fen

A Rust Forsyth-Edwards notation parser with proper error handling.

extern crate fen;

let fen = "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1";
let board = fen::BoardState::from_fen(fen).unwrap();
assert_eq!(fen, board.to_fen());

lib.rs:

This module provides a pretty straightfoward interface for converting Forsyth-Edwards notation (FEN) into the state of a game of chess and back.

FEN is a way of representing a board a string. This crate provides one such representation, fen::BoardState. If you want to be able to read FEN, you will to need to create a way to convert BoardState to your own board representation. If you want to export FEN, you will need to convert your own board representation to BoardState.