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4eda30c5c2
Change-Id: I5bacd28d806661b9190d4b097955263a56f19a4d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/128110 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
58 lines
2.9 KiB
Dart
58 lines
2.9 KiB
Dart
// Copyright (c) 2014, the Dart project authors. All rights reserved.
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// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import 'v8_regexp_utils.dart';
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import 'package:expect/expect.dart';
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void main() {
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// Tests from http://blog.stevenlevithan.com/archives/npcg-javascript
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assertEquals(true, new RegExp(r"(x)?\1y").hasMatch("y"));
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shouldBe(new RegExp(r"(x)?\1y").firstMatch("y"), ["y", null]);
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shouldBe(new RegExp(r"(x)?y").firstMatch("y"), ["y", null]);
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shouldBe(firstMatch("y", new RegExp(r"(x)?\1y")), ["y", null]);
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shouldBe(firstMatch("y", new RegExp(r"(x)?y")), ["y", null]);
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shouldBe(firstMatch("y", new RegExp(r"(x)?\1y")), ["y", null]);
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Expect.listEquals(["", ""], "y".split(new RegExp(r"(x)?\1y")));
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Expect.listEquals(["", ""], "y".split(new RegExp(r"(x)?y")));
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assertEquals(0, "y".indexOf(new RegExp(r"(x)?\1y")));
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assertEquals("z", "y".replaceAll(new RegExp(r"(x)?\1y"), "z"));
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=476146
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shouldBe(new RegExp(r"^(b+|a){1,2}?bc").firstMatch("bbc"), ["bbc", "b"]);
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shouldBe(
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new RegExp(r"((\3|b)\2(a)){2,}").firstMatch("bbaababbabaaaaabbaaaabba"),
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["bbaa", "a", "", "a"]);
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// From crbug.com/128821 - don't hang:
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firstMatch(
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"",
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new RegExp(
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r"((a|i|A|I|u|o|U|O)(s|c|b|c|d|f|g|h|j|k|l|m|n|p|q|r|s|t|v|w|x|y|z|B|C|D|F|G|H|J|K|L|M|N|P|Q|R|S|T|V|W|X|Y|Z)*) de\/da([.,!?\s]|$)"));
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}
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