oneToOneMapping.hxx

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#ifndef INCLUDED_I18NUTIL_ONETOONEMAPPING_HXX
#define INCLUDED_I18NUTIL_ONETOONEMAPPING_HXX
 
#include <i18nutil/i18nutildllapi.h>
#include <memory>
#include <config_options.h>
 
namespace i18nutil {
 
struct OneToOneMappingTable_t
{
    sal_Unicode first;
    sal_Unicode second;
};
 
typedef sal_Int8 UnicodePairFlag;
struct UnicodePairWithFlag
{
    sal_Unicode first;
    sal_Unicode second;
    UnicodePairFlag flag;
};
 
class UNLESS_MERGELIBS(I18NUTIL_DLLPUBLIC) oneToOneMapping
{
private:
    oneToOneMapping(const oneToOneMapping&) = delete;
    oneToOneMapping& operator=(const oneToOneMapping&) = delete;
public:
    oneToOneMapping( OneToOneMappingTable_t const *rpTable, const size_t rnSize, const size_t rnUnitSize = sizeof(OneToOneMappingTable_t) );
    virtual ~oneToOneMapping();
 
    // binary search
    virtual sal_Unicode find( const sal_Unicode nKey ) const;
 
    // translator
    sal_Unicode operator[] ( const sal_Unicode nKey ) const { return find( nKey ); };
 
protected:
    OneToOneMappingTable_t const *mpTable;
    size_t                  mnSize;
};
 
class oneToOneMappingWithFlag final : public oneToOneMapping
{
private:
    oneToOneMappingWithFlag(const oneToOneMappingWithFlag&) = delete;
    oneToOneMappingWithFlag& operator=(const oneToOneMappingWithFlag&) = delete;
 
    friend class widthfolding;
 
public:
    oneToOneMappingWithFlag( UnicodePairWithFlag const *rpTableWF, const size_t rnSize, const UnicodePairFlag rnFlag );
    virtual ~oneToOneMappingWithFlag() override;
 
    // make index for fast search
    void makeIndex();
 
    // index search
    virtual sal_Unicode find( const sal_Unicode nKey ) const override;
private:
    UnicodePairWithFlag const *mpTableWF;
    UnicodePairFlag       mnFlag;
    std::unique_ptr<UnicodePairWithFlag const *[]> mpIndex[256];
    bool                  mbHasIndex;
};
 
}
 
#endif // _I18N_TRANSLITERATION_ONETOONEMAPPING_HXX_
 
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