> local (host) characterset transcoder
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// ---------------------------------------------------------------------------
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class XMLUTIL_EXPORT IconvGNULCPTranscoder : public XMLLCPTranscoder, IconvGNUWrapper
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{
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public :
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// -----------------------------------------------------------------------
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// Constructors and Destructor
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// -----------------------------------------------------------------------
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IconvGNULCPTranscoder
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(
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iconv_t from,
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iconv_t to,
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size_t uchsize,
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unsigned int ubo,
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MemoryManager* manager
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);
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protected:
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IconvGNULCPTranscoder(); // Unimplemented
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public:
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~IconvGNULCPTranscoder();
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// -----------------------------------------------------------------------
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// Implementation of the virtual transcoder interface
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// -----------------------------------------------------------------------
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virtual char* transcode(const XMLCh* const toTranscode,
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MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
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virtual XMLCh* transcode(const char* const toTranscode,
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MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
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// -----------------------------------------------------------------------
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// DEPRECATED old transcode interface
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// -----------------------------------------------------------------------
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virtual XMLSize_t calcRequiredSize(const char* const srcText
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
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virtual XMLSize_t calcRequiredSize(const XMLCh* const srcText
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
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virtual bool transcode
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(
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const char* const toTranscode
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, XMLCh* const toFill
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, const XMLSize_t maxChars
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
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);
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virtual bool transcode
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(
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const XMLCh* const toTranscode
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, char* const toFill
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, const XMLSize_t maxChars
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
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);
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private :
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// -----------------------------------------------------------------------
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// Unimplemented constructors and operators
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// -----------------------------------------------------------------------
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IconvGNULCPTranscoder(const IconvGNULCPTranscoder&);
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IconvGNULCPTranscoder& operator=(const IconvGNULCPTranscoder&);
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};
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XERCES_CPP_NAMESPACE_END
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#endif /* ICONVGNUTRANSSERVICE */
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