5a3bb76cd3
auto-rewrite with <https://gerrit.libreoffice.org/#/c/47798/> "Enable loplugin:cstylecast for some more cases" plus solenv/clang-format/reformat-formatted-files Change-Id: I7d89b011464ba5d2dd12e04d5fc9f65cb4daebde
485 lines
18 KiB
C++
485 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <cassert>
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#include <rtl/textcvt.h>
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#include <sal/types.h>
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#include "context.hxx"
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#include "convertbig5hkscs.hxx"
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#include "converter.hxx"
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#include "tenchelp.hxx"
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#include "unichars.hxx"
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namespace {
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struct ImplBig5HkscsToUnicodeContext
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{
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sal_Int32 m_nRow; // 0--255; 0 means none
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};
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}
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void * ImplCreateBig5HkscsToUnicodeContext()
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{
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ImplBig5HkscsToUnicodeContext * pContext =
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new ImplBig5HkscsToUnicodeContext;
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pContext->m_nRow = 0;
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return pContext;
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}
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void ImplResetBig5HkscsToUnicodeContext(void * pContext)
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{
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if (pContext)
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static_cast< ImplBig5HkscsToUnicodeContext * >(pContext)->m_nRow = 0;
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}
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void ImplDestroyBig5HkscsToUnicodeContext(void * pContext)
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{
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delete static_cast< ImplBig5HkscsToUnicodeContext * >(pContext);
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}
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sal_Size ImplConvertBig5HkscsToUnicode(void const * pData,
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void * pContext,
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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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sal_uInt16 const * pBig5Hkscs2001Data
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pBig5Hkscs2001ToUnicodeData;
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sal_Int32 const * pBig5Hkscs2001RowOffsets
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pBig5Hkscs2001ToUnicodeRowOffsets;
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ImplDBCSToUniLeadTab const * pBig5Data
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pBig5ToUnicodeData;
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sal_Int32 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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nRow = static_cast< ImplBig5HkscsToUnicodeContext * >(pContext)->m_nRow;
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for (; nConverted < nSrcBytes; ++nConverted)
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{
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bool bUndefined = true;
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sal_uInt32 nChar = *reinterpret_cast<unsigned char const *>(pSrcBuf++);
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if (nRow == 0)
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if (nChar < 0x80)
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if (pDestBufPtr != pDestBufEnd)
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*pDestBufPtr++ = static_cast<sal_Unicode>(nChar);
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else
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goto no_output;
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else if (nChar >= 0x81 && nChar <= 0xFE)
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nRow = nChar;
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else
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{
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bUndefined = false;
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goto bad_input;
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}
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else
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if ((nChar >= 0x40 && nChar <= 0x7E)
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|| (nChar >= 0xA1 && nChar <= 0xFE))
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{
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sal_uInt32 nUnicode = 0xFFFF;
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sal_Int32 nOffset = pBig5Hkscs2001RowOffsets[nRow];
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sal_uInt32 nFirst=0;
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sal_uInt32 nLast=0;
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if (nOffset != -1)
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{
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sal_uInt32 nFirstLast = pBig5Hkscs2001Data[nOffset++];
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nFirst = nFirstLast & 0xFF;
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nLast = nFirstLast >> 8;
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if (nChar >= nFirst && nChar <= nLast)
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nUnicode
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= pBig5Hkscs2001Data[nOffset + (nChar - nFirst)];
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}
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if (nUnicode == 0xFFFF)
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{
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sal_uInt32 n = pBig5Data[nRow].mnTrailStart;
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if (nChar >= n && nChar <= pBig5Data[nRow].mnTrailEnd)
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{
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nUnicode = pBig5Data[nRow].mpToUniTrailTab[nChar - n];
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if (nUnicode == 0)
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nUnicode = 0xFFFF;
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assert(!ImplIsHighSurrogate(nUnicode));
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}
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}
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if (nUnicode == 0xFFFF)
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{
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ImplDBCSEUDCData const * p
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pEudcData;
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sal_uInt32 nCount
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_nEudcCount;
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sal_uInt32 i;
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for (i = 0; i < nCount; ++i)
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{
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if (nRow >= p->mnLeadStart && nRow <= p->mnLeadEnd)
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{
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if (nChar < p->mnTrail1Start)
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break;
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if (nChar <= p->mnTrail1End)
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{
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nUnicode
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= p->mnUniStart
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+ (nRow - p->mnLeadStart)
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* p->mnTrailRangeCount
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+ (nChar - p->mnTrail1Start);
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break;
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}
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if (p->mnTrailCount < 2
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|| nChar < p->mnTrail2Start)
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break;
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if (nChar <= p->mnTrail2End)
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{
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nUnicode
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= p->mnUniStart
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+ (nRow - p->mnLeadStart)
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* p->mnTrailRangeCount
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+ (nChar - p->mnTrail2Start)
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+ (p->mnTrail1End - p->mnTrail1Start
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+ 1);
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break;
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}
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if (p->mnTrailCount < 3
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|| nChar < p->mnTrail3Start)
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break;
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if (nChar <= p->mnTrail3End)
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{
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nUnicode
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= p->mnUniStart
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+ (nRow - p->mnLeadStart)
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* p->mnTrailRangeCount
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+ (nChar - p->mnTrail3Start)
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+ (p->mnTrail1End - p->mnTrail1Start
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+ 1)
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+ (p->mnTrail2End - p->mnTrail2Start
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+ 1);
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break;
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}
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break;
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}
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++p;
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}
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assert(!ImplIsHighSurrogate(nUnicode));
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}
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if (nUnicode == 0xFFFF)
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goto bad_input;
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if (ImplIsHighSurrogate(nUnicode))
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if (pDestBufEnd - pDestBufPtr >= 2)
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{
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nOffset += nLast - nFirst + 1;
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nFirst = pBig5Hkscs2001Data[nOffset++];
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*pDestBufPtr++ = static_cast<sal_Unicode>(nUnicode);
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*pDestBufPtr++
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= static_cast<sal_Unicode>(pBig5Hkscs2001Data[
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nOffset + (nChar - nFirst)]);
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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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if (pDestBufPtr != pDestBufEnd)
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*pDestBufPtr++ = static_cast<sal_Unicode>(nUnicode);
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else
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goto no_output;
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nRow = 0;
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}
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else
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{
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bUndefined = false;
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goto bad_input;
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}
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continue;
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bad_input:
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switch (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
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bUndefined, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
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&nInfo))
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{
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case sal::detail::textenc::BAD_INPUT_STOP:
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nRow = 0;
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break;
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case sal::detail::textenc::BAD_INPUT_CONTINUE:
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nRow = 0;
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continue;
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case sal::detail::textenc::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_DESTBUFFERTOOSMALL;
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break;
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}
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if (nRow != 0
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&& (nInfo & (RTL_TEXTTOUNICODE_INFO_ERROR
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| RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOOSMALL))
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== 0)
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{
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if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) == 0)
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nInfo |= RTL_TEXTTOUNICODE_INFO_SRCBUFFERTOOSMALL;
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else
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switch (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
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false, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
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&nInfo))
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{
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case sal::detail::textenc::BAD_INPUT_STOP:
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case sal::detail::textenc::BAD_INPUT_CONTINUE:
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nRow = 0;
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break;
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case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
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nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOOSMALL;
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break;
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}
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}
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if (pContext)
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static_cast< ImplBig5HkscsToUnicodeContext * >(pContext)->m_nRow = nRow;
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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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sal_Size ImplConvertUnicodeToBig5Hkscs(void 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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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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sal_uInt16 const * pBig5Hkscs2001Data
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pUnicodeToBig5Hkscs2001Data;
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sal_Int32 const * pBig5Hkscs2001PageOffsets
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pUnicodeToBig5Hkscs2001PageOffsets;
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sal_Int32 const * pBig5Hkscs2001PlaneOffsets
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pUnicodeToBig5Hkscs2001PlaneOffsets;
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ImplUniToDBCSHighTab const * pBig5Data
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pUnicodeToBig5Data;
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sal_Unicode nHighSurrogate = 0;
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sal_uInt32 nInfo = 0;
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sal_Size nConverted = 0;
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char * pDestBufPtr = pDestBuf;
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char * pDestBufEnd = pDestBuf + nDestBytes;
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if (pContext)
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nHighSurrogate
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= static_cast<ImplUnicodeToTextContext *>(pContext)->m_nHighSurrogate;
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for (; nConverted < nSrcChars; ++nConverted)
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{
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bool bUndefined = 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 = static_cast<sal_Unicode>(nChar);
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continue;
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}
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}
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else if (ImplIsLowSurrogate(nChar))
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nChar = ImplCombineSurrogates(nHighSurrogate, nChar);
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else
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{
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bUndefined = false;
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goto bad_input;
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}
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if (ImplIsLowSurrogate(nChar) || ImplIsNoncharacter(nChar))
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{
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bUndefined = false;
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goto bad_input;
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}
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if (nChar < 0x80)
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if (pDestBufPtr != pDestBufEnd)
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*pDestBufPtr++ = static_cast< char >(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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sal_uInt32 nBytes = 0;
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sal_Int32 nOffset = pBig5Hkscs2001PlaneOffsets[nChar >> 16];
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if (nOffset != -1)
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{
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nOffset
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= pBig5Hkscs2001PageOffsets[nOffset + ((nChar & 0xFF00)
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>> 8)];
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if (nOffset != -1)
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{
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sal_uInt32 nFirstLast = pBig5Hkscs2001Data[nOffset++];
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sal_uInt32 nFirst = nFirstLast & 0xFF;
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sal_uInt32 nLast = nFirstLast >> 8;
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sal_uInt32 nIndex = nChar & 0xFF;
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if (nIndex >= nFirst && nIndex <= nLast)
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{
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nBytes
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= pBig5Hkscs2001Data[nOffset + (nIndex - nFirst)];
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}
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}
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}
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if (nBytes == 0)
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{
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sal_uInt32 nIndex1 = nChar >> 8;
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if (nIndex1 < 0x100)
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{
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sal_uInt32 nIndex2 = nChar & 0xFF;
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sal_uInt32 nFirst = pBig5Data[nIndex1].mnLowStart;
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if (nIndex2 >= nFirst
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&& nIndex2 <= pBig5Data[nIndex1].mnLowEnd)
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nBytes = pBig5Data[nIndex1].
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mpToUniTrailTab[nIndex2 - nFirst];
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}
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}
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if (nBytes == 0)
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{
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ImplDBCSEUDCData const * p
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_pEudcData;
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sal_uInt32 nCount
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= static_cast< ImplBig5HkscsConverterData const * >(pData)->
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m_nEudcCount;
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sal_uInt32 i;
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for (i = 0; i < nCount; ++i) {
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if (nChar >= p->mnUniStart && nChar <= p->mnUniEnd)
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{
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sal_uInt32 nIndex = nChar - p->mnUniStart;
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sal_uInt32 nLeadOff = nIndex / p->mnTrailRangeCount;
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sal_uInt32 nTrailOff = nIndex % p->mnTrailRangeCount;
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sal_uInt32 nSize;
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nBytes = (p->mnLeadStart + nLeadOff) << 8;
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nSize = p->mnTrail1End - p->mnTrail1Start + 1;
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if (nTrailOff < nSize)
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{
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nBytes |= p->mnTrail1Start + nTrailOff;
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break;
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}
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nTrailOff -= nSize;
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nSize = p->mnTrail2End - p->mnTrail2Start + 1;
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if (nTrailOff < nSize)
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{
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nBytes |= p->mnTrail2Start + nTrailOff;
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break;
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}
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nTrailOff -= nSize;
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nBytes |= p->mnTrail3Start + nTrailOff;
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break;
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}
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++p;
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}
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}
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if (nBytes == 0)
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goto bad_input;
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if (pDestBufEnd - pDestBufPtr >= 2)
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{
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*pDestBufPtr++ = static_cast< char >(nBytes >> 8);
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*pDestBufPtr++ = static_cast< char >(nBytes & 0xFF);
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}
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else
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goto no_output;
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}
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nHighSurrogate = 0;
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continue;
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bad_input:
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switch (sal::detail::textenc::handleBadInputUnicodeToTextConversion(
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bUndefined, nChar, nFlags, &pDestBufPtr, pDestBufEnd,
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&nInfo, nullptr, 0, nullptr))
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{
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case sal::detail::textenc::BAD_INPUT_STOP:
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nHighSurrogate = 0;
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break;
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case sal::detail::textenc::BAD_INPUT_CONTINUE:
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nHighSurrogate = 0;
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continue;
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case sal::detail::textenc::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_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
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break;
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}
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if (nHighSurrogate != 0
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&& (nInfo & (RTL_UNICODETOTEXT_INFO_ERROR
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| RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL))
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== 0)
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{
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if ((nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
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nInfo |= RTL_UNICODETOTEXT_INFO_SRCBUFFERTOSMALL;
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else
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switch (sal::detail::textenc::handleBadInputUnicodeToTextConversion(
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false, 0, nFlags, &pDestBufPtr, pDestBufEnd, &nInfo,
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nullptr, 0, nullptr))
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{
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case sal::detail::textenc::BAD_INPUT_STOP:
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case sal::detail::textenc::BAD_INPUT_CONTINUE:
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nHighSurrogate = 0;
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break;
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case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
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nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
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break;
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}
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}
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if (pContext)
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static_cast<ImplUnicodeToTextContext *>(pContext)->m_nHighSurrogate
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= nHighSurrogate;
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if (pInfo)
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*pInfo = nInfo;
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if (pSrcCvtChars)
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*pSrcCvtChars = nConverted;
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return pDestBufPtr - pDestBuf;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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