bk_tree::metrics

Struct Levenshtein

Source 
pub struct Levenshtein;
Expand description

This calculates the Levenshtein distance between two strings.

The distance metric itself is calculated using the Wagner-Fischer dynamic programming algorithm.

§Examples

use bk_tree::Metric;
use bk_tree::metrics::Levenshtein;

assert_eq!(Levenshtein.distance("bar", "baz"), 1);
assert_eq!(Levenshtein.distance("kitten", "sitting"), 3);

Trait Implementations§

Source§

impl<K: AsRef<str> + ?Sized> Metric<K> for Levenshtein

Source§

fn distance(&self, a: &K, b: &K) -> u32

Source§

fn threshold_distance(&self, a: &K, b: &K, threshold: u32) -> Option<u32>

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.