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649b29ae46
Change-Id: I5e466358cf8432750c4900f012d199b3309621d0 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140762 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Mark Zhou <markzipan@google.com>
52 lines
2.8 KiB
Dart
52 lines
2.8 KiB
Dart
// Copyright (c) 2014, the Dart project authors. All rights reserved.
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// Copyright 2013 the V8 project authors. All rights reserved.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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//
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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
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// are met:
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// 1. 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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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY 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 OF THIS
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// 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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description(
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'Test for behavior of non-capturing groups, as described in <a href="http://blog.stevenlevithan.com/archives/npcg-javascript">' +
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'a blog post by Steven Levithan</a> and <a href="http://bugs.webkit.org/show_bug.cgi?id=14931">bug 14931</a>.');
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shouldBeTrue(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("y".indexOf(new RegExp(r"(x)?\1y")), 0);
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assertEquals("y".replaceAll(new RegExp(r"(x)?\1y"), "z"), "z");
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assertEquals(
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"y".replaceAllMapped(new RegExp(r"(x)?y"), (m) => m.group(1) ?? "null"),
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"null");
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assertEquals(
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"y".replaceAllMapped(new RegExp(r"(x)?\1y"), (m) => m.group(1) ?? "null"),
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"null");
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assertEquals(
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"y".replaceAllMapped(new RegExp(r"(x)?y"), (m) => m.group(1) ?? "null"),
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"null");
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}
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