Trait std::str::pattern::ReverseSearcher

pub unsafe trait ReverseSearcher<'a>: Searcher<'a> {
    fn next_back(&mut self) -> SearchStep;

    fn next_match_back(&mut self) -> Option<(usize, usize)> { ... }
    fn next_reject_back(&mut self) -> Option<(usize, usize)> { ... }
}

A reverse searcher for a string pattern.

This trait provides methods for searching for non-overlapping matches of a pattern starting from the back (right) of a string.

It will be implemented by associated Searcher types of the Pattern trait if the pattern supports searching for it from the back.

The index ranges returned by this trait are not required to exactly match those of the forward search in reverse.

For the reason why this trait is marked unsafe, see them parent trait Searcher.

Required methods

Provided methods

Implementors