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Diffstat (limited to 'sal/textenc/unichars.hxx')
-rw-r--r-- | sal/textenc/unichars.hxx | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sal/textenc/unichars.hxx b/sal/textenc/unichars.hxx new file mode 100644 index 000000000..e11e47493 --- /dev/null +++ b/sal/textenc/unichars.hxx @@ -0,0 +1,66 @@ +/* -*- 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_UNICHARS_HXX +#define INCLUDED_SAL_TEXTENC_UNICHARS_HXX + +#include <sal/config.h> + +#include <cassert> + +#include <rtl/character.hxx> +#include <sal/types.h> + +#define RTL_TEXTENC_UNICODE_REPLACEMENT_CHARACTER 0xFFFD + +bool ImplIsControlOrFormat(sal_uInt32 nUtf32); + +inline bool ImplIsHighSurrogate(sal_uInt32 nUtf32) +{ return nUtf32 >= 0xD800 && nUtf32 <= 0xDBFF; } + // All code points that are high-surrogates, as of Unicode 3.1.1. + +inline bool ImplIsLowSurrogate(sal_uInt32 nUtf32) +{ return nUtf32 >= 0xDC00 && nUtf32 <= 0xDFFF; } + // All code points that are low-surrogates, as of Unicode 3.1.1. + +bool ImplIsPrivateUse(sal_uInt32 nUtf32); + +bool ImplIsZeroWidth(sal_uInt32 nUtf32); + +inline sal_uInt32 ImplGetHighSurrogate(sal_uInt32 nUtf32) +{ + assert(nUtf32 >= 0x10000); + return ((nUtf32 - 0x10000) >> 10) | 0xD800; +} + +inline sal_uInt32 ImplGetLowSurrogate(sal_uInt32 nUtf32) +{ + assert(nUtf32 >= 0x10000); + return ((nUtf32 - 0x10000) & 0x3FF) | 0xDC00; +} + +inline sal_uInt32 ImplCombineSurrogates(sal_uInt32 nHigh, sal_uInt32 nLow) +{ + assert(ImplIsHighSurrogate(nHigh) && ImplIsLowSurrogate(nLow)); + return (((nHigh & 0x3FF) << 10) | (nLow & 0x3FF)) + 0x10000; +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |