fst
This crate provides a fast implementation of ordered sets and maps using finite state machines. In particular, it makes use of finite state transducers to map keys to values as the machine is executed. Using finite state machines as data structures enables us to store keys in a compact format that is also easily searchable. For example, this crate leverages memory maps to make range queries very fast.
Check out my blog post Index 1,600,000,000 Keys with Automata and Rust for extensive background, examples and experiments.
Dual-licensed under MIT or the UNLICENSE.
Documentation
Full API documentation and examples.
The
fst-regex
and
fst-levenshtein
crates provide regular expression matching and fuzzy searching on FSTs,
respectively.
Installation
Simply add a corresponding entry to your Cargo.toml
dependency list:
[]
= "0.2"
And add this to your crate root:
extern crate fst;
Example
This example demonstrates building a set in memory and executing a fuzzy query against it. Check out the documentation for a lot more examples!
extern crate fst;
extern crate fst_levenshtein;
use Error;
use process;
use ;
use Levenshtein;