weighted_trie

🦀 Rust crate that allows creating weighted prefix trees that can be used in autocomplete

Released API Docs

Quickstart

To use weigthed-trie, add the following to your Cargo.toml file:

toml [dependencies] weighted_trie = "0.1.0" # NOTE: Replace to latest minor version.

Usage overview

```rust

use weighted_trie::WeightedTrie;

fn main() { let mut trie = WeightedTrie::new(); // build trie with words and assoicated weights trie.insert("pie".toowned(), 5); trie.insert("pita".toowned(), 2); trie.insert("pi".toowned(), 1); trie.insert("pizza".toowned(), 10);

// get prefix based suggestions sorted by weight
let suggestions = trie.search("pi");
assert_eq!(suggestions, vec!["pizza", "pie", "pita", "pi"]);

let suggestions = trie.search("piz");
assert_eq!(suggestions, vec!["pizza"]);

// out of vocabulary
let suggestions = trie.search("apple");
assert_eq!(suggestions.len(), 0);

}

```

Guidelines

README.md is generated from cargo readme command. Do not manually update README.md instead edit src/lib.rs and then run cargo readme > README.md.

TODO:

1. Add tests
2. Measure memory footprint
3. Benrchmark lookup speed
4. Benchmark insert speed
5. Try low hanging fruit optimizations like usage of hashbrown instead of standart HashMap

License

License: Apache-2.0