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		1		#ifndef BALOO_FUZZYSEARCH_H
		2		#define BALOO_FUZZYSEARCH_H
		3
		4		#include "engine_export.h"
		5
		6		#include <QString>
		7		#include <QMap>
		8		#include <QList>
		9		#include <QByteArray>
		10
		11		#include <functional>
		12
		13		namespace Baloo {
		14		class BALOO_ENGINE_EXPORT FuzzyData
		15		{
		16		public:
		17		quint64 id;
		18		quint8 wid;
		19		quint8 len;
		20
		21		bool operator==(const FuzzyData &other) const;
		22		bool operator<(const FuzzyData& other) const;
		23		};
		24
		25		class BALOO_ENGINE_EXPORT FuzzyDataList
		26		{
		27		public:
		28		QList<FuzzyData> m_datalist;
		29
		30		QByteArray into_bytes();
		31		static FuzzyData from_bytes();
		32
		33		bool operator==(const FuzzyDataList &other) const;
		34		};
		35
		36		using FuzzyFeature = QByteArray;
		37
		38		using FuzzyDataGetter =
		39		std::function<const FuzzyDataList&(const FuzzyFeature&)>;
		40
		41		class BALOO_ENGINE_EXPORT FuzzySearch
		42		{
		43		public:
		44		FuzzySearch(int tolerance);
		45
		46		static QMap<FuzzyFeature, FuzzyDataList> features(quint64 id, QStringList terms);
		47
		48		static QList<FuzzyFeature> word_to_features(const QString& word);
		49
		50		QList<quint64> search(const QString& query, const FuzzyDataGetter getter);
		51
		52		private:
		53		int m_tolerance;
		54		};
		55		}
		56
		57		#endif // BALOO_FUZZYSEARCH_H