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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_OOX_TOKEN_TOKENMAP_HXX
      21             : #define INCLUDED_OOX_TOKEN_TOKENMAP_HXX
      22             : 
      23             : #include <vector>
      24             : #include <rtl/instance.hxx>
      25             : #include <rtl/ustring.hxx>
      26             : #include <com/sun/star/uno/Sequence.hxx>
      27             : 
      28             : namespace oox {
      29             : 
      30             : 
      31             : 
      32             : class TokenMap
      33             : {
      34             : public:
      35             :     explicit            TokenMap();
      36             :                         ~TokenMap();
      37             : 
      38             :     /** Returns the Unicode name of the passed token identifier. */
      39             :     OUString     getUnicodeTokenName( sal_Int32 nToken ) const;
      40             : 
      41             :     /** Returns the token identifier for the passed Unicode token name. */
      42             :     sal_Int32           getTokenFromUnicode( const OUString& rUnicodeName ) const;
      43             : 
      44             :     /** Returns the UTF8 name of the passed token identifier as byte sequence. */
      45             :     ::com::sun::star::uno::Sequence< sal_Int8 >
      46             :                         getUtf8TokenName( sal_Int32 nToken ) const;
      47             : 
      48             :     /** Returns the token identifier for the passed UTF8 token name. */
      49           0 :     sal_Int32           getTokenFromUtf8(
      50             :                             const ::com::sun::star::uno::Sequence< sal_Int8 >& rUtf8Name ) const
      51             :     {
      52             :         return getTokenFromUTF8( reinterpret_cast< const char * >(
      53           0 :                                 rUtf8Name.getConstArray() ),
      54           0 :                              rUtf8Name.getLength() );
      55             :     }
      56             : 
      57             :     /** Returns the token identifier for a UTF8 string passed in pToken */
      58           0 :     sal_Int32 getTokenFromUTF8( const char *pToken, sal_Int32 nLength ) const
      59             :     {
      60             :         // 50% of OOXML tokens are primarily 1 lower-case character, a-z
      61           0 :         if( nLength == 1)
      62             :         {
      63           0 :             sal_Char c = pToken[0];
      64           0 :             if (c >= 'a' && c <= 'z')
      65           0 :                 return mnAlphaTokens[ c - 'a' ];
      66             :         }
      67           0 :         return getTokenPerfectHash( pToken, nLength );
      68             :     }
      69             : 
      70             : private:
      71             :     sal_Int32 getTokenPerfectHash( const char *pToken, sal_Int32 nLength ) const;
      72             : 
      73           0 :     struct TokenName
      74             :     {
      75             :         OUString maUniName;
      76             :         ::com::sun::star::uno::Sequence< sal_Int8 > maUtf8Name;
      77             :     };
      78             :     typedef ::std::vector< TokenName > TokenNameVector;
      79             : 
      80             :     TokenNameVector     maTokenNames;
      81             :     sal_Int32           mnAlphaTokens[26];
      82             : };
      83             : 
      84             : 
      85             : 
      86             : struct StaticTokenMap : public ::rtl::Static< TokenMap, StaticTokenMap > {};
      87             : 
      88             : 
      89             : 
      90             : } // namespace oox
      91             : 
      92             : #endif
      93             : 
      94             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */