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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: */
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