i18npool/inc/xdictionary.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.
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   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 #ifndef _XDICTIONARY_H_
  20 #define _XDICTIONARY_H_
  21
  22 #include <sal/types.h>
  23 #include <osl/module.h>
  24
  25 #include <com/sun/star/i18n/Boundary.hpp>
  26
  27 namespace com { namespace sun { namespace star { namespace i18n {
  28
  29 #define CACHE_MAX 32        // max cache structure number
  30 #define DEFAULT_SIZE 256    // for boundary size, to avoid alloc and release memory
  31
  32 // cache structure.
  33 struct WordBreakCache {
  34     sal_Int32 length;       // contents length saved here.
  35     sal_Unicode *contents;      // separated segment contents.
  36     sal_Int32* wordboundary;        // word boundaries in segments.
  37     sal_Int32 size;         // size of wordboundary
  38
  39     WordBreakCache();
  40     sal_Bool equals(const sal_Unicode *str, Boundary& boundary);    // checking cached string
  41 };
  42
  43 class xdictionary
  44 {
  45 private:
  46     const sal_uInt8  * existMark;
  47     const sal_Int16  * index1;
  48     const sal_Int32 * index2;
  49     const sal_Int32 * lenArray;
  50     const sal_Unicode* dataArea;
  51 #ifndef DISABLE_DYNLOADING
  52     oslModule hModule;
  53 #endif
  54     Boundary boundary;
  55     sal_Bool japaneseWordBreak;
  56
  57 public:
  58     xdictionary(const sal_Char *lang);
  59     ~xdictionary();
  60     Boundary nextWord( const OUString& rText, sal_Int32 nPos, sal_Int16 wordType);
  61     Boundary previousWord( const OUString& rText, sal_Int32 nPos, sal_Int16 wordType);
  62     Boundary getWordBoundary( const OUString& rText, sal_Int32 nPos, sal_Int16 wordType, sal_Bool bDirection );
  63     void setJapaneseWordBreak();
  64
  65 private:
  66     WordBreakCache cache[CACHE_MAX];
  67
  68     sal_Bool        seekSegment(const OUString& rText, sal_Int32 pos, Boundary& boundary);
  69     WordBreakCache& getCache(const sal_Unicode *text, Boundary& boundary);
  70     sal_Bool        exists(const sal_uInt32 u);
  71     sal_Int32       getLongestMatch(const sal_Unicode *text, sal_Int32 len);
  72 };
  73
  74 } } } }
  75
  76 #endif
  77
  78 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */