include/i18nutil/oneToOneMapping.hxx

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