| commit | ca082c4c10a4c9da8201a6968b16a466435598de | [log] [tgz] |
|---|---|---|
| author | James Farrell <[email protected]> | Fri Aug 30 03:38:53 2024 +0000 |
| committer | Automerger Merge Worker <[email protected]> | Fri Aug 30 03:38:53 2024 +0000 |
| tree | 15e830c52bf78b20df429366d45ba3e48d15fb77 | |
| parent | 70f53810428885e11076ea3e13ea1d5104475889 [diff] | |
| parent | 3fc32ff89d57fc8c22cfb84f9370b5a9a543d8b9 [diff] |
Migrate 25 crates to monorepo. am: 3fc32ff89d Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/strsim/+/3248261 Change-Id: Ie5fd1c41b0f94cb3c1b13d78b59a852d8eaeffff Signed-off-by: Automerger Merge Worker <[email protected]>
Rust implementations of string similarity metrics:
The normalized versions return values between 0.0 and 1.0, where 1.0 means an exact match.
There are also generic versions of the functions for non-string inputs.
strsim is available on crates.io. Add it to your project:
cargo add strsim
Go to Docs.rs for the full documentation. You can also clone the repo, and run $ cargo doc --open.
extern crate strsim; use strsim::{hamming, levenshtein, normalized_levenshtein, osa_distance, damerau_levenshtein, normalized_damerau_levenshtein, jaro, jaro_winkler, sorensen_dice}; fn main() { match hamming("hamming", "hammers") { Ok(distance) => assert_eq!(3, distance), Err(why) => panic!("{:?}", why) } assert_eq!(levenshtein("kitten", "sitting"), 3); assert!((normalized_levenshtein("kitten", "sitting") - 0.571).abs() < 0.001); assert_eq!(osa_distance("ac", "cba"), 3); assert_eq!(damerau_levenshtein("ac", "cba"), 2); assert!((normalized_damerau_levenshtein("levenshtein", "löwenbräu") - 0.272).abs() < 0.001); assert!((jaro("Friedrich Nietzsche", "Jean-Paul Sartre") - 0.392).abs() < 0.001); assert!((jaro_winkler("cheeseburger", "cheese fries") - 0.911).abs() < 0.001); assert_eq!(sorensen_dice("web applications", "applications of the web"), 0.7878787878787878); }
Using the generic versions of the functions:
extern crate strsim; use strsim::generic_levenshtein; fn main() { assert_eq!(2, generic_levenshtein(&[1, 2, 3], &[0, 2, 5])); }
If you don't want to install Rust itself, you can run $ ./dev for a development CLI if you have Docker installed.
Benchmarks require a Nightly toolchain. Run $ cargo +nightly bench.