283 lines
9.6 KiB
C++
283 lines
9.6 KiB
C++
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#include "private.h"
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#include "jisobj.h"
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#include "eucjobj.h"
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#include "hzgbobj.h"
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#include "kscobj.h"
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#include "utf8obj.h"
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#include "utf7obj.h"
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#include "fechrcnv.h"
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#include "codepage.h"
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#include "ichrcnv.h"
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HRESULT CICharConverter::KSC5601ToEUCKR(LPCSTR lpSrcStr, LPINT lpnSrcSize, LPSTR lpDestStr, int cchDest, LPINT lpnSize)
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{
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int nSize=0;
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int i=0;
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HRESULT hr = S_OK;
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UCHAR szDefaultChar[3] = {0x3f}; // possible DBCS + null
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if (_lpFallBack && (_dwFlag & MLCONVCHARF_USEDEFCHAR))
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{
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// only take SBCS, no DBCS character
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if ( 1 != WideCharToMultiByte(CP_KOR_5601, 0,
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(LPCWSTR)_lpFallBack, 1,
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(LPSTR)szDefaultChar, ARRAYSIZE(szDefaultChar), NULL, NULL ))
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szDefaultChar[0] = 0x3f;
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}
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while(i < *lpnSrcSize)
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{
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// Check space
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if (lpDestStr && (nSize > cchDest))
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break;
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// DBCS
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if (((UCHAR)lpSrcStr[i] >= 0x81 && (UCHAR)lpSrcStr[i] <= 0xFE) && (i+1 < *lpnSrcSize))
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{
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// UHC
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if (!((UCHAR)lpSrcStr[i] >= 0xA1 && (UCHAR)lpSrcStr[i] <= 0xFE &&
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(UCHAR)lpSrcStr[i+1] >= 0xA1 && (UCHAR)lpSrcStr[i+1] <= 0xFE))
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{
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// use NCR if flag specified
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if (_dwFlag & (MLCONVCHARF_NCR_ENTITIZE|MLCONVCHARF_NAME_ENTITIZE))
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{
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char szDstStr[10] = {0};
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WCHAR szwChar[2];
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int cCount;
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if (MultiByteToWideChar(CP_KOR_5601, 0, &lpSrcStr[i], 2, szwChar, ARRAYSIZE(szwChar)))
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{
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// Caculate NCR length
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_ultoa((unsigned long)szwChar[0], (char*)szDstStr, 10);
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cCount = lstrlenA(szDstStr)+3;
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// Not enough space for NCR entity
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if (lpDestStr)
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{
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if (nSize+cCount > cchDest)
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break;
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// Output NCR entity
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else
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{
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*lpDestStr ++= '&';
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*lpDestStr ++= '#';
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for (int j=0; j< cCount-3; j++)
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*lpDestStr++=szDstStr[j];
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*lpDestStr ++= ';';
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}
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}
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nSize += cCount;
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}
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else
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{
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if (lpDestStr)
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{
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if (nSize+1 > cchDest)
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break;
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*lpDestStr++=szDefaultChar[0];
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}
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nSize++;
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hr = S_FALSE;
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}
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}
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// use default char, question mark
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else
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{
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if (lpDestStr)
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{
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if (nSize+1 > cchDest)
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break;
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*lpDestStr++=szDefaultChar[0];
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}
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nSize++;
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hr = S_FALSE;
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}
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i += 2;
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}
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// Wansung
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else
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{
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if (lpDestStr)
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{
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if (nSize+2 > cchDest)
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break;
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*lpDestStr++=lpSrcStr[i];
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*lpDestStr++=lpSrcStr[i+1];
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}
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i+=2;
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nSize += 2;
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}
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}
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// SBCS
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else
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{
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if (lpDestStr)
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{
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if (nSize+1 > cchDest)
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break;
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*lpDestStr++=lpSrcStr[i];
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}
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nSize++;
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i++;
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}
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} // End of loop
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if (lpnSize)
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*lpnSize = nSize;
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return hr;
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}
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/******************************************************************************
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****************** C O N V E R T I N E T S T R I N G ******************
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******************************************************************************/
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HRESULT CICharConverter::CreateINetString(BOOL fInbound, UINT uCodePage, int nCodeSet)
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{
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if (_hcins)
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{
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delete _hcins ;
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_hcins = NULL ;
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}
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if (fInbound) { // Inbound
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if (uCodePage == CP_JPN_SJ && ( nCodeSet == CP_ISO_2022_JP ||
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nCodeSet == CP_ISO_2022_JP_ESC || nCodeSet == CP_ISO_2022_JP_SIO ))
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// JIS
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_hcins = new CInccJisIn(uCodePage, nCodeSet);
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else if (uCodePage == CP_JPN_SJ && nCodeSet == CP_EUC_JP ) // EUC
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_hcins = new CInccEucJIn(uCodePage, nCodeSet);
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else if (uCodePage == CP_CHN_GB && nCodeSet == CP_CHN_HZ ) // HZ-GB
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_hcins = new CInccHzGbIn(uCodePage, nCodeSet);
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else if (uCodePage == CP_KOR_5601 && nCodeSet == CP_ISO_2022_KR )
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_hcins = new CInccKscIn(uCodePage, nCodeSet);
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else if (uCodePage == CP_UCS_2 && nCodeSet == CP_UTF_8 )
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_hcins = new CInccUTF8In(uCodePage, nCodeSet);
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else if (uCodePage == CP_UCS_2 && nCodeSet == CP_UTF_7 )
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_hcins = new CInccUTF7In(uCodePage, nCodeSet);
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} else { // Outbound
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if (uCodePage == CP_JPN_SJ && ( nCodeSet == CP_ISO_2022_JP ||
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nCodeSet == CP_ISO_2022_JP_ESC || nCodeSet == CP_ISO_2022_JP_SIO ))
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// JIS
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_hcins = new CInccJisOut(uCodePage, nCodeSet, _dwFlag, _lpFallBack);
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else if (uCodePage == CP_JPN_SJ && nCodeSet == CP_EUC_JP ) // EUC
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_hcins = new CInccEucJOut(uCodePage, nCodeSet, _dwFlag, _lpFallBack);
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else if (uCodePage == CP_CHN_GB && nCodeSet == CP_CHN_HZ ) // HZ-GB
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_hcins = new CInccHzGbOut(uCodePage, nCodeSet, _dwFlag, _lpFallBack);
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else if (uCodePage == CP_KOR_5601 && nCodeSet == CP_ISO_2022_KR )
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_hcins = new CInccKscOut(uCodePage, nCodeSet, _dwFlag, _lpFallBack);
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else if (uCodePage == CP_UCS_2 && nCodeSet == CP_UTF_8 )
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_hcins = new CInccUTF8Out(uCodePage, nCodeSet);
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else if (uCodePage == CP_UCS_2 && nCodeSet == CP_UTF_7 )
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_hcins = new CInccUTF7Out(uCodePage, nCodeSet);
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}
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// recode the dst codepage
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if ( _hcins )
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_hcins_dst = nCodeSet ;
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return S_OK ;
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}
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HRESULT CICharConverter::DoConvertINetString(LPDWORD lpdwMode, BOOL fInbound, UINT uCodePage, int nCodeSet,
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LPCSTR lpSrcStr, LPINT lpnSrcSize, LPSTR lpDestStr, int cchDest, LPINT lpnSize)
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{
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HRESULT hr = S_OK;
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HCINS hcins = NULL;
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int nSize = 0 ;
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int cchSrc = *lpnSrcSize ;
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if (!lpnSize)
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lpnSize = &nSize;
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if (!uCodePage) // Get default code page if nothing speicified
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uCodePage = g_uACP;
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if (!lpSrcStr && cchSrc < 0) // Get length of lpSrcStr if not given, assuming lpSrcStr is a zero terminate string.
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cchSrc = lstrlenA(lpSrcStr) + 1;
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if (!_hcins || ( nCodeSet != _hcins_dst ) )
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CreateINetString(fInbound,uCodePage,nCodeSet);
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if (_hcins ) { // Context created, it means DBCS
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int nTempSize = 0 ;
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// restore previous mode SO/SI ESC etc.
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((CINetCodeConverter*)_hcins)->SetConvertMode(*lpdwMode);
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// if it is a JIS output set Kana mode
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if (!fInbound && uCodePage == CP_JPN_SJ && ( nCodeSet == CP_ISO_2022_JP ||
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nCodeSet == CP_ISO_2022_JP_ESC || nCodeSet == CP_ISO_2022_JP_SIO ))
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// JIS
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((CInccJisOut*)_hcins)->SetKanaMode(nCodeSet);
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if (!lpDestStr || !cchDest) // Get the converted size
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{
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hr = ((CINetCodeConverter*)_hcins)->GetStringSizeA(lpSrcStr, cchSrc, lpnSize);
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if (0 == fInbound)
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{
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HRESULT _hr = ((CINetCodeConverter*)_hcins)->GetStringSizeA(NULL, 0, &nTempSize);
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if (S_OK != _hr)
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hr = _hr;
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}
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}
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else // Perform actual converting
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{
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hr = ((CINetCodeConverter*)_hcins)->ConvertStringA(lpSrcStr, cchSrc, lpDestStr, cchDest, lpnSize);
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if (0 == fInbound)
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{
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HRESULT _hr = ((CINetCodeConverter*)_hcins)->ConvertStringA(NULL, 0, lpDestStr+*lpnSize, cchDest-*lpnSize, &nTempSize);
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if (S_OK != _hr)
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hr = _hr;
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}
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}
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*lpnSize += nTempSize;
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// get number of unconvetable bytes
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if ( lpnSrcSize && ((CINetCodeConverter*)_hcins)->GetUnconvertBytes() )
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*lpnSrcSize = cchSrc -((CINetCodeConverter*)_hcins)->GetUnconvertBytes();
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// only save current mode SO/SI ESC if we are perform actual converting
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// we need this if statement because for two stages plus conversion.
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// It will inquire the size first then convert from IWUU or UUWI.
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if (lpDestStr && lpdwMode )
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*lpdwMode = ((CINetCodeConverter*)_hcins)->GetConvertMode();
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// delete hcins;
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} else {
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// Internet encodings that have same encoding scheme as their family encodings
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switch (nCodeSet)
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{
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case CP_EUC_KR:
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hr = KSC5601ToEUCKR(lpSrcStr, lpnSrcSize, lpDestStr, cchDest, lpnSize);
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break;
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default:
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if (!lpDestStr || !cchDest) // Get the converted size
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*lpnSize = cchSrc ;
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else
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{
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*lpnSize = min(cchSrc, cchDest);
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if (*lpnSize)
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MoveMemory(lpDestStr, lpSrcStr, *lpnSize);
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}
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}
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}
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return hr;
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}
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