TranscodingException

[Dakala <da...@ymail.com>]

Hi,

I have a well known TranscodingException in my xerces code below, because of
a special hyphen character but I don't know how to resolve it.
I'm using xerces-c-3.1.1 on a Centos 5 with kernel 2.6.18.

Could you help me, please?

Thanks a lot,

Sen

-------------------------------------------------------------------------------

// compile with: g++ Test1.cpp -o Test1 -lxerces-c -Wl,-rpath
-Wl,/usr/local/lib/

#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/dom/DOMLSParser.hpp>

using namespace XERCES_CPP_NAMESPACE;


int
main(int   __argc,
     char* __argv[])
{
   try
      {
         XMLPlatformUtils::Initialize();
      }
    catch (const XMLException& e)
      {
         return(-1);
      }

   char * sample = "problem with this character: —";

   // throws an TranscodingException because of the character '—' !!
   XMLCh* xml_sample = XMLString::transcode(sample); 


   XMLString::release(&xml_sample);

   XMLPlatformUtils::Terminate();

   return(0);
}

------------------------------------------------------------------------------
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Re: TranscodingException

[Dakala <da...@ymail.com>]

It seems that I've got a solution to my problem with
XMLTranscoder::transcodeFrom.
It may be not the perfect one, but it works.

Hope this help.

PS: why 16x1024 for makeNewTranscoderFor ?
     why max_chars = source_count * 6 ?

-------------------------------------------------------------------------------
// Compile with: g++ Test1.cpp -o Test1 -lxerces-c -Wl,-rpath
-Wl,/usr/local/lib/


#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/dom/DOMLSParser.hpp>
#include <xercesc/util/TransService.hpp>

using namespace XERCES_CPP_NAMESPACE;


XMLCh *
transcodeUTF16(const char * __source_data)
{
   XMLTransService::Codes result_code;  // result of the encoding creation:
Ok | UnsupportedEncoding | InternalFailure | SupportFilesNotFound   
  
   XMLTranscoder * transcoder =
XMLPlatformUtils::fgTransService->makeNewTranscoderFor("UTF-16",
result_code, 16*1024);

   XMLSize_t       source_count = strlen(__source_data);
   XMLSize_t       max_chars    = source_count * 6 + 1;
   XMLCh *         output       = new XMLCh[max_chars];
   XMLSize_t       bytes_eaten  = 0;  
   unsigned char*  char_sizes   = new unsigned char[max_chars]; 
   
   int nb_ret_chars = transcoder->transcodeFrom( (const XMLByte*)
__source_data, source_count, output, max_chars, bytes_eaten, char_sizes);

   delete(char_sizes);
   
   delete(transcoder);
   
   return(output);
}

   
int
main(int   __argc,
     char* __argv[])
{
   try
      {
         XMLPlatformUtils::Initialize();
      }
    catch (const XMLException& e)
      {
         return(-1);
      }

   char * value = "problem with this character: —";

   
   // WORKING
   XMLCh * transcoded_value = transcodeUTF16(value);
   delete(transcoded_value);
  
  
   // NOT WORKING: throw an TranscodingException because of the character
'—' !!
//   XMLCh* xml_sample = XMLString::transcode(sample); 
//   XMLString::release(&xml_sample);

   XMLPlatformUtils::Terminate();

   return(0);
}

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