kmpsearch

Allows searching for bytes or strings within byte slices or strings, using the Knuth Morris Pratt algorithm. KMP runs in O(n+h) time broken down as O(n) preparation, O(h) matching, where n is the length of the needle and h the length of the haystack.

Special thanks to PJB3005 for the help with AsRef which makes this library nicer to use. This is my first rust crate, so any feedback is welcome. Pull requests are accepted on github.

Usage:

Matching strings in strings

if "Hello World!".contains_needle("World") {
	println!("Matches!");
} else {
	println!("Doesn't match!");
}

Matching bytes in bytes

if b"DEADBEEF".contains_needle(b"BEEF") {
	println!("Matches!");
} else {
	println!("Doesn't match!");
}

Getting all the indexes of a string in another string

let res = "That fox is a cool fox, he knows magic".indexesof_needle("fox");
assert_eq!(res.unwrap(), vec![5, 19]);