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Diffstat (limited to '')
| -rw-r--r-- | sal/textenc/converter.cxx | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/sal/textenc/converter.cxx b/sal/textenc/converter.cxx new file mode 100644 index 000000000..60e6a3383 --- /dev/null +++ b/sal/textenc/converter.cxx @@ -0,0 +1,157 @@ +/* -*- 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 <o3tl/safeint.hxx> +#include <rtl/textcvt.h> +#include <sal/types.h> + +#include "converter.hxx" +#include "tenchelp.hxx" +#include "unichars.hxx" + +sal::detail::textenc::BadInputConversionAction +sal::detail::textenc::handleBadInputTextToUnicodeConversion( + bool bUndefined, bool bMultiByte, char cByte, sal_uInt32 nFlags, + sal_Unicode ** pDestBufPtr, const sal_Unicode * pDestBufEnd, sal_uInt32 * pInfo) +{ + *pInfo |= bUndefined + ? (bMultiByte + ? RTL_TEXTTOUNICODE_INFO_MBUNDEFINED + : RTL_TEXTTOUNICODE_INFO_UNDEFINED) + : RTL_TEXTTOUNICODE_INFO_INVALID; + switch (nFlags + & (bUndefined + ? (bMultiByte + ? RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_MASK + : RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MASK) + : RTL_TEXTTOUNICODE_FLAGS_INVALID_MASK)) + { + case RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR: + case RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR: + case RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR: + *pInfo |= RTL_TEXTTOUNICODE_INFO_ERROR; + return BAD_INPUT_STOP; + + case RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_IGNORE: + case RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_IGNORE: + case RTL_TEXTTOUNICODE_FLAGS_INVALID_IGNORE: + return BAD_INPUT_CONTINUE; + + case RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MAPTOPRIVATE: + if (*pDestBufPtr != pDestBufEnd) + { + *(*pDestBufPtr)++ = RTL_TEXTCVT_BYTE_PRIVATE_START + | static_cast<unsigned char>(cByte); + return BAD_INPUT_CONTINUE; + } + else + return BAD_INPUT_NO_OUTPUT; + + default: // RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_DEFAULT, + // RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_DEFAULT, + // RTL_TEXTTOUNICODE_FLAGS_INVALID_DEFAULT + if (*pDestBufPtr != pDestBufEnd) + { + *(*pDestBufPtr)++ = RTL_TEXTENC_UNICODE_REPLACEMENT_CHARACTER; + return BAD_INPUT_CONTINUE; + } + else + return BAD_INPUT_NO_OUTPUT; + } +} + +sal::detail::textenc::BadInputConversionAction +sal::detail::textenc::handleBadInputUnicodeToTextConversion( + bool bUndefined, sal_uInt32 nUtf32, sal_uInt32 nFlags, char ** pDestBufPtr, + const char * pDestBufEnd, sal_uInt32 * pInfo, char const * pPrefix, + sal_Size nPrefixLen, bool * pPrefixWritten) +{ + // TODO! RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACE + // RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACESTR + + char cReplace; + + if (bUndefined) + { + if (ImplIsControlOrFormat(nUtf32)) + { + if ((nFlags & RTL_UNICODETOTEXT_FLAGS_CONTROL_IGNORE) != 0) + nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE; + } + else if (ImplIsPrivateUse(nUtf32)) + { + if ((nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_IGNORE) != 0) + nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE; + else if ((nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_MAPTO0) != 0) + nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0; + } + else if (ImplIsZeroWidth(nUtf32)) + { + if ((nFlags & RTL_UNICODETOTEXT_FLAGS_NONSPACING_IGNORE) != 0) + nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE; + } + } + *pInfo |= bUndefined ? RTL_UNICODETOTEXT_INFO_UNDEFINED : + RTL_UNICODETOTEXT_INFO_INVALID; + switch (nFlags & (bUndefined ? RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK : + RTL_UNICODETOTEXT_FLAGS_INVALID_MASK)) + { + case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR: + case RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR: + *pInfo |= RTL_UNICODETOTEXT_INFO_ERROR; + return BAD_INPUT_STOP; + + case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE: + case RTL_UNICODETOTEXT_FLAGS_INVALID_IGNORE: + if (pPrefixWritten) + *pPrefixWritten = false; + return BAD_INPUT_CONTINUE; + + case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0: + case RTL_UNICODETOTEXT_FLAGS_INVALID_0: + cReplace = 0; + break; + + case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK: + case RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK: + default: // RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT, + // RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT + cReplace = '?'; + break; + + case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_UNDERLINE: + case RTL_UNICODETOTEXT_FLAGS_INVALID_UNDERLINE: + cReplace = '_'; + break; + } + if (o3tl::make_unsigned(pDestBufEnd - *pDestBufPtr) > nPrefixLen) + { + while (nPrefixLen-- > 0) + *(*pDestBufPtr)++ = *pPrefix++; + *(*pDestBufPtr)++ = cReplace; + if (pPrefixWritten) + *pPrefixWritten = true; + return BAD_INPUT_CONTINUE; + } + return BAD_INPUT_NO_OUTPUT; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |