symspell-0.2.0 is not a library.

SymSpell

Rust implementation of brilliant SymSpell originally written in C# by @wolfgarbe.

Usage

extern crate symspell;

use symspell::{AsciiStringStrategy, SymSpell, Verbosity};

fn main() {
    let mut symspell: SymSpell<AsciiStringStrategy> = SymSpell::default();

    symspell.load_dictionary("data/frequency_dictionary_en_82_765.txt", 0, 1, " ");

    let suggestions = symspell.lookup("roket", Verbosity::Top, 2);
    println!("{:?}", suggestions);

    let sentence = "whereis th elove hehad dated forImuch of thepast who couqdn'tread in sixtgrade and ins pired him"
    let compound_suggestions = symspell.lookup_compound(sentence, 2);
    println!("{:?}", compound_suggestions);
}

N.B. the dictionary entries have to be lowercase

Advanced Usage

Using Custom Settings

let mut symspell: SymSpell<AsciiStringStrategy> = SymSpellBuilder::default()
    .max_dictionary_edit_distance(2)
    .prefix_length(7)
    .count_threshold(1)
    .build()
    .unwrap()

String Strategy

String strategy is abstraction for string manipulation, for example preprocessing.

There are two strategies included:

UnicodeiStringStrategy
- Doesn't do any prepocessing and handles strings as they are.
AsciiStringStrategy
- Transliterates strings into ASCII only characters.
- Useful when you are working with accented languages and you don't want to care about accents, etc

To configure string strategy just pass it as a type parameter:

let mut ascii_symspell: SymSpell<AsciiStringStrategy> = SymSpell::default();
let mut unicode_symspell: SymSpell<UnicodeiStringStrategy> = SymSpell::default();

Javascript Bindings

This crate can be compiled against wasm32 target and exposes a SymSpell Class that can be used from Javascript as follow.

const fs = require('fs');
const rust = require('./pkg');

let dictionary = fs.readFileSync('data/frequency_dictionary_en_82_765.txt');
let sentence = "whereis th elove hehad dated forImuch of thepast who couqdn'tread in sixtgrade and ins pired him";

let symspell = new rust.SymSpell({ is_ascii: false, max_edit_distance: 2,  prefix_length: 7,  count_threshold: 1});
symspell.load_dictionary(dictionary.buffer, { term_index: 0,  count_index: 1, separator: " "});
symspell.lookup_compound(sentence, 1);