-- import "github.com/dvirsky/levenshtein"
type SparseAutomaton struct {
}
SparseAutomaton is a naive Go implementation of a levenshtein automaton using sparse vectors, as described and implemented here: http://julesjacobs.github.io/2015/06/17/disqus-levenshtein-simple-and-fast.html
func NewSparseAutomaton(s string, maxEdits int) *SparseAutomaton
NewSparseAutomaton creates a new automaton for the string s, with a given max edit distance check
func (a *SparseAutomaton) CanMatch(v sparseVector) bool
CanMatch returns true if there is a possibility that feeding the automaton with more steps will yield a match. Once CanMatch is false there is no point in continuing iteration
func (a *SparseAutomaton) IsMatch(v sparseVector) bool
IsMatch returns true if the current state vector represents a string that is within the max edit distance from the initial automaton string
func (a *SparseAutomaton) Start() sparseVector
Start initializes the automaton's state vector and returns it for further iteration
func (a *SparseAutomaton) Step(state sparseVector, c byte) sparseVector
Step returns the next state of the automaton given a pervios state and a character to check
func (a *SparseAutomaton) Transitions(v sparseVector) []byte
type Trie struct {
}
Trie holds a trie representation of a dictionary of words, for fuzzy matching against it
func NewTrie() *Trie
NewTrie creates a new empty trie
func (t *Trie) Exists(s string) bool
Exists returns true if a string exists as it is in the trie
func (t *Trie) FuzzyMatches(s string, maxDist int) []string
FuzzyMatches returns all the words in the trie that are with maxDist edit distance from s
func (t *Trie) Insert(s string)
Insert adds a string to the trie
type MinTree struct {
mafsa.MinTree
root *MinTreeNode
}
func NewMinTree([]string) (*MinTree, error)
Creates a new MinTree from a sorted list of strings. The list must be sorted because that is what the mafsa package expects.
func NewMinTreeWrite(words []string, wr io.Writer) (*MinTree, error) {
Creates a new MinTree from a sorted list of strings. The list must be sorted because that is what the mafsa package expects. After the MinTree has been successfully created, the function also writes it to the io.Writer.
func LoadMinTree(r io.Reader) (*MinTree, error)
LoadMinTree loads a MinTree from an io.Reader.
func (mt *MinTree) FuzzyMatches(s string, maxDist int) []string
FuzzyMatches returns all the words in the MinTree that are with maxDist edit distance from s