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| 1 // Copyright (c) 2014, 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 import 'util.dart'; |
| 6 import 'package:expect/expect.dart'; |
| 7 |
| 8 void main() { |
| 9 description( |
| 10 "This page tests assertions followed by quantifiers." |
| 11 ); |
| 12 |
| 13 var regexp; |
| 14 |
| 15 regexp = new RegExp(r"(?=a){0}", multiLine: true); |
| 16 shouldBeTrue(regexp.hasMatch('a')); |
| 17 |
| 18 regexp = new RegExp(r"(?=a){1}", multiLine: true); |
| 19 shouldBeTrue(regexp.hasMatch('a')); |
| 20 |
| 21 regexp = new RegExp(r"(?!a){0}", multiLine: true); |
| 22 shouldBeTrue(regexp.hasMatch('b')); |
| 23 |
| 24 regexp = new RegExp(r"(?!a){1}", multiLine: true); |
| 25 shouldBeTrue(regexp.hasMatch('b')); |
| 26 |
| 27 shouldBeTrue(new RegExp(r"^(?=a)?b$").hasMatch("b")); |
| 28 } |
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