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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>
51 lines
2.6 KiB
Dart
51 lines
2.6 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('Tests that regular expressions treat non-BMP characters as two separate characters. ' +
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'From a Unicode correctness point of view this is wrong, but it is what other browsers do. ' +
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'And given that we store strings as UTF-16, it is also more efficient to implement. ' +
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'Also test some other cases related to UTF-8 and UTF-16.');
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var surrogatePair =
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new String.fromCharCode(0xD800) + new String.fromCharCode(0xDC00);
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assertEquals(new RegExp(r".").firstMatch(surrogatePair)!.group(0)!.length, 1);
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assertEquals(new RegExp(r"\D").firstMatch(surrogatePair)!.group(0)!.length, 1);
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assertEquals(new RegExp(r"\S").firstMatch(surrogatePair)!.group(0)!.length, 1);
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assertEquals(new RegExp(r"\W").firstMatch(surrogatePair)!.group(0)!.length, 1);
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assertEquals(
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new RegExp(r"[^x]").firstMatch(surrogatePair)!.group(0)!.length, 1);
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assertEquals(
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new RegExp(r".{1,2}")
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.firstMatch("!!" + new String.fromCharCode(0xA1))!
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.group(0)!
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.length,
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2);
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shouldBeNull(new RegExp(r".").firstMatch(""));
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}
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