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/*
* 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.
*/
/*
* $Id: IconvGNUTransService.hpp 568078 2007-08-21 11:43:25Z amassari $
*/
#ifndef ICONVGNUTRANSSERVICE_HPP
#define ICONVGNUTRANSSERVICE_HPP
#include <xercesc/util/TransService.hpp>
#include <iconv.h>
XERCES_CPP_NAMESPACE_BEGIN
// ---------------------------------------------------------------------------
// Libiconv wrapper (low-level conversion utilities collection)
// ---------------------------------------------------------------------------
class XMLUTIL_EXPORT IconvGNUWrapper
{
public:
// -----------------------------------------------------------------------
// Constructors and Destructor
// -----------------------------------------------------------------------
IconvGNUWrapper
(
iconv_t cd_from,
iconv_t cd_to,
size_t uchsize,
unsigned int ubo
);
virtual ~IconvGNUWrapper();
// Convert "native unicode" character into XMLCh
void mbcToXMLCh (const char *mbc, XMLCh *toRet) const;
// Convert XMLCh into "native unicode" character
void xmlChToMbc (XMLCh xch, char *mbc) const;
// Return uppercase equivalent for XMLCh
XMLCh toUpper (const XMLCh ch) const;
// Return uppercase equivalent for XMLCh
XMLCh toLower (const XMLCh ch) const;
// Check if passed characters belongs to the :space: class
virtual bool isSpace(const XMLCh toCheck) const;
// Fill array of XMLCh characters with data, supplyed in the array
// of "native unicode" characters.
XMLCh* mbsToXML (
const char* mbs_str,
size_t mbs_cnt,
XMLCh* xml_str,
size_t xml_cnt
) const;
// Fill array of "native unicode" characters with data, supplyed
// in the array of XMLCh characters.
char* xmlToMbs
(
const XMLCh* xml_str,
size_t xml_cnt,
char* mbs_str,
size_t mbs_cnt
) const;
// Wrapper aroung the iconv() for transcoding from the local charset
size_t iconvFrom
(
const char *fromPtr,
size_t *fromLen,
char **toPtr,
size_t toLen
) const;
// Wrapper aroung the iconv() for transcoding to the local charset
size_t iconvTo
(
const char *fromPtr,
size_t *fromLen,
char **toPtr,
size_t toLen
) const;
// Private data accessors
inline iconv_t cdTo () const { return fCDTo; }
inline iconv_t cdFrom () const { return fCDFrom; }
inline size_t uChSize () const { return fUChSize; }
inline unsigned int UBO () const { return fUBO; }
protected:
// Hiden defaull constructor
IconvGNUWrapper();
// Private data accessors
inline void setCDTo (iconv_t cd) { fCDTo = cd; }
inline void setCDFrom (iconv_t cd) { fCDFrom = cd; }
inline void setUChSize (size_t sz) { fUChSize = sz; }
inline void setUBO (unsigned int u) { fUBO = u; }
private:
// -----------------------------------------------------------------------
// Unimplemented constructors and operators
// -----------------------------------------------------------------------
IconvGNUWrapper(const IconvGNUWrapper&);
IconvGNUWrapper& operator=(const IconvGNUWrapper&);
// -----------------------------------------------------------------------
// Private data members
//
// fCDTo
// Characterset conversion descriptor TO the local-host encoding
// fCDFrom
// Characterset conversion descriptor FROM the local-host encoding
// fUChSize
// Sizeof the "native unicode" character in bytes
// fUBO
// "Native unicode" characters byte order
// -----------------------------------------------------------------------
size_t fUChSize;
unsigned int fUBO;
iconv_t fCDTo;
iconv_t fCDFrom;
};
// ---------------------------------------------------------------------------
// FreeBSD-specific Transcoding Service implementation
// ---------------------------------------------------------------------------
class XMLUTIL_EXPORT IconvGNUTransService : public XMLTransService, IconvGNUWrapper
{
public :
// -----------------------------------------------------------------------
// Constructors and Destructor
// -----------------------------------------------------------------------
IconvGNUTransService();
~IconvGNUTransService();
// -----------------------------------------------------------------------
// Implementation of the virtual transcoding service API
// -----------------------------------------------------------------------
virtual int compareIString
(
const XMLCh* const comp1
, const XMLCh* const comp2
);
virtual int compareNIString
(
const XMLCh* const comp1
, const XMLCh* const comp2
, const unsigned int maxChars
);
virtual const XMLCh* getId() const;
virtual bool isSpace(const XMLCh toCheck) const;
virtual XMLLCPTranscoder* makeNewLCPTranscoder();
virtual bool supportsSrcOfs() const;
virtual void upperCase(XMLCh* const toUpperCase) const;
virtual void lowerCase(XMLCh* const toUpperCase) const;
protected :
// -----------------------------------------------------------------------
// Protected virtual methods
// -----------------------------------------------------------------------
virtual XMLTranscoder* makeNewXMLTranscoder
(
const XMLCh* const encodingName
, XMLTransService::Codes& resValue
, const unsigned int blockSize
, MemoryManager* const manager
);
private :
// -----------------------------------------------------------------------
// Unimplemented constructors and operators
// -----------------------------------------------------------------------
IconvGNUTransService(const IconvGNUTransService&);
IconvGNUTransService& operator=(const IconvGNUTransService&);
// -----------------------------------------------------------------------
// Private data members
//
// fUnicodeCP
// Unicode encoding schema name
// -----------------------------------------------------------------------
const char* fUnicodeCP;
};
//----------------------------------------------------------------------------
// Implementation of the transcoders for arbitrary input characterset is
// supported ONLY through libiconv interface
//----------------------------------------------------------------------------
class XMLUTIL_EXPORT IconvGNUTranscoder : public XMLTranscoder, IconvGNUWrapper
{
public :
// -----------------------------------------------------------------------
// Constructors and Destructor
// -----------------------------------------------------------------------
IconvGNUTranscoder(const XMLCh* const encodingName
, const unsigned int blockSize
, iconv_t cd_from
, iconv_t cd_to
, size_t uchsize
, unsigned int ubo
, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
);
~IconvGNUTranscoder();
// -----------------------------------------------------------------------
// Implementation of the virtual transcoder interface
// -----------------------------------------------------------------------
virtual unsigned int transcodeFrom
(
const XMLByte* const srcData
, const unsigned int srcCount
, XMLCh* const toFill
, const unsigned int maxChars
, unsigned int& bytesEaten
, unsigned char* const charSizes
);
virtual unsigned int transcodeTo
(
const XMLCh* const srcData
, const unsigned int srcCount
, XMLByte* const toFill
, const unsigned int maxBytes
, unsigned int& charsEaten
, const UnRepOpts options
);
virtual bool canTranscodeTo
(
const unsigned int toCheck
) const;
private :
// -----------------------------------------------------------------------
// Unimplemented constructors and operators
// -----------------------------------------------------------------------
IconvGNUTranscoder();
IconvGNUTranscoder(const IconvGNUTranscoder&);
IconvGNUTranscoder& operator=(const IconvGNUTranscoder&);
};
// ---------------------------------------------------------------------------
// GNU-specific XMLCh <-> local (host) characterset transcoder
// ---------------------------------------------------------------------------
class XMLUTIL_EXPORT IconvGNULCPTranscoder : public XMLLCPTranscoder, IconvGNUWrapper
{
public :
// -----------------------------------------------------------------------
// Constructors and Destructor
// -----------------------------------------------------------------------
IconvGNULCPTranscoder
(
iconv_t from,
iconv_t to,
size_t uchsize,
unsigned int ubo
);
protected:
IconvGNULCPTranscoder(); // Unimplemented
public:
~IconvGNULCPTranscoder();
// -----------------------------------------------------------------------
// Implementation of the virtual transcoder interface
// -----------------------------------------------------------------------
virtual unsigned int calcRequiredSize(const char* const srcText
, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
virtual unsigned int calcRequiredSize(const XMLCh* const srcText
, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
virtual char* transcode(const XMLCh* const toTranscode);
virtual char* transcode(const XMLCh* const toTranscode,
MemoryManager* const manager);
virtual bool transcode
(
const XMLCh* const toTranscode
, char* const toFill
, const unsigned int maxBytes
, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
);
virtual XMLCh* transcode(const char* const toTranscode);
virtual XMLCh* transcode(const char* const toTranscode,
MemoryManager* const manager);
virtual bool transcode
(
const char* const toTranscode
, XMLCh* const toFill
, const unsigned int maxChars
, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
);
private :
// -----------------------------------------------------------------------
// Unimplemented constructors and operators
// -----------------------------------------------------------------------
IconvGNULCPTranscoder(const IconvGNULCPTranscoder&);
IconvGNULCPTranscoder& operator=(const IconvGNULCPTranscoder&);
};
XERCES_CPP_NAMESPACE_END
#endif /* ICONVGNUTRANSSERVICE */