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#include "nsUnicodeToUCS4BE.h"
#include <string.h>

//----------------------------------------------------------------------
// Global functions and data [declaration]

static const PRUint16 g_UCS4BEMappingTable[] = {
  0x0001, 0x0004, 0x0005, 0x0008, 0x0000, 0x0000, 0xFFFF, 0x0000
};

static const PRInt16 g_UCS4BEShiftTable[] =  {
  0, u4BytesCharset, 
  ShiftCell(0,      0, 0, 0, 0, 0, 0, 0) 
};

//----------------------------------------------------------------------
// Class nsUnicodeToUCS4BE [implementation]

nsUnicodeToUCS4BE::nsUnicodeToUCS4BE() 
: nsTableEncoderSupport((uShiftTable*) &g_UCS4BEShiftTable, 
                        (uMappingTable*) &g_UCS4BEMappingTable)
{
}

//----------------------------------------------------------------------
// Subclassing of nsTableEncoderSupport class [implementation]

NS_IMETHODIMP nsUnicodeToUCS4BE::GetMaxLength(const PRUnichar * aSrc, 
                                              PRInt32 aSrcLength,
                                              PRInt32 * aDestLength)
{
  *aDestLength = 4*aSrcLength;
  return NS_OK_UENC_EXACTLENGTH;
}
NS_IMETHODIMP nsUnicodeToUCS4BE::FillInfo(PRUint32 *aInfo)
{
  memset(aInfo, 0xFF, (0x10000L >> 3));
  return NS_OK;
}