563 lines
18 KiB
C++
563 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*
|
|
* This file is part of the LibreOffice project.
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* This file incorporates work covered by the following license notice:
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
|
|
*/
|
|
|
|
#include "sal/config.h"
|
|
|
|
#include "rtl/textcvt.h"
|
|
#include "sal/types.h"
|
|
|
|
#include "converter.hxx"
|
|
#include "convertiso2022jp.hxx"
|
|
#include "tenchelp.hxx"
|
|
#include "unichars.hxx"
|
|
|
|
namespace {
|
|
|
|
enum ImplIso2022JpToUnicodeState // order is important:
|
|
{
|
|
IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII,
|
|
IMPL_ISO_2022_JP_TO_UNICODE_STATE_JIS_ROMAN,
|
|
IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208,
|
|
IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208_2,
|
|
IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC,
|
|
IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC_LPAREN,
|
|
IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC_DOLLAR
|
|
};
|
|
|
|
struct ImplIso2022JpToUnicodeContext
|
|
{
|
|
ImplIso2022JpToUnicodeState m_eState;
|
|
sal_uInt32 m_nRow;
|
|
};
|
|
|
|
struct ImplUnicodeToIso2022JpContext
|
|
{
|
|
sal_Unicode m_nHighSurrogate;
|
|
bool m_b0208;
|
|
};
|
|
|
|
}
|
|
|
|
void * ImplCreateIso2022JpToUnicodeContext()
|
|
{
|
|
ImplIso2022JpToUnicodeContext * pContext =
|
|
new ImplIso2022JpToUnicodeContext;
|
|
pContext->m_eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII;
|
|
return pContext;
|
|
}
|
|
|
|
void ImplResetIso2022JpToUnicodeContext(void * pContext)
|
|
{
|
|
if (pContext)
|
|
static_cast< ImplIso2022JpToUnicodeContext * >(pContext)->m_eState
|
|
= IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII;
|
|
}
|
|
|
|
void ImplDestroyIso2022JpToUnicodeContext(void * pContext)
|
|
{
|
|
delete static_cast< ImplIso2022JpToUnicodeContext * >(pContext);
|
|
}
|
|
|
|
sal_Size ImplConvertIso2022JpToUnicode(void const * pData,
|
|
void * pContext,
|
|
char const * pSrcBuf,
|
|
sal_Size nSrcBytes,
|
|
sal_Unicode * pDestBuf,
|
|
sal_Size nDestChars,
|
|
sal_uInt32 nFlags,
|
|
sal_uInt32 * pInfo,
|
|
sal_Size * pSrcCvtBytes)
|
|
{
|
|
ImplDBCSToUniLeadTab const * pJisX0208Data
|
|
= static_cast< ImplIso2022JpConverterData const * >(pData)->
|
|
m_pJisX0208ToUnicodeData;
|
|
ImplIso2022JpToUnicodeState eState
|
|
= IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII;
|
|
sal_uInt32 nRow = 0;
|
|
sal_uInt32 nInfo = 0;
|
|
sal_Size nConverted = 0;
|
|
sal_Unicode * pDestBufPtr = pDestBuf;
|
|
sal_Unicode * pDestBufEnd = pDestBuf + nDestChars;
|
|
|
|
if (pContext)
|
|
{
|
|
eState = static_cast< ImplIso2022JpToUnicodeContext * >(pContext)->m_eState;
|
|
nRow = static_cast< ImplIso2022JpToUnicodeContext * >(pContext)->m_nRow;
|
|
}
|
|
|
|
for (; nConverted < nSrcBytes; ++nConverted)
|
|
{
|
|
bool bUndefined = true;
|
|
sal_uInt32 nChar = *reinterpret_cast<unsigned char const *>(pSrcBuf++);
|
|
switch (eState)
|
|
{
|
|
case IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII:
|
|
if (nChar == 0x1B) // ESC
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC;
|
|
else if (nChar < 0x80)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = (sal_Unicode) nChar;
|
|
else
|
|
goto no_output;
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
break;
|
|
|
|
case IMPL_ISO_2022_JP_TO_UNICODE_STATE_JIS_ROMAN:
|
|
if (nChar == 0x1B) // ESC
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC;
|
|
else if (nChar < 0x80)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
{
|
|
switch (nChar)
|
|
{
|
|
case 0x5C: // REVERSE SOLIDUS (\)
|
|
nChar = 0xA5; // YEN SIGN
|
|
break;
|
|
|
|
case 0x7E: // ~
|
|
nChar = 0xAF; // MACRON
|
|
break;
|
|
}
|
|
*pDestBufPtr++ = (sal_Unicode) nChar;
|
|
}
|
|
else
|
|
goto no_output;
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
break;
|
|
|
|
case IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208:
|
|
if (nChar == 0x1B) // ESC
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC;
|
|
else if (nChar >= 0x21 && nChar <= 0x7E)
|
|
{
|
|
nRow = nChar;
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208_2;
|
|
}
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
break;
|
|
|
|
case IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208_2:
|
|
if (nChar >= 0x21 && nChar <= 0x7E)
|
|
{
|
|
sal_uInt16 nUnicode = 0;
|
|
sal_uInt32 nFirst = pJisX0208Data[nRow].mnTrailStart;
|
|
if (nChar >= nFirst
|
|
&& nChar <= pJisX0208Data[nRow].mnTrailEnd)
|
|
nUnicode = pJisX0208Data[nRow].
|
|
mpToUniTrailTab[nChar - nFirst];
|
|
if (nUnicode != 0)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
{
|
|
*pDestBufPtr++ = (sal_Unicode) nUnicode;
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208;
|
|
}
|
|
else
|
|
goto no_output;
|
|
else
|
|
goto bad_input;
|
|
}
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
break;
|
|
|
|
case IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC:
|
|
switch (nChar)
|
|
{
|
|
case 0x24: // $
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC_DOLLAR;
|
|
break;
|
|
|
|
case 0x28: // (
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC_LPAREN;
|
|
break;
|
|
|
|
default:
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
break;
|
|
|
|
case IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC_LPAREN:
|
|
switch (nChar)
|
|
{
|
|
case 0x42: // A
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII;
|
|
break;
|
|
|
|
case 0x4A: // J
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_JIS_ROMAN;
|
|
break;
|
|
|
|
default:
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
break;
|
|
|
|
case IMPL_ISO_2022_JP_TO_UNICODE_STATE_ESC_DOLLAR:
|
|
switch (nChar)
|
|
{
|
|
case 0x40: // @
|
|
case 0x42: // B
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208;
|
|
break;
|
|
|
|
default:
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
break;
|
|
}
|
|
continue;
|
|
|
|
bad_input:
|
|
switch (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
|
|
bUndefined, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
|
|
&nInfo))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII;
|
|
continue;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
|
|
goto no_output;
|
|
}
|
|
break;
|
|
|
|
no_output:
|
|
--pSrcBuf;
|
|
nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
|
|
if (eState > IMPL_ISO_2022_JP_TO_UNICODE_STATE_0208
|
|
&& (nInfo & (RTL_TEXTTOUNICODE_INFO_ERROR
|
|
| RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL))
|
|
== 0)
|
|
{
|
|
if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) == 0)
|
|
nInfo |= RTL_TEXTTOUNICODE_INFO_SRCBUFFERTOSMALL;
|
|
else
|
|
switch (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
|
|
false, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
|
|
&nInfo))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
eState = IMPL_ISO_2022_JP_TO_UNICODE_STATE_ASCII;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
|
|
nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pContext)
|
|
{
|
|
static_cast< ImplIso2022JpToUnicodeContext * >(pContext)->m_eState = eState;
|
|
static_cast< ImplIso2022JpToUnicodeContext * >(pContext)->m_nRow = nRow;
|
|
}
|
|
if (pInfo)
|
|
*pInfo = nInfo;
|
|
if (pSrcCvtBytes)
|
|
*pSrcCvtBytes = nConverted;
|
|
|
|
return pDestBufPtr - pDestBuf;
|
|
}
|
|
|
|
void * ImplCreateUnicodeToIso2022JpContext()
|
|
{
|
|
ImplUnicodeToIso2022JpContext * pContext =
|
|
new ImplUnicodeToIso2022JpContext;
|
|
pContext->m_nHighSurrogate = 0;
|
|
pContext->m_b0208 = false;
|
|
return pContext;
|
|
}
|
|
|
|
void ImplResetUnicodeToIso2022JpContext(void * pContext)
|
|
{
|
|
if (pContext)
|
|
{
|
|
static_cast< ImplUnicodeToIso2022JpContext * >(pContext)->m_nHighSurrogate = 0;
|
|
static_cast< ImplUnicodeToIso2022JpContext * >(pContext)->m_b0208 = false;
|
|
}
|
|
}
|
|
|
|
void ImplDestroyUnicodeToIso2022JpContext(void * pContext)
|
|
{
|
|
delete static_cast< ImplUnicodeToIso2022JpContext * >(pContext);
|
|
}
|
|
|
|
sal_Size ImplConvertUnicodeToIso2022Jp(void const * pData,
|
|
void * pContext,
|
|
sal_Unicode const * pSrcBuf,
|
|
sal_Size nSrcChars,
|
|
char * pDestBuf,
|
|
sal_Size nDestBytes,
|
|
sal_uInt32 nFlags,
|
|
sal_uInt32 * pInfo,
|
|
sal_Size * pSrcCvtChars)
|
|
{
|
|
ImplUniToDBCSHighTab const * pJisX0208Data
|
|
= static_cast< ImplIso2022JpConverterData const * >(pData)->
|
|
m_pUnicodeToJisX0208Data;
|
|
sal_Unicode nHighSurrogate = 0;
|
|
bool b0208 = false;
|
|
sal_uInt32 nInfo = 0;
|
|
sal_Size nConverted = 0;
|
|
char * pDestBufPtr = pDestBuf;
|
|
char * pDestBufEnd = pDestBuf + nDestBytes;
|
|
bool bWritten;
|
|
|
|
if (pContext)
|
|
{
|
|
nHighSurrogate
|
|
= static_cast< ImplUnicodeToIso2022JpContext * >(pContext)->m_nHighSurrogate;
|
|
b0208 = static_cast< ImplUnicodeToIso2022JpContext * >(pContext)->m_b0208;
|
|
}
|
|
|
|
for (; nConverted < nSrcChars; ++nConverted)
|
|
{
|
|
bool bUndefined = true;
|
|
sal_uInt32 nChar = *pSrcBuf++;
|
|
if (nHighSurrogate == 0)
|
|
{
|
|
if (ImplIsHighSurrogate(nChar))
|
|
{
|
|
nHighSurrogate = (sal_Unicode) nChar;
|
|
continue;
|
|
}
|
|
}
|
|
else if (ImplIsLowSurrogate(nChar))
|
|
nChar = ImplCombineSurrogates(nHighSurrogate, nChar);
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
|
|
if (ImplIsLowSurrogate(nChar) || ImplIsNoncharacter(nChar))
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
|
|
if (nChar == 0x0A || nChar == 0x0D) // LF, CR
|
|
{
|
|
if (b0208)
|
|
{
|
|
if (pDestBufEnd - pDestBufPtr >= 3)
|
|
{
|
|
*pDestBufPtr++ = 0x1B; // ESC
|
|
*pDestBufPtr++ = 0x28; // (
|
|
*pDestBufPtr++ = 0x42; // B
|
|
b0208 = false;
|
|
}
|
|
else
|
|
goto no_output;
|
|
}
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = static_cast< char >(nChar);
|
|
else
|
|
goto no_output;
|
|
}
|
|
else if (nChar == 0x1B)
|
|
goto bad_input;
|
|
else if (nChar < 0x80)
|
|
{
|
|
if (b0208)
|
|
{
|
|
if (pDestBufEnd - pDestBufPtr >= 3)
|
|
{
|
|
*pDestBufPtr++ = 0x1B; // ESC
|
|
*pDestBufPtr++ = 0x28; // (
|
|
*pDestBufPtr++ = 0x42; // B
|
|
b0208 = false;
|
|
}
|
|
else
|
|
goto no_output;
|
|
}
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = static_cast< 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 = pJisX0208Data[nIndex1].mnLowStart;
|
|
if (nIndex2 >= nFirst
|
|
&& nIndex2 <= pJisX0208Data[nIndex1].mnLowEnd)
|
|
{
|
|
nBytes = pJisX0208Data[nIndex1].
|
|
mpToUniTrailTab[nIndex2 - nFirst];
|
|
if (nBytes == 0)
|
|
// For some reason, the tables in tcvtjp4.tab do not
|
|
// include these two conversions:
|
|
switch (nChar)
|
|
{
|
|
case 0xA5: // YEN SIGN
|
|
nBytes = 0x216F;
|
|
break;
|
|
|
|
case 0xAF: // MACRON
|
|
nBytes = 0x2131;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (nBytes != 0)
|
|
{
|
|
if (!b0208)
|
|
{
|
|
if (pDestBufEnd - pDestBufPtr >= 3)
|
|
{
|
|
*pDestBufPtr++ = 0x1B; // ESC
|
|
*pDestBufPtr++ = 0x24; // $
|
|
*pDestBufPtr++ = 0x42; // B
|
|
b0208 = true;
|
|
}
|
|
else
|
|
goto no_output;
|
|
}
|
|
if (pDestBufEnd - pDestBufPtr >= 2)
|
|
{
|
|
*pDestBufPtr++ = static_cast< char >(nBytes >> 8);
|
|
*pDestBufPtr++ = static_cast< char >(nBytes & 0xFF);
|
|
}
|
|
else
|
|
goto no_output;
|
|
}
|
|
else
|
|
goto bad_input;
|
|
}
|
|
nHighSurrogate = 0;
|
|
continue;
|
|
|
|
bad_input:
|
|
switch (sal::detail::textenc::handleBadInputUnicodeToTextConversion(
|
|
bUndefined, nChar, nFlags, &pDestBufPtr, pDestBufEnd,
|
|
&nInfo, "\x1B(B", b0208 ? 3 : 0, &bWritten))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
nHighSurrogate = 0;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
if (bWritten)
|
|
b0208 = false;
|
|
nHighSurrogate = 0;
|
|
continue;
|
|
|
|
case sal::detail::textenc::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)
|
|
{
|
|
bool bFlush = true;
|
|
if (nHighSurrogate != 0)
|
|
{
|
|
if ((nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_SRCBUFFERTOSMALL;
|
|
else
|
|
switch (sal::detail::textenc::handleBadInputUnicodeToTextConversion(
|
|
false, 0, nFlags, &pDestBufPtr, pDestBufEnd, &nInfo,
|
|
"\x1B(B", b0208 ? 3 : 0, &bWritten))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
nHighSurrogate = 0;
|
|
bFlush = false;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
if (bWritten)
|
|
b0208 = false;
|
|
nHighSurrogate = 0;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
}
|
|
if (bFlush
|
|
&& b0208
|
|
&& (nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
|
|
{
|
|
if (pDestBufEnd - pDestBufPtr >= 3)
|
|
{
|
|
*pDestBufPtr++ = 0x1B; // ESC
|
|
*pDestBufPtr++ = 0x28; // (
|
|
*pDestBufPtr++ = 0x42; // B
|
|
b0208 = false;
|
|
}
|
|
else
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
}
|
|
}
|
|
|
|
if (pContext)
|
|
{
|
|
static_cast< ImplUnicodeToIso2022JpContext * >(pContext)->m_nHighSurrogate
|
|
= nHighSurrogate;
|
|
static_cast< ImplUnicodeToIso2022JpContext * >(pContext)->m_b0208 = b0208;
|
|
}
|
|
if (pInfo)
|
|
*pInfo = nInfo;
|
|
if (pSrcCvtChars)
|
|
*pSrcCvtChars = nConverted;
|
|
|
|
return pDestBufPtr - pDestBuf;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|