## About
It's the effective Rust implementation of phonetic Polyphon algorithm.
Original paper: [«Polyphon: An Algorithm for Phonetic String Matching in Russian Language»](https://www.researchgate.net/publication/307477428_Polyphon_An_Algorithm_for_Phonetic_String_Matching_in_Russian_Language).
Authors: Viacheslav V. Paramonov, Alexey O. Shigarov, Gennagy M. Ruzhnikov, Polina V. Belykh.
> We propose a new phonetic algorithm to string matching in Russian language without transliteration from Cyrillic to Latin characters. It is based on the rules of sounds formation in Russian language.
## Usage
Add the dependency:
```toml
[dependencies]
polyphon_rs = "1.0"
```
And then use:
```rust
use polyphon_rs::encode;
let code = encode("литие"); // -> "лата"
```
**Note:** `encode` works on a single word and removes any non-Russian characters (including spaces). If you want to encode multiple words, split them first and encode each separately.
### Code structure
- `src/lib.rs` — public interface;
- `src/normalize.rs` — normalization (incl. `normalize` function);
- `src/rules.rs` — other algorithm steps.