Struct PrefixCounter 

pub struct PrefixCounter { /* private fields */ }

A trie-based prefix counter.

Implementations

impl PrefixCounter

pub fn new() -> Self

Creates an empty prefix counter.

pub fn record(&mut self, s: &str)

Records a string.

pub fn count_with_prefix(&self, prefix: &str) -> usize

Returns how many strings have been recorded that start with prefix.

Trait Implementations

impl Default for PrefixCounter

fn default() -> Self

Returns the “default value” for a type.