gecko-dev/intl/uconv/ucvko/nsEUCKRToUnicode.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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*
* The Original Code is Mozilla Communicator client code.
*
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#include "nsEUCKRToUnicode.h"
#include "nsUCvKODll.h"
//----------------------------------------------------------------------
// Global functions and data [declaration]
static const PRUint16 g_ASCIIShiftTable[] = {
0, u1ByteCharset,
ShiftCell(0,0,0,0,0,0,0,0)
};
#ifdef MS_EUCKR
static const PRUint16 g_EUCKRMappingTable[] = {
#include "u20ksc.ut"
};
static const PRUint16 g_EUCKRShiftTable[] = {
0, u2BytesCharset,
ShiftCell(0, 0, 0, 0, 0, 0, 0, 0)
};
static const uRange g_EUCKRRanges[] = {
{ 0x00, 0x7E },
{ 0x81, 0xFE }
};
#else
static const PRUint16 g_EUCKRShiftTable[] = {
0, u2BytesGRCharset,
ShiftCell(0, 0, 0, 0, 0, 0, 0, 0)
};
static const uRange g_EUCKRRanges[] = {
{ 0x00, 0x7E },
{ 0xA4, 0xA4 }, // 8byte seq. for Hangul syllables not available
// in pre-composed form in KS X 1001
{ 0xA1, 0xFE }
};
#endif
static const PRUint16 g_DecomposedHangulShiftTable[] = {
0, uDecomposedHangulCharset,
ShiftCell(0, 0, 0, 0, 0, 0, 0, 0),
};
static const PRUint16 *g_EUCKRShiftTableSet [] = {
g_ASCIIShiftTable,
g_DecomposedHangulShiftTable,
g_EUCKRShiftTable
};
static const PRUint16 *g_EUCKRMappingTableSet [] ={
g_AsciiMapping,
g_HangulNullMapping,
g_utKSC5601Mapping
};
//----------------------------------------------------------------------
// Class nsEUCKRToUnicode [implementation]
nsEUCKRToUnicode::nsEUCKRToUnicode()
: nsMultiTableDecoderSupport(3,
(uRange*) &g_EUCKRRanges,
(uShiftTable**) &g_EUCKRShiftTableSet,
(uMappingTable**) &g_EUCKRMappingTableSet)
{
}
//----------------------------------------------------------------------
// Subclassing of nsTablesDecoderSupport class [implementation]
NS_IMETHODIMP nsEUCKRToUnicode::GetMaxLength(const char * aSrc,
PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
// we are a single byte to Unicode converter, so...
*aDestLength = aSrcLength;
return NS_OK_UDEC_EXACTLENGTH;
}