82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef INCLUDED_SAL_TEXTENC_UNICHARS_HXX
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#define INCLUDED_SAL_TEXTENC_UNICHARS_HXX
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#include "sal/config.h"
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#include <cassert>
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#include "sal/types.h"
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#define RTL_TEXTENC_UNICODE_REPLACEMENT_CHARACTER 0xFFFD
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inline bool ImplIsNoncharacter(sal_uInt32 nUtf32)
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{
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return (nUtf32 >= 0xFDD0 && nUtf32 <= 0xFDEF)
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|| (nUtf32 & 0xFFFF) >= 0xFFFE
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|| nUtf32 > 0x10FFFF;
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}
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// All code points that are noncharacters, as of Unicode 3.1.1.
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bool ImplIsControlOrFormat(sal_uInt32 nUtf32);
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inline bool ImplIsHighSurrogate(sal_uInt32 nUtf32)
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{ return nUtf32 >= 0xD800 && nUtf32 <= 0xDBFF; }
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// All code points that are high-surrogates, as of Unicode 3.1.1.
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inline bool ImplIsLowSurrogate(sal_uInt32 nUtf32)
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{ return nUtf32 >= 0xDC00 && nUtf32 <= 0xDFFF; }
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// All code points that are low-surrogates, as of Unicode 3.1.1.
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bool ImplIsPrivateUse(sal_uInt32 nUtf32);
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bool ImplIsZeroWidth(sal_uInt32 nUtf32);
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inline sal_uInt32 ImplGetHighSurrogate(sal_uInt32 nUtf32)
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{
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assert(nUtf32 >= 0x10000);
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return ((nUtf32 - 0x10000) >> 10) | 0xD800;
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}
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inline sal_uInt32 ImplGetLowSurrogate(sal_uInt32 nUtf32)
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{
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assert(nUtf32 >= 0x10000);
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return ((nUtf32 - 0x10000) & 0x3FF) | 0xDC00;
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}
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inline sal_uInt32 ImplCombineSurrogates(sal_uInt32 nHigh, sal_uInt32 nLow)
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{
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assert(ImplIsHighSurrogate(nHigh) && ImplIsLowSurrogate(nLow));
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return (((nHigh & 0x3FF) << 10) | (nLow & 0x3FF)) + 0x10000;
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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