augustine

README

Augustine

An information retrieval experiment.

Nothing to see here. Move along.

Documentation

Index

• func SearchPostings(postings []Posting, p Posting) int
• type DB
  • func Open(dir string) (*DB, error)
  • func (d *DB) Close()
  • func (d *DB) Get(id uint64) (doc *Doc, err error)
  • func (d *DB) Print()
  • func (d *DB) Put(doc *Doc) (id uint64, err error)
  • func (d *DB) Search(query []byte) []*Doc
• type Doc
  • func (d *Doc) MarshalBinary() ([]byte, error)
  • func (d *Doc) UnmarshalBinary(b []byte) error
• type FTSIndex
  • func NewFTSIndex() *FTSIndex
  • func (x *FTSIndex) Add(term string, p Posting)
  • func (x *FTSIndex) Search(terms []string) []Posting
• type Normalizer
  • func NewSimpleNormalizer() Normalizer
• type Posting
  • func (p Posting) LessEq(other Posting) bool
• type SimpleTokenReader
  • func (r *SimpleTokenReader) ReadToken() (tok []byte, err error)
• type TokenReader
  • func SimpleTokenizer(r io.Reader) TokenReader
• type Tokenizer

Functions

func SearchPostings

func SearchPostings(postings []Posting, p Posting) int

SearchPostings searches for p in a sorted slice of Postings and returns the index as specified by sort.Search.

Types

type DB

type DB struct {
	// contains filtered or unexported fields
}

func Open

func Open(dir string) (*DB, error)

func (*DB) Close

func (d *DB) Close()

func (*DB) Get

func (d *DB) Get(id uint64) (doc *Doc, err error)

func (*DB) Print

func (d *DB) Print()

func (*DB) Put

func (d *DB) Put(doc *Doc) (id uint64, err error)

func (*DB) Search

func (d *DB) Search(query []byte) []*Doc

type Doc

type Doc struct {
	Text []byte
}

func (*Doc) MarshalBinary

func (d *Doc) MarshalBinary() ([]byte, error)

func (*Doc) UnmarshalBinary

func (d *Doc) UnmarshalBinary(b []byte) error

type FTSIndex

type FTSIndex struct {
	// contains filtered or unexported fields
}

func NewFTSIndex

func NewFTSIndex() *FTSIndex

func (*FTSIndex) Add

func (x *FTSIndex) Add(term string, p Posting)

func (*FTSIndex) Search

func (x *FTSIndex) Search(terms []string) []Posting

type Normalizer

type Normalizer interface {
	Normalize(tok []byte) (terms []string)
}

func NewSimpleNormalizer

func NewSimpleNormalizer() Normalizer

type Posting

type Posting struct {
	// contains filtered or unexported fields
}

func (Posting) LessEq

func (p Posting) LessEq(other Posting) bool

type SimpleTokenReader

type SimpleTokenReader struct {
	// contains filtered or unexported fields
}

func (*SimpleTokenReader) ReadToken

func (r *SimpleTokenReader) ReadToken() (tok []byte, err error)

type TokenReader

type TokenReader interface {
	ReadToken() (tok []byte, err error)
}

func SimpleTokenizer

func SimpleTokenizer(r io.Reader) TokenReader

type Tokenizer

type Tokenizer func(io.Reader) TokenReader