Leaked source code of windows server 2003
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105 lines
2.3 KiB

// =================================================================================
// Internet Character Set Conversion: Output to IS-2022-KSC
// =================================================================================
#include "pch.hxx"
#include "KscOut.h"
#include "FEChrCnv.h"
int Hangeul_to_KSC (CONV_CONTEXT *pcontext, UCHAR *pHangeul, int Hangeul_len, UCHAR *pKSC, int KSC_len)
{
long lConvertedSize;
if (!KSC_len) {
// Wanted the converted size
if (!pcontext->pIncc0)
pcontext->pIncc0 = new CInccKscOut;
if (FAILED(((CInccKscOut*)pcontext->pIncc0)->GetStringSizeA(pHangeul, Hangeul_len, &lConvertedSize)))
return -1;
} else {
if (!pcontext->pIncc)
pcontext->pIncc = new CInccKscOut;
if (FAILED(((CInccKscOut*)pcontext->pIncc)->ConvertStringA(pHangeul, Hangeul_len, pKSC, KSC_len, &lConvertedSize)))
return -1;
}
if (!pHangeul) {
// Let's clean up our context here.
if (pcontext->pIncc0) {
delete pcontext->pIncc0;
pcontext->pIncc0 = NULL;
}
if (pcontext->pIncc) {
delete pcontext->pIncc;
pcontext->pIncc = NULL;
}
return 0;
}
return (int)lConvertedSize;
}
CInccKscOut::CInccKscOut()
{
fDoubleByte = FALSE;
fIsoMode = FALSE;
fKscMode = FALSE;
}
HRESULT CInccKscOut::ConvertByte(BYTE by)
{
HRESULT hr = S_OK;
if (!fIsoMode) {
(void)Output(ESC);
(void)Output(IS2022_IN_CHAR);
(void)Output(IS2022_IN_KSC_CHAR1);
(void)Output(IS2022_IN_KSC_CHAR2);
fIsoMode = TRUE;
}
if (!fDoubleByte) {
if (by > 0x80) {
fDoubleByte = TRUE;
byLead = by;
} else {
if (fIsoMode && fKscMode) {
(void)Output(SI);
fKscMode = FALSE;
}
hr = Output(by);
}
} else {
fDoubleByte = FALSE;
if (by > 0x40) { // Check if trail byte indicates Hangeul
if (!fKscMode) {
(void)Output(SO);
fKscMode = TRUE;
}
if (byLead > 0xa0 && by > 0xa0) { // Check if it's a Wansung
(void)Output(byLead & 0x7f);
hr = Output(by & 0x7f);
} else {
(void)Output(0x22); // Replace to inversed question mark
hr = Output(0x2f);
}
} else {
if (fIsoMode && fKscMode) {
(void)Output(SI);
fKscMode = FALSE;
}
(void)Output(byLead);
hr = Output(by);
}
}
return hr;
}
HRESULT CInccKscOut::CleanUp()
{
if (!fDoubleByte)
return S_OK;
else
return Output(byLead);
}