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       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*************************************************************************
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       4                 :            :  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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       6                 :            :  * Copyright 2000, 2010 Oracle and/or its affiliates.
       7                 :            :  *
       8                 :            :  * OpenOffice.org - a multi-platform office productivity suite
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      12                 :            :  * OpenOffice.org is free software: you can redistribute it and/or modify
      13                 :            :  * it under the terms of the GNU Lesser General Public License version 3
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      18                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      19                 :            :  * GNU Lesser General Public License version 3 for more details
      20                 :            :  * (a copy is included in the LICENSE file that accompanied this code).
      21                 :            :  *
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      23                 :            :  * version 3 along with OpenOffice.org.  If not, see
      24                 :            :  * <http://www.openoffice.org/license.html>
      25                 :            :  * for a copy of the LGPLv3 License.
      26                 :            :  *
      27                 :            :  ************************************************************************/
      28                 :            : 
      29                 :            : #ifndef INCLUDED_SAL_TEXTENC_UNICHARS_HXX
      30                 :            : #define INCLUDED_SAL_TEXTENC_UNICHARS_HXX
      31                 :            : 
      32                 :            : #include "sal/config.h"
      33                 :            : 
      34                 :            : #include <cassert>
      35                 :            : 
      36                 :            : #include "sal/types.h"
      37                 :            : 
      38                 :            : #define RTL_TEXTENC_UNICODE_REPLACEMENT_CHARACTER 0xFFFD
      39                 :            : 
      40                 :   64910754 : inline bool ImplIsNoncharacter(sal_uInt32 nUtf32)
      41                 :            : {
      42                 :            :     return (nUtf32 >= 0xFDD0 && nUtf32 <= 0xFDEF)
      43                 :            :            || (nUtf32 & 0xFFFF) >= 0xFFFE
      44 [ +  + ][ +  - ]:   64910754 :            || nUtf32 > 0x10FFFF;
         [ +  - ][ -  + ]
      45                 :            : }
      46                 :            :     // All code points that are noncharacters, as of Unicode 3.1.1.
      47                 :            : 
      48                 :            : bool ImplIsControlOrFormat(sal_uInt32 nUtf32);
      49                 :            : 
      50                 :   65290331 : inline bool ImplIsHighSurrogate(sal_uInt32 nUtf32)
      51 [ +  + ][ +  + ]:   65290331 : { return nUtf32 >= 0xD800 && nUtf32 <= 0xDBFF; }
      52                 :            :     // All code points that are high-surrogates, as of Unicode 3.1.1.
      53                 :            : 
      54                 :   64926114 : inline bool ImplIsLowSurrogate(sal_uInt32 nUtf32)
      55 [ +  + ][ -  + ]:   64926114 : { return nUtf32 >= 0xDC00 && nUtf32 <= 0xDFFF; }
      56                 :            :     // All code points that are low-surrogates, as of Unicode 3.1.1.
      57                 :            : 
      58                 :            : bool ImplIsPrivateUse(sal_uInt32 nUtf32);
      59                 :            : 
      60                 :            : bool ImplIsZeroWidth(sal_uInt32 nUtf32);
      61                 :            : 
      62                 :         10 : inline sal_uInt32 ImplGetHighSurrogate(sal_uInt32 nUtf32)
      63                 :            : {
      64                 :            :     assert(nUtf32 >= 0x10000);
      65                 :         10 :     return ((nUtf32 - 0x10000) >> 10) | 0xD800;
      66                 :            : }
      67                 :            : 
      68                 :         10 : inline sal_uInt32 ImplGetLowSurrogate(sal_uInt32 nUtf32)
      69                 :            : {
      70                 :            :     assert(nUtf32 >= 0x10000);
      71                 :         10 :     return ((nUtf32 - 0x10000) & 0x3FF) | 0xDC00;
      72                 :            : }
      73                 :            : 
      74                 :          0 : inline sal_uInt32 ImplCombineSurrogates(sal_uInt32 nHigh, sal_uInt32 nLow)
      75                 :            : {
      76                 :            :     assert(ImplIsHighSurrogate(nHigh) && ImplIsLowSurrogate(nLow));
      77                 :          0 :     return (((nHigh & 0x3FF) << 10) | (nLow & 0x3FF)) + 0x10000;
      78                 :            : }
      79                 :            : 
      80                 :            : #endif
      81                 :            : 
      82                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */