This crate allows you to split an iterator into contiguous spans.
Import the Spans trait to extend Iterator:
use spans::Spans;Now you can use Spans::spans_by_key to split an iterator into contiguous spans:
let vec = vec![1, 2, 5, 6, 7, 11, 13, 14, 15];
let mut spans = vec.iter().spans_by_key(|&&x| x, |a, b| a + 1 == b);
while let Some(span) = spans.next() {
println!("span = {:?}", span.collect::<Vec<_>>());
}The code above splits the vector into spans where each item is 1 larger than the proceeding item. The following text is printed:
span = [1, 2]
span = [5, 6, 7]
span = [11]
span = [13, 14, 15]
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
Many thanks to Matt Brubeck for helping me so generously on the Rust users forum.