1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
12 fn next_match(&mut self) -> Option<(uint, uint)>;
15 struct CharPredMatcher<'a, 'b> {
17 pred: |char|:'b -> bool
20 impl<'a, 'b> Matcher for CharPredMatcher<'a, 'b> {
21 fn next_match(&mut self) -> Option<(uint, uint)> {
26 trait IntoMatcher<'a, T> {
27 fn into_matcher(self, &'a str) -> T;
30 impl<'a, 'b> IntoMatcher<'a, CharPredMatcher<'a, 'b>> for |char|:'b -> bool {
31 fn into_matcher(self, s: &'a str) -> CharPredMatcher<'a, 'b> {
39 struct MatchIndices<M> {
43 impl<M: Matcher> Iterator<(uint, uint)> for MatchIndices<M> {
44 fn next(&mut self) -> Option<(uint, uint)> {
45 self.matcher.next_match()
49 fn match_indices<'a, M, T: IntoMatcher<'a, M>>(s: &'a str, from: T) -> MatchIndices<M> {
50 let string_matcher = from.into_matcher(s);
51 MatchIndices { matcher: string_matcher }
56 match_indices(s, |c: char| c == 'b')
57 .collect::<Vec<(uint, uint)>>();