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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /sal/textenc/convertsinglebytetobmpunicode.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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 .
+ */
+
+#ifndef INCLUDED_SAL_TEXTENC_CONVERTSINGLEBYTETOBMPUNICODE_HXX
+#define INCLUDED_SAL_TEXTENC_CONVERTSINGLEBYTETOBMPUNICODE_HXX
+
+#include <sal/config.h>
+
+#include <cstddef>
+
+#include <sal/types.h>
+
+
+/// @HTML
+
+namespace rtl::textenc {
+
+/**
+ Maps a range of BMP Unicode code points to individual bytes.
+
+ @see rtl::textenc::BmpUnicodeToSingleByteConverterData
+ */
+struct BmpUnicodeToSingleByteRange {
+ /**
+ The start of the range of BMP Unicode code points.
+ */
+ sal_Unicode unicode;
+
+ /**
+ The extend of the range of BMP Unicode code points.
+
+ <p>The range covers <code>unicode</code> to <code>unicode + range</code>,
+ inclusive. It is an error if <code>unicode + range</code> is greater
+ than <code>0xFFFF</code>.</p>
+ */
+ sal_uInt8 range;
+
+ /**
+ The start of the corresponding range of individual bytes.
+
+ <p>It is an error if <code>byte + range</code> is greater than
+ <code>0xFF</code>.</p>
+ */
+ sal_uInt8 byte;
+};
+
+/**
+ Data to convert between BMP Unicode and a single-byte character set.
+
+ <p>Only supports conversions where each legal unit from the single-byte
+ character set has one or more mappings to individual BMP Unicode code points
+ that are neither noncharacters nor surrogates.</p>
+
+ @see rtl_textenc_convertSingleByteToBmpUnicode
+ @see rtl_textenc_convertBmpUnicodeToSingleByte
+ */
+struct BmpUnicodeToSingleByteConverterData {
+ /**
+ Mapping from the single-byte character set to BMP Unicode code points.
+
+ <p>Illegal units from the single-byte character set are mapped to
+ <code>0xFFFF</code>.</p>
+ */
+ sal_Unicode byteToUnicode[256];
+
+ /**
+ The number of Unicode-to-byte conversion ranges.
+ */
+ std::size_t unicodeToByteEntries;
+
+ /**
+ The array of Unicode-to-byte conversion ranges, sorted by increasing
+ <code>unicode</code> values.
+
+ <p>The ranges may not overlap.</p>
+ */
+ BmpUnicodeToSingleByteRange const * unicodeToByte;
+};
+
+}
+
+/**
+ Function to convert from a single-byte character set to BMP Unicode.
+
+ @see ImplConvertToUnicodeProc
+ */
+sal_Size rtl_textenc_convertSingleByteToBmpUnicode(
+ void const * data, void * context, char const * srcBuf,
+ sal_Size srcBytes, sal_Unicode * destBuf, sal_Size destChars,
+ sal_uInt32 flags, sal_uInt32 * info, sal_Size * srcCvtBytes);
+
+/**
+ Function to convert from BMP Unicode to a single-byte character set.
+
+ @see ImplConvertToTextProc
+ */
+sal_Size rtl_textenc_convertBmpUnicodeToSingleByte(
+ void const * data, void * context,
+ sal_Unicode const * srcBuf, sal_Size srcChars, char * destBuf,
+ sal_Size destBytes, sal_uInt32 flags, sal_uInt32 * info,
+ sal_Size * srcCvtChars);
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */