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: Box<FnMut(char) -> bool + 'b>,
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, F> IntoMatcher<'a, CharPredMatcher<'a, 'b>> for F where F: FnMut(char) -> bool + 'b {
31 fn into_matcher(self, s: &'a str) -> CharPredMatcher<'a, 'b> {
39 struct MatchIndices<M> {
43 impl<M: Matcher> Iterator for MatchIndices<M> {
44 type Item = (uint, uint);
46 fn next(&mut self) -> Option<(uint, uint)> {
47 self.matcher.next_match()
51 fn match_indices<'a, M, T: IntoMatcher<'a, M>>(s: &'a str, from: T) -> MatchIndices<M> {
52 let string_matcher = from.into_matcher(s);
53 MatchIndices { matcher: string_matcher }
58 match_indices(s, |&mut: c: char| c == 'b')
59 .collect::<Vec<(uint, uint)>>();