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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 part of search_engine; | |
6 | |
7 | |
8 /** | |
9 * A [SearchEngine] provides the ability to search for a given string. | |
10 */ | |
11 abstract class SearchEngine { | |
12 /** | |
13 * Get the name of the search engine. | |
14 */ | |
15 String get name; | |
16 | |
17 /** | |
18 * Perform a search for [input]. The returned [Stream] will complete | |
19 * when there are no more results. | |
20 */ | |
21 Stream<SearchResult> search(String input); | |
22 } | |
23 | |
24 | |
25 /** | |
26 * A [SearchResult] entry, returned by [SearchEngine.search]. | |
27 */ | |
28 class SearchResult { | |
29 /** | |
30 * The title of the result. | |
31 */ | |
32 final String title; | |
33 | |
34 /** | |
35 * The link of the result. | |
36 */ | |
37 final String link; | |
38 | |
39 /** | |
40 * Create a new [SearchResult] from a title and a link. | |
41 */ | |
42 SearchResult(this.title, this.link); | |
43 } | |
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