include/oox/token/tokenmap.hxx

   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 <oox/token/tokens.hxx>
  25 #include <rtl/instance.hxx>
  26 #include <rtl/ustring.hxx>
  27 #include <sal/log.hxx>
  28 #include <com/sun/star/uno/Sequence.hxx>
  29
  30 namespace oox {
  31
  32
  33
  34 class TokenMap
  35 {
  36 public:
  37     explicit            TokenMap();
  38                         ~TokenMap();
  39
  40     /** Returns the token identifier for the passed Unicode token name. */
  41     static sal_Int32    getTokenFromUnicode( const OUString& rUnicodeName );
  42
  43     /** Returns the UTF8 name of the passed token identifier as byte sequence. */
  44     ::com::sun::star::uno::Sequence< sal_Int8 >
  45                         getUtf8TokenName( sal_Int32 nToken ) const
  46     {
  47         SAL_WARN_IF(nToken < 0 || nToken >= XML_TOKEN_COUNT, "oox", "Wrong nToken parameter");
  48         if (0 <= nToken && nToken < XML_TOKEN_COUNT)
  49             return maTokenNames[ nToken ];
  50         return css::uno::Sequence< sal_Int8 >();
  51     }
  52
  53     /** Returns the token identifier for the passed UTF8 token name. */
  54     sal_Int32           getTokenFromUtf8(
  55                             const ::com::sun::star::uno::Sequence< sal_Int8 >& rUtf8Name ) const
  56     {
  57         return getTokenFromUTF8( reinterpret_cast< const char * >(
  58                                 rUtf8Name.getConstArray() ),
  59                              rUtf8Name.getLength() );
  60     }
  61
  62     /** Returns the token identifier for a UTF8 string passed in pToken */
  63     sal_Int32 getTokenFromUTF8( const char *pToken, sal_Int32 nLength ) const
  64     {
  65         // 50% of OOXML tokens are primarily 1 lower-case character, a-z
  66         if( nLength == 1)
  67         {
  68             sal_Char c = pToken[0];
  69             if (c >= 'a' && c <= 'z')
  70                 return mnAlphaTokens[ c - 'a' ];
  71         }
  72         return getTokenPerfectHash( pToken, nLength );
  73     }
  74
  75 private:
  76     static sal_Int32 getTokenPerfectHash( const char *pToken, sal_Int32 nLength );
  77
  78     typedef ::std::vector< ::com::sun::star::uno::Sequence< sal_Int8 > > 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: */