include/i18nutil/oneToOneMapping.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   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
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  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 INCLUDED_I18NUTIL_ONETOONEMAPPING_HXX
  20 #define INCLUDED_I18NUTIL_ONETOONEMAPPING_HXX
  21
  22 #include <i18nutil/i18nutildllapi.h>
  23 #include <memory>
  24
  25 namespace i18nutil {
  26
  27 struct OneToOneMappingTable_t
  28 {
  29     sal_Unicode first;
  30     sal_Unicode second;
  31 };
  32
  33 typedef sal_Int8 UnicodePairFlag;
  34 struct UnicodePairWithFlag
  35 {
  36     sal_Unicode first;
  37     sal_Unicode second;
  38     UnicodePairFlag flag;
  39 };
  40
  41 class I18NUTIL_DLLPUBLIC oneToOneMapping
  42 {
  43 private:
  44     oneToOneMapping(const oneToOneMapping&) = delete;
  45     oneToOneMapping& operator=(const oneToOneMapping&) = delete;
  46 public:
  47     oneToOneMapping( OneToOneMappingTable_t const *rpTable, const size_t rnSize, const size_t rnUnitSize = sizeof(OneToOneMappingTable_t) );
  48     virtual ~oneToOneMapping();
  49
  50     // binary search
  51     virtual sal_Unicode find( const sal_Unicode nKey ) const;
  52
  53     // translator
  54     sal_Unicode operator[] ( const sal_Unicode nKey ) const { return find( nKey ); };
  55
  56 protected:
  57     OneToOneMappingTable_t const *mpTable;
  58     size_t                  mnSize;
  59 };
  60
  61 class I18NUTIL_DLLPUBLIC oneToOneMappingWithFlag final : public oneToOneMapping
  62 {
  63 private:
  64     oneToOneMappingWithFlag(const oneToOneMappingWithFlag&) = delete;
  65     oneToOneMappingWithFlag& operator=(const oneToOneMappingWithFlag&) = delete;
  66
  67     friend class widthfolding;
  68
  69 public:
  70     oneToOneMappingWithFlag( UnicodePairWithFlag const *rpTableWF, const size_t rnSize, const UnicodePairFlag rnFlag );
  71     virtual ~oneToOneMappingWithFlag() override;
  72
  73     // make index for fast search
  74     void makeIndex();
  75
  76     // index search
  77     virtual sal_Unicode find( const sal_Unicode nKey ) const override;
  78 private:
  79     UnicodePairWithFlag const *mpTableWF;
  80     UnicodePairFlag       mnFlag;
  81     std::unique_ptr<UnicodePairWithFlag const *[]> mpIndex[256];
  82     bool                  mbHasIndex;
  83 };
  84
  85 }
  86
  87 #endif // _I18N_TRANSLITERATION_ONETOONEMAPPING_HXX_
  88
  89 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */