408 lines
14 KiB
C
408 lines
14 KiB
C
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/*************************************************************************
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*
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* $RCSfile: tcvtbyte.c,v $
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*
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* $Revision: 1.1.1.1 $
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*
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* last change: $Author: hr $ $Date: 2000-09-18 15:17:28 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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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 2000 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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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#define _RTL_TCVTBYTE_C
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#ifndef _RTL_TENCHELP_H
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#include <tenchelp.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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/* ======================================================================= */
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sal_Size ImplSymbolToUnicode( const ImplTextConverterData* pData,
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void* pContext,
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const sal_Char* pSrcBuf, sal_Size nSrcBytes,
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sal_Unicode* pDestBuf, sal_Size nDestChars,
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sal_uInt32 nFlags, sal_uInt32* pInfo,
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sal_Size* pSrcCvtBytes )
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{
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sal_uChar c;
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sal_Unicode* pEndDestBuf;
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const sal_Char* pEndSrcBuf;
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*pInfo = 0;
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pEndDestBuf = pDestBuf+nDestChars;
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pEndSrcBuf = pSrcBuf+nSrcBytes;
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while ( pSrcBuf < pEndSrcBuf )
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{
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if ( pDestBuf == pEndDestBuf )
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{
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*pInfo |= RTL_TEXTTOUNICODE_INFO_ERROR | RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
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break;
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}
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/* 0-31 (all Control-Character get the same Unicode value) */
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c = (sal_uChar)*pSrcBuf;
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if ( c <= 0x1F )
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*pDestBuf = (sal_Unicode)c;
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else
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*pDestBuf = ((sal_Unicode)c)+0xF000;
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pDestBuf++;
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pSrcBuf++;
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}
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*pSrcCvtBytes = nSrcBytes - (pEndSrcBuf-pSrcBuf);
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return (nDestChars - (pEndDestBuf-pDestBuf));
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}
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/* ----------------------------------------------------------------------- */
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sal_Size ImplUnicodeToSymbol( const ImplTextConverterData* pData,
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void* pContext,
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const sal_Unicode* pSrcBuf, sal_Size nSrcChars,
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sal_Char* pDestBuf, sal_Size nDestBytes,
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sal_uInt32 nFlags, sal_uInt32* pInfo,
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sal_Size* pSrcCvtChars )
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{
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int nAction;
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sal_Unicode c;
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sal_Char* pEndDestBuf;
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const sal_Unicode* pEndSrcBuf;
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*pInfo = 0;
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pEndDestBuf = pDestBuf+nDestBytes;
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pEndSrcBuf = pSrcBuf+nSrcChars;
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while ( pSrcBuf < pEndSrcBuf )
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{
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if ( pDestBuf == pEndDestBuf )
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{
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*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR | RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
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break;
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}
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c = *pSrcBuf;
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if ( (c >= 0xF000) && (c <= 0xF0FF) )
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{
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*pDestBuf = (sal_Char)(sal_uChar)(c-0xF000);
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pDestBuf++;
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pSrcBuf++;
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}
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// Normally 0x001F, but in many cases also symbol characters
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// are stored in the first 256 bytes, so that we don't change
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// these values
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else if ( c <= 0x00FF )
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{
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*pDestBuf = (sal_Char)(sal_uChar)c;
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pDestBuf++;
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pSrcBuf++;
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}
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else
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{
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if ( nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACE )
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{
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/* !!! */
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/* Only ascii characters < 0x1F */
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}
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/* Handle undefined and surrogates characters */
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/* (all surrogates characters are undefined) */
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nAction = ImplHandleUndefinedUnicodeToTextChar( pData,
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&pSrcBuf, pEndSrcBuf,
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&pDestBuf, pEndDestBuf,
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nFlags, pInfo );
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if ( nAction == IMPL_TEXTCVT_BREAK )
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break;
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}
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}
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*pSrcCvtChars = nSrcChars - (pEndSrcBuf-pSrcBuf);
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return (nDestBytes - (pEndDestBuf-pDestBuf));
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}
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/* ======================================================================= */
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sal_Size ImplCharToUnicode( const ImplTextConverterData* pData,
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void* pContext,
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const sal_Char* pSrcBuf, sal_Size nSrcBytes,
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sal_Unicode* pDestBuf, sal_Size nDestChars,
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sal_uInt32 nFlags, sal_uInt32* pInfo,
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sal_Size* pSrcCvtBytes )
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{
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sal_uChar c;
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sal_Unicode cConv;
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const ImplByteConvertData* pConvertData = (const ImplByteConvertData*)(pData->mpConvertTables);
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sal_Unicode* pEndDestBuf;
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const sal_Char* pEndSrcBuf;
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*pInfo = 0;
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pEndDestBuf = pDestBuf+nDestChars;
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pEndSrcBuf = pSrcBuf+nSrcBytes;
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while ( pSrcBuf < pEndSrcBuf )
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{
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c = (sal_uChar)*pSrcBuf;
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if ( c < 0x80 )
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cConv = c;
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else
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{
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if ( (c >= pConvertData->mnToUniStart1) && (c <= pConvertData->mnToUniEnd1) )
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cConv = pConvertData->mpToUniTab1[c-pConvertData->mnToUniStart1];
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else if ( (c >= pConvertData->mnToUniStart2) && (c <= pConvertData->mnToUniEnd2) )
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cConv = pConvertData->mpToUniTab2[c-pConvertData->mnToUniStart2];
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else
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cConv = 0;
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if ( !cConv )
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{
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*pInfo |= RTL_TEXTTOUNICODE_INFO_UNDEFINED;
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if ( (nFlags & RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MASK) == RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR )
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{
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*pInfo |= RTL_TEXTTOUNICODE_INFO_ERROR;
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break;
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}
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else if ( (nFlags & RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MASK) == RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_IGNORE )
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{
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pSrcBuf++;
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continue;
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}
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else
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cConv = ImplGetUndefinedUnicodeChar( c, nFlags, pData );
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}
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}
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if ( pDestBuf == pEndDestBuf )
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{
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*pInfo |= RTL_TEXTTOUNICODE_INFO_ERROR | RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
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break;
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}
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*pDestBuf = cConv;
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pDestBuf++;
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pSrcBuf++;
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}
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*pSrcCvtBytes = nSrcBytes - (pEndSrcBuf-pSrcBuf);
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return (nDestChars - (pEndDestBuf-pDestBuf));
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}
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/* ----------------------------------------------------------------------- */
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static sal_Char ImplConvertUnicodeCharToChar( const ImplByteConvertData* pConvertData,
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sal_Unicode c )
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{
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sal_Char cConv;
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const ImplUniCharTabData* pToCharExTab;
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if ( c < 0x80 )
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cConv = (sal_Char)c;
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else
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{
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if ( (c >= pConvertData->mnToCharStart1) && (c <= pConvertData->mnToCharEnd1) )
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cConv = (sal_Char)pConvertData->mpToCharTab1[c-pConvertData->mnToCharStart1];
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else if ( (c >= pConvertData->mnToCharStart2) && (c <= pConvertData->mnToCharEnd2) )
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cConv = (sal_Char)pConvertData->mpToCharTab2[c-pConvertData->mnToCharStart2];
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else
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{
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cConv = 0x00;
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pToCharExTab = pConvertData->mpToCharExTab;
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if ( pToCharExTab )
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{
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sal_uInt16 nLow;
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sal_uInt16 nHigh;
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sal_uInt16 nMid;
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sal_uInt16 nCompareChar;
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const ImplUniCharTabData* pCharExData;
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nLow = 0;
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nHigh = pConvertData->mnToCharExCount-1;
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do
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{
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nMid = (nLow+nHigh)/2;
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pCharExData = pToCharExTab+nMid;
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nCompareChar = pCharExData->mnUniChar;
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if ( c < nCompareChar )
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{
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if ( !nMid )
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break;
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nHigh = nMid-1;
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}
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else
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{
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if ( c > nCompareChar )
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nLow = nMid+1;
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else
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{
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cConv = (sal_Char)pCharExData->mnChar;
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break;
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}
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}
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}
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while ( nLow <= nHigh );
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}
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}
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}
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return cConv;
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}
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/* ----------------------------------------------------------------------- */
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sal_Size ImplUnicodeToChar( const ImplTextConverterData* pData,
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void* pContext,
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const sal_Unicode* pSrcBuf, sal_Size nSrcChars,
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sal_Char* pDestBuf, sal_Size nDestBytes,
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sal_uInt32 nFlags, sal_uInt32* pInfo,
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sal_Size* pSrcCvtChars )
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{
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int nAction;
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sal_Unicode c;
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sal_Char cConv;
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const ImplByteConvertData* pConvertData = (const ImplByteConvertData*)(pData->mpConvertTables);
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sal_Char* pEndDestBuf;
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const sal_Unicode* pEndSrcBuf;
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int i;
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int n;
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sal_uInt16 cTemp;
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sal_Char aTempBuf[IMPL_MAX_REPLACECHAR+1];
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const sal_uInt16* pReplace;
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*pInfo = 0;
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pEndDestBuf = pDestBuf+nDestBytes;
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pEndSrcBuf = pSrcBuf+nSrcChars;
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while ( pSrcBuf < pEndSrcBuf )
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{
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c = *pSrcBuf;
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if ( c < 0x80 )
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cConv = (sal_Char)c;
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else
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{
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cConv = ImplConvertUnicodeCharToChar( pConvertData, c );
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if ( !cConv )
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{
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if ( nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACE )
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{
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cTemp = ImplGetReplaceChar( c );
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if ( cTemp )
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cConv = ImplConvertUnicodeCharToChar( pConvertData, cTemp );
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}
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if ( !cConv )
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{
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if ( nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACESTR )
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{
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pReplace = ImplGetReplaceString( c );
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if ( pReplace )
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{
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i = 0;
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while ( *pReplace && (i < IMPL_MAX_REPLACECHAR) )
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{
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cConv = ImplConvertUnicodeCharToChar( pConvertData, *pReplace );
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if ( !cConv )
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break;
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aTempBuf[i] = cConv;
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pReplace++;
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i++;
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}
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if ( cConv )
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{
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if ( pDestBuf+i >= pEndDestBuf )
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{
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*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR | RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
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break;
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}
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n = 0;
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while ( n < i )
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{
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*pDestBuf = aTempBuf[n];
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pDestBuf++;
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n++;
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}
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|
pSrcBuf++;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Handle undefined and surrogates characters */
|
||
|
|
/* (all surrogates characters are undefined) */
|
||
|
|
nAction = ImplHandleUndefinedUnicodeToTextChar( pData,
|
||
|
|
&pSrcBuf, pEndSrcBuf,
|
||
|
|
&pDestBuf, pEndDestBuf,
|
||
|
|
nFlags, pInfo );
|
||
|
|
if ( nAction == IMPL_TEXTCVT_BREAK )
|
||
|
|
break;
|
||
|
|
else
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( pDestBuf == pEndDestBuf )
|
||
|
|
{
|
||
|
|
*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR | RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
*pDestBuf = cConv;
|
||
|
|
pDestBuf++;
|
||
|
|
pSrcBuf++;
|
||
|
|
}
|
||
|
|
|
||
|
|
*pSrcCvtChars = nSrcChars - (pEndSrcBuf-pSrcBuf);
|
||
|
|
return (nDestBytes - (pEndDestBuf-pDestBuf));
|
||
|
|
}
|
||
|
|
|