A port of the basic features of the fuzzy_match Ruby gem to Rust.
To use the default configuration (SorensenDice then Levenshtein to break ties):
use fuzzy_match::fuzzy_match;
let haystack = vec![("rust", 0), ("java", 1), ("lisp", 2)];
assert_eq!(Some(0), fuzzy_match("bust", haystack));