Crate stemmer

Stemmer library

Wraps Snowball's C stemming library so it can be used safely in Rust.

The two most important methods it provides are the following:

• new, which creates a stemmer for the given language;
• stem, which returns a String containing the stem of a word.

Examples

use stemmer::Stemmer;
let mut stemmer = Stemmer::new("english").unwrap();
assert_eq!(stemmer.stem("rusted"), stemmer.stem("rust"));

Note that (since version 0.3) stem requires a mutable reference to a Stemmer. This is because there is another method:

• stem_str, which returns a &str instead of a String.

This method is less costly, but the reference it returns borrows the stemmer, so the compiler won't let you call stem or stem_str as long as it is in scope:

use stemmer::Stemmer;
let mut stemmer = Stemmer::new("english").unwrap();
let stemmed: &str = stemmer.stem_str("foo");
// stemmer.stem_str("bar"); // the compiler won't let you do this

The last useful method is:

• list, which returns a Vector containing all implemented languages.

use stemmer::Stemmer;
for language in Stemmer::list() {
  println!("{}", language);
}

Structs

Stemmer