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-rw-r--r--sal/textenc/converter.cxx157
1 files changed, 157 insertions, 0 deletions
diff --git a/sal/textenc/converter.cxx b/sal/textenc/converter.cxx
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+/* -*- 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: */