Crate substring

Substring method for string types.

This crate provides a substring method on Rust string types. The method takes a start and end character index and returns a string slice of the characters within that range.

The method is provided via the Substring trait which is implemented on the &str primitive.

Example

use substring::Substring;

// Works on a string slice.
assert_eq!("foobar".substring(2,5), "oba");

// Also works on a String.
assert_eq!("foobar".to_string().substring(1,6), "oobar");

As Rust strings are UTF-8 encoded, the algorithm for finding a character substring is O(n), where n is the byte length of the string. This is due to characters not being of predictible byte lengths.

Traits

Substring

Provides a substring method.