541 lines
18 KiB
C
541 lines
18 KiB
C
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: convertiso2022kr.c,v $
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*
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* $Revision: 1.5 $
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*
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* last change: $Author: rt $ $Date: 2005-09-08 16:33:49 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef INCLUDED_RTL_TEXTENC_CONVERTISO2022KR_H
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#include "convertiso2022kr.h"
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#endif
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#ifndef INCLUDED_RTL_TEXTENC_CONTEXT_H
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#include "context.h"
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#endif
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#ifndef INCLUDED_RTL_TEXTENC_CONVERTER_H
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#include "converter.h"
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#endif
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#ifndef INCLUDED_RTL_TEXTENC_TENCHELP_H
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#include "tenchelp.h"
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#endif
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#ifndef INCLUDED_RTL_TEXTENC_UNICHARS_H
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#include "unichars.h"
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#endif
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#ifndef _RTL_ALLOC_H_
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#include "rtl/alloc.h"
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#endif
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#ifndef _RTL_TEXTCVT_H
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#include "rtl/textcvt.h"
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#endif
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#ifndef _SAL_TYPES_H_
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#include "sal/types.h"
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#endif
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typedef enum /* order is important: */
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{
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IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII,
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IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001,
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IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001_2,
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IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC,
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IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC_DOLLAR,
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IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC_DOLLAR_RPAREN
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} ImplIso2022KrToUnicodeState;
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typedef struct
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{
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ImplIso2022KrToUnicodeState m_eState;
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sal_uInt32 m_nRow;
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} ImplIso2022KrToUnicodeContext;
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typedef enum
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{
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IMPL_UNICODE_TO_ISO_2022_KR_SET_NONE,
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IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII,
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IMPL_UNICODE_TO_ISO_2022_KR_SET_1001
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} ImplUnicodeToIso2022KrSet;
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typedef struct
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{
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sal_Unicode m_nHighSurrogate;
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ImplUnicodeToIso2022KrSet m_eSet;
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} ImplUnicodeToIso2022KrContext;
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void * ImplCreateIso2022KrToUnicodeContext(void)
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{
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void * pContext
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= rtl_allocateMemory(sizeof (ImplIso2022KrToUnicodeContext));
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((ImplIso2022KrToUnicodeContext *) pContext)->m_eState
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= IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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return pContext;
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}
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void ImplResetIso2022KrToUnicodeContext(void * pContext)
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{
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if (pContext)
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((ImplIso2022KrToUnicodeContext *) pContext)->m_eState
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= IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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}
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sal_Size ImplConvertIso2022KrToUnicode(ImplTextConverterData const * pData,
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void * pContext,
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sal_Char const * pSrcBuf,
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sal_Size nSrcBytes,
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sal_Unicode * pDestBuf,
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sal_Size nDestChars,
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sal_uInt32 nFlags,
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sal_uInt32 * pInfo,
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sal_Size * pSrcCvtBytes)
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{
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ImplDBCSToUniLeadTab const * pKsX1001Data
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= ((ImplIso2022KrConverterData const *) pData)->
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m_pKsX1001ToUnicodeData;
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ImplIso2022KrToUnicodeState eState
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= IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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sal_uInt32 nRow = 0;
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sal_uInt32 nInfo = 0;
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sal_Size nConverted = 0;
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sal_Unicode * pDestBufPtr = pDestBuf;
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sal_Unicode * pDestBufEnd = pDestBuf + nDestChars;
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if (pContext)
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{
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eState = ((ImplIso2022KrToUnicodeContext *) pContext)->m_eState;
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nRow = ((ImplIso2022KrToUnicodeContext *) pContext)->m_nRow;
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}
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for (; nConverted < nSrcBytes; ++nConverted)
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{
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sal_Bool bUndefined = sal_True;
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sal_uInt32 nChar = *(sal_uChar const *) pSrcBuf++;
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switch (eState)
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{
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case IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII:
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if (nChar == 0x0E) /* SO */
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001;
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else if (nChar == 0x1B) /* ESC */
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC;
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else if (nChar < 0x80)
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if (pDestBufPtr != pDestBufEnd)
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*pDestBufPtr++ = (sal_Unicode) nChar;
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else
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goto no_output;
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else
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{
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bUndefined = sal_False;
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goto bad_input;
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}
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break;
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case IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001:
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if (nChar == 0x0F) /* SI */
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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else if (nChar >= 0x21 && nChar <= 0x7E)
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{
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nRow = nChar + 0x80;
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001_2;
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}
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else
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{
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bUndefined = sal_False;
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goto bad_input;
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}
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break;
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case IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001_2:
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if (nChar >= 0x21 && nChar <= 0x7E)
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{
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sal_uInt16 nUnicode = 0;
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sal_uInt32 nFirst = pKsX1001Data[nRow].mnTrailStart;
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nChar += 0x80;
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if (nChar >= nFirst && nChar <= pKsX1001Data[nRow].mnTrailEnd)
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nUnicode = pKsX1001Data[nRow].
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mpToUniTrailTab[nChar - nFirst];
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if (nUnicode != 0)
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if (pDestBufPtr != pDestBufEnd)
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{
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*pDestBufPtr++ = (sal_Unicode) nUnicode;
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001;
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}
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else
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goto no_output;
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else
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goto bad_input;
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}
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else
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{
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bUndefined = sal_False;
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goto bad_input;
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}
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break;
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case IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC:
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if (nChar == 0x24) /* $ */
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC_DOLLAR;
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else
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{
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bUndefined = sal_False;
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goto bad_input;
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}
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break;
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case IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC_DOLLAR:
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if (nChar == 0x29) /* ) */
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC_DOLLAR_RPAREN;
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else
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{
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bUndefined = sal_False;
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goto bad_input;
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}
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break;
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case IMPL_ISO_2022_KR_TO_UNICODE_STATE_ESC_DOLLAR_RPAREN:
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if (nChar == 0x43) /* C */
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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else
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{
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bUndefined = sal_False;
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goto bad_input;
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}
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break;
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}
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continue;
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bad_input:
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switch (ImplHandleBadInputTextToUnicodeConversion(
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bUndefined, sal_True, 0, nFlags, &pDestBufPtr, pDestBufEnd,
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&nInfo))
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{
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case IMPL_BAD_INPUT_STOP:
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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break;
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case IMPL_BAD_INPUT_CONTINUE:
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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continue;
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case IMPL_BAD_INPUT_NO_OUTPUT:
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goto no_output;
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}
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break;
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no_output:
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--pSrcBuf;
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nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
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break;
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}
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if (eState > IMPL_ISO_2022_KR_TO_UNICODE_STATE_1001
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&& (nInfo & (RTL_TEXTTOUNICODE_INFO_ERROR
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| RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL))
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== 0)
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if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) == 0)
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nInfo |= RTL_TEXTTOUNICODE_INFO_SRCBUFFERTOSMALL;
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else
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switch (ImplHandleBadInputTextToUnicodeConversion(
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sal_False, sal_True, 0, nFlags, &pDestBufPtr, pDestBufEnd,
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&nInfo))
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{
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case IMPL_BAD_INPUT_STOP:
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case IMPL_BAD_INPUT_CONTINUE:
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eState = IMPL_ISO_2022_KR_TO_UNICODE_STATE_ASCII;
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break;
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case IMPL_BAD_INPUT_NO_OUTPUT:
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nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
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break;
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}
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if (pContext)
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{
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((ImplIso2022KrToUnicodeContext *) pContext)->m_eState = eState;
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((ImplIso2022KrToUnicodeContext *) pContext)->m_nRow = nRow;
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}
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if (pInfo)
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*pInfo = nInfo;
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if (pSrcCvtBytes)
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*pSrcCvtBytes = nConverted;
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return pDestBufPtr - pDestBuf;
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}
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void * ImplCreateUnicodeToIso2022KrContext(void)
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{
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void * pContext
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= rtl_allocateMemory(sizeof (ImplUnicodeToIso2022KrContext));
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((ImplUnicodeToIso2022KrContext *) pContext)->m_nHighSurrogate = 0;
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((ImplUnicodeToIso2022KrContext *) pContext)->m_eSet
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= IMPL_UNICODE_TO_ISO_2022_KR_SET_NONE;
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return pContext;
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}
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|
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void ImplResetUnicodeToIso2022KrContext(void * pContext)
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{
|
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if (pContext)
|
|
{
|
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((ImplUnicodeToIso2022KrContext *) pContext)->m_nHighSurrogate = 0;
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((ImplUnicodeToIso2022KrContext *) pContext)->m_eSet
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= IMPL_UNICODE_TO_ISO_2022_KR_SET_NONE;
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}
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}
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|
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sal_Size ImplConvertUnicodeToIso2022Kr(ImplTextConverterData const * pData,
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void * pContext,
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sal_Unicode const * pSrcBuf,
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sal_Size nSrcChars,
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sal_Char * pDestBuf,
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sal_Size nDestBytes,
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sal_uInt32 nFlags,
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sal_uInt32 * pInfo,
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sal_Size * pSrcCvtChars)
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{
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ImplUniToDBCSHighTab const * pKsX1001Data
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= ((ImplIso2022KrConverterData const *) pData)->
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m_pUnicodeToKsX1001Data;
|
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sal_Unicode nHighSurrogate = 0;
|
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ImplUnicodeToIso2022KrSet eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_NONE;
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sal_uInt32 nInfo = 0;
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sal_Size nConverted = 0;
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sal_Char * pDestBufPtr = pDestBuf;
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sal_Char * pDestBufEnd = pDestBuf + nDestBytes;
|
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sal_Bool bWritten;
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|
|
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if (pContext)
|
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{
|
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nHighSurrogate
|
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= ((ImplUnicodeToIso2022KrContext *) pContext)->m_nHighSurrogate;
|
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eSet = ((ImplUnicodeToIso2022KrContext *) pContext)->m_eSet;
|
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}
|
|
|
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if (eSet == IMPL_UNICODE_TO_ISO_2022_KR_SET_NONE)
|
|
if (pDestBufEnd - pDestBufPtr >= 4)
|
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{
|
|
*pDestBufPtr++ = 0x1B; /* ESC */
|
|
*pDestBufPtr++ = 0x24; /* $ */
|
|
*pDestBufPtr++ = 0x29; /* ) */
|
|
*pDestBufPtr++ = 0x43; /* C */
|
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eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII;
|
|
}
|
|
else
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
|
|
if ((nInfo & RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL) == 0)
|
|
for (; nConverted < nSrcChars; ++nConverted)
|
|
{
|
|
sal_Bool bUndefined = sal_True;
|
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sal_uInt32 nChar = *pSrcBuf++;
|
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if (nHighSurrogate == 0)
|
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{
|
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if (ImplIsHighSurrogate(nChar))
|
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{
|
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nHighSurrogate = (sal_Unicode) nChar;
|
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continue;
|
|
}
|
|
}
|
|
else if (ImplIsLowSurrogate(nChar))
|
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nChar = ImplCombineSurrogates(nHighSurrogate, nChar);
|
|
else
|
|
{
|
|
bUndefined = sal_False;
|
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goto bad_input;
|
|
}
|
|
|
|
if (ImplIsLowSurrogate(nChar) || ImplIsNoncharacter(nChar))
|
|
{
|
|
bUndefined = sal_False;
|
|
goto bad_input;
|
|
}
|
|
|
|
if (nChar == 0x0A || nChar == 0x0D) /* LF, CR */
|
|
{
|
|
if (eSet == IMPL_UNICODE_TO_ISO_2022_KR_SET_1001)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
{
|
|
*pDestBufPtr++ = 0x0F; /* SI */
|
|
eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII;
|
|
}
|
|
else
|
|
goto no_output;
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = (sal_Char) nChar;
|
|
else
|
|
goto no_output;
|
|
}
|
|
else if (nChar == 0x0E || nChar == 0x0F || nChar == 0x1B)
|
|
goto bad_input;
|
|
else if (nChar < 0x80)
|
|
{
|
|
if (eSet == IMPL_UNICODE_TO_ISO_2022_KR_SET_1001)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
{
|
|
*pDestBufPtr++ = 0x0F; /* SI */
|
|
eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII;
|
|
}
|
|
else
|
|
goto no_output;
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = (sal_Char) nChar;
|
|
else
|
|
goto no_output;
|
|
}
|
|
else
|
|
{
|
|
sal_uInt16 nBytes = 0;
|
|
sal_uInt32 nIndex1 = nChar >> 8;
|
|
if (nIndex1 < 0x100)
|
|
{
|
|
sal_uInt32 nIndex2 = nChar & 0xFF;
|
|
sal_uInt32 nFirst = pKsX1001Data[nIndex1].mnLowStart;
|
|
if (nIndex2 >= nFirst
|
|
&& nIndex2 <= pKsX1001Data[nIndex1].mnLowEnd)
|
|
nBytes = pKsX1001Data[nIndex1].
|
|
mpToUniTrailTab[nIndex2 - nFirst];
|
|
}
|
|
if (nBytes != 0)
|
|
{
|
|
if (eSet == IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
{
|
|
*pDestBufPtr++ = 0x0E; /* SO */
|
|
eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_1001;
|
|
}
|
|
else
|
|
goto no_output;
|
|
if (pDestBufEnd - pDestBufPtr >= 2)
|
|
{
|
|
*pDestBufPtr++ = (sal_Char) ((nBytes >> 8) & 0x7F);
|
|
*pDestBufPtr++ = (sal_Char) (nBytes & 0x7F);
|
|
}
|
|
else
|
|
goto no_output;
|
|
}
|
|
else
|
|
goto bad_input;
|
|
}
|
|
nHighSurrogate = 0;
|
|
continue;
|
|
|
|
bad_input:
|
|
switch (ImplHandleBadInputUnicodeToTextConversion(
|
|
bUndefined,
|
|
nChar,
|
|
nFlags,
|
|
&pDestBufPtr,
|
|
pDestBufEnd,
|
|
&nInfo,
|
|
"\x0F", /* SI */
|
|
eSet == IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII ? 0 : 1,
|
|
&bWritten))
|
|
{
|
|
case IMPL_BAD_INPUT_STOP:
|
|
nHighSurrogate = 0;
|
|
break;
|
|
|
|
case IMPL_BAD_INPUT_CONTINUE:
|
|
if (bWritten)
|
|
eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII;
|
|
nHighSurrogate = 0;
|
|
continue;
|
|
|
|
case IMPL_BAD_INPUT_NO_OUTPUT:
|
|
goto no_output;
|
|
}
|
|
break;
|
|
|
|
no_output:
|
|
--pSrcBuf;
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
|
|
if ((nInfo & (RTL_UNICODETOTEXT_INFO_ERROR
|
|
| RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL))
|
|
== 0)
|
|
{
|
|
sal_Bool bFlush = sal_True;
|
|
if (nHighSurrogate != 0)
|
|
if ((nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_SRCBUFFERTOSMALL;
|
|
else
|
|
switch (ImplHandleBadInputUnicodeToTextConversion(
|
|
sal_False,
|
|
0,
|
|
nFlags,
|
|
&pDestBufPtr,
|
|
pDestBufEnd,
|
|
&nInfo,
|
|
"\x0F", /* SI */
|
|
eSet == IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII ?
|
|
0 : 1,
|
|
&bWritten))
|
|
{
|
|
case IMPL_BAD_INPUT_STOP:
|
|
nHighSurrogate = 0;
|
|
bFlush = sal_False;
|
|
break;
|
|
|
|
case IMPL_BAD_INPUT_CONTINUE:
|
|
if (bWritten)
|
|
eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII;
|
|
nHighSurrogate = 0;
|
|
break;
|
|
|
|
case IMPL_BAD_INPUT_NO_OUTPUT:
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
if (bFlush
|
|
&& eSet == IMPL_UNICODE_TO_ISO_2022_KR_SET_1001
|
|
&& (nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
|
|
{
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
{
|
|
*pDestBufPtr++ = 0x0F; /* SI */
|
|
eSet = IMPL_UNICODE_TO_ISO_2022_KR_SET_ASCII;
|
|
}
|
|
else
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
}
|
|
}
|
|
|
|
if (pContext)
|
|
{
|
|
((ImplUnicodeToIso2022KrContext *) pContext)->m_nHighSurrogate
|
|
= nHighSurrogate;
|
|
((ImplUnicodeToIso2022KrContext *) pContext)->m_eSet = eSet;
|
|
}
|
|
if (pInfo)
|
|
*pInfo = nInfo;
|
|
if (pSrcCvtChars)
|
|
*pSrcCvtChars = nConverted;
|
|
|
|
return pDestBufPtr - pDestBuf;
|
|
}
|